Component supply system
When a component support member is moved forward with respect to a component feeder, the component feeder is vibrated, and the components are discharged from the component feeder on a component support surface and are supported in a dispersed state. An imaging device moves in a lateral direction, images a plurality of components on the component support surface all at once, and a suction nozzle of a component holding head holds a component with a lead in a state appropriate to be held. The suction nozzle is rotated and pivoted to insert the component in a component receiving member of one of component carriers and that is positioned at a component receiving position, with the lead oriented downward. The component carrier which receives the component is moved to a component delivery position, and the component is delivered to a mounting head of an electronic circuit assembly apparatus.
Managing dependencies between data center computing and infrastructure
Techniques for operating a data center include providing at least one fan coil unit operable to circulate a cooling airflow to a human-occupiable workspace of the data center; providing a plurality of computer racks arranged in one or more rows in the human-occupiable workspace; forming one or more warm air aisles between the one or more rows of the plurality of computer racks that are in fluid communication with an inlet of the fan coil unit through a warm air plenum, and also with an outlet of the fan coil unit through the human-occupiable workspace and the plurality of computer racks arranged in one or more rows; adjusting the associated electrical power density of one or more of the plurality of computer racks; and based on the adjustment, adjusting a characteristic of the data center.
Modular network switches, associated structures, and associated methods of manufacture and use
Modular network switches and other computer systems are described herein. A modular network switch can include a latching device for installing and removing computer modules (e.g., line cards) from an associated cabinet or enclosure. The network switch can also include interconnected computer modules (e.g., line cards, fabric cards, control modules, etc.) that include circuit boards oriented parallel to the flow of cooling air through the cabinet in the absence of a backplane or midplane oriented perpendicular to the air flow. The absence of such backplanes and/or midplanes provides a more direct air flow path through the cabinet, thereby enabling a more efficient flow of cooling air and lower operating temperatures. Additionally, the network switch can include an orthogonal arrangement of data planes, control planes, and/or power planes that can be efficiently interconnected to increase operational speed and further facilitate the flow of cooling air through the computer cabinet.
An electric device having a printed circuit board fitted with components, and at least one foam component, the foam component surrounding the circuit board at least partially so as to form a housing.
Method and device for cooling equipment provided with electronic boards, using at least one distinct fluid-cooled cooling board
A device for cooling electronic boards grouped together in an electronic unit. The principle is that of providing at least one distinct cooling board that is introduced into the unit in place of one or more electronic board(s). The manufacture, use and maintenance of such a cooling device are thereby greatly optimized.
Positive pressure-applying latch mechanism
A latch mechanism is provided for latching a field-replaceable unit within an enclosure. The latch mechanism includes a pivotable latch coupled to the field-replaceable unit via a pivot, at a first side of the unit, and a spring member associated with the enclosure. The spring member is engaged by the latch and deflects with rotating of the latch from an open position to a latched position. The pivotable latch includes the first end and a second end, with the pivot being disposed closer to the first end than the second. The deflecting spring member facilitates provision of positive pressure on the unit directed towards a second side of the unit opposite to the first side to facilitate, for example, fixedly coupling a first connector at the second side to a second connector associated with the enclosure when the unit is latched within the enclosure.
Image processing board and display apparatus having the same
An image processing board and a display apparatus having the same are provided. The image processing board includes a substrate, common input terminals installed on the substrate, and an additional input terminal selectively installed on the substrate. The additional input terminal is selectively installed on the substrate according to a type of display apparatus, and thus the image processing board may be used in various types of display apparatuses.
Display frame structure and display device
A display frame structure and a display device belonging to the field of display technology. The structure may alleviate and/or mitigate the problem for the existing display frame structure and display device that the strength will become weak in case of narrow frame design and the active area is reduced. The display frame structure of the embodiment has a side frame formed integrally with the rear housing or detachably connected to the rear housing, the side frame and the plane of the rear housing may form a recess, which may be used for accommodating the display module. The side frame may wrap a side of the display module. Therefore, a fixing structure for this side of the display module is not required, the design for the front frame may be omitted, and a narrow frame design for the display device may be achieved.
An ECU includes a substrate and a chassis. Electronic components are mounted on a first primary surface of the substrate. The chassis includes a protruding portion that protrudes toward a position different from where the electronic components are. A height of the protruding portion is greater than a height of the electronic components, and shorter than a gap between the substrate and the heat sink. When warping occurs in the substrate and the first primary surface approaches an opposing surface of the heat sink, the protruding portion contacts the first primary surface. Accordingly, the electronic components are prevented from contacting the heat sink. Further, other electronic components may be mounted on an entire area of a second primary surface of the substrate.
A display device is disclosed. The display device comprises a frame used for accommodating edges of a display panel, and a backplate that is arranged on a back side of the display panel, wherein the backplate contacts the frame and is connected with the frame through a connector. The backplate and the frame can be connected with each other stably by the connector, so that the display device has a stable structure, and the reliability of the display device can be effectively improved.
Electronic device with at least one impedance-compensating inductor and related methods
An electronic device includes a substrate having an external surface, and an integrated circuit over the external surface of the substrate. The substrate is provided with an electrical connection network including electrical links for linking the integrated circuit to another electrical device. Some of the electrical links include an impedance-compensating inductor on an external surface of the substrate.
Method for manufacturing an electric product
A method for preventing a molded body made of low melting point resin from being thermally damaged when external connection terminals provided on the molded body and external connection terminals provided on a flexible sheet are joined together via soldering. The method includes arranging the connection terminal of the molded body and the connection terminal of the flexible sheet such that the connection terminals face each other, and an electromagnetic induction heating performing electromagnetic induction heating after the arranging.
Interposer frame with polymer matrix and methods of fabrication
An array of chip sockets defined by an organic matrix framework surrounding sockets through the organic matrix framework and further comprising a grid of metal vias through the organic matrix framework. In an embodiment, a panel includes an array of chip sockets, each surrounded and defined by an organic matrix framework including a grid of copper vias through the organic matrix framework. The panel includes at least a first region with sockets having a set of dimensions for receiving one type of chip and a second region with sockets and another set of dimensions for receiving a second type of chip.
Cyanate ester compound, curable resin composition containing the same, and hardened product thereof
The present invention is a cyanate ester compound represented by the following formula (1): wherein Ar represents an aromatic ring; R1 each independently represents a hydrogen atom, an alkyl group, or an aryl group; n each independently represents an integer of 1 to 3; m+n is the same as the total number of hydrogen atoms in a monovalent aromatic group containing the aromatic ring and the hydrogen atoms; R2 represents a hydrogen atom (excluding a case where Ar represents a benzene ring; n each represents 1; R1 represents a hydrogen atom; m each represents 4, and a cyanate group is bonded to the benzene ring in the 4-position relative to an adamantyl group), or an alkyl group having 1 to 4 carbon atoms; and R3 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms.
Flexible printed circuit and detecting device, detecting method and display device thereof
Disclosed are a flexible printed circuit and a detecting device, a detecting method and a display device thereof. The flexible printed circuit comprises a body and an interface structure that is connected with the body, wherein the interface structure is provided with a plurality of mark lines dividing the interface structure into a plurality of interfaces with the same structure. When a front end interface of the flexible printed circuit of the disclosure is damaged, the front end interface can be removed along the mark line, and then an exposed rear end interface can be used successively, thus preventing a situation where the flexible printed circuit cannot be used because the only interface is damaged, thereby extending the life span of the flexible printed circuit, reducing productivity loss due to frequent replacements of the flexible printed circuit and reducing production cost.
Air cooled inline sensor light source with solid state UV emitter
Light source for an inline sensor having one or more solid state UV emitters for emitting light at single wavelengths in the range of 240 to 400 nm. The light emitted by each of the emitters has a bandwidth on the order of 10-20 nm and is directed toward a measurement detector in the inline sensor. The UV emitters are enclosed in a housing which can be attached to the inline sensor, with a reference detector and a regulator for the UV emitters also within the housing, and an aperture through which the light passes from the emitters to the measurement detector. In some embodiments, air cooling is provided for the UV emitters.
Printed circuit board design for high speed application
A printed circuit board (PCB) is disclosed. The PCB includes a substrate have a top surface and a bottom surface. A first conductive layer is disposed on the top surface of the substrate. The first conductive layer comprises a first signal net and a second signal net. An outermost insulating layer is disposed on the top surface of the substrate to cover the substrate and the first conductive layer. The outmost insulating layer comprises an opening to expose a portion of the second signal net. And, a second conductive layer is disposed on the outermost insulating layer and substantially covering at least a portion of the first signal net. The second conductive layer is filled into the opening to electrically connect to the second signal net which is able to provide one of a ground potential and a power potential.
Multi-layer thin-film coatings for system-in-package assemblies in portable electronic devices
A portable electronic device packaged into a System-in-Package assembly is disclosed. The portable electronic device can include a substrate and a plurality of components mounted on the substrate and included in one or more subsystems. Interference between subsystems or from external sources can be reduced or eliminated by disposing an insulating layer over the components, forming narrow trenches between subsystems, and depositing one or more layers of a multi-layer thin film stack on the insulating layer and filling the trenches. In some examples, the multi-layer thin film stack can include an adhesion layer, a shielding layer, a protection layer, and a cosmetic layer. In some examples, the multi-layer thin film stack can include multi-functional layers such as a protection and cosmetic layer.
Plasma flow interaction simulator
A plasma interaction simulator is presented. The simulator magnetically induces multiple distinct flows of plasma within a physical plasma vessel. The plasma flows collide with each other at flow interaction boundaries where discontinuities arising due to differences between the flows give rise to interactions. Sensors can be incorporated into the plasma simulator to observe and collect data about the plasma flow interactions.
System and processes for commissioning indoor industrial lighting
Processes for commissioning an indoor lighting system composed of a plurality of lighting fixtures, each including a lighting associate, include the steps of establishing a direct connection table for each lighting associate; forming a full direct connection table represented as a square matrix and comprising data derived from all direct connection tables; grouping the lighting associates using an element reduction operation on the square matrix; and transmitting a group direct connection matrix to each lighting associate. The lighting fixtures may include a first transmitter for transmitting a first message to a second lighting associate; a first receiver for receiving a second message from the second lighting associate; a second transmitter for transmitting a third message via a lighting associate support network; a second receiver for receiving a fourth message via the lighting associate support network; an interval timer; a microcontroller in communication with the interval timer, programmable to execute a networking and communication algorithm to process the first, second, third, and fourth messages; an LED lamp; and a switch between the lamp and a power line, controllable by the microcontroller.
Candle flame simulation using a projection system
Electric candles are described having a candle-shaped housing, a flame element extending from the housing and one or more projectors disposed within the candle-shaped housing such that a media file can be projected on to a first surface of the flame element using the pico projector. The flame element could be fixed or move with respect to the housing. The flame element could be transient and only exist when the candle is on.
Transient power communication
A power supply system providing communication from a master module to at least one slave module via transients, to alter operation of a load, is provided. The master module output a supply voltage that is either a normal supply voltage or a reduced supply voltage. The outputted supply voltage depends on input corresponding to a communication to be sent to the slave module to alter operation of the load of the slave module. The slave module receives the supply voltage and interprets the received supply voltage, which may vary between the normal and reduced supply voltages, to determine what the communication from the master module is. The slave module then uses information from the communication to appropriately alter operation of its load.
Backlight, control method thereof and display device
A backlight and a control method for the backlight, and a display device are disclosed; a backlight includes: at least two light sources with different color temperatures and a control module configured to adjust a color temperature of the backlight by respectively controlling a drive current of each light source.
Vehicle light controller apparatuses, methods and systems
The VEHICLE LIGHT CONTROLLER APPARATUSES, METHODS AND SYSTEMS include circuits for coupling lighting systems of a vehicle to controls for the windshield wipers. For example, when a vehicle operator engages the windshield wipers, vehicle lighting systems such as the headlights, tail lights, side markers, tag lights, and/or the like may be automatically engaged as well, without further user action. In some embodiments, the disclosed electronic circuitry may be configured as a kit suitable for retrofitting an existing vehicle system.
Color changing light and controlling method and apparatus thereof
The present invention discloses a color changing light and controlling method and apparatus thereof. The controlling method for a color changing light includes: each terminal of one way of four color substrate being connected together and acted as a common end, the common end being connected to a first voltage; two ways of the four color substrate being set up as a group, other terminals of the two ways being connected to a second voltage and a third voltage respectively; and polarities and voltages of the first voltage, the second voltage, and the third voltage being adjusted to turn on or turn off the four color substrate.
Method and apparatus for controlling electrical power usage based on exact sun elevation angle and measured geographical location
A method and apparatus are provided to control artificial lighting using accurate geographical location, date and time, in order to activate such electrical activity only during needed periods of actual terrestrial darkness related to sun elevation. Accurate, real-time calculation of sun elevation relative to geographical location and date/time allow natural lighting characteristics such as natural light spectrum and intensity to be matched to artificial lighting, in order to provide a smooth transition in ambient lighting and to save energy. An apparatus according to the invention comprises a global positioning system (GPS) element for determining latitude, longitude, altitude, date and time and a calculation element for determining sun elevation angle accurately. A specific embodiment requires only desired sun elevation angle inputs from the user for controlling electrical switches in a control system.
Device to allow a two-way switch to operate in a multiple-switch electrical circuit
A device to allow a two-way switch to be used in an electrical circuit comprising multiple switches. Using the invention device, the two-way switch can operate as either a three-way switch or a four-way switch in a multiple-switch electrical circuit using AC mains voltage.
Method of manufacturing display apparatus
Provided is a method of manufacturing a display apparatus, including forming a display unit on a first substrate; applying a fit on an encapsulating substrate; melting at least a portion of the frit on the encapsulating substrate; arranging and bonding the first substrate and the encapsulating substrate after melting at least a portion of the frit on the encapsulating substrate, so that the frit is disposed between the first substrate and the encapsulating substrate; and completely melting the frit between the first substrate and the encapsulating substrate.
Bleeder for improving dimming of LED
Bleeder circuits (1) comprise detection circuits (11) for detecting values of amplitudes of feeding currents for feeding light emitting diode circuits (2) and comprise introduction circuits (12) for introducing bleeder currents. Values of amplitudes of bleeder currents are defined in response to detection results from the detection circuits (11). As a result, disadvantageous connections between the bleeder circuits (1) and dimmers (4) are avoided, and the bleeder circuits (1) can be located near the light emitting diode circuits (2) and they can use the same heat sink. The detection circuit (11) may comprise a first resistor circuit (31), and the introduction circuit (12) may comprise a first transistor circuit (41). The detection circuit (11) may further comprise a second resistor circuit (32) for coupling the first transistor circuit (41) to the first resistor circuit (31) and may comprise an operational amplifier (51) or a second transistor circuit (42) for controlling the first transistor circuit (41).
Reconfiguration in a wireless mesh network
There is provided mechanisms for reconfiguration in a wireless mesh network served by at least one network node. A method is performed by a first network device having a first metric. The method comprises maintaining an operative connection to a network node via a second network device, the second network device having a better metric than the first metric. The method comprises acquiring an indication that the first network device is to be detached from the operative connection to the network node. The method comprises scanning for, and establishing an operative connection to, a further second network device having a metric, for establishing a new operative connection to one of the at least one network node. The method comprises updating the first metric based on the metric of the further second network device.
Support blacklisting devices on WLAN access
A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may be a core network entity. The apparatus sends a request for a device identifier of a UE to the UE. The apparatus receives a response message including the device identifier of the UE from the UE. The apparatus determines to maintain, establish, terminate or prevent a connection with the UE through WLAN access based on the device identifier of the UE.
Data card connection management method, apparatus and system, and data card
A data card connection management method which is applied to an electronic device on which a plurality of connection managers having connection management matching features are installed, the data card connection management method includes the following steps: when detecting that an access data card is connected to the electronic device, acquiring a connection management matching feature of the access data card; selecting a connection manager matching the connection management matching feature of the data card from the plurality of connection managers having the connection management matching features as a first target connection manager; and starting and only starting the first target connection manager. Correspondingly, a data card connection management apparatus and system, and a data card are further provided. The problem that different types of data card connection managers cannot normally operate on the electronic device is effectively solved.
Communication control method, user terminal, and communication apparatus
A communication control method comprises: transmitting, by a communication apparatus, a Device to Device (D2D) resource notification to a user terminal. The D2D resource notification includes information indicating a predetermined D2D radio resource available in a D2D proximity service and information indicating a condition not allowing for use of the predetermined D2D radio resource.
Methods of adding or removing a control into/out of a network and apparatus for carrying out said methods
To enable an addition or a removal of a control into or from a communication line without an interruption of the ongoing communication of the communication line, a method is provided of adding a control into a network of at least one first and one second control, which are provided for operating actuators, during an operation of the network, wherein the first and second controls are connected to one another in a communication line and communicate with one another via a first transmission connection of the first control and a second transmission connection of the second control; and wherein each control has an unambiguous identifier, comprising the steps of providing a third transmission connection and a fourth transmission connection between the control to be added and the first control to be connected upstream of the control to be added; providing a fifth transmission connection and a sixth transmission connection between the control to be added and the second control to be connected downstream of the control to be added; and activating the third to sixth transmission connections between the first and second controls and the control to be added on the simultaneous deactivation of the first and second transmission connections between the first and second controls and methods of removing a control from a network of at least one first and one second control and the control to be removed.
Communication terminal device, communication device, communication network server and method for controlling
In various aspects of this disclosure, a communication terminal device may be provided. The communication terminal device may include a cellular wide area radio communication technology circuit. The cellular wide area radio communication technology circuit may be configured to provide a communication according to a cellular wide area radio communication technology. The communication terminal device may further include a circuit. The circuit may be configured to provide a direct communication terminal device to communication terminal device communication bypassing a radio access network according to information received via the radio access network. The communication terminal device may further include a message generator. The message generator may be configured to generate a message to transmit to a base station. The message may include at least one message field specifying information about at least one capability to provide the direct communication terminal device to communication terminal device communication of the communication terminal device. The message may be generated for a network communication protocol.
Terminal device, base station apparatus, communication system, communication method, and integrated circuit
There are provided a technology associated with a terminal device, a base station apparatus, a communication system, a communication method, and an integrated circuit, in all of which efficient communication control is performed. A terminal device makes a connection to a base station apparatus using a first cell group and second cell group, and, in a case where the second cell group that includes at least one cell is changed based on an information element which is notified with a radio resource control message that is received from the base station apparatus, starts counting of an RRC timer relating to a random access procedure for the cell in the second cell group, and initiates the random access.
Contention resolution techniques in frequency and spatial domains
Methods, systems, apparatuses, and devices are described for contention resolution techniques for medium access using a spatial dimension, a frequency dimension, or a combination of the both. A wireless station may determine that an access timer associated with backoff operations has expired. The wireless station may identify a domain index associated with the frequency domain, the spatial domain, or a combination. The wireless station may access the wireless medium according to the identified domain index. The wireless station may, prior to sending other transmissions, transmit a trigger frame including information associated with the resources of the wireless medium that are reserved for communications. Other wireless stations may share the medium and use the free resources.
Method and network efficiency node for increased data throughput in wireless networks
A method, computer program and a network efficiency node in a wireless communications network for enabling increased data throughput to a UE, the method comprising: retrieving information of UE configuration data, receiving an indicator of a first channel capability from the UE, determining a first data transport unit size based on the received indicator of the first channel capability, selecting a second channel capability different than the received indicated first channel capability and limited based on the information of the UE configuration data, determining a second data transport unit size based on the selected second channel capability, and transmitting scheduling information to the UE to use the second data transport unit size, thereby enabling increased data throughput.
System and method for digital communications with interference avoidance
A method for communicating in a wireless communications system includes receiving an indicator indicating a utilization of network resources for carrying an acknowledgement information, and determining whether the station is permitted to transmit a packet. The method includes when the station is permitted to transmit the packet, determining a first location of a first network resource in accordance with the indicator, and transmitting the packet at the first location of the first network resource.
Method and radio node for managing resources for D2D discovery in an ad-hoc radio communication network
A method and a radio node (110) for managing resources for D2D discovery in an ad-hoc radio communication munication network (100). The radio node (110) receives beacon signals from a number of further radio nodes (120, 130, 140). A respective beacon signal includes values indicating power received at the respective further radio node (120, 130, 140) for each resource of the amount of resources. The radio node (110) calculates, for each respective further radio node (120, 130, 140), values of SINR based on the values indicating power received at the respective further radio node (120, 130, 140). The radio node (110) selects at least one resource out of the amount of resources to increase number of discovering further radio nodes (120, 30, 140) and/or to increase average SINRover the further radio nodes (120, 130, 40). The radio node (110) broadcasts a further beacon signal on the selected at least one resource.
Method and apparatus for determining optimized wireless link selection for a mobile device along a predicted path
An information handling system includes a storage device for storing a spatial-temporal radio frequency profile for indicating signal quality for wireless links available at the location. The information handling system further includes an application processor that selects a predicted future path for a mobile information handling system during a future time interval. The application processor determines predicts radio quality of wireless links over the predicted future path selected for the system based on measured radio quality of service parameters for locations.
System and method for mitigating co-channel interference in white space modems using interference aware techniques
Disclosed is a system for mitigating co-channel interference (CCI) in white space (WS) modems. The system includes a base-station that includes a base-station transmitter and a base-station receiver. The base-station receiver receives an OFDM signal from one or more CPE transmitters. An interference detection module detects presence of co-channel interference in carriers of the OFDM signal and determines co-channel interference affected carriers. A dynamic notch filter module (i) receives central interference carriers from interference detection module and (ii) mitigates the co-channel interference of co-channel interference affected carriers without affecting frame detection capability of the system. An interference aware signal to noise ratio (SNR) estimation module determines an average signal to noise ratio (SNR) of (i) interference unaffected carriers and (ii) co-channel interference affected carriers. An interference aware de-mapper module processes average signal to noise ratio of (i) interference unaffected carriers and (ii) co-channel interference affected carriers.
Physical uplink control management in LTE/LTE-A systems with unlicensed spectrum
Uplink control channel management is disclosed for LTE/LTE-A communication systems with unlicensed spectrum in which two or more physical resource blocks (PRBs) are allocated for uplink control channel transmission. The uplink control information (UCI) payload may be determined based on clear channel assessment (CCA) information associated with carriers scheduled for transmission of the UCI data. With the UCI payload determined, two or more uplink control channel messages may be generated according to at least one control channel format, wherein uplink control channel messages include the UCI payload. These generated uplink control channel messages may then be transmitted over the allocated PRBs.
Forwarding HARQ feedback considering latency over available channels
It is presented a method performed in a first network node. The method comprises the steps of: receiving an uplink transmission from a mobile communication terminal; determining, based on content of the uplink transmission, information to be transmitted over a first communication channel when the content comprises control data intended for a second network node; transmitting the information over the first communication channel to the second network node when the information is to be transmitted over the first communication channel; and transmitting the information via a second communication channel, the second communication channel being physically separate from the first communication channel, when the information is not to be transmitted over the first communication channel. A corresponding network node is also presented.
SDN-based LTE network structure and operation scheme
The present invention relates to a network structure for effectively applying a software-defined networking (SDN) technology to an LTE network and an operation of a system on the basis of the same. The present invention therefore provides a method for controlling communication by an SDN controller in an SDN-based wireless communication network, the method comprising the steps of: receiving information on a UE from a gateway controller as the UE initially accesses an eNB; selecting at least one Openflow switch (OFS) for processing traffic of the UE on the basis of the information; and transmitting a request for setting a packet forwarding rule for processing the traffic of the UE to the at least one OFS.
Conditional network capabilities for improved system performance
The disclosure pertains to the field of reporting network capabilities in a cellular communication network. The disclosure relates to a method, performed in a wireless device 1, for providing a network capability report to a radio network node 10, wherein the wireless device and the radio network node are comprised in a wireless communications network. The method comprises receiving S2 from a network node 10, 4 in the wireless communications network 20 information specifying features that the wireless communication network supports for the wireless device 1. The method further comprises determining S3 capabilities of the wireless device with regard to the specified features and sending S4 to the radio network node 10 a network capability report message defining the capabilities of the wireless device with respect to the specified features. The disclosure also relates to corresponding nodes and to a computer program.
Portable communication device and communication control method
According to an embodiment of the disclosure, a portable communication device includes a first communication module, a second communication module, and a control module. The first communication module can communicate with a first network wirelessly via a first protocol. The second communication module can communicate wirelessly via a second protocol. The control module can control the first communication module and the second communication module. When the portable communication device starts recharging while communication by the second communication module is disable, the control module can permit the second communication module to connect with at least one external device in a first mode. During the second communication module sets in the first mode, the external devices can communicate wirelessly via the second communication module and the first communication module.
Frequency resource allocation for a narrow-band cellular internet of things system
Improved systems, methods, and apparatuses for allocation of frequency resources, or tones, for a Cellular Internet of Things (CIoT) system are described. In various aspects, interference may be reduced for a CIoT system and an adjacent wireless communications system through identifying a first group of narrowband tones for the CIoT system that will have reduced interference with wideband tone transmissions of the adjacent wireless communications system and may thus support higher power transmissions.
Systems and methods for improved communication efficiency in wireless networks
Methods and apparatuses for providing wireless messages according to various tone plans can include a system configured to generate a message according to a 2048-tone plan having 1960 data tones. The 2048-tone plan includes two identical 1024-tone plans each having 980 data tones. The system can further perform segment parsing to divide data into two data portions, each portion for transmission over one of two 80 MHz bandwidths, according to one of the two identical 1024-tone plans. The system can further perform low density parity check (LDPC) tone mapping separately on each of the two data portions. The system can further provide the message for transmission over a 160 MHz bandwidth including the two 80 MHz bandwidths.
Apparatus and method for transmit power control command transmission
A user equipment (UE) performing transmit power control (TPC) transmission slot assignment includes a receiver, a determining means and a slot allocator. The UE receives one or more TPC commands from two or more radio links, determines a TPC combining period in accordance with a primary slot position, wherein a primary TPC symbol transmission of the primary radio link is present at the primary slot position; a slot allocator that allocates a secondary slot position for a secondary TPC symbol transmission of the secondary radio link in accordance with the TPC combining period. A method and a radio base station are also included herein.
Resource management for UEs under coverage enhancement
Methods, systems, and devices are described for wireless communication within and for user equipment (UE), including lower-complexity devices, which may have intermittent communication needs, low data rates, hard-to-reach locations, and the like. Devices within a wireless communication system may utilize transmission time interval (TTI) bundling to identify and employ various encoding schemes according to particular channel, transmission, and/or environmental conditions. Devices may also monitor and/or decode control-based transmission, control-less transmission, or both. In some examples, devices may monitor various channels based on a TTI bundling length. Some or any of these techniques may allow for coverage enhancement of UEs, including low-complexity UEs.
Method and apparatus for generating, transmitting, and receiving a data frame in a wireless communication system
The present invention relates to a technique relating to a method and apparatus for generating, transmitting, and receiving a data frame having a newly proposed format in a wireless communication system. According to the technique, the method for generating a data frame in a wireless communication system comprises the following steps: generating at least one first subframe; generating at least one second subframe; and generating a data frame including the first and second subframes, wherein the first and second subframes include length information of a MAC protocol data unit (MPDU) contained in the first and second subframes, and the length information of the MPDU contained in the second subframe is zero.
Communication device and communication method for determining a combination of base stations used to communicate with a communication terminal
An electronic device that communicates with a plurality of base stations by Coordinated Multiple Point transmission and reception (CoMP), the base stations including at least a first base station and a second base station. The electronic device receives configuration information from the first base station, the configuration information indicating a first period of a first reference resource; and receives a second reference resource from the second base station during the first period. The first reference resource corresponds to a muted power Channel State Information-Reference Signal (CSI-RS) and the second reference resource corresponds to a non-muted power CSI-RS.
Telecommunications systems and methods for machine type communication
A method for communicating data between a base station and a terminal device in a wireless telecommunications system, for example an LTE-based system. The wireless communication system uses plural frequency sub-carriers spanning a system frequency band. Physical-layer control information for the terminal device is transmitted from the base station using sub-carriers selected from across the system frequency band, for example to provide frequency diversity. However, higher-layer data for the terminal device is transmitted using only sub-carriers selected from within a restricted frequency band which is smaller than and within the system frequency band. The terminal device is aware of the restricted frequency band, and as such need only buffer and process data within this restricted frequency band during periods where higher-layer data is being transmitted. The terminal device buffers and processes the full system frequency band during periods when physical-layer control information is transmitted.
Methods and user equipments for data demodulation
Methods and user equipment (UE) for data demodulation. A UE comprises a receiver (Rx), a transmitter (Tx), a demodulator, a decoder, a processor, and a memory. An order message can be received by the receiver from a radio network node. The order message orders the UE to utilize both additional pilots and common pilots. In response to the receiver receiving the order message, the transmitter may return an ACK message to the radio network node. The receiver may also be configured to receive data from the radio network node. The memory stores computer program code which, when run in the processor, causes the demodulator to demodulate received data utilizing additional pilots in addition to common pilots. Furthermore, the memory and the computer program code are configured to, together with the processor, cause the demodulator to demodulate received data utilizing only common pilots when the decoder is unsuccessful in decoding received data demodulated by utilizing additional pilots in addition to common pilots.
Method and apparatus for allocating and acquiring ACK/NACK resources in a mobile communication system
A method and apparatus are provided for receiving ACK/NACK information by a base station. The method includes transmitting data and control information to at least one UE, the control information being transmitted on a downlink control channel including at least one CCE; transmitting information related to cyclic shift values of a sequence used for transmission of the ACK/NACK information in an RB, wherein the ACK/NACK information and CQI are multiplexed in the RB; checking a resource for reception of ACK/NACK information mapped to the at least one CCE based on the information related to cyclic shift values and a mapping rule between CCEs and a resource for reception of the ACK/NACK information, wherein the resource for reception of the ACK/NACK information is identified by a cyclic shift index, an orthogonal sequence index, and a resource block index; and receiving the ACK/NACK information for the transmitted data using the checked resource.
Method and apparatus for spatial multiplexing in wireless communication system
The present disclosure relates to a communication method and system for converging a 5th-Generation communication system to support higher data rates beyond a 4th-Generation system with a technology for Internet of Things (IoT). The present disclosure is applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. A method and apparatus for two-dimensional spatial multiplexing transmission using multiple antennas in a wireless communication system is provided. A user equipment receives pieces of antenna configuration information and corresponding channel measurement resources from a base station, and sends channel information with respect to at least one antenna configuration as feedback to the base station. An indicator indicating a composition of the feedback information is transmitted first, and then the composition information and feedback information are transmitted.
Restrictions on control channel scheduling
Methods and apparatus are disclosed for improving blind-decoding and interference suppression associated with interference from non-serving cells in a wireless network, specifically, performing interference suppression on the non-serving cell control channel. Various aspect employ network-assisted blind-decoding of non-serving cell signals at UEs through the coordination, communication, and use of communication restriction conditions. Network aspects may restrict certain communications between eNBs and served UEs, and communicate the restrictions to non-served UE. The non-served UEs can then leverage the restrictions for more efficient blind-decoding of interfering eNB signals and interference cancellation of interfering eNB signals.
Method and apparatus for configuring control channel resources in communication system
A method and an apparatus for configuring a control channel in a communication system, according to the present invention, allocate resources of different sizes according to a distributed transmission mode and a localized transmission mode and apply different antenna transmission techniques, to a control channel on the basis of frequency division. In addition, the present invention relates to a method by which a terminal estimates a channel irrespective of the transmission mode. According to the present invention, a control channel transmitted to different terminals from a base station can be efficiently multiplexed and the control channel be received faster by reducing the complexity of the terminal.
User equipment and method for application agnostic discontinuous reception (DRX) triggering
Embodiments of user equipment (UE) and methods for application-agnostic discontinuous reception (DRX) triggering are generally described herein. In some embodiments, a UE is configured to monitor buffer status history and traffic activity history, and trigger DRX mode activation based on the buffer status and the traffic activity history. In some embodiments, the UE may determine a probability, based on the buffer status history and the traffic activity history, that a level of traffic activity that cannot be handled during DRX mode would occur. In these embodiments, the UE may trigger DRX mode activation when the probability is below a threshold.
Uplink scrambling during random access
The technology described in this case facilitates random access by a user terminal with a radio base station. A user terminal determines one of a first type of uplink scrambling sequences and generates a random access message using the determined one of the first type of uplink scrambling sequences. The random access message is transmitted to the base station. The user terminal receives from the base station a second, different type of uplink scrambling sequence and uses it for subsequent communication with the radio base station. For example, the first uplink scrambling sequences may be specifically associated with the radio base station's cell area or a random access radio channel associated with the radio base station, but they are not specifically assigned to any user terminal, and the second uplink scrambling sequence may be selected from a second set of uplink scrambling sequences specifically assignable to individual user terminals.
Allocation for paging reception
A method is disclosed of a wireless communication device adapted to communicate using a radio access transceiver alternatingly in accordance with a first radio access technology and in accordance with a second radio access technology. The method comprises allocating a number of time periods during communication in accordance with the first radio access technology to reception of a paging signal of the second radio access technology, wherein the number is dynamically variable based on a result of a (block) decoding of at least one previous paging signal of the second radio access technology. The number may be set based on at least one respective previous number of time periods required for successful (block) decoding of the at least one previous paging signal. Furthermore, the number may be set to a maximum value if an immediately previous paging signal was not successfully decoded.
Network device loss prevention using a distributed wireless network
A system that includes a plurality of access points and a device tracking controller. The device tracking controller is configured to receive signal strength information for a first endpoint device and a second endpoint device from at least one access point from the plurality of access points. The device tracking controller is further configured to determine a first device location for the first endpoint device and a second device location for the second endpoint device based on the location of the at least one access point. The device tracking controller is further configured to periodically update the first device location and the second device location. The device tracking controller is further configured to compare the first device location to the second device location and to send a notification when the first endpoint device and the second endpoint device are in different locations.
Autonomous transport navigation to a shipping location using elements of a wireless node network
Methods, media, and node-enabled autonomous transport vehicles are described for navigating to a shipping location using a plurality of nodes in a wireless node network. A node associated with the autonomous transport vehicle, such as a mobile master node, detects a signal broadcast from an ID node associated with the shipping location, and instructs the ID node to lower a power level of the broadcast signal. The mobile master node identifies the signal broadcast from the ID node with the lowered power level, and determines a direction of the ID node relative to the mobile master node based upon the detected signal with the lowered power level. The mobile master node then navigates to the ID node associated with the shipping location based upon the determined direction, which may involve providing the determined direction to an input for the vehicle's control system.
User equipment and base station for frame timing and cell group synchronization
Methods and systems for receiving a primary and secondary synchronization signal from a cell are provided. The secondary synchronization signal may be derived from at least one of a set of sequences and received based on the timing of the received primary synchronization signal. Determining a time slot within a frame of the received secondary synchronization signal and a group of the cell is provided, wherein the time slot and the group are determined by at least one sequence of the secondary synchronization signal and at least one carrier out of a plurality of carriers used for one sequence out of the at least one sequence of the secondary synchronization signal. Determining a frame timing and a sequence used by the cell, based on the received primary synchronization signal and the secondary synchronization signal is further provided.
Concurrent public land mobile network search mode (PLMN) and positioning mode in a mobile device
A method includes performing a timing measurement of one or more positioning signals received at a mobile device and searching for available public land mobile networks (PLMNs) by the mobile device. The method also includes controlling the performing the timing measurement and the searching for the available PLMNs based on whether the performing the timing measurement or the searching for the available PLMNs began first and further based on a number of available receive paths on the mobile device. If the number of available receive paths can support it, timing measurements of one or more received positioning signals may be performed concurrently with searching for available public land mobile networks (PLMNs). Otherwise, if the receive paths cannot support concurrent timing measurement and PLMN searching, the PLMN search is put on hold or suspended and the timing measurements are allowed. Upon completion, the PLMN search may then begin or resume.
Devices for multi-cell communications
A User Equipment (UE) configured for multi-cell communications is disclosed. The UE includes a processor and instructions stored in memory that is in electronic communication with the processor. The UE determines a primary cell (PCell) with a corresponding PCell time alignment timer. The UE also determines a secondary cell (SCell) with a corresponding SCell time alignment timer. The UE further determines whether the PCell time alignment timer is expired. The UE additionally sets the SCell time alignment timer as expired if the PCell time alignment timer is expired.
Uplink scheduling with power control command in an FDD half-duplex network
An efficient way to perform power control and to communicate data with a base station is desired. According to an aspect, the apparatus generates a downlink grant for a device, the downlink grant indicating to the device subsets of uplink resources allocated for transmitting data segments and subsets of downlink resources for receiving power control commands for respective data segments, the subsets of the uplink resources being non-concurrent with the subsets of the downlink resources. The apparatus transmits the downlink grant to the device. The apparatus receives, from the device, a first uplink transmission in a first subset of the uplink resources based on the transmitted downlink grant. The apparatus generates a first power control command based on the received first uplink transmission. The apparatus transmits, to the device, the first power control command in a first subset of the downlink resources. The apparatus may be a base station.
Method and apparatus for resource sharing for device-to-device and cellular communications in a multicell network
Embodiments of the disclosure provide a method and apparatus for resource sharing for D2D and cellular communications in a multicell network. The method comprises steps of: acquiring CSI on channels relating to D2D pair and a plurality of cellular users that potentially share resources with the D2D pair; and determining D2D transmit powers of the D2D pair on a plurality of frequency bands allocated to the plurality of cellular users and cellular transmit powers of the plurality of cellular users based on the CSI, to improve throughput of the multicell network.
Method and apparatus for selecting power preference information in a wireless communication system network
A method and apparatus is provided for selecting power preference information based on network usage information used for a background process of a terminal. The power preference information selection method of the present disclosure includes measuring background network usage of a terminal, acquiring network usage information of the terminal when the background network usage exceeds a predetermined threshold, selecting the power preference information based on the network usage information, and transmitting the power preference information to the base station.
Communication terminal and communication control method
A mobile phone 10 comprises a display 14, and establishes wireless communication of a dormant system with a base station (100). In a case where a first function (62) or the like is performed by a user operation, when a communication period of the wireless communication is ended, a communication state is transited to a dormant state after an active state is maintained. In contrast, in a case where the display 14 is made in a screen-off due to no user operation, when the communication period of the wireless communication is ended, a communication state is transited to a dormant state while the active state is not maintained.
Smart battery wear leveling for audio devices
Various embodiments may provide systems and methods among wireless nodes in a wireless communication network that enable balancing the batteries in the wireless nodes to be depleted at approximately the same rate. Various embodiments intelligently and dynamically swap master/slave roles among wireless nodes (e.g., wireless earpieces) coupled to a wireless source device to optimize battery life in both wireless nodes. The various embodiments may provide methods and systems for swapping master-slave roles so that there is reduced impact on the user experience.
User apparatus, communication control apparatus, and origination rejection control method
A user apparatus for use in a mobile communication network that supports a plurality of radio access technologies, including: a reception unit configured, when an origination request transmitted to the mobile communication network from the user apparatus that uses a first radio access technology is rejected, to receive an origination rejection signal including a timer value and an operation instruction from the mobile communication network; and an operation control unit configured to perform inhibition of re-origination based on the timer value included in the origination rejection signal that is received by the reception unit, wherein, in a case where the user apparatus changes a using radio access technology from the first radio access technology to a second radio access technology, the operation control unit determines whether to inhibit re-origination based on the operation instruction included in the origination rejection signal.
Long term evolution communication system to perform a mobility management entity reselection
A wireless communication system connects User Equipment (UE) to Mobility Management Entities (MMEs). The wireless communication system receives a connection message from the UE. The wireless communication system connects the UE to a first MME responsive to the connection message. The wireless communication system performs MME re-selection for the UE responsive to the connection message. The wireless communication system connects the UE to a second MME responsive to the MME re-selection.
Data transmission control method, apparatus and system
A data transmission control method, apparatus and system are provided. A radio communication node receives a data packet sent by a base station, where the data packet is generated by using a Packet Data Convergence Protocol protocol data unit PDCP PDU of the base station. The radio communication node acquires the PDCP PDU, which is used as a Radio Link Control service data unit RLC SDU, in the data packet. The radio communication node sends data generated by using the RLC SDU to a user equipment, where a user plane connection is established between the radio communication node and the user equipment, and a control plane connection is established between the base station and the user equipment.
Method and apparatus for controlling WLAN
A method of supporting handover of a terminal by a mobility management entity (MME) of a mobile communication system is provided. The method includes receiving, from a base station, a first message for handover to another network. The first message includes information on a cell to which the terminal is handed over. The method also includes transmitting, to a server, a second message for reporting information related to a location of the terminal and for providing a location continuity based on the first message. A terminal having both a 3GPP communication function and a WiFi function automatically switches on and off a WLAN according to a location, setting, or a pattern of a user, thereby preventing unnecessary battery consumption or performance deterioration and searching for an available WLAN in advance to access the WLAN.
System and method for communication between programmable base stations and software-defined radio access network controllers
Base stations as well as Radio Access Network (RAN) controllers have embedded communication agents that are responsible from control messaging between these entities that enable creation and management of RAN Slices. At a given time, it is possible that multiple active RAN slices co-exist on the same base station, where each RAN slice may run its own scheduler, its own admission control and have its own handoff management parameter values.
Resource block identifications (RBIDs) for neighbor station resource requests
Computer readable media, methods, and apparatus for resource block identification (RBIDs) for neighbor station resource requests are disclosed. An apparatus of a station is disclosed. The apparatus may include a memory, and processing circuitry coupled to the memory. The processing circuitry may be configured to decode a neighbor report comprising one or more RBIDs from a first access point. Each RBID may indicate a frequency resource allocation to transmit one bit of information to a second access point. The processing circuitry may be further configured to respond to decoding a poll trigger from the second access point, by encoding a response to the poll trigger in accordance with the corresponding frequency resource allocation indicated by one of the one or more RBIDs. The processing circuitry may be further configured to configure the station to transmit the response to the second access point in accordance orthogonal frequency division multiple access (OFDMA).
Method and device for indicating D2D related information and determining D2D transmission resource
A method and device for indicating D2D related information and determining D2D transmission resources, the method comprising: transmitting to a target base station a switching request message after determining cell switching for a device to device user equipment (D2D UE), the switching request message comprising D2D related information of the D2D UE; receiving a switching command transmitted by the target base station, the switching command comprising the resource allocation type and/or D2D transmission resource for the D2D UE in a target cell determined by the target base station based on the D2D related information; and transmitting the determined resource allocation type and/or D2D transmission resource to the D2D UE. The present invention solves the existing problem of how to determine D2D transmission resources during cell switching for a UE in D2N connection state.
Determining a target cell under cell identifier confusion during handovers at a base station
The present disclosure presents a method and an apparatus for determining a target cell that is under cell identifier confusion during handovers at a small cell. For example, the disclosure presents a method that includes detecting that a target cell confusion exists at a source small cell for a target physical cell identity (PCI) during a handover of a user equipment (UE) from the source small cell to a target small cell, comparing PCI information reported by the UE during the handover with PCI information of neighbors of each of the plurality of neighboring small cells with the same PCI value, determining whether the target small cell has been identified based at least on the PCI comparison, and performing the handover of the UE from the source small cell to the target small cell. As such, a target cell may be determined.
Techniques for handout of an active session from a first network to a second network
A method includes establishing a first session (e.g., a Wi-Fi call) via a first connection to a first network, where the connection to the first network is provided by a first receiver of the mobile device, and monitoring a characteristic of the first connection to the first network. The method includes determining whether the characteristic satisfies a threshold. When the characteristic does not satisfy the threshold, the method includes activating a second receiver of the mobile device, establishing a second connection to a second network, and initiating a handover procedure to transfer the first session from the first network to the second network. The second connection to the second network is provided by the second receiver of the mobile device. As a result of the handover procedure, the first session may be merged with or transferred to a second session (e.g., a cellular call) provided via the second network.
Techniques for modifying a transmission rate of a device having a plurality of transmission rate options are described herein. The techniques include a method comprising receiving data from a sensor indicating movement of an electronic device, the electronic device having a plurality of transmission rate options. Fail ratio metrics are gathered. The fail ratio metrics indicate a ratio of failed transmissions to successful transmissions for rate option during device movement. The method includes determining whether a given rate option has a fail ratio above a predetermined threshold; and, if so, disabling the given rate option while the device is moving.
Method for measuring interference and user equipment for LTE-U
Provided in one embodiment of the present invention is a method for measuring interference with user equipment (UE) using a licensed band and an unlicensed band, through carrier aggregation (CA) according to long term evolution-advanced (LTE-A). The method comprises the steps of: receiving, from a base station, configuration on the position of a resource for measuring interference in the unlicensed band; measuring, from the position of the resource on the unlicensed band, interference from a wireless LAN (WLAN), excluding interference from the LTE-A; and reporting the measured interference to the base station.
Discontinuous reception (DRX) enhancements in LTE systems
Embodiments of a system and method for providing DRX enhancements in LTE systems are generally described herein. In some embodiments, a system control module is provided for controlling communications via a communications interface. A processor is coupled to the system control module and is arranged to implement an inactivity timer and an on-duration timer for determining an active time for monitoring subframes on the physical downlink control channel for control signals, the processor further monitoring subframes after the active time.
Guaranteed periods of inactivity for network listening modes
The present invention provides methods, apparatuses and computer program product relating to guaranteed periods of inactivity for network listening modes. The present invention includes configuring a measurement configuration message, the measurement configuration message including measurement gap information, and transmitting the measurement configuration message to at least two user equipments connected to the base station, wherein the measurement gap information included in the measurement configuration message is the same for each of the at least two user equipments.
Terminal device and method for use in terminal device
A receiver receives a first packet signal including first position information indicating a position of a radio device from the radio device. A storage stores a list containing the first position information. An acquirer obtains second position information indicating the position of the terminal device. A determiner determines whether it is possible for the receiver to receive a second packet signal from the radio device based on the second position information and on the first position information contained in the list. An estimator estimates that a reception failure occurs in the receiver if the receiver fails to receive the second packet signal when the determiner determines that it is possible to receive the second packet signal.
Methods and systems for managing bandwidth for user devices on a transportation vehicle
Methods and systems for a transportation vehicle are provided. One method includes collecting by a processor connection information for a plurality of user devices accessing a wireless network on a transportation vehicle; determining by the processor available bandwidth for the plurality of user devices depending on a connection type; monitoring currently used bandwidth by the plurality of user devices; receiving a request from a user device to access content via the wireless connection; determining by the processor additional bandwidth for accessing the content by the user device; and rejecting the request for accessing the content when the additional bandwidth and the currently used bandwidth equals or exceeds the available bandwidth for the plurality of user devices.
Online and distributed optimization framework for wireless analytics
A method, computer program product, and computer system directed to an online and distributed optimization framework for wireless analytics. A radio network controller determines a ranking for each of a plurality of received objects using a plurality of similarity graphs. The radio network controller extracts a common structure by collaborative filtering data associated with a plurality of user devices and the plurality of received objects. The common structure is analyzed to infer usage patterns within a time slot. The radio network controller stores a subset of the ranked objects of the plurality of received objects in response to the analysis.
Discontinuous reception supporting method in wireless communication system supporting change of usage of radio resource and apparatus therefor
A method of monitoring a downlink control channel by a user equipment performing D2D (device-to-device) communication in a wireless communication system, and a user equipment therefore are discussed. The method according to an embodiment includes receiving information of a plurality of first subframes for counting a DRX (discontinuous reception) timer via a high layer signaling, the first subframes being located so as not to overlap with second subframes for D2D signal transmission; monitoring the downlink control channel at the plurality of first subframes; and counting the DRX timer, when the monitoring the downlink control channel is performed on the plurality of first subframes.
Systems and methods to augment the capacities and capabilities of cellular networks through an unmanned aerial vehicle network overlay
A system includes a wireless network and a software defined network overlaid over the wireless network. The software defined network includes at least one UAV having a software defined network device and a bridging radio component. The system includes a communication component in communication with the bridging radio component and a controller connected to the software defined network that makes routing decisions and communicates the routing decisions to the software defined network device.
Data security for internet of things (IOT) devices
System for monitoring of IoT data traffic between an IoT device connected via a cellular network and a server using Internet Protocol (IP), where the IP addresses are dynamically assigned and thus do not identify the devices. The system uses a device on the cellular network that extracts cellular identification of an IoT device involved in a data communication session and IP identification of the data communication session. The device matches the cellular identification with the IP identification. A database has device security profiles for IoT devices which can be retrieved per device via the cellular identification. Then, an enforcement unit identifies the session using the IP address and allows traffic only if the traffic conforms with the device security profile which was retrieved using the cellular identification.
Web-based wireless hotspot creation and management
A computer implemented technique includes receiving, at a server, a request to utilize an intermediary device to establish a wireless hotspot for a mobile computing device to access a private computing network via a network device. The technique includes receiving, at the server, access information from a first user having control of the private computing network and the network device, the access information specifying users and their corresponding levels of access to the private computing network via the wireless hotspot. The technique includes receiving, at the server, identification information for a second user associated with the mobile computing device. The technique also includes transmitting, from the server and to the intermediary device, a level of access to the private computing network via the wireless hotspot causing the intermediary device to grant the mobile computing device the level of access to the private computing network via the network device.
Communication and action approval system and method
A computer-based method for real-time communication authorization includes receiving, from a first communication device, a communication request, verifying, with a verification engine, a pre-approval status of the communication request, storing the communication request in an approval queue if the communication authorization the pre-approval status is set to false, issuing an alert to the authorization device, and receiving one or more authorization parameters from an authorization device.
Optimal tune away scheme for circuit switched calls on virtual subscriber identity module
A method for authenticating a circuit switched (CS) call on a virtual subscriber identity module (VSIM) includes: authenticating the VSIM for a packet switched (PS) call connection using authentication information obtained from a remote server through a software subscriber identity module (soft-SIM) connection to the remote server; initiating a call connection on a CS radio access technology (RAT) between the VSIM and a first communication network; and authenticating the VSIM CS call connection to the first communication network through the VSIM PS connection in response to an authentication request for the call connection on the CS RAT.
Access through non-3GPP access networks
When setting up communication from a user equipment UE (1), such as for providing IP access for the UE in order to allow it to use some service, information or an indication of at least one network property relating to a first network, e.g. the current access network (3, 3′), is sent to the UE from a node (13) in a second network such as the home network (5) of the subscriber of the UE. The information or indication can be sent in a first stage of an authentication procedure being part of the setting up of a connection from the UE. In particular, the network property can indicate whether the access network (3, 3′) is trusted or not.
Method and apparatus for managing access to a wireless communication network
Aspects of the subject disclosure may include, for example, a method including initiating, by a system comprising a processor, a third generation partnership project link between a mobile user equipment and a mobile management entity of a mobile packet core of a mobile communication network, initiating a non-tunneling link between stationary user equipment and a stationary packet core of the mobile communication network, and transmitting packet data from the stationary user equipment to a service through the stationary packet core via the non-tunneling link. Other embodiments are disclosed.
Common modulus RSA key pairs for signature generation and encryption/decryption
Various features pertain to embedded key generation and provisioning systems, such as systems installed within smartphones for generating public-key/private-key pairs for use in encryption/decryption and digital signature generation. In some examples, an embedded system is provided that generates two public-key/private-key pairs—one for encryption/decryption and the other for signing/verification—where the two public-key/private-key pairs share a common modulus but are otherwise distinct or uncorrelated. This allows the two key pairs to be generated more efficiently than if two entirely separate key pairs were generated and yet, at least in the context of embedded systems, satisfactory integrity and confidentiality is achieved. Techniques for decrypting and signing messages using common modulus keys are described for use by an embedded component of a mobile device, along with techniques for encrypting and verifying messages for use by a remote system such as a key provisioning server of a partner software vendor.
Method and arrangement for connectivity in a communication network
Method and arrangement for supporting connectivity of a wireless device to a network infrastructure. An infrastructure provider associates a set of device identification numbers to a first radio access provider in a subscription database of the infrastructure provider. The infrastructure provider also sets the first radio access provider as a preferred roaming partner in a SIM that comprises a subscriber identifier with a network identifier of the infrastructure provider. The SIM is provided for use in the device, to enable access to the network infrastructure over a radio access network of the first radio access provider based on the subscriber identifier and the preferred roaming partner in the SIM.
Method for detecting an adjacent active near-field communication device
According to an embodiment, a method can be performed by a first active near-field communication (NFC) device. The method includes assuming a field detection mode, generating an advertisement pulse, and checking whether a predefined condition is fulfilled. If the checking determines that the predefined condition is fulfilled, the method includes assuming an active mode and communicating with an adjacent active NFC device, and, if the checking does not determine that the predefined condition is fulfilled, the method includes staying in the field detection mode and generating another advertisement pulse.
Method and apparatus for re-searching resource of discovery signal for device to device communication in wireless communication system
Provided is a method of sending and receiving signals for a user equipment (UE) in a mobile communication system. The method may include: receiving discovery signal configuration information; scanning a discovery signal resource region determined based on the discovery signal configuration information; transmitting a discovery signal at a resource of the discovery signal resource region selected based on the scanning result; and rescanning the discovery signal resource region on the basis of at least one of the discovery signal configuration information and the scanning result. There are provided a method and apparatus for sending and receiving a discovery signal for D2D communication in a wireless communication system. A UE is allocated discovery signal transmission resources via signaling from the ENB and periodically rescans the discovery signal transmission resources. Thereby, it is possible to send and receive discovery signals in a more efficient manner.
Method for managing incoming calls in mobile devices
A method that enables a callee to manage incoming voice calls in a way that in a period of time that he sets the method prevents the operation of the alerts mechanisms of his mobile device. In case of an incoming voice call the method sends a notice to the caller mobile device notifying that the callee prefers to receive now only urgent voice calls. The method enables the caller to decide according to his sole discretion whether to complete this voice call.
Reestablishment procedure for an emergency call
Traditional rules that apply to cell selection are overridden to allow cell selection on an acceptable cell, in addition to cell selection on a suitable cell. Once a mobile device acquires service on an acceptable cell, mobile device can inform network of the emergency call in progress or initiation of an emergency call, which allows network to perform necessary actions to support the emergency call during establishment/reestablishment.
Emergency call system and method
An example of an emergency call system includes a device for triggering an emergency call and a communications device having a secure element. In various implementations, the secure element includes at least two profiles, one of which is an emergency profile; and a receiver that receives, over a local communications channel, an event issued by the device for triggering an emergency call. The communications device may also include means for activating the emergency profile, which enables emergency calls to be made in a communications network if the emergency profile is not already active. The communications device may also include means for calling an emergency number in the communications network in order to make the emergency call.
Communication device, transmission interval control device, method for transmitting location information, method for controlling transmission interval of location information, and recording medium
A communication device, which is to be mounted on a vehicle, includes: identifying means that identifies a location of the communication device; communication means that successively transmits location information that indicates the location of the communication device that is identified by the identifying means; and setting means that sets a transmission interval at which the location information is to be transmitted in accordance with the location of the communication device that is identified by the identifying means.
System for collection, analytics, and display of indoor positioning data
An indoor positioning data system includes a mobile device having an indoor positioning system (IPS) mobile app, an enterprise server having a control processor, a datastore including a data metric analytic algorithm, and position beacons distributed throughout a volume of an indoor space to be monitored configured to broadcast their respective positions. The control processor configured to perform the data metric analytic algorithm, to collect position information from the mobile device and position information from the position beacons, to compare the collected position information to a predetermined distance threshold, if the collected position information is within the predetermined distance threshold, record the position of the mobile device in the data records, and display results of the data metric algorithm on a display of a client computing device. A non-transitory computer-readable medium containing executable instructions is also disclosed.
Apparatus, system and method of performing a position measurement
Some demonstrative embodiments include apparatuses, systems and/or methods of performing a range measurement. For example, a first wireless communication device may include a radio to communicate a discovery frame with a second wireless communication device, the discovery frame including at least one movement indication field to indicate a time of movement of a sender of said discovery frame; and a controller to perform a range measurement procedure with said second wireless communication device.
Advance notification system, advance notification method, and mobile communication device
An advance notification system, an advance notification method, and a mobile communication device are disclosed. In one embodiment, an advance notification system comprises a first mobile device and a second mobile device. The first mobile device stores a schedule including a scheduled time and a scheduled place and comprises a transmitter and at least one first processor. The second mobile device acquires a device position of the second mobile device itself. The at least one processor determines whether an advance notification is required on the basis of the device position and the scheduled place. The at least one processor also causes the transmitter to transmit the advance notification to the second mobile device when determining that the advance notification is required.
Method of and system for estimating position
A method of estimating the position of a user device is provided. The user device is initially in electronic communication with a positioning system controller through a communication network. The method comprises determining that a user device meets one or more proximity criteria with respect to an offline region where electronic communication between the user device and the positioning system controller, through the communication network, is expected to meet one or more failure criteria. Responsive thereto and in advance of the user device entering the said offline region, the positioning system controller transmitting local positioning data to the user device, the local positioning data comprising data concerning electromagnetic signal sources in the said offline region. The user device subsequently estimates its position while it is within the offline region by measuring signal data from a plurality of electromagnetic signal sources and processing the measured signal data and the local positioning data. The method may be used by, for example, a smartphone to estimate its position.
Population estimation apparatus, program and population estimation method
It is difficult to distinguish facility types. It is difficult to estimate a fluctuating population from the number of communication terminals. A log information obtaining unit which obtains log information in which positional information of a wireless terminal and clock time information at which the positional information is obtained are associated, a population fluctuation pattern determination unit which determines a population fluctuation pattern based on the log information, a type determination unit which determines a type of a facility based on the population fluctuation pattern determined by the population fluctuation pattern determination unit, with reference to basic pattern information indicating a population fluctuation pattern for each facility type, and an estimated value deriving unit which extracts calculation basic information corresponding to the facility type determined by the type determination unit to derive an estimated value of the population movement of the facility are comprised.
Method and apparatus for to determine the location of a wearable device
A mobile station that is wirelessly linked to a wearable device, receives a request to initiate a location session from the wearable device, e.g., which may be in the form of an emergency call. The mobile station determines whether the location of the mobile station may be used as a location of the wearable device, e.g., by determining if the wearable device is proximate to the mobile station. For example, the mobile station may check to see if the mobile station is wirelessly linked to a wearable device through a wireless personal area network (WPAN). The mobile station initiates the location session for the wearable device with a location server. If the location of the mobile station may not be used as a location of the wearable device, the location session for the wearable device does not use position information obtained from the mobile station.
Method of and apparatus for access geographical location information service
The invention provides a solution to accessing for a geographical location information-based service in a server of a machine type communication based communication system, where firstly a server broadcasts or multicasts a content request message, the content request message comprising information on requested content and information on a target geographical location; then the server receives a response message from at least one user equipment, the response message indicating that the at least one user equipment possesses the requested content and the at least one user equipment being located within the target geographical location; and finally the server acquires the requested content from the at least one user equipment.
Bluetooth low energy triggering NAN for further discovery and connection
In some embodiments, one or more wireless stations operate according to Neighbor Awareness Networking (NAN)—direct communication with neighboring wireless stations, e.g., direct communication between the wireless stations without utilizing an intermediate access point. Embodiments of the disclosure relate to triggering a NAN datapath using Bluetooth low energy (BLE) signaling. The NAN datapath embodiments described herein provide a mechanism through which devices can communicate to establish a Wi-Fi connection via non-Wi-Fi signaling and provide services. Aspects of the datapath development include Wi-Fi connection establishment and datapath initiation. The datapath model may be implemented for unicast and/or multicast communication between wireless stations, including mobile stations.
Fault management method and apparatus
Disclosed are a fault management method and apparatus. The method includes: an M2M gateway receiving a fault management task sent by an M2M service platform; and the M2M gateway executing the fault management task. The fault management apparatus, applied to a machine to machine (M2M) gateway, comprises: a task receiving module, configured to: receive a fault management task sent by an M2M service platform; and an executing module, configured to: execute the fault management task. The fault management method and apparatus of the present document can be used to realize the M2M platform fault management and solve the M2M platform fault monitoring problem.
Apparatus and method for disabling portable electronic devices
A device includes a delay element that can produce from the demodulated output of a radio receiver, a delayed signal that is delayed by an adjustable amount. A processor is coupled to the delay element and to a correlation element. The correlation element can correlate an acoustic signal from a transducer with information from the delayed signal from the delay element. The processor can adjust the delay and detect from the correlation element one or more peak correlations. The delays dictated by the processor, that produce one or more peak correlations, are used to deduce a use of a portable electronic device proximal to an operator's station, and to operate a switching element for altering services at the portable electronic device.
Method and apparatus for presenting to a user of a wearable apparatus additional information related to an audio scene
A method for modifying an audio scene and/or presenting additional information relevant to the audio scene includes capturing audio signals from the audio scene with a plurality of microphones; outputting an audio signal with a plurality of acoustical transducers; processing the captured audio signals, where the processing comprises one or more of filtering, equalization, echoes processing, and beamforming; separating and distinguishing audio signal sources using the processed audio signals; selecting at least one separated audio signal source; classifying the at least one selected separated audio signal source; retrieving additional information related to the classified audio signal source; and presenting the additional information in a perceptible form.
Signal control apparatus
A signal control apparatus comprises: a first delay unit that receives a modulated signal corresponding to a positive input signal component; a second delay unit that receives a modulated signal corresponding to a negative input signal component; transducers that receive signals from the delay units and that output, as ultrasonic waves, the received signals; a microphone that detects the ultrasonic waves outputted from the transducers; a waveform characteristic detection unit that integrates the detected ultrasonic waves, thereby detecting the waveform characteristics of the positive sonic wave and of the negative sonic wave; and a delay adjustment unit that inputs, based on the detected waveform characteristics, to the first delay unit or second delay unit, the information of a delay amount being in accordance with a phase difference between the signal outputted from the first delay unit and the signal outputted from the second delay unit to reduce the phase difference.
Method and mobile device for processing an audio signal
A method for processing an audio signal includes: decomposing an audio signal comprising spatial information into a set of audio signal components; and processing a first subset of the set of audio signal components according to a first processing scheme and processing a second subset of the set of audio signal components according to a second processing scheme different from the first processing scheme, wherein the first subset comprises audio signal components corresponding to at least one frontal signal source and the second subset comprises audio signal components corresponding to at least one ambient signal source; and wherein the second processing scheme is based on crosstalk cancellation.
Method for controlling audio signal and electronic device supporting the same
An electronic device is provided including a housing, an opening formed on a side of the housing, a hole connected to the opening, a receptacle disposed inside the hole, having a structure for receiving an external connector, and comprising a plurality of pins, a memory, a processor electrically coupled to the memory, and a circuit electrically coupled to the processor and the receptacle. When the external connector is inserted into the receptacle, the circuit may receive at least one of a signal and a current through at least one of the pins, and selects one of a plurality of audio signal processing methods provided to the external connector through the receptacle based on at least one of the received signal and the current.
Automating repairs to audio systems
In one embodiment, a healing engine included in an audio system enables the audio system to perform self-repair operations. Upon detecting that an audio device included in the audio system has failed, the healing engine executes repair operations. First, the healing engine identifies any new audio devices added to the audio system after the failed audio device failed. The healing engine then selects one of the new audio devices as a replacement for the failed audio device. Finally, the healing engine configures the selected audio device to implement a system identity that previously identified the failed audio device with respect to the audio system. In this fashion, the healing engine replaces the failed audio device with the selected audio device. By automating the repair process, the healing engine reduces the time and effort required to restore the audio system to a fully operational state compared to conventional, manually-based techniques.
Binaural hearing aid with multi functions
The present invention relates to a binaural hearing aid with multiple functions in which multiple functions such as a wireless headset function, a measuring pulse function, a pulse information transmitting function, etc. in addition to a hearing aid function are implemented to improve user convenience.
Peer to peer hearing system
The application relates to: A hearing system comprising first and second hearing aid systems, each being configured to be worn by first and second persons and adapted to exchange audio data between them. The application further relates to a method of operating a hearing system. The object of the present application is to provide improved perception of a (target) sound source for a wearer of a hearing device (e.g. a hearing aid or a headset) in a difficult listening situation. The problem is solved in that each of the first and second hearing aid systems comprising an input unit for providing a multitude of electric input signals representing sound in the environment of the hearing aid system; a beamformer unit for spatially filtering the electric input signals; antenna and transceiver circuitry allowing a wireless communication link between the first and second hearing aid systems to be established to allow the exchange of said audio data between them; and a control unit for controlling the beamformer unit and the antenna and transceiver circuitry; wherein the control unit—at least in a dedicated partner mode of operation of the hearing aid system—is arranged to configure the beamformer unit to retrieve an own voice signal of the person wearing the hearing aid system from the electric input signals, and to transmit the own voice signal to the other hearing aid system via the antenna and transceiver circuitry. This has the advantage of eliminating the need for a partner microphone while still providing a boost in SNR of a target speaker. The invention may e.g. be used for the hearing aids, head sets, active ear protection devices or combinations thereof.
MEMS microphone and method for forming the same
A Micro-Electro-Mechanical System (MEMS) microphone and a method for forming the same are provided. The method includes: providing a first substrate including a first surface and a second surface opposite to each other; providing a second substrate including a third surface and a fourth surface opposite to each other; bonding the first surface of the first substrate and the third surface of the second substrate to each other; removing a second base of the second substrate to form a fifth surface opposite to the third surface of the second substrate; forming a cavity between the first substrate and the sensitive region of the second substrate; and forming a first conductive plug from the side of the fifth surface of the second substrate, with the first conductive plug passing through to at least one of the conductive layers.
Class-D amplifier with pulse density modulation output feedback for higher performance acoustic echo canceller
A system for processing audio data comprising an amplifier configured to receive an audio signal and to perform nonlinear processing on the audio signal. An encoder coupled to the amplifier, the encoder configured to receive the nonlinearly processed audio signal and to encode the nonlinearly processed audio signal into a data transmission format. A transmitter configured to receive and transmit the encoded nonlinearly processed audio signal. A receiver configured to receive the transmitted encoded nonlinearly processed audio signal and to decode the encoded nonlinearly processed audio signal. A digital voice processor configured to receive the nonlinearly processed audio signal and to use the nonlinearly processed audio signal for echo estimation and to subsequently subtract the estimated echo signal from a microphone signal.
Controlling ambient sound volume
An earpiece includes a feed-forward microphone coupled to the environment outside the headphones, a feedback microphone coupled to an ear canal of a user when the earpiece is in use, a speaker coupled to the ear canal of the user when the earpiece is in use, a digital signal processor implementing feed-forward and feedback noise compensation filters between the respective microphones and the speaker, and a memory storing an ordered sequence of sets of filters for use by the digital signal processor. Each of the sets of filters includes a feed-forward filter that provides a different frequency-dependent amount of sound pass-through or cancellation, which in combination with residual ambient sound reaching the ear results in a total insertion gain at the ear of a user.
Earphone device having concentrating tube
An earphone device having a concentrating tube includes an annular magnet, a first yoke, a second yoke, a concentrating tube, a speaker assembly, and a passive diaphragm. The first and second yokes are respectively connected to first and second magnetic pole surfaces of the annular magnet. The concentrating tube is received in a central through hole of the annular magnet. The concentrating tube includes first and second open ends. The speaker assembly includes a voice coil and an active diaphragm. The passive and active diaphragms are at two opposite ends of the concentrating tube. The active and passive diaphragms are respectively close to the first and second open ends. A gas flow generated by the active diaphragm is gathered by the concentrating tube and pushes the passive diaphragm. A gas flow generated by the passive diaphragm returns through the concentrating tube to push the active diaphragm and transmits acoustic waves.
Wireless pair of earbuds
A wireless pair of earbuds is provided, wherein each earbud comprises an earbud body including a tip configured to be inserted in an ear canal of a user, the earbud body housing electronic circuitry including a controller for controlling components in the earbud, and an ear hook coupled with the earbud body and configured to fit around a root of an ear pinna of the user, the ear hook housing an antenna.
Reproduction of ambient environmental sound for acoustic transparency of ear canal device system and method
An ear piece for use by an individual having an external auditory canal includes an earpiece housing configured for placement within the external auditory canal of the individual, a processor disposed within the ear piece housing, at least one microphone disposed within the earpiece housing wherein the at least one earpiece is positioned to detect ambient environmental sound, and at least one speaker disposed within the earpiece housing. The ear piece is configured to detect ambient environmental sound proximate the external auditory canal of the individual using the at least one microphone and reproduce the ambient environmental sound at the at least one speaker within the earpiece housing. The processor is further configured to modify the ambient environmental sound based on shape of the external auditory canal such that audio perception of the ambient environmental sound is as if the ear piece was not present.
IPBX control interface for distributed networks
Apparatus and methods concerning routing of calls in an IPBX are disclosed. As an example, one apparatus includes an IPBX server configured to route VoIP calls for a plurality of end-users having respective VoIP-enabled devices communicatively coupled to the IPBX via a network. A user-activity detection circuit is communicatively coupled to the IPBX server. The user-activity detection circuit is configured to receive activity data indicating activity of end-users in a virtual office environment and receive event messages indicating statuses of pending calls in the IPBX server. The user-activity detection circuit determines user-activity statuses of the end-users based on received activity data and event messages. A computing server is communicatively coupled to the user-activity detection circuit and is configured to provide a set of services for one or more of the plurality of users as a function of the determined user-activity statuses of the end-user.
Video processing system and method
The video processing system provides for automatic selection of video sequences showing goals in a video stream from cameras directed at a playing field. Classification is applied to image content from different foreground positions in an image. The set of classes comprising a first and second class corresponding players of different teams. Medians or averages of the image positions of the local image content assigned to the first and second class are determined. A condition is tested whether the results are on mutually opposite sides of a reference position and a distance between collected positions or distances between the reference position and the first and second collected positions exceed a threshold value. When the test shows that the condition is met, a preceding video sequence is selected, for example for display.
Providing interactivity options for television broadcast content
Methods and system for providing interactive media for broadcast content includes receiving navigation input to a first channel that presents content of the television broadcast. Identity of the content is determined by generating an audio fingerprint using an audio signal of the content. Types of interactive media available during the presentation of the content from the first channel and a predetermined input for accessing the graphical notification are identified and used to generate a graphical notification. Access to interactive media presented within the graphical notification is enabled during rendering of the graphical notification and at any time during rendering of the content from the first channel, upon providing the predefined input. When the predefined input is detected, the types of interactive media available for the content are rendered, and content for the select one of the interactive media is presented, during presentation of the content from the first channel.
Method and apparatus for directed advertisement
Aspects of the subject disclosure may include, for example, receiving registration information indicating a plurality of registered communication devices in proximity to a set-top box, the plurality of registered communication devices being registered according to a communication exchange between the set-top box and each of the plurality of registered communication devices, identifying a group of users associated with the plurality of registered communication devices, and determining characteristics for the group of users according to the identifying of the group of users, correlating the characteristics for the group of users, selecting a directed advertisement according to the correlating of the characteristics, and providing the directed advertisement to the set-top box for presentation. Other embodiments are disclosed.
Media content search results ranked by popularity
Media content search results ranked by popularity is described. In embodiment(s), a search request for television media content can be initiated by a viewer, and television media content that is relevant to the search request can be identified. The relevant television media content can then be ranked based on a popularity rating and the relevant television media content can be displayed in an ordered list that is ordered by popularity rankings.
Method for transmitting and receiving the broadcast signals, and broadcast reception device using said method
Disclosed are a method and device for transmitting and receiving broadcast signals. The disclosed reception method comprises a step for extracting second program table information which indicates the association properties between a plurality of programs, the programs being obtained by using a broadcast stream which comprises at least one program, program table information which indicates the broadcast stream, and at least one broadcast service, from a received broadcast signal. The method further comprises a step for parsing the broadcast stream by using the extracted program table information; and a step for acquiring information about the groups to which the plurality of programs belong by using the extracted second program table information.
Meeting system that interconnects group and personal devices across a network
Systems and methods are provided for hosting collaboration between multiple clients. The system includes a network interface able to communicate with clients, and a control unit. The control unit is able to receive a screen capture that represents visual content at a display of a client, to identify multiple clients for receiving the screen capture, and to transmit the screen capture to the multiple clients for presentation at displays of the multiple clients. The control unit is further able to receive instructions in parallel from the multiple clients representing marks made upon the screen capture, and to transmit the instructions in parallel to the multiple clients to apply the marks onto the screen capture as presented at the displays of the multiple clients.
Systems and methods for allowing access to a different version of the media asset
Systems and methods for allowing a user to access a different version of a blocked media asset. These systems and methods allow a first user to request access to the blocked media asset from a second user who has authority to approve access to the blocked media asset. These systems and methods determine different versions of the media asset available from different sources. These systems and methods notify the second user that the first user has requested access to the blocked media asset and include, in the notification, an option to unblock any one of the different versions of the media asset available from the different sources. This allows the second user to determine if there is a version of the media asset that the second user deems suitable for unblocking.
User terminal and control method thereof
A user terminal and a control method thereof, in which contents may be shared with a simple input are provided. The user terminal includes a display configured to display a screen of a content, a communicator configured to communicate with another device, a user input configured to receive a user's input, and a controller configured to determine one transfer mode among a plurality of transfer modes for transferring contents based on information about the contents being executed in one of the user terminal and the other device, and controls the executing content that is transferred between the user terminal and the other device in the determined one transfer mode.
Determining alternatives when a recording conflict occurs
A method includes receiving a recording request from a user. The method also includes determining a recording conflict based on the recording request, wherein the recording conflict includes a plurality of programs. The method additionally includes generating a plurality of options that resolve the recording conflict, wherein the plurality of options are based on determining available re-broadcasts of the plurality of programs. The method further includes presenting the plurality of options to the user.
Receiving a broadcast stream
An apparatus and method for receiving a broadcast stream is provided. The apparatus is configured to receive key information and additional information through the broadcast stream, select one of a plurality of predetermined functions based on the additional information, and perform the selected function in response to a control signal identified by the key information. The additional information may include link information such as a URL or telephone number, and the function may be selected based on a type of the link information. In some embodiments, the link information may be extracted from audio-visual data of a selected programme, using optical character recognition. The apparatus may connect to a secondary device to transmit information to the secondary device, and may receive information relating to the selected programme from the secondary device.
Video display device, terminal device, and method thereof
A terminal device acquires a part of an audio-visual content regenerated by a video display apparatus. The terminal device acquires contents information of the audio-visual content based on the part of the audio-visual content. The terminal device acquires the available enhanced service based on the contents information and regenerates the available enhanced service.
Information processing system, server device, and control program
A server apparatus includes a storage, an acquisition unit, and a controller. The storage stores association information that associates access information on the program processing apparatus corresponding to user identification information with the user identification information. The acquisition unit acquires the user identification information and program-specifying information that specifies a broadcast program. The controller specifies the access information on the association information from the user identification information. Then, the controller causes the program processing apparatus to perform processing regarding the broadcast program specified by the program-specifying information acquired by the acquisition unit by using the access information.
Database table storage techniques for video delivery service authorization
Particular embodiments generate a database table that keeps track of authorization package combinations for videos being offered by a video delivery service. The table may allow the video delivery service to keep track of how much content is available for a specific authorization package combination that a user might have access to In one embodiment, the video delivery service does not pre-generate every single possible authorization package combination on a per-show basis. Rather, only a subset of the authorization package combinations is generated for each show. Then, the video delivery service uses a query to the database table that can calculate which content a user is authorized to access from the subset of authorization package combinations that were generated.
Manifest re-assembler for a streaming video channel
A device is configured to receive a playlist identifying content assets to be played on a streaming video channel. Each of the content assets may include segments. The device may add segment addresses associated with a content asset into a queue. The segment addresses may identify memory locations at which the segments included in the content asset are stored. However, the segments themselves may not be stored by the device or added to the queue. The device may generate a batch of segment addresses from the segment addresses in the queue. The device may publish a channel manifest for the streaming video channel including the batch of segment addresses. The content assets may be accessible via the streaming video channel through a single network address. The device may periodically update the channel manifest based on the segment addresses in the queue.
Computer-vision based automatic inserting and playing method for advertisement
A computer-vision based automatic inserting and playing method for advertisement analyzes a video for obtaining multiple shots of the video, and obtaining semantic information related to targets appearing in each shot and low-level information related to vision of each shot. Next, the method matches the semantic information and the low-level information of each two adjacent shots with other semantic information and other low-level information of candidate advertisements, so as to determine one or more insertion time points of the video, and one or more inserting advertisements respectively related to each of the insertion time points. The matching of the semantic information ensures the inserting advertisement and a front shot and a rear shot of the insertion time point are all related with each other, and the matching of the low-level information enhances visual fluency in playing and switching among the front shot, the inserting advertisement and the rear shot.
Device and method for processing a stream of video data
A device for processing a stream of video data which comprises a sequence of frames comprises an interface configured to receive the stream of video data. A processing device is configured to create a three-dimensional environment from a frame of the sequence of frames when a freeze condition is detected. The processing device is configured to generate a series of frames from the three-dimensional environment. The series of frames represents the three-dimensional environment from a plurality of points of view. The processing device is configured to insert the generated series of frames into the sequence of frames to generate a modified sequence of frames to conceal a freeze.
Low complex deblocking filter decisions
The present disclosure relates to deblocking filtering, which may be advantageously applied for block-wise encoding and decoding of images or video signals. In particular, the present disclosure relates to an improved memory management in an automated decision on whether to apply or skip deblocking filtering for a block and to selection of the deblocking filter. The decision is performed on the basis of a segmentation of blocks in such a manner that memory usage is optimized. Preferably, the selection of appropriate deblocking filters is improved so as to reduce computational expense.
Method for encoding and decoding image block, encoder and decoder
A method for encoding and decoding an image block, an encoder, and a decoder are provided. The method for encoding an image block comprises: determining a local dynamic range of the block; adaptively precision-extending pixel values of the block based on the local dynamic range of the block; and encoding the block with an adaptively extended precision. The method for decoding an image block comprises: determining a minimum pixel value of the block and an indicating value for indicating a precision extension factor according to precision extension information; decoding the block according to the indicating value; and de-extending precision of the decoded block based on the minimum pixel value of the block and the precision extension factor. The precision of the intermediate calculations may be improved without increasing an original intermediate bit depth used in intermediate calculations.
Disparity vector and/or advanced residual prediction for video coding
A device for processing three-dimensional (3D) video data may determine, based on direct dependent layers signaled in a video parameter set, that the current texture layer of the video data is dependent on a depth layer of the video data; and process the current texture layer using the depth layer.
Temporal filtering based on reduced-resolution motion detection
A method for temporal filtering based on reduced-resolution motion detection is disclosed. Step (A) may down-sample a target picture in a sequence of pictures to generate a reduced-resolution target picture. Step (B) may down-sample a reference picture in the sequence of pictures to generate a reduced-resolution reference picture. Step (C) may compute a plurality of reduced-resolution motion scores by motion detection between the reduced-resolution reference picture and the reduced-resolution target picture. Step (D) may temporal filter the target picture with the reference picture based on the reduced-resolution motion scores to generate a filtered picture. At least one of (i) the reduced-resolution motion scores and (ii) the generation of the filtered picture is controlled by one or more gain settings in a circuit.
Advanced residual prediction in scalable and multi-view video coding
In an example, a method of coding video data includes determining a location of a temporal reference block indicated by a temporal motion vector to a current block of video data, where the current block and the temporal reference block are located in a first layer of video data. The method also includes interpolating, with a first type of interpolation, a location of a disparity reference block indicated by a disparity vector of the current block, where the disparity reference block is located in a second, different layer, and where the first type of interpolation comprises a bi-linear filter. The method also includes determining a temporal-disparity reference block of the disparity reference block indicated by a combination of the temporal motion vector and the disparity vector, and coding the current block based on the temporal reference block, the disparity reference block, and the temporal-disparity reference block.
Methods and systems for chroma residual data prediction
Several methods and systems for chroma residual data prediction for encoding blocks corresponding to video data are disclosed. In an embodiment, at least one coefficient correlating reconstructed luma residual samples and corresponding reconstructed chroma residual samples is computed for one or more encoded blocks of video data. Predicted chroma residual samples are generated for encoding a block of video data based on corresponding reconstructed luma residual samples and the at least one coefficient.
Quantization for different color sampling schemes
A video coding or decoding method operable to generate blocks of quantized spatial frequency data by quantizing the video data according to a selected quantization step size and a matrix of data modifying the quantization step size for use at different respective block positions within an ordered block of samples, the method being operable with respect to at least two different chrominance subsampling formats, and includes for at least one of the chrominance subsampling formats, defining one or more quantization matrices as one or more predetermined modifications with respect to one or more reference quantization matrices defined for a reference one of the chrominance subsampling formats.
Method and apparatus for encoding an image
A method for processing an image, the method comprising retrieving an image, encoding the image as a string of components, deriving an exponent for each component, deriving mantissas wherein at least an approximation of each component can be derived from the exponents and mantissas, and wherein each exponent indicates the number of bits in its accompanying mantissa, compressing at least the exponents, and storing the exponents and the mantissas in a memory. There is also provided a apparatus for processing an image.
Three-dimensional lookup table based color gamut scalability in multi-layer video coding
Techniques are described for 3D lookup table based color gamut scalability in multi-layer video coding. A lower layer of video data may include color data in a first color gamut and a higher layer of the video data may include color data in a second color gamut. To generate inter-layer reference pictures, a video coder performs color prediction to convert the color data of a reference picture in the first color gamut to the second color gamut. The video coder may perform color prediction using a 3D lookup table. According to the techniques, the video coder generates at least one 3D lookup table having a size that is different for a luma component than for a first chroma component and a second chroma component. In this way, the total size of the table may be reduced while maintaining good coding performance.
Sub-PU motion prediction for texture and depth coding
In accordance with one or more techniques of this disclosure, a video coder may divide a current prediction unit (PU) into a plurality of sub-PUs. Each of the sub-PUs may have a size smaller than a size of the PU. Furthermore, the current PU may be in a depth view of the multi-view video data. For each respective sub-PU from the plurality of sub-PUs, the video coder may identify a reference block for the respective sub-PU. The reference block may be co-located with the respective sub-PU in a texture view corresponding to the depth view. The video coder may use motion parameters of the identified reference block for the respective sub-PU to determine motion parameters for the respective sub-PU.
Method for performing depth information management in an electronic device, and associated apparatus and associated computer program product
A method for performing depth information management in an electronic device, an associated apparatus, and an associated computer program product are provided, where the method includes the steps of: modifying a two dimensional (2D) image, and selectively modifying a depth map of the 2D image based on modification of the 2D image before, when, or after the 2D image is modified, wherein the 2D image is retrieved from a storage module, wherein, for example, the storage module may be positioned within or outside the electronic device; and saving the modified depth map into an image file of the modified 2D image. For example, the modified depth map and the modified 2D image may correspond to each other.
Display control device and display control method
There is provided a display control device including a display control unit configured to perform control to display a second image based on image information on a surface of a projection device that projects a first image based on the image information onto a predetermined surface. The first image and the second image correspond to different ranges of a single image that is reproduced from the image information.
Vision system for vehicle
A vision system for a vehicle includes a forward viewing camera. Responsive at least in part to processing by an image processor of image data captured by the forward viewing camera, at least one road characteristic of a road along which the vehicle is traveling is detected. Responsive at least in part to processing by the image processor of image data captured by the forward viewing camera, other vehicles exterior the equipped vehicle are detected. Responsive at least in part to processing by the image processor of image data captured by the forward viewing camera, road curvature of the road along which the vehicle is traveling is determined. Data derived from image data captured by the forward viewing camera may be wirelessly communicated from the vehicle to a remote data receiver located remote from the vehicle.
Method for configuration of video stream output from a digital video camera
A method for configuration of video stream output from a digital video camera. A digital video camera connected to a communication network, using a first video stream of a scene is produced; a second video stream of the scene is produced; at a client connected to the communication network, the first and second video streams are received and at least one video stream parameter of the first set of video stream parameters is caused to be adjusted such that a bit rate of the first video stream is affected; at the digital video camera, the producing of the first video stream is continuously adjusted based on the caused adjustment of the at least one video stream parameter of the first set of video stream parameters; and on a display of the client, a portion of each frame of the first video stream are continuously displayed.
Moving information analyzing system, camera, and moving information analyzing method
The present invention relates to a moving information analyzing system in which a camera and a server are connected to each other. The camera includes an imaging section that captures an image of a predetermined imaging region, a background image generating section that repeatedly generates a background image of a captured image of the imaging region at predetermined timings, a moving information analyzing section that extracts moving information regarding a staying position or a passing position in the imaging region of a moving object included in the captured image, and a transmitter that transmits the background image generated by the background image generating section and the moving information of the moving object extracted by the moving information analyzing section to the server at a predetermined transmission cycle. The server includes an image generating section that generates a moving information analysis image in which the moving information of the moving object is superimposed on the background image of the captured image, and a display control section that displays the moving information analysis image generated by the image generating section on a display unit.
Surveillance camera management device, surveillance camera management method, and program
The surveillance areas of cameras registered on a map having a surveillance region set thereon are projected onto the map. The shortest paths between the cameras registered on the map are searched for. Links between the cameras are determined based on the surveillance areas of the cameras projected on the map and the shortest paths between the cameras detected on the map. Unlike a conventional technique by which link information is manually acquired, this technique does not require a surveillance object to walk around so as to be actually captured by all the cameras, and can be applied even in a case where there is congestion in the surveillance region. Accordingly, the load on the user can be reduced.
Conducting an audio or video conference call
An A/V conference device located in each of a plurality of A/V conference call spaces operates to receive, process and transmit audio and video information over a network to a far-end location during a conference call, and an A/V conference service operates in the network to setup, support, and terminate conference calls between the A/V conference devices. The A/V conference call device has conference call control functionality that detects the presence of one or more individuals in the conference call space, and which prompts the individuals for call setup information that is sent to the A/V conference service operating in the network. The individual can move to be present in any one of a plurality of available conference spaces and initiate a conference call without the need to provide scheduling information to the A/V conference service prior to or after entering the space.
Priority of uplink streams in video switching
A method relating to a video conference connecting a first terminal to a plurality of second terminals via a switching server is disclosed. The switching server receives a plurality of uplink video streams from the first terminal via a single transport path, and the switching server sends a downlink video stream based on the uplink video streams to each of the second terminals. The method involves the steps of collecting information relating to the use of each of the second terminals and determining an order between the uplink video streams based on the information. The method further involves the steps of generating instructions for the first terminal to adjust the plurality of uplink video streams based on the order, and informing the first terminal of the instructions. A switching server and a first terminal involved in the method are also disclosed.
Information processing apparatus and information processing method that notify when a display unit is determined to be able to display an image based on a display image with brightness of input image data
An information processing apparatus acquires input brightness information of input image data. A setting unit sets, based on a user's operation, a display range for displaying within a range of brightness possibly taken by the input image data, and reference brightness that is an upper limit of brightness of a display unit. A generation unit generates display image data by converting gradation characteristics of the input image data based on the display. The brightness of the display unit is controlled based on the reference brightness. A notification unit performs first notification processing when the display unit is able to display an image based on the display image data with brightness of the input image data, and second notification processing when the display unit is not able to so display the image, based on the display range, the reference brightness, and the input brightness information.
Compact human presence detector
A multimodal and highly compact human presence detector that includes, on a same silicon chip made using CMOS technology, a first array of pixels, made sensitive to far-infrared radiation by depositing a pyroelectric layer, converting the received far-infrared radiation into electrical charges, juxtaposed with at least one second array of pixels sensitive to visible light, converting the received visible light into electrical charges, and a circuit for reading the charges generated in each of the arrays by the visible light or the far-infrared radiation, the detector further including, on top of the silicon chip, an optical element for focusing the far-infrared radiation on the first array, and an optical element for focusing the visible light on the second array.
Radiation imaging apparatus and radiation imaging system
A radiation imaging apparatus includes a radiation detection unit including a plurality of sensors which detect radiation, and a monitoring unit which monitors irradiation of radiation based on signals detected by the plurality of sensors. The monitoring unit determines a plurality of effective sensor candidates from the plurality of sensors, and determines effective sensor(s) from effective sensor candidates excluding certain effective sensor candidates of the plurality of effective sensor candidates, the certain effective sensor candidates being an effective sensor candidate which has detected a signal having a maximum value and an effective sensor candidate which has detected a signal having a minimum value. The monitoring unit monitors irradiation of radiation based on signal(s) detected by the effective sensor(s).
Data display apparatus which controls display of a plurality of data, image display apparatus which individually displays a series of images, data display method, image display method, and storage medium
In the present invention, a control section distinctly displays, as indexes for indicating that data (image) switching can be performed from a starting point that is the arrayed position of data selected as a display target from among a plurality of data arrayed in virtual and multiple dimensions based on plural types of imaging parameters, information regarding the array status of the plurality of data on a display section, in association with plural directions in which data switching can be performed. As a result of this configuration, when instructing to perform data switching in a direction arbitrarily selected from among a plurality of data switching directions, the user can instruct to perform data switching while visually checking information regarding the array status of data for each data switching direction. That is, by this configuration, data in each data switching direction becomes more recognizable visually.
Image stabilization related methods and apparatus
Methods and apparatus for processing images captured by a camera device including multiple optical chains, e.g., camera modules, are described. Three, 4, 5 or more optical chains maybe used. Different optical chains capture different images due to different perspectives. Multiple images, e.g., corresponding to different perspectives, are captured during a time period and are combined to generate a composite image. In some embodiments one of the captured images or a synthesized image is used as a reference image during composite image generation. The image used as the reference image is selected to keep the perspective of sequentially generated composite images consistent despite unintentional came movement and/or in accordance with an expected path of travel. Thus, which camera module provides the reference image may vary over time taking into consideration unintended camera movement. Composite image generation may be performed external to the camera device or in the camera device.
Camera parameter calculation device, navigation system and camera parameter calculation method
A device for calculating one or more camera parameters of a camera mounted on a traveling vehicle includes a location information acquisition unit, a road width information acquisition unit, a scenery image acquisition unit, and a camera parameter calibration unit. The device calculates a height of a mount position of the camera and a direction of the camera. The device also converts a scenery image captured by the camera of a scenery including the road on which the traveling vehicle moves into an image that is displayed for navigation.
Image signal processor and devices including the same
An image signal processor includes a memory configured to store a table, the table including a plurality of point spread functions (PSFs), a PSF selection circuit configured to output at least one of the plurality of PSFs stored in the table based on selection information, a disparity extractor configured to extract a disparity value from image data corresponding to pixel signals output from at least one pixel of a plurality of pixels included in an image sensor, and a processing circuit configured to generate pixel location information for the at least one pixel. Each of the pixels of the plurality of pixels includes a plurality of photoelectric conversion elements. The selection information includes the disparity value and the pixel location information.
Imaging device with depth of field adjustment
First image information whose depth of field includes a subject in a focus position set by a control section before photo shooting and second image information captured in a position focus different from that of the first image information are included. The focus position of the second image information is determined on the basis of the focus position of the first image information. The first image information is stored together with an image with an extended depth of field. This makes it possible to provide an imaging device which, when obtaining an extended depth of field from a plurality of images of different focus positions, can reduce failures in photo shooting due to a movement of a subject or camera shake.
Peer to peer audio video device communication
A system, method and computer program product for communicating between a primary audio video device and other audio video devices comprising: detecting orientation and position of the primary audio video device; detecting a distance between the primary audio video device and a primary subject in focus on the primary audio video device; locating other networkable audio video devices for communication; receiving subject data for a real time video of a subject from one or more of the located networkable audio video devices; determining from subject data which networkable audio video devices are near the primary subject; determining one or more primary subject audio video devices for use in recording audio for a video; and synchronizing determined one or more primary subject audio video devices for recording audio when one or more of the audio video devices is recording video of the primary subject.
Periodic motion observation system
A periodic motion observation system specifies, with high accuracy, the locus, speed, and a place in which strain, etc., that occurs in the periodic motion of an observation target. A flash light is emitted every prescribed period from a light source. The periodic motion at a prescribed observation point of an observation target is image-captured by an image-capturing camera. The image pertaining to the periodic motion at the prescribed observation point of the observation target is analyzed by an image analysis device. This image analysis unit extracts, on the basis of the image pertaining to the periodic motion at the prescribed observation point of the observation target, the coordinates of the prescribed observation point at a time when the prescribed observation point of the observation target is irradiated by the light source, and outputs each of the coordinates in tabular form or graphic form.
Image sensor and image capture device
An image sensor includes a sensing layer, a transparent plate, and a first guided-mode resonance structure. The sensing layer includes sensing units configured to sense a light beam. The transparent plate is located above the sensing layer. The first guided-mode resonance structure is disposed on a first area of the transparent plate, and blocks a first waveband of the light beam from passing through.
Single-axis inspection scope with spherical camera and method for internal inspection of power generation machinery
Internal components of power generation machinery, such as gas turbine engines, are inspected with a spherical optical camera inspection system mounted on a compact diameter, single-axis inspection scope that is capable of insertion within an inspection port or other accessible insertion site. The inspection scope includes nested, non-rotatable telescoping tubes, which define an extension axis. Circumscribing, telescoping tubes have anti-rotation collars, which are in sliding engagement with a mating axial groove on an outer circumferential surface of a circumscribed tube. The camera is advanced and/or retracted along a scope extension axis by nested, drive tubes, which incorporate at least one external drive screw on a circumscribed drive tube and corresponding female threads formed in a circumscribing drive tube. The spherical camera has a 360-degree field of view, and captures images without rotation about the scope extension axis.
Method and apparatus to determine added graphics layers in a video image signal
An original image layer is mixed with one or more graphics layers to form a composite video signal, such as in a vision mixer. Also, the same graphics layers are mixed identically into another, known background image layer to give a second composite video signal. The currently applied added graphics layers are determined, without directly accessing the added graphics layers themselves, using only the first and second composite video signals, the original image layer, and the known background image, such as in a graphics layer detection device. A triangulation matting algorithm may be used in one example.
In/out-of-gamut determination system for acquiring cross-section of color gamut of image forming apparatus taken on specific plane
A color gamut cross-section acquiring method for acquiring a cross-section of a color gamut of an image forming apparatus taken on a specific plane includes: acquiring color gamut boundary line segments; acquiring intersection points between the color gamut boundary line segments and the specific plane; acquiring a shortest possible route passing through each of the intersection points exactly once; acquiring each of line segments making up the route as a provisional cross-section boundary line segment; acquiring a set of verification line segments by connecting intersection points between the color gamut boundary line segments and a plane intersecting with the provisional cross-section boundary line segment at a point other than the endpoints of the provisional cross-section boundary line segment; and acquiring the provisional cross-section boundary line segment as a cross-section boundary line segment if the provisional cross-section boundary line segment intersects with the set of verification line segments.
Color matching across multiple sensors in an optical system
Matching color information in an optical system can include splitting an image forming beam into a bright intensity beam and a dark intensity beam, detecting, using multiple sensors, a color value for a light component from the bright intensity beam and the dark intensity beam, determining color values for the remaining light components associated with the bright intensity beam and the dark intensity beam, and transforming the color values associated with the dark intensity beam to calibrate the color values of the dark intensity beam against the color values of the light intensity beam, the color values of the light intensity beam including color inaccuracies.
System, method and computer program product for multi-tenant facsimile server
In embodiments disclosed herein disclose methods and systems for providing a multitenant facsimile server. The computer instructions may be executable to maintain a set of entity information, wherein the entity information defines a plurality of tenants, and maintain a database configured to store transmitted and received fax documents corresponding to a plurality of tenants. The computer instructions may be further executable to receive a facsimile document at the fax server, wherein the facsimile document comprises one of a document to be transmitted or a received fax. The computer instructions may be further executable to identify a tenant associated with the document based on an identifier. Further, the computer instructions may be executable to store the document in the database, wherein the document is associated with the tenant in the database.
Processing apparatus that can be transitioned into an enabled state
Provided is a processing apparatus that receives an operation and executes a process according to the operation, the processing apparatus including a housing that is provided with an opening facing a forward direction, a camera that causes a lens to be looked from the opening to generate a captured image, a filter that extends over a front surface of the lens and is placed with interposing a reflection reducing material between the filter and the housing, and a control unit that analyzes a human within an angle of a view of image capturing based on the captured image generated by the camera, using analysis results as one basis determines whether to cause the processing apparatus to transition to an enabled state, and causes the processing apparatus to transition to an enabled state when the determination of the transition to an enabled state is made.
Image forming apparatus and method for controlling an image forming apparatus
An image forming apparatus includes a detection section that detects a distance between the image forming apparatus and a portable terminal, and a controller. The controller determines whether the distance meets a predetermined condition, and controls operations relating to an image forming job if the detected distance meets the predetermined condition.
Three-dimensional object storage, customization, and distribution system
A method for routing object data that defines a 3-dimensional (3D) object to a 3D printer includes receiving the object data at a server and determining, by the server, object attributes associated with the object defined by the object data. The server searches a database that stores 3D printer attributes for one or more 3D printers capable of printing objects that possess the determined object attributes. If one or more capable printers are identified, the server communicates a list that identifies the one or more capable printers to a user.
Image forming apparatus, information setting system, and information setting method for controlling setting values by requesting setting information through a network
In an image forming apparatus, setting information is stored in a storage part for a function which the image forming apparatus operates based on the setting information. An acquisition request of common setting information is sent to an information processing apparatus including the common setting information in common with multiple of the image forming apparatuses connected through a network. The common setting information is received from the information processing apparatus. The common setting information received by the receiving part is set in the setting information stored in the storage part.
Multi-function device for executing plurality of functions related to plural types of services
A multi-function device may acquire specific use information corresponding to a specific user who uses the multi-function device, request a service providing server to provide a specific service in a case where the specific service among plural types of services is selected by the specific user, and acquire screen information from a screen providing server so as to display a screen according to the screen information. The multi-function device may display a first screen for receiving the specific service from the service providing server in a case where the specific use information indicates that the specific user is allowed to use a specific function related to the specific service, and display a second screen indicating that it is not capable of receiving the specific service in a case where the specific use information indicates that the specific user is not allowed to use the specific function.
An image scanner includes an image sensor with a plurality of scanning elements arrayed in a main scanning direction, a carriage carrying thereon the image sensor, a pair of pulleys, a belt looped around the pulleys, a connector, and a restricting member. The connector protrudes from the carriage and is connected to the belt which is inserted in an entry port of the connector. When the belt is driven to rotate, the connector moves with the belt and moves the carriage in a sub-scanning direction. The restricting member contacts the belt when, in a state where the carriage is at a standby position, the belt shifts in a disengaging direction in which the belt tends to disengage from the connector through the entry port.
VoIP voice and messaging application
A software application enables a mobile device to make and receive voice calls, video calls, and text messages over a data network using VoIP. The application may run in the background and intercept outgoing and incoming calls. When the outgoing or incoming call is to/from another user of the application, the application may launch an appropriate screen and make/receive the call or text via Voice-over-Internet Protocol (VoIP). Otherwise, the call or text functionality may be performed by native functionality of the mobile device via a GSM network.
Handling conferences using highly-distributed agents
Systems, methods, and non-transitory computer-readable storage media for directing conferences to on-premises media agents and cloud-based media agents. A centralized controller and a plurality of cloud-based media agents are disposed within a cloud or other remote or virtual network, and a plurality of on-premises media agents are provided on-premises. The centralized controller manages the directing and forwarding of conferences and is in communication with the cloud-based media agents and the on-premises media agents.
Method of call forwarding between devices
An electronic device and method are disclosed, including a first communication module configured to perform a cellular communication, a second communication module configured to perform a communication to connect the electronic device to an external electronic device, and at least one processor electrically connected to the first and second communication modules, executing the method, which includes activating the first communication module in response to detecting a preset condition, and transmitting a signal requesting call forwarding via the first communication module.
Customized communication routing
Devices, systems, and methods for customized communication routing based on user information. When a presence of a first user is detected on a pre-designated webpage of a plurality of webpages of a website, account information of the first user is retrieved in response to the detected presence and the pre-designated webpage is dynamically modified to present a communication routing option based on the account information of the first user. The communication routing option presented to the first user is different from a communication routing option presented to a second user having different account information.
Systems and methods to determine quality of services provided over real-time communication connections
A computing apparatus configured in the communication system to store data about advisers, including availability status of the advisers for real time communications with customers, ratings of the advisers by prior customers, compensate rates of the advisers, probability of being connected within a period of time for real time communication with customers, etc. The computing apparatus presents the advisers to customers based on the stored information and provide real time communication connections in response to selections of the presented advisers. Based on monitoring customer interaction with the system, the computing apparatus is configured to detect dissatisfactions, determine authenticity of the dissatisfactions based on user history and usage patterns of the system, and automatically provide a refund to the user without a refund request from the user and/or an explicitly user confirmation of the detected dissatisfaction.
Using an interactive voice response apparatus
A method of using an interactive voice response system, the method including: from a trunk interface, receiving an inbound communication from a caller, the inbound communication received at the interactive voice response apparatus; at the interactive voice response apparatus, receiving a number associated with the inbound communication, the number indicative of a location of the caller; playing, as at least one interactive voice response by the interactive voice response apparatus, a recorded message to the caller; querying a memory containing call referral data for each of a plurality of services, using the number, to obtain a phone number for one of the services associated with the location of the caller, the querying carried out by the interactive voice response apparatus; and connecting, by the interactive voice response apparatus, the inbound communication to an outbound communication line to connect the caller with the phone number for the one of the services associated with the location of the caller.
Providing sender identification information
An apparatus for providing sender identification information of the communication event on a display is described. In an embodiment the apparatus receives a communication event, for example, a call or a message. The mobile apparatus is caused to output a temporary indication of the communication event and the sender identification information relating to the communication event is not shown on the display. When a user of the mobile apparatus is detected with at least one sensor, the display is arranged to display the sender identification information on the display replacing the temporary indication in response to detecting the user with the at least one sensor.
Anti-distracted driver system
A system to control turning on an engine of a vehicle includes a relay and a detect circuit. The detect circuit is configured to detect a client device and, upon detection of a client device, to assert a signal indicating that a client device has been detected. Responsive to detection of the client device, the detect circuit generates a signal to cause the relay to close upon activation of a starter control in the vehicle to thereby cause current to flow to a starter motor in the vehicle.
Artificial intelligence audio apparatus and operation method thereof
An artificial intelligence audio apparatus includes a sensing part which is configured to sense a current location and a temperature and/or a humidity thereof and sense whether a human exists in the current location; and a controller which is configured to receive weather information of the current location from an external server using location information of the current location, determine whether a predetermined greeting should be output when the human exists in the current location, and in response to determining that the predetermined greeting should be output, extract at least one of a greeting voice and a greeting text, from greeting data stored in a storage, which corresponds with a current time, at least one of the temperature and the humidity, and the weather information of the current location, and output the extracted at least one of the greeting voice and the greeting text.
Communication integration via short range wireless connectivity relay
A system and method for providing wireless communication between a handheld mobile device and an embedded vehicle system of a motor vehicle. The system includes a communication module that utilizes at least two different short range wireless communication technologies to facilitate communication and/or pairing of an occupant's smartphone or other mobile device with an embedded vehicle system such as a vehicle infotainment system. This includes the use of a very short range communication technology, such as Near Field Communication (NFC), to communicate between the mobile device and an embedded vehicle system that is located outside of the operational range of the NFC or other very short range communication technology used by the mobile device.
Transmitting apparatus and signal processing method thereof
A transmitting apparatus, a receiving apparatus, and a method of signal processing are provided. The transmitting apparatus includes at least one processor configured to implement: a packet generator which generates a packet including a header and a payload, based on an input stream; and a signal processor which signal-processes the generated packet. The header includes a base header, and the base header includes various fields indicating at least one of a packet type, and a value indicating that the packet transmits one single complete input packet, a segment of an input packet, or a plurality of input packets. The fields included in the base header may also indicate presence of an additional header and a substream identifier.
Method and system for rendering content using templates
According to some embodiments, an application launcher of a media player device launches an application bundle, the application bundle including a binary code. In response, a first server is accessed based on a universal resource locator (URL) specified by the application bundle to download an executable script. The executable script is parsed to configure a script runtime environment based on a predetermined template associated with the executable script. A first application programming interface (API) and a second API are enabled, where the first API is used to access a predetermined library maintained by the media player device and the second API is used to communicate with the binary code. The executable script is executed within the script runtime environment to render content, including rendering standard content by invoking the predetermined library via the first API and rendering customized content by invoking the binary code via the second API.
Monitoring the performance of a content player
Improving a content player engagement is described. An engagement of a first content player with respect to a content item being downloaded by the first client is measured. Performance information associated with the first content player is obtained. A quantitative relationship between the engagement and the performance information is determined. How a second client obtains the same content is adjusted based at least in part on the determined quantitative relationship.
Predictive caching of media content
Technologies are disclosed herein for providing a media application service for predictive caching of media content on a mobile device. The media application service is configured to consider usage data related to media content playback by a user on one or more devices, a connectivity profile of the mobile device, and to generate a list of media content to cache on the mobile device when power and network connectivity requirements of the mobile device are met or exceeded.
User activity tracking system
In one embodiment, sensor signals corresponding to motions of a client device are received. Activities of a user corresponding to the client device are determined, based on a first analysis algorithm that uses the sensor signals to select activity types, each activity type corresponding to a particular time period. A reference to the selected activity types is sent to the client device. User input indicating whether the reference is correct is received from the client device. Based on the indication, which reflects the accuracy of the first analysis algorithm, a priority between the first analysis algorithm and a second analysis algorithm is determined, based on determining which analysis algorithm is more accurate.
Social network system with access provision mechanism and method of operation thereof
A method of operation of a social network system includes: receiving a service request for accessing a peripheral device revealed through a social graph of a social platform; determining a request type for matching the service request to a device service provided by the peripheral device; authorizing the device service through the social graph for accessing the peripheral device; and generating a service command based on the request type of the device service authorized for executing the device service for the peripheral device.
Securely transferring session information
For securely transferring session information, code creates a session transfer packet in response to receiving a selected option associated with running a server application using a second browser. The session transfer packet has a claim number and a session transfer key. Code activates an authentication application on an electronic device in response to receiving the selected option. In addition, code communicates a claim packet to the electronic device in response to the selected option. The claim packet has the claim number and a server address. The code also receives the claim number from the authentication application. The code further communicates the session transfer packet to the authentication application in response to receiving the claim number. In addition the code communicates a cookie header to the second browser in response to receiving the session transfer key from the second browser.
Reconstruction of states on controller failover
Systems and methods for feature reconstruction as well as dialog preservation during a server failure are described. Specifically, failover mechanisms are described which enable an endpoint to remain involved in a communication session as well as have communication features preserved during the communication session even though a server initially providing those communication features has failed. A survivable server is also described that has the ability to reconstruct features as well as dialogs based on state information received from the endpoint involved in the communication session.
Path computation element communication protocol session establishment method and device
Disclosed are a path computation element communication protocol (PCEP) session establishment method and device. The technical solution comprises: at a PCC or PCE node device side, before needing to establish a PCEP session, allocating a TCP connection communication end attribute to a PCC or a PCE at either end in the manner of static configuration/dynamic designation or election mechanism automatic allocation; or detecting whether to establish a TCP connection relationship, if not, actively connecting the opposite end, and if a plurality of TCP connection relationships has been established, simultaneously cutting off a plurality of connections at both ends, and reinitiating a TCP connection after waiting a random time respectively. The present invention achieves the establishment of a PCEP session in the multi-PCE cooperation computation scenario under the condition of meeting two constraint conditions which are specified by a protocol.
Methods and systems for providing time and date specific software user interfaces
Computer systems, methods and software for responding to remote clients with content selected based on when the request is made. The method may include selecting one or more interface components based on the time of day and/or date of the request, and returning a response including the selected interface components. The method may include adjusting the time for a time zone for the remote client and/or user. Interface components may be fully embedded in the response, or may be references to external components. Interface components may include data relating to a user task associated with the date and/or time of day, formatting information for displaying the task data to the user of the remote client, instructions for user interaction with the task data, etc.
Distributed data storage
The present invention relates to a distributed data storage system comprising a plurality of storage nodes. Using unicast and multicast transmission, a server application may write data in the storage system. When writing data, at least two storage nodes are selected based in part on a randomized function, which ensures that data is sufficiently spread to provide efficient and reliable replication of data in case a storage node malfunctions.
Storage management system, management device, and method for managing shared storage space
A storage management method, includes steps: detecting sizes of shared storage spaces of all terminal devices joined in a sharing system; dividing the all terminal devices into a number of device groups according to local area networks where the terminal devices located in; classifying the terminal devices of each group into a number of kinds of terminal devices according to the sizes of the shared storage spaces of the terminal devices; mapping the shared storage spaces of each kind of terminal devices of each device group to one corresponding virtual disk of one row of a virtual disk array card; and determining a size of a file to be stored when receiving a storing request, and selecting a virtual disk with size nearest to and greater than or equal to that of the file, and storing the file into the terminal devices mapping to the selected virtual disk.
System and method for migrating an agent server to an agent client device
In a network of mobile agents, data integrity can be improved by providing an agent server that can migrate between devices operating in the region of interest (ROI). The agent server distributes agent clients onto devices in the ROI and provides agent server services to the agent clients, including receiving and storing data from the agents. When the agent server device is to leave the ROI, the agent server can migrate to any device executing an agent client and continue to provide the agent server services, including data collection and aggregation, from the device to which the agent server has migrated.
Allocating and managing cloud computing resources for disaster recovery
A method, executed by a computer, for allocating resources includes assigning resiliency attributes to a server having a workload, linking each server to a partner resource, duplicating the workload of each server in an offsite location accessible to the partner resource, detecting a disaster event, and transferring the workload of the server automatically to the partner resource. In some embodiments, the partner resource is a plurality of pool servers. The partner resource may be calculated by performing a capacity analysis. The partner resource may not a specifically assigned resource until a disaster occurs. In some embodiments, the workload is duplicated such that the recovery point objective of the workload is minimized. A computer program product and computer system corresponding to the methods are also disclosed herein.
Peer-to-peer live streaming
According to a peer-to-peer protocol, a peer-to-peer network includes multiple clubs and multiple peers that receive content distributed by a source of the network. Each of the plurality of peers is part of at least two of the clubs. As content is generated, the source divides the content into multiple data blocks and assigns each data block to a club. Each data block is transmitted to peers that belong to the club assigned to the data block. When a peer in a club receives a data block assigned to that club, the peer distributes the data block to other peers in the club. Additionally, the peer transmits the data block to peers in other clubs. Also, the peer receives data blocks assigned to other clubs from peers that are not members of the club.
Using resource timing data for server push in multiple web page transactions
This patent document describes, among other things, methods and systems for determining which if any page resources a server might push to a client (using, e.g., an HTTP 2.0 server push mechanism). The approaches described herein improve web page load times by pushing page resources that a client is likely to need to render the base page, while reducing wasteful server pushes of resources that the client is unlikely to request from the server because, for example, they are already cached at the client.
Data retrieval based on bandwidth cost and delay
The invention provides for a download agent executing on a computing device. The download agent determines the status of each of the source servers, and downloads from source servers that are in the available state. Additionally the download agent tracks characteristics of the source servers. The download agent determines the required bandwidth of portions of the media content stored on the source servers. Based on the characteristics of the source servers and the required bandwidth of the portions of the media content, the download agent determines how much media content should be downloaded from which source servers and at what time.
Reconnection of a client to a server in a transaction processing server cluster
Reconnection of a client to a server in a transaction processing server cluster having a single address. A connection is established with a first server in the server cluster and units of work are requested at the first server. A failure of the connection to the first server is detected. A connection is established with a second server in the server cluster and units of work at the second server are requested. A reconnection request is received from the first server, in which the first server has unresolved units of work. The connection with the second server is terminated, including completing current units of work. The client is reconnected with the first server and the unresolved units of work with the first server are resynchronized.
System and method for integrating an electronic pointing device into digital image data
A method and system is provided for creating an integrated video stream based on relative location and movement of a wireless pointing device. The system includes a receiver for continuously receiving position data from a wireless pointing device and a processor for calculating an initial position and orientation of the wireless pointing device based on the position data received from the wireless pointing device, accessing additional data from a secondary source based on input data received from the wireless pointing device, and creating the integrated video stream based on an original video stream, the initial position and orientation of the wireless pointing device and the additional data accessed from the secondary source. The system further includes a server for transmitting the integrated video stream to the wireless pointing device to be rendered on a screen thereof.
ADFDI support for custom attribute properties
In various embodiments, methods, systems, and non-transitory computer-readable media are disclosed that expand the ability of integrated workbook developers to drive the integrated workbook experience from model metadata by defining custom properties on model attributes and then binding those custom properties to UI component properties in desktop UI components.
Cloud service control and management architecture expanded to interface the network stratum
Disclosed is a method comprising: transmitting, by a cloud service control gateway (CSCG) positioned in an application stratum, a resource query to a network control gateway (NCG) positioned in a network stratum, wherein the resource query comprises a source address, a destination address list, and a network resource requirement. Also disclosed is a method comprising: receiving, by a network control gateway (NCG) positioned in a network stratum, a resource query from a cloud service control gateway (CSCG) positioned in an application stratum, wherein the resource query comprises source address, a destination address list, and a network resource requirement. Also disclosed is a method comprising: receiving, by a network control gateway (NCG) positioned in a network stratum, a resource reservation request from a cloud service control gateway (CSCG) positioned in an application stratum, wherein the resource reservation request comprises a destination address list and a first network resource requirement.
Enabling delivery of protected content using unprotected delivery services
Disclosed are an apparatus and method configured to perform media file encryption. One example method may include retrieving a media file stored in a memory during a play time operation, executing the media file and receiving additional portions of the media file during the play time operation. The method may also include processing the media file and the additional portions of the media file to generate an output media and displaying the output media on a display of a user device.
Addressing application program interface format modifications to ensure client compatibility
An approach is described for addressing API modifications to ensure client compatibility. An associated method may include receiving, via a communications network, a web services request from a client application. The request may include requested information and request metadata in a first data format in accordance with a data contract. The method further may include transmitting the web services request to a server application and receiving from the server application a server response to the web services request. The server response may include a response to the requested information in a second data format and response metadata in the second data format. The method further may include evaluating the server response by completing a comparison of the request metadata in the first data format with the response metadata in the second data format and generating a client-compatible response to the web services request based upon the comparison.
Apparatus, method, and computer readable medium for providing a presentation on a network having a plurality of synchronized media types
An apparatus, method, and computer readable medium is disclosed for receiving in a client node a timing command indicating a time at which to display a presentation portion comprising a first stream content and a second stream content and synchronizing display of the first stream content with the second stream content to the client node using a stream delay parameter, wherein the delay parameter accounts for the propagation time difference between the first stream content and the second stream content, wherein the first stream content and the second stream content are synchronously rendered at the client node at a time derived from the time indicated by the timing command and the stream delay parameter.
Online social persona management
Embodiments utilize a framework for modeling user's social roles in online self-expression tools such as blog or social networking, via semantic modeling techniques. The different ways users engage with content when stating explicit interests in their profile and via social expressions in a community are modeled. Certain themes guide the patterns users follow for expressing their interests in this community. An embodiment allows users to track how their posts and comments reflect with their online behavior. An embodiment infers the needs of the online community and makes suggestions or recommendations or sends alerts to users. Other embodiments are described and claimed.
Enforcing usage policies on combinations of collected data to be disseminated to destination systems
This disclosure relates to enforcing restrictions on data collected from a first set of systems and disseminated to a second set of systems. For example, a method for enforcing a set of restrictions includes receiving a first trait and a second trait that include data describing a user that has interacted with an online service. The first trait is labelled with a first usage restriction and the second trait is labelled with a second usage restriction different from the first usage restriction. The method further includes combining the first trait and the second trait into a segment. The segment preserves labelling of the first trait with the first usage restriction and the second trait with the second usage restriction. The method further includes controlling use of the segment based on the first usage restriction and the second usage restriction.
Data resource control through a control policy defining an authorized context for utilization of a protected data resource
Disclosed is a method, a device, and/or a system of a data resource control data structure. In one embodiment, a computer-implemented method includes receiving an authorization request from a device to utilize a protected resource within a datastore. A control policy that defines an authorized context in which the device is authorized to utilize the protected resource is extracted from a security node of a non-hierarchical data structure. The control policy includes a control algorithm and optionally a control dataset. Context values specified in the control algorithm are retrieved to form a context dataset. Utilization of the protected resource is authorized when it is determined by the control algorithm that the context dataset conforms to the authorized context. The security node may organize data into a domain structure that includes a unique identifier, an identity element, a content element, and a context element.
Security configuration file conversion with security policy optimization
Systems and methods for converting a configuration file from a first language into a second language with policy optimization and auditing are provided. According to one embodiment, a network appliance configuration converter parses network security policies of an input configuration file of a first network appliance to intermediate representations. The network security policies of the input configuration file are in a first language and the intermediate representations are general data structures for describing network security policies. The network appliance configuration converter optimizes network security policies in the intermediate representations and converts the intermediate representations to security policies of an output configuration file in a second language.
Object-relation user interface for viewing security configurations of network security devices
In a computer implemented method, selectable device icons that represent respective network security devices are generated for display. Responsive to a selection of one of the device icons, selectable interface icons that represent respective network interfaces used by the network security device represented by the selected device icon are generated for display. Responsive to a selection of one of the interface icons, selectable policy icons that represent respective security polices applied to the network interface represented by the selected interface icon are generated for display. Responsive to a selection of one of the policy icons, selectable object group icons that represent respective groups of security rule objects used in the network security policy represented by the selected policy icon are generated for display.
System and method for securing documents prior to transmission
A system and method for securing documents attached to emails is disclosed. The system and method apply security rules to an email as it is being composed to ensure that the security policies have been expressed prior to the email being sent. The security program hooks in to the message object model so that as the message is modified, the security rules are applied to each modification.
Reliable timestamp credential
A process for generating an access credential by a communication device may include determining whether a communication device successfully executed a predetermined shutdown sequence when the communication device last transitioned to an inactive state, determining whether the communication device has synchronized with an authorization network subsequent to transitioning back to an active state, and generating the access credential including a timestamp. The access credential may indicate whether the access credential has reliable timestamp information. The access credential can be provided to an access device associated with an authorization network to authenticate the communication device.
Simulating unauthorized use of a cellular communication network
Described embodiments include a system that includes a digital memory and a processor. The processor is configured to simulate, using information stored in the digital memory, an unauthorized use of a cellular communication network by at least one cellular communication terminal, by generating, and then transmitting from a network side of the cellular communication network, traffic that appears to have originated from the at least one cellular communication terminal. Other embodiments are also described.
Method and system for network-based detecting of malware from behavioral clustering
A computerized system and method for performing behavioral clustering of malware samples, comprising: executing malware samples in a controlled computer environment for a predetermined time to obtain Hypertext Transfer Protocol. HTTP traffic; clustering the malware samples into at least one cluster based on network behavioral information from the HTTP traffic; and extracting, using the at least one processor, network signatures from the HTTP traffic information for each cluster, the network signatures being indicative of malware infection.
Signature rule processing method, server, and intrusion prevention system
A signature rule processing method, a server, and an intrusion prevention system is provided. The method includes: performing, by a cloud server, correlation analysis on signature rule usage status information of each security device connected to the cloud server and a latest signature rule set published by the cloud server, to obtain a most active threat signature rule identification list, and sending, by the cloud server, update information to each security device to update a signature rule after generating the update information according to the most active threat signature rule identification list. The present invention is applicable to the field of network security systems.
Forecasting and classifying cyber-attacks using analytical data based neural embeddings
A first collection including an analytical feature vector and a Q&A feature vector is constructed. A second collection is constructed from the first collection by inserting noise in at least one of the vectors. A third collection is constructed by crossing over at least one of vectors of the second collection with a corresponding vector of a fourth collection, migrating at least one of the vectors of the second collection with a corresponding vector of a fifth collection. Using a forecasting configuration, an analytical feature vector of the third collection is aged to generate a changed analytical feature vector containing analytical feature values expected at a future time. The changed analytical feature vector is input into a trained neural network to predict a probability of the cyber-attack occurring at the future time.
Policy partial results
Technology for policies with reduced associated costs is disclosed. A policy may include an ordered rule set. When evaluated, the highest priority rule in the order that does not skip may control the policy outcome. Rules within a policy may have associated costs, such as data fetch and evaluation costs. In some contexts, it may be less important to evaluate every rule than to evaluate the policy quickly. Reduced policies that have one or more rules removed or that skip evaluation of some rules may be created for these contexts. When a rule of a policy is skipped, it may result in a possibility of a false allow or false deny. In some cases, rules may be duplicative. Removal or skipping of duplicative rules does not increase the possibility of a false allow or false deny. By using reduced policies in identified contexts, policy evaluation costs may be reduced.
Automatic shared personal image privacy level detection and management
Network traffic is monitored, and activities concerning posting images to sharing sites are detected. Detected activities can be attempts to login to sharing sites, or attempts to post images. Privacy concerns associated with sharing images on target sites are identified. In the case of detecting a successful attempt to login to a known sharing site, the site is scanned for the privacy settings in effect for the user, and it is determined whether the settings are below a given threshold. Another example of a privacy concern is detecting an attempt to post an image to an unknown site. When a privacy concern is detected, the user is warned, and prompted to indicate whether images are to be posted to the target site anyway. Attempts to post images to sites that are subject to privacy concerns are processed according to received user directives (e.g., blocked or allowed).
Search engine with privacy protection
A search engine system with privacy protection, including a data indexer configured to create an index of data, a search engine configured to search the index of the data in response to a query, and create a search result set including excerpts from the data, and a privacy protector configured to identify at least one data entity within at least one excerpt of the search result set that meets at least one predefined entity extraction criterion, redact the search result set by removing the data entity from the excerpt, and present the redacted search result set on a computer output device.
Internet address filtering based on a local database
A device may receive a request to access a resource. The resource may be associated with resource information. The device may obtain rating information based on receiving the request. The rating information may identify a rating associated with the resource. The device may apply an access rule based on the rating information. The access rule may identify an access indicator to generate based on the rating information. The access indicator may indicate an action to perform related to the resource. The device may generate the access indicator based on applying the access rule to the rating information. The device may store, locally in one or more memories, information that indicates an association between the access indicator and the resource information.
Techniques for call-based user verification
Techniques for call-based user verification are described. In one embodiment, for example, an apparatus may comprise a processor circuit and a storage component. The apparatus may further comprise a session component, an identification (ID) component, a mapping component, and a verification component. The session component may be operative on the processor circuit and configured to receive session data from a client device and store the session data in the storage component. The ID component may be operative on the processor circuit and configured to request ID data from a server, receive ID data from the server, and send the ID data to the client device. The mapping component may be operative on the processor circuit and configured to map the session data with the ID data. The verification component may be operative on the processor circuit and configured to receive a confirmation from the client device, request verification from the server, and upon receiving verification from the server, verify the client device. Other embodiments are described and claimed.
Connection management of smart devices with automobile head unit
Embodiments are directed towards establishing a network connection between a mobile device and an automobile head unit. A user of the mobile device interacts with a user interface on the mobile device to establish the connection with the head unit. If authorized, the head unit disconnects a currently connected device if the connection is to be via classic Bluetooth protocols. If the head unit has reached a maximum number of registered mobile devices, then the head unit sends a request to the mobile device for a selection of which currently registered mobile devices are to be unregistered. The head unit registers the mobile device with the head unit and establishes the connection between the mobile device and the head unit via classic Bluetooth protocols or Bluetooth Low Energy protocols depending on the type of connection request.
Implementing single sign-on in a transaction processing system
A single sign-on is implemented in an online transaction processing system. A security token extracted from a transaction request is received. The security token is validated and, in response to a positive validation, security information is extracted. The security information is processed to validate the transaction request and a set of validation attributes is generated. The set of validation attributes is stored in a read-only data object. A transaction server is notified of the read-only data object to authorize processing of the transaction request by the transaction server.
Method for enabling lawful interception by providing security information
A method and apparatus are provided. Information associated with a lawful interception of communication data of a user equipment is received. Security information associated with the communication data of the user equipment is provided in response to the received information. The security information is based on a first secret which is shared between a communication network provider and the user equipment.
Split authentication network systems and methods
Disclosed is a system comprising: an authentication datastore; a device presence engine; a traffic monitor engine; an authentication presence monitor engine; an authentication server selection engine; and a traffic routing engine. In operation: the device presence engine is configured to detect presence of a user device on a trusted network; the traffic monitor engine is configured to monitor, in response to the detection, traffic on the trusted network from the device; the authentication presence monitor engine is configured to evaluate onboarding characteristics of the user device in response to the monitoring; the authentication server selection engine is configured to select one of a plurality of authentication servers to authenticate the user device to the trusted network, the selecting based on the onboarding characteristics; and the traffic routing engine is configured to route traffic from the user device to the selected authentication server.
Key downloading method, management method, downloading management method, device and system
Disclosed is a key downloading method. The method comprises: sending a hardware series number (SN) and a first random number (Rnd1) to a key server; receiving a second random number (Rnd2), a first encrypted text (C1) and a key server working certificate (KSWCRT) sent by the key server; authenticating the validity of KSWCRT by using a KSRCRT; if valid, extracting a public key (PuKS) from the KSWCRT, and decrypting the first encrypted text (C1) by using the PuKS to obtain a third random number (Rnd1′); determining whether Rnd1 is consistent with Rnd1′; if consistent, encrypting the second random number (Rnd2) by using a terminal authentication public key (TKP_Pu) to generate a third encrypted text (C2′), and sending the C2′ to the key server; receiving an key encrypted text (Ctmk) sent by the key server; and obtain a master key (TMK), and storing the TMK in a security control module.
Management of encryption within processing elements
A streaming environment includes at least a first processing element of a first compute node and a second processing element of a second compute node. A tuple encryption operation is determined of the first processing element and the second processing element. The first processing element includes a first encryption key for encrypting the tuples as the leave the first processing element. An encryption workload is measured of the tuple encryption operation of a processing workload of the use of the first encryption key of a transfer of the stream of tuples. A threshold of the tuple encryption operation is determined. The second processing element is migrated to the first compute node and fused to the first compute node with the first processing element. The tuple encryption operation is removed from the first processing element.
System and method for encryption key management in a mixed infrastructure stream processing framework
A system and method for protecting streams in a mixed infrastructure includes determining processing elements that are to access a data stream in a stream processing environment and determining a security level for each processing element. Keys are generated per stream per processing element in accordance with the security level. The keys are associated with processing elements in an access control list in a location accessible by producing and consuming processing elements. The stream is decrypted for processing using keys released upon authenticating processing elements in accordance with the access control list. At security boundaries, the stream is re-encrypted in accordance with a next processing element.
Secure stream buffer on network attached storage
A network attached storage device coupled to a local network and including a network interface configured to receive digital content from a remote content provider outside the local network. The network attached storage device includes storage having a first region accessible by a user of the local network and a secure region. The network attached storage device includes a processor coupled to the storage, the processor configured to control access to the secure region of the storage based on instructions received from a remote content provider.
Method and apparatus for managing device context using an IP address in a communication system
The present invention relates to a system configuration and an apparatus for preventing the infringement of user privacy, and for collecting and analyzing information regardless of the service feature and type, while a system providing a context aware service collects and analyzes user information. The present invention discloses a method of configuring and using a context analyzer and a device profile database in order for the system providing the context aware service to collect and analyze information regardless of the service feature and type.
Method and apparatus for accessing third-party resources
A method, system, and apparatus for providing a client access to third-party resources by utilizing third-party access tokens via a network gateway. The method can prevent the third-party access tokens from being exposed directly to the client environment. The client receives a gateway security credential, which encapsulates the third-party access token in an encrypted form. The client provides the gateway access token to the network gateway where the third-party access token is decrypted and then used to access the third-party resource. Client requests to the network gateway are executed using a custom API. The gateway relays the client requests to the appropriate third-party resources using the third-party-specific API with the decrypted third-party access token. Gateway access tokens are short-lived and can be renewed according to the client-environment life cycle.
System and method for securing virtualized networks
Systems and methods for securing a dynamic virtualized network are provided. According to one embodiment, a network policy of a dynamic virtualized network is received by an SDN controller of the dynamic virtualized network. The network policy includes network policy elements which each identify (i) an authorized endpoint, (ii) a network access device, and (iii) a port of the network access device with which the authorized endpoint is associated. A security policy for the dynamic virtualized network is generated based on the network policy, by, for each network access device, creating a set of appropriate security measures for the network access device. Each security measure specifies how network traffic in the dynamic virtualized network is to be processed by a port of the network access device. Finally, the security policy is applied to each affected network access device.
Enhancing privacy and security on a SDN network using SDN flow based forwarding control
A computer implemented method for providing security on a software defined network (SDN). The method comprises providing a master SDN controller for managing data flow control on the SDN network. Requesting access to a uniform resource locator (URL) from a requesting networked device. Initiating a domain name system (DNS) interaction with the requesting networked device. Relaying by the DNS data associated with the requested URL to a threat management control system (TMCS). Determining by the TMCS if the requested URL has an associated security criteria. Communicating a threat status by the TMCS to the SDN co-controller associated with the requesting networked device.
Generation of paths through graph-based data representation
Embodiments of the invention generally provide a method, a computing system, and a computer-readable medium configured to generate requests for payload data through a graph-based data representation. The computer-implemented method includes generating a first request for translation that specifies a first path configured to identify first payload data associated with a graph object. The computer-implemented method further includes transmitting the first request to a path evaluator for translation. The computer-implemented method also includes receiving a first translated path based on the first path and including an initial translated portion and a final untranslated portion, from the path evaluator. The computer-implemented method further includes receiving the first payload data from the path evaluator.
Evaluation of paths through graph-based data representation
Embodiments of the invention generally provide a method, a computing system, and a computer-readable medium configured to respond to requests for payload data and provide unique cache keys for caching the payload data. The computer-implemented method includes accepting a first request for translation that specifies a first path configured to identify first payload data associated with a graph object. The computer-implemented method further includes determining that the graph object includes a first translation node associated with a first portion of the first path. The computer-implemented method also includes obtaining, from the graph object, a second path that is associated with the first translation node. The computer-implemented method further includes replacing the first portion of the first path with the second path to generate a first translated path. The computer-implemented method also includes obtaining, from the graph object, the first payload data, based on the first translated path.
Client-driven load balancing of dynamic IP address allocation
Techniques are described for load balancing between DHCP servers at a DHCP client. Embodiments include receiving, at the DHCP client, a respective DHCPOFFER message from each of two or more DHCP servers, wherein each of the DHCPOFFER messages includes an IP address offer and load information describing a current workload of the respective DHCP server. One of DHCP servers is selected, at the DHCP client, to accept an offer for an IP address from, based on the received load information and a subnet on which the selected DHCP server is located. Embodiments transmit a DHCPREQUEST message, from the DHCP client, to the selected DHCP server, to accept the IP address offer from the selected DHCP server.
Delivery control device, data delivery system, delivery control method, and non-transitory computer readable medium storing delivery control program
Provided is a delivery control device, a data delivery system, and a delivery control method that enable a simultaneous data delivery to a number of reception terminals by increasing the number of reception terminals simultaneously connecting to a router. The delivery control device 100 includes an IP address-MAC address record unit 105 that associates an IP address with a plurality of MAC addresses and holds the IP address and the MAC addresses, and a transmission unit 101, 102 that specifies a destination MAC address to transmit a packet. The transmission unit 101, 102 transmits a packet addressed to a predetermined IP address to all the MAC addresses that have been associated with the IP address in the IP address-MAC address record unit 105.
Proxied outgoing message transmission
In particular embodiments, a mailbox server is operable to receive, from a client, a message to be delivered to an endpoint; store the message in a mailbox associated with the user; access a set of policies for the client or the endpoint; determine a delivery channel for the message based on the policies; and transmit the message to the endpoint through the delivery channel. In particular embodiments, the mailbox server may transmit SMS messages via a special bind with a recipient's SMSC, or via a carrier short code. In particular embodiments, the mailbox server may transmit the message as an email or via an internal messaging system over a packet data connection.
Intelligent information sharing system
Embodiments of the present invention disclose a method, computer program product, and system for information sharing. The method may receive user created content from a user. It may then extract information, having one or more types of information from the user created content. At least one type of the extracted information is semantic concepts. It may then determine one or more messaging platforms on which to share the user created content. It may determine that based on at least a correlation between: the extracted information; and historical data correlating the extracted information with what messaging platforms the user created content was sent to. I may notify the user of the one or more determined messaging platforms. It may receive a selection from the user of one or more determined messaging platforms. It may transmit the user created content to the selected messaging platform or platforms.
Communication apparatus and method of controlling same
Disclosed is a communication apparatus in which it is possible to change the size of data transmitted at one time, the data size being changed to one size in case of transmission of e-mail via a mail server and to different size in case of transmission that is not performed via a mail server. E-mail data having image data as an attached file is generated and it is determined whether a predetermined server will intervene when e-mail is transmitted to a transmission destination. When it has been decided that the destination will be a mail server, it is determined whether the e-mail data has exceeded a prescribed size. E-mail data for which it has been determined that the prescribed size is exceeded is divided into a plurality of segments and then the e-mail data is transmitted to destination decided.
Mechanism for enabling layer two host addresses to be shielded from the switches in a network
Methods and systems for shielding layer two host addresses (e.g., MAC addresses) from a network are provided. An edge network device interposed between a network of switches and multiple local hosts receives from a first local host a first packet destined for a first destination host. The first local host has a first layer 2 (L2) address and a first layer 3 (L3) address associated therewith. The first packet includes the first L2 address as a source L2 address of the first packet, and includes the first L3 address as a source L3 address of the first packet. The edge network device shields the first L2 address from the network of switches by replacing the source L2 address for the first packet with a first substitute L2 address of a first communication channel of the edge network device before sending the first packet to the network of switches.
Data streaming scheduler for dual chipset architectures that includes a high performance chipset and a low performance chipset
A dual chipset architecture, a method of operating a scheduler for a dual chipset architecture, and a computer program product for operating a scheduler for a dual chipset architecture. In an embodiment, the dual chipset architecture comprises a high performance processor, a low performance processor, and a scheduler for the processors. The scheduler is provided for determining an expected data traffic flow to the chipset, and for selectively enabling the high and low performance processors, based on this expected data flow, ahead of this expected data flow reaching the chipset. In one embodiment, a specified data traffic indicator is associated with the expected data traffic flow, and the scheduler uses this specified data traffic indicator to determine the expected data traffic flow. In an embodiment, this specified data traffic indicator is a value for a defined window size for the expected data flow.
Techniques for a switch to receive network controller sideband interface control packets
Examples may include receiving, at a switch, an Ethernet frame having an Ethernet header that may indicate the Ethernet frame includes a network controller sideband interface (NC-SI) control packet from a management controller at a compute node coupled to the switch. In some examples, a response to a command included in a received NC-SI control packet that was encapsulated in an Ethernet frame may be processed at the switch and sent to the management controller.
System and method for providing small cell gateway redundancy
An example method is provided and may include steps of configuring a HeNB with plurality of global eNode B identities (global eNB IDs), where each global eNB ID is associated with one of a plurality of HeNB gateways (HeNB-GWs), and broadcasting a first global eNB ID by the HeNB when the HeNB is served by a first HeNB-GW. When/if the HeNB loses connectivity with the first HeNB-GW, the method provides a step of switching the broadcasting from the first global eNB ID to a second global eNB ID and re-parenting the HeNB, now broadcasting or is configured to start/continue broadcasting the second global eNB ID, from being served by the first HeNB-GW to being served by a second HeNB-GW.
Efficient auto detection for next generation WLAN
An auto-detection scheme may be applied to a physical layer (PHY) preamble of a communications packet, such as an 802.11 packet, to identify which generation of a communication standard was used to generate the packet. A packet of a wireless transmission may be received by a wireless device. The packet may include a PHY preamble, including a first field, such as a legacy long training field (L-LTF), and a second, subsequent field, such as a non-legacy Signal field. The wireless device may determine that the first field is encoded using a Fast-Fourier Transform (FFT) of a first size, and that the second field is encoded using a FFT of a second, different size. This determining may identify a generation of the communication standard used to generate the packet. In response to the determining, the wireless device may decode the packet according to the identified generation of the communication standard.
Apparatus and method for failover of device interconnect using remote memory access with segmented queue
A first remote memory access link is established between a first communications interface card on the first computing device and a second communications interface card on the second computing device. In response to an error associated with the first remote memory access link, messages are copied from a segmented queue associated with the first communications interface card to a segmented queue associated with a third communications interface card on the first computing device. A second remote memory access link between the third communications interface card and a fourth communications interface card is activated on the second computing device, and messages are resent from the segmented queue associated with the third communications interface card to the fourth communications interface card through the second remote memory access link. The second computing device discards duplicate received messages, if any.
Mechanism to extend the remote get to do async rectangle broadcast on a rectangle with wild cards in the packet header
A method (and structure) for improving efficiency in a multiprocessor system including a plurality of processor nodes interconnected in a multidimensional array, each processor node including a processor, an associated memory device, and an associated inter-nodal interface device for exchange of data with other nodes. Each processor can implement a broadcast procedure as an initiator node, using a format that permits inter-nodal interface devices at each node receiving a broadcast instruction packet to process the received broadcast instruction packet without using processing resources of the processor at the receiving node. Each inter-nodal interface device in each node can implement the broadcast procedure without using processing resources of the processor associated with the receiving node.
Filtering on classes and particulars of a packet destination address at lower-protocol layers in a networked device
In one embodiment, a lower protocol layer in a network device filters packets based on a class and a particular of a destination address prior to sending information from the received packet to a higher protocol layer. For example, certain constrained networks include network nodes that do not have the ability to maintain a multicast distribution entry for each multicast address used in the network. By only forwarding on a portion of a multicast address, packets are often delivered to nodes in addition to the actual multicast subscribers. By filtering these incorrectly delivered packets at a lower protocol layer (e.g., layer-2 or layer-3), processing cycles at higher protocol layers are avoided. Additionally in one embodiment, class and particulars are deterministically determined (e.g., using a same hashing function) such that services can be discovered and used by subscribing to a corresponding multicast group.
Full duplex services using RTS/CTS
Systems and methods are described for point-to-point and point-to-multipoint full duplex networking. In some embodiments, physical, medium access control (MAC), and routing protocols are integrated. In some embodiments, cross-layer optimization by the use of a full duplex capability table in performing routing and messaging is used to increase the channel utilization of full duplex networks, thereby making it possible for multiple nodes to communicate simultaneously over the same channel. In some embodiments, such full duplex capability is provided using Wi-Fi or Wi-Fi-like wireless protocols in a mesh network.
Method and system for detecting proxy internet access
A method for detecting proxy internet access includes intercepting an access request from a proxied terminal of a same internet account; and sending a redirection packet to the proxied terminal sending the access request. The redirection packet carries a first timestamp indicating when the redirection packet is sent. The method also includes receiving a reported timestamp difference between the first timestamp and a second timestamp. The second timestamp is a system time of the proxied terminal acquired after the proxied terminal receives the redirection packet. Further, the method includes executing a clustering process on the reported timestamp difference to obtain a clustering result; and based on the clustering result, detecting whether the same internet account is a proxy account.
Methods and apparatus to predict end of streaming media using a prediction model
Methods and apparatus to predict end of streaming media using a prediction model are disclosed herein. Examples disclosed herein determine a bandwidth rate associated with streaming media presented in a streaming media application from a proxy. Examples disclosed herein also generate a prediction model based on characteristics of the bandwidth rate and determine an end time for the streaming media from the prediction model.
Modifying an activity stream to display recent events of a resource
Modifying an activity stream to display recent events of a resource includes checking-in a user to a resource to provide context about the resource, specifying a time duration for which the user is checked-in to the resource, and modifying, based on the time duration, an activity stream of the user to display recent events of the resource.
Modifying an activity stream to display recent events of a resource
Modifying an activity stream to display recent events of a resource includes checking-in a user to a resource to provide context about the resource, specifying a time duration for which the user is checked-in to the resource, and modifying, based on the time duration, an activity stream of the user to display recent events of the resource.
Access point resource consumption management
Embodiments include systems and methods for managing resource consumption by a processor of a wireless access point. The processor may monitor associations and dissociations of one or more client devices with the access point, and may monitor a network load of the access point. The processor may determine whether the network load is below a load threshold, and may determine radio capabilities of one or more client devices associated with the access point. The processor may select a radio of the access point based on the determined radio capabilities of one or more client devices associated with the access point, and may place the selected radio of the access point in a low-power mode.
A method for use in a data processing system connected to a network in accordance with a data transfer protocol, the data processing system having one or more event queues for holding network events, and being capable of responding to interrupts issued in response to the presence of a network event in the data processing system by invoking a stack to cause processing in accordance with the data transfer protocol of network events on the event queues; the method comprising: deciding whether to permit the interrupts to be enabled, in dependence on the result of a determination as to the presence of current indications that the stack will be invoked by an entity in the data processing system to cause processing in accordance with the data transfer protocol of network events on the event queues.
Information processing apparatus, information processing method, and computer readable medium
A notification acquiring section receives, from a device, a notification message indicating at least one of an aggregate value of data communication amounts obtained by aggregating, per unit of aggregation time of one second or longer, the data communication amounts of the device which have been measured on a millisecond or microsecond basis; and an aggregate value of data accumulation amounts obtained by aggregating, per unit of the aggregation time, the data accumulation amounts in the device which have been measured on the millisecond or microsecond basis. A determining section analyzes at least one of the aggregate values of the data communication amounts and the data accumulation amounts indicated by the notification message to determine whether or not microburst traffic has occurred at the device.
Associating infrastructure assets in a data center
A data center infrastructure monitoring system and method that includes a plurality of geographically distributed data centers, each data center of the plurality of data centers having a plurality of physical infrastructure assets. A central monitoring center is communicatively coupled to one or more data centers of the plurality of data centers and configured to, in response to receiving, by a computing device, indications of a plurality of user inputs creating one or more graphical relationships between a plurality of icons depicting infrastructure assets in a data center, determine, by the computing device and based on the graphical relationships, hierarchical relationships between the infrastructure assets in the data center depicted by the icons, and store data indicative of the hierarchical relationships between the infrastructure assets.
Methods and apparatuses for discovery and notification of services
Methods and apparatuses for discovery and notification of services are described for creating a service, discovering the service, and providing notification of the service. In one embodiment, the methods and apparatuses for discovery and notification of services identifies a content provider; identifies a service wherein the service corresponds with the content provider; forms a service record within the service registry wherein the service record represents the service; and allows a content user to discover the service through the service registry.
Systems and methods for remote configuration update and distribution in a network of moving things
Systems and methods for the remote update and distribution of configuration information in a communication network made up of a plurality of nodes some of which are mobile and some of which are fixed in location. Updated information for configuring the nodes may be updated using different types of routes through the communication network, where some routes may be direct from a node to a location of an update, some routes may pass through another node, and some routes may be used only when a certain communication technology is available. The nodes may be dynamically configured based on a number of factors.
Method and apparatus for managing access information for registration of device in smart home service
Methods and apparatuses are provided for managing access information for registration of a device in a smart home service. A validity period of a refresh token for updating an access token of a first device, from a device list for the smart home service, registered in a connectivity server, is checked, when the device list is received from a server. The server is requested to re-register the first device, when a period to the validity period is less than a predetermined threshold period.
Network functions virtualization interconnection gateway
Novel tools and techniques might provide for implementing interconnection gateway and/or hub functionalities between two or more network functions virtualization (“NFV”) entities that are located in different networks. In some embodiments, a NFV interconnection gateway (“NFVIG”) might receive a set of network interconnection information from each of two or more sets of NFV entities, each set of NFV entities being located within a network separate from the networks in which the other sets of NFV entities are located. The NFVIG might be located in one of these networks. The NFVIG might abstract each set of network interconnection information, and might establish one or more links between the two or more sets of NFV entities, based at least in part on the abstracted sets of network interconnection information. The NFVIG might provide access to one or more virtualized network functions (“VNFs”) via the one or more links.
Apparatus for transmitting broadcast signals, apparatus for receiving broadcast signals, method for transmitting broadcast signals and method for receiving broadcast signals
The present invention provides a method of transmitting broadcast signals. The method includes, processing input streams into plural PLPs; encoding data of the each PLPs according to code rates, wherein the encoding data of the each PLPs further includes, encoding data of at least one PLP with LDPC codes, bit interleaving the LDPC encoded data of the PLP, mapping the bit interleaved data onto a set of constellations according to the code rate, MIMO encoding the mapped data, and time interleaving the MIMO encoded data; building at least one signal frame by mapping the encoded data of the each PLPs; and modulating data in the built signal frame by OFDM method and transmitting the broadcast signals having the modulated data, wherein the bit interelaved data of each PLPs are mapped by using either QAM, NUQ, or NUC.
Channel probing signal for a broadband communication system
In a broadband wireless communication system, a spread spectrum signal is intentionally overlapped with an OFDM signal, in a time domain, a frequency domain, or both. The OFDM signal, which inherently has a high spectral efficiency, is used for carrying broadband data or control information. The spread spectrum signal, which is designed to have a high spread gain for overcoming severe interference, is used for facilitating system functions such as initial random access, channel probing, or short messaging. Methods and techniques are devised to ensure that the mutual interference between the overlapped signals is minimized to have insignificant impact on either signal and that both signals are detectable with expected performance by a receiver.
Uplink resource allocation in a wireless network
A plurality of cells comprise a primary cell with no configured scheduling request (SR) resources and a secondary cell with configured SR resources. A wireless device transmits an SR associated with an SR process in the SR resources. The wireless device monitors at least one downlink control channel for uplink grants. The wireless device initiates a random access procedure and cancels the SR process when in a subframe: the SR process is pending; no uplink data channel resources are available for transmission; and a time alignment timer of an sTAG comprising the secondary cell is not running.
Phase-shift-keying (PSK) pilot
The apparatus enables pilot signals, whether single tone or multiple tone, that achieve a very low PAPR. After receiving an allocation for multiple tones, the apparatus determines a pilot signal for transmission. The apparatus may select tones from the allocation for transmission of a pilot signal based on a pilot pattern. The pilot pattern may comprise a tone sequence that identifies a sequences of tones, wherein each tone in the tone sequence of identifies one tone of multiple tones for transmission of a pilot signal during a given pilot symbol period. The pilot signal may also comprise a signal sequence. The apparatus may generate a set of multi-tone modulated pilot sequences, select a pilot sequence based on a cross-correlation property, and transmit a pilot signal using multiple tones of the allocation using the selected pilot sequence.
Base station apparatus, wireless communication system, and communication method for uplink coordinated multi-point transmission and reception with intra-phy split base station architecture
A base station apparatus is provided with at least one remote unit apparatus each including at least one antenna, and a central unit apparatus connected to each remote unit apparatus via a transmission path. The antenna provided in the remote unit apparatus receives a transmission signal wirelessly transmitted from at least one wireless terminal each including at least one antenna. The remote unit apparatus includes a channel estimation unit that estimates channel information between the antenna of the wireless terminal and the antenna of the remote unit apparatus, using a reception signal received by the antenna provided in the remote unit apparatus, a likelihood calculation unit that calculates likelihood of each transmission signal included in the reception signal, for each antenna provided in the remote unit apparatus, using the channel information estimated by the channel estimation unit, and an inter-unit transmission unit that transmits likelihood information calculated by the likelihood calculation unit to the central unit apparatus. The central unit apparatus is provided with an inter-unit receiving unit that receives the likelihood information transmitted from the inter-unit transmission unit, and a signal detection unit that combines the likelihood information received by the inter-unit receiving unit, and outputs a signal corresponding to each transmission signal transmitted from the wireless terminal, using combined likelihood information.
Techniques to associate user data with a mobile device
Techniques to associate user data with a mobile device are described. In one embodiment, for example, an apparatus may comprise a service support component and a storage component. The services support component may be operative to receive a data package request from a service, the data package request comprising a network identifier for a mobile device associated with a user, and exchange a data package with the service in response to the data package request. The storage component may be operative to access the data package associated with the user based on the network identifier. Other embodiments are described and claimed. Other embodiments are described and claimed.
Applying circuit delay-based physically unclonable functions (PUFs) for masking operation of memory-based PUFs to resist invasive and clone attacks
An authentication device is provided that authenticates an electronic device based on the responses from distinct types of physically unclonable functions. The authentication device receives a device identifier associated with the electronic device. It then sends one or more challenges to the electronic device. In response, the authentication device receives one or more responses from the electronic device, the one or more responses including characteristic information generated from two or more distinct types of physically unclonable functions in the electronic device.
Devices, systems, and methods for authenticated intravascular device use and reuse
Devices, systems, and methods for reconditioning an intravascular device for reuse are provided. The method includes reading first security data from a memory of the intravascular device; determining if the intravascular device is authentic; generating second security data, when the intravascular device is authentic; and writing the second security data to the memory of the intravascular device. Devices, systems, and methods for authenticating an intravascular device for use are also provided. The method includes bringing an intravascular device into communication with a computing device, the intravascular device including a memory; determining if first security data is authentic; determining, when the first security data is authentic, if the intravascular device has been reconditioned; determining, when the intravascular device has been reconditioned, if the second security data is authentic base; and permitting, when second security data is authentic, use of the intravascular device in the clinical procedure.
Multivariate public key signature/verification system and signature/verification method
Multivariate public key signature/verification system including a signature module and a verification module. The signature module contains a processor, first affine transformation inversion component, isomorphic inversion component, trapdoor component, isomorphic component, and second affine transformation inversion component. Corresponding computations are executed sequentially by the components on a message to be signed; solutions are generated after being processed by the trapdoor component; one solution is selected randomly and transmitted to the isomorphic component and second affine component for processing, and a signature generated is transmitted with the message to the processor. The verification module contains the processor and a public key transformation component. The signature is transmitted by the processor to the transformation component and substituted into each multivariate polynomial in a public key mapping. The processor judges whether the obtained data is equal to the message in a memory: if yes, the signature is valid, if not, it is invalid.
Signed application cards
A device displays signed application cards. The device receives a card object that includes: an application function identifier that identifies an application function of a native application, a digital signature, and a certificate that comprises a public key. The device verifies the authenticity of the digital signature with the public key in the certificate. The device determines that the certificate is signed by a developer of the native application referenced by the card object. The device renders an application card on the display based on the information included in the card object. The application card includes a text string, an image, an audio, and/or an image. The device overlays an indicator onto the application card. The indicator indicates that the authenticity of the digital signature has been verified. The indicator also indicates that the developer of the native application authorized the rendering of the application card.
Multivariate cryptography based on clipped hopfield neural network
The systems and methods disclosed herein, in one aspect thereof, can encrypt and decrypt messages using a multivariate extended Clipped Hopfield neural network that uses a Diffie-Hellman like key exchange algorithm. The proposed cryptosystem comprises three stages that are involved in the communication. A first stage, where parameters are initialized and private keys are generated, a second stage where various base matrix pairs and threshold vectors are synchronized between the sender and the recipient, and a third stage, where encryption/decryption is performed.
Adaptive envelope extracting apparatus, signal decoding apparatus and short-distance contactless communication apparatus applying the adaptive envelope extracting apparatus, and method thereof
An envelope extracting apparatus includes: a clock extracting device arranged to extract a clock signal of a receiving modulation signal according to a first biasing voltage; and an edge detecting device arranged to generate a detecting signal to indicate an envelope edge of the receiving modulation signal according to a delayed clock signal of the clock signal and a second biasing voltage; wherein the second biasing voltage or a delay time of the clock signal is adjustable.
Clock recovery method and device
A clock recovery method and device relate to the field of communication; and address the problem of the non-synchronization between the sampling clock of the transmitter and the sampling clock of the receiver. The method includes calculating a clock sampling error, a signal phase error compensation value, and a residual phase error compensation value based on data obtained after polarization demultiplexing and equalizing; adjusting a sampling clock based on the clock sampling error; performing phase adjustment for the first time based on the signal phase error compensation value; performing phase adjustment for the second time based on the residual phase error compensation value. The technical scheme provided by the embodiments of the present document is adapted to a coherent data receiver, and achieve the mechanism of the three levels of error compensation.
Provided is a communication apparatus usable for any case where a time synchronization function is necessary or unnecessary by attaching or detaching a synchronization model for realizing the time synchronization function. A clock generation unit, a logic circuit unit including a synchronization module monitoring unit, a clock selection unit, and a main circuit unit configured by a switch LSI are integrally formed on the same substrate, and the synchronization module is detachably mounted on the substrate via connectors. The connectors each have a mounting determination pin that indicates a different signal level depending on whether the synchronization module is mounted. The synchronization module monitoring unit monitors connection signals indicating signal levels of the mounting determination pin, and causes the clock selection unit to select a synchronization clock when the synchronization module is mounted, and an internal clock when the synchronization module is not mounted.
Terminal device, base station device, communication method, and integrated circuit
A terminal device which communicates with a base station device includes a reception unit that decodes a PDCCH having a DCI format 1C accompanying a CRC which is scrambled by using a TDD reconfiguration RNTI. The DCI format 1C includes an instruction of an uplink-downlink configuration for a plurality of serving cells. Thus, a mobile station device and the base station device can efficiently communicate with each other.
Method and device for sending pilot signal
Embodiments of the disclosure disclose a method and device for sending a pilot signal. The method includes: generating a sub-frame carrying user-specific pilot signals, wherein the sub-frame includes one or more resource blocks, the resource block includes a plurality of resource elements in a symbol-subcarrier plane, locations of the resource elements in the symbol-subcarrier plane are determined by an OFDM symbol and subcarrier, a first part of the user-specific pilots signal are carried by the resource elements of the initial one or more OFDM symbols in the resource block, and a second part of the user-specific pilot signals are carried by resource elements of other OFDM symbols in the resource block; and sending the sub-frame carrying the user-specific pilot signals. The methods and devices are capable of improving the precision of channel estimation.
Receiver and method of receiving
A receiver comprises a radio frequency demodulation circuit configured to detect and to recover a received signal. The received signal has been formed and transmitted by a transmitter to carry the payload data as Orthogonal Frequency Division Multiplexed (OFDM) symbols in one or more of a plurality of time divided frames, each frame including a preamble including a plurality of bootstrap OFDM symbols, one or more of the bootstrap OFDM symbols of the preamble carrying signalling data represented as a relative cyclic shift of a signature sequence which has been combined with the one or more of the bootstrap OFDM symbols. The receiver comprises a detector circuit configured to detect and to convert a useful part of the bootstrap OFDM symbols into the frequency domain, a bootstrap processor configured to detect the signalling data from the bootstrap OFDM symbols in the frequency domain, using an estimate of the channel transfer function determined from one or more of the bootstrap OFDM symbols, and a demodulator circuit configured to recover the payload data from the payload OFDM symbols using the signalling data. The bootstrap processor comprises an equalizer configured to reduce an effect of the channel transfer function in the frequency domain from the bootstrap OFDM symbols carrying the signalling data, a signature sequence remover configured to remove an effect of the signature sequence in the frequency domain from the bootstrap OFDM symbols carrying the signalling data, and a slope estimator configured to detect an average change in phase between adjacent sub-carriers of the bootstrap OFDM symbols after the effects of the channel transfer function and the signature sequence have been removed from the bootstrap OFDM symbols carrying the signalling data. A signalling data detector is configured to identify the signalling data based on the detected average change in phase, which is representative of the cyclic shift applied to the signature sequence. Accordingly, embodiments of the present technique can provide an arrangement for detecting the signalling data from the bootstrap OFDM symbols in the frequency domain.
Seamless match point switching in MLSE-based modems
Method and system for providing seamless match point switching in an adaptive decoder (e.g., an MLSE decoder) that is based on estimation of symbol sequences, according to which statistics regarding samples corresponding to different symbol sequences in alternative match points are collected by a statistics collector, to create a set of figures of merit representing the quality of each alternative match point, while different match points are obtained by changing the delay of symbols decoded by the adaptive decoder and samples entering the statistics collector. A figure of merit of the current match point is compared to the figure of merit of alternative match points. Whenever an alternative match point figure of merit is better than the current match point by a predefined threshold, a decision to switch to the alternative match point is made. Seamless switching to the alternative match point is performed by shifting the sampling phase forward or backward, until obtaining better performance, while performing adaptation of the decoder to the sampling phase shift.
Low cost gain clamped EDFA for TWDM passive optical network application
A communication system includes a first optical system and a second optical system optically connected to a clamping laser and a pump laser. The first optical system includes first and second optical splitters. The first optical splitter is configured to receive a clamping laser signal from the clamping laser and split the signal into split clamping laser signals. The second optical splitter is configured to receive a pump laser signal from the pump laser and split signal into split pump laser signals. The second optical system is optically connected to the first optical system and includes amplifier systems. Each amplifier system is configured to receive a multiplexed signal. The second optical system includes first and second combiners optically connected to an erbium-doped fiber. The first combiner is optically connected to the first splitter, and the second combiner is optically connected to the second splitter.
Voting scheme for time alignment
Systems and methods for time aligning time-stamped measurements using a voting scheme are disclosed. The system and method filter incoming measurements based on whether the time-stamped measurements fall within a defined time window. In response to determining that the time stamp falls within the defined time window, the time-stamped measurement is added to a time slice corresponding with the time stamp. In response to determining that the time-stamped measurement does not fall within the defined time window, the time window is re-established based on a voting scheme.
Synchronous measurement system
A synchronous measurement system includes a controller and a sensor unit connected to the controller. The controller transmits a plurality of synchronization commands to the sensor unit at every predetermined interval. The sensor unit transmits measurement data to the controller in synchronization with each one of the plurality of synchronization commands. The controller includes a data processing section configured to process the measurement data transmitted from the sensor unit and a counter configured to count the synchronization command. The controller builds a data structure in which a count value of the synchronization command corresponding to the measurement data is added to the measurement data.
Method of processing a plurality of signals and signal processing device
A method for processing a plurality of signals may include receiving one or more observations characterizing a wireless channel, performing a channel estimation to determine a probabilistic channel model for the wireless channel, and processing the plurality of signals using the probabilistic channel model. The channel estimation may include numerically updating one or more multipath gain estimates and one or more multipath delay estimates based on the one or more received observations and a probability distribution associated with the probabilistic channel model.
Smart box for automatic feature testing of smart phones and other devices
An automatic system level testing (ASLT) system for testing smart devices is disclosed. The system comprises a system controller operable to be coupled with a smart device in an enclosure, wherein the system controller comprises a memory comprising test logic and a processor. The system also comprises the enclosure, wherein the enclosure comprises a plurality of components, the plurality of components comprising: (i) a robotic arm comprising a stylus, wherein the stylus is operable to manipulate the smart device to simulate human interaction therewith; and (ii) a platform comprising a device holder, wherein the device holder is operable to receive a smart device inserted there into. The processor is configured to automatically control the smart device and the plurality of components in accordance with the test logic.
Measuring system and a measuring method with broadband synchronisation and narrow-band signal analysis
A measuring system serves for measuring a broadband measurement signal. It contains a receiving unit for receiving the measurement signal and a processing unit for processing the measurement signal. The receiving unit is configured to receive the measurement signal with a broad bandwidth within a first measurement run. The processing unit is configured to recover information from the measurement signal received with a broad bandwidth. In turn, with the assistance of the information, the receiving unit is configured to receive at least one first frequency subdivision of the measurement signal with a narrow bandwidth within a second measurement run.
Method and apparatus for beamforming calibration in point to multipoint communication systems
Methods and apparatus for calibrating an antenna array are provided. A limited number of antenna elements of the array are operated to broadcast a signal. The signal carries information relevant to operation of a communication network, for receipt by other devices. By using one or a limited number of antenna elements, a radiation pattern covering a wide area is achieved. Concurrently, transmission of the broadcast signal is monitored using another one or more antenna elements of the array, operating in a receive mode. The monitored signal is used in an antenna array calibration operation. The procedure is repeated for various different transmitting and receiving antenna elements, resulting in a sequence of broadcasts using different parts of the array. The calibration results can be used to correct for operating errors such as phase shifter errors. The corrected phase shifters can then be used for beamforming during another phase of communication.
Network fiber optic cable connector with magnetic contacts
A method and fiber optic coupling system are provided. The method includes establishing that a physical coupling has occurred between a fiber optic cable and a fiber optic Small Form-factor Pluggable (SFP). The fiber optic cable includes a cable magnetic connector. The fiber optic SFP includes a SFP magnetic connector having a plurality of magnetic switches. The fiber optic SFP is operably coupled to a SFP circuit board, an emitter, and a receiver. The method further includes determining that the cable magnetic connector has applied a magnetic field to the plurality of magnetic switches. The method further includes activating the emitter and the receiver, responsive to the magnetic field being applied to the plurality of magnetic switches.
Individual DC and AC current shunting in optical receivers
A circuit may include amplifier circuitry configured to receive a current signal at an amplifier input node, convert the current signal to a voltage signal, and output the voltage signal at an amplifier output node. The circuit may also include overload circuitry configured to receive a replica DC input voltage and a replica DC output voltage. The overload circuitry may be further configured to detect that the current signal exceeds a threshold level based on the replica DC input voltage and the replica DC output voltage. In addition, the overload circuitry may be configured to, in response to and based on detecting that the current signal exceeds the threshold level, direct DC current of the current signal through a DC shunt path and direct AC current of the current signal through an AC shunt path. The AC shunt path may be different from the DC shunt path.
Drive circuit and optical network unit
A drive circuit includes a bias current supply circuit for supplying a bias current to a light-emitting element and a modulated current supply circuit for supplying a modulated current to the light-emitting element, and has a first path through which the bias current flows, a second path including a path for supplying the modulated current to the light-emitting element from the modulated current supply circuit, through which a current returns to the bias current supply circuit through the modulated current supply circuit from the bias current supply circuit without going through the light-emitting element when the bias current flows, and a third path which is joined to the second path in the modulated current supply circuit and has an adjusting resistance before a junction, through which a current flows through the adjusting resistance to the bias current supply circuit when the bias current flows.
Image-acquisition-based linking for wearable group communication device
Systems, methods, software and apparatus enable linking of a wearable end user communication device (EUD) to an intermediate communication device (ICD) utilizing optical symbol sequence matching. Optical symbol reference data corresponding to an optical symbol sequence displayed on the EUD is obtained from the EUD by the ICD. Optical symbol input data is also acquired by the ICD (e.g., via user inputs, EUD device proximity data, image acquisition). The devices are linked if the optical symbol reference data and optical symbol input data match. The optical symbol reference data can be displayed, allowing user confirmation of a match with the optical symbol sequence displayed on the EUD. An ICD user interface touchscreen can present users with selectable color inputs to replicate the optical symbol sequence displayed on the EUD, for example using an LED array. Communications between the devices before and after linking can utilize Bluetooth low energy.
System and method for line-of-sight optical broadcasting using beam divergence and an orbiting or airborne corner cube reflector
A system comprises a tracking electromagnetic beam generator, a retro-reflecting device, a signal generator, a communication electromagnetic beam generator and a receiver. The tracking electromagnetic beam generator transmits a tracking electromagnetic beam. The retro-reflecting device reflects the tracking electromagnetic beam toward the tracking electromagnetic beam generator. The signal generator generates a communication signal. The communication electromagnetic beam generator transmits a communication electromagnetic beam, based on the communication signal, to the retro-reflecting device. The receiver receives a portion of the communication electromagnetic beam as reflected from the retro-reflecting device.
Visible light communication system and method and related device
The invention discloses a visible light communication system and method, and related devices, and in this solution, a visible light signal emitted by a light emitting device can be converted into a first voltage amplitude signal, a first filter process can be performed on the first voltage amplitude signal to obtain a second voltage amplitude signal in which the amplitude of the voltage signal around the frequency range of the visible light signal is suppressed, and the visible light signal can be converted into a level signal according to the voltage difference between the second voltage amplitude signal and the first voltage amplitude signal, to thereby address the problems of a required highly satisfactory light environment, low robustness to interference, a high bit error rate, etc., in visible light communication based upon constant reference voltage.
Apparatus and method for generating visible signal according to amount of data transmission in visible light communication system
A method and apparatus are provided for generating a visible light signal according to an amount of data transmission in a first Visible Light Communication (VLC) device. The method includes determining a ratio of an amount of data that has been received from a second VLC device to a total amount of data to be received; determining a visible light signal pattern corresponding to the ratio; generating a visible light signal corresponding to the visible light signal pattern; and outputting the visible light signal.
Identifying a location in a network where noise is generated
Configurations and processes for detecting a location at which noise is being generated in a network are disclosed. A device for identifying a location in a network at which noise is being generated may include: an acquiring unit for acquiring amplitude fluctuations in signals transmitted from a first device via a second device in the network; and a detecting unit for detecting a noise-generating device that is transmitting signals containing noise on the basis of the amplitude fluctuations acquired by the acquiring unit.
Method for detecting OTDR curve tail end event to locate optical fibre break point in online mode
Disclosed is a method for detecting an OTDR curve tail end event to locate an optical fiber break point in an online mode, comprising following steps: 1, an OTDR emits detection light to an optical fiber operation link, and receives reflection light to form reflection sampling point data containing tail end event; 2, head end reflection point in sampling point is found out; 3, traversal is carried out to find search region end point; 4, segmented line fitting is carried out in region of [search region end point, head end reflection point] in reversed direction, start point of section of line meeting predetermined condition is used as a search region start point; 5, if absolute value of difference between largest sampling value in search region and sampling value of search region start point is larger than second preset threshold value, tail end event is judged as reflection tail end event.
Identifying network faults
A method of identifying network faults includes receiving subscriber statuses of customer premises equipment (CPE) of a communication network represented as a tree having a root node and leaf nodes. Each leaf node corresponds to a CPE. For each CPE, the method includes: (i) determining a conditional probability of the subscriber status of the CPE for each sub-tree in the network tree; (ii) determining a joint probability of the subscriber status of the CPE for every sub-tree in the network tree; (iii) determining a joint probability of the subscriber status of the CPE for every residual tree in the network tree; and (iv) determining a Bayesian posterior probability of a cut at each leaf node, given the subscriber status of the CPE. The method further includes determining a network node status topology indicating node statuses of nodes of the network tree based on the determined Bayesian posterior probabilities.
System and method for communicating over an 802.15.4 network
A method of reducing data transfer while increasing image information over an 802.15.4 network includes obtaining an image with a sensor, modulating a representation of the image using a first 802.15.4 modem, sending the representation of the image to a coordinator, demodulating the representation of the image using a second 802.15.4 modem, and digitally enhancing at least one of the representation of the image and the image. A system for communication over an 802.15.4 network includes a sensor for obtaining data, the size of the data being at least an order of magnitude greater than the size of an 802.15.4 packet, a first 802.15.4 modem coupled to the sensor, a buffer for temporarily storing the data to allow transmission of portions of the data; the buffer being coupled to the sensor, a coordinator coupled to the sensor, the coordinator being capable of communicating with a computer, and a second 802.15.4 modem coupled to the coordinator.
Transmission mode selection
Transmission mode selection operations include determining that a first wireless device out of a plurality of wireless devices connected to an access node qualifies for a beamforming transmission mode, determining that a pair of wireless devices out of the plurality of wireless devices qualifies for a multi-user multiple-input multiple-output (MU-MIMO) transmission mode, comparing a first total throughput of the access node using the beamforming transmission mode with a second total throughput of the access node using the MU-MIMO transmission mode, and selecting the downlink transmission mode from the first total throughput and the second total throughput that has a highest total throughput.
Method and apparatus for transmitting and receiving reference signal through beam grouping in wireless communication system
A method for transmitting a reference signal by a base station in a wireless communication system is provided. The method includes transmitting configuration information for a reference signal to a terminal, performing a scrambling operation which multiplies the reference signal by a sequence on the basis of a beam group identifier for each of at least two beam groups set on a single cell, and transmitting the reference signal, to which the scrambling operation has been performed on the basis of the configuration information, to the terminal.
Beamforming configuration scheme
A beamforming configuration is changed during a cyclic prefix that precedes a symbol period. For example, the beamforming configuration for a transmitter can be changed during an orthogonal frequency-division multiplexing (OFDM) cyclic prefix that precedes a fast Fourier transform (FFT) window. At the receiver, the cyclic prefix is reconstructed based on the chips received during FFT window. In this way, there is no loss of data signaling due to the transmitter reconfiguring its beamforming.
MIMO-FBMC transmitter/receiver with linear precoding implemented in the frequency domain
The invention relates to a MIMO-FBMC transmitter/receiver with linear precoding implemented in the frequency domain. In one embodiment, at the transmitter the linear precoding is performed (5251, . . . ,525KN) after filtering and spectral spreading, before the IFFT and combination of FBMC symbols in the time domain, such that the precoding does not introduce interference between data streams. In a second embodiment the linear precoding may be combined with the beamforming at transmission or at reception so as to spatially separate the data streams.
Multi-user multiple-input and multiple-output for digital subscriber line
A method implemented in a network element (NE), comprising obtaining, via a processor of the NE, a plurality of encoded signals associated with a plurality of downstream (DS) channels in a network, wherein the plurality of DS channels form a plurality of DS multiple-input and multiple-output (MIMO) groups, performing, via the processor, MIMO pre-coding on the plurality of encoded signals according to the plurality of DS MIMO groups, performing, via the processor, crosstalk pre-coding on the plurality of encoded signals jointly after performing the MIMO pre-coding to produce a plurality of output signals, and transmitting, via transmitters of the NE, synchronously the plurality of output signals to a plurality of remote NEs via the plurality of DS channels.
Method and apparatus for multiple frame transmission for supporting MU-MIMO
A method of multi user multiple input multiple output (MU-MIMO) communication in a wireless local area network (WLAN) system, and a transmitting device therefore, are discussed. The method according to an embodiment includes generating an Aggregate-Medium Access Control Protocol Data Unit (A-MPDU) including an A-MPDU subframe which includes a Medium Access Control Protocol Data Unit (MPDU) delimiter field and an MPDU; and generating a Physical Layer Protocol Data Unit (PPDU) including the A-MPDU by using a guard interval. The guard interval is selected by the transmitting device among a short guard interval and a long guard interval. The guard interval used for the PPDU is selected to be the short guard interval when the PPDU is generated for a plurality of receiving devices, all of which support the short guard interval. The method according to the embodiment further includes transmitting the PPDU to the plurality of receiving devices.
Wireless communication system, wireless communication apparatus, and wireless communication method
A wireless communication system is disclosed. The system performs data transmission from a first terminal including N antennas to a second terminal including M antennas using spatially multiplexed streams (N and M are integers larger than or equal to 2).
System and method for 3D imaging using a moving multiple-input multiple-output (MIMO) linear antenna array
A method generates a three-dimensional (3D) scene image of a scene using a MIMO array including a set of antenna by first selecting a subsets of the antennas as transmit antennas and receive antennas. Radio frequency (RF) signal are transmitted into the scene using the subset of transmit antennas while the MIMO array is moving at a varying velocity. The RF signal are received at the subset of receive antennas as MIMO data, which is aligned and regularized. Then, a compressive sensing (CS)-based reconstruction procedure is applied to the aligned MIMO data to generate the 3D image of the scene.
Power/data electrical coupler
An electrical coupler includes: a sending transformer having a winding for receiving data signals and two windings connected in series with a common point and two terminals to be connected to a first wires pair of a bus to deliver the data signals at the first winding terminals to said wire pair; a receiving transformer having two windings connected in series with a common point and two terminals to be connected to a second pair of wires of said bus to receive data signals on the pair of wires and a winding for delivering said data signals; and a galvanic isolation transformer with a first winding, the terminals of which are connected to the coupler's power supply pins, and second and third windings connected in series with a common point connected to a mechanical ground and the respective free terminals connected to the common terminals of sending and receiving transformers.
Apparatus for providing communication services and methods thereof
Aspects of the subject disclosure may include, for example, a system for modulating a first electrical signal to generate first modulated electromagnetic waves, and transmitting the first modulated electromagnetic waves on a waveguide located in proximity to a transmission medium. In one embodiment, the first electromagnetic waves can induce second electromagnetic waves that propagate on an outer surface of the transmission medium. The second electromagnetic waves can have a first spectral range that is divided into, contains or otherwise includes a first control channel and a first plurality of bands. Other embodiments are disclosed.
High isolation switch with notch filter
A switching method and apparatus that provides high isolation between circuit arms of a mobile communication device by attenuating noise over a defined frequency range using a switched shunt LC notch filter.
Electronic device having waterproof structure
An electronic device is provided. An electronic device includes a window formed with a transparent or semi-transparent material at an outside of the electronic device, a display disposed on or over the window and having a second side substantially vertical to a first side, and first and second members to absorb or block moisture inflowing from the outside. The window includes a first area corresponding to the display and a second area corresponding to the outside of the display, the first member is disposed on a part of the second area, the second member is disposed on a part of the first member and on a part of the display, a height of the first member is substantially identical to a height of the display, and a width of the first member or a height of the second member is substantially identical to the first side of the display.
Electronic device including an impedence matching circuit
An electronic device (eyeglasses-type wireless communication device) to be worn by a user includes a wearing section to be worn by the user and an extending section formed in the wearing section and disposed in a direction extending away from the user when the wearing section is worn on the user's head. A first antenna is formed in the extending section.
Packaged intrinsic safe industrial modem
A packaged cellular modem system includes a capacitor for receiving power from a DC power source, a DC-to-DC converter coupled to capacitor electrodes, a cellular modem coupled to the converter output and to an antenna, and an IS barrier circuit coupled to a modem output. A microcontroller coupled to a boost regulator has its output coupled to electrodes. A metrology jumper is between the microcontroller and ground. An encapsulation material provides a potted area for the capacitor, converter, modem, IS barrier circuit and microcontroller. A SIM card is coupled to the modem by the IS barrier circuit. LED's are coupled to the microcontroller. The SIM card and LEDs are in a non-potted area. A transparent SIM card access cover over the SIM card and LEDs enables exposing the SIM card.
Communication circuit chip and electronic device configured to communicate with plural memory cards
A communication circuit chip includes a controller, a power manager, and a memory. The controller selectively communicates, based on a reception signal that is received through an antenna, with one memory card among first and second memory cards. The power manager transfers power, in response to receiving the reception signal through the antenna, to the one memory card that is selected to communicate with the controller. The memory stores content data such that content of data stored in each of the first and second memory cards is recognized. The controller selects the one memory card that is to communicate with the controller from among the first and second memory cards, with reference to the stored content data.
Transmission circuit, high-frequency front-end circuit, transmission signal control method, and high-frequency front-end transmission/reception control method
A transmission circuit includes a transmission signal generation unit, a control unit, and a transmission signal amplification unit. The transmission signal generation unit generates a transmission signal that has been modulated. The transmission signal amplification unit includes a power amplifier that amplifies the transmission signal. The control unit determines a supply voltage signal having an amplitude characteristic of a period identical to that of an envelope of the transmission signal and supplies the supply voltage signal to the power amplifier. The control unit determines an output timing of the supply voltage signal such that a phase difference between a phase of the envelope of the transmission signal and a phase of the supply voltage signal does not become zero.
Radio frequency front-end system, signal transmission control method, and mobile terminal
Embodiments disclose a radio frequency front-end system and a signal transmission control method. The system includes a first antenna, a second antenna, a first radio frequency circuit, a second radio frequency circuit, and a controller. The controller is configured to acquire a transmission frequency band selected by the first radio frequency circuit, and when a frequency in the transmission frequency band selected by the first radio frequency circuit is less than a preset frequency, to control the first radio frequency circuit to connect to the second antenna. The controller is further configured to disconnect a connection between the second radio frequency circuit and the second antenna, or to maintain an open circuit state between the second radio frequency circuit and the second antenna.
Front end circuit and method of operating a front end circuit
The present invention concerns a front end circuit (1) which comprising a first tunable duplexer (5) comprising a first tunable RX bandpass filter (9) and a first tunable TX bandpass filter (10), wherein the first tunable duplexer (5) is configured to support a first FDD mode in a first FDD frequency band and a first TDD mode in a first TDD frequency band. Furthermore, the present invention concerns a method of operating the front end circuit.
Systems and methods for implementing a wireless device that supports WLAN modules operating simultaneously in different wireless bands
Systems and methods for enabling a WLAN client to communicate simultaneously over more than one band at a time are described, where each client has at least one radio that is operational in each supported band. Load balancing based on traffic requirements optimizes the use of the multiple bands.
System and method for informational reduction
Information reduction in data processing environments includes at least one of: one or more Error Correcting Codes that decode n-vectors into k-vectors and utilize said decoding to information-reduce data from a higher dimensional space into a lower dimensional space. The information reduction further provides for a hierarchy of information reduction allowing a variety of information reductions. Transformations are provided to utilize available data space, and data may be transformed using several techniques including windowing functions, filters in the time and frequency domains, or any numeric processing on the data.
High performance read-modify-write system providing line-rate merging of dataframe segments in hardware
A method of merging data frames includes: receiving a first data frame having a plurality of sectors; receiving a second data frame having a plurality of sectors; generating a merged output data frame by merging, using a plurality of data paths including a plurality of multiplexers, sectors of the second data frame with sectors of the first data frame; and performing an error check on at least one check-data frame having sectors corresponding to those in the first data frame or the second data frame, where at least some of the sectors in the check-data frame are transmitted on a subset of the plurality of data paths that transmits sectors of the merged output data frame, and where the error check verifies the merged output data frame.
Delta-sigma modulator and method for enhancing stability of delta-sigma modulator
A delta-sigma modulator includes a receiving circuit, a loop filter, a quantizer with a negative capacitor circuit and a feedback circuit. The receiving circuit is arranged for receiving an input signal and a feedback signal to generate a first signal. The loop filter is coupled to the receiving circuit, and is arranged for receiving the first signal to generate a filtered signal. The quantizer is coupled to the loop filter, and is arranged for generating a digital output signal according to the filtered signal, wherein the negative capacitor circuit is arranged at an input terminal of the quantizer. The feedback circuit is arranged for receiving the digital output signal to generate the feedback signal.
Magnetically differential loop filter capacitor elements and methods related to same
Apparatus and methods are disclosed that utilize magnetically differential loop filter capacitor elements that are physically positioned adjacent voltage-controlled oscillator (VCO) inductor/s in the device layout of a phase locked loop (PLL) circuit. Such a PLL circuit may be employed, for example, to produce a PLL output signal for RF receivers, RF transmitters, RF transceivers and any other type of circuit configured to utilize a PLL output signal having a phase that is based on the phase of an input signal.
Phase lock loop with a digital charge pump
A phase lock loop (PLL) includes a voltage-controlled oscillator (VCO) and a frequency detector to generate a FAST signal responsive to a frequency of a reference signal being greater than the frequency of a feedback signal derived from the VCO and to generate a SLOW signal responsive to the frequency of the reference signal being smaller than the frequency of the feedback signal. The PLL also includes a digital charge pump, a loop filter, and a state machine circuit. Responsive to receipt of multiple consecutive FAST signals when the digital charge pump is providing a charging current to the loop filter, the state machine circuit reconfigures the digital charge pump to increase the charging current to the loop filter. Responsive to receipt of multiple consecutive SLOW signals when the loop filter is discharging, the state machine circuit reconfigures the digital charge pump to cause the loop filter's discharge current to increase. Upon detection of a terminal condition, the state machine circuit may disable the digital charge pump and enable operation of an analog charge pump.
Supporting pseudo open drain input/output standards in a programmable logic device
Techniques and mechanisms allow a Programmable Logic Device (PLD) to support a pseudo open drain (POD) input/output (I/O) standard used in interface protocols such as fourth generation double data rate (DDR4). An OR gate with inputs including data and an inverted output enable from a user's design may be inserted into programmable logic. The output of the OR gate may be coupled with an input of an I/O buffer.
Semiconductor logic element and a logic circuitry
Disclosed is a semiconductor logic element including a field effect transistor of the first conductivity type and a field effect transistor of the second conductivity type. A gate of the first FET is an input of the semiconductor logic element, a drain of the second FET is referred to as the output of the semiconductor logic element and a source of the second FET is the source of the semiconductor logic element. By applying applicable potentials to the terminals of the field effect transistors it is possible to influence the state of the output of the logic element. Also disclosed are different kinds of logic circuitries including the described logic element.
High speed voltage level shifter
In one embodiment, a voltage level shifter includes a first p-type metal-oxide-semiconductor (PMOS) transistor having a gate configured to receive an input signal in a first power domain, and a second PMOS transistor, wherein the first and second PMOS transistors are coupled in series between a supply voltage of a second power domain and a node. The voltage level shifter also includes an inverter having an input coupled to the node and an output coupled to a gate of the second PMOS transistor, and a first n-type metal-oxide-semiconductor (NMOS) transistor having a gate configured to receive the input signal in the first power domain, wherein the first NMOS transistor is coupled between the node and a ground.
Pressure dependent capacitive sensing circuit switch construction
A user interface which includes a capacitive measurement circuit with a sense plate covered by an electrically conductive cover member, and wherein said circuit may sense two types of events, said types distinguished by an inverse change in measured capacitance, and wherein user proximity and touches with less than a minimum required force constitute one event type, and touches with more than said minimum force constitute the other event type.
Sensor device for a motor vehicle
A sensor device for a motor vehicle includes a multi-layer circuit board on which a plurality of metallized planes are formed. A capacitive sensor electrode is formed on one of the planes for detection by capacitive approachment sensing. A control device controls the sensor electrode as a capacitive sensor electrode in order to detect approaches of a user towards the sensor electrode via an evaluation device. At least one planar electrode region is formed on each of the metallized planes, wherein each of the electrode regions is coupled to the control device. At least two of the electrode regions on different metallized planes are activated and evaluated as sensor electrodes and at least two of the electrode regions on different planes are activated and evaluated as the ground in a temporally offset manner.
20V to 50V high current ASIC PIN diode driver
An apparatus includes a first circuit, a second circuit and a third circuit. The first circuit may be configured to generate a plurality of second signals by a voltage translation of a plurality of first signals. The second circuit may be configured to switch the second signals to generate a plurality of third signals. The second signals are generally switched such that (i) all third signals are inactive before one of the third signals transitions from inactive to active while a switching condition is enabled and (ii) all third signals are switched inactive while the switching condition is disabled. The third circuit may be configured to amplify the third signals to generate a plurality of output signals. Each of the output signals generally has a current capacity to drive one or more of a plurality of diodes in a diode switch circuit.
Reverse conduction mode self turn-off gate driver
An apparatus includes a switch module, a sense circuit coupled to the switch module and configured to indicate an operating conduction mode of the switch module, and a drive circuit operatively coupled to the switch module to enable and disable forward conducting mode of the switch module. Once the switch module is in forward conducting mode, the drive circuit is configured to maintain enablement of the forward conducting mode even if the sense circuit indicates reverse conduction mode.
Low-power retention flip-flops
A retention flip-flop is provided. The flip-flop includes a clock generation circuit, a master latch circuit, and a salve latch circuit. The clock generation circuit generates first and second clock signals in a first mode. The master latch circuit performs a first latch operation on an input signal from the input terminal according to the first and second clock signals to generate a first latched signal at a first node in the first mode. The salve latch circuit performs a second latch operation on the first latched signal according to the first and second clock signals to generate a second latched signal at a second node in the first mode. In a sleep or power-down mode, the total number of transistors in the clock generation circuit and the salve latch circuit is equal to or less than eight.
Electronic device capable of bandwidth compensation and method thereof
An electronic device capable of bandwidth compensation includes a register unit for storing a calibration code determined by performing an on-die termination (ODT) calibration process and a data receiving circuit, wherein the calibration code is utilized for controlling a termination resistance of an ODT unit. The data receiving circuit comprises a first control circuit coupled to the register unit and the active low-pass filter for generating a first control signal according to the calibration code stored in the register unit, the first control signal being utilized for adjusting a capacitance of a first feedback capacitor unit or a resistance of a first feedback resistor unit of an active low-pass filter.
In a high-frequency module, first and second inductors that adjust attenuation characteristics of a first filter of a filter component, are separated from each other such that the first and second inductors readily magnetic field couple with each other. Consequently, an amount of wiring used to define a first wiring electrode inside the filter component is reduced and a number of layers of a package substrate and the profile of the filter component are reduced. Consequently, variations in the attenuation characteristics of the first filter caused by the first wiring electrode electromagnetic-field coupling with another wiring electrode are prevented. The attenuation characteristics of the first filter is easily adjusted and improved by adjusting the inductance value of the second inductor.
Piezoelectric vibration element, piezoelectric vibrator, piezoelectric oscillator, and electronic device
A piezoelectric vibration element includes a piezoelectric substrate including (i) an excitation portion and (ii) a peripheral portion that is integrally arranged at a periphery of the excitation portion and whose thickness is smaller than that of the excitation portion. The piezoelectric vibration element further includes excitation electrodes that are arranged in a front-and-rear relationship on front and rear principal faces of the piezoelectric substrate. The excitation portion includes a first portion that is at a location of a maximum thickness of the excitation portion and a side face that is connected to (i) a principal face of the first portion and (ii) a principal face of the peripheral portion. The side face includes level difference portions having a level difference and a face that has no level difference from the principal face of the first portion to the principal face of the peripheral portion.
Methods for reconfiguring directional couplers in an RF transceiver
Provided herein are methods of reconfiguring directional couplers in an RF transceiver. The methods can include designing and reconfiguring the directional couplers to provide high directivity and a desired coupling factor using configurable capacitors to effect a mutual coupling and using lumped components or delay lines to effect a phase shift. The reconfigurable directional couplers can be designed for multi-band operation with an adjustable coupling factor conducive to semiconductor process integration. The reconfigurable directional couplers can have variable phase shifters to achieve a desired level of directivity in the coupler. In various examples, the methods include monitoring the frequency of power signals received by the reconfigurable directional couplers, and adjusting the configurable capacitors and/or variable phase shifters to maintain desired directivity and coupling factors over multi-band operation of the reconfigurable directional couplers.
Tunable microwave devices with auto-adjusting matching circuit
An embodiment of the present disclosure provides a circuit including an antenna having a tunable component. The tunable component can be operable to receive a variable signal to cause the tunable component to change a reactance of the antenna. The tunable component can include a first conductor coupled to the antenna, a second conductor, and a tunable material positioned between the first conductor and the second conductor, where at least one of the first conductor or the second conductor, or both are adapted to receive the variable signal to cause the change in the reactance of the antenna. Additional embodiments are disclosed.
A high-frequency module includes a wiring board, a first duplexer that separates a transmission signal and a reception signal in a first frequency band, and a second duplexer that separates a transmission signal and a reception signal in a second frequency band whose reception-side frequency band partially overlaps with a frequency band of a third-order harmonic of the first transmission signal. The first duplexer is disposed near a predetermined side on a first main surface of the wiring board, and the second duplexer is disposed near an opposite side opposing the predetermined side. An extended line extending from a first transmission terminal of the first duplexer and an extended line extending from a second reception terminal of the second duplexer are spaced away from each other.
Magnetoresistive effect device
A magnetoresistive effect device includes at least one magnetoresistive effect element including a magnetization fixed layer, a spacer layer, and a magnetization free layer, a first port, a second port, a first signal line which is connected to the first port and through which high-frequency current corresponding to a high-frequency signal input into the first port flows, a second signal line, and a direct-current input terminal. The magnetoresistive effect element is arranged so that a high-frequency magnetic field occurring from the first signal line is applied to the magnetization free layer. The magnetoresistive effect element is connected to the second port via the second signal line. The direct-current input terminal is connected to the magnetoresistive effect element.
Electrical filter, electrical equipment which is provided with such a filter and a vehicle which is equipped with such equipment
An electrical filter (10) is suitable for having a greater effectiveness for reducing the common mode current that an electrical device (30) can produce in the direction of a voltage source (20) which is used to supply this device. Such a filter can be useful for meeting the electromagnetic compatibility requirements set by the BMW Group Standard GS 95002-2 “Electromagnetic Compatibility (EMC)—requirements and tests on components up to 60 V nominal voltage”.
An electronic component includes a spiral or substantially spiral first inductor extending along a stacking direction while turning around a ring-shaped or substantially ring-shaped path. The first inductor includes first inductor conductors and a first interlayer connecting conductor connected to each other. The first interlayer connecting conductor passes through some insulating layers. A second interlayer connecting conductor passes through some insulating layers, and is connected in series and is located within the ring-shaped path. A first capacitor conductor is disposed closer to one side of the stacking direction than the first inductor is. The first capacitor conductor is at least partially superposed on the ring-shaped path to define a first capacitor between the first capacitor conductor and the first inductor, and is superposed on a portion of a region surrounded by the ring-shaped path to be connected to the second interlayer connecting conductor.
Multilayer electronic component
A multilayer electronic component includes a body including a dielectric layer and/or a magnetic layer, a terminal part including an input terminal, an output terminal, and a ground terminal connected to the body, and a filter part including a coil part disposed in the body and a capacitor part connected to the coil part and filtering a high frequency component of an input signal input to the input terminal. The capacitor part includes a plurality of first internal electrodes connected to the coil part and a plurality of second internal electrodes exposed to an exterior of the body.
Wireless receiver with reduced number of phase shifters
A wireless receiver includes an antenna receiving a right-handed circularly polarized (RHCP) signal and a left-handed circularly polarized (LHCP) signal, a first amplifier and a second amplifier coupled to the antenna, an intermediate summer coupled to the first and second amplifiers and providing a first intermediate signal, an intermediate subtractor coupled to the first and second amplifiers and providing a second intermediate signal. The wireless receiver also includes a V-signal summer providing a V-component output based on a sum of the first intermediate signal and the second intermediate signal, and an H-signal subtractor providing an H-component output based on a difference between the first intermediate signal and the second intermediate signal. The wireless receiver is configured to provide the V-component output and the H-component output without using a phase shifter.
Volume interactions for connected subwoofer device
Methods and systems are provided for volume interactions for connected playback devices. In an example implementation, a first playback device applies a state variable update associated with a group of playback devices comprising the first playback device and one or more second playback devices. The state variable update indicates a limited volume range associated with the first playback device. The first playback device renders audio content in synchrony with the one or more second playback devices. Rendering the audio content involves a subwoofer speaker of the first playback device rendering a bass frequency component of the audio content. The first playback device receives input data indicating a group volume adjustment for the group of playback devices and adjusting a playback volume of the first playback device based on the group volume adjustment and the limited volume range.
Push-pull amplifier, corresponding apparatus and method
A push-pull amplifier includes a pair of active devices driving the primary side of a double distributed active transformer (DDAT). The primary side of the DDAT includes a cascaded arrangement of primary windings of a first set of transformers with the active devices coupled ends of cascaded arrangement of primary windings. The secondary side of the DDAT includes a cascaded arrangement of secondary windings of a second set of transformers coupled to a load. Secondary windings of the first set of transformers drive inputs of respective active stages. Outputs of the active stages drive respective primary windings of the second set of transformers.
Sensor amplifier arrangement and method of amplifying a sensor signal
A sensor amplifier arrangement includes an amplifier having a signal input to receive a sensor signal and a signal output to provide an amplified sensor signal, and a feedback path that couples the signal output to the signal input and provides a feedback current that is an attenuated signal of the amplified sensor signal and is inverted with respect to the sensor signal.
Amplifying stage working point determination
An amplifier circuit including an amplifying stage and a predistortion stage is disclosed. The amplifier circuit outputs an output signal Xo. The predistortion stage is arranged for providing a predistortion signal Xp to be added to an input signal Xin of the amplifier circuit in order to compensate for non-linearites of said amplifying stage. According to the present invention, the amplifier circuit includes a working point unit arranged for determining a suitable working point WPsuitable to be used for said amplifying stage based on said predistortion signal Xp, and for adjusting an actual working point WPactual being used by said amplifying stage towards said suitable working point WPsuitable.
Dual-output asynchronous power converter circuitry
Dual-output power converter circuitry includes an input node, a first output node, a second output node, a number of capacitive elements, and a number of switching elements. The switching elements are coupled between the input node, the first output node, the second output node, and the capacitive elements. In operation, the switching elements charge and discharge the capacitive elements such that a power supply output voltage is provided asynchronously to the first output node and the second output node.
A method and apparatus are disclosed for a configurable mixer capable of operating in a linear, a legacy, and a low-power mode. In the linear mode, the configurable mixer is configured to operate as a double-balanced mixer to multiply a first differential signal by a second differential signal. In the legacy mode, the configurable mixer is configured to as a double-balanced mixer to multiply a differential signal by a single-ended signal. In the low-power mode, the configurable mixer is configured to operate as a single-balanced mixer to multiply a differential signal by a single-ended signal. The operating mode of the configurable mixer may be based, at least in part, on a mode control signal. In some embodiments, the configurable mixer may be included in an analog front end of a wireless communication device.
Harmonic mixer having two transistors driven complimentarily
A harmonic mixer that suppresses the degradation of the conversion efficiency is disclosed. That harmonic mixer includes an input transmission line, an output transmission line, and two transistors connected in parallel between the input transmission line and the output transmission line. Two transistors are complementarily driven by a local signal LO and generate an output signal RF with frequencies of 2×fLO±fIF, where fLO and fIF are frequencies of a local signal LO and an intermediate signal IF.
Resonator having distributed transconductance elements
A method includes forming a resonator comprising a plurality of switched impedances spatially distributed within the resonator, selecting a resonant frequency for the resonator, and distributing two or more transconductance elements within the resonator based on the selected resonant frequency. Distributing the two or more transconductance elements may include non-uniformly distributing the two or more transconductance elements within the resonator.
Distributed power harvesting systems using DC power sources
A photovoltaic panel with multiple photovoltaic sub-strings including serially-connected photovoltaic cells and having direct current (DC) outputs adapted for interconnection in parallel into a parallel-connected DC power source. A direct current (DC) power converter including input terminals and output terminals is adapted for coupling to the parallel-connected DC power source and for converting an input power received at the input terminals to an output power at the output terminals. The direct current (DC) power converter optionally has a control loop configured to set the input power received at the input terminals according to a previously determined criterion. The control loop may be adapted to receive a feedback signal from the input terminals for maximizing the input power. A bypass diode is typically connected in shunt across the input terminals of the converter. The bypass diode functions by passing current during a failure of any of the sub-strings and/or a partial shading of the sub-strings. The bypass diode may be a single bypass diode connected across the parallel-connected DC power source. The DC power converter may convert the input power at high current to the output power at a lower current. The output terminals may be connectible with wire cables to a load, and the DC power converter is configured to reduce energy loss through the wire cables to the load.
Method for fabricating flexible solar panel module
A flexible solar panel module is provided having a plurality of non-flexible solar panels, a plurality of non-flexible covers and a flexible back sheet. Each of the non-flexible solar panels has a photoreactive device layer, a positive ribbon and a negative ribbon. The non-flexible covers correspond to the non-flexible solar panels respectively and are disposed on front surfaces of the non-flexible solar panels. Each of the non-flexible covers is bigger in size than each of the non-flexible solar panels. The flexible back sheet is disposed under back surfaces of the non-flexible solar panels and has a plurality of openings therein. A first water-resistant sealant is disposed between adjacent non-flexible covers and physically contacts the flexible back sheet. A second water-resistant sealant is disposed between the non-flexible covers and the flexible back sheet and covers sidewalls of the non-flexible solar panels. The non-flexible solar panels are laminated with the flexible back sheet and regions between adjacent non-flexible solar panels are flexible/bendable regions of the flexible solar panel module.
Method and apparatus for controlling vibration intensity according to situation awareness in electronic device
A method of controlling vibration is provided. The method includes determining whether the electronic device is located on a flat surface if a vibration event of an electronic device occurs, measuring a first noise signal level before driving a vibration motor by using a microphone of the electronic device if the electronic device is located on the flat surface, measuring a second noise signal level after driving the vibration motor at a minimum vibration intensity, and controlling a driving intensity of the vibration motor by comparing the first noise signal level and the second noise signal level. Accordingly, an excessive noise may be avoided if a portable terminal vibrates on a hard surface such as a desk.
Motor driving method, battery pack and semiconductor device
The present invention provides a motor driving method, a battery pack, and a semiconductor device capable of variable-controlling a bus voltage from a battery pack. A battery pack outputting a bus voltage to a positive voltage node using a negative voltage node as a reference, an inverter unit converting the bus voltage to AC voltage by switching according to a PWM signal and driving a motor, and a motor control unit generating the PWM signal are used. The motor control unit outputs a voltage instruction signal for instructing the bus voltage toward the battery pack. The battery pack variable-controls the number of cells coupled in parallel between the positive voltage node and the negative voltage node so as to obtain the bus voltage according to the voltage instruction signal.
Rotation angle estimation apparatus for rotating electric machine
A rotation angle estimation apparatus includes: a high-frequency voltage setting unit that sets high-frequency voltages; a circuit operating unit that operates an electric power conversion circuit to apply each of the high-frequency voltages to a corresponding one of winding groups of a rotating electric machine; and a rotation angle estimating unit that estimates a rotation angle of the rotating electric machine based on at least one of high-frequency currents that flow in the winding groups upon application of the high-frequency voltages to the winding groups. Moreover, the high-frequency voltage setting unit sets the high-frequency voltages based on the spatial phase difference between the winding groups so that in a fixed coordinate system of the rotating electric machine, the magnitude of a resultant vector of a plurality of high-frequency voltage vectors, which are respectively applied to the winding groups, becomes smaller than the magnitude of each of the high-frequency voltage vectors.
Linear motor apparatus and control method
This linear motor apparatus includes: a first linear motor and a second linear motor, movable bodies of which move in the same direction in a linked manner; a first control portion that causes the first linear motor to produce thrust to apply a load to a pressurizing target via the movable bodies; and a second control portion that causes the second linear motor to produce thrust and controls the thrust, wherein, if the first control portion is causing a load to be applied to the pressurizing target, then the second control portion causes the second linear motor to produce thrust that cancels an external force produced to the movable bodies.
Synchronous energy source switching controller and method of operation thereof
The present invention relates to a motor assembly, a method of operation thereof and a transport vehicle provided with the motor assembly. The motor assembly is provided with an energy source switching controller that is in synchronization with motor operation and provides an improved utilization of energy storage sources in an electric, hybrid electric, or fuel cell based motor vehicle drive train application.
Pre-alignment of synchronous loads prior to starting grid
Systems and methods for pre-aligning rotors of synchronous motors on a synchronous AC grid prior to startup of the motors are provided. A partial power converter may provide an alignment current through an n-phase supply line to a synchronous AC motor. The synchronous AC motor may be configured to receive polyphase AC power through the n-phase supply line from the synchronous AC grid, whereas the partial power converter is powered by a power source isolated from the synchronous AC grid. The alignment current may cause a rotor of the synchronous AC motor to move to and stop at a target angular position.
System and method for controlling the operating area of an inverter coupled to an alternative energy source
A system includes a controller programmed to control an inverter to supply a power grid with a maximum amount AC electrical power while operating within an operating area that is pre-defined based on hardware limitations of the inverter. The system allows the inverter to operate with a variable low-DC voltage input into the inverter as opposed to a preset threshold DC voltage, thereby maximizing the amount of power the inverter supplies to a power grid. The inverter controller operates by prioritizing the reactive power output by the inverter over the active power output by the inverter so that the inverter is able to generate an output that meets the reactive power command from a utility and supplies the maximum amount of active power.
Electric power conversion device
An electric power conversion device includes a capacitor package. The capacitor package includes a first positive electrode bus bar that is connected to a positive electrode of the inverter circuit unit and connected to a smoothing capacitor. The capacitor package also includes a second positive electrode bus bar that is connected to a positive electrode on a battery side of the converter circuit unit and connected to the another smoothing capacitor. On a first side thereof the negative electrode bus bar directly overlaps the entire first positive electrode.
Digital controller architecture for three-phase AC sources
Digital controller architecture for three-phase AC sources includes a phase accumulator, a command control, and a synchronization generator that are utilized to synchronize three controllers. Each controller provides the input to a separate power stage.
Transformer module, power reception device and power transmission device
A circuit module equipped with a primary coil of a step-down transformer formed by primary coils of a plurality of transformer elements connected in series with each other and a secondary coil formed by secondary coils of the transformer elements connected in series with each other, includes a printed substrate on which the transformer elements are mounted in a lengthwise direction, a connection terminal coupled to a first end of the primary coil of the step-down transformer and connection terminals coupled to the secondary coil of the step-down transformer, the connection terminals are positioned such that the transformer elements are interposed therebetween. As a result, provided are a transformer module that reduces the effect of a high-voltage portion on a low-voltage portion by securing a distance between the high-voltage portion and the low-voltage portion, and a power reception device and a power transmission device equipped with the transformer module.
HVDC converter system with transformer functions or arrangements integrated into a single transformer unit
An AC-AC converter system includes transformer arrangements and HVDC converter units on primary and secondary sides of the system, respectively. The system exhibits first and second three-phase AC networks, and the converter units are interconnected via a DC connection. By integrating at least part of two transformer arrangements in one transformer unit, a cost efficient transformer configuration can be achieved.
Insulation-type synchronous DC/DC converter
The synchronous rectifier controller is provided at the secondary side of the insulation-type synchronous DC/DC converter and controls the synchronous rectifier transistor. The controller is coupled to the output of the feedback photo coupler and drives the switching transistor according to the feedback signal. The synchronous rectifier controller includes a driver circuit and an abnormal detection circuit and is configured as a single module. The driver circuit drives the synchronous rectifier transistor. The abnormal detection circuit detects an abnormal condition in the secondary side of the DC/DC converter. FAIL terminal is coupled to notify outside of an occurrence of the abnormal condition.
Quasi-resonant operation of a power conversion circuit including switches symmetrically arranged about a transformer
A power system includes DC-DC power conversion circuitry that has a first switch and a second switch on either side of a transformer. An amount of power transfer from a primary side to the secondary side of the DC-DC power conversion circuitry is controlled based on an amount of on-time or off-time of the first switch. A power threshold is determined corresponding to a lowest amount of power transfer that results in soft switching of the second switch with a constant off-time of the first switch. The DC-DC power conversion circuitry is operated in a quasi-resonant mode when the amount of power transfer from the primary side to the secondary side of the DC-DC power conversion circuitry is less than the power threshold.
Constant voltage output circuit, flyback switching power supply and electronic device
A constant output circuit is disclosed that includes a power supply circuit, a LM-FOT control circuit, a switching circuit and a transformer. Output ends of the power supply circuit are respectively connected with a first input end of the LM-FOT control circuit and an end of a primary winding of the transformer. A controlling end of the LM-FOT control circuit is connected with a controlled end of the switching circuit. A second input end of the LM-FOT control circuit is connected with an output end of the switching circuit. An input end of the switching circuit is connected with the other end of the primary winding of the transformer. An end of a secondary line winding of the transformer is configured for outputting constant voltage signals. Another end of the secondary line winding of the transformer is grounded.
Power conversion device and method for correcting decision threshold level thereof
A power conversion device and a method for correcting decision threshold level thereof are disclosure. The method for correcting awaking-voltage of a power conversion device is provided. The method includes: fixing an output current of the power conversion module; monitoring a real decision threshold level of the power conversion module when the power conversion module departs from a burst mode; adjusting a preset decision threshold level based on the comparison between the real decision threshold level and the preset decision threshold level to make the preset voltage be equal to the real decision threshold level.
Control device for a quasi-resonant switching converter, and corresponding control method
A control device for a switching converter having a transformer, with a primary winding receiving an input quantity, a secondary winding providing an output quantity, an auxiliary winding providing a feedback quantity, and a switch element. The control device has a processing module for generating a control signal for switching the switch element on the basis of the feedback quantity in order to regulate the output quantity via alternation of phases of storage and transfer of energy. The processing module controls the end of the transfer phase by comparing the feedback quantity with a comparison threshold. A discrimination circuit generates a signal for discrimination between the presence of a short circuit on the output or the fact that the input quantity is lower than a threshold. The processing module controls the end of the energy-transfer phase also on the basis of the discrimination signal.
Master-slave digital voltage regulators
Described is an apparatus which comprises: a first bridge to be coupled to a first load; a first Pulse Width Modulation (PWM) circuit to drive the first bridge; a second bridge to be coupled to a second load; and a second PWM circuit to drive the second bridge, wherein the first PWM circuit is controlled by a first digital word separate from a second digital word, wherein the second PWM circuit is controlled by the second digital, and wherein the second digital word is derived from the first digital word.
Current threshold detection in synchronous regulation
A synchronous regulator controller, including a synchronous switch that is coupled between a first node and a second node. The controller also includes a first voltage divider that includes a first resistive device that is coupled between the first node and a third node, and a second resistive device that is coupled between the third node and a second node. The controller also includes a comparator having a first input that is coupled to the first node, and a second input that is coupled to a forth node. The controller also includes a current source that is arranged to provide a current to the fourth node. The controller also includes a third resistive device that is coupled between the third node and the fourth node.
Power conversion device
A system for supplying a load comprising: an input inductor configured to receive an input voltage, a selection module connected to the inductor via a switching node, and a multi-level half-bridge stage comprising a plurality of half-bridge stages, each half-bridge stage comprising a pair of switches connected between a switching node; a power combining stage coupled to each half-bridge stage using parallel bus voltage lines output from the multi-level half-bridge stage, the power combining stage configured to output a voltage to the load; and a controller configured, based on the input voltage, to selectively control a half-bridge stage to operate in a half-bridge mode to provide a stepped-up voltage on a bus voltage line, wherein the controller is further configured to control the power combining stage to provide a voltage between the bus voltage lines and the sum of these voltages is higher than a peak of the input voltage.
Static VAR compensator apparatus and operating method thereof
A static varr compensation apparatus including: a plurality of capacitor banks supplying three-phase alternating current (AC) power; a plurality of bidirectional thyristors opening and closing the plurality of capacitor banks; and a controller calculating an amount of reactive power necessary to be compensated and controlling the plurality of bidirectional thyristors to open and close the plurality of capacitor banks in correspondence to the calculated amount of reactive power, wherein the plurality of capacitor banks are in a structure of Y connection.
Method for producing stator
A method that can produce a high-performance stator by providing only an upper or lower fixed piece for latching a coil on an insulator and thus effectively suppressing loosening of the coil winding wire when resin is injected while improving the production efficiency of the insulator. The method includes producing an intermediate by disposing a coil around an insulator, which includes a tubular portion, a flange at one end thereof, and a fixed piece that, when the insulator is loosely fit around the tooth, extends in the radial direction of the tooth from an end side of the flange corresponding to an upper or lower end face of the tooth, and has a coil latching claw, and loosely fitting the insulator with the coil around the tooth; and placing the intermediate in a die and injecting resin from around a region where the coil is latched by the fixed piece.
Motor cooling systems and devices
A motor cooling system for cooling a motor unit including a stator assembly and a rotor assembly configured to rotate a rotor shaft, which includes a stator casing and an arm casing. The stator casing includes a stator casing body having a stator casing wall with an internal cavity to receive the motor unit and a rib with a groove defined between adjacent portions of the rib. The arm casing includes an arm casing body having an internal cavity to receive the stator casing and a port in fluid communication with the groove.
Containing casing for a stator of an electric machine and stator assembly using said casing
A containing casing for a stator of an electric machine defines, around said axis, a compartment to house the stator. A first radially inner part and a second radially outer part are coupled to one another and define together at least one duct surrounding the axis for the passage of a cooling fluid. Said duct comprises, in turn, a plurality of first sections and a plurality of second sections, which are distributed around the axis alternated with one another. The first sections are arranged around the axis with an arrangement that supports the motion of the fluid around the axis. The second sections are transverse to the first sections and at least partially obtained inside respective protuberances of the first radially inner part, which project towards the inside of the compartment. A space for the insertion of radially projecting portions of electric windings of the stator is defined between two consecutive protuberances around the axis.
Electronically commutated dc motor, in particular for an oil pump
An electronically commutated DC motor has a stator wound with a multi-phase stator winding, a permanent magnet rotor mounted rotatably about a motor axis, a circuit board, a guide plate electrically connected to the winding and a housing component. In one implementation, a DC motor can easily be manufactured with the fewest possible process steps, which exhibits a short axial length and a low weight as well as good heat-dissipation properties. It is also an object of the invention to create a DC motor with integrated electronics, whose motor interior can be filled with oil, and which holds the electronics sealed against this oil. For reasons of logistics, an attempt is also made for partial components, such as the electronics, to be designed such that they are capable of complete prior assembly and testing.
Outer rotor type brushless motor
An outer rotor type brushless motor of the present invention comprises: a rotor portion having a rotor frame, a shaft, and a rotor magnet; a bearing housing; a stator portion facing the rotor magnet and having a stator core, a plurality of first salient pole portions extending toward the rotor magnet from the stator core, an insulation surrounding the first salient pole portion, and a winding around the first salient pole portion through the insulation; and a torque holding portion provided on an inner side of the outer circumference portion of the rotor frame and an outer circumference of the bearing housing, and having a plurality of second salient pole portions disposed coaxially with the stator core and extending toward the rotor magnet, where the first salient pole portions and the second salient pole portions are provided in different numbers.
Systems and methods for constructing laminations for electric motors
Systems and methods for the construction of components such as laminations for the stator core of an ESP motor wherein particles of different materials are mixed and pressed together at an elevated temperature to form a composite material in the desired lamination shape. The materials are selected to provide characteristics such as high magnetic permeability from one material and high thermal conductivity from the other material. The particles of the different materials are pressed together at a temperature that is sufficiently high to fuse the particles together and form a composite material, but is also sufficiently low that the materials are not sintered. The individual materials therefore retain their original characteristics, and the composite material benefits from the high magnetic permeability of the first material and the high thermal conductivity of the other material.
Wireless power transfer apparatus
A power sending loop coil disposed in a power sending device takes out electric energy from DC power and generates periodically-varying electromagnetic field resonance energy in a space. A power receiving loop coil disposed in a power receiving device takes out, as electric energy, the periodically-varying electromagnetic field resonance energy from the space and supplies electric power to a load. The power sending loop coil and the power receiving loop coil are coupled to each other through electromagnetic field resonant coupling, whereby electric power is wirelessly transferred from the power sending device to the power receiving device.
Solar power generation, distribution, and communication system
A solar panel is disclosed that can be daisy-chained with other solar panels. The solar panel automatically generates output alternative current (AC) power that is in parallel with input AC power coming into the solar panel when the solar panel senses the input AC power so that the solar panel operates as a slave in this state. The solar panel automatically generates standalone AC output power when the solar panel fails to detect input AC power coming into the solar panel where the solar panel operates as a master in this state. The solar panel generates the standalone output AC power without any reliance on input AC power generated by a utility grid and/or other AC power sources external to the solar panel.
Grid tie charge controller
A system extracts power from a typical high voltage (200-500 vdc) grid tie solar system and deliver it to a low voltage (12-24 vdc) battery bank. This product parallel connects in between an existing grid tie solar array, and an existing grid tie inverter, transforming the voltage down, and acting as a charge controller, engaging and disengaging as necessary to keep the low voltage battery bank at a high state of charge. This system enables the grid tie PV array to have a second use as the energy source for a low DC voltage off grid system. This system, when combined with standard low DC voltage grid inter-active off grid inverter/charger, and a battery bank, forms a complete off grid system, while allowing the host grid tie system to function normally when the grid is on.
Solar charging of multiple battery banks
A power management and selection system for a class 8 tractor trailer, directs excess solar and vehicular charge capacity to an auxiliary load by measuring available charge capacity from a reefer power system including a reefer battery, solar panel and charge controller for moderating solar power to the reefer batter, and measuring available charge capacity from a cab vehicle power system including a propulsion system battery and alternator. Charge logic, in a selector configured for switching charge capacity to the auxiliary load, determines which of the reefer power system and cab vehicle power system has the most potential excess charge capacity, and directs the determined excess charge capacity to the auxiliary load, while the measured available charge capacity remains sufficient for powering the respective reefer power system or cab vehicle power system.
Battery pack for wirelessly charging two or more devices
A rechargeable battery pack includes a housing, one or more rechargeable batteries contained in the housing, a first inductive coil, a second inductive coil, and electrical circuitry. The first inductive coil is configured for inductively transferring first electrical power from the one or more rechargeable batteries to a first electronic device through a first wireless charging interface according to a first charging interface protocol. The second inductive coil is configured for inductively transferring second electrical power from the one or more rechargeable batteries to a second electronic device according to a second charging interface protocol that is different than the first charging interface protocol simultaneous to the transferring of the first electrical power to the first electronic device. The electrical circuitry is configured for driving the first inductive coil and the second inductive coil for inductively transferring the electrical power to the first and the second electronic devices.
Single structure multi mode antenna for wireless power transmission using magnetic field coupling having an internal switch circuit
Various embodiments of a single structure multiple mode antenna are described. The antenna is preferably constructed having a first inductor coil that is electrically connected in series with a second inductor coil. The antenna is constructed having a plurality of electrical connections positioned along the first and second inductor coils. A plurality of terminals facilitates connection of the electrical connections thereby providing numerous electrical connection configurations and enables the antenna to be selectively tuned to various frequencies and frequency bands. An internal switch circuit is provided that facilitates electrical connection of the various terminals and frequency tuning.
Voltage supply compensation
A power supply circuit can be configured to generate a supply voltage that provides power to the apparatus. A signal generation circuit can be configured to generate a radio frequency (RF) charging signal. An amplification circuit can be configured to amplify the RF charging signal using the supply voltage and to present the amplified charging signal to a power transmitting coil for transmission of wireless power to a remote device. A communication circuit can be configured to detect amplitude variations in the RF charging signal; detect variations in a voltage level of the supply voltage; adjust the detected amplitude variations in the RF charging signal to compensate for detected variations in a voltage level; and decode data represented by the amplitude variations in the RF charging signal based upon the adjusted amplitude variations.
Smart battery charging to improve the lifespan of batteries
A method for managing a rechargeable battery. The method includes a computer processor identifying a rechargeable battery within a first device. The method further includes a computer processor identifying a battery maintenance policy associated with the rechargeable battery. The method further includes a computer processor determining a first set of models for implementing the identified battery maintenance policy on the identified rechargeable battery based on the identified battery maintenance policy and one or more environmental factors corresponding to the first device. The method further includes a computer processor installing the first set of models in the first device. The method further includes a computer processor performing an intervention action based, at least in part, on a current state of the first set of models and one or more current environmental factors corresponding to the first device.
Recharging platform for electronic devices
An apparatus has connectors to receive batteries. A power multiplexer is connected to the connectors. A processor is connected to the power multiplexer to execute a battery charge protocol including the operations of selecting at least one battery for charging, where the at least one battery is in a fast charge state that allows for substantially linear charge performance. Direct current is applied to the battery until the fast charge state is terminated. The selecting and applying operations are repeated until the fast charge state is terminated in each of the batteries. Direct current is then directed to the batteries until a full charge state is reached for each of the batteries.
A method of processing power in an electrical device, and an electrical device embodying this method, are both disclosed. A primary conducting element is connected with a secondary conducting element in a first parallel circuit. A current supply inlet and a primary load outlet are connected in series with the secondary conducting element, wherein the primary conducting element contains reverse current induced by the secondary conducting element in use. A secondary load outlet is connected with the primary conducting element in a second parallel circuit. A switching means is located in the first parallel circuit and switched between a first position for closing the primary conducting element to directly supply current from the current supply inlet to the secondary load outlet, and a second position opening the primary conducting element to direct reverse current from the primary conducting element to the secondary load outlet.
Tripolar VSC-HVDC transmission system and method
A tripolar VSC-HVDC system and method include a rectifier and an inverter formed by a three-phase six-bridge arms modular multilevel converter (MMC) respectively, and two converter valves are arranged on the DC side of the rectifier and inverter respectively. The midpoint of upper and lower converter valves of the rectifier and inverter are connected with a pole 3 DC line by a smoothing reactor. Triggering of the upper and lower converter valves is controlled to change the DC voltage polarity of the pole 3 periodically, and tripolar DC transmission is realized by modulating current orders of the three poles.
Electrical device with a load manager that communicates with appliances and an electric utility
A home appliance can operate in a future time frame. Information is obtained from a power distributor in order to determine a time when to operate the home appliance in this future time frame. The home appliance then operates at the time determined with information from the power distributor.
Fault tolerance control strategies for multi-kite power generation system
A power distribution system includes at least a ground power unit, an aerial vehicle, and a power station. The ground power unit is configured to convert an input AC power into DC power output, wherein the ground power unit includes at least a first bus, second bus, and a third bus, wherein the first bus is configured to operate at a first voltage level referenced to the third bus, and wherein the second bus is configured to operate at a second voltage level referenced to the third bus that is different from the first voltage level. The aerial vehicle may include a plurality of motor-generators coupled to a respective plurality of turbines, wherein the plurality of motor-generators may be configured to be energized by power received from a tether. The power station may be electrically coupled to at least the first bus, the second bus, and the tether and configured to: (i) selectively energize the tether using the first bus; and (ii) responsive to detecting a fault by at least one motor-generator of the plurality of motor-generators, selectively energize the tether using the second bus and not the first bus.
Method for providing control power to stabilize an alternating current network, using an energy accumulator
The present invention relates to a method for providing control power to stabilize an AC electrical grid, comprising an energy store which can take up and emit electrical energy, wherein for the purpose of providing the control power, the energy store is used together with a differential power provider, wherein the AC electrical grid operates at a predefined frequency and a frequency band around the predefined frequency is defined and the control power to be provided in the case of a frequency deviation within the frequency band is provided by the energy store to the extent of more than 50%, relative to the total control power to be provided.
DC circuit breaker device
In a DC circuit breaker device, first and second semiconductor switches are connected in series on a main circuit line such that current-carrying directions of the switches are opposite to each other. A first diode is connected in anti-parallel with the first semiconductor switch, and a second diode is connected in anti-parallel with the second semiconductor switch. First and second mechanical circuit breakers are connected in series with each other and in parallel with the whole of the first and semiconductor switches. First and second backward current generation circuits are connected in series with each other and in parallel with the whole of the first and second mechanical circuit breakers. An injection switch is connected between a node between the first and second mechanical circuit breakers and a node between the first and second backward current generation circuits.
Protection of a power supply including a plurality of batteries in parallel against an external short circuit
An electrical installation includes a circuit-breaker having a breaking capacity PdC and a tripping current Is, an ammeter measuring the current, and a DC voltage source comprising batteries connected in parallel and connected in series with the circuit-breaker. The sum of the short-circuit currents of the batteries connected in parallel is higher than the breaking capacity PdC of the circuit-breaker. A plurality of the batteries each includes a respective switch capable of opening a connection between the battery of the same and the circuit-breaker. The electrical installation also includes a control circuit to detect that the current passing through the circuit-breaker is higher than the tripping current Is and to control the opening of a plurality of the switches in order to apply, through the circuit-breaker, a current higher than the tripping current Is of the same and lower than the breaking capacity PdC of the same.
Electric-wire protection device
An electric-wire protection device protects at least one electric wire among an electric-wire bundle that bundles a plurality of electric wires that are used to supply power to a plurality of loads from a power source Ba. Calculation circuit calculates an increased temperature of the electric wire from an initial temperature at the time that the estimate begins, based on a load current Is that has been detected and a thermal characteristic of the electric wire, and estimates the temperature of the electric wire by adding the increased temperature to the initial temperature. Current flow information supply portion supplies to the calculation circuit current flow information related to current flow to a load other than a subject load. Calculation circuit corrects the initial temperature by a correction value that corresponds to the current flow information that exists at the time the estimate begins.
DC circuit breaker and circuit breaking method of the DC circuit breaker
Disclosed embodiments relate to a DC circuit breaker and a circuit breaking method thereof which comprises: a measuring portion for measuring a DC current conducted through a first circuit portion; the first circuit portion for conducting and blocking the DC current; and a second circuit portion for conducting and blocking the DC current which is bypassed from the first circuit portion and controlling the open/close operation of the first circuit portion according to a measuring result of the measuring portion, wherein, in the first circuit portion and the second circuit portion, switching elements, which are included in each of them, are connected in a parallel configuration such that a high switching operation during a blocking operation can be improved and the DC current can be blocked in a safer and more efficient manner, and a circuit breaking method of the DC circuit breaker.
Cable sealing unit with multiple sealing modules
A sealing unit (28) that fits within the sealing unit opening (26) of a housing 22. The sealing unit (28) including a sealant arrangement (32) that define a plurality of cable ports (30). The sealing arrangement is also configured for providing a peripheral seal between the housing (22) and the sealing unit (28). The sealing unit (28) includes an actuation arrangement (31) for pressurizing the sealant arrangement (32) within the sealing unit opening (26). The sealant arrangement (32) includes a plurality of sealing modules (33a-33e) each sized to form only a portion of the pressure actuated sealant arrangement (32).
Cable spacer clamp arm liner
A liner for use with a cable spacer clamp arm is provided. The liner includes a first portion formed in an arcuate configuration and made from a first elastomeric material. A second portion is formed in the arcuate configuration and is receivable within the first portion. The second portion is made from a second elastomeric material different from the first elastomeric material. The first portion attaches to the second portion.
Quick-connect electrical junction boxes and methods
Provided herein in some embodiments is an quick-connect electrical junction box including a front cover, a bus module, and a back cover configured to fit together and form the quick-connect electrical junction box. The front cover can include a front face including a number of sockets configured to accept a number of prongs of one or more electrical accessory modules. The front cover can also include a back face including a number of clamp tunnels corresponding to the number of sockets. The bus module can include a front face including a bus assembly fixed to the bus-module front face, wherein the bus assembly can include a number of clamps correspondingly disposed in the number clamp tunnels. The bus module can also include a back face including a number of bus assembly-connected wire lugs fixed thereto for wiring the quick-connect electrical junction box to a circuit breaker or another quick-connect electrical junction box.
Rack pulley system
A removable rack pulley system is provided. The removable rack pulley system is detachably connected to a rack and is employed to adjust cables that are associated with equipment stored in shelves of the rack. The rack pulley system includes a cable-run assembly and a locking mechanism. The locking mechanism includes a pressure-actuated locking pin to adhere and release calipers that attach the rack pulley system to the rack. The cable-run assembly uses a multi-length shaft that is integrally connected to the locking mechanism. The multi-length shaft is configured to receive multiple spools of cable to allow various types and sizes of cables to be simultaneously pulled through the rack pulley system while retaining separation of the cables during adjustment of cables. The spools are secured in the cable-run assembly by a holding wire that detachably connects to an end of the multi-length shaft.
Circuit breaker arrangement
A circuit breaker arrangement is disclosed. It comprises a cart (1) on which slides a circuit breaker. A lead screw (14) drives the circuit breaker along a linear path by moving a drive block (15), an upper protuberance (211) of which engages the circuit breaker. The arrangement provides for an automatic uncoupling of the circuit breaker at an end position of the drive block (15), where a handle inserted into a hole (24) may turn an end of the lead screw and rock the drive block with a meshing mechanism (43) so that the protuberance (211) escapes the circuit breaker. It is therefore very easy to mount, dismount or replace the circuit breaker. A similar advantage based on unlatching an interlock may be obtained for dismounting the electrical motor (12) that normally drives the lead screw (14). The invention can well take place in the medium voltage industry.
A spark plug includes an insulator, a metal shell surrounding the insulator, a center electrode disposed in the insulator, with a front end thereof exposed outside from the insulator, a ground electrode having a fixed end portion fixed to the metal shell and a free end portion located at a predetermined gap apart from the center electrode, and a coating part formed of noble metal or noble metal alloy so as to cover at least a region of an inner surface of the ground electrode from a first intersection to a second intersection, where the first intersection is an intersection at which an imaginary line extending from an outer circumference of the center electrode intersects the ground electrode; and the second intersection is an intersection at which an imaginary plane extending through a midpoint of the predetermined gap in parallel with the front end intersects the ground electrode.
A spark plug that includes a center electrode and a ground electrode. The center electrode is disposed providing a gap with the center electrode. At least one of the center electrode and the ground electrode includes a tip forming the gap. The tip includes a main body portion and a front surface layer. A composition of the main body portion is Pt as a main constituent and Rh of 5 mass % or more and Ni of 0 mass % or more to less than 8 mass %. The front surface layer is disposed at least at a surface radially outside of an axial line extending in a direction from a center of the main body portion to the gap. The front surface layer contains Ni of 8 mass % or more and has a thickness of 2 μm or more.
A spark plug for an internal combustion engine includes a cylindrical metal shell, a center electrode, and a ground electrode. The center electrode has an end portion which protrudes outside an end of the metal shell. The ground electrode is joined at an end thereof to the metal shell and has an inner surface facing the end portion of the center electrode. The ground electrode has a maximum width W meeting a relation of 1.3≤W≤2.0. A distance d between the center of an end surface of the center electrode and the inner surface of the ground electrode on a plane extending through the center of the center electrode perpendicular to an axis of the spark plug is selected to meet a relation of W+0.525≤d≤1.07W+0.66. This ensures the stability of ignitability of the spark plug.
Semiconductor light-emitting device with an axis of symmetry
The present invention proposes a semiconductor light-emitting device having an axis of symmetry, the device including two or more laser diodes, each of the laser diodes has an axis of symmetry, wherein the laser diodes are arranged in series on the axis of symmetry of the light-emitting device in such a way that their axes of symmetry coincide, wherein faces of the laser diodes are connected so that they are in electric and mechanic contact and form a bar of the laser diodes, a directional pattern of radiation thereof has an axis of symmetry coinciding with the axis of symmetry of the light-emitting device. The proposed light-emitting device can be used in laser lamps of white light for exciting phosphors since it provides a high degree of flare of cylindrical surfaces.
Semiconductor laser light source and fabrication method
A semiconductor laser light source includes a semiconductor substrate formed of a first conductivity type semiconductor material, a lower cladding layer formed of the first conductivity type semiconductor material on the semiconductor substrate, a waveguide layer on the lower cladding layer, and an upper cladding layer formed of a second conductivity type semiconductor material on the waveguide layer. The waveguide layer includes a core area and rib areas thinner than the core area on either side of the core area. The core area has a quantum dot active layer, and the rib areas have no quantum dot layer. The waveguide layer forms a laser part having the core area with a constant width and a spot size converter having the core area with a taper width from a side adjacent to the laser part toward an end of the spot size converter.
Diffraction grating for laser pulse compression and laser device
A pulse compressor for compressing a laser pulse in a laser device using a chirped pulse amplification method includes two identically shaped diffraction gratings arranged parallel to each other with their respective grating surfaces facing each other and a total reflection mirror for receiving a laser pulse through the diffraction grating and returning it back to the same gratings. Each diffraction grating is a reflective blazed diffraction grating having grooves with a sawtooth-shaped section covered with a reflective Au coating on their surface, with the blaze angle determined so that, at the wavelength of the laser pulse to be used, the incident angle of a laser pulse entering the pulse compressor and first order diffracted light form a relationship of mirror reflection with the groove slope and so that a predetermined level of diffraction efficiency is obtained. Since the laser pulse impinges on the grating at substantially right angles to the groove slope, a high level of damage threshold is obtained and a high-power laser pulse can be generated.
Method for routing a conductor across a terminal block
A terminal block for an apparatus includes at least one terminal conductor having a first end that extends to a second end. The first end includes a first connection portion and the second end includes a second connection portion. A non-electrically conductive member covers the at least one terminal conductor. The non-electrically conductive member includes a body having a first end section arranged at the first end extending through an intermediate section to a second end section arranged at the second end. The first end section includes a first opening exposing the first connection portion, and the second end portion includes a second opening exposing the second connection portion. The body further includes a conductor routing system having at least one conductor routing member configured and disposed to restrain and guide a conductor member across the at least one terminal conductor.
The embodiments of disclosure disclose a welding tray, which includes a tray frame (18) and a supporting device (16), wherein the supporting device (16) includes a supporting component and an adjustable connecting component, the supporting component includes a supporting surface, the adjustable connecting component connects the supporting component to a side edge of the tray frame (18), and a distance between the supporting surface and a bearing surface of the tray frame (18) is adjustable.
A composite connector includes a first tongue, a second tongue, and multiple terminal units respectively arranged on the first tongue and the second tongue. Each of the terminal units includes four terminals independent from each other, which are respectively two non-high-speed differential signal terminals and a pair of high-speed differential signal terminals located between the two non-high-speed differential signal terminals. Terminals in each terminal unit are made of a same metal plate and are located on a same plane. There is no other terminal between adjacent two terminal units. A non-high-speed differential signal terminal of one terminal unit is adjacent to a non-high-speed differential signal terminal of an adjacent terminal unit.
Apparatus for a shielded F-connector
An improved F-connector can be mounted perpendicularly on a printed circuit board to reduce radiated emissions by using an integrated shield flange on the F-connector body. The improved F-connector is attached to a shield frame that is part of an RF shield containment box mounted on the printed circuit board. In one embodiment, the shield flange is integral to the improved F-connector body and is manufactured to fill the gap between an RF shield frame and a corresponding RF shield cover. The improved F-connector with integral shielding flange mounted on the shield frame utilizes the shield flange of the improved F-connector to fill the physical gaps between the shield cover the improved F-connector. With reduced or eliminated physical gaps, the radiated emission of the assembly are either reduced or eliminated.
Adapter with an electronic filtering system
An adapter includes a first plug with at least one electrically conductive prong, a first socket shaped to make an electrical connection when a second plug is secured to the first socket, an electrically conductive pathway that connects the first plug with the first socket, and a filtering mechanism disposed along the electrically conductive pathway that modifies an electrical waveform signature sufficient that it avoids nuisance tripping by an arc fault detector when the electrically conductive pathway provides electrical power to an electrical load.
Connector having short circuit terminal
A connector includes: a housing; terminals inserted in the housing from a first side of the housing; a short circuit terminal inserted in the housing from a second side of the housing, having contact pieces configured to contact the terminals respectively, and connecting the terminals to each other; and a front holder attached to the housing from the second side of the housing, configured to retain the terminals in the housing, and having a displacement portion. The displacement portion of the front holder attached to the housing displaces the contact pieces of the short circuit terminal inserted in the housing with the terminals not inserted in the housing, by a prescribed distance in a direction of separating the contact pieces from the terminals.
Catch structure of latch for connector
A catch structure useful for electrical connectors has a main latch arm having two arms and a crossbar in an H shape, connected to a housing, with a primary depression surface on the ends of the arms and a beam protruding from the crossbar having a female catch. The female catch can engage with a corresponding male catch on a mating housing. Depressing the primary depression surface can disengage the catch. The catch structure can be used on hermaphroditic or non-hermaphroditic connectors and is of use in automotive applications.
Wire mount electrical connector
An electrical connector includes an insulative connector housing including a longitudinal body portion and first and second pairs of opposing end portions. The body portion has a plurality of contact openings extending therein in an insertion direction for supporting a plurality of electrical contact terminals. The first and second pairs of opposing end portions extend from opposing ends of the body portion in the insertion direction. At least one end portion in each pair of opposing end portions includes a ridge extending in the insertion direction for guiding a cover latch along a side surface of the ridge and guiding a strain relief latch along an opposing side surface of the ridge. The ridge has an inclined top surface for resiliently deflecting a cover latch and an inclined side surface for resiliently deflecting a strain relief latch. The ridge has an end portion for latching onto a cover latch and a strain relief latch.
A connector (F) includes an inner housing (11). Terminal fittings (72) are fixed to front end parts of wires (71) and are inserted into the inner housing (11) from behind. An outer housing (37) is held out of contact with the terminal fittings (72) and is mounted relatively displaceably with respect to the inner housing (11). Vibration damping rings (64) are fit externally on the wires (71) in a state out of contact with the inner housing (11), and are held resiliently in contact with the outer housing (37).
A wire cover (70) is arranged to cover a rear surface of a mat seal cover (50) and includes a lock (78) to be locked to a lock receiving portion (27) of a housing (10). The lock receiving portion (27) is arranged at a position corresponding to a lever (90) covering an outer surface side of a peripheral wall (24) of an accommodating recess (23). The lock (78) is locked to the lock receiving portion (27) from an inner surface side of the peripheral wall (24) of the accommodating recess (23). The mat seal cover (50) has an assembling detection surface (55) with which the lock (78) moving toward the lock receiving portion (27) comes into contact when the mat seal cover (50) is in a semi-assembled state without being locked to the housing (10).
A waterproof connector includes a housing made of an insulating resin, and a conductive member formed integrally with the housing, the conductive member having a connector connecting section exposed from the housing, a board connecting section exposed from the housing, and a fixed section connecting embedded in the housing, a waterproof shaped section for blocking entry of water along an interface between the fixed section and the housing being formed at a surface of the fixed section, the waterproof shaped section having a protrusion that protrudes outwardly from the surface of the fixed section and a groove that is adjacent to the protrusion and is dented inwardly from the surface of the fixed section, with a top of the protrusion and a bottom of the groove adjacent to the protrusion being connected by a barrier surface inclined or perpendicular to the surface of the fixed section.
Power receptacles and associated methods of assembly
Power receptacles with cover with an electrical outlet and a base attached to the cover. The base includes a plurality of spaced apart electrical contacts under the electrical outlet. At least one of the cover or the base includes at least one internal attachment member that cooperates with a receiving channel in the other of the cover or the base to frictionally attach the cover and base together. The at least one attachment member can be a plurality of such members and one or more can include ribs, optionally crush ribs.
A connector for a cable assembly includes a shell, a contact housing, and multiple finger clips. The contact housing is held in a chamber of the shell. The contact housing defines contact cavities extending through the contact housing between front and rear ends thereof. The finger clips are held in the contact cavities. The finger clips have deflectable latches. The contact cavities of the contact housing are configured to removably receive electrical contacts therein through the rear end. The deflectable latch of the finger clip in the corresponding contact cavity is configured to engage a retention shoulder of the electrical contact to removably secure the electrical contact in the contact cavity. The electrical contacts held in the contact housing are configured to mate with corresponding mating contacts of a mating connector.
Low-profile power and data contacts
Contact structures that are readily manufactured, where contacts in the contact structures consume a minimal amount of surface area, depth, and volume in an electronic device.
Device for receiving a data carrier and a data carrier set for arranging in an object
A device for receiving a data carrier has a receiving body that has a receiving region with a circular-cylindrical cross-section, wherein the receiving region has a circular opening on one end of the receiving body that corresponds to the cross-section of the receiving region, a data carrier which is arranged at least partially in the receiving region, and a circular-cylindrical fixing pin that is arranged on the other end of the receiving body.
USB type connector having structurally integrated components
An electrical plug connector includes a metallic shell, an insulated housing, a grounding plate, a first terminal module, a second terminal module, and a molding block. The first terminal module includes first plug terminals and a first combining block. The second terminal module includes second plug terminals and a second combining block. The insulated housing is received in the metallic shell. The first and the second combining blocks are respectively combined with the first plug terminals and the second plug terminals by insert-molding techniques. Then, the first combining block and the second combining block are respectively assembled to the grounding plate. Next, the molding block is provided to combine the first combining block with the second combining block, so that an assembly of the first terminal module, the second terminal module, and the grounding plate can be firmly assembled to the rear of the insulated housing.
A superluminal antenna element integrates a balun element to better impedance match an input cable or waveguide to a dielectric radiator element, thus preventing stray reflections and consequent undesirable radiation. For example, a dielectric housing material can be used that has a cutout area. A cable can extend into the cutout area. A triangular conductor can function as an impedance transition. An additional cylindrical element functions as a sleeve balun to better impedance match the radiator element to the cable.
Antenna assembly and electronic device including the same
An antenna assembly applied in an electronic device with a metal cover, includes a dielectric body, a first radiating element and a second radiating element. The metal cover opens a fastening groove. The dielectric body is fastened in the fastening groove. The first radiating element is mounted to an inner surface of the dielectric body. The first radiating element has a feeding portion. The second radiating element is mounted to an outer surface of the dielectric body and without being electrically connected with the metal cover. The second radiating element is abreast with and adjacent to the first radiating element in an outside-to-inside direction. The first radiating element is coupled with the second radiating element to receive and send electromagnetic wave signals. The electronic device includes the metal cover and the antenna assembly.
Loop antenna for mobile handset and other applications
There is disclosed an antenna system for mobile handsets and other devices. The antenna system comprises a dielectric substrate having first and second opposed surfaces, a conductive track on the substrate, and a separate, directly driven antenna to drive the parasitic loop antenna formed by the conductive track. Two grounding points are provided adjacent to each other on the first surface of the substrate, with the arms of the conductive track extending in generally opposite directions from the grounding points. The conductive tracks then extend towards an edge of the dielectric substrate, before passing to the second surface of the dielectric substrate and then passing across the second surface of the dielectric substrate following a path generally following the path taken on the first surface of the dielectric substrate. The conductive tracks then connect to respective sides of a conductive arrangement formed on the second surface of the dielectric substrate that extends into a central part of a loop formed by the conductive track on the second surface of the dielectric substrate.
Antenna apparatus with an integrated proximity sensor and methods
Wireless wide area network (WWAN) antenna with integrated sensor and methods of using the same. In one embodiment, an antenna subsystem and proximity sensing subsystem share a grounded antenna component/parasitic element. The parasitic element can be used to broaden the operating band of the antenna feeding component and provide an input (via a capacitance change) to a proximity sensor. The parasitic element is, in one embodiment, coupled in parallel to the proximity sensor allowing for a reduction in noise due to increased isolation between the antenna subsystem and the sensing subsystem.
An antenna module includes a radiation unit, a ground unit and an electrostatic protection unit. The radiation unit includes a metal element and a substrate. The metal element is disposed on a surface of the substrate. The ground unit is disposed on another surface of the substrate. The electrostatic protection unit is disposed in the substrate and connected between the metal element and the ground unit.
A balance antenna capable of directly receiving an unbalanced signal includes a pair of radiating units symmetrical with respect to a symmetrical axis. Each radiating unit includes a high-frequency radiating part and a low-frequency radiating part. The high-frequency radiating part includes a frame, a feed-in arm extending from the frame and parallel to the symmetrical axis and having a feed-in point at a distal end thereof, and an enhancing arm extending from the frame and incline relative to the feed-in arm. The low-frequency radiating part extends from the frame and partially around the high-frequency radiating part, and is bent toward the feed-in arm. The low-frequency radiating part has a distal free end close to the feed-in point.
A laminated antenna includes a bases board having a grounding port and a feed-in port, a feed-in portion on the base board, a dielectric layer, a conductive layer, and a second winding portion. The feed-in portion has opposite first and second ends. The first end is connected to the feed-in port. The dielectric layer has a covering surface covering the feed-in portion and an assembling surface. The conductive layer is on the assembling surface. The conductive layer includes a main radiation portion, an extension radiation portion, and a first winding portion. A segment of the main radiation portion is overlapped with the second end to form a coupling capacitor. The first winding portion is extending between the main radiation portion and the extension radiation portion to form a first inductor. The second winding portion is connected between the main radiation portion and the grounding port to form a second inductor.
An electronic device includes a main body, a baseboard, a ground portion, and a frequency selected ground (FSG) circuit. The baseboard is received in the main body and is spaced from the main body. The baseboard and the main body together forms a gap and the baseboard includes a feed point for feeding current to the main body. The ground portion is grounded and electrically connects the main body to the baseboard. The ground portion covers a portion of the gap to form a grounding area and a non-grounding area. One end of the FSG circuit is electrically connected to the main body and another end of the FSG circuit is grounded. The FSG circuit includes a plurality of inductors and/or capacitors. The FSG circuit has different impedances in response to the electronic device working at different frequency bands.
An antenna stack and device is described. In an embodiment, a device comprises: a first antenna element coupled to a first antenna feed, the first antenna feed being coupled to a first feed line via a first impedance matching circuit; a second antenna element coupled to a second antenna feed, the second antenna feed being coupled to a second feed line via a second impedance matching circuit; and a radio frequency (RF) switch configurable into states; wherein in a first state, the switch is configured to ground the first antenna feed; in a second state, the switch is configured to be in a non-connection state, wherein neither the first antenna feed nor the second antenna feed is grounded; and in a third state, the switch is configured to ground the second antenna feed.
Mobile terminal with new type of antenna structure
A mobile terminal with a antenna structure applicable to the field of communications equipment technologies, where the antenna structure includes a metal rear cover, a first slot which is disposed on the metal rear cover, and connects with the metal rear cover through one end, a second slot and a third slot which are disposed on the metal rear cover, and located on opposite sides of the first slot, and connects with the first slot through one end, and the metal rear cover includes a rear cover which is located on one side of the second slot and the third slot, and an antenna part located on the other side of the second slot and the third slot, and the antenna part includes a first antenna part located on one side of the first slot and a second antenna part located on the other side of the first slot.
System and method for a directional coupler
In accordance with an embodiment, a method of operating a directional coupler includes determining a coupled power variation by applying an input signal at an input port of the directional coupler, applying a first impedance at a transmitted port of the directional coupler, measuring a first coupled power at a coupled port of the directional coupler after applying the first impedance, applying a second impedance at the transmitted port of the directional coupler, measuring a second coupled power after applying the second impedance, and determining a difference between the first coupled power and the second coupled power to form the coupled power variation.
Power divider and power combiner
A power circuit suitable for combining or splitting broadband signals. The circuit includes a stepped impedance section, a core section and a first, second and third port. The stepped impedance section and the core section are interconnected at an interconnection. The stepped impedance section includes a first transmission line running from the first port to the interconnection. The core section includes a second and a third transmission line running from the interconnection to the second and third ports, respectively. The second and third transmission lines each have at least a first and a second core subsection. The number of core subsections of the second transmission line and the number of core subsections of the third transmission line is equal, to the number of stepped impedance subsections of the stepped impedance section.
Terahertz filter tuning
A terahertz waveguide bandpass filter block assembly including a waveguide iris filter, a pedestal block having a pedestal channel including a first one-half portion of the iris filter, and a cover block having a cover channel including a second one-half portion of the iris filter, where the first and second one-half portions combine to define the iris filter having a plurality of poles when the pedestal block and the cover block are secured together. The assembly also includes first and second ribbon strips positioned on opposing sides and adjacent to the iris filter between the pedestal block and the cover block, where a compression force between the pedestal block and the cover block compresses the first and second ribbon strips and sets an “a” dimension of the iris filter to tune the filter to a frequency band of interest.
High-frequency filter and electronic device
A flat cable high-frequency filter includes a dielectric substrate extending in a transmission direction of a high-frequency signal. The dielectric substrate includes dielectric layers stacked on each other. Elongated conductor patterns are provided on a flat surface of one dielectric layer which faces another dielectric layer. The conductor patterns are as wide as possible in the dielectric substrate in accordance with a desired inductance. A capacitive coupling conductor pattern opposes one conductor pattern by a predetermined area with a dielectric layer therebetween. By using a connecting conductor, the capacitive coupling conductor pattern is connected to the conductor pattern which does not oppose the capacitive coupling conductor pattern.
A battery capacity estimation unit estimates a battery in battery capacity based on information regarding the battery's use history. A moisture intrusion estimation unit estimates an amount of moisture intruding into the battery. A battery capacity correction unit uses the estimated amount of intruding moisture to correct the estimated battery capacity.
Method for manufacturing and operating power storage device
A power storage device including a solid electrolyte and operating at room temperature and a power storage device including a solid electrolyte and having higher discharge capacity are manufactured. The power storage devices are each manufactured in the following manner: an electrolyte including an ion-conducting high polymer, an inorganic oxide, and a lithium electrolyte salt is provided between a positive electrode and a negative electrode; charge at a first current value is performed and then a charge at a first voltage value obtained by the charge at the first current value is performed, between the positive electrode and the negative electrode at room temperature; and discharge at a second current value is performed after the charge at the first voltage value is performed.
Non-aqueous electrolyte solution and lithium secondary battery comprising the same
The present invention relates to a lithium secondary battery comprising a non-aqueous electrolyte solution comprising lithium bis(fluorosulfonyl)imide (LiFSI) and a phosphazene compound as additives, a positive electrode comprising a lithium-nickel-manganese-cobalt-based oxide as a positive electrode active material, a negative electrode and a separator. According to a non-aqueous electrolyte solution for a lithium secondary battery of the present invention, a rigid SEI layer may be formed at a negative electrode during the initial charging of the lithium secondary battery comprising the same, the output properties of the lithium secondary battery may be improved, and the output properties after storing at high temperature and capacity properties may be increased.
Nonaqueous electrolyte solution and nonaqueous electrolyte battery using same
The object of the present invention is to provide a nonaqueous electrolyte secondary battery which has excellent balance of general performance with respect to performance including durability, capacity, resistance, and output characteristics. Provided is a nonaqueous electrolyte battery comprising a positive electrode and a negative electrode each being capable of occluding and releasing metal ions, and a nonaqueous electrolyte solution, wherein the nonaqueous electrolyte solution contains an electrolyte, a nonaqueous solvent, and at least one compound selected from the group consisting of a compound having a fluorosulfonyl structure (—SO2F), a difluorophosphate, and an isocyanate compound, and wherein the negative electrode has a negative electrode active material containing metal particles capable of alloying with Li and graphite particles.
Battery, battery pack, electronic equipment, electric vehicle, power storage device, and power system
A battery includes a positive electrode formed with a positive electrode active material layer containing a positive electrode active material at least on one side of a positive electrode current collector, a negative electrode formed with a negative electrode active material layer containing a negative electrode active material at least on one side of a negative electrode current collector, a separator, and an electrolyte containing solid particles. The capacity area density (mAh/cm2) of the negative electrode active material layer is equal to or higher than 2.2 mAh/cm2 and equal to or lower than 10 mAh/cm2, and the capacity area density (mAh/cm2) of a gap in the negative electrode active material layer is equal to or higher than 5.9 mAh/cm2 and equal to or lower than 67 mAh/cm2.
Cathodes and electrolytes for rechargeable magnesium batteries and methods of manufacture
The invention relates to Chevrel-phase materials and methods of preparing these materials utilizing a precursor approach. The Chevrel-phase materials are useful in assembling electrodes, e.g., cathodes, for use in electrochemical cells, such as rechargeable batteries. The Chevrel-phase materials have a general formula of Mo6Z8 and the precursors have a general formula of MxMo6Z8. The cathode containing the Chevrel-phase material in accordance with the invention can be combined with a magnesium-containing anode and an electrolyte.
Multi-functional electrolyte for thermal management of lithium-ion batteries
The high thermal conduction resistances of a lithium-ion battery (LIB) severely limit the effectiveness of a conventional external thermal management system (TMS). A method for a new thermal management system for lithium-ion batteries that utilizes a multi-functional electrolyte (MFE) to remove heat locally inside the cell by evaporating a volatile component of the MFE is disclosed. These new electrolyte mixtures comprise a high vapor pressure co-solvent. The characteristics of a previously unstudied high vapor pressure co-solvent HFE-7000 (65 kPa at 25° C.) in an MFE (1 M LiTFSI in 1:1 HFE-7000/EMC), and other possible MFE compositions that can be utilized in a custom electrolyte boiling facility, are disclosed.
Power source module
Provided is a power source module which includes: a plurality of energy storage devices stacked in a stacking direction; end plates sandwiching the plurality of energy storage devices therebetween; and a plurality of fastening bars connecting the end plates to each other; wherein the energy storage device includes: a terminal surface on which an electrode terminal is mounted; a bottom surface; and first and second side surfaces. Each of the fastening bars includes an extending portion extending parallel to the stacking direction and fastening portions extending parallel to the end plates. As viewed in the stacking direction, a total area of the fastening portions positioned in a region close to the terminal surface with respect to a center line between the terminal surface and the bottom surface is set larger than a total area of the fastening portions positioned in a region close to the bottom surface with respect to the center line.
System for rolling electrode plates
A system for rolling electrode plates includes: supplying units for supplying first and second electrode plates and separators; electrode processing units for forming first electrode tabs having gradually increasing intervals between tabs on one side of the first electrode plate and second electrode tabs having gradually increasing intervals between tabs on one side of the second electrode plate by performing cutting processes on the sides of the first and second electrode plates; an assembling unit for forming an electrode assembly by rolling the first and second electrode plates and the separators; and buffer units for temporarily storing the first and second electrode plates to compensate for differences in processing rates and base material transfer amounts between the electrode processing units and the assembling unit, and for transmitting the temporarily stored first and second electrode plates to the assembling unit.
Fluoroionomers dispersions having a low surface tension, low liquid viscosity and high solid content
The invention pertains to a process for manufacturing certain (per)fluoroionomer liquid compositions, comprising, inter alia, at least one of fluorination and treatment with a polar solvent, to the liquid compositions therefrom having an improved solids content/surface tension/liquid viscosity compromise, to the use of the same for manufacturing composite membranes and to composite membranes obtainable therefrom.
Integrated gas management device for a fuel cell system
An integrated gas management device (GMD) for a fuel cell comprises a gas-to-gas humidifier for transferring water from a second gas to a first gas; a heat exchanger attached to a first end of the humidifier core for cooling the first gas; and/or a water separator attached to a second end of the humidifier core for removing liquid water from the second gas. The GMD may optionally comprise a thermal isolation plate between the heat exchanger and the first end of the humidifier core. The GMD further comprises a bypass line to allow the first gas to bypass the humidifier. The first gas may comprise cathode charge air and the second gas may comprise cathode exhaust.
Ventilation system for an automotive fuel cell stack enclosure
A fuel cell stack is housed within a fuel cell stack enclosure. Air is used to ventilate the fuel cell stack enclosure. The air may be pulled from an air stream used to cool a high voltage battery. The air may also be pulled from a vehicle compartment such as a vehicle trunk or vehicle cabin. Filters are used to remove particulate matter from the air.
Frame body, cell frame for redox flow battery, and redox flow battery
There is provided a frame body used for a cell of a redox flow battery, that can improve heat dissipation of an electrolyte in a slit while reducing a shunt current loss through the electrolyte, and can also suppress strain caused at a slit formation portion. It is a frame body used for a cell of a redox flow battery, comprising: an opening formed inside the frame body; a manifold allowing an electrolyte to pass therethrough; and a slit which connects the manifold and the opening and forms a channel of the electrolyte between the manifold and the opening, the slit having at least one bent portion, the at least one bent portion having a radius of curvature of 2.0 mm or more and 200 mm or less.
Titanium material for polymer electrolyte fuel cell separator, method for producing the same, and polymer electrolyte fuel cell using the same
A titanium material for a polymer electrolyte fuel cell separator consists of, by mass %, a platinum group metal: 0.005% to 0.15% and a rare earth metal: 0.002% to 0.10%, with the balance being Ti and impurities. The titanium material of the present invention is provided with a film formed of a titanium oxide and a platinum group metal on the surface thereof. It is preferred that the film has a thickness of 50 nm or less, and that the concentration of the platinum group metal on the surface of the film is 1.5% by mass or more. With the thus formed film, the titanium material of the present invention is capable of achieving a reduction in initial contact resistance and ensuring good corrosion resistance. In the titanium material of the present invention, the rare earth metal is preferably Y, and the platinum group metal is preferably Pd.
Method for producing fuel cell electrode catalyst
A method is provided for producing a platinum alloy-containing fuel cell electrode catalyst with high activity which is suited for its industrial mass-production. The method for producing a fuel cell electrode catalyst includes a step of preparing a dispersion in which particles of a fuel cell electrode catalyst precursor including a platinum alloy is dispersed in an electrolyte solution, and a step of alternately subjecting the dispersion to bubbling with an oxidizing gas and to bubbling with an inert gas or a reducing gas.
Carbon monoxide-tolerant anode catalyst layer and methods of use thereof in proton exchange membrane fuel cells
A method of operating a fuel cell having an anode, a cathode and a polymer electrolyte membrane disposed between the anode and the cathode, includes feeding the anode with an impure hydrogen stream having low levels of carbon monoxide up to 5 ppm, wherein the anode includes an anode catalyst layer including a carbon monoxide tolerant catalyst material, wherein the catalyst material includes: (i) a binary alloy of PtX, wherein X is a metal selected from the group consisting of Nb and Ta, and wherein the atomic percentage of platinum in the alloy is from 45 to 80 atomic % and the atomic percentage of X in the alloy is from 20 to 55 atomic %; and (ii) a support material on which the PtX alloy is dispersed; wherein the total loading of platinum in the anode catalyst layer is from 0.01 to 0.2 mgPt/cm2.
Positive active material, method of preparing the same, positive electrode, and lithium battery
A positive active material, a method of preparing the same, and a lithium battery including the positive active material, the positive active material including a core, the core including an overlithiated lithium transition metal oxide; and a coating layer on the core, the coating layer including Li3VO4.
Binder composition for nonaqueous battery electrodes, slurry for nonaqueous battery electrodes, nonaqueous battery electrode, and nonaqueous battery
A binder composition for nonaqueous battery electrodes is prepared by adding a small amount of an acetylene glycol compound to an aqueous polymer emulsion obtained by emulsion polymerization of a monomer mixture comprising from 15 to 70% by mass of styrene (a), from 20 to 80% by mass of an ethylenically unsaturated carboxylate (b), from 1 to 10% by mass of an ethylenically unsaturated carboxylic acid (c), from 0.1 to 5% by mass of a crosslinkable ethylenically unsaturated monomer (d), and from 0 to 20% by mass of another monoethylenically unsaturated monomer (e). When the above binder composition is used, an active material is not peeled off in the step of cutting a collector even when a small amount of the binder is used, and a nonaqueous battery excellent in a charge-discharge cycle property can be produced.
Nonaqueous electrolyte battery and battery pack
The nonaqueous electrolyte battery according to one embodiment includes a positive electrode and a negative electrode. The positive electrode contains a positive electrode active material containing manganese-containing composite oxide. The negative electrode contains a negative electrode active material selected from the group consisting of titanium oxide and titanium-containing composite oxide. A ratio p/n of a capacity p per unit area of the positive electrode to a capacity n per unit area of the negative electrode is in the range of 0.8 or more and 1 or less.
Silicon-carbon composite material including layered carbon and silicon particles
A silicon-carbon composite material includes: layers of carbon material; and secondary particles of silicon held between the layers of the carbon material. Each of the secondary particles of silicon is an aggregate of primary particles of silicon. At least one of the primary particles of silicon has a diameter 3 nm or more. At least one of the secondary particles of silicon has a diameter of 50 nm or less.
A composition for use in a lithium ion battery includes a plurality of elongate elements and a plurality of particles. The elongate elements and particles each include a metal or semi-metal selected from one or more of the group including silicon, tin, germanium, aluminum or mixtures thereof. The composition may include additional ingredients such as a binder, a conductive material and a further electro-active material, such as graphite. The compositions can be used for the fabrication of electrodes, preferably anodes in the manufacture of lithium ion batteries and optionally batteries based on magnesium ions or sodium ions. The composition is able to intercalate and release lithium during the charging and discharging cycles respectively of a battery into which it has been incorporated. Methods of fabricating the composition and electrodes including the composition are included as well as electrodes thus prepared and devices including such electrodes.
Carbon fiber zinc negative electrode
The conductivity of a zinc negative electrode is enhanced through use of surfactant-coated carbon fibers. Carbon fibers, along with other active materials such as bismuth oxide, zinc etc., form an electronically conductive matrix in zinc negative electrodes. Zinc negative electrodes as described herein are particularly useful in nickel zinc secondary batteries.
Porous silicon particulates with micropores and mesopores within macropores
Embodiments of the present disclosure pertain to porous silicon particulates and anode materials that contain them. In some embodiments, each of the porous silicon particulates include a plurality of macropores, mesopores and micropores such that the micropores and mesopores are within the macropores. The porous silicon particulates also contain: a coating associated with the porous silicon particulates; and a binding material associated with the porous silicon particulates. The binding material can include binders, carbon materials, polymers, metals, additives, carbohydrates, and combinations thereof.
Aluminum alloy foil for current collector of electrode, and manufacturing method thereof
An aluminum alloy foil for a current collector of an electrode is provided which has not only high electric conductivity but also high strength before and after a drying step, and is low in manufacturing cost. Provided is an aluminum alloy foil for a current collector of an electrode, containing 1.0 to 2.0 mass % (hereafter, simply referred to as “%”) of Fe, 0.01 to 0.2% of Si, 0.0001 to 0.2% of Cu, and 0.005 to 0.3% of Ti, the remainder being Al and inevitable impurities, wherein an amount of Fe contained as a solid solution is 300 ppm or more, and particles of intermetallic compounds having an equivalent circle diameter of 0.1 to 1.0 μm exist at 1.0×105 particles/mm2 or more.
Cathode active material for non-aqueous electrolyte secondary battery manufacturing method thereof, and non-aqueous electrolyte secondary battery
A non-aqueous electrolyte secondary battery is provided that has both good safety and durability characteristics while at the same time has high charge/discharge capacity. The cathode active material for a non-aqueous electrolyte secondary battery of the present invention is a lithium nickel composite oxide to which at least two or more kinds of metal elements including aluminum are added, and comprises secondary particles that are composed of fine secondary particles having an average particle size of 2 μm to 4 μm, and rough secondary particles having an average particle size of 6 μm to 15 μm, with an overall average particle size of 5 μm to 15 μm; where the aluminum content of fine secondary particles (metal mole ratio: SA) is greater than the aluminum content of rough secondary particles (metal mole ratio: LA), and preferably the aluminum concentration ratio (SA/LA) is within the range 1.2 to 2.6.
Bus bar holding member and battery pack
A bus bar holding member comprises a plurality of bus bars arranged to connect terminals of respective batteries in each battery array group in parallel, and a resin support member comprising a resin stacking section which is stacked on a surface of the plurality of bus bars and a resin intervening section which intervenes between the plurality of bus bars to electrically insulate the plurality of bus bars from each other. The bus bar comprises a base plate on which the resin stacking section is stacked, and a jagged edge formed along an edge of the base plate. The jagged edge is formed in a wavy shape crossing a reference line, which is a straight line along an array direction of the batteries in each battery array group between an adjacent pair of the battery array groups.
A battery pack includes a battery assembly having a plurality of battery cells, a busbar module that includes a plurality of conductors and an insulating member which holds the conductors, a battery control unit provided at an end portion of the battery assembly in an arrangement direction of the battery cells, and an extraction conductor that connects a total electrode terminal connected to the battery assembly to a main circuit terminal of the battery control unit. The extraction conductor has a water escape portion which is located below an imaginary line connecting the total electrode terminal to the main circuit terminal, and an upper end of the water escape portion is formed at a location that is lower than a lower end of the main circuit terminal.
Electrode assembly and polymer secondary battery cell including the same
An electrode assembly includes a cell stack part having a structure of steps obtained by stacking at least two groups of radical units having different sizes or having different geometric shapes according to the size or the geometric shapes. The radical unit has a combined structure into one body by alternately same number of electrodes and separators, and each step of the cell stack part has a structure in which one kind of radical units is disposed once or repeatedly, or a structure in which at least two kinds of radical units are disposed. The one kind of radical unit has a four-layered structure of first electrode, first separator, second electrode and second separator sequentially stacked or a repeating structure of the four-layered structure. Each of the at least two kinds of radical units are stacked by ones to form the four-layered structure or the repeating structure.
Housing composed of a metal frame structure and a plastic component for accommodating a cell stack
A housing is provided for accommodating a cell stack. The housing has a side wall and a frame structure. The side wall is designed as a plastic component. The side wall has a first accommodation area and a second accommodation area. The frame structure is designed for preloading the cell stack. The frame structure has a first rail fixed in the first accommodation area and a second rail fixed in the second accommodation area. The first rail and the second rail are oriented transversely to the side wall.
Prefabricated substrate of array substrate, vapor deposition method, array substrate and display apparatus
The present invention provides a prefabricated substrate of array substrate, a vapor deposition method, an array substrate and a display apparatus, which can solve a problem that there is a waste of material in a vapor deposition process of the prior art. The prefabricated substrate comprises a plurality of sub-pixel units, each sub-pixel unit comprising a drive unit and a sub-pixel electrode connected with the drive unit, wherein, the drive unit is also connected with a data line and a gate line, and is used for transferring a data voltage signal outputted from the data line to the sub-pixel electrode when the gate line is strobed. The sub-pixel unit further comprises a switch unit connected with the data line and the sub-pixel electrode The switch unit is used for adjusting voltage of the sub-pixel electrode under control of a switch signal outputted from a switch signal line.
Electronic devices with light sensors and displays
An electronic device is provided with a display and a light sensor that receives light that passes through the display. The display includes features that increase the amount of light that passes through the display. The features may be translucency enhancement features that allow light to pass directly through the display onto a light sensor mounted behind the display or may include a light-guiding layer that guides light through the display onto a light sensor mounted along an edge of the display. The translucency enhancement features may be formed in a reflector layer or an electrode layer for the display. The translucency enhancement features may include microperforations in a reflector layer of the display, a light-filtering reflector layer of the display, or a reflector layer of the display that passes a portion of the light and reflects an additional portion of the light.
Flexible display device having a self-healing capability and fabrication method thereof
A flexible display device and fabrication method thereof are provided. The flexible display device includes a flexible substrate, a buffer layer disposed on the flexible substrate, a display unit disposed on the buffer layer covering a part of the buffer layer, and a thin film encapsulation layer disposed on the display unit and a rest part of the buffer layer. At least one of the buffer layer and the thin film encapsulation layer includes a self-healing layer comprising a self-healing polymer material.
Display device having improved environmental tolerance
A display device includes a substrate including a display area and a non-display area surrounding the display area, a thin-film encapsulation layer disposed on the substrate, and a first blocking dam disposed outside the display area, the first blocking dam having at least one layer. Portions of the first blocking dam is removed, and thus, the divided pieces of the first blocking dam are spaced apart from each other, and a second blocking dam is disposed in at least one of a front portion and a rear portion of the first blocking dam corresponding to the spaced part.
Sealing film, organic el element, and organic el display device
Provided is a TFT substrate (substrate); a second electrode (vapor-deposited membrane) that is formed on the TFT substrate and includes a protruding portion; and a sealing membrane provided so as to cover the second electrode, wherein, when σ represents an absolute value of a stress of the sealing membrane, t represents a thickness of the sealing membrane, and P represents a sum of a product of an oblique side length and an oblique side slope in a minute region on an oblique side of the protruding portion, a value of an index N expressed by the expression (N=σ·t·P) is less than or equal to 935 MPa·μm2.
Organic light-emitting diode display
An organic light-emitting diode display is provided. The organic light-emitting diode display includes a first substrate, a second substrate, a frit, a metal layer, and an insulating layer. The second substrate is arranged to be separated from the first substrate. The frit is located between the first and second substrates. The metal layer is disposed on the first substrate, and the frit is located on the metal layer. The metal layer includes at least one opening. The frit is located in the opening. The frit has a number of voids arranged to correspond to the opening.
Organic light-emitting display apparatus including peripheral part opening patterns and method of manufacturing the same
An organic light-emitting display apparatus, including a lower substrate having a peripheral area, which includes a first peripheral part and a second peripheral part, and a display area between the first peripheral part and the second peripheral part; an upper substrate on the lower substrate; a sealing member between the lower substrate and the upper substrate and on the lower substrate in the peripheral area; and a first material layer between the sealing member and the lower substrate and including a first opening pattern at the first peripheral part and a second opening pattern at the second peripheral part, the second opening pattern having a smaller size than the first opening pattern.
Organic light emitting devices
An organic light emitting device includes: one thin film transistor (TFT) and a first auxiliary electrode on the first substrate; a second auxiliary electrode being overlapped and being electrically connected with the first auxiliary electrode; a light emitting unit above and being electrically connected with the TFT, the light emitting unit comprising a first and a second pixel electrode, an organic light-emitting layer between the first and the second pixel electrode; wherein the second pixel electrode comprising a first area and a second area connecting with the first area, the first area being above and electrically connecting with the second auxiliary electrode, wherein the organic light-emitting layer being spaced apart from the second auxiliary electrode by a portion between the organic light-emitting layer and the second auxiliary electrode; and wherein tops of the first and the second area of the second pixel electrode are on the same plane.
Foldable display apparatus
A foldable display apparatus includes: a first flexible panel and a second flexible panel, the first and second flexible panels being separate from each other; a first case supporting the first flexible panel and a second case supporting the second flexible panel; and a link member foldably connecting the first and second cases, and adjacent boundary regions of the first and second flexible panels are curved.
Electronic devices with robust flexible displays
An electronic device may have a hinge that allows the device to be flexed about a bend axis. A display may span the bend axis. To protect display elements such as pixel circuitry from excessive mechanical stress, the display may include one or more structural protective layers. A structural layer may be incorporated into the display stack as a supportive backing behind the pixel circuitry and/or as a protective cover over the pixel circuitry. The structural layer may include rigid portions and flexible portions. The flexible portions may contain flexible material that separates and adjoins adjacent rigid structures or that fills grooves between adjacent rigid portions. The rigid portions may be formed from thin sheets of glass or other transparent materials. The flexible material in the structural layer may be an elastomeric material having a refractive index that matches that of the glass sheets in the structural layer.
Platinum complexes and devices
Platinum compounds of Formulas I and II useful in a variety of devices, such as, for example organic-light emitting diodes (OLEDs).
Organic electroluminescence device and electronic device
An organic electroluminescence device includes an anode, an emitting layer and a cathode, in which the emitting layer includes a first compound, a second compound and a third compound. The first compound is a delayed fluorescent compound. The first compound has an energy gap T77K at 77 [K] larger than an energy gap T77K at 77 [K] of the second compound. The third compound has an energy gap T77K at 77 [K] larger than the energy gap T77K at 77 [K] of the second compound. The second compound has a fused ring structure represented by a formula (2) below and has eight or less rings in total.
Fused polycyclic heteroaromatic compound, organic thin film including compound and electronic device including organic thin film
A low-molecular-weight fused polycyclic heteroaromatic compound has a compact planar structure in which seven or more aromatic rings and heteroaromatic rings are fused together, and thereby exhibits relatively high charge mobility, and improved processibility due to improved dissolubility for a solvent. An organic thin film and an electronic device include the fused polycyclic heteroaromatic compound expressed in Chemical Formula 1.
Method of manufacturing organic light-emitting display apparatus
A method of manufacturing an organic light-emitting display apparatus including forming an anode on a substrate, forming a lift-off layer on the substrate including the anode, the lift-off layer including a fluoropolymer, forming a pattern on a first portion the lift-off layer overlapping the anode using a roll-to-roll stamp process, forming an organic functional layer including a light-emitting layer on the anode and on a second portion of the lift-off layer not formed with the pattern, removing the lift-off layer using a solvent including fluorine, and forming a cathode on the organic functional layer.
Back plate clamping device, alignment device and evaporation equipment
Embodiments of the present invention relate to the field of display technology and disclose a back plate clamping device, an alignment device and an evaporation equipment. In one embodiment, a back plate clamping device includes a framework, an upper clamping plate mounted to the framework, and a lower clamping plate assembly. The lower clamping plate assembly includes a stand, a plurality of support plates and a plurality of elastic support structures that are provided in an one-to-one correspondence with the support plates. A surface of each support plate facing away from the corresponding elastic support structure is formed with a supporting face, and, each support plate is mounted to the stand and is movable in a direction perpendicular to a plane where the supporting face is located. And, the stand is mounted to the framework and is movable in the direction perpendicular to the plane.
Method for etching object to be processed
In one embodiment, a method for etching a workpiece including a lower electrode and a multi-layer film disposed on the lower electrode, the multi-layer film including a first magnetic layer, a second magnetic layer, and an insulating layer interposed between the first magnetic layer and the second magnetic layer, through a mask, is provided. The method includes exposing the workpiece to plasma of first processing gas which contains first rare gas and second rare gas having an atomic number larger than that of the first rare gas, and does not contain hydrogen gas.
Structure and method to reduce shorting in STT-MRAM device
A method of making a magnetic random access memory (MRAM) device includes depositing a spacer material on an electrode; forming a magnetic tunnel junction (MTJ) on the spacer material that includes a reference layer in contact with the spacer material, a free layer, and a tunnel barrier layer; patterning a hard mask on the free layer; etching the MTJ and the spacer material to transfer a pattern of the hard mask into the MTJ and the spacer material; forming an insulating layer along a sidewall of the hard mask, the MTJ, and the spacer material; disposing an interlayer dielectric (ILD) on and around the hard mask, MTJ, and spacer material; etching through the ILD to form a trench that extends to a surface and sidewall of the hard mask and a sidewall of a portion of the MTJ; and disposing a metal in the trench to form a contact electrode.
Spin torque majority gate device
The disclosed technology generally relates to magnetic devices, and more particularly to spin torque devices. In one aspect, a spin torque majority gate device includes a free ferromagnetic layer, a spin mixing layer formed above the free ferromagnetic layer, a non-magnetic tunnelling layer formed above the spin mixing layer, and a plurality of input elements formed above the non-magnetic tunnelling layer, where each input element has a fixed ferromagnetic layer.
The present invention provides a polymeric actuator which has excellent flexibility and elongation rate; low temperature dependability of physical properties such as an elastic modulus and high dielectric breakdown strength, and which can drive in a low electric field. The present invention relates to a polymeric actuator, wherein the polymeric dielectric has a storage elastic modulus at 20° C. [E′(20° C.)] determined by a dynamic viscoelastic measurement at a frequency of 1 Hz of not more than 0.5 MPa, a ratio [E′(−20° C.)/E′(20° C.)] of a storage elastic modulus at −20° C. [E′(−20° C.)] determined by a dynamic viscoelastic measurement at a frequency of 1 Hz to the [E′(20° C.)] of not more than 5.0, and a ratio [E′(40° C.)/E′(20° C.)] of a storage elastic modulus at 40° C. [E′(40° C.)] determined by a dynamic viscoelastic measurement at a frequency of 1 Hz to the [E′(20° C.)] of not less than 0.5.
Athletic activity monitoring device with energy capture
Aspects relate to an energy harvesting device adapted for use by an athlete while exercising. The device may utilize a mass of phase-change material to store heat energy, the stored heat energy subsequently converted into electrical energy by one or more thermoelectric generator modules. The energy harvesting device may be integrated into an item of clothing, and such that the mass of phase change material may store heat energy as the item of clothing is laundered.
Optoelectronic semiconductor chip and optoelectronic module
An optoelectronics semiconductor chip has a substrate and a semiconductor body arranged on the substrate and has a semiconductor layer sequence. The semiconductor layer sequence includes an active region arranged between a first semiconductor layer and a second semiconductor layer and is provided to generate or to receive radiation. The first semiconductor layer is electrically conductively connected to a first contact and to a second contact. The first contact is formed on a front side of the substrate, facing the semiconductor body. The second contact is formed on a rear side of the substrate, facing away from the semiconductor body. The first contact and the second contact are electrically conductively connected to each other.
Light emitting device having a reflecting member and method of manufacturing the same
A method of manufacturing a light emitting device includes providing a reflecting sheet having a first surface and a second surface and defining through-holes; placing a wavelength-converting sheet on a first surface side of the reflecting sheet to cover openings of the through-holes at the first surface side; disposing a light-transmissive adhesive in the through-holes; disposing a light emitting element in each of the through-holes so that a light emitting surface of the light emitting element faces the wavelength converting sheet; fixing the light emitting element in the through-hole via the adhesive; and covering the second surface of the reflecting sheet and an outer surface of the adhesive with a reflecting material.
Method of fabricating light emitting diode and light emitting diode manufactured thereby
Disclosed are a method of fabricating a light emitting diode and a light emitting diode fabricated by the same. In the method of fabricating a light emitting diode, a convex-concave pattern is formed on a light emitting structure and a nanosphere layer is transferred to the convex-concave pattern, followed by dry etching to form a stepped surface structure having a plurality of nanobumps arranged on a surface thereof, and chemical coating to reduce surface energy of the stepped surface structure. The method can easily form a stepped surface structure having a plurality of nanobumps on a surface of a convex-concave pattern periodically arranged through nanosphere lithography and dry etching, thereby simplifying the fabrication process while improving production yield.