Flexible assembly machine, system and method
An assembly machine includes a plurality of track modules, each track module including a section of track, the plurality of track modules connectable to form a continuous circuitous track, the continuous circuitous track configured to receive a dispensing head, the dispensing head configured to rotate about the continuous circuitous track and at least partially assemble an unfinished product. The machine includes a first feeder module attached to a first length of the continuous circuitous track configured to feed a component to the dispensing head, and a first placement module attached to a second length of the continuous circuitous track configured to receive the unfinished product. The dispensing head is configured to place the component on the unfinished product. The assembly machine is reconfigurable by attaching or removing one or more of the plurality of track modules, the first feeder module and the first placement module.
An apparatus for mounting electronic components includes a linear actuator defining a longitudinal axis. A driver member is engaged to the linear actuator for motion along the longitudinal axis. The driver member defines a mounting plane and includes a wedge surface that is oblique facing in a direction that has a component towards the mounting plane and a component away from the longitudinal axis in a direction parallel to the mounting plane. A locking wedge is engaged with the wedge surface of the driver member to be driven both toward the mounting plane and lateral to the mounting plane away from the longitudinal axis by sliding along the wedge surface of the driver member with the actuator driving the drive member toward a center of the locking wedge.
Automatic feeder exchanging system
An automatic feeder exchanging system that automatically exchanges a feeder for which exchange is necessary from multiple feeders set in a feeder setting area of a component mounter.
Method of manufacturing electronic package module
A method of manufacturing electronic package module is provided. The method provides selective molding by attaching tapes on the circuit substrate on which electric components are mounted thereon, forming molding compound to cover the circuit substrate, and removing tapes along with the molding compound thereon.
Methods, devices, and systems for filtering electromagnetic interference
Provided herein are methods, devices, and systems that relate to electromagnetic interference (EMI) filters that, in certain embodiments, comprise: (a) a housing comprising a substantially enclosed first compartment and a substantially enclosed second compartment; (b) a first circuit card located in the first compartment of the housing that converts a signal transmitted on a conductive based medium to a signal transmitted on a non-conductive based medium; (c) a second circuit card located in the second compartment of the housing that converts a signal transmitted on a non-conductive based medium to a signal transmitted on a conductive based medium; (d) at least one non-conductive based medium that transmits a signal from the first circuit card to the second circuit card; and (e) at least one waveguide through which the non-conductive based medium passes from the first compartment to the second compartment.
Modular data center deployment method and system for data center vessels
A modular data center build method and system including prefabricated data center modules comprised of a plurality of racks, a plurality of rack-mounted computer systems, a door, electrical systems, cooling systems, power connections, water connections, video systems, biometric access system and a fire safety system. A steel beam structure may be employed to secure multiple vertical levels of a plurality of data center modules. The described modular data center build method and system with prefabricated data center modules may be employed to quickly deploy a data center in a repeatable sustainable manner, drastically reducing the build deployment time of a data center from design to fully operational.
Data center micro-module and data center formed by micro-modules
A data center micro-module includes: an enclosure, and a cabinet system, a power supply system, and a cooling system that are inside the enclosure. The cabinet system installs a computing server, the power supply system supplies power for the computing server and the cooling system, and the cooling system cools the computing server; and the enclosure is further externally provided with an interface configured to connect to another data center micro-module or connection apparatus. The foregoing data center micro-module integrates the power supply system, the cooling system and the computing server into a same module, and therefore can be directly manufactured in a factory. When a data center is built, the data center micro-modules only need to be combined and assembled, which greatly reduces a construction cycle of the data center, and the hardware architecture may be flexibly changed according to a specific deployment requirement.
Rail seal for electronic equipment enclosure
An electronic equipment enclosure includes a frame structure, one or more panels attached to the frame structure, at least one vertical mounting rail fastened to the frame structure, and a rail seal attached to the at least one vertical mounting rail. The rail seal includes a generally flat panel portion and a seal along an edge thereof. The seal is adapted to engage at least one of the one or more panels to provide an air dam between the one or more panels and the at least one vertical mounting rail.
Server rack system for mounting equipment
An improved server frame for securing equipment thereto. The server frame includes four corner secured between a base and a top. Each corner has a plurality of standard openings to receive ends of a standard rail system used to secure the equipment to the frame. The improvement defined by four interior posts, each has a base plate and an arm plate extending from the base plate. Each interior post is separately secured about the corner post. Each arm plate includes rail apertures. A pair of outer rails secured from the front to the rear of the server frame. Each outer rail has rear and front rear facing hooks configured to allow the outer rail to slide into engagement with the rail apertures on the interior posts, such that the outer rails are configured to receive inner rails secured to equipment for sliding the equipment into the server frame.
Adjustable computing component rack
A rack system for mounting a plurality of computing components includes an inner cabinet, and an outer cabinet adjustably coupled to the inner cabinet. The outer cabinet is selectively movable laterally over the inner cabinet to promote flexibility in configuring the plurality of computing components within the inner cabinet in three dimensional space.
Electronic circuit unit
A housing includes a first chassis and a second chassis which are each formed of a metal sheet. Support projections integrally formed with support pieces formed in the first chassis are fitted into support holes of a circuit board on both left and right sides of a connector. A lower surface of the circuit board is supported by receiving portions formed in the support pieces, and part of the circuit board facing the connector is pressed downward by a pressing projection formed in the second chassis.
Electronic devices wire bonded to substrate through an adhesive layer and method of making the same
A disclosed circuit arrangement includes a substrate having first bond pads coupled to a pattern of conductors. The first bond pads and the pattern of conductors are disposed on a first surface of the substrate. A first layer of adhesive is directly disposed on the first surface of the substrate and the pattern of conductors and has openings at the first bond pads. An electronic device has opposing first and second surfaces and is attached to the first surface of the substrate by the first surface of the electronic device in contact with the first layer of adhesive. The second surface of the electronic device has second bond pads. Bond wires are connected at the first bond pads through the openings in the first layer of adhesive and connected at the second bond pads.
A wiring substrate includes a first insulation layer covering a first wiring layer, a wiring pattern formed on an upper surface of the first insulation layer, and a via formed in a via hole of the first insulation layer to electrically connect the wiring pattern and the first wiring layer. The via includes a via seed layer and a filled portion filling the via hole. The wiring pattern includes a wiring seed layer formed on the upper surface of the first insulation layer and a pattern layer formed on the wiring seed layer. The via seed layer is formed from a metal acting to adsorb a plating enhancement agent, which enhances formation of the filled portion and the pattern layer in an electrolytic plating solution. The wiring seed layer is formed from a metal not acting to adsorb the plating enhancement agent as compared to the via seed layer.
Wiring board and method of manufacturing same
A wiring board is provided with: an insulating layer; a base electrode layer layered on one primary surface of the insulating layer in predetermined regions; an insulating covering layer layered on one primary surface of the insulating layer in a state covering parts of edges of the base electrode layer; and a surface electrode layer plated on exposed portions of the base electrode layer not covered by the insulating covering layer, the thickness of covered portions of the base electrode layer covered by the insulating covering layer being less than the thickness of the exposed portions. The surface electrode layer is formed only on the exposed portions of the base electrode layer.
Printed wiring board and method for manufacturing the same
A wiring board includes a substrate, pads formed on an electronic-component mounting surface of the substrate, and a resin insulation layer covering the electronic-component mounting surface and having opening portions such that the opening portions are exposing the pads, respectively. The pads include a non-solder mask defined pad having a wiring portion and a non-solder mask defined pad having no wiring portion, and the opening portions are formed such that the non-solder mask defined pads have exposed conductor areas which have substantially same areas inside the opening portions.
Printed circuit board and method of fabricating the same
Disclosed is a printed circuit board. The printed circuit board includes an insulating layer, a copper foil formed on the insulating layer and formed therein with a groove to expose a portion of a top surface of the insulating layer, and a thermal conductive layer filled in the groove.
Photon source, metrology apparatus, lithographic system and device manufacturing method
A radiation driven light source comprises laser and focusing optics. These produce a beam of radiation focused on a plasma forming zone within a first container containing a gas (e.g. Xe). Collection optics collects photons emitted by a plasma maintained by the laser radiation to form a beam of output radiation. First container is enclosed within a hermetically sealed second container. Any ozone generated within the second container as a result of ultraviolet components of the output radiation is completely contained within the second container. Second container further filters out the ultraviolet components. Microwave radiation may be used instead of laser radiation to form the plasma.
Apparatus and methods for activatable lighting devices
Methods, apparatus and computing devices are described herein for activatable lighting devices. In various embodiments, a composition of a lighting system may be ascertained based at least in part on a database (851, 951) of one or more lighting device records associated with one or more lighting devices (100, 600, 700, 800a, 800b, 900, 1000a, 1000b, 1000c) of the lighting system. In various embodiments, it may be determined, based on the ascertained composition, that a predetermined criterion is satisfied. In various embodiments, a communication may be issued in response to the determination. The communication may be configured to facilitate activation of a deactivated lighting device function of a lighting device associated with the lighting system.
Systems and methods for managing lighting settings in a lighting system
Embodiments are provided for systems and methods of managing a lighting system. According to certain aspects, the lighting system includes a low voltage controller (LVC) connected to multiple switches and to multiple drivers. Based on signals received from the switches, the LVC may determine a desired lighting setting as well as an adjustment setting of the lighting setting. The LVC may apply an appropriate signal to a driver to cause the driver to power a corresponding portion of luminaires. The LVC may include a memory configured to store adjustment settings so that the LVC may revert back to desired lighting and adjustment settings.
Systems and apparatus for automatically deriving and modifying personal preferences applicable to multiple controllable lighting networks
Systems and methods for deriving and modifying personal preferences related to at least one controllable lighting network are disclosed. The systems include a processor that can be used in conjunction with a personal communication device and a preferences database. The processor is used to detect an identifier for a user, a plurality of adjustments to the at least one controllable lighting network requested by the user, and a context corresponding to each of the plurality of adjustments. The processor in some such systems has an associated local memory to store the plurality of adjustments, corresponding contexts, and the identifier of the associated user. The processor is further used to analyze the plurality of lighting adjustments and the corresponding contexts. Based on the analysis, the processor identifies a correlation between the plurality of adjustments and the contexts, and create at least one personal preference rule associated with the user identifier based on the correlation. The preferences database in some such systems is used to store the rules and the plurality of adjustments.
LED lamp with integral control receptacle
An LED lamp is enhanced by adding an integral control receptacle, wherein a frame structure of the lamp having a horizontal top surface is adapted by attaching a photocontrol receptacle on the top surface and wiring it for powering some pins of the receptacle and for connecting some pins for controlling functions of the LED lamp. The control is provided by plugging a suitable controller into the receptacle. Advantageously, a metal plate is attached between the receptacle and the lamp frame, thereby enhancing performance in ways that include heat sinking, blocking uplight, reflecting added light down and outward. Additional lighting effects are derived from optionally shaping the plate, providing different surfaces on it, and/or attaching more LEDs on it.
Illumination light communication apparatus and communication module
An illumination light communication apparatus includes: a light source which emits illumination light; a power supply circuit for supplying constant current to the light source; a switch which is connected in series to the light source, and intermittently interrupts current which flows through the light source; a signal generating circuit which generates a binary communication signal which controls on and off of the switch to modulate the illumination light; and a current limiting circuit which is connected in series to the light source and the switch, and limits the current which flows through the light source to prevent the current from exceeding a current set value which is variable.
LED-based lighting assembly having multiple modules each arranged with divergent LED light sources of particular wavelengths
An LED lighting module includes a substrate and multiple divergent types of LED light sources that have different wavelengths and are housed on the substrate. The multiple LED light sources include: a phosphor-converted amber source; a phosphor-converted green source; a direct emission red source; a direct emission green source; a direct emission blue source; and a direct emission cyan source. The module can further include a controllable power source unit configured to supply the LED light sources and a control unit to control the power supply unit.
Drive circuit and illumination device comprising the drive circuit
Various embodiments may relate to a drive circuit of an illumination device. The drive circuit has an output terminal connected to a load of the illumination device. The drive circuit includes a power supply, a boost control unit connected to an output terminal of the power supply, a main control unit connected to the boost control unit, and a load current control unit connected between the main control unit and the load, and including a switch unit. The switch unit includes a first sub switch unit, which is configured to switch according to a dimming control signal from the main control unit, and further includes a second sub switch unit connected to the first sub switch unit. The second sub switch unit is configured to be turned on in a situation where the first sub switch unit is turned on so as to turn off the first sub switch unit.
Heated rigid electrical harness for a gas turbine engine
A rigid electrical raft has electrical conductors embedded in a rigid material. The electrical conductors transmit electrical signals through the rigid electrical raft, which may form part of an electrical system of a gas turbine engine. The rigid electrical raft also has electrical heating elements embedded therein. The electrical heating elements provide heat which may be used, for example, to prevent condensation and/or ice build-up and/or to raise the temperature of electrical components to be within a desired range.
Heat treatment of helical springs or similarly shaped articles by electric resistance heating
Apparatus is provided for metallurgical heat treatment of coil springs, or similarly shaped workpieces and articles of manufacture, by electric resistance heating along the entire length of the workpiece so that the ends of the workpiece can be heat treated to the same degree and quality as the section of the workpiece between its two ends.
Baking apparatus for priming substrate
A baking apparatus for priming a substrate is provided, which includes a chamber, a hot plate and a barrier element. The hot plate is in the chamber and configured to bake the substrate on the hot plate. The barrier element is in contact with a periphery of the substrate and the hot plate to prevent contamination on a lower surface of the substrate. Another baking apparatus for priming a substrate is also provided, which includes a chamber and a hot plate. The hot plate is in the chamber and in full contact with a lower surface of the substrate to prevent contamination thereon.
Data frame structure and operation method for sharing unlicensed spectrum in wireless communication system and apparatus thereof
Provided are a data frame structure of a wireless communication system, which follows a sharing protocol which may be operated to coexist with a system that operates in an unlicensed spectrum, such as a WiFi system, and the like in the wireless communication system using a licensed spectrum such as an LTE system and an operation method of the system, and a terminal and a device of a base station for the operation.
Information processing apparatus and computer program product
A first memory stores an application that causes a processor to acquire, via the wireless communication performed by a first interface according to a first communication method, creation information required to create communication information to be used by a second interface performing the wireless communication according to a second wireless communication method; create the communication information containing the acquired creation information and decision information used for deciding whether the communication information is to be deleted; determine whether the wireless communication is disconnected; make decision, based on the decision information, as to whether the communication information is to be deleted; and continue making the decision while the application is not running. The second memory stores basic software that causes the processor to delete the communication information when it is determined that the wireless communication is disconnected or when it is decided that the communication information is to be deleted.
Maintaining a packet-switched signaling connection during handover between cells
Methods and apparatus are provided to reduce service interruption for intra-RAT and inter-RAT handover procedures. The UE performs a NAS signaling procedure via a NAS signaling connection in a mobile communication network. The UE monitors a radio resource status and determines whether a radio bearer has been or is being established for a RRC connection for data transmission. The UE determines whether to release the NAS signaling connection after completing the NAS signaling procedure based on whether the radio bearer has been established. In one embodiment, the UE monitors a radio resource status and determines whether a radio bearer has been established for a RRC connection for data transmission. The UE determines whether to start a timer upon completing the NAS signaling procedure based on whether the radio bearer has been or is being established.
Techniques for assisting radio access technology (RAT) communications using another RAT
Systems and methods for communicating in a wireless network using a first radio access technology (RAT) and an assisting RAT are disclosed. A first connection can be established with a user equipment (UE) using the first RAT, and a second connection can be established with the UE using an assisting RAT. A timing of the first connection can be synchronized based at least in part on a timeline of the assisting RAT, and a neighboring access point can be collaborated with in communicating with a UE over at least the first connection.
Communication system and communication apparatus
A communication system in which a communication apparatus includes a calculation unit configured to calculate, upon receiving a search signal from a new communication apparatus, a first time length by multiplying a first weighting time length by a relay count in a communication route to a destination, a second time length by multiplying a second weighting time length shorter than the first weighting time length by the signal strength of each communication link in the communication route, and a third time length by adding the first and second time lengths, and a transmission unit configured to transmit a response signal upon passage of the third time length from the receipt of the search signal, wherein upon receiving the response signal from one of the communication apparatuses ahead of any other response signals, the new communication apparatus sets the one of the communication apparatuses as the most adjacent relay point.
System and method for managing emergency requests
A network component is provided. The network component including a component configured such that the network transmits a response message containing an indicator indicating that a first message is an emergency-related request, and such that the network receives a second message containing information associated with a user equipment (UE).
Methods for processing emergency call and communications apparatuses utilizing the same
A communications apparatus includes a baseband signal processing device, an RF signal processing device, a memory device, and a processor. The processor transmits a normal call-establishment signal with a remote identifier to a network to originate a normal call in response to a first call-origination request with the remote identifier, receives an indication message indicating that the normal call is routed as an emergency call from the network, records the remote identifier in the memory device, and when receiving a second call-origination request with the remote identifier, transmits an emergency call-establishment signal with the remote identifier to the network to originate an emergency call in response to the second call-origination request.
Method for performing high-speed initial access process in wireless access system supporting ultrahigh frequency band, and device supporting same
The present invention provides a method for performing an initial access process used in a wireless access system and in an ultrahigh frequency band, and devices supporting same. The method for performing a high-speed initial access process in a wireless access system supporting an ultrahigh frequency band, according to one embodiment of the present invention, may comprise the steps of: receiving a synchronizing signal; receiving a broadcast channel signal; generating a random access preamble by using pre-fixed physical random access parameters according to a small cell supported in the ultrahigh frequency band; and transmitting the generated random access preamble on the basis of the synchronizing signal and the broadcast channel signal.
Media access control protocol for multiuser detection enabled ad-hoc wireless communications
A method is disclosed for increasing the communication capacity of a shared ad-hoc wireless channel by using multiuser detection (MUD) to distinguish overlapping information transmitted simultaneously by a plurality of nodes. The transmitting nodes simultaneously provide parameter-estimating signals over separate, unshared, low-rate parameter channels generated using orthogonal frequencies, spread spectrum technology, or time multiplexing. Receiving nodes use these separate, non-overlapping parameter-estimating signals to estimate MUD-required signal parameters such as amplitude, phase, and frequency offset, thereby enabling use of lower complexity MUD receivers, because the parameters are not estimated in the presence of other interference. Node ID, spreading code type, and/or other information can also be transmitted over the parameter channels. Limiting the number of parameter channels can limit the maximum number of transmitting nodes. Amplitudes of parameter channel transmissions can be greater than communication channel transmissions by a known ratio. Parameter channels can be frequency-hopped for jam-resistance.
Small data communications in a wireless communication network
Technology for performing small data transmissions at a user equipment (UE) is disclosed. An apparatus of the UE can receive, from an eNodeB, a small data transmission indicator that instructs the UE to establish a fast radio resource control (RRC) connection with the eNodeB. The apparatus of the UE can initiate a random access channel (RACH) procedure in order to establish the fast RRC connection with the eNodeB. The fast RRC connection may not include the establishment of bearers between the UE and the eNodeB. The apparatus of the UE can perform a small data transmission with the eNodeB using the fast RRC connection between the UE and the eNodeB.
Mobile communication system, base station apparatus, mobile station apparatus and communication method
MS receives a radio resource control signal including first information used for indicating an uplink component carrier (UCC), UCC being used for transmitting channel state information (CSI) on PUCCH. MS receives second information on PDCCH in a first downlink component carrier (DCC), second information being used for scheduling of a PUSCH in the UCC, the first DCC being one of the plurality of DCCs and corresponding to the UCC. MS transmits CSI on PUCCH in the first UCC, the CSI being for a second DCC, the second DCC being one of the plurality of DCCs. MS transmits uplink data and CSI on PUSCH in the UCC in a case that the PUSCH in the UCC is scheduled by using second information. MS receives ACK/NACK for transmission on PUSCH, ACK/NACK being received on a physical HARQ indicator channel in a same DCC as the first DCC in which second information is received.
Method and device for transmission scheduling
A scheduling device (200) for User Equipments, UEs (130), in a first cell (120) in a cellular (100), arranged (202) to receive information regarding one or more other cells (125) in the cellular communications network (100) that should be given interference protection against transmissions from UEs (130) in the first cell (120) during one or more specified future TTIs. The scheduling device (200) is also being arranged (202) to receive information regarding interference that transmissions from UEs (130) in the first cell (120) cause in the one or more other cells (125), and to classify UEs (130) in the first cell (120) according to said interference caused by transmissions from said UEs (130) in cells (125) that should be given interference protection in said one or more specified future TTIs, and to schedule transmissions from UEs (130) in the first cell (120) in future TTIs with respect to said classification.
Data scheduling method and device
Embodiments of the present invention disclose a data scheduling method and a data scheduling device, which is configured to: receive channel quality information sent by a first terminal; calculate a current instantaneous scheduling rate of the first terminal on a first component carrier by using the channel quality information; acquire an average scheduling rate of the first terminal on the first component carrier; calculate a scheduling priority of the first terminal on the first component carrier by using the instantaneous scheduling rate and the average scheduling rate; and allocate a physical resource of the first component carrier to the first terminal. In this way, a multi-carrier terminal is enabled to obtain a stable high rate, differentiation between terminals is achieved.
Radio communication devices and methods for operating radio communication devices
A radio communication device is described having a first transceiver configured to transmit and receive signals in accordance with a Cellular Wide Area radio communication technology; a second transceiver configured to transmit and receive signals in accordance with a Short Range radio communication technology or a Metropolitan Area System radio communication technology; a first processor configured to control the first transceiver to transmit signals during a transmitting period, the transmitting period comprising a first time period, during which signals are transmitted, and a second time period, during which no signals are transmitted; and a second processor configured to control the second transceiver to transmit signals taking into account the transmitting period of the first transceiver such that the second transceiver transmits signals at least partially during the second time period.
Scaled symbols for a self-contained time division duplex (TDD) subframe structure
In an aspect of the disclosure, a method, a computer program product, and an apparatus are provided. The method may be performed by a scheduling entity. The scheduling entity transmits control information in a control portion of the subframe, the control information corresponding to data information within the subframe, transmits the data information in a data portion of the subframe, receives a pilot signal from the set of subordinate entities in a pilot portion of the subframe, and receives an ACK/NACK signal from the set of subordinate entities in an ACK portion of the subframe. The ACK portion is subsequent to the pilot portion of the subframe. The ACK/NACK signal includes acknowledgment information corresponding to the data information. The control portion, the data portion, the pilot portion, and the ACK portion are contained in the same subframe.
Resource block structure and control in a wireless OFDM communication system
A wireless communication device uses an Orthogonal Frequency Division Multiplex (OFDM) resource block structure. The wireless communication device generates and stores data for wireless transmission. The wireless communication device translates an identifier and a current time into one or more OFDM resource blocks that are reserved for use without base station scheduling. The wireless communication device generates one or more authorization marks. The wireless communication device wirelessly transmits the data and the one or more authorization marks in the one or more OFDM resource blocks that are reserved for use without base station scheduling.
Systems and methods for performing network configurable access and data transfer procedures
Mobile originated and terminated data transmissions are discussed. Communication devices such as user equipment (UE) can be dynamically configured by a network to send and receive data. When a UE connects to a new network, the network can determine mobility of the UE and/or the network resource allocation granularity. Based at least on the network's determinations, the UE can be configured such that access data having a comparatively long life span is used and reused for multiple data transmissions. In some scenarios, access data can be refreshed after expiration of a period of time. Refresh time can be equal to expected life span of reusable access data. After UE configuration, the UE performs mobile originated and terminated data transmissions according to the configuration. Other aspects, embodiments, and features are also claimed and described.
Multiband signal processing apparatus and method
The present invention discloses a multiband signal processing apparatus and method. The apparatus includes a multi-tone local oscillator signal generating unit and a multi-tone local oscillator signal transmission channel, where the multi-tone local oscillator signal transmission channel includes a band-pass filter and a frequency mixer. The multi-tone local oscillator signal generating unit is configured to generate a multi-tone local oscillator signal according to frequency response information of at least one device included in the multi-tone local oscillator signal transmission channel; the band-pass filter is configured to filter the received multi-tone local oscillator signal to obtain a filtered multi-tone local oscillator signal; and the frequency mixer is configured to perform frequency mixing on the multiband signal and the received multi-tone local oscillator signal.
Allocation of carriers between base stations with overlapping coverage based on a comparison of their respective backhaul capacities
A controller may use allocate a set of carriers between two or more base stations based on the respective backhaul capacities of the base stations. An example method involves determining a first backhaul capacity of a first base station, determining a second backhaul capacity of a second base station, and allocating carriers of a set of carriers between the first base station and the second base station based at least one a comparison between the determined first backhaul capacity and the determined second backhaul capacity.
Fast wireless local area network communication method and apparatus using multiple transfer rate partitioning and cooperative transmission
A wireless local area network (WLAN) communication method and apparatus using multiple transmission speed partitioning and cooperative transmission are disclosed. The WLAN communication method includes transmitting, by access point to the nodes, transmission time slots, partitions and internal transmission priorities using transmission time slot information, partition information and internal transmission priority information, receiving uplink packet from one node, determining whether downlink data to be transmitted to the high speed or the low speed node is present, or not in the download queue, transmitting, if present, the downlink packet to the nodes, removing downlink data from the download queue for ACK, and transmitting, if not present, transmitting ACK to the nodes.
Method and apparatus for configuring SRS resource for cooperating cells
Disclosed are a method and apparatus for configuring Sounding Reference Signal (SRS) resource of cooperating cells. The method includes: grouping all cells into different cell groups; determining a SRS initial time domain resource configuration order of each cell group; determining a SRS resource grouping policy of the cells according to state information of user equipments; and configuring SRS resources for the user equipments accessing each cell according to the SRS initial time domain resource configuration order and the SRS resource grouping policy.
Radio communication system, radio station, radio terminal, network apparatus, bearer control method, and computer readable medium
A radio terminal (3) has a function of establishing a second radio connection on a second cell (20) operated by a second radio station (2) while a first radio connection on a first cell (10) operated by a first radio station (1) is established. The first radio station (1) sets up a control bearer for transferring at least a control signal regarding the radio terminal (3) between an upper network (4) and the first radio station (1). Further, the first radio station (1) is configured to trigger setup of a second bearer for transferring user data of the radio terminal (3) between the upper network (4) and the second radio station (2). It is thus for example possible to enable a single radio terminal to simultaneously set up bearers on cells of a plurality of radio stations, in order to achieve carrier aggregation of cells operated by different radio stations.
Method of reporting information on UE state performed by UE in wireless communication system and device for supporting said method
A method of reporting information on a UE state performed by UE in a wireless communication system is provided. The method includes: generating information on a UE state; transmitting the information on the UE state to a network; obtaining, from the network, configuration information generated based on the information on the UE state; and operating based on the configuration information. The information on the UE state includes at least one of UE activity specifying a frequency at which a UE communicates with the network, and an activity state of the UE determined based on the UE activity.
Method for sending and receiving system information, base station, and user equipment
The present invention provides a method carried out by a base station, including: a step (S320) of generating a code sequence containing system information of the base station; a step (S330) generating, by modulating the code sequence, a physical broadcast channel (PBCH) sequence including a distributed PRB frequency division multiplexing format or a centralized PRB frequency division multiplexing format; a step (S340) of selecting a physical resource block (PRB) for a PBCH contained in the PBCH sequence; and a step (S350) of carrying out mapping between the PBCH and a resource element (RE) in the PRB thus selected. The present invention also provides (i) a method carried out by a user equipment, (ii) a corresponding base station, and (iii) the corresponding user equipment. According to the present invention, it is possible to increase energy use efficiency of an LTE-Advanced system, improve spectral efficiency, and reduce inter-cell collision of time/frequency resources.
Radio access technology selection in a heterogeneous network
A technology for a user equipment (UE) in a multiple radio access technology (multi-RAT) heterogeneous network (HetNet) that is operable to provide node-selection measurement information to a central controller. Node-selection measurement information can be determined at the UE for a plurality of nodes in the multi-RAT HetNet. The node-selection measurement information can be communicated from the UE to the central controller. A multi-RAT HetNet node grouping assignment can be receive for the UE from the central controller based on the node-selection measurement information.
Method of transmitting RRC messages in RRC-idle mode
In a wireless communication system, different preambles are provided for transmitting RRC messages in the RRC-connected mode and in the RRC-idle mode. When a user equipment operating in the RRC-idle mode is required to transmit a single RRC message, the single-transmission preamble is used for transmitting the single RRC message without establishing an RRC connection.
Methods and systems for configuring overlapping MBMS configurations on multiple carriers
Embodiments described herein provide methods and systems for enabling MBMS transmission in at least one MBMSFN area. The method can include determining a first MBMS configuration comprising at least a first MBSFN subframe configuration for MBMS transmission on a first carrier frequency, and a second configuration comprising of at least a second blank or partly blank subframe configuration on a second carrier frequency, wherein at least one first MBSFN subframe at least partly overlaps in time with at least one second subframe. The method can further include configuring a second network node with the first MBMS configuration for MBMS signal transmission on the first carrier frequency. The method can further include configuring a third network node with the second configuration on the second carrier frequency.
Method and apparatus for providing notification
An electronic device is provided. The electronic device includes: a transceiver configured to communicate with at least one wearable device and receive, from the at least one wearable device, status information indicating whether the at least one wearable device is currently being worn; and a processor configured to determine whether to send a notification request to the at least one wearable device based on the status information received by the transceiver.
Local area network assisted positioning
A system and method of locating a position of a wireless device in range of one or more base stations. Three signals are received that each contain a unique identifier for a base station. An estimate of the distance between the wireless device and each base station is performed. Previously determined locations for each base station are referenced. At least one of the three base stations is capable of communication to remote locations and unavailable to the wireless device for communication to remote locations.
System and method for providing mobility management and out-of-coverage indication in a conventional land mobile radio system
The present disclosure provides a system and a method for providing mobility management and out-of-coverage indication in a conventional Land Mobile Radio (LMR) system. A radio provides its location and user group data to the disclosed system through its traffic channel when the channel is idle. Knowledge of the radio's current location and user group data is used to provide dynamic call routing and data management within the disclosed system. The disclosed system and method may provide operability similar to that of a trunking system by providing mobility management and out-of-coverage indication while providing low-cost benefits through operation of a conventional system.
Cluster based communication
A method of a wireless communication device comprised in a cluster of devices is disclosed. The devices of the cluster are associable with a cluster subscription identifier of a subscription providing communication between a network node and the cluster (based on a single identifier associated with the cluster) when one or more of the devices are in a cluster communication mode. The wireless communication device may have one of a cluster communication gateway role and a cluster internal communication role. The cluster communication gateway role comprises transmitting a cluster communication beacon signal, maintaining a communication link to the network node, and maintaining peer-to-peer communication links to the other devices of the cluster. The cluster internal communication role comprises maintaining at least a peer-to-peer communication link to a specific device having the cluster communication gateway role. A received signal is scanned for a beacon signal and (if the beacon signal is found) it is determined, based on the cluster subscription identifier, whether the beacon signal is associated with the subscription. If the beacon signal is associated with the subscription, the identity of the specific device is determined based on the beacon signal, a cluster communication attach request is transmitted to the specific device, and a cluster communication attach response is received from the specific device. If the cluster communication attach response comprises a cluster communication attach acknowledgement, the wireless communication device transfers to the cluster communication mode and assumes the cluster internal communication role.
Method and apparatus for utilizing mobile subscriber identification information with multiple devices based on registration requests
Aspects of the subject disclosure may include, for example, a system that manages utilization of mobile subscriber identity information including enabling use of such information by different communication devices. The use of the same mobile subscriber identity information by multiple devices can be based on locations and other mobile subscriber identity information can be assigned to devices based on the locations. Other embodiments are disclosed.
Multiple carrier attachment establishment and maintenance
Systems and methods are described herein that facilitate attaching a mobile station to a target wireless network through a physical connection between the mobile station and a supporting wireless network. Uplink and downlink channels between the mobile station and the target wireless network tunnel through the supporting wireless network. The systems and methods described herein thereby enable a mobile station with a single transceiver to become simultaneously attached to multiple wireless networks. The systems and methods described herein further support the handover of a mobile station from a generic access component of a mobile network to a radio access component and the handover of a mobile station from a radio access component of a mobile network to a generic access component of the mobile network thus facilitating rapid transitions from one mobile network air interface to another.
Tracking systems and methods for remotely tracking a location of a person on a map of a monitored premise
Techniques tracking, monitoring, updating, and displaying location and related information based on telemetry information received from mobile devices carried in the field. Each tracked entity (e.g., person, robot) carries or is associated with a mobile device. When a mobile device enters within range of a checkpoint associated with a known position, the mobile device notifies a central server or other system (e.g., a peer device), which then makes the received information (or information derived therefrom) available to other devices and/or systems. In some cases, the checkpoint devices are wireless network access points, such as Wi-Fi routers, access points, media device, or the like.
Power reduction techniques for dual-SIM devices
Techniques are disclosed relating to reducing power consumption in dual-SIM devices. In some embodiments, a UE includes at least two SIMs, including a home SIM and a configurable SIM. In this embodiment, the UE is configured to register, using a first protocol stack, the configurable SIM with a local network. In these embodiments, the UE is configured to determine if the local network is an available network for the home SIM. In these embodiments, the UE is configured to register, using the first protocol stack, the home SIM with the local network in response to determining that the local network is an available network for the home SIM. In these embodiments, the UE is configured to monitor, using the first protocol stack, for pages for each of the home SIM using the identifier of the home SIM and the configurable SIM using the identifier of the configurable SIM.
Method and apparatus of sleep mode operation in a multi-carrier system
A method is presented for a mobile station operating in a wireless communication system. The mobile station receives configuration information for power management from a base station. The configuration information informs the mobile station a first time period during which the mobile station monitors signals from the base station and a second time period during which the mobile station does not monitor signals from the base station. The mobile station applies the configuration information for power management to one or more primary carriers and one or more activated secondary carriers. The mobile station receives downlink data from the base station via the one or more primary carriers and the one or more activated secondary carriers during the first time period. The mobile station receives a specific Medium Access Control (MAC) message from the base station, wherein the mobile station stops the first time period when receiving the specific MAC message.
Wireless communication system, and wireless communication method in wireless communication system
In a wireless communication system, a master device includes a wireless communicator that performs wireless communication with the slave device, a power supply that supplies power to each unit of the master device, an interrupt detector that detects various interrupts, and a controller that controls the entire master device, the interrupt detector supplies power from the power supply to each unit when detecting the interrupt, and the controller performs control to continuously transmit a capture signal to the slave device that waits for reception at a reception timing of a first predetermined interval, via the wireless communicator for time longer than the first predetermined interval when the detected interrupt is an interrupt that requests signal transmission to the slave device, and control to await a capture signal transmitted from the slave device through the wireless communicator when the detected interrupt is a timer interrupt occurring at a second predetermined interval.
Combining power from electrically isolated power paths for powering remote units in a distributed antenna system(s) (DASs)
Embodiments disclosed herein include combining power from isolated power paths for powering remote units in distributed antenna systems (DASs). In one example, a remote unit(s) is configured to include multiple input power ports for receiving power from multiple power paths. The received power from each input power port is combined to provide a combined output power for powering the remote unit. Thus, a remote unit can be powered by the combined output power. To avoid differences in received power on the multiple input power ports causing a power supply to supply higher power than designed or regulated, the input power ports in the remote unit are electrically isolated from each other. Further, the received power on the multiple power inputs ports can be controlled to be proportionally provided to the combined output power according to the maximum power supplying capabilities of the respective power supplies.
Methods for assisting mobile communication devices in connecting to an access point (AP), and mobile communication devices and base stations using the same
A mobile communication device is provided with two wireless modules and a controller module. The first and second wireless modules perform wireless transmission and reception using a telecommunication technology and an SRW technology, respectively. The controller module receives distance information of one or more APs, or location information of the APs and the base station, from a base station via the wireless module, and determines a first distance from the mobile communication device to the base station according to an uplink timing adjustment received from the base station via the wireless module. Also, the controller module determines one or more second distances from the APs to the base station according to the received distance information or location information, and scans for the APs which have the corresponding second distances approximate to the first distance, to connect to one of the scanned APs via the second wireless module.
Embedded millimeter-wave components
Various systems and methods for facilitating operation of a millimeter-wave communication component in conjunction with another component, in which the millimeter-wave communication component is mechanically fixed to or with the other components and is therefore oriented in a certain direction that is not necessarily aligned with a target node. The embedded millimeter-wave communication component compensates for said orientation by steering, electronically, a millimeter-wave beam toward the target node. The millimeter-wave communication component may be embedded in or with the other component using a built-in connector, or it may be a-priori embedded in or with the other component.
In-flight cellular communications system coverage of mobile communications equipment located in aircraft
A network node of a terrestrial cellular system provides telecommunications service to a user equipment (UE) in an airborne aircraft. Navigation information transmitted from the aircraft is periodically acquired, including aircraft identity, position, altitude, and a time of determining aircraft position. A link is maintained between the network node and the UE by transmitting beam steered, Doppler shift compensated downlink signals, and by performing beam steered reception of uplink signals. Beam steering is directed toward the aircraft based on the navigation information. Doppler shift compensation is adapted to compensate for a Doppler shift such that the UE experiences a nominal carrier frequency when receiving transmissions from the antenna nodes. Handover from a first to a second coverage area includes using a same cell identifier and a same frequency allocation in the second coverage area as are used in the first.
Measuring connection signal strength
Approaches are described which enable a user equipment (UE) device (e.g., mobile phone, tablet computer) to measure signal strength of neighboring cells in a cellular network based at least in part on direction and/or location information of the UE device. The computing device may determine, based on location and/or direction information, that the device is moving away from a neighboring cell and either stop measuring the signal strength or reduce the rate of measuring the signal strength of that neighboring cell. This selective measuring can enable computing devices to conserve battery power and reduce processing overhead when moving between cells of a cellular network.
Signaling for mobility and mobility state estimation
Methods and apparatus, including computer program products, are provided for signaling. In some example embodiments, there is provided a method. The method may include making mobility information including visited cell history available based on at least received mobility state estimation configuration information; and reporting, by the user equipment, the mobility information including the visited cell history. Related systems, methods, and articles of manufacture are also disclosed.
Apparatus and method for management of service requests in an overload environment
A system that incorporates the subject disclosure may include, for example, responsive to a determination that a number of failed service requests directed to a first access technology exceeds a threshold for a maximum number of failed service requests, performing cell selection associated with a second radio access technology during an overload mitigation time duration; and responsive to a determination of an expiration of the overload mitigation time duration, transmitting additional service requests associated with the first radio access technology. Other embodiments are disclosed.
Mobility pattern based preemptive load balancing
Maps of high wireless device movement and high wireless device traffic are created. These maps are correlated over selected periods of time to determine when, and where, large numbers of wireless devices are both moving and creating problematic traffic. Stationary wireless devices using an access node in the problem area are identified before the selected time period (e.g., 30 minutes before commuting time). These stationary wireless devices are handed over to a reserved frequency band. During the selected time period, wireless devices requesting access in the problem area are denied access using the reserved frequency band and are instead forced to use another frequency band.
Wi-Fi calling using SIP-IMS handset and evolved packet data gateway
Wi-Fi calling using a mobile device and an evolved packet data gateway (ePDG) is described herein. For example, a mobile device may determine whether any LTE coverage is available, whether data roaming is available, whether a visited public land mobile network (VPLMN) is available, and whether a DNS query to a visited ePDG (VePDG) is successful. The mobile device may connect to the VePDG responsive to a determination that LTE coverage is available, that data roaming is available, that a VPLMN is available, and that the DNS query to the VePDG is successful. Otherwise, the mobile device may connect to a home ePDG (HePDG).
Cell information transmission system, base station, cell information transmission method, and cell information transmission program for differentiating content of a neighbor cell list
In a wireless communication system, information about neighbor cells does not necessarily include information about all neighbor cells; instead, the movement history of each mobile station is taken into consideration when information about cells is included. Provided is a base station for performing wireless communication with a mobile station, the base station differentiating, according to the content of the movement history of the mobile station that moved into a cell under control of the base station, the content of a neighbor cell list as used by the mobile station.
Radio network node, a user equipment and methods therein
A radio network node (RNN) (202) and a method therein, for handling of changing primary cell from a first cell (204) to a second cell (206) during re-selection of primary cell of a user equipment (UE) (208). The RNN is configured to serve the first cell, the UE is located within the first cell and is served by the RNN, and RNN and the UE are comprised in a communications system (200). The RNN transmits an RRCConnectionReconfiguration signal to the UE, which signal comprises an indication that the UE does not need to perform a random access procedure for the second cell when changing primary cell from the first cell to the second cell.
Method for transmitting downlink signal of user equipment having dual connectivity in heterogeneous cell environment
Disclosed are a transmission method and a base station comprising: user equipment confirming a handover to be performed; transmitting to a macro cell a data forwarding request message for requesting forwarding of downlink data of a small cell to the user equipment, when the user equipment can establish an X2 or S1 interface with the macro cell to perform the handover; receiving from the macro cell a data forwarding response message for indicating establishment of a wireless bearer with the macro cell; and transmitting the downlink data to the macro cell through the established wireless bearer, based on the data forwarding response message.
Method and apparatus for managing a call during a handover procedure in a communications system
A method for managing a call during a handover procedure in a communications system is disclosed. The method is used in a user equipment (UE). The method includes: receiving a request for disconnecting a voice call from an end user; determining whether a Single Radio Voice Call Continuity (SRVCC) or Reverse Single Radio Voice Call Continuity (rSRVCC) handover procedure is being performed; and performing an action for the voice call when the request for disconnecting the voice call is received during the SRVCC or rSRVCC handover procedure.
Support for continuity of tunnel communications for mobile nodes having multiple care of addressing
The present invention solves communication disruption problems during the hand-off transition period by using a pre-handoff registration of a new foreign agent on behalf of the mobile node The pre-handoff registration message should: (1) identify itself as a pre-hand off registration message, (2) indicate direction of traffic for the pre-handoff registration time period, and (3) specify a lifetime or time period when the pre-handoff registration request will continue to be considered valid The local mobility anchor will accept traffic using the pre-handoff registration care-of address depending on the directionality indicator, but the communication traffic to or from the mobile node will not be disrupted during the transition period. Because the care-of address for the mobile node on the new foreign network can be used to direct communication traffic to or from the mobile node during this transition time period, no disruption of service will be encountered.
Direct handover method and device
A direct handover method and device are provided. The method comprises: receiving a handover message sent by a source side access network node; selecting a destination side core network node, and sending a handover message to the destination side core network node, so that the destination side core network node obtains context information of a UE from a source side core network node; receiving a handover acknowledge message sent by the destination side core network node. The source side access network node sends the handover message to a destination side access network node, the destination side access network node selects the destination side core network node, and sends the handover message to the destination side core network node, and the destination side core network node requests the context information of the UE from the source side core network node, so as to complete the handover.
Apparatus and method for controlling an occupancy ratio of each region in a buffer
A buffer control device included in a base station apparatus acquires predetermined information regarding data communication between the base station apparatus and external apparatuses other than the base station apparatus. The buffer control device predicts an amount of traffic in the data communication based on the acquired predetermined information, and controls an occupation ratio of each of regions that are arranged in a buffer in association with a plurality of priorities, based on the amount of traffic in the predicted data communication, where the buffer stores pieces of data each of which is assigned one of the plurality of priorities and transmitted within the base station apparatus from a first processing unit to a second processing unit via a high speed serial interface.
Efficient L2 processing and protocol data units wireless communications
Enhanced MAC-es PDUs are created by concatenating enhanced MAC-es service data units (SDUs) based on higher layer PDUs and segments thereof, where segmentation information is included in the enhanced MAC-es headers. An enhanced MAC-e header is generated for each enhanced MAC-es PDU to describe information about the enhanced MAC-es PDU. An enhanced MAC-e PDU is created by concatenating enhanced MAC-es PDUs and enhanced MAC-e headers. An enhanced MAC-es header may include a Transmit Sequence Number (TSN) field, a Segmentation Description (SD) field, length (L) fields to indicate the length of each enhanced MAC-es SDU and/or logical channel indicator (LCH-ID) fields. An enhanced MAC-e header may include one or more logical channel indicator (LCH-ID) fields for corresponding enhanced MAC-es PDUs or MAC-s SDUs and length (L) fields.
System and method for scheduling time-shifting traffic in a mobile cellular network
Aspects of the subject disclosure may include, for example, identifying a data request to transfer data for a mobile device across a mobile network. The data request occurs within a time interval of a number of time intervals, each having a duration greater than a data transfer time across the mobile network. A volume is determined of the data requested, and compared to a data transfer capacity of the wireless access terminal. A transfer of the data is scheduled within the time interval, responsive to the volume of data requested being less than the data transfer capacity. The transfer of the data is deferred to another time interval, responsive to the volume of data requested being greater than the data transfer capacity, and the deferring of the data to another time includes resubmitting the data request in another time interval of the plurality of time intervals. Other embodiments are disclosed.
Wireless device for supporting cellular communications and D2D communications
One disclosure of the present specification provides a wireless device for supporting a first band for cellular communications and a second band for D2D communications. The wireless device may comprising: a main antenna; a first RF chain configured to process a first transmission signal and a second transmission signal wherein the first and second transmission signals are to be transmitted via the main antenna using uplink bands of the first and second bands respectively; a second RF chain configured to process a first reception signal, wherein the first reception signal is received via the main antenna using an uplink band of the second band; a third RF chain configured to process a second reception signal, wherein the second reception signal is received via the main antenna using a downlink band of the first band.
Data collection method, system, and computer product
A data collection method of a system that transmits and receives data by respective communications apparatuses among plural communications apparatuses performing multihop communication, includes suspending transmission of data obtained from a second sensor, a communications apparatus among the plural communications apparatuses suspending the transmission by the second communications apparatus when contents of data obtained from a first sensor of a first communications apparatus among the plural communications apparatuses and contents of data obtained from the second sensor of a second communications apparatus among the plural communications apparatuses are equivalent.
Adaptive packet preamble adjustment
In some examples, an apparatus may be usable in a first network and configurable to operate within a proximity of a second network that communicates traffic that interferes with data communication in the first network. The apparatus may include a calculation module configured to calculate a packet loss rate. The apparatus may include a determination module coupled to the calculation module and configured to determine whether the packet loss rate exceeds a particular threshold level. The apparatus may include a preamble module coupled to the determination module and configured to dynamically adjust a number of protective bytes included in a packet preamble in response to a determination by the determination module that the packet loss rate exceeds the particular threshold level. The protective bytes may be effective to reduce packet corruption due to turnaround time collisions between packets communicated in the first network and traffic communicated in the second network.
Method and apparatus for integrating active test capability to a wireless access point or base station
A method and apparatus for service quality monitoring in a wireless network is provided. The network has both wired and wireless connections, and has at least one access point capable of providing wireless connectivity to client devices. Wireless connectivity is provided to client devices from the access point with at least one client-serving radio transceiver. Radio test signals are generated for network testing from a testing transceiver at the access point.
Minimization of drive tests data and radio link failure information correlation
A method, apparatus, system, and computer-readable medium is provided for performing RLF functionality within a trace functionality. As part of trace functionality, RLF information, in the form of one or more RLF reports, is collected. When MDT information is also collected as part of trace functionality, the RLF information and the MDT information is correlated.
Mobile terminal flow identification method and apparatus
A method is provided for flow identification of a mobile terminal. The method includes obtaining flow data files of the mobile terminal at two or more points of time after the mobile terminal connects to a network using same network access means. The method also includes comparing, from the obtained flow data files, flow volumes in the flow data files having a same flow identifier to determine a flow identifier in the flow data file with changing flow volumes. Further, the method includes, based on the determined flow identifier in the flow data files with changing flow volumes and the network access means used by the mobile terminal to connect to the network, identifying network access means indicated by the flow identifier in the flow data files and obtaining flow identification results.
Methods, apparatuses, and computer program products for out-of-band sensing in a cognitive LTE system
Provided are methods, corresponding apparatuses, and computer program products for performing out-of-band sensing on an unlicensed frequency band. A method comprises sending a configuration message for configuring measurement on at least one channel in a frequency band of a primary system; receiving a measurement report made based upon the configuration message; and determining the usability of the at least one channel based upon the measurement report, wherein the configuration message includes information regarding a respective predetermined threshold of energy detection or primary-system-feature detection, and the measurement report is for reception when a measured energy detection value or a measured primary-system-feature detection value of a received signal on the at least one channel is less than the respective predetermined threshold. With the claimed inventions, the spectrum efficiency would be improved and interference between a secondary system and an LTE system could be alleviated.
Carrier aggregation using unlicensed frequency bands
Carrier aggregation using unlicensed frequency bands. A primary carrier for communication between a base station (BS) and a wireless user equipment (UE) device may be configured according to a first wireless communication technology. The primary carrier may be on a licensed frequency band. A secondary carrier for communication between the BS and the UE may also be configured according to a first wireless communication technology. The secondary carrier may be on an unlicensed frequency band. Channel conditions for each of multiple possible channels of the unlicensed frequency band may be assessed according to a second wireless communication technology as part of configuring the secondary carrier.
Base station and user terminal in spectrum sharing system and method for determining usage of shared spectrum
A base station in a spectrum sharing system includes a sensor configured to sense signals over a shared spectrum, a transceiver configured to receive at least one measurement report transmitted from at least one user terminal regarding signals over the shared spectrum sensed by the at least one user terminal and a processor configured to determine whether to utilize the shared spectrum according to the signals over the shared spectrum sensed by the sensor or acquired from the at least one measurement report. A user terminal in a spectrum sharing system includes a sensor configured to sense signals over a shared spectrum, a processor configured to generate a measurement report regarding the signals over the shared spectrum and a transceiver configured to transmit the measurement report to a base station so that the base station determines whether to utilize the shared spectrum according the signals over the shared spectrum.
System and method for management of spectrum interference rights and secondary use permissions
Granting interference rights to a secondary spectrum user that has a need for spectrum access to carry out wireless communications includes receiving a spectrum access request from the secondary user and determining a primary user that has a protected use area that overlaps with a secondary use area of the secondary user. A quantified predicted amount of interference that operation of the secondary user has on the primary channel of the primary user is determined and spectrum access to a primary channel of the primary user under interference rights is authorized if the quantified predicted amount of interference has less than a predetermined amount of effect on the primary channel of the primary user. The spectrum access is communicated to the secondary user.
Method and apparatus for detecting unauthorized access point
There is provided a method and apparatus for detecting an unauthorized access point. The method for detecting an unauthorized access point according to an embodiment of the present disclosure includes making an attempt to deliver, through an access point to a validation server, a message that includes network information regarding a network access of a terminal device and requests a validity verification of the network information; and determining that the access point is unauthorized when a response indicating that the network information is valid is not received from the validation server. According to the embodiment of the present disclosure, it is possible to implement a device for determining an unauthorized access point device in a general manner, independent of a specific device.
Secure adaptive device locking
Systems and methods for configuring user equipment (UE) for use with compatible subscriber identity modules (SIMs) is disclosed. The UE can include a UE SIMLock configuration containing one or more UE parameters and a value for each category. A compatible SIM can include a SIM configuration with compatible SIM values. The UE can request a UE SIMLock configuration from one or more telecommunications network devices using secure communications. The UE can receive a UE SIMLock configuration from the telecommunications network device. The UE SIMLock configuration can be applied to the UE modem governing SIMLock engine behavior. The UE SIMLock configuration can be updated dynamically with subsequent messages from the telecommunications network device to reflect changes in the account associated with the UE, such as the fulfillment of a contract or theft of the UE.
Dynamic unlock mechanisms for mobile devices
An access control application for mobile devices is provided. The access control application may be configured to generate a set of security tasks based at least in part on information corresponding to a user's interactions with the mobile device. An unlock screen of the mobile device may be triggered and a security tasks from the generated set of security tasks may be displayed through a user interface of the mobile device. The user's response to the security tasks may be obtained and a confidence score may be calculated, based at least in part on the response. The access control application may then determine, based at least in part on the score and one or more attributes of the environment, whether to unlock the mobile device or prompt the user to provide an additional response to another security task.
DTMF token for automated out-of-band authentication
Methods, systems, and media for facilitating an automatic out-of-band authentication process that includes a DTMF token. The process involves receiving an authentication token via one network and automatically sending the token back through a different network. In some cases, the process may be performed without the need for any human interaction. One of the tokens is a DTMF signal that may be sent on its own or during a voice communication session over the audio path established for the session.
Communication system, communication method, network side communication device and communication terminal
Disclosed is a technique for performing flexible service-level access control in real-time while suppressing occurrence of signaling. According to the technique, a network entity (AAA server 10) configured to perform access control sets correspondences between addresses of a communication terminal (UE) 40 and respective service contents of services that the communication terminal 40 receives, and notifies the communication terminal of the correspondences. Thus, the communication terminal is able to know the service contents corresponding to the addresses that the communication terminal uses. In a case where a service content of a service that the communication terminal receives is changed, the address used by the communication terminal is changed to an address corresponding to the changed service content. As a result, from the changed address, the communication terminal is able to know that the service content has been changed and to know the changed service content.
Methods and apparatus of evolved node B and user equipment for capability information setting
Systems, apparatus, user equipment (UE), evolved node B (eNB), mobility management entities (MME), and methods are described for UE capability information setting. One example embodiment operates to set first UE capability information in an initial attach procedure; identify a temporary operating mode for the first UE associated with a second set of UE capability information; and change the capability information to a second set of UE capability information associated with the temporary operating mode. Various embodiments may signal between a UE, an eNB, and a MME to enable use of different sets of UE capability information for different temporary operating modes.
Reconfiguring wireless device capability and performance
A method includes configuring a device, which is capable of operating in accordance with a first capability level, at a second capability level that is less than the first capability level. The method also includes identifying a problem or situation in which the first capability level is needed and reconfiguring the device to operate in accordance with the first capability level, in response to identifying the problem or situation. The method may further include determining that the problem or situation has been resolved and configuring the device to operate in accordance with the second capability level, in response to determining that the problem or situation has been resolved.
Method and apparatus for improved mobility estimation based on a scaling factor
An apparatus, method, and computer program product for mobility estimation are provided. One method may include estimating a mobility state of a user equipment, and scaling the estimate of the mobility state according to certain factors. The factors may include, for example, a DRX cycle applied during the period of estimation of the mobility state and the number of cell changes of the user equipment.
Global network communication system
When a wireless device is outside of its home service area, the device typically has to use expensive roaming data or phone services. However, as herein described, a global SIM may be inbuilt into a device, plugged into a second SIM port of the device, or may be added onto a device through one of the existing ports of the device. The global SIM allows the user to register for a service plan with a local service provider when in a foreign country. A software application on the wireless device can control the selection and purchase of local service plans, as well as control the switching of SIM data to ensure that a local SIM is used when traveling. The global SIM is capable of storing multiple registered service plans and the necessary data for the wireless device to operate as a local device when outside of the home service area.
Personal security system
A method for providing assistance to each of a plurality of users, each having been enrolled as a member of a community includes receiving, at a server, communications from corresponding mobile devices, each of which is associated with a user who has enrolled as a member in a first community. These emergency communications were initiated by activation of respective personal security buttons on the mobile devices, and provide information about respective security conditions. In response to the communications, the server alerts corresponding first and second security services that are appropriate responding to the respective security conditions.
Mobile phone as a handheld radio transmitter and receiver over non-cellular radio frequency channels
A system enables a device such as a mobile phone to operate as a transmitter and receiver over non-cellular radio frequencies such as very-high frequency (VHF) and ultra-high frequency (UHF) not natively compatible with the mobile phone. The system includes a radio appliance coupled to a radio that receives and transmits information over non-cellular radio frequencies. The radio appliance provides an interface between the radio and a web appliance accessible on a network such as the internet. The radio appliance receives information in broadcast from the radio and transmits the information to the web appliance over the network. The web appliance provides mobile devices access to the information received from the radio appliance, such as audio that was broadcast, over the network. Additionally, the web appliance may receive information from the mobile phone for transmission to the radio appliance and subsequent broadcast by the radio.
Mobile device executing face-to-face interaction monitoring, method of monitoring face-to-face interaction using the same, and interaction monitoring system including the same, and mobile interaction monitoring application executed on the same
Disclosed herein is a mobile face-to-face interaction monitoring device and method using the same and system including the same, for supporting accurate and efficient turn monitoring. One embodiment of the mobile face-to-face interaction monitoring device may comprise a conversation group detector for scanning mobile devices in a surrounding area and setting a conversation group, a turn detector for determining (conversational) turn using volume topography created based on sound signals detected in the mobile devices in the conversation group, and a meta-linguistic information processor for extracting meta-linguistic context of participants or interactants in the conversation group based on the turn. Other embodiments are described and shown.
Method and device for extending detection surfaces interfacing a plurality of mobile entities with a computer system
A control method, in a system including a detection surface interfacing a plurality of mobile entities with a computer system, the detection surface including a plurality of elementary detection surfaces forming groups and sub-groups, wherein at least one mobile entity is registered with management modules of at least two different sub-groups, a period of time reserved for the at least one mobile entity registered with management modules of at least two different sub-groups, enabling the activation of at least one mobile entity, being the same in each of the at least two sub-groups.
Using location-based request data for identifying beacon locations
System and method are directed towards determining an approximate location of a cell tower (CT), using at least implicit location information obtained from a plurality of mobile devices obtained while each mobile device user employs a location based application. Also obtained are CT identifiers associated with a cell tower each mobile device is currently employing. When a sufficient number of mobile devices provide implicit location information for a given CT identifier, an approximate location may be determined. Subsequently, when a mobile device provides a CT identifier for which an approximate location has been determined, the approximate location information may be used to assist the user of the mobile device. For example, the user might access a location based application and automatically have an approximate location of the user's mobile device be provided to the application transparent to the user.
Quantifying mobility of mobile devices via a privacy preserving mobility metric
Embodiments of the invention generate metrics quantifying the mobility of a mobile device without persisting information related to the device's specific location at any given time. Specifically, at multiple intervals, a value of a mobility metric is computed based on the distance between the current location of the mobile device and a previously identified origin location of the mobile device. The values of the mobility metric computed over a period of time quantify the overall mobility of the mobile device. The mobility metric does not provide any information regarding the specific location of the mobile device at any given time.
Methods and apparatus for efficient transport and management of a positioning and timing almanac
A method and apparatus for reporting almanac versions and almanac identification by a mobile station to a server is provided. The server compares the almanac version and almanac identification held by the mobile station with almanac versions and almanac identifications held by the server. The server then sends instructions to the mobile station to match the server versions of the almanac versions and almanac identifications for the almanac versions and almanac identifications that the mobile station should hold.
Network-initiated control method and apparatus for providing proximity service
The present invention relates to a wireless communication system. More particularly, disclosed are a network-initiated control method and an apparatus for providing a proximity service (ProSe). A method for supporting ProSe between a plurality of terminals at a network node of a wireless communication system according to one embodiment of the present invention comprises: a step of acquiring base ProSe information from one or more of the plurality of terminals or from one or more of other network nodes; a step of allowing the network node to detect whether ProSe is enabled between the plurality of terminals based on the acquired base ProSe information; and a step of transmitting information indicating whether ProSe is allowed or not to one or more of the plurality of terminals.
Detecting stowing or unstowing of a mobile device
A mobile device can communicate with a wearable device to automatically detect when a stowed mobile device becomes unstowed and/or when a mobile device that is in use become stowed. Detection of stowing or unstowing of the mobile device can be based on comparison of data from sensors such as proximity sensors, motion sensors, and/or other environmental sensors between devices. When unstowing is detected, the mobile device can prepare itself for use based in part on context information provided by the wearable device, e.g., by activating a user interface component and/or launching an app based on the context information. When stowing is detected, the mobile device can inactivate a user interface component.
Proximity beacon management using a network device
Management of a proximity beacon transmitter using a network device. Operational characteristics are generated for a proximity beacon transmitter coupled to a network device. The proximity beacon is configured through the network device. It is determined if the proximity beacon transmitter is operating according to the operational characteristics generated for the proximity beacon transmitter. The proximity beacon transmitter is reconfigured to operate according to the operational characteristics if it is determined that the proximity beacon transmitter is operating in nonconformity with the operational characteristics.
System and method for wireless communications activity within a predetermined area and for generating messages to selected communication devices
A system and method is disclosed for detecting the presence and level of wireless communications activity within a predetermined area, without disclosing the identity of the wireless users, and for generating a message to certain information and communications devices in response to the detection of a predetermined level of wireless communications activity within the predetermined area. The information detected also may include information relating to the general direction and rate of movement of detected wireless devices. The message generated in response to the detection of wireless communications activity may include wireless messages, including Short Message Service (SMS) messages, to persons desiring or needing to receive such information; messages to public officials and other interested persons; and automatic signals to devices such as computers, computer networks (including the internet and wireless networks), facsimile machines, signs, lights, loudspeakers, and other devices providing information through other communication and information media.
Methods and apparatus for creating an individualized record of an event
Embodiments of the invention are directed to capturing a record of an event which is individualized to a specific event attendee. Event attendees carry a wearable device configured to periodically transmit a payload that may, for example, include an identifier for the wearable device. The device's transmissions may be received by one or more receiver components located at the event venue. Each receiver component may have one or more associated content capture components configured to capture content (e.g., video, audio, text, etc.) relating to the event as it is ongoing. The location of each receiver component over time is known, and so receipt of transmissions from the wearable device by different receiver components over time indicates an approximate location of the attendee over time, and thus the vantage point(s) from which the attendee witnessed the event. The attendee's location over time may be correlated with content captured from different locations during the same time period to create a record of the event which is individualized to the attendee.
Targeted venue message distribution
An application server may receive, from an administrative console, a message and a targeting specification. The targeting specification identifies at least one trait (e.g., ticket type, age, gender) shared by a group of targeted venue guests. The group of targeted venue guests is a subset of the plurality of venue guests of a venue. The application server then uses information obtained from venue guest devices corresponding to venue guests to identify who belongs to the group targeted venue guests as well as their corresponding targeted venue guest devices. The application server then transmits a message to the targeted venue guest devices. The message may further be transmitted according to a schedule set or triggers by the administrator console. The schedule may identify dates and times within which messages should be sent, while the triggers may identify locations that may trigger messages.
System and method for detection of indoor tracking units
Disclosed is a system and method for obtaining ad-hoc the spatial layout and setup of installed radio-based indoor tracking systems at particular locations. The systems and methods can be implemented via an installed or web-based application that performs the ad-hoc detection of indoor beacons, which includes detecting the signal strength of all beacons at a location while the user performs a previously configured gesture. From the trajectory of the gesture and the recorded signal strengths, the disclosed systems and methods derive the distance and direction of all beacons, which are laid out in a 2D map. Thus, the present disclosure can implicitly calibrate signal strengths to high-accuracy distances, thereby producing the spatially accurate 2D setup of the previously unknown space, in addition to indoor tracking on a decimeter level, which is efficient and increasingly cost effective for device tracking and advertising purposes.
Mirrorlink with wireless serial bus
A first computing device includes a memory, and at least one processor. The at least one processor may be configured to establish a wireless connection to a second computing device using a Wi-Fi Direct Application Services Platform (ASP), transmit data from a car connectivity consortium (CCC) Information Element (IE) to the second computing device, and establish a MirrorLink session using Universal Plug and Play (UPnP) to the second computing device via the wireless connection. The at least one processor may be further configured to establish a Wireless Serial Bus (WSB) session to the second computing device using the Wi-Fi Direct ASP via the wireless connection, and transmit data via the WSB session to the second computing device.
Methods, devices and computer readable storage devices for guiding an application programming interface request
An application programming interface request is guided to an application server. The application programming interface request is received from a communication device via a communication network. Data indicating a context of the communication network in relation to the communication device is obtained. An application server to which to send the application programming interface request is determined based on the data indicating the context of the communication network in relation to the communication device.
Apparatus and method for supporting QoS service of application in wireless communication system
A method and a system are capable of supporting a Quality of Service (QoS) service in a wireless communication system. The method for supporting the QoS service includes checking a service capability of an application; when the application provides a QoS service, requesting QoS configuration to a QoS server; and when receiving a QoS configuration response signal from the QoS server, checking whether QoS of the application is allocated, in the QoS configuration response signal.
Screen-relative rendering of audio and encoding and decoding of audio for such rendering
In some embodiments, methods for generating an object based audio program including screen-elated metadata indicative of at least one warping degree parameter for at least one audio object, or generating a speaker channel-based program including by warping audio content of an object based audio program to a degree determined at least in part by at least one warping degree parameter, or methods for decoding or rendering any such audio program. Other aspects are systems configured to perform such audio signal generation, decoding, or rendering, and audio processing units (e.g., decoders or encoders) including a buffer memory which stores at least one segment of any such audio program.
Method and apparatus for output signal equalization between microphones
A method, apparatus and computer program product provide an improved filter calibration procedure to reliably equalize the long term spectrum of the audio signals captured by first and second microphones that are at different locations relative to a sound source and/or are of different types. In the context of a method, the signals captured by the first and second microphones are analyzed. The method also determines one or more quality measures based on the analysis. In an instance in which one or more quality measure satisfy a predefined condition, the method determines a frequency response of the signals captured by the first and second microphones. The method also determines a difference between the frequency response of the signals captured by the first and second microphones and processes the signals captured by the first microphone for filtering relative to the signals captured by the second microphone based upon the difference.
Automated equalization of microphones
An automated microphone calibration starts with reference microphone calibration. Measurements are scaled to sound pressure levels (SPLs). The reference microphone is positioned close to the internal microphones and their frequency responses are measured. Then delta calculation is done in selected sub-bands including reference microphone correction and then a correction filter is defined.
Audio synchronization among playback devices using offset information
Embodiments are provided for audio synchronization of one or more playback devices using offset information. A playback device may join a synchrony group upon a command, where the synchrony group may have a group coordinator that provides timing information for the group. In one case, the playback device may retrieve offset information from memory storage, where the information represents the offset between a clock of the playback device and the clock of the group coordinator. In another case, the playback device may determine that the offset information is not available in storage and as a result, the offset information may be computed. In one instance, the offset information may be computed using other offsets obtained from storage, such as offsets between other devices in the synchrony group. In another instance, the offset information may be computed using SNTP polling.
Instrument with remote object detection unit
The present disclosure relates to an apparatus having a directional microphone system having adaptable directionality and a remote object detection unit configured to detect a remote object by detecting a transmitted signal reflected from the object, the directionality of the directional microphone system may be modified or adapted based on the detection of the remote object.
A speaker is disclosed. The speaker includes a magnetic circuit system; a vibration system including a vibrating diaphragm, a voice coil for driving the vibrating diaphragm, and a silicone gel spider elastically supporting the voice coil. The speaker further includes a high temperature resistant support ring attached with the voice coil and the silicone spider.
Vibrating diaphragm structure and method of manufacture thereof
A vibrating diaphragm includes a diaphragm body and a suspension edge. The diaphragm body is made by acrylonitrile butadiene styrene materials. A surface of the diaphragm body is electroplated a layer of nanoscale materials. The suspension edge is made by room temperature vulcanized silicone rubber materials. The suspension edge is molded an outer periphery of the diaphragm body. The vibrating diaphragm can improve the high frequency effect of the speaker.
Customization of a vehicle audio system
Embodiments are provided for customizing an audio system of a vehicle. An example computing device for customization of an audio system of a vehicle includes a display configured to present a user interface, a processor, and a storage device storing instructions executable by the processor to generate the user interface for presentation via the display, and receive user input to the user interface requesting one or more adjustments to an audio system, the one or more adjustments including instructions to tune an amplifier of the vehicle by adjusting digital signal processing (DSP) settings of the amplifier. The instructions are further executable to transmit the one or more requested adjustments to a communication interface of the amplifier of the vehicle, the adjusted DSP settings being stored in the amplifier and retrievable by the computing device.
Method of controlling diaphragm excursion of electrodynamic loudspeakers
The present application relates in one aspect to a method of controlling diaphragm excursion of an electrodynamic loudspeaker. The method comprises dividing the audio input signal into at least a low-frequency band signal and a high-frequency band signal by a band-splitting network and applying the low-frequency band signal to a diaphragm excursion estimator. The instantaneous diaphragm excursion is determined based on the low-frequency band signal. The determined instantaneous diaphragm excursion is compared with an excursion limit criterion. The low-frequency band signal is limited based on a result of the comparison between the instantaneous diaphragm excursion and the excursion limit criterion to produce a limited low-frequency band signal which is combined with the high-frequency band signal to produce an excursion limited audio signal.
Multi-microphone neural network for sound recognition
A neural network is provided for recognition and enhancement of multi-channel sound signals received by multiple microphones, which need not be aligned in a linear array in a given environment. Directions and distances of sound sources may also be detected by the neural network without the need for a beamformer connected to the microphones. The neural network may be trained by knowledge gained from free-field array impulse responses obtained in an anechoic chamber, array impulse responses that model simulated environments of different reverberation times, and array impulse responses obtained in actual environments.
Adaptive directional audio enhancement and selection
A hands-free audio device has a receive path and a transmit path, which may operate at different audio sampling rates. The transmit path has an interference suppressor that receives a reference signal from the receive path and that suppresses interference in microphone signals received from a microphone array. The interference suppressor is followed in the transmit path by a multi-channel adaptive beamformer that produce a plurality of directional audio signals. A beam selector is configured to select one of the directional audio signals based on voice activity, echo detection, and signal energy.
Apparatus for redistributing acoustic energy
An apparatus for re-distributing acoustic energy. The apparatus comprises a first concave surface defined as a surface of revolution of a line or curve. This curve of revolution is rotated beyond 230 degrees and thus defines a rather small opening, which has advantages in the frequency response output. Additionally or alternatively, edges of the concave surface may be rounded to provide advantageous effects in the sound output.
Device and method for spatially selective audio reproduction
A more clear-cut separation of a first audio signal within a first region of a sonication area of a plurality of loudspeakers is achieved in that a calculator calculates that version of the audio signals which results from the spatially selective reproduction of the audio signals at this first region, in that a masking threshold is calculated as a function of the version of that audio signal which is to be separated from the one or more other audio signals at this region, and in that the emission of the audio signals for spatially selective reproduction to the outputs of the plurality of loudspeakers is influenced as a function of a comparison of the masking threshold with the version of the one or more other, i.e. spurious, audio signals.
Electrical speaker assembly
An electrical speaker assembly has a speaker element and two caps. The speaker element has two sides. The caps are attached respectively to the two sides of the speaker element, and each cap has a resonance space between the cap and a corresponding one of the sides of the speaker element, wherein one of the caps has a wire notch defined in the cap.
Audio surveillance system
A audio surveillance system includes a pair of headphones. An audio unit is coupled to the pair of headphones and the audio receives a first signal and a second signal. The audio unit records ambient sounds with respect to the headphones thereby facilitating the audio unit to receive the second signal. A control unit is selectively coupled to the headphones and the control unit may be manipulated. The control unit is in electrical communication with the audio unit when the control unit is coupled to the headphones. The control unit adjusts a volume of the second signal with respect to the first signal. Thus, the control unit facilitates a user to monitor the ambient sounds while the user listens to music.
Modular headset with pivotable boom and speaker module
A modular headset with a microphone boom module selectively engageable with a headband module. The microphone boom module has a speaker housing, a microphone boom, a microphone retained by the microphone boom, and a speaker retained by the speaker housing. An annular hub projects from the speaker housing, and an aperture is disposed in the headband module for receiving the hub in a pivotable engagement. Positive and negative electrical contact surfaces, such as conductive rings, are disposed over the hub, and electrical contacts project from the aperture to travel along the electrical contact surfaces. The microphone boom module has an active angular zone Za wherein the microphone boom module is active and a mute angular zone Zm. The mute angular zone Zm can include a range of angles encompassing alignment of a longitudinal orientation of the microphone boom module with a plane of the headband.
System and method for the protection and storage of small electronic components
A small case that can be injection-molded from liquid silicone rubber or a similar elastomer that protects earbuds or other components from damage and manages the wire to prevent tangling. The case has an integral pocket that holds most styles of earbuds or other items with several optional fingers that are flexible and compliant. The earbuds or other component can be inserted into the pocket and the fingers close over the earbuds or other items thereby protecting and/or retaining them. The wires can then be fed through one of the slots and wrapped around a spool. A reversible cover can then be flipped to a closed position to cover and retain the wire.
Waterproof bluetooth dual-earphone power bank
The utility model discloses a waterproof Bluetooth dual-earphone power bank, comprising a mobile power supply body and a Bluetooth dual-earphone component connected with the mobile power supply body, wherein the mobile power supply body and the Bluetooth dual-earphone component are both sealed structures. The power bank of the utility model is fastened up and down through two sealing rings such that an inner housing is sealed and bonded with an upper cover and that a rubber pad is sealed and bonded with a base, thus fulfilling the waterproofing purpose by extruding the sealing rings. The power bank of the utility model achieves a stable and reliable waterproof effect and ensures stable charging and service life of the product. The power bank of the utility model is wrapped with a metal housing outside, achieving anti-collision and anti-scratching effects; and the hand feel is strengthened through surface sanding and oxidation treatment.
Flexible transducer for soft-tissue and acoustic audio production
The present embodiments relate to techniques (300) and apparatuses (100, 500) for implementing a flexible transducer for soft-tissue audio production. These techniques (300) and apparatuses (100, 500) enable an audio-production device (102) having a flexible transducer (116, 402) conformed to a person's pinna to create audio within the person's external ear canal.
Canalphone sizing system and method
A canalphone system may include a canalphone housing, and a low frequency sound bore to carry a low frequency signal to the canalphone housing's outside. The system may also include a high frequency sound bore to carry a high frequency signal to the canalphone housing's outside, and the low frequency sound bore's length and/or the high frequency sound bore's length determined based upon being acoustically proper as well as a user's ear canal size.
Hearing damage limiting headphones
A device includes an input for receiving an audio signal, a speaker to convert the audio signal into an audible sound, and a memory for storing remediation instructions and detection instructions. The device further includes a processor coupled to the input, the speaker, and the memory. The processor is configured to process the audio signal according to the detection instructions and the remediation instructions to modulate amplitude of the audio signal based on the remediation instructions.
Speaker module and electronic device using the same
A speaker module is provided. The speaker module includes a housing, a speaker unit, and a modulating unit. The housing has a main segment and an extension segment connecting to the main segment and extending away from the main segment. The speaker unit is disposed in the housing in a position that is relative to the main segment. The modulating unit is relative to the extension segment and disposed in the housing. The shape of a cross section of the modulating unit is compatible with the shape of a cross section of the extension segment.
Topology-reconfigurable optical mobile fronthaul architecture with software-defined connectivity and hierarchical QoS
A method includes providing run-time optical 5G mobile fronthaul MFH topology re-configurability through software-defined control of both optical circuit switches and electrical packet switches readily accommodating unpredictable traffic patterns and low latency optical by-pass based device-to-device connectivity. The providing includes employing an optical any-to-any switch for wavelength-tunable and fixed-wavelength optical transceivers.
A telemetry system includes: a plurality of meters; a data reader configured to acquire meter reading information for each of the meters; a transmitter configured to receive the meter reading information for each of the meters acquired through the data reader and transmit a corresponding Bluetooth beacon signal; a receiver configured to receive transmission information from the transmitter; and a meter reading server configured to manage the meter reading information for each of the meters based on the transmission information received through the receiver.
Multi-camera dataset assembly and management with high precision timestamp requirements
A method and apparatus for synchronizing data captured by multiple image and non-image data capture devices using timing information. In one embodiment, the device comprises a plurality of interfaces operable to receive streaming data from each of a plurality of image and non-image capture devices and timestamping logic implemented, at least in part, in hardware and coupled to the plurality of interfaces to generate and assign timestamp information to each set of data captured by individual capture devices of the plurality of image and non-image capture devices to indicate when the data was captured, where the timestamp information is synchronized to a single timestamp reference clock. The device also comprises processing logic coupled to the timestamping logic to group image data from image capture devices with data from non-image capture devices using the timestamp information.
Systems and methods for developing objects and actions in media content
Embodiments provide an intuitive interactive media content development environment that simplifies the creation of actions, for example, allowing users to easily specify that a shape will move when the media is run or that a web page will be opened when a button is clicked within the media. The assignment of an action may involve one or more displayed objects, including as examples, trigger objects associated with an event that triggers the action and target objects that move or otherwise perform the specified action(s). Embodiments provide a visual and intuitive interface that minimizes the experience required of a user and, in some cases, provides a primarily mouse-click driven development environment for both objects and actions, including for specifying interactions between objects.
Targeted television advertisements based on online behavior
In a method for delivering targeted television advertisements based on online behavior, IP addresses indicating online access devices and IP addresses indicating television set-top boxes are electronically associated for a multitude of users. Using user profile information derived from online activity from one of the online access IP addresses, a television advertisement is selected, such as by using behavioral targeting or demographic information, and automatically directed to the set-top box indicated by the set-top IP address associated with that online access IP address. Preferably neither the user profile information nor the electronic association of online access and set-top box IP addresses includes personally identifiable information.
On demand mobile wireless broadcast video delivery mechanism
A mobile broadcast service center and a mobile wireless network to deliver broadcast video to mobile wireless devices is described. When the mobile broadcast service center receives a request to deliver a broadcast video channel to a target mobile wireless device, it designates as target an intermediate node in the network that serves the target mobile wireless device. The mobile broadcast service center first determines if an existing channel bundle is routed to the target intermediate node. If this first determination is negative, the mobile broadcast service center routes a new channel bundle to the target intermediate node, including the requested broadcast video channel. If the first determination is positive, the mobile broadcast service center then determines if the requested broadcast video channel is in the existing channel bundle. If this second determination is negative, then it adds the requested broadcast video channel to the existing channel bundle.
System and method for multiple rights based video
There is provided a system and method for multiple rights based video. Source video assets may be analyzed to identify segments associated with a restricted scope of rights, and replacement assets associated with rights of different restrictions may be provided. When a request is received to serve a particular source video asset, a correspondingly customized video asset may be constructed by analyzing the rights available to the target of the request and the associated rights of the available replacement assets. Multiple parameters may be utilized in such analysis, and may include criteria such as territorial region, audience age, paid subscription level, and intended distribution channel. Since video can be optimized for different targets largely automatically, wider distribution of content may be possible under stricter budget and schedule constraints. Potential benefits may include increased revenue streams, market penetration, and brand recognition.
Set-top box device capable of providing electrical power to an antenna
A set-top box device capable of providing electrical power to an antenna includes an insulation housing, a printed circuit board, a metal portion, and a conductive locking member. The insulation housing has at least one lateral arranged thereon a through hole portion. The printed circuit board is arranged in the insulation housing and includes a power supply module. The metal portion is arranged on the printed circuit board and includes a locking hole corresponding the through hole portion. The conductive locking member passes through the locking hole, the through hole portion, a conductive end portion of the power supply line, and the metal portion. The power supply module feeds a current into the antenna through a connection of the metal portion, the conductive locking member, and the conductive end portion, and the current flows to a ground portion of the signal line thereby forming a power supply loop.
Application for in-field discovery, diagnosis and repair of a set-top device
A method for performing in-field discovery, diagnosis and/or repair of a set-top device includes the steps of: determining whether at least a first set-top device is non-responsive to a head-end via a communication channel established between the head-end and the first set-top device; executing a search and rescue (SAR) module on the first set-top device when it is determined that the first set-top device is non-responsive to the head-end; and re-establishing communications between the first set-top device and the head-end by the SAR module executing on the first set-top device.
System and method for conditional access in an in-home network based on multi-network communication
One or more circuits for use in a transceiver that is collocated with a satellite dish, may receive a satellite signal carrying media content, and remove content protection from the received media content. After removing the first content protection, the one or more circuits may apply second content protection to the media content. The content protection applied by the one or more circuits may adhere to a different protocol, utilize different keys, and/or otherwise be distinguishable from the content protection that was removed. After applying the content protection, the one or more circuits may transmit the media content onto one or more links between the satellite dish and one or more client devices. The removal of the content protection may comprise descrambling and/or decrypting the media content. The application of the content protection may comprise scrambling and/or encrypting the media content.
Smart phone as remote control device
A communication device such as a smart phone is enabled for remotely controlling set-top boxes (STBs) over Internet protocol networks using an applet running on the communication device. Authentication from within a multimedia content distribution network may be achieved by verifying that a network identifier associated with the communication device is associated with an account that has granted access to the smart phone and that is associated with the controlled STB. A viewing pane on the communication device permits a user to remotely view content received on or available to the controlled STB.
Display apparatus and controlling methods thereof
A method of controlling a display apparatus is provided. The display apparatus displays a screen comprising a plurality of content areas which indicate different content, in response to a predefined control signal being received, displays a UI screen for selecting a content area to be controlled based on an attribute of the received predefined control signal, among the plurality of content areas, and in response to at least one content area being selected, controls a display operation of the selected at least one content area according to the control signal.
System and a method adapted to display EPG media content from the world wide web
The invention relates to a system, a method of a remote control adapted to display media content from the World Wide Web. This is accomplished by utilizing a smart-phone as a remote control by an application program, and transmitting the media content through a backend system utilizing WI-FI adapters to transmit streaming media to for instance a HDMI TV. Moreover, the invention provides viewing already aired programs through an electronic program guide (EPG).
Media source identification
A server machine and a first device (e.g., a television) are configured to access a stream of media (e.g., a broadcast channel) from a media source (e.g., a broadcaster). The server machine generates a representation (e.g., a fingerprint) of the stream of media and stores the representation. The first device plays the stream of media (e.g., for a user) and generates an analog signal based on the stream of media. A second device (e.g., a mobile device of the user) is configured to receive the analog signal and generate a representation of the analog signal. The second device provides the representation of the analog signal to the server machine, which may compare the representation of the stream of media to the representation of the analog signal. Based on the comparison, the server machine may provide an identifier of the media source to the second device.
Coordination of video and/or audio recording
Approaches described herein provide coordination of audio and/or video recording to minimize any gaps in coverage. In one approach, users of a distributed set of recording devices are invited to join a community with other similar users via a networked application in a loosely collaborative way. The recording coordination application substantially continuously monitors the state of the recording activities and coordinates the community of users to reduce any gaps in coverage.
System and method for monitoring whole home digital video recorder usage for internet protocol television
The subject disclosure describes identifying a table associated with a set-top box that receives services from equipment of a video head-end office, where the table indicates that the set-top box has requested a video stream that would exceed a first number of video streams allocated to the set-top box and would exceed a bandwidth configuration, detecting a conflicting event according to information in the table, reconfiguring the bandwidth configuration allocated to the plurality of set-top boxes to resolve the conflicting event, determining a second number of video streams requested by the plurality of set-top boxes when the conflicting event occurred, determining a third number of video streams to resolve the conflicting event based on a difference between the first number of video streams and the second number of video streams, and instructing the equipment to provide the third number of video streams to the set-top box. Other embodiments are disclosed.
Method and apparatus for hierarchical distribution of video content for an interactive information distribution system
A method and apparatus for storing and distributing video information in an interactive information distribution system by storing video information on either a centralized or de-centralized secondary storage partition in a network of provider and subscriber equipment, and therein distributing the video information to a subscriber having made a request for such video information.
Method, device and system for evaluating user experience value of video quality
Embodiments of the present disclosure provide a method, a device and a system for evaluating a user experience value of video quality. The method is: acquiring an uplink packet of a user equipment for requesting to watch an OTT video, where the uplink packet is transmitted by the user equipment to a video server storing the OTT video and carries request information of the user equipment on the OTT video; acquiring a downlink packet corresponding to the uplink packet, where the downlink packet is transmitted by the video server to the user equipment and carries the OTT video, and the OTT video is transmitted by the video server according to the request information in the uplink packet; buffering the downlink packet; and in response to determining that the buffered downlink packet satisfies a resolving condition, resolving the OTT video in the buffered downlink packet to generate a user experience value.
Method and apparatus of adaptive loop filtering
A method and apparatus for processing in-loop reconstructed video using an in-loop filter is disclosed. In the recent HEVC development, adaptive loop filtering (ALF) is being adopted to process in-loop reconstruction video data, where ALF can be selectively turned ON or OFF for each block in a frame or a slice. An advanced ALF is disclosed later that allows a choice of multiple filter sets that can be applied to the reconstructed video data adaptively. In the present disclosure, pixels of the in-loop reconstructed video data are divided into a plurality of to-be-filtered regions, and an in-loop filter from a filter set is determined for each to-be-filtered region based on a rate-distortion optimization procedure. According to one embodiment of the present invention, computation of cost function associated with the rate-distortion optimization procedure is related to correlation values associated with original video data and the in-loop reconstructed video data. Furthermore, the correlation values can be shared by the multiple candidate filters during the rate-distortion optimization procedure for said each to-be-filtered region. In another embodiment, the correlation values can be shared by multiple candidate to-be-filtered regions of an area of the in-loop reconstructed video data during the rate-distortion optimization procedure for the area of the in-loop reconstructed video data.
Transposing a block of transform coefficients, based upon an intra-prediction mode
Methods and devices for video coding are described. If an intra-prediction mode to be used in encoding a block of residual data is in a specific predetermined class, e.g., the horizontal class, then at least a portion of a quantized transformed block of residual data is transposed during encoding. Likewise, if an intra-prediction mode that was used to generate an encoded block of residual data is in such a class, then at least a portion of an entropy-decoded block of residual data is transposed during decoding.
Method for encoding a current block of a first image component relative to a reference block of at least one second image component, encoding device and corresponding computer program
A method for coding a current block of a first image component with respect to a reference block of at least one second image component. The first and second image components are representative of the same scene, and the reference block being previously subjected to coding by partitioning, and then to decoding. Partitioning of the reference block is performed a plurality of times until a determined level of depth of partitioning is obtained. The coding method includes, as a function of the type of the first and second image components: partitioning the current block a plurality of times until a level of depth of partitioning dependent on the level of partitioning of the reference block is obtained; or partitioning the current block on the basis of a level of depth of partitioning previously initialized by a level of partitioning depending on the level of partitioning for the reference block.
System and method for encoding video content using virtual intra-frames
Systems and methods are provided for encoding raw image content encoded using one or more virtual intra-frames. In an exemplary method, a stream of video content may be encoded to generate compressed video data that includes an intra-frame and a plurality of corresponding inter-frames. The compressed video data may be stored within a buffer, and when the amount of data in the buffer exceeds a threshold value, a virtual intra-frame may be computed based on decoded inter-frame data. The virtual intra-frame may be output for storage in the buffer.
Method and apparatus for image encoding and decoding using intra prediction
Provided are a method and apparatus for intra predicting an image, which generate a prediction value via linear interpolation in horizontal and vertical directions of a current prediction unit. The method includes: generating first and second virtual pixels by using at least one adjacent pixel located upper right and lower left to a current prediction unit; obtaining a first prediction value of a current pixel via linear interpolation using an adjacent left pixel located on the same line as the first virtual pixel and the current pixel; obtaining a second prediction value of the current pixel via linear interpolation using an adjacent upper pixel located on the same column as the second virtual pixel and the current pixel; and obtaining a prediction value of the current pixel by using the first and second prediction values.
Signaling HRD parameters for bitstream partitions
In one example, a device for coding (e.g., encoding or decoding) video data includes a memory configured to store video data, and a video coder configured to code hypothetical reference decoder (HRD) parameters for each sub-layer of each bitstream partition of a video bitstream; and process the video bitstream using the HRD parameters. The video coder may code the HRD parameters in the form of a loop over the HRD parameters that is iterated for each of the sub-layers, and/or indexes to respective sets of HRD parameters for each of the sub-layers.
Arithmetic decoding device, arithmetic decoding method, arithmetic coding device, arithmetic coding method, and storage medium
A coefficient presence/absence flag decoding unit, included in a quantized residual information decoding unit which reduces a processing amount related to coding and decoding of a transform coefficient, splits a target frequency domain or a target pixel domain into sub-blocks, and derives different context indexes with respect to each transform coefficient in a pixel domain, obtained through a transform skip or a transform/quantization bypass, and each transform coefficient which is obtained for each frequency component through frequency transform.
Apparatus of decoding video data
An apparatus for generating a residual block according to an embodiment includes an entropy decoding unit configured to decode residual signals to generate quantized coefficient components; an inverse scanning unit configured to determine an inverse scan pattern and generate a quantized block using the inverse scan pattern; an inverse quantization unit configured to derive a quantization parameter and inversely quantize the quantized block using the quantization parameter to generate a transformed block; and an inverse transform unit configured to inversely transform the transformed block to generate a residual block.
Hybrid transform-based compression
A system implements a hybrid coding mode. The hybrid coding mode may implement a transform to decompose an input stream into frequency components. The frequency components may include frequency bands such as those resulting from a wavelet transform. The frequency components may have associated coefficients which may be determined via the transform. The hybrid coding mode may also implement a predictor-based coding mode. A predictor-based coding mode uses a set of values as predictors for another set of values. The hybrid mode may be implemented by using predictor-based coding to code a portion of the coefficients. For example, a coefficient may be used as a predictor for another coefficient of same frequency component. In some implementations, dynamic selection between a hybrid coding mode and a point coding mode may be used.
Video content analysis and/or processing using encoding logs
A system to facilitate analyzing and/or processing video content using encoding logs is provided. The system includes a first analysis component, a second analysis component and a transcoding component. The first analysis component determines a first set of shot-change locations associated with a cut transition in a video sequence based on an encoding log associated with at least one previously encoded video frame. The second analysis component determines a second set of shot-change locations associated with a fading transition in the video sequence based on the encoding log associated with the at least one previously encoded video frame. The transcoding component processes the video sequence based on at least a portion of the first set of shot-change locations and the second set of shot-change locations.
Parameter set coding
Systems, methods, and devices for processing video data are disclosed. Some examples relate to receiving or forming a parameter set having an identifier that is fixed length coded, wherein a parameter set identification (ID) for the parameter set is before any syntax element in the parameter set that is entropy coded and using the parameter set having the identifier that is fixed length coded to decode or encode video data. Other examples determine whether a first parameter set ID of a first parameter set of a first bitstream is the same as a second parameter set ID of a second parameter set of a second bitstream. In response to determining that the second parameter set ID is the same as the first parameter set ID, changing the second parameter set ID to a unique parameter set ID. A parameter set associated with the unique parameter set ID may be transmitted.
Method and an apparatus for processing a video signal
The present invention is directed to a method and apparatus for decoding a bitstream for a video signal. More specifically, the present invention is directed to a method comprising determining a motion vector candidate set of a current block; obtaining motion vector indication information of the current block from the bitstream; determining a motion vector indicated by the obtained motion vector indication information from the motion vector candidate set of the current block as a predicted motion vector of the current block; and performing motion compensation on the current block based on the predicted motion vector, and an apparatus therefor.
Devices and methods for context reduction in last significant coefficient position coding
In one embodiment, a method of video encoding, the method comprising: encoding a position of a last non-zero coefficient within a video block, wherein the position of the last non-zero coefficient is provided in a significance map according to block width; and assigning at least one context model to the significance map; wherein the at least one context model includes at least three first contexts, and wherein each of the first three contexts is configured to be shared across two or more blocks of different widths.
Head mount display and display control method
To appropriately prevent a burn-in phenomenon when a still image such as an OSD screen is displayed on a display panel. When a menu screen is displayed on a video screen in a superimposed manner, a menu phrase in at least one of a left-eye video and a right-eye video is deleted on a menu background area. A time period in which a brightness difference between still pixels in a boundary between a menu background area and a menu phrase remains large is reduced, and thus the occurrence of the burn-in phenomenon can be prevented. However, the menu background area is constantly displayed without being deleted, so that screen flickering does not occur.
Stereoscopic image display device
A stereoscopic image display device including a rear barrier and a parallax unit and thus having highly improved brightness is disclosed. The stereoscopic image display device includes a rear barrier disposed on a bottom surface of a display panel, a parallax unit disposed on a top surface of the display panel, and a light collecting unit disposed between the rear barrier and a backlight unit. Here, the light collecting unit collects light incident from the backlight unit in an open region of the rear barrier to improve brightness of the stereoscopic image display device.
Display device with free focus capability
A display device (40) comprising: a display panel (41) comprising a set of pixels (41R, 41L) the pixels being spatially distributed over the display panel, and each pixel being for providing a light output, the set of pixels comprising a plurality of different subsets (411) of pixels, each subset of pixels comprising one or more pixels of the set of pixels, an imaging unit (42) arranged for imaging the one or more pixels of a subset of pixels to form pixel images on a plurality of view areas on an imaginary plane located at a first distance in front of the display, the plurality of view areas not overlapping each other, with at least one pixel image of each one of the different subsets of pixels overlapping on a same one of the plurality of view areas, the imaginary plane comprising an imaginary circle having the diameter of the pupil of an eye, and the imaginary circle enclosing at least a part of at least two of the plurality of view areas, where the at least two of the plurality of view areas at least partly enclosed within the imaginary circle differ from each other with respect to at least one of the pixel images therein. The display system may be for one eye only or for two eyes of a viewer or for more eyes of more viewers.
Method for accelerated restitution of audio content and associated device
The present invention relates to an audio content restitution method in a receiver of audio and/or audiovisual content, the receiver being adapted to the restitution of the audio content, the audio content being received encoded and containing a succession of frames of audio samples and pointer type information on at least one portion of the audio samples of the frames.According to a particular embodiment, the audio content restitution method comprises: a selection of audio samples from the frames, the selected audio samples being identified from the pointer type information; a restitution of the only samples selected.
Underwater image projection system and method
Some embodiments include an underwater projection system having a water feature that includes a first underwater light niche. A user interface is configured to upload an image from a user to a controller. A projector is disposed in the first underwater light niche and is configured to project the image onto an underwater surface of the water feature. The controller is in communication with the user interface and the projector and the controller operates the projector.
Dive computer incorporating stored dive site information
Dive computers in accordance with embodiments of the invention are disclosed that store information concerning a dive site. The stored information can be accessed during the dive to provide information concerning such things as points of interest and/or hazards. One embodiment of the invention includes a processor, memory connected to the processor, a pressure transducer connected to the processor and configured to measure depth, and a display connected to the processor. In addition, the memory contains factual information concerning a dive site, and the processor is configured to display at least a portion of the stored factual information concerning the dive site via the display.
Holographic video capture and telepresence system
The invention is directed to recording, transmitting, and displaying a three-dimensional image of a face of a user in a video stream. Reflected light from a curved or geometrically shaped screen is employed to provide multiple perspective views of the user's face that are transformed into the image, which is communicated to remotely located other users. A head mounted projection display system is employed to capture the reflective light. The system includes a frame, that when worn by a user, wraps around and grips the user's head. Also, at least two separate image capture modules are included on the frame and generally positioned relatively adjacent to the left and right eyes of a user when the system is worn. Each module includes one or more sensor components, such as cameras, that are arranged to detect at least reflected non-visible light from a screen positioned in front of the user.
Online conference system with real-time document transaction platform
A computer-implemented online conferencing transactional platform system comprising an interaction module, a video-conferencing module, and a storage device may allow multiple participants in a video-conference to access, co-browse, collaboratively edit, and sign a transactional document. An interaction module fetches an image of a transactional document and a field identifier for an interactive transactional document element to be filled out from a remotely-connected secure signature API, and displays the image of the document, along with the interactive transactional document element on a webpage interface to a moderator and a signer end user in a video-conference. The interaction module receives a filled-out transactional document in an I-frame from the secure signature API, allowing the signer end user to sign the transactional document using a secure embedded signature process.
Video transmission and reconstruction
Systems and methods for reducing the bandwidth required to transmit video streams related to faces re described herein. In some aspects, contour information from face recognition technology is captured at a transmitting device and sent to a receiving device. The contour information may be used to reconstruct the face at the receiving device without the need to send an entire video frame of the face.
Transfer to target disambiguation
An aspect provides a method, including: ascertaining, at a first device, a request to transfer media data to another device; determining, at the first device, a plurality of connected devices for potential transfer of media data corresponding to the request; providing, at the first device, a disambiguation cue to a user; ascertaining via the disambiguation cue a target device from the plurality of connected devices for transfer of the media data; and transferring the media data to the target device. Other aspects are described and claimed.
Method and system for controlling a display system
A control system and a method that controls a display system are provided. The control system receives sensing signals from one or more sensors and controls the display of items based on the sensing signals received. In an embodiment, the control system controls at least a display panel that plays multimedia content. In an embodiment, the control system controls the movement of items on display in accordance with the multimedia played on the display panel. In an embodiment, the control system controls lighting effects within a display area containing the item on display during the display. In an embodiment, the control system controls audio media that is played during the display.
Solid state imaging device, method of controlling solid state imaging device, and program for controlling solid state imaging device
A solid state imaging device includes: a pixel array unit that has a plurality of pixels 2-dimensionally arranged in a matrix and a plurality of signal lines arranged along a column direction; A/D conversion units that are provided corresponding to the respective signal lines and convert an analog signal output from a pixel through the signal line into a digital signal; and a switching unit that switches or converts the analog signal output through each signal line into a digital signal using any of an A/D conversion unit provided corresponding to the signal line through which the analog signal is transmitted, and an A/D conversion unit provided corresponding to a signal line other than the signal line through which the analog signal is transmitted.
Thermal recognition systems and methods
Various techniques are disclosed for providing object recognition using thermal imaging. Unique thermal features of an object such as a human face can be detected using a thermal imaging module. The thermal imaging module may be included in an authentication system that performs authentication operations for users of a secure system based on the detected thermal features. The thermal features may include a thermal map of a user's face. An object recognition system such as an authentication system may include a non-thermal imaging module that captures non-thermal images of the object. The object recognition system may recognize objects using thermal images and non-thermal images in separate object recognition operations or by combining the thermal and non-thermal images and performing object recognition operations using the combined image. A thermal imaging authentication system may help eliminate user passwords on phones, tablets, computers and/or other secure access systems.
Dynamic activity-based image generation
A system according to various exemplary embodiments includes a processor and an activity sensor, communication module, digital camera and memory coupled to the processor. The memory stores instructions that, when executed by the processor, causes the system to: generate an image via the digital camera; retrieve activity data associated with a user of the system from the activity sensor; modify the image to represent the activity data within the image; and transmit the modified image, using the communication module, to a server.
Image processing device and control method for the same for applying a predetermined effect to a moving image
It is determined whether an angle of view is changed or an image with an aspect ratio different from the aspect ratio of the moving image is inserted in a moving image recorded in a temporally continuous manner (system control unit), and when it is determined that an angle of view or an aspect ratio is changed, a predetermined effect is applied to the moving image (image processing unit).
Image sensor configuration
An image sensor has an array of light-sensitive pixels. Each pixel of the array includes a photodiode and a plurality of capacitors configured to store charge from the photodiode. The image sensor has an address decoder, coupled to the array of light-sensitive pixels. In at least one mode of operation, portions of the array of light-sensitive pixels to capture respective image exposures. The portions may include interlaced rows of pixels of the array of light-sensitive pixels, blocks of rows of pixels of the array of light-sensitive pixels, interlaced columns of pixels of the array of light-sensitive pixels, interlaced columns and rows of pixels of the array of light-sensitive pixels, blocks of columns and rows of pixels of the array of light-sensitive pixels, etc.
Picture brightness adjusted motion detection
An apparatus includes an input circuit configured to receive a sequence of pictures and a processing circuit. The processing circuit may be configured to (i) determine respective picture brightness values for each of a reference picture and a target picture selected from the sequence of pictures, (ii) remap image data of at least one of the reference picture and the target picture based upon the respective picture brightness values, and (iii) perform motion detection between the reference picture and the target picture utilizing the remapped image data.
Image photographing apparatus, image photographing system for performing photographing by using multiple image photographing apparatuses, and image photographing methods thereof
An image photographing apparatus, an image photographing method thereof, and an image photographing system using a plurality of image photographing apparatuses, and an image photographing method thereof are provided. The image photographing apparatus includes: a camera configured to capture a first image of a subject by using a lens having a first focal distance; a combiner configured to combine the image photographing apparatus with another image photographing apparatus including a lens having a second focal distance different from the first focal distance; a controller configured to, in response to a photographing command being input, control the camera and the another image photographing apparatus to respectively perform photographing; an image processor configured to generate a captured image by using the first image captured by the camera and a second image captured by the another image photographing apparatus; and a display configured to display the captured image.
A digital camera includes a rotary switch, a switching unit, and a switching unit. The switching unit switches between two states independently of a function other than functions assigned to the respective states of the rotary switch, the two states including a restricted state where rotation of the rotary switch is restricted with a clicking feel and a function of at least one of a shutter speed and an aperture as a function with discrete output values is related to the rotating operation of the rotary switch and a non-restricted state where rotation of the rotary switch is not restricted and a function of at least one of focusing, and a zoom magnification of a lens, and similar function as a function with continuous output values is related to the rotating operation of the rotary switch.
Image pickup apparatus including infrared light reduction section, method of controlling the same, and storage medium
An image pickup apparatus capable of accurately inserting/removing an infrared light reduction section. An infrared cut filter is inserted between a photographic optical system and an image pickup device to reduce infrared light contained in an optical image. If an object luminance acquired based on an optical image is lower than a first threshold, a camera control circuit calculates a second threshold for comparison with the object luminance and a third threshold value for comparison with an object luminance detected by a luminance sensor, based on the object luminances and the first threshold, and one of the second and third thresholds is made equal to or higher than the other. The infrared cut filter is selectively inserted or removed based on the object luminances, the second and third switching threshold values.
Wide field of view camera for integration with a mobile device
Disclosed herein are various embodiments of an imaging device having a wide field of view configured to connect to another device. According to one embodiment, the wide field of view camera can include an array of cameras for recording a wide view (e.g., 360° view) of the surrounding environment and generate a 360° image of the surrounding environment. The wide field of view camera can be configured to connect and/or attach to another device, including a mobile device. Embodiments include a wired or wireless connection mechanism to facilitate communication between the wide field of view camera and another device. The connection mechanism may enable transmission of data associated with the wide field of view camera to another device. Embodiments include an attachment mechanism to fasten the wide field of view camera to another device.
Omnistereo capture for mobile devices
Systems and methods for capturing omnistereo content for a mobile device may include receiving an indication to capture a plurality of images of a scene, capturing the plurality of images using a camera associated with a mobile device and displaying on a screen of the mobile device and during capture, a representation of the plurality of images and presenting a composite image that includes a target capture path and an indicator that provides alignment information corresponding to a source capture path associated with the mobile device during capture of the plurality of images. The system may detect that a portion of the source capture path does not match a target capture path. The system can provide an updated indicator in the screen that may include a prompt to a user of the mobile device to adjust the mobile device to align the source capture path with the target capture path.
Image processing apparatus, image processing method, program, and camera
Provided are an image processing apparatus, an image processing method, a program, and a camera which are cable of generating a joined image in which distortions and seams are less likely to occur. An image processing apparatus according to an exemplary embodiment generates a joined image by joining a plurality of textures based on a plurality of images, and includes a second derivation unit that derives a motion between images of the plurality of images, and a texture writing unit that writes, into a frame memory, the plurality of textures that form the joined image, based on the motion between the images. The plurality of textures include a texture having such a shape that at least a part of an outline thereof is curved.
Feature based high resolution motion estimation from low resolution images captured using an array source
Systems and methods in accordance with embodiments of the invention enable feature based high resolution motion estimation from low resolution images captured using an array camera. One embodiment includes performing feature detection with respect to a sequence of low resolution images to identify initial locations for a plurality of detected features in the sequence of low resolution images, where the at least one sequence of low resolution images is part of a set of sequences of low resolution images captured from different perspectives. The method also includes synthesizing high resolution image portions, where the synthesized high resolution image portions contain the identified plurality of detected features from the sequence of low resolution images. The method further including performing feature detection within the high resolution image portions to identify high precision locations for the detected features, and estimating camera motion using the high precision locations for said plurality of detected features.
Method and apparatus for capturing image in portable terminal
The present disclosure relates to a method and an apparatus for capturing an image in a portable terminal. Upon receiving an image for preview and an image for capture simultaneously by a camera module, the controller simultaneously outputs the image for the preview and the image for the capture to a main controller during a simultaneous output mode. The received image for the preview is displayed and stored for a predetermined time period for a subsequent retrieval, so that when a capture key is pressed to capture a target object, the stored image corresponding to a time point at which the capture key is activated is retrieved and stored.
Enhanced image capture
Disclosed are techniques that provide a “best” picture taken within a few seconds of the moment when a capture command is received (e.g., when the “shutter” button is pressed). In some situations, several still images are automatically (that is, without the user's input) captured. These images are compared to find a “best” image that is presented to the photographer for consideration. Video is also captured automatically and analyzed to see if there is an action scene or other motion content around the time of the capture command. If the analysis reveals anything interesting, then the video clip is presented to the photographer. The video clip may be cropped to match the still-capture scene and to remove transitory parts. Higher-precision horizon detection may be provided based on motion analysis and on pixel-data analysis.
Method and apparatus for image capture targeting
In accordance with an example embodiment of the present invention, a method and corresponding apparatus and computer program are disclosed for: receiving images from an image sensor of a camera unit (505); monitoring locations of different objects in the received images (510); determining which if any of the different objects is a primary object that is or should be of interest to a user (515); and detecting if any primary object becomes occluded by another one of the different objects and responsively to detection of such occlusion triggering a first action (520).
Lens unit, imaging device, and control method
There is provided a lens unit equipped with multiple focus lenses provided inside a lens barrel, multiple actuators corresponding to the respective multiple focus lenses and configured to move each of the multiple focus lenses inside the lens barrel, and a control circuit configured to control movement of the multiple focus lenses according to different rules between a case of a position of each of the multiple focus lenses being inside a designated range of satisfactory optical performance, and a case of being outside the range.
Multi-camera view selection based on calculated metric
Techniques for automatically selecting from amongst multiple camera views available in a multi-camera system. In an aspect, one or more metrics are calculated for multiple camera views. The metrics may be used to identify one or more of the camera views as fulfilling a condition, in response to which a particular one of the camera views may be selected for display. For example, in a “select-better-view” strategy, the camera view associated with a more optimal image (e.g., better lighting, or absence of occlusion) is selected for display. In a “flag-diagnostic-view” strategy, the camera view associated with a less optimal image is displayed, e.g., to indicate that a particular camera may require user attention. Specific techniques for calculating metrics are further disclosed.
Gaze tracker and method for tracking gaze thereof
The present disclosure provides a gaze tracker and a gaze tracking method. The gaze tracker includes: an image acquirer to acquire eye images of a user using two or more cameras and two or more lightings; and a gaze calculator which detects a lighting reflection point from each eye image to extract a cornea central point, detects a pupil central point from each eye image, and calculates a gaze vector. In particular, when lighting reflection points are detected from each eye image, the gaze calculator calculates vectors for connection between each lighting and a corresponding lighting reflection point and detects an intersection point between the calculated vectors. When only one lighting reflection point is detected, the gaze calculator extracts the cornea central point using distance information between a pre-stored lighting reflection point and the cornea central point and the one lighting reflection point.
Camera module including multilayer base body, image sensor IC, lens unit, peripheral circuit components, and connector element and electronic device including same
A camera module includes a multilayer base body including a first mounting portion, a second mounting portion, and a connecting portion. The first mounting portion and the second mounting portion are connected to the connecting portion. A connector element is arranged in the second mounting portion. The first mounting portion includes a cavity, and a penetration hole penetrating from the cavity to one surface of the first mounting portion. An image sensor IC is arranged in the cavity, and the lens unit is arranged on the one surface of the first mounting portion at a location at or near the penetration hole. Peripheral circuit components and conductor patterns are mounted to or incorporated in the first mounting portion.
Image forming apparatus, storage medium, and color conversion method
An image forming apparatus prints an image using a color conversion table. The image forming apparatus includes a representative color acquisition section and a color adjustment section. The representative color acquisition section acquires at least one representative color of the image. The color adjustment section adjusts a reproduced color, of a color included in the image, obtained with reference to the color conversion table. The color adjustment section adjusts the reproduced color, of the color included in the image, obtained with reference to the color conversion table, based on positional relationship in a color space between a reproduced color of the representative color obtained by a display device and a reproduced color of the representative color obtained with reference to the color conversion table.
Systems and methods for managing printing using multiple colorant levels
A method of determining multi-level printing parameters for a printing device includes identifying printing parameters for each of multiple colorant levels; providing at least one density measurement at a known coverage for each colorant level; providing an aim curve relating input tone value to printed density value; and identifying multiple test parameter sets. The method further includes, for each of the test parameter sets at each of multiple input tone values, determining a printed density value based on the parameters of the test parameter set and the density measurements, and determining an error value from differences between the determined printed density values and the aim curve. The method also includes selecting one of the test parameter sets using the determined error values; and communicating the selected one of the plurality of test parameter sets for receipt by the printing device for printing documents. Systems and software can employ the method.
Image processing apparatus authentication system and image processing apparatus
An image processing apparatus serving as a master device and a plurality of local image processing apparatus serving as local devices are connected to one another via a network, and each of the devices includes an authentication information storage unit and an authentication unit. The master device stores, as master authentication information, authentication information necessary for an authentication on each of users who are able to use each of the devices, for each of the devices, and allows editing of the master authentication information. When the authentication information on the local device in the master authentication information is edited, the edited authentication information is transmitted to the local device, and the authentication information stored in local device is updated. When a user login operation is performed on the local device, an authentication is performed by using the authentication information in the local device.
Image processing apparatus to print image data received by facsimile communication
An image processing apparatus includes a reception unit, a conversion unit, and a storage unit. The reception unit receives image data by facsimile communication. The conversion unit converts the image data received by the reception unit into image data having a print paper size of a fixed size. The storage unit stores, in a file, the image data converted by the conversion unit.
Image processing apparatus capable of performing image processing immediately after starting to be supplied with an external voltage
An image processing apparatus includes a switch section, a power supply section, an operation display section, an initialization control section, an image processing section, and a condition receiving section. The initialization control section causes the operation display section to start a first initialization processing when supply of a power supply voltage is started, and subsequently causes the image processing section to start a second initialization processing. The condition receiving section accepts an input of an execution condition. The operation display section includes a display part, a storage part, a display control part, and a condition setting part. The display control part causes the display part to display a screen after completion of the first initialization processing. The condition setting part stores an execution condition inputted via the screen in the storage part, and outputs the execution condition to the condition receiving section after completion of the second initialization processing.
Facsimile apparatus, method of controlling facsimile apparatus, and storage medium
A facsimile apparatus includes a first detection unit, a second detection unit, a third detection unit, and a determination unit. The first detection unit detects a line voltage in an on-hook state. The second detection unit detects a line voltage in an off-hook state. The third detection unit detects a line current in an off-hook state. The determination unit determines a line impedance based on the line voltage detected by the first detection unit, the line voltage detected by the second detection unit, and the line current detected by the third detection unit.
Improving workflow processing efficiency of information processing system, information processing method, and device via workload distribution
An information processing system including a device connected to an information processing apparatus is provided. The device includes an accepting unit that accepts a request for executing a set of process units defined by definition information with respect to data generated by the device, a first process control unit that controls execution of a part of the process units based on the definition information, and a transmitting unit that transmits to the information processing apparatus an execution result of the process unit controlled by the first process control unit and information indicating the process unit executed at the device. The information processing apparatus includes a receiving unit that receives the execution result and the information indicating the process unit executed at the device, and a second process control unit that controls execution of a process unit that has not been executed at the device based on the definition information.
Communication apparatus, control method, and program
A communication apparatus includes a connection unit, a storage unit, first and second processing units, and a control unit. The storage unit operates in one of a first state where a memory keeping process to keep information stored in the storage unit is executed in response to accepting an outside instruction, and a second state in which the memory keeping process is executed without accepting an outside instruction. The first processing unit performs a first process based on network received information and the stored information. The second processing unit performs a second process different from the first process and based on the stored information. The control unit forces the storage unit to transit from the first to the second state where the first and second processing units are not accessing the storage unit. Consumption power consumed in the first state is larger than consumption power consumed in the second state.
Mobile device and method for controlling the same
A portable device and a method for controlling the same are disclosed, which senses an image including a pattern code. The mobile device includes a camera unit configured to sense an image; a display unit configured to display the image; a sensor unit configured to detect an input signal and transmit the detected input signal to a processor; and the processor configured to control the display unit, the camera unit and the sensor unit, wherein the processor further configured to: provide an image capturing interface, wherein the image capturing interface displays the image sensed by the camera unit and an image capturing trigger for storing the image, simultaneously display a pattern code trigger for storing information of a pattern code in the image capturing interface only when the pattern code is recognized from the image.
Information processing device, information processing method, and program for generating a layout
There is provided an information processing device including an evaluation value calculation unit configured to calculate an evaluation value of each of candidate images which are candidates for an image to be selected based on information regarding an image corresponding to each of the candidate images, a page allocation unit configured to determine the number of pages based on a parameter regarding a layout and determine the number of images disposed in each page based on the parameter regarding the layout and the calculated evaluation value, an image selection unit configured to select the image among the candidate images based on the parameter regarding the layout and the calculated evaluation value, and a layout generation unit configured to generate the layout in which the selected image is disposed for each page based on the parameter regarding the layout and the evaluation value corresponding to the selected image.
Image forming apparatus
Plural sensors are arranged respectively for plural toner colors, and oscillate to generate and output detection signals with frequencies corresponding to toner densities using oscillator circuits. An analog switch selects one detection signal among the detection signals. A filter decreases amplitude of the selected detection signal. A first signal line transmits the detection signal with the decreased amplitude. A comparator compares the transmitted detection signal with a predetermined threshold value and outputs as the detection signal a signal of which a level is set as a high level or a low level in accordance with the comparison result, and thereby increases amplitude of the detection signal. A receiver-side IC receives the detection signal with the increased amplitude at a predetermined port, determines a frequency of the received detection signal, and determines the toner density on the basis of the determined frequency.
Secured pre-payment for portable communication unit
In a method of payment for service of a portable communication unit, a customer prepays a dealer for said service, the dealer forwards transaction order information about the pre-payment to a prepaid management center (PMC); and the PMC provides a bank the transaction order information. The bank, upon receipt of the transaction order information from the PMC, determines whether there are sufficient funds in the dealer account to cover the transaction. If there is insufficient cash on hand, the dealer is notified and is provided an opportunity to replenish the account so that the transaction may proceed. If there are adequate funds in the dealer account, the bank automatically transfers the amount of the purchase transaction in the SPS account, less the dealer's fee for the purchase. After funds are transferred from the dealer account, the PMC is notified of the transfer, at which time the PMC generates codes and issues the codes to the dealer. The dealer transfers the codes to the user and the user enters the codes into the unit. On a regular basis the bank electronically transfers funds from the SPS account into accounts held by parties entitled to receive the funds.
Lawful interception method and apparatus of D2D communication-capable terminal
A Lawful Interception (LI) method performed between a network and a terminal operating in Device-to-Device (D2D) communication mode to intercept D2D communication content are provided. The lawful interception method includes a D2D communication terminal according to the present disclosure includes activating a lawful interception function, storing information exchanged with a peer terminal through D2D communication, and transmitting a lawful interception report including the stored information.
Providing content to a child mobile device via a parent mobile device
A device may receive one or more preferences for providing a message-based data service. The device may receive, in a text message and from a mobile device, a content request. The content request may identify content to be obtained via a data connection. The device may filter the content request, based on the one or more preferences, to generate a filtered request. The device may obtain the content based on the filtered request and via a data connection. The device may process the content to prepare the content for providing in a text message. The device may provide the content to the mobile device in a text message after processing the content.
Electronic apparatus and method for controlling electronic apparatus
An electronic apparatus comprises an apparatus case, at least one processor, a submergence detector, and a motion detector. The at least one processor is configured to receive an incoming call from an external communication apparatus and to perform a voice call with the external communication apparatus. The submergence detector is configured to detect a submergence state in which the apparatus case is located underwater. The motion detector is configured to detect a predetermined specific motion of the apparatus case. The at least one processor controls a setting status of a motion answer mode in which the incoming call is answered and the voice call is accordingly started in response to detection, by the motion detector, of the specific motion. When the submergence state is no longer detected by the submergence detector, the at least one processor enables the motion answer mode.
Adaptive virtualization of a networked-resource between a vehicle and a peripheral device
A transportation-vehicle system including a processing hardware unit and a non-transitory computer-readable storage device comprising code causing the processing hardware unit to receive, from a mobile-electronic device, a mobile-device resource profile indicating a mobile-device resource, determine whether to use the mobile-device resource, and use the mobile-device resource in operation of the transportation-vehicle system. In another aspect, the technology relates to a mobile-electronic device including a non-transitory computer-readable storage device comprising code causing the processing unit to receive, from a transportation-vehicle system, a vehicle resource profile indicating a vehicle resource, determine whether to use the vehicle resource, and use the vehicle resource of the transportation-vehicle system in operation of the mobile-electronic device.
Mobile device control for powered door
A vehicle door system is disclosed. The system comprises an actuator, at least one communication circuit, and a controller. The actuator is configured to adjust a position of a door. The controller is configured to receive a request for the vehicle to retrieve an occupant via the communication circuit. The controller is further configured to receive an authentication signal via the communication circuit authenticating an identity of the occupant. In response to the authentication, the controller is configured to control the actuator to make the vehicle accessible to the occupant.
Adapter devices for enhancing the functionality of other devices
An adapter may facilitate easy and swift data transfer amongst two previously incompatible electronic devices. Such an adapter may be operative to communicate data with a first of the two electronic devices using a contactless communication link and a first communication protocol and to communicate data with a second of the two electronic devices using a mechanical communication link and/or using a second communication protocol that is different than the first communication protocol, such that data may be transferred between the first and second electronic devices via the adapter. The adapter may be communicatively coupled to both the first electronic device and the second electronic device at the same time. The adapter may rapidly transition between communicating data with the first device and communicating data with the second device (e.g., without altering a physical connection between the adapter and one of the first and second devices during such a transition).
Antenna and electronic device including the same
An electronic device is provided. The electronic device includes a housing including a first metallic member, a second metallic member, and a nonconductive segmenting part located between an end of the first metallic member and an end of the second metallic member, a ground member, a wireless communication circuit connected to a first point of the first metallic member through a first electrical path and connected to a second point of the first metallic member through a second electrical path, a first conductive pattern electrically connected to the first electrical path, a second conductive pattern electrically connected to the second electrical path, a first electrical variable element electrically connected between the first electrical path and the ground member, and a second electrical variable element electrically connected between the second metallic member and the ground member.
Priority-based processing of messages from multiple servers
Systems and methods for priority-based processing of messages received from multiple servers. An example method may comprise: receiving, by a first processing thread, in a non-blocking mode, a plurality of sub-application layer protocol packets from a plurality of servers; processing one or more sub-application layer protocol packets received from a first server of the plurality of servers, to produce a first application layer message; writing the first application layer message to a first message queue of a plurality of message queues associated with the plurality of servers, the first message queue corresponding to the first server; processing one or more sub-application layer protocol packets received from a second server of the plurality of servers, to produce a second application layer message; writing the second application layer message to a second message queue of a plurality of message queues associated with the plurality of servers, the second message queue corresponding to the second server; and reading, by a second processing thread, an application layer message having a most recent timestamp among a plurality of application layer messages in the plurality of message queues, the plurality of application layer messages including the first application layer message and the second application layer message.
Reducing transmission pathway lengths within a distributed network
A solution for reducing transmission pathway lengths within a distributed network, as embodied in various systems, methods, and non-transitory computer-readable storage media, may include migrating a TCP socket from a request server to a data server. The solution may further include reprogramming one or more routers to recognize a new packet route based on the migrated socket. The solution may include the one or more routers subsequently communicating directly with the data server while bypassing the request server.
Dynamic sharing and updating of an electronic form
A terminal comprising a memory and a controller is disclosed. The controller is configured to receive a selection of at least one field, analyze said at least one selected field, generate a rendering template for said at least one selected field, share said rendering template with a visitor terminal via a server, receive data being associated with said rendering template from said visitor terminal, match said received data to said at least one selected field, and input said received data into said at least one selected field.
Apparatus, method and system of quality of experience indication
Some demonstrative embodiments include devices, systems and methods of quality of experience indication. For example, an apparatus may include a radio configured to communicate encoded multimedia data during a session over a wireless communication channel; and a Quality of Experience (QoE) estimator configured to determine at least one QoE indicator corresponding to the session, and to provide the QoE indicator to a session manager of the session, the QoE estimator configured to determine the QoE indicator based at least on a mean opinion score (MOS) corresponding to the encoded multimedia data, and a channel quality parameter corresponding to the wireless communication channel.
Method and apparatus for pre-fetching place page data for subsequent display on a mobile computing device
A computer-implemented method and system for pre-fetching place page data from a from a remote mapping system for display on a client computing device is disclosed. User preference data collected from various data sources including applications executing on the client device, online or local user profiles, and other sources may be analyzed to generate a request for place page data from the remote mapping system. The user preference data may indicate a map feature such as a place of business, park, or historic landmark having the characteristics of both a user's preferred geographic location and the user's personal interests. For example, where the user indicates a geographic preference for “Boston” and a personal interest for “home brewing” the system and method may request place page data for all home brewing or craft beer-related map features near Boston.
Systems and methods for a bidirectional multi-function communication module
Systems and methods are disclosed for bidirectional multifunction communication between a computing device and applications located at an external server. The bidirectional communications allows an operation to be performed on a file using a computing device and an external server. In one implementation, an application resides on a desktop computer that is connected to the Internet. The application sends a request to an external server accessible through the Internet using a bidirectional communication system. The server accepts and processes the request and provides data back to the computer via the same bidirectional communication system. A user may then access the data, manipulate it and provide an additional request to the server via the bidirectional communication system.
Feedback layer for native content display in virtual desktop infrastructure
In one embodiment, a mobile computing device receives content in a desktop compatible format. The content is generated by a remote desktop executing an application. The mobile computing device determines a conversion of at least a first portion of the content to a native display format of the mobile computing device and displays the conversion of the at least the first portion of the content in the native display format on an interface. Also, the mobile computing device displays at least a second portion of the content in the desktop compatible format on the interface where the at least the second portion of the content in the desktop compatible format corresponds to the conversion of the at least the first portion of the content in the native display format of the mobile computing device.
Template generator for frequently occurring application programming interface call sequences
A system includes a plurality of computing nodes. Each computing nodes includes a processor and memory. The computing nodes include a plurality of instances and a template generator. The template generator is configured to receive a plurality of application programming interface (API) calls to the configure instances, detect a pattern in the received plurality of API calls, and generate a template based on the detected pattern, the template executable to configure an instance.
Distributed self-served application remoting
Techniques disclosed herein provide an approach for distributed self-served application remoting. In one embodiment, a user's own computing device, on which a remoted application runs, transmits user interface updates to a destination device which displays the updates and communicates back inputs (e.g., keyboard and mouse inputs) made at the destination device. The user may select an application for remoting by moving the application's window outside the boundaries of a desktop. This is similar to moving the application across computer screens in a multi-monitor setup and may create the illusion of a boundless desktop. In another embodiment, the user may remote the application to multiple destination devices using a “broadcast” mode. In yet another embodiment, the user may remote the application to a virtual machine.
Virtualizing device management services on a multi-session platform
Methods, systems, computer-readable media, and apparatuses may provide virtualization of device management services (e.g., device drivers) dedicated managing a particular device and designed under for or under the assumption the particular device and the device management service will be utilized in a single session/user environment, so that virtual instances of the device management services may be used in a multi-session environment. Further, a redirection and/or virtualization layer may be created for each session in the multi-session environment to perform global database redirection, object name translation, and file system translation to ensure session boundaries are maintained and global/shared resources are not inappropriately altered by a session. As an example, the redirection/virtualization layer may redirect communications associated with a session and for a global resource to access a virtual instance of the resource specific to the session.
IP-address distribution system utilizing a plurality of switching devices grouped into two or more groups
An IP-address distribution system according to the present invention includes a network formed by a plurality of switching devices, and a plurality of IP-address distribution devices connected to the network, wherein the switching devices are grouped into two or more groups, and the switching devices interrupt an IP-address request signal transmitted from a terminal that requests allocation of an IP address at a physical port to which a switching device in another group is connected.
Highly available network filer with automatic load balancing and performance adjustment
Techniques are provided for exporting one or more file systems through multiple nodes of a cluster. One or more of the exported file systems may be simultaneously exported through a single node of the cluster. A bundle, or mapping between a node in the cluster and a file system, is created. The bundle represents an amount of work assigned to the node. A bundle is reassigned from one node to another node in the cluster in response to a failover, an addition of a new node to the cluster, or in response to a load balancing determination.
Assessment of service level agreement compliance
In accordance with the teachings of the present disclosure, a method of assessment of service level agreement compliance is disclosed. The method may include defining, in a synthetic application definition, a plurality of resource consumptions, wherein the plurality of resource consumptions are equivalent to consumptions by a candidate application, and distributing the synthetic application definition to a synthetic application in a node of a computing system. The method may further include consuming, with the synthetic application and based on the synthetic application definition, a plurality of quantities of resources of a plurality of nodes of the computing system. The method may additionally include recording a performance of the synthetic application, and comparing the recorded performance to a requirement of a service level agreement (SLA). The present disclosure additionally includes associated systems and apparatuses.
Mechanism for sharing of information associated with events
Techniques are provided that allow users to collaborate in relationship to data views, application displays, applications or events. A user can type in a text view related to a specific view in an application display, and the information is shared with other users that take part in sharing that view. A user that expresses an interest in an event is notified about the event and has the capability to interact, in relation to the event, with other users (e.g. by text). The particular form of interaction (and sharing) can be selectively specified. This interaction is comparable to a dynamic bulletin board where the subject is event driven. In the case of an event interest(s), users specify their interest (e.g. in other user application events or system events) and the system automatically alerts them to the occurrence of the event.
Playlist compilation system and method
A method, computer program product and client electronic device for storing, in a memory of a client electronic device, a location of at least one remote media data file available to stream from a server device. A location of at least one local media data file available on the client electronic device is stored in the memory of the client electronic device. A playlist is compiled that defines the location of the at least one remote media data file and the location of the at least one local media data file. The at least one local media data file and the at least one remote media data file in the playlist are rendered and metadata concerning the at least one local media data file rendered is transmitted to the server device.
System, apparatus, method and program for processing information
In response to a request, one of primary content data as a copyrighted work and incidental content data is received from a server. With a music editing and sharing application, the content data is used in a secondary usage fashion for editing in order to produce new incidental content data. The incidental content data is not the one that is produced by arranging directly the primary content data as an editing material but play control information for giving an instruction defining a play mode. The incidental content data is uploaded to an incidental content server.
Wireless control of streaming computing device
The disclosed subject matter includes techniques for wireless control. A system includes a processor. The system also includes a computer-readable memory storage device storing executable instructions that can be executed by the processor to cause the processor to receive a connection request from a wireless controller. The processor can also send a request for a media stream and a request for a wireless monitoring acknowledgement to a host device. The processor can also receive a response from the host device with the wireless monitoring acknowledgment. The processor can also further receive a message from the host device acknowledging a reception with the wireless controller. The processor can stop monitoring for control data from the wireless controller in response to the host device acknowledging the reception with the wireless controller. The processor can further receive the media stream from the host device.
Real-time alignment and processing of incomplete stream of data
Techniques are disclosed for processing and aligning incomplete data. A stream of data is received from a data source including a plurality of reads. While receiving the stream of data and prior to having received all of the plurality of reads, a set of reads is extracted from the plurality of reads. Each of the set of reads is aligned to a corresponding portion of a reference data set. For each particular position of a plurality of particular positions of the reference data set, a subset of reads of the aligned set of reads is identified. A value of a client data set is generated based on the subset of reads. A variable is generated based on the client data set. Data is routed when a condition, based on the variable, is satisfied.
Phoning into virtual communication environments
A web browser interface for visualizing realtime network communications in spatial communication environments allows communicants to interact with other communicants in an immersive spatial communication environment without having to install any specialized communication software and without requiring special proxies or firewall additions or exceptions.
Network interface device and method having passive operation mode and noise management
A system, method and device provide passive operation mode and noise management. The system, in one embodiment, includes power loss bypass and upstream noise management.
Trunking communication system, trunking server, access network and trunking communication method
A trunking communication system, a server, an access network and a trunking communication method are disclosed. The system includes a trunking management server and an access network, the trunking management server includes a trunking call service control module and a connected trunking call media gateway module, where: the trunking call media gateway module is configured to receive service data sent through the access network by a trunking UE, and forward the service data according to a communication type of the service data for implementing user plane communication of the trunking UE; and the trunking call service control module is configured to receive a communication request sent through the access network by a trunking UE, and perform call control and bearer management on the trunking UE according to a communication type of the communication request for implementing control plane communication of the trunking UE.
Approach for managing access to data on client devices
A device management system is configured to manage access to electronic documents on client devices using policies. The policies specify one or more download and processing restrictions to be enforced with respect to the particular electronic document at client devices for example, particular hardware and software configurations that are required at client devices before data is permitted to be downloaded to those client devices. The policies may also specify other requirements that must be satisfied before data is permitted to be downloaded to those client devices, for example, user authentication.
Metadata-based verification of artifact quality policy compliance
An automated quality compliance verifier QCV identifies a quality control policy to be implemented for artifacts in a repository. The QCV determines one or more artifact metadata categories, including at least one category indicating an activity status (such as recent or ongoing use) of the artifacts. Metadata entries for at least the activity status category are obtained for a first and a second artifact. Based on an analysis of the metadata entries, the QCV assigns a higher priority to a first policy violation detection operation (PVDO) for the first artifact than to a second PVDO for the second artifact. Based on a result of the first PVDO, the QCV initiates one or more responsive actions.
Taint injection and tracking
An embodiment or embodiments of an electronic device can comprise an input interface and a hardware component coupled to the input interface. The input interface can be operable to receive a plurality of taint indicators corresponding to at least one of a plurality of taints indicative of potential security risk which are injected from at least one of a plurality of resources. The hardware component can be operable to track the plurality of taints.
Server grouping system
In one embodiment, a method includes receiving client-server connection data for clients and servers, the data including IP addresses corresponding to the servers, for each one of a plurality of IP address pairs performing a statistical test to determine whether the IP addresses in the one IP address pair are related by common clients based on the number of the clients connecting to each of the IP addresses in the one IP address pair, generating a graph including a plurality of vertices and edges, each of the vertices corresponding to a different IP address, each edge corresponding to a different IP address pair determined to be related by common clients in the statistical test, and clustering the vertices yielding clusters, a subset of the IP addresses in one of the clusters providing an indication of the IP addresses of the servers serving a same application.
Browser initiated reporting of fraud
A method and apparatus for providing safety feedback to web browsers. A web browser contacts a remote server that monitors web site safety and provides a universal resource locator (URL) for a web site the client is about to access. The web site safety or tracking server checks its database for reports of issues related to the URL and provides information on any such issues. The user of the web browser can then make an informed decision about whether to continue the access of the website associated with the URL. The user of the web browser can also send reports of unwanted activities by any website. This information is analyzed and added to the database maintained by the remote server.
Tracking data in an online environment
To detect potentially malicious behavior or fraud, online environments maintain counts of a variety of data items received via a webpage or an application. A bucket scheme to track and retrieve these counts is described. The bucket system maintains a rolling count over a period of time. The bucket system comprises three different tiers, each containing buckets corresponding to different periods of time. When a new data item is received, one bucket in each tier is updated. The bucket is updated by generating a bucket address and initiating or incrementing a counter counting the number of times the data item was received. To retrieve the count over a specified period of time, the counters in a plurality of the buckets are read and aggregated.
Method for secure web browsing
The invention relates to a computer-implemented method for secure web browsing. The method includes: receiving a request submitted from a browser, the browser running in a default runtime environment; evaluating by the proxy module, the received request and/or evaluating the requested content; in case the request is determined to request insecure content and/or in case the requested content is determined to comprise insecure content, sending, by the proxy module, a copy of the received request to a receiver module running in a secure runtime environment; in case the request is determined to request secure content, sending a copy of the request to the remote server.
Method for detecting security error in mobile telecommunications system and device of mobile telecommunications
According to one embodiment, a method of performing a re-establishment procedure in a mobile communication system includes: receiving at least one packet data convergence protocol (PDCP) control plane data unit; performing an integrity check on the at least one PDCP control plane data unit; identifying an integrity check failure with regard to the at least one PDCP control plane data unit; and performing a re-establishment procedure if the integrity check failure is identified to exist with regard to the at least one PDCP control plane data unit.
Managing temporal aspects of accounts and entitlements
A method and system for managing temporal aspects of accounts and entitlements in target systems in an organization is provided. In an embodiment, an identity management system may receive request to create an account on a target system of the organization. In some embodiments, the identity management system may cause, in co-operation with the target system, the account to be created in the target system, at a first time. In some aspects, the identity management system may associate a second time with the account. In some examples, the second time may correspond to an activation time of the account. In some embodiments, the identity management system may cause in co-operation with the target system, the account to be activated on the target system, at the second time.
System, method and computer program product for managing access to systems, products, and data based on information associated with a physical location of a user
In accordance with embodiments, there are provided mechanisms and methods for managing access to data based on information associated with a physical location of a user. These mechanisms and methods for managing access to systems, products, or data based on information associated with a physical location of a user can enable improved data management efficiency, enhanced data management accuracy, decreased data management costs, decreased licensing costs, increased security, additional marketing opportunities, etc.
Systems and methods for secure resource access and network communication
Systems and methods for secure resource access and network communication are provided. A plurality of policies are received on a client device, each policy comprising a respective resource and a respective permission for a respective action that can be performed by a user of the client device in regards to the resource. A first application, which is configured to store data in an encrypted repository on the client device, receives a request to open a resource. The first application determines that one of the policies prohibits access by the resource to the encrypted repository and, based thereon, selects a different second application to open the resource that does not have access to the encrypted repository. The second application then opens the resource.
Priority resolution for access control list policies in a networking device
Access control lists (ACLs) permit network administrators to manage network traffic flowing through a networking element to optimize network security, performance, quality of service (QoS), and the like. If a networking element has multiple ACLs directed towards different types of network optimization, each ACL may return a separate action set that identifies one or more actions the networking element should perform based on a received frame. In some cases, these action sets may conflict. To resolve the conflicts, a networking element may include resolution logic that selects one of the conflicting actions based on a predefined precedence value assigned to each action in an action set. By comparing the different precedence values, the resolution logic generates a new action set based on the actions with the highest precedence value.
Method and system for visibility and control over access transactions between clouds using resource authorization messages
A computing system detects an access transaction based on one or more resource authorization messages transmitted via a resource authorization protocol. The access transaction pertains to access of a protected resource by a consumer cloud, the protected resource hosted by a provider cloud. The computing system generates relationship data based on the resource authorization messages. The relationship data can indicate a resource owner that is granting the access, the consumer cloud, and/or the provider cloud. The computing system performs an access control action in relation to the access transaction based on the relationship data. The access control action can be allowing the consumer cloud access to the protected resource or denying the consumer cloud access to the protected resource.
Systems and methods for creating and displaying an electronic communication digest
Systems and methods are disclosed for creating an electronic communication digest. In one implementation, a system receives a first electronic communication including first content, and generates an electronic communication digest that reflects the first electronic communication by including first digest content generated based on the first content. The system receives a second electronic communication that includes second content, and determines a repeated portion of the second content that is included in the first content and a unique portion of the second content that is unique to the first content. The system also update the electronic communication digest to reflect the second electronic communication by adding second digest content generated that includes the unique portion of the content and does not include the repeated portion of the second content.
Domain joined virtual names on domainless servers
Services from domainless machines are made available in a security domain under a virtual name. Each machine is not joined to the domain but can reach a security domain controller. The controller controls at least one security domain using an authentication protocol, such as a modified Kerberos protocol. One obtains a set of security domain credentials, generates a cluster name secret, gives the cluster a virtual name, and authenticates the machines to the domain controller using these items. In some cases, authentication uses a ticket-based protocol which accepts the cluster name secret in place of a proof of valid security domain membership. In some, the domain controller uses a directory service which is compatible with an active directory service; the cluster virtual name is provisioned as an account in the directory service. The cluster virtual name may concurrently serve clients on different security domains of the directory service.
Scanning of password-protected e-mail attachment
A computer analyzes a message attachment protected by a password. The message is intercepted from a sender before the message reaches the recipient. The computer cannot open, decrypt, unpack or decompress the attachment because the computer cannot parse the password. The message is modified to render the attachment unusable by the recipient and a URL is added. After the modified message is sent to the recipient, the computer receives the correct password from the recipient allowing the computer to open the attachment and perform anti-malware scanning. If malicious, the attachment is quarantined, deleted or blocked. If not malicious, the attachment (password-protected or not) is downloaded to the recipient, sent by e-mail or text message, or made available on a Web site. The recipient may be a mobile device or computer. Software may be part of an e-mail server, part of a mail transfer agent, or part of a separate computer.
Method and system of providing a picture password proof of knowledge as a web service
A server provides a picture password proof of knowledge. The server includes a processor creating a user identifier when communicating with a relying party (RP) server, sending the identifier to the RP server, creating a login token in response to a user authentication request originating from a client browser (CB), sending a web address containing the login token to the RP server, receiving and authenticating actions from the CB regarding the proof of knowledge, generating and sending an authentication token to the CB responsive to the received and authenticated actions, receiving from the RP server a request for an identification token, the request including the authentication token, and generating and sending the identification token to the RP server to enable the user at the CB to be verified and logged-in to the RP server.
Information processing apparatus, information processing method, and information processing program
It is an object to allow for simplification of authentication information to be input by a user while ensuring security. An information processing apparatus identifies a current situation in which a user is placed. The information processing apparatus obtains a past situation in which the user was placed at the time of past authentication. When the user is currently authenticated, the information processing apparatus simplifies authentication information to be entered by the user, depending on the current and past situations. The information processing apparatus outputs information prompting for the simplified authentication information.
Accessing network services using a network access service
A network access service operates as an intermediary between client applications and network services. The network access service is configured to perform one or more authentication processes required by the network services on behalf of the client applications. This includes the network access service obtaining and managing access tokens on behalf of the client applications. The network access service reuses access tokens and automatically acquires new access tokens upon expiration. The network access service is also configured to format data from a client application into a format required by a network service and to provide application program interface and language support required by a network service.
Method and system for Internet of things capability integration
Disclosed is an Internet of things capability integration system, which relates to the field of Internet of things, and the field of telecommunication network and Internet. The disclosed Internet of things capability integration system includes: an Internet of things capability integration access platform, configured to be accessed by Internet of things capability devices, authenticate the accessed Internet of things capability devices, develop Internet of things capability services based on the accessed Internet of things capability devices, and load the developed Internet of things capability services; an Internet of things capability operation management platform, configured to perform an operation management operation on the Internet of things capability services developed and loaded by the Internet of things capability integration access platform; and an Internet of things capability opening management platform, configured to open the Internet of things network capability services developed and loaded by the Internet of things capability integration access platform, and perform an management operation on the opening of the Internet of things capability services. An Internet of things capability integration method is also disclosed. The present technical schemes sufficiently exert the operation capability and resources of operators, and cover the shortage of the current Internet of things industry development.
Communication system, communication apparatus, communication method, and computer program
Content is transmitted within a range of the user's legitimate use while limiting the number of equipment to which the content is transmitted at the same time.A content using apparatus periodically transmits an exchange key and the corresponding key ID using a command. Only while receiving the key ID at predetermined reception cycles, a content providing apparatus maintains the corresponding exchange key. When not periodically receiving the key ID, the content providing apparatus destroys the corresponding exchange key. After that, when receiving a command including the key ID, the content providing apparatus returns a response including information indicating that the exchange key has become invalid.
Manage encrypted network traffic using DNS responses
The present disclosure generally relates to managing encrypted network traffic using Domain Name System (DNS) responses. One example method includes requesting an address associated with the a domain name included in a predetermined set of domain names for which secure requests are to be identified; receiving a response from the resolution server including one or more addresses associated with the domain name; associating with the domain name a particular address selected from the received addresses; receiving a request to resolve the domain name; sending a response to the request to resolve the domain name including the particular address associated with the domain name; receiving a secure request for a resource, the secure request directed to the particular address associated with the domain name; and determining that the secure request is directed to the domain name based on the association between the particular address and the domain name.
Methods and devices for acquiring media access control (MAC) address
Provided are methods and devices for acquiring a Media Access Control (MAC) address. According to a method for acquiring an MAC address, an MAC address request message is received, wherein the MAC address request message carries a Fibre Channel Identifier (FCID); whether the FCID is matched with an FCID of a receiver receiving the MAC address request message or not is judged; and when it is judged that the FCID is matched with the FCID of the receiver receiving the MAC address request message, the receiver sends a response message, wherein the response message carries an MAC address of the receiver. The technical solution solves the problem in a related technology that communication cannot be directly performed through the link layer, and has the effect of directly acquiring an MAC address corresponding to an FCID of an opposite end so as to perform communication by fast switching at the link layer.
Method, sending terminal, receiving terminal, and system for classifying emails
Embodiments of the present application relate to a method for classifying emails, a sending terminal for classifying emails, a receiving terminal for classifying emails, and a computer program product for classifying emails. A method for classifying emails is provided. The method includes acquiring an email composed by a user, a classification tag corresponding to the email, and an identification code corresponding to the email, including the classification tag corresponding to the email and an identification code corresponding to the email in the email, and sending the email to receiving terminals.
Tracking messages in a mentoring environment
Tracking messages in a mentoring environment includes presenting to a reviewer a computer-based activity tracking form that is populated with data from an underlying relational database. The underlying relational database includes a content of e-mail messages addressed to an adult mentor and a content of e-mail messages addressed to a juvenile protégé. The underlying relational database also includes a status of e-mail messages between the adult mentor and juvenile protégé as determined by an e-mail interceptor. A status of an e-mail, between the adult mentor and the juvenile protégé, which has been intercepted by the e-mail monitor is displayed. In response to a displayed status indicating that the e-mail has not been reviewed, transmission of the e-mail to an intended recipient is blocked. In response to the displayed status indicating that the e-mail has been reviewed, transmission of the e-mail to the intended recipient is enabled.
Methods and systems for analysis and/or classification of information
Methods and systems for analysis and/or classification of electronic message information so as to capture and identify salient objects exchanged during electronic message passing in order to impute certain information about the object, groups of objects, the message, groups of messages, the parties, communities involved in the message exchange or combinations, thereof.
Method for selectively turning off a switch in a switch arrangement for current distribution, and corresponding switch arrangement
A method is disclosed for selectively turning off a switch arrangement for current distribution. A corresponding switch arrangement is also disclosed, including an upstream switch and a directly downstream switch connected in series, each switch being configured to check a current condition associated therewith. Connected between the upstream switch and the downstream switch is a communication link onto which the downstream switch puts a delay signal if its current condition is met and there is no fault present. Following reception of the delay signal, the upstream switch opens only after a delay time. In order to ensure turning off when there is a fault in the opening of a downstream switch even in the case of small overcurrents, when the current condition is met and the fault that prevents opening occurs, the downstream switch puts a fault report onto the communication link that trips the upstream switch.
Method and apparatus for adaptive packet aggregation
A method and apparatus for handling data packets transmitted via a communication tunnel are provided. Tunnel parameters corresponding to transmission of data packets via the communication tunnel are monitored, and aggregation parameters are adjusted based on the tunnel parameters. Based on the current aggregation parameters, the data packets can be aggregated into aggregate data packets for transmission via the communication tunnel. The aggregation parameters can be an aggregation window size. The tunnel parameters can be: end-to-end packet delay of the communication tunnel; throughput of the communication tunnel; and status of one or more queues, such as queue size, belonging to routers of the communication tunnel.
Transmission path and data processing method for transmission path
The present invention provide a transmission path, including: an FD storage module, configured to receive and store an FD; a calculating module, configured to determine, according to a length value of the first frame stored in the FD storage module, a volume of data stored in the transmission path; a determining module, configured to determine whether the volume of the data stored in the transmission path determined by the calculating module is greater than a preset data volume threshold; and an instructing module, configured to send a backpressure signal to the TM module when the determining module determines that the volume of the data stored in the transmission path is greater than the preset data volume threshold, where the backpressure signal is used to instruct the TM module to stop sending an FD of the second frame to the transmission path.
Systems and methods for allocation of classes of service to network connections corresponding to virtual channels
A system for allocating a different class of service to each network connection in a plurality of network connections, where each network connection corresponds to one or more virtual channels. The system can include a plurality of virtual channels that connect a first computer and a second computer. Each virtual channel can service at least a portion of the network traffic generated using a remote-display protocol. The system can also include a plurality of network connections, where each network connection corresponds to at least one of the virtual channels. Each network connection of the system can have an assigned port number and an assigned class of service that corresponds to a transmission priority level. The class of service assigned to each network connection can be unique from the classes of service assigned to other network connections.
Virtual private network (VPN)-as-a-service with load-balanced tunnel endpoints
A mechanism to facilitate a private network (VPN)-as-a-service, preferably within the context of an overlay IP routing mechanism implemented within an overlay network. The overlay provides delivery of packets end-to-end between overlay network appliances positioned at the endpoints. During such delivery, the appliances are configured such that the data portion of each packet has a distinct encryption context from the encryption context of the TCP/IP portion of the packet. By establishing and maintaining these distinct encryption contexts, the overlay network can decrypt and access the TCP/IP flow. This enables the overlay network provider to apply one or more TCP optimizations. At the same time, the separate encryption contexts ensure the data portion of each packet is never available in the clear at any point during transport. According to another feature, data flows within the overlay directed to a particular edge region may be load-balanced while still preserving IPsec replay protection.
Filtering and route lookup in a switching device
Methods and devices for processing packets are provided. The processing device may include an input interface for receiving data units containing header information of respective packets; a first module configurable to perform packet filtering based on the received data units; a second module configurable to perform traffic analysis based on the received data units; a third module configurable to perform load balancing based on the received data units; and a fourth module configurable to perform route lookups based on the received data units.
Device and method for increasing packet processing rate in a network device
A first set of bits is extracted from a header of a first packet. A second set of bits is extracted from a header of a second packet. The first set of bits and the second set of bits are combined into a combined single data unit representing the first packet and the second packet. The combined single data unit is transferred to a packet processing device. The packet processing device decomposes the single data unit to extract the first set of bits corresponding to the first packet and the second set of bits corresponding to the second packet. A first reduced set of processing operations is performed to process the first packet using the first set of bits corresponding to the first packet. A second reduced set of processing operations is performed to process the second packet using the second set of bits corresponding to the second packet.
Assessing response routes in a network
Method and system are provided for assessing response routes in a network of connected nodes wherein a querying node propagates a query through multiple routes of intermediate nodes to a data source node and the data source node returns data to the querying node. The method at a data source node may include: receiving a query instance including metadata with route information of the route of intermediate nodes in the network that the query instance has travelled through from a querying node to the data source node; comparing the route information to a route policy; and responding to a query instance which meets the route policy by returning the query response via the route of intermediate nodes of the query instance.
Producing routing messages for voice over IP communications
A process and apparatus to facilitate communication between callers and callees in a system comprising a plurality of nodes with which callers and callees are associated is disclosed. In response to initiation of a call by a calling subscriber, a caller identifier and a callee identifier are received. Call classification criteria associated with the caller identifier are used to classify the call as a public network call or a private network call. A routing message identifying an address, on the private network, associated with the callee is produced when the call is classified as a private network call and a routing message identifying a gateway to the public network is produced when the call is classified as a public network call.
Method for multi-chassis redundancy using anycast and GTP TEID
A method is implemented by a network device for improving availability of network component using multi-chassis redundancy by efficiently re-routing data traffic intended for the network component in the event of a link or node failure. The network device is in a set of network devices hosting the network component each network device in the set of network devices having a shared cluster identifier and a separate node identifier. The set of network devices hosting the network component share a virtual internet protocol address.
Assigning selected groups to routing structures
Selected ones of multiple groups of network entities are assigned to corresponding routing structures, where each of the routing structures defines a set of paths through a network among network entities of a corresponding one of the groups. The assigning considers available multicast resources in communication nodes in the network, and a criterion relating to reducing overall cost in the assignment of the selected groups to the corresponding routing structures.
Sending traffic policies
Sending traffic policies includes identifying a location of an issue source with a first router in a network layer of an interconnected network and sending to a second router located along a route towards the issue source a traffic policy that addresses an issue caused with the issue source.
Method of detecting packet loss in a communication network
Systems and methods for detecting packet loss in a communication network are provided. A first network element can determine that a first group of packets meets an observation threshold. The observation threshold can comprise a predetermined number of packets in a sequence. A first timer can be initiated when the first group of packets meets the observation threshold. A first packet can be detected at the first network element after the first timer is initiated. The first timer can be re-initiated when the first packet is detected at the first network element before the first timer expires and the first packet comprises a packet in the sequence greater than a last detected packet. A first packet loss can be determined when the first packet is not a next packet in the sequence.
Methods and apparatus for providing adaptive private network centralized management system time correlated playback of network traffic
System and techniques are described for time correlated playback of traffic patterns between nodes in a network. Node statistics of data transfers between nodes are received in a control point, wherein the node statistics include a time stamp (tn) according to time at the control point of when a request statistics message was sent to each node, a node timestamp (ta) according to time at each node of when the message was received in the node, and a first delta between tn and ta that is used to determine a second delta which adjusts the node statistics. The node statistics adjusted according to the second delta are stored in a statistics database at the control point. A time stepping mechanism is used to repeatedly access the node statistics from the statistics database at a predetermined rate for playback presentation beginning from a specified start time to a specified end time.
System, method and article of manufacture for automatic detection and storage/archival of network video to offload the load of a video management system (VMS)
A storage system that is not a video management system (VMS) offloads load of the VMS by passively monitoring network traffic originating at a source intended for the VMS, automatically detecting video data in at least a portion of the monitored network traffic, and offloading load of the VMS by storing the video data in the storage system instead of the VMS. In another scenario, A storage system passively monitors network traffic originating at a source intended for a VMS, automatically detects both high-resolution and low-resolution video data from the source in at least a portion of the monitored network traffic, and stores the high-resolution video data in the storage system instead of the VMS.
System and method for discriminating nature of communication traffic transmitted through network based on envelope characteristics
A system and method are provided for discriminating the nature of traffic flowing through a computer network. Various types of traffic are distinguished. For example, traffic sourced by a software application that generates them may be distinguished. The problem of detecting malicious traffic either originating outside a target network, or inside a target network from a compromised computer is addressed, as is the problem of distinguishing malicious traffic from legitimate web surfing or other applications activity. Traffic distinctions are made based on signal envelope characteristics in such manner as to preserve robust performance even when the subject traffic is encrypted.
Method, apparatus, and system for determining a location corresponding to an IP address
Determining a location corresponding to an Internet Protocol (IP) address includes collecting an IP address and location information corresponding to the IP address, wherein the location information corresponding to the IP address includes information identifying a location from which a terminal associated with the IP address accesses a network, obtaining one or more pieces of IP address geographic coordinate data for the IP address using the IP address and the location information corresponding to the IP address, determining geographic coordinates corresponding to the IP address based at least in part on the one or more pieces of IP address geographic coordinate data, determining an IP address field based at least in part on the geographic coordinates corresponding to the IP address, and determining a location corresponding to the IP address field.
Response rate limiting device
A response rate limiting device is provided in order to reduce a volume of data which may correspond to amplification attack. The rate liming device may receive a set of packets and determine identification information corresponding to the packets. The rate limiting device may then update a score associated with the determined identification information, the score may be maintained in a buffer. If the score information is above a threshold, the rate limiting device determine to delay a response associated with the identification information.
Enabling a tag to show status
System, method, and computer program product to display the status of tags applied to objects in a cloud computing environment, by comparing an attribute of an object to a criterion of a tag applied to the object, wherein the object is part of the cloud computing environment, and outputting for display a graphical representation of the tag, wherein the graphical representation comprises a text of the tag and an indication of a result of the comparison.
Enabling cross-realm authentication between tenant and cloud service provider
A first network adapter is inserted into a first resource server of each tenant of a plurality of tenants serviced by a cloud service provider. The first network adapter is configured to be controlled by the cloud service provider. The first resource server of each tenant includes a second network adapter configured to be controlled by the tenant. Each of the first network adapter is operably coupled with an interconnection network infrastructure. The interconnection network infrastructure is operably coupled with cloud service provider infrastructure. Related methods, techniques, apparatuses, systems, non-transitory computer program products, and articles are also described.
Applying policies to subnets
Associations are maintained among a plurality of subnets, policies, and client types. Each subnet has an associated client type and policy. For a particular client device, (i) a client type of the particular client device, and (ii) a client type associated with the subnet on which the particular client device is hosted is determined. For the particular client device, (i) the determined client type of the particular client device with (ii) the determined client type associated with the subnet on which the particular client device is hosted is compared. Responsive to a determination that the client type of the particular client device matches the client type associated with the subnet that hosts the particular client device, a policy is applied to the particular client device.
Application scenario identification method, power consumption management method, apparatus, and terminal device
A method for identifying an application scenario of a terminal device, where the method includes analyzing an application program running on a terminal device by means of compilation to obtain characteristic data of the application program; and determining, from a scenario characteristic data set according to the characteristic data of the application program, application scenario information corresponding to the characteristic data of the application program, where the scenario characteristic data set includes a correspondence between multiple types of application scenario information and characteristic data of multiple application programs. Because characteristic data of an application program is more likely to be unique in describing a corresponding application scenario, application scenario information corresponding to the characteristic data of the application program is relatively accurate. Therefore, an application scenario of a terminal device can be relatively accurately identified according to the embodiments of the present disclosure.
Shortest path bridging (SPB) configuration of networks using client device access of remote
Implementations relate to configuration of networks using client device access of a remote server. In some implementations, a method includes requesting a management server from an end device for shortest path bridging (SPB) configuration information for the end device to communicate on an SPB network, where the end device communicates with the management server over a non-SPB connection. The SPB configuration information is received from the management server, and the SPB configuration information is sent to an edge configuration device connected to the end device, where the SPB configuration information causes configuration of the edge configuration device to allow communication of the end device on the SPB network.
Connectivity-aware virtual network embedding
Embedding a virtual network onto a physical network may be done in such a manner to ensure that the embedded virtual network maintains connectivity in the event of failure of k links in the physical network. The embedding determines virtual links that must be embedded onto disjoint paths in the physical network and then embeds the virtual network according to ensure the determined virtual links are embedded on disjoint paths.
Hybrid content delivery network (CDN) and peer-to-peer (P2P) network
A content delivery network (CDN) typically includes a mapping system for directing requests to CDN servers. One or more peer machines become associated with the CDN, and the CDN mapping system is then used to enable a given peer to locate another peer in the P2P network, and/or a CDN server. Using this hybrid approach, CDN customer content may be delivered from the CDN edge network, from the P2P network, or from both networks. In one embodiment, customer content is uploaded to the CDN and stored in the edge network, or in a storage network associated therewith. The CDN edge network is then used to prime the P2P network, which may be used to take over some of the content delivery requirements for the customer content. The decision of whether to use edge network or peer network resources for delivery may be based on load and traffic conditions.
Sampling phase difference compensation apparatus and method, and communication device capable of compensating sampling phase difference
A sampling phase difference compensation apparatus includes a signal generator, a signal analyzer and a compensator. The signal generator generates a first signal and a second signal, and outputs the first and second signals to a first path in a first time interval and a second path in a second time interval, respectively. The signal analyzer receives a transmitted first signal from the first path and a transmitted second signal from the second path, and performs a predetermined calculation on the transmitted first and second signals to determine a phase difference relationship, which is associated with a frequency-dependent phase difference and a sampling phase difference, between the transmitted first and second signals. The transmitted first signal is associated with the first signal, and the transmitted second signal is associated with the second signal. The compensator performs a phase difference compensation according to the phase difference relationship.
Quadrature spatial modulation system
The invention is directed to systems and methods for quadrature spatial modulation in the transmission of over a wireless network. A plurality of transmit antennas are configured in a spaced apart configuration, with each antenna representative of a spatial constellation symbol comprising an in-phase component and a quadrature component. A transmission unit is configured to map source data to the spatial constellation symbol of the transmit antennas, and to transmit a carrier signal comprising the in-phase and quadrature components out of phase. At least one receiving antenna is configured to receive the carrier signal, and at least one receiving unit is configured to demodulate the carrier signal to generate the source data.
Extracting sub-bands from signals in a frequency domain
Embodiments are disclosed for extracting sub-bands of interest from signals in a frequency domain for transmission via a distributed antenna system. In one aspect, a transformed downlink signal is generated by performing a frequency transform on a downlink signal. The transformed downlink signal represents the downlink signal in a frequency domain. At least one sub-band of the transformed downlink signal is identified as including data to be transmitted via the distributed antenna system. The sub-band is extracted from the transformed downlink signal for transmission via the distributed antenna system.
Peak suppression device
A peak suppression device includes an acquiring unit that acquires multiple envelopes of carrier signals that are included in a multicarrier signal, an adding unit that adds the envelopes to generate a combined envelope, a detecting unit that detects a peak value and a peak timing of the multicarrier signal by using the combined envelope, and a suppressing unit that suppresses a peak of the multicarrier signal in accordance with the peak value and the peak timing.
Apparatus for transmitting broadcast signals, apparatus for receiving broadcast signals, method for transmitting broadcast signals and method for receiving broadcast signals
A method and an apparatus for transmitting broadcast signals thereof are disclosed. The apparatus for transmitting broadcast signals comprises an encoder for encoding DP (Data Pipe) data corresponding to each of a plurality of DPs, a mapper for mapping the encoded DP data onto constellations, a time interleaver for time interleaving the mapped DP data at DP level, a frame builder for building at least one signal frame including the time interleaved DP data, a modulator for modulating data in the built at least one signal frame by an OFDM (Orthogonal Frequency Division Multiplex) scheme and a transmitter for transmitting the broadcast signals having the modulated data.
Communicaton unit, circuit for quadrature sampling error estimation and compensation and method therefor
A communication unit comprises a modem configured to generate a first and second test digital quadrature signal. The modem is configured to: estimate a first sampling error performance associated with a first quadrature path from the first received test digital quadrature signal; estimate a second sampling error performance associated with a second quadrature path from the second received test digital quadrature signal; and generate at least one sampling error compensation signal based on the first estimated sampling error performance and second estimated sampling error performance to be applied to at least one of the receiver and transmitter.
Receiver DC offset calibration with antenna connected
Systems and methods for determining the DC offset of a wireless device including the antenna are disclosed. Systems and methods for calibrating or cancelling the DC offset are also disclosed.
Terminal device, wireless transmission method, base station device, and channel estimation method
The present invention adopts a configuration such that when cooperative reception by a plurality of base stations is not applied, a reference signal sequence determined from a selection baseline value corresponding to the number of a sequence group allocated to a cell belonging to the device in question is selected from among a plurality of selection baseline values as a reference signal sequence for non-cooperative reception, whereas when cooperative reception by a plurality of base stations is applied, a reference signal sequence determined from one or more intermediate selection baseline values set between two adjacent selection baseline values corresponding to the number of a sequence group allocated individually to a terminal device is selected among the plurality of selection baseline values as a reference signal sequence for cooperative reception differing from the reference signal sequence for non-cooperative reception.
Data center networks
Measures for routing data packets in a data center network are provided. A packet forwarding function in a server in a data center network is configured to forward data packets to/from virtual systems hosted on that server. The packet forwarding function is configured to make forwarding decisions for received data packets based on the destination internet protocol (IP) address of the received data packet, and forward the data packet at least on the basis of the forwarding decision.
System and method for providing real-time assistance regarding a cloud-based application
A system and method for providing real-time assistance regarding a cloud-based application and an application server incorporating the system or the method. In one embodiment, the system includes: (1) an assistance request receiver operable to receive from a user requesting assistance an assistance request regarding the cloud-based application, (2) a rendered video stream diverter associated with the assistance request receiver and operable to reroute an original rendered video stream associated with the user requesting assistance to a user providing assistance and (3) a modification receiver associated with the assistance request receiver and operable to receive from the user providing assistance at least one modification regarding the original rendered video stream, a stream transmitter associated with the modification receiver operable to transmit a modified rendered video stream toward the user requesting assistance that has been modified based on the at least one modification.
Network device configured to track multicast receivers
A first network device adapted for communication with one or more other network devices is configured to originate a first route identifying a tunnel for carrying traffic for a multicast, to originate a second route specifying a leaf information requirement for the multicast but not identifying a tunnel for carrying traffic for the multicast, and to track a plurality of receivers of the multicast based at least in part on leaf information received from the multicast receivers responsive to the specified leaf information requirement of the second route. The first route may comprise an inclusive route having a tunnel attribute that identifies an inclusive tunnel for the multicast and the second route may comprise a selective route having a tunnel attribute configured to indicate that it carries no tunnel information. Multicast traffic can be switched between an inclusive tunnel and a selective tunnel responsive to the multicast receiver tracking.
Communication control device, communication control system and communication control method
A communication control device, includes a terminal information acquisition unit which acquires terminal-related information including communication service information relating to a communication service executed, and network information relating to a network, a selection unit which selects, among a plurality of combinations of networks each of which can be used by each of a plurality of communication services, a combination of networks having a smallest total communication cost to be charged for each of the plurality of communication services in each of the plurality combinations of networks, on the basis of the terminal-related information, and network-related information including communication cost information, and communication bandwidth information, and a network control unit which executes a network control such that the networks used respectively by each of the plurality of communication services are the selected combination of networks.
Content-based encryption keys
Techniques and mechanisms described herein facilitate the encryption of content using content-based encryption keys. According to various embodiments, data stream may include one or more data chunks. A client machine may apply a hash function to a data chunk to determine a fingerprint value. A cryptographic protocol shared with a remote server may be applied to the fingerprint value to determine a data chunk encryption key. The data chunk encryption key may be used to encrypt the data chunk, and the encrypted data chunk may be sent to the remote server for storage.
Distributed proactive password-based secret sharing
Distributed proactive threshold password-based secret sharing schemes are provided. An exemplary method comprises obtaining a difference between updated and prior values of a share for at least one fixed-share party. The updated value comprises a fixed share that is one of a plurality of shares of a secret held by a plurality of parties. A fixed-share party randomly selects a first correction polynomial employed by a polynomial-based secret sharing scheme such that at least one polynomial coefficient corresponding to the fixed-share party is a value that depends on the difference. A non-fixed-share party randomly selects a second correction polynomial such that at least one corresponding polynomial coefficient corresponding to the non-fixed-share party is approximately zero. A polynomial coefficient of the second correction polynomial is obtained from the non-fixed-share party and the fixed share is updated by combining the prior value of the share with the at least one corresponding polynomial coefficient of the first correction polynomial and the polynomial coefficient of the second correction polynomial.
Methods and apparatus for password-based secret sharing schemes
Methods and apparatus are provided for password-based secret sharing. An exemplary method comprises obtaining a secret; obtaining a fixed value from at least one party; setting at least one polynomial coefficient of a polynomial employed by a polynomial-based secret sharing scheme to a value that depends on the fixed value and the secret; and applying the polynomial-based secret sharing scheme to the secret to obtain a plurality of secret shares, wherein the plurality of secret shares comprises at least one fixed share derived from the at least one polynomial coefficient. Another exemplary secret sharing method comprises selecting at least one fixed share of a plurality of shares employed by an additive secret sharing scheme that splits the secret into the plurality of shares needed for reconstruction of the secret, wherein the at least one fixed share depends on the fixed value; and setting at least one masked version of the secret employed by the additive secret sharing scheme, wherein the at least one masked version of the secret depends on the at least one fixed share.
System and method for providing massage related services
A method of providing massage related services comprises providing a massage apparatus, establishing a connection between a terminal device and a server computer, transferring a massage program executable on the massage apparatus from the server computer to the terminal device, establishing a connection between the terminal device and the massage apparatus, and transferring the massage program from the terminal device to the massage apparatus. Once the new massage program is downloaded in the massage apparatus, a graphical user interface displayed by a remote controller of the massage apparatus can be updated with a new icon associated with the new massage program. The new massage program then can be executed either from the remote controller or the terminal device. In some embodiments, a massage apparatus and a system including the massage apparatus are also described.
Receiver, transmitter, communication system, and communication method
According to an embodiment, a receiver is connected to transmitters through photon communication channels and data communication channels to generate identical cryptographic keys to be shared with each transmitter. The receiver includes a sharing unit, a key distilling unit, a data communication controller, and a calculator. The key sharing unit is configured to generate a shared bit string through quantum key distribution with each transmitter via a corresponding photon communication channel. The key distilling unit is configured to generate the cryptographic keys from the respective shared bit strings. The data communication controller is configured to receive from each transmitter first information about a corresponding cryptographic key via a corresponding data communication channel. The calculator is configured to calculate the photon timeslots based on at least the first information. The data communication controller is configured to transmit the photon timeslots to the transmitters.
Resistance to cache timing attacks on block cipher encryption
Technology is generally described for improving resistance to cache timing attacks made on block cipher encryption implementations. In some examples, the technology can include identifying one or more tunable parameters of the block cipher encryption algorithm; creating multiple encryption algorithm implementations by varying one or more of the parameter values; causing a computing system to encrypt data using the implementations; measuring average execution times at the computing system for the implementations subjecting the implementations to a cache timing attack; measuring average execution times at the computing system for the implementations subjected to a cache timing attack; computing a time difference between the average execution times for the implementations when not subjected and when subjected to a cache timing attack; selecting an implementation having a lower time difference; and using the selected implementation for a subsequent encryption operation.
Wireless phased array receiver using low resolution analog-to-digital converters
A wireless receiver is disclosed. The wireless receiver includes a phased array antenna panel having a plurality of antennas, and a low resolution analog-to-digital (A/D) converter coupled to each of the plurality of antennas, where the low resolution A/D converter is configured to provide a digital output based on comparing a reference value with a sum of noise value and signal value of an analog input received by the corresponding one of the plurality of antennas. Noise signals received by the plurality of antennas are uncorrelated, and a signal to noise ratio (SNR) of the analog input can be less than one. The low resolution A/D converter can be a one-bit A/D converter. The one-bit A/D converter can be a comparator receiving the sum of noise value and signal value as one comparator input, and receiving the reference value as another comparator input.
Modeling a clock
Methods, systems, and computer readable media for modeling a clock are disclosed. According to one exemplary method, the method occurs at a monitoring module associated with a first node. The method includes receiving packets from a second node, extracting timestamps from at least two of the packets, and generating, using the timestamps, clock related information for generating a local clock model indicative of a precision of a local clock at the first node relative to a clock at the second node.
Digital processor having instruction set with complex angle function
A digital processor, such as a vector processor or a scalar processor, is provided having an instruction set with a complex angle function. A complex angle is evaluated for an input value, x, by obtaining one or more complex angle software instructions having the input value, x, as an input; in response to at least one of the complex angle software instructions, performing the following steps: invoking at least one complex angle functional unit that implements the one or more complex angle software instructions to apply the complex angle function to the input value, x; and generating an output corresponding to the complex angle of the input value, x, using one or more multipliers of a Multiply Accumulate (MAC) unit of the digital processor, wherein the complex angle software instruction is part of an instruction set of the digital signal processor. Multiplication operations optionally employ one or more multipliers of the MAC unit of the digital processor.
Method and apparatus for transmitting uplink signals in wireless communication system
The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and an apparatus for a terminal transmitting ACK/NACK information in a carrier aggregation-based wireless communication system, comprising the steps of: receiving one or more PDCCH signals from a specific SF section in an FDD cell; receiving one or more PDSCH signals indicated by the one or more PDCCH signals; and transmitting ACK/NACK information corresponding to the one or more PDSCH signals through a physical uplink control channel (PUCCH), wherein the specific SF section includes one or more first SFs and one second SF, wherein PUCCH transmission is limited in one or more first UL SFs corresponding to the one or more first SFs, wherein PUCCH transmission is allowed from a second UL SF corresponding to the second SF, the ACK/NACK information is transmitted from the second UL SF by using a PUCCH resource allocated by an upper layer when a PDSCH signal exists in the one or more first SFs, and wherein the ACK/NACK information is transmitted from the second UL SF by using a PUCCH resource linked to an index of a resource from which a corresponding PDCCH signal is transmitted when one PDSCH signal exists only in the second SF.
Apparatus and method for resource allocation
Apparatus and method for resource allocation are provided. An apparatus includes a controller which is configured to utilize a tree structure with more than one branch in the resource allocation of physical resource blocks, each branch including one or more legal starting positions for resource allocation. Each starting position is associated with a cluster of physical resource blocks, the number of starting positions being different on each branch. The size of the resource clusters of each branch is different. The controller is configured to denote each resource cluster with a predefined index, and allocate one or more clusters to user equipment uplink connection.
Method, apparatus and system for feeding back early stop decoding
A method, apparatus and system for feeding back early stop decoding are provided. The method includes: a terminal side adjusting encoded TFCI bits, and sending the adjusted TFCI bits to a NodeB side via a TFCI domain of an uplink DPCCH (S302); after sending the adjusted TFCI bits to the NodeB side, the terminal side performing a decoding operation on a downlink DPCH, and feeding back, via an idle TFCI domain of the uplink DPCCH, a decoding result to the NodeB side (304). By applying the technical solution, at least one of the problems in the related art that a NodeB cannot obtain a TFCI in time and a terminal side cannot feed back a downlink decoding result in time during early stop decoding can be solved.
Downlink channel decoding method, downlink information transmission method, user equipment, and base station
The present invention provides a downlink channel decoding method, a downlink information transmission method, a user equipment, and a base station. The downlink channel decoding method includes: determining, by a user equipment, a resource unit occupied by a DMRS; and decoding a downlink channel based on the DMRS transmitted on the resource unit. The present invention can enable different DMRS patterns to concurrently exist on an NCT carrier. In a downlink transmission process, a DMRS pattern used for downlink transmission is determined according to priorities of different channels and/or signals, which can ensure optimal performance of a high-priority channel and/or signal, and can further improve downlink transmission performance.
Transmitting apparatus, receiving apparatus, and controlling method thereof
A transmitting apparatus includes a symbol generator configured to generate a preamble symbol including signaling data and a reference signal, a frequency allocator configured to allocate first subcarriers and second subcarriers to the signaling data and the reference signal, respectively, in a frequency corresponding to the preamble symbol and map the signaling data and the reference signal to the allocated subcarriers, and a transmitter configured to transmit a signal including the preamble symbol and a data symbol, wherein the reference signal is a signal used for channel estimation or frequency offset compensation. Thus, synchronization is accurately corrected and channel estimation is achieved using the reference signal included in the preamble symbol, thereby reducing a ratio of a pilot included in a data symbol.
Method and apparatus for interleaving sequence elements of an OFDMA synchronization channel
A method and apparatus is provided for transmitting an orthogonal frequency domain multiple access (OFDMA) signal including a synchronization channel signal transmitted including a plurality of sequence elements interleaved in time and frequency. The synchronization channel signal sequence elements enable an initial acquisition and cell search method with low computational load by providing predetermined time domain symmetry for common sequence elements in OFDMA symbol periods for OFDMA symbol timing detection and frequency error detection in an OFDMA system supporting multiple system bandwidths, both synchronized and un-synchronized systems, a large cell index and an OFDMA symbol structure with both short and long cyclic prefix length.
Transmitting and a receiving device and respective methods performed thereby for improving retransmissions in wireless networks
A wireless receiving device and a method for receiving a transmission from a transmitting device following a broadcast transmission of a plurality of packets are provided. During the broadcast transmission, packets successfully received have been acknowledged and stored in a memory associated with the receiving device and unsuccessfully received packets have been negatively acknowledged. The method comprises receiving a retransmission of a packet from the transmitting device and sending, to the transmitting device, an acknowledge, ACK, message with respect to the received retransmitted packet. The method further comprises decoding the received retransmitted packet using stored previously successfully decoded packets, wherein if the received retransmitted packet is successfully decoded then the method comprises decoding stored previously partially decoded packets using the successfully decoded packet. The method also comprises storing the successfully decoded packet and/or the partially decoded packet.
Coding scheme and multiframe transmission in optical networks
An optical frame is received over an optical link within an optical network. The optical frame contains a payload of aggregated data, an alignment value, and a bit interleaved parity value. The content of the optical frame is aligned based on the alignment value. The bit interleaved parity value is monitored. In response to the monitoring, a transmission quality of the transmission link is determined.
Rate indication and link adaptation for variable data rates in long range wireless networks
A method of fast link adaptation for Bluetooth long-range wireless networks is provided. A data packet comprises a preamble, a first packet portion including a rate indication field, and a second packet portion including a PDU. The first packet portion is encoded using a first modulation and coding scheme with a first rate while the second packet portion is encoded using a second modulation and coding scheme with a second rate indicated by the RI field. A transmitter thus can use different MCS options to support variable data rates by adapting to channel conditions, and then uses the novel RI field to indicate the data rate to a receiver dynamically. As a result, fast link adaptation can be achieved for different applications with different rate requirements, to provide higher data rate, reduce connection time, lower power consumption, and improve link quality.
Method and communication control device for establishing a communication channel in a communication network
The invention relates to a method for establishing a communication channel, preferably an embedded control channel, between a central network node and at least one network unit to be integrated in a communication network including the central network node and an arbitrary but limited number of network units. The central network node is adapted to create and output a wavelength-division multiplex (WDM) downstream signal including downstream channel signals to be transmitted to the network units and to receive a WDM upstream signal including upstream channel signals created by the network units.
Optical transmission device and optical transmission system
An optical transmission device includes a reception unit that receives a first signal light and a second signal light, the first and second lights having power levels that respectively correspond to transmission distances and being transmitted; an amplification unit that amplifies the first signal light and the second signal light in accordance with a signal light having a high power level from among the received first signal light and second signal light; and a transmission unit that performs transmission of the amplified first signal light and second signal light.
Algebraic generators of sequences for communication signals
A device for modulating communication signals comprises a transceiver for receiving and transmitting the signal, a storage medium storing computer implemented programme code components to generate sequences and a processor in communication with the storage medium and transceiver. The processor executes computer implemented programme code components to generate a family of shift sequences or arrays using exponential, logarithmic or index functions and a polynomial or a rational function polynomial in iεp−1 for a finite field p of prime p. Multiple columns of the arrays are substituted with pseudo-noise sequences or other suitable good correlation sequences in a cyclic shift equal to the shift sequence for the respective column to generate a substituted array. The substituted array, or a sequence unfolded using the CRT from the array when the array dimensions are relatively prime, is applied to a carrier wave of the communication signal to generate a modulated communication signal.
Method for identifying mobile cell causing interference in wireless communication system and device therefor
A method for identifying a mobile cell causing interference by a terminal connected to a first mobile cell, according to one embodiment of the present invention, comprises the steps of: acquiring system information of a fixed base station to which the first mobile cell is connected through a backhaul interface; acquiring a physical cell identifier of a second mobile cell neighboring the first mobile cell by a cell search; determining whether the second mobile cell causes interference to the first mobile cell on the basis of the physical cell identifier of the second mobile cell and the system information of the fixed base station; and reporting the physical cell identifier of the second mobile cell to the first mobile cell if the interference to the first mobile cell is determined to be caused by the second mobile cell.
Method for cancelling a data transmission of a neighboring cell
A method of interference cancellation is proposed. A serving base station transmits a first configuration information to a UE, the first configuration information is related to a desired signal of a data transmission from a serving cell to the UE. The serving base station determines a second configuration information related to an interference signal of a data transmission from a neighboring cell to the UE. The second configuration information comprises a resource allocation type and a basic resource allocation unit of the interference signal. The serving base station transmits the second configuration information to the UE such that the UE can cancel the data transmission from the neighboring cell.
Method and apparatus for forming and processing data units
The invention relates to data networks, and in particular relates to a method and apparatus for forming and processing data units to enable the transfer of clock quality information in data networks. A method of forming a higher order data unit, comprising payload data and overhead data, from a plurality of lower order data units, is disclosed. The payload of the higher order data unit is formed by combining the plurality of lower order data units. The overhead data of the higher order data unit includes clock quality information relating to clocks associated with the plurality of lower order data units. Embodiments provide a way of transporting clock quality information relating to clocks associated with a number of lower order data units within a single higher order data unit, and enables intermediate networks easily to access the clock quality information.
Time correction method and apparatus for slave clock device
Provided are a time correction method and a time correction apparatus for a slave clock device. The method is applied to a slave clock device, wherein the method includes: acquiring background traffic information, in a running process, of the slave clock device; acquiring a deviation correction value according to the background traffic information and a fitted function reflecting delay on an asymmetric link; and correcting a synchronization time, which is output from the slave clock device, in real time according to the deviation correction value. With the above technical solution, the technical problem in related art that there is no technical solution for effectively eliminating a dynamic delay change of an asymmetric link due to a background traffic change is solved, thereby greatly reducing the impact of the traffic change on the asymmetric link delay.
Mitigation of interference between wireless networks
A system and method for minimizing or preventing interference between wireless networks is disclosed. A network hub broadcasts a beacon signal within repeating beacon periods. The position of the beacon signal shifts within each beacon period based upon a predetermined pseudo-random sequence. The beacon signal includes data identifying the current beacon shift sequence and the current phase of the sequence. Neighboring hubs independently or jointly determine and broadcast their own beacon shift sequences and phases for their respective networks from a predetermined list. Nodes connected with the network hubs are assigned allocation intervals having a start time that is set relative to the beacon signal. The start time and duration of the allocation interval wraps around the beacon period if the allocation-interval would otherwise start or continue in a next beacon period.
Method and system for generating and transmitting terahertz
A method and a system for generating terahertz signals, the system comprising a pump source, a two-wire waveguide; and at least one terahertz source, wherein the terahertz source is embedded within the two-wire waveguide and the pump source is configured to illuminate the terahertz source, the terahertz source generating terahertz signals directly within the two-wire waveguide. A terahertz source, embedded within a two-wire waveguide, said source being configured to be illuminated within the two-wire waveguide with a pump source for generating terahertz signals directly inside the two-wire waveguide. A two-wire waveguide system is thus provided, comprising a two-wire waveguide and a terahertz source embedded between the wires of the two-wire waveguide and configured to be illuminated within the two-wire waveguide with a pump source for generating terahertz signals directly inside the two-wire waveguide.
Providing digital data services as electrical signals and radio-frequency (RF) communications over optical fiber in distributed communications systems, and related components and methods
Distributed communications systems providing and supporting radio frequency (RF) communication services and digital data services, and related components and methods are disclosed. The RF communication services can be distributed over optical fiber to client devices, such as remote units for example. Power can also be distributed over electrical medium that is provided to distribute digital data services, if desired, to provide power to remote communications devices and/or client devices coupled to the remote communications devices for operation. In this manner, as an example, the same electrical medium used to transport digital data signals in the distributed antenna system can also be employed to provide power to the remote communications devices and/or client devices coupled to the remote communications devices. Power may be injected and switched from two or more power sources over selected electrical medium to distribute power for power-consuming components supporting RF communications services and digital data services.
Method and system for photonic interposer
Methods and systems for a photonic interposer are disclosed and may include receiving one or more continuous wave (CW) optical signals in a silicon photonic interposer from an external optical source, either from an optical source assembly or from optical fibers coupled to the silicon photonic interposer. A modulated optical signal may be generated by processing the received CW optical signals based on a first electrical signal received from the electronics die. A second electrical signal may be generated in the silicon photonic interposer based on the generated modulated optical signals, and may then be communicated to the electronics die via copper pillars. Optical signals may be communicated into and/or out of the silicon photonic interposer utilizing grating couplers. The electronics die may comprise one or more of: a processor core, a switch core, memory, or a router.
Method of equalizing an optical transmission signal
Proposed is a method of equalizing an optical signal that has an overall bandwidth formed on a number of adjacent spectral slots, wherein the signal comprises a set of non-overlapping subcarrier signals. A distribution of the subcarrier signals onto the slots is such, that at least one slot is occupied by more than one subcarrier signal. The signal is received and amplified. Respective power levels are measured for the subcarrier signals. Distribution data is provided, which indicates the distribution of the subcarrier signals onto the spectral slots. Power level data is provided, which indicates for the spectral slots respective desired power levels. For the spectral slots respective attenuation values are derived, using the measured power levels, the distribution data and the power level data. Finally, the optical transmission signal is attenuated within the spectral slots individually, using the derived attenuation values.
Multimode elliptical core optical data transmission
Methods and system for transmitting data includes converting multiple optical beams to distinct respective spatial modes. Data is modulated onto each of the optical beams. The optical beams are combined into a single transmission beam. The transmission beam is launched onto a multimode optical fiber having an elliptical core.
Method for communicating in a magnetic resonance apparatus and magnetic resonance apparatus operating therewith
In a method for communicating between a first communication device of a magnetic resonance apparatus and a second communication device, in particular one that is mobile and on the patient side, of the magnetic resonance apparatus, a communication technology using visible light is used as the transmission medium for transmission of a useful signal from at least one of the communication devices to the other communication device, in particular from the first communication device to the second communication device.
Automatic RF antenna switching for an electronic communication device
A device includes (a) a plurality of radio frequency (RF) switches, each operable with a plurality of frequency bands; an RF coupling device; and a processor programmed to selectively control operation of the plurality of RF switches based on an uplink signal from an electronic communication device electromagnetically coupled with the RF coupling device. The processor is programmed to selectively control operation of the plurality of RF switches by causing each of the RF switches to lock on a particular frequency band of the plurality of frequency bands corresponding to a frequency of the uplink signal from the electronic communication device.
Method and apparatus for reporting channel state information in wireless communication system
The present invention relates to a wireless communication system and, more specifically, to a method and apparatus for reporting channel state information (CSI). According to one embodiment of the present invention, the method by which a terminal of the wireless communication system reports the CSI comprises: a step of receiving a reference signal from a base station; and reporting the CSI generated using the reference signal to the base station. The CSI can include a report type indicator (RTI) for indicating whether a second domain pre-coding matrix indicator (PMI) indicating a second pre-coding matrix for a second domain is reported in a two-dimensional antenna structure defined by a first domain and the second domain is reported.
Hierarchically elaborated phased-array antenna modules and faster beam steering method of operation
An apparatus substantially updates all the phase shifter values of a phased array antenna by using “global write” to update these parameters to all phased-array transformation circuits simultaneously via a serial bus. Antenna elements, each controlled by a phased-array transformation circuit, are individually configured to transform phase and gain according to a register array. The register array has a local register group and a central register group, the local registers physically placed close in proximity to RF chains which each correspond to an element of array antenna, whereby each set of local registers control an individual antenna element and a central register controlling overall beam steering function. The apparatus is configured to efficiently elaborate phase shift weights into a submodule of a phase array antenna system with low noise and bandwidth.
Reducing location-dependent interference in distributed antenna systems operating in multiple-input, multiple-output (MIMO) configuration, and related components, systems, and methods
Components, systems, and methods for reducing location-based interference in distributed antenna systems operating in multiple-input, multiple-output (MIMO) configuration are disclosed. Interference is defined as issues with received MIMO communications signals that can cause a MIMO algorithm to not be able to solve a channel matrix for MIMO communications signals received by MIMO receivers in client devices. These issues may be caused by lack of spatial (i.e., phase) separation in the received MIMO communications signals. Thus, to provide phase separation of received MIMO communication signals, multiple MIMO transmitters are each configured to employ multiple transmitter antennas, which are each configured to transmit in different polarization states. In certain embodiments, one of the MIMO communications signals is phase shifted in one of the polarization states to provide phase separation between received MIMO communication signals. In other embodiments, multiple transmitter antennas in a MIMO transmitter can be offset to provide phase separation.
Phantom mode datastream transmission
A system may concurrently transport datastreams over the common, differential and phantom modes of pair conductor media. The system may implement the phantom mode transport using the differential of multiple common modes. In multiple conductor pair implementations, multiple phantom modes may share a single return signal route. In some implementations, usage of common modes and phantom modes may be paired with schemes to increase signal robustness.
Data transmission using an electrical machine
A battery pack includes an electrical energy store, a data memory and an interface for the alternative connection of the battery pack to a data source or a data sink. The data memory is designed to receive data from the data source while the interface is connected to the data source, and to supply the data in the data memory to the data sink while the interface is connected to the data sink.
Adaptive echo cancellation for RFID systems
A radio-frequency identification (RFID) reader having fast-adaptive echo cancellation for backscatter-modulated signals is described. The echo cancellation includes subtracting an RF-level cancel signal from the received signal, where the cancel signal is generated based upon an error measured in the receive signal after down-conversion to baseband and low-pass filtering. The cancel signal is based upon a cumulative sum or integral of error signals and an estimated complex-valued transfer function of the scaling circuit. Methods of quick calibration of the reader are described, including accounting for circuit offsets and determining the estimated complex-valued transfer function.
Signal conditioner for bi-directional radio frequency signals in a telecommunications network
A signal conditioning device for conditioning bi-directional radiofrequency (RF) signals in a telecommunications network are provided. The signal conditioning device can allow for the separate conditioning of both downstream and upstream signals in a telecommunication system using a single signal conditioning device disposed at a single location. The signal conditioning device can include first and second line connections and can divide a bi-directional communication signal into downstream and upstream signals. The signal conditioning device can independently condition the downstream and upstream signals using plug-in signal conditioning circuits received into external plug-in sockets.
Multi network radio with shared transmitter
A multi-network transceiver includes two or more receiver modules for simultaneously monitoring traffic broadcast on different networks, but a shared transmitter that switches between the different networks as needed for transmitting data. The shared transmitter reduces the circuitry that would otherwise be required to transmit on multiple networks while the multiple receiver modules preserve the ability to monitor traffic on multiple networks.
Enhanced multi-band multi-feed antennas and a wireless communication apparatus
In one example, a multi-band multi-feed antenna comprises a first conductive end portion having a first antenna feed point located in a substantially middle area of the first conductive end portion; a second conductive end portion having a second antenna feed point located in a substantially middle area of the second conductive end portion; a conductive middle portion configured between the first and second conductive end portions; a first lower ground member at a first corner area of the first conductive end portion, configured to interconnect the first conductive end portion and a ground plane of the conductive middle portion; and a second upper ground member at a second corner area of the second conductive end portion, configured to interconnect the second conductive end portion and the ground plane. The first lower ground member and the second upper ground member are configured at substantially diagonally opposite positions.
Moisture resistant mobile phone case
A phone case made of durable, high grade plastic, aluminum, or similar material in the form of a base and door is disclosed. The door is attached to the base with either an elongate hinge or first and second pins mounted in the base and about which the door pivots from an open to a closed position and back again. The base is designed to receive and seat the phone snugly therein, and is preferably shaped to enclose the phone in a substantially rigid and compact housing that conforms with the shape of the phone. The door preferably pivots from the lower portion of the base about the hinge, and a latching mechanism is positioned at the top of the base's opening to capture and secure the door when closed. The tolerances of the fit between the door and the base are such that moisture will not seep into the case when the door is closed.
Playback of visual or audio content related to a captured image
A wireless communication system includes a storage apparatus and a computing device. The storage apparatus includes a connector, a wireless antenna, a nonvolatile first memory having stored therein visual or audio content, a communication controller powered from an induction current generated when a wireless signal is received through the wireless antenna, and a controller powered using the power supplied from the electronic apparatus through the connector. The controller retrieves the visual or audio content from the first memory based on content ID transmitted wirelessly from the computing device and transmits the retrieved visual or audio content to the electronic apparatus for playback by the electronic apparatus. The computing device includes an image capturing unit, extracts feature values from the data of the captured image, and transmits the wireless signal containing the content ID to the storage apparatus, the content ID being determined from the extracted feature values.
Signal processing method and apparatus
A signal processing method and apparatus are disclosed. The signal processing method includes: receiving, by a first signal processing apparatus, a mixed signal; acquiring, by the first signal processing apparatus, an energy strength ratio of the mixed signal, where the energy strength ratio includes a ratio of energy strength of a signal sent by a first signal source and received by the first signal processing apparatus to energy strength of a signal sent by a second signal source and received by the first signal processing apparatus; and if the energy strength ratio is less than a first preset threshold, using, by the first signal processing apparatus, the signal sent by the second signal source in the mixed signal as an interference signal and separating the interference signal, and determining that a mixed signal obtained after the separation processing is the desired signal sent by the first signal source.
Digital predistortion linearization for power amplifiers
A cellular radio architecture that includes an RF transmitter having a digital signal processor, a digital-to-analog converter (DAC) module that converts digital bits from the processor to an analog signal, a tunable bandpass filter that removes frequencies in the analog signal outside of a frequency band of interest, and a power amplifier that amplifies the filtered analog signal. The architecture also includes a calibration feedback device that receives the amplified analog signal and provides a feedback signal to the processor for calibrating the digital signal to provide amplified amplifier pre-distortion. The processor employs a noise-shaping operation to shape the analog signal from the DAC to remove quantization noise in an immediate vicinity of the signal to improve signal-to-noise ratio, performs an infinite impulse response process to lower a noise floor in the analog signal, and provides pre-distortion of the digital signal to compensate for non-linearties of the power amplifier.
Transmitter circuit, semiconductor apparatus and data transmission method
The transmitter circuit according to one embodiment includes a pulse generating circuit generating a pulse signal based on edges of input data, a first output driver outputting, based on the pulse signal, a first output pulse signal according to one of the edges to a first end of an external insulating coupling element, a second output driver outputting, based on the pulse signal, a second output pulse signal according to other one of the edges to a second end of the insulating coupling element, and an output stop circuit stopping the first and second output pulse signals from being output for a prescribed period from when a power supply voltage is turned on.
Over-the-air loopback for array identification
Certain aspects relate to methods and apparatus for identifying which antenna module is attached to a baseband module port at runtime. For example, an apparatus includes a first radio frequency (RF) module that generates first RF signals based on first intermediate frequency (IF) signals corresponding to a known sequence, and outputs the first RF signals for transmission via a first antenna element, a second RF module that obtains the first RF signals via a second antenna element and processes the first RF signals to generate second IF signals, and a baseband module having first and second ports and generates the first IF signals, to determine which port of the first or second RF modules is coupled to, based on at least one of the first or second IF signals, and to configure at least one of the first or second RF module, according to known configurations, based on the determination.
High-throughput compression of data
A mechanism is provided for high-throughput compression of data. Responsive to receiving an indication of a match of a current 4-byte sequence from an incoming data stream to stored hash values in a set of hash tables, numerous variables are set to initial values. Responsive to receiving a subsequent 4-byte sequence from the incoming data stream and determining that an active match variable is set to one, the subsequent 4-byte sequence is compared to data in a copy of the incoming data stream in memory at an active position with a predefined length offset. A constraint variable is set to a number of bytes for which the match is to be extended. Responsive to the constraint variable being below a predetermined number, a length, distance pair is output indicating a match to a previous pattern in the incoming data stream.
Apparatus and method of self-healing data converters
A self-healing data converter system including a data converter; a parametric function module coupled to the data converter to receive a target performance requirement for a data converter and produce a set of function values to the data converter; an assistant module that captures data converter performance under one or more stress conditions; and a processing module coupled to the data converter to stress the data converter in accordance with one or more predetermined parameters and based on the target performance requirement and data converter performance, the processing module determines new parameters based on a self-healing method and applies the new parameters to produce a new set of function values for the data converter until a predetermined threshold is met to adaptively self-heal the data converter to changed conditions.
Sub-ranging SAR analog-to-digital converter with meta-stability detection and correction circuitry
A sub-ranging SAR ADC has a coarse flash ADC that generates bit values corresponding to MSBs of the digital output value, and a fine SAR ADC that generates bit values corresponding to LSBs of the digital output value. The fine ADC generates successive analog approximation signals for the analog input signal. Meta-stability (MTS) detection circuitry detects a coarse-ADC MTS condition in the coarse ADC if a magnitude of a difference between a current approximation signal and a previous approximation signal is greater than a specified threshold level. A controller controls operations of the sub-ranging ADC to correct for a detected coarse-ADC MTS condition. The MTS detection circuitry includes a positive MTS detector that detects a positive coarse-ADC MTS condition in the coarse ADC and a negative MTS detector that detects a negative coarse-ADC MTS condition in the coarse ADC.
Spread spectrum clock generator, electronic apparatus, and spread spectrum clock generation method
A spread spectrum clock generator includes a phase comparator that compares a reference clock with a feedback clock, a low-pass filter that passes a predetermined low-frequency component, a phase lock loop that includes a voltage-controlled oscillator generating an output clock whose frequency corresponds to the filtered signal, a triangular wave controller that generates a triangular wave signal for frequency-modulating the spread spectrum clock based on the output clock, a delay controller that generates the feedback clock by controlling delay of the output clock based on the triangular wave signal, a first counter that counts the output clock and output a first count value, a second counter that counts the reference clock and output a second count value, and a phase error correction circuit that compares the first count value with the second count value and corrects phase error of the output clock.
Clock signal and supply voltage variation tracking
Embodiments disclosed herein provide an apparatus comprising a clock generation circuit configured to generate a first signal for a first time period and a second signal for a second time period, a charge pump circuit coupled to the clock generation circuit and configured to generate a first voltage and a second voltage based, at least in part, on the first time period and the second time period, and a comparison circuit coupled to the charge pump circuit, the comparison circuit configured to compare a difference between the first voltage and the second voltage with a threshold value and generate an active tracking enablement signal in response to determining that the difference between the first and second voltages exceeds the threshold value.
PLC high speed counter and operating method thereof
Disclosed herein are a PLC high speed counter and an operating method thereof. The PLC high speed counter includes: an input circuit configured to convert and output a high-speed pulse train input from an encoder into a CMOS level; a micro processor unit configured to receive the pulse train from the input circuit, generate a count value by counting the pulse train in a linear count manner and calculate a current ring count value based on the count value; and a buffer configured to receive the count value from the micro processor unit and store the same as a current linear count value, wherein, when a current value request is received from an external device, the micro processor unit determines an operation mode and transmits, if the operation mode is a ring counter mode, the current ring count value.
Apparatus for high voltage tolerant driver
Described is an apparatus which comprises: a first power supply; a second power supply lower than the first power supply; first and second transistors coupled in series and to be biased, the first and second transistors coupled to a pad; a first pull-up transistor coupled to the first power supply and to one of the first or second transistors; a pull-down transistor coupled to one of the first or second transistors; and a second pull-up transistor coupled to the second power supply, the pull-down transistor, and to one of the first or second transistors.
Capacitive sensitive key structure
A capacitive sensitive key structure includes a key, support component, fixing pad, substrate and conductive portion. The key includes a key body and a connection wall which encloses a receiving space. The support component is disposed in the receiving space and includes a body, conical wall, buffering space, and extending pad connected to the conical wall. The body abuts against the key body. The conductive portion is disposed at the bottom of the body and inside the buffering space. The substrate is connected to the fixing pad and has thereon a circuit unit and a sensing layer. The substrate is coated with an insulating layer which covers the sensing layer. When the key body is pressed to press against the support component, electrostatic changes occur because of changes in the distance between the conductive portion and the sensing layer; hence, the circuit unit sends electrical signals for driving electronic apparatuses.
Control unit for controlling electrical apparatus
A control unit for controlling electrical apparatus. The control unit has (i) a control device which may be wall-mounted; (ii) an actuation plate which may be secured to the control device and comprises a cover surface which is at least partially transparent; (iii) a sensor member for detecting when a user's finger or another body comes into contact with a touch zone; and (iv) a control designed to control the electrical apparatus according to a specific function following detection of the contact action. The control device comprises a switching device associated with the touch zone through the control in such a way that the actuation of the switching device controls the electrical apparatus according to the same function associated with the touch zone.
Sampling circuit and sampling method
A sampling circuit for sampling an input voltage and generating an output voltage, comprising six switches, a capacitor and a voltage buffer. The first switch has a control terminal and makes the output voltage equal to the input voltage when switching on. The second switch is coupled to a first terminal of the capacitor and a first level. The third switch is coupled to a second terminal of the capacitor and a second level. The fourth switch is coupled to the first terminal of the capacitor and the control terminal. The fifth switch is coupled to the control terminal and the second level. The voltage buffer has large input impedance, and has an input receiving the input voltage, an output providing a voltage equal or close to the input voltage. The sixth switch is coupled to the second terminal of the capacitor and the output of the voltage buffer.
Gate driver that drives with a sequence of gate resistances
A gate driver integrated circuit for driving a gate of an IGBT or MOSFET receives an input signal. In response to a rising edge of the input signal, the integrated circuit causes the gate to be driven in a first sequence of time periods. In each period, the gate is driven high (pulled up) via a corresponding one of a plurality of different effective gate resistances. In response to a falling edge of the input signal, the integrated circuit causes the gate to be driven in a second sequence of time periods. In each period, the gate is driven low (pulled down) via a corresponding one of the different effective gate resistances. In one example, the duration of each time period is set by a corresponding external passive circuit component. The different effective gate resistances are set by external gate resistors disposed between the integrated circuit and the gate.
Embedded buffer circuit compensation scheme for integrated circuits
Some embodiments include apparatus and methods using a package substrate and a die coupled to the package substrate. The package substrate includes conductive contacts, conductive paths coupled to the conductive contacts, and a resistor embedded in the package substrate. The die includes buffer circuits and a calibration module coupled to the buffer circuits and the resistor. The buffer circuits include output nodes coupled to the conductive contacts through the conductive paths. The calibration module is configured to perform a calibration operation to adjust resistances of the buffer circuits based on a value of a voltage at a terminal of the resistor during the calibration operation.
Precision frequency monitor
A precision frequency monitor provides a precision frequency monitor value (PFM) indicative of the precision of the frequency or period of an input reference signal. A first averaging module is responsive to the input reference signal to find an average frequency or period during successive predetermined time periods defining operational cycles. A second averaging module is responsive to an output of the first averaging module to average the output of the first averaging module over N operational cycles, where N is an integer, and output an updated PFM value every N operational cycles. An infinite impulse response (IIR) filter is responsive to the output of the first averaging module to filter the output of the first averaging module to output interim updated PFM values within each sequence of N operational cycles.
Tunable diplexers in three-dimensional (3D) integrated circuits (IC) (3DIC) and related components and methods
Tunable diplexers in three-dimensional (3D) integrated circuits (IC) (3DIC) are disclosed. In one embodiment, the tunable diplexer may be formed by providing one of either a varactor or a variable inductor in the diplexer. The variable nature of the varactor or the variable inductor allows a notch in the diplexer to be tuned so as to select a band stop to eliminate harmonics at a desired frequency as well as control the cutoff frequency of the pass band. By stacking the elements of the diplexer into three dimensions, space is conserved and a variety of varactors and inductors are able to be used.
Resistor attenuator with switch distortion cancellation
A programmable (multistep) resistor attenuator architecture (such as for input to a differential amplifier) provides cancellation for harmonic distortion currents. An attenuation node is coupled: (a) to an input node through R; (b) to a virtual ground through kR and a virtual ground switch Swf with on-resistance Rswf; and (c) to a differential ground through mR and a differential ground switch Swp with on-resistance Rswp. Swp can be sized relative to Swf such that a component Ipnf of Ipn through Rswp and mR to the attenuation node, and branching into kR and Rswf, matches (phase/magnitude), a harmonic current Ifn from the virtual ground through Rswf and kR to the attenuation node. Harmonic distortion cancelation at the virtual ground can be based on matching switches Swf and Swp and the resistors R, mR, kR, reducing sensitivity to PVT variations, input frequency and amplitude. The attenuator architecture is extendable to multistage configurations.
A multiband ducker is configured to duck a specific range of frequencies within a music signal in proportion to a corresponding range of frequencies within a speech signal, and then combine the ducked music signal with the speech signal for output to a user. In doing so, the multiband ducker separates the music signal into different frequency ranges, which may include low, middle, and high-range frequencies. The multiband ducker then reduces the amplitude of the specific range of frequencies found in the speech signal, typically the mid-range frequencies. When the ducked music signal and the speech signal are combined, the resultant signal includes important frequencies of the original music signal, including low-range and high-range, thereby allowing perception of the music signal to continue in relatively uninterrupted fashion. Additionally, the combined signal also includes the speech signal, allowing for the perception of intelligible speech concordant with the perception of music.
Method and apparatus for automatic gain control
The embodiments disclose a method and apparatus for automatic gain control. The apparatus comprises a first gain controlled element, a second gain controlled element, a first gain control device, a second gain control device and a first simulator. The first gain controlled element and the second gain controlled element each has a signal input, a gain control input and a signal output. The first gain controlled element and the second gain controlled element are coupled in series and one or more power elements coupled between the first gain controlled element and the second gain controlled element. The signal input of the first gain controlled element constitutes an input of the automatic gain control apparatus. The first gain control device has a pre-detection input which is coupled to the signal input of the first gain controlled element and an output which drives the gain control input of the first gain controlled element. The second gain control device has a pre-detection input and an output which drives the gain control input of the second gain controlled element. The first simulator is coupled between the signal input of the first gain controlled element and the pre-detection input of the second gain control device, which is used to simulate frequency response of the one or more power elements between the first gain controlled element and the second gain controlled element, such that a signal received by the pre-detection input of the second gain control device is matched with a signal received by the signal input of the second gain controlled element.
Gain enhancement using advanced correlated level shifting
Systems and methods disclosed herein provide for enhancing the low frequency (DC) gain of an operational amplifier with multiple correlated level shifting capacitors. In an embodiment, the operational amplifier is level shifted with a first correlated level shifting capacitor in a first phase and, then, is level shifted again with at least a second correlated level shifting capacitor in at least a second, non-overlapping, consecutive phase. In an embodiment, the multiple correlated level capacitors are controlled by a switching circuit network.
System and method for inductor isolation
An inductor isolation apparatus and method to reduce interaction between inductors on an integrated circuit.
Differential amplifier linearization in a radio frequency system
A linearization circuit reduces intermodulation distortion in a differential amplifier that includes a first stage and a second stage. The linearization circuit receives a first signal that includes a first frequency and a second frequency and generates a difference signal having a frequency approximately equal to the difference of the first frequency and the second frequency, generates an envelope signal based at least in part on a power level of the first signal, and adjusts a magnitude of the difference signal based on the envelope signal. When the differential amplifier receives the first signal at an input terminal, the first stage receives the adjusted signal, and the second stage does not receive the adjusted signal, intermodulation between the adjusted signal and the first signal cancels at least a portion of the intermodulation between the first frequency and the second frequency from the output of the differential amplifier.
an amplifier amplifies electrical power of signals. A calculating unit calculates a cumulative value for each of first samples and second samples, between which a difference in electrical power or phase is within a first range, in a first sample group and a second sample group corresponding to a first signal that is a signal before amplification in the amplifier and a second signal that is a signal after amplification in the amplifier. Then, the calculating unit calculates, by using the calculated cumulative value, a phase difference between the first signal and the second signal. The correction unit corrects the phase difference by using a correction amount calculated from the phase difference. The updating unit updates, by using the first signal and the second signal of which the phase difference is corrected, a distortion compensation coefficient that is used to compensate nonlinear distortion generated in the amplifier.
Depleted silicon-on-insulator capacitive MOSFET for analog microcircuits
Dual gate FD-SOI transistors are used as MOSFET capacitors to replace passive well capacitors in analog microcircuits. Use of the dual gate FD-SOI devices helps to reduce unstable oscillations and improve circuit performance. A thick buried oxide layer within the substrate of an FD-SOI transistor forms a capacitive dielectric that can sustain high operating voltages in the range of 1.2 V-3.3 V, above the transistor threshold voltage. A secondary gate in the FD-SOI transistor is used to create a channel from the back side so that even when the bias voltage on the first gate is small, the effective capacitance remains higher. The capacitance of the buried oxide layer is further utilized as a decoupling capacitor between supply and ground. In one example, a dual gate PMOS FD-SOI transistor is coupled to an operational amplifier and a high voltage output driver to produce a precision-controlled voltage reference generator. In another example, two dual gate PMOS and one dual gate NMOS FD-SOI transistor are coupled to a charge pump, a phase frequency detector, and a current-controlled oscillator to produce a high-performance phase locked loop circuit in which the decoupling capacitor footprint is smaller, in comparison to the conventional usage of passive well capacitance.
Dynamically setting a threshold output level for a solar array
A method and apparatus for managing a solar array. Light is measured using a threshold sensor to generate sensor data. A selected threshold is computed for an electrical output generated by a plurality of solar cells in the solar array based on the sensor data using control logic in a control module.
Panel, panel assembly and associated roofing
A panel has a profile with width L1 comprising a first longitudinal edge comprising in succession a first longitudinal rib comprising a top center part having a height H4 and width L4 and two lateral wings that extend from the top center part on either side and downward, then a first flange having a width L3 oriented in a plane P, the two lateral wings forming an angle α with the plane P, at least one projecting part in the extension of the first flange. An upper plateau having a height H7 and width L7 and two lateral webs extending from the upper plateau on either side and downward, forming an angle β with the plane P, a second longitudinal edge in the extension of one of the projecting parts comprising in succession a second flange having a width L9 oriented in the plane P and a second longitudinal rib comprising a top center part having a height H11 and width L11 and two lateral wings extending from the top center part on either side and downward forming an angle γ with the plane P. The first and second ribs have shapes that allow their respective overlapping, where L7/L4≧5, L7/L11≧5, H7/H4≧0.4, H7≧((H4×(ab−be)−L3×abe)/(ae+ab)), H7≧((H11×(cb−be)−L9×cbe)/(ce+cb)), where a=tan α, b=tan β, c=tan γ and e=tan 20°.
Rail-less roof mounting clamp assembly
A rail-less roof mounting system for installing photovoltaic (PV) modules on a roof structure comprises a base mount assembly that engages with a clamp assembly and attaches to the roof structure. The base mount assembly comprises a base member having a waterproof means, a block slider, a top slider and a covering means. An elevated seal portion of a block slider includes a borehole to receive the waterproof means. A vertical engaging portion of the block slider is attached with a sliding seal member of the top slider. The clamp assembly includes a clamp member and a plate member and the clamp member is attached with a track of the top slider. The clamp member interlocks the PV modules to provide a corner-to-corner coupling arrangement, which enables the connection of PV module corners to adjacent PV module corners by sandwiching above and beneath frame members of the PV modules.
Stator resistance estimation for electric motors
A method of controlling an electric motor (motor) includes providing a processor having an associated memory storing a stator resistance (Rs) estimation (RSE) algorithm that is programmed to implement the RSE algorithm to execute steps including injecting a current waveform at an arbitrary frame of reference into the stator using a field-oriented-control (FOC) motor controller including an Id controller and an Iq controller, and measuring current and voltage values from the motor responsive to the injecting. The measured current and voltage values are then transformed into transformed current and voltage values in a d/q coordinate system. The transformed current and voltage values are low pass filtered to generate filtered d/q current and voltage values, and a value for Rs is estimated from the filtered d/q current and voltage values. The arbitrary frame of reference can be a time-varying frame of reference.
Systems and methods concerning exciterless synchronous machines
A synchronous machine and related systems include a stator and rotor separated by an air gap. The rotor includes a rotating DC power supply coupled to exciter windings disposed adjacent the air gap. Power from air gap harmonics, including air gap slot harmonics induce current in the exciter windings, which is rectified and supplied to the rotor field windings. In operation, a desired current level in the rotor field windings can be achieved through control of the DC power supply or superposition of harmonics into the stator winding current which induces the prescribed current in exciter windings.
Apparatus with a main control unit, a control unit and an electromechanical device and a method for operating such an apparatus
The invention relates to an apparatus comprising an electromechanical device, a control unit, a main control unit and a motion detector, wherein said control unit is configured to control said electromechanical device. The invention also relates to a method for operating an apparatus with a main control unit, a control unit and an electromechanical device. The technical problem of providing an apparatus with an electromechanical device, the reliability of which is improved, is solved by an apparatus wherein the main control unit is configured to provide information to the control unit. The motion detector and the main control unit are configured such that information about the movement of the electromechanical device is provided by the motion detector at least to the main control unit. The technical problem is also solved by a method for operating an apparatus, in particular an apparatus or medical device according to the invention.
Method for controlling inverter
In some embodiments, an inverter control apparatus and a method for controlling the same are provided. The inverter control apparatus may speed up the discharging of the residual energy at an inverter driven with an input power when a safety signal is input to the inverter. The inverter control apparatus may include an input power switchgear supplying an input power to the inverter according to switching operation; an I/O unit inputting a safety signal to the inverter according to a user control input and outputting a failure output relay signal to the input power switchgear when the safety signal is generated; and a controller performing speeding up the discharge of residual energy at the inverter when the input power is interrupted.
Piezoelectric power generator using wind power
A piezoelectric power generator using wind power is provided. To elaborate, the piezoelectric power generator has a central axis unit with a charger, a piezoelectric film supporting frame engaged onto an outer circumference surface of the central axis unit, and a piezoelectric film having a pre-set area and at least one side engaged to at least one of one side part of the piezoelectric supporting frame and the central axis unit. In addition, the piezoelectric film supporting frame has a shape corresponding to a shape of an edge of the piezoelectric film to surround the edge of the piezoelectric film.
Power conversion system
In a power conversion system in which one or more converter cells are connected in series to form an arm for each phase, a control device includes a voltage command generating unit for generating a positive arm voltage command and a negative arm voltage command for each phase. The voltage command generating unit includes an AC current control unit, a circulating current control unit, and a command distributing unit. On the basis of inputted voltage commands, the command distributing unit subtracts voltage drop portions due to inductance values in the arms from respective voltages assigned as outputs of the positive arm and the negative arm, to distribute voltage components, thereby determining the positive arm voltage command and the negative arm voltage command.
Isolated power transfer device
An isolated power transfer device includes a transformer formed in a multi-layer substrate of an integrated circuit package. A primary winding of the transformer is coupled to a first integrated circuit to form a DC/AC power converter and a secondary winding of the transformer is coupled to a second integrated circuit to form an AC/DC power converter. The first and second integrated circuits are electrically isolated from each other. The first integrated circuit includes a lightly doped drain MOSFET integrated with conventional CMOS devices and the second integrated circuit includes a Schottky diode integrated with conventional CMOS devices. The isolated power transfer device includes a capacitive channel for communication of information across an isolation barrier from the second integrated circuit to the first integrated circuit. Capacitors of the capacitive channel may be formed in the multi-layer substrate of the integrated circuit package.
Solar power conditioning unit
The present invention relates to a power conditioning unit for delivering power from a dc power source to an ac output, particularly ac voltages greater than 50 volts, either for connecting directly to a grid utility supply, or for powering mains devices independent from the mains utility supply. We describe a power conditioning unit for delivering power from a dc power source to an ac mains output, the power conditioning unit comprising an input for receiving power from said dc power source, an output for delivering ac power, an energy storage capacitor, a dc-to-dc converter having an input connection coupled to said input and an output connection coupled to the energy storage capacitor, and a dc-to-ac converter having an input connection coupled to said energy storage capacitor and an output connection coupled to said output, wherein said energy storage capacitor has a capacitance of less than twenty microfarads.
Synchronous rectifier circuit
A first variable voltage source VS1 generates a first threshold voltage VZC1 which is variable. A first zero current detection comparator ZC_CMP1 compares a first voltage VAC1 at a first input node AC1 with the first threshold voltage VZC1, and generates a ZC_DET1 signal which indicates a comparison result. A first adjustment comparator ADJ_CMP1 compares the first voltage VAC1 with a first reference voltage VTH1. A first adjustment unit adjusts the first threshold voltage VZC1 generated by the first variable voltage source VS1, based on the output VF_DET1 of the first adjustment comparator ADJ_CMP1. A control logic switches the state of a bridge circuit according to at least the first detection signal ZC_DET1.
Method in, apparatus for, and interface arrangement between an alternating current power system and a direct current power system
A method and apparatuses for handling delayed zero crossing in fault current through a circuit breaker are disclosed. An interface arrangement is configured to couple an alternating current, AC, power system with a direct current, DC, power system, or vice versa. The interface arrangement includes at least one converter for conversion of AC power to DC power, or vice versa, which includes a DC side for coupling of the converter to the DC power system and an AC side for coupling of the converter to the AC power system. A circuit breaker is arranged in a current path between the AC side of the at least one converter and the AC power system. There may be a risk of delayed zero crossing in fault current occurring in case a fault occurs in a predefined portion of the interface arrangement. If a fault is sensed to occur in the interface arrangement within the predefined portion of the interface arrangement, opening of contacts of the circuit breaker can be delayed by a selected delay time period, compared to if the fault would have been within a portion of the interface arrangement different from the predefined portion.
Variable coil configuration system, apparatus and method
One or more variable configuration controller (VCC) systems may produce various combinations of series or parallel couplings of coils, winding or inductive elements of an electric machine such as a generator and/or electric motor. The VCC systems include a plurality of bridge rectifiers, and a first number of switches operated to selectively couple respective pairs of coils in series from parallel on an AC side of the bridge rectifiers. The bridge rectifiers provide for automatic electrical isolation of coils on occurrence of open circuit, low voltage or short circuit conditions. A second number of switches with different performance characteristics (e.g., speed, loss) than the first number of switches may be coupled in parallel with respective ones of the first number of switches. Power factor correction may be used.
Estimation of transformer leakage inductance and associated delay in voltage converters
A time delay through a voltage converter, including a transformer therein, must be known or estimated in order to optimally control the voltage converter. For example, power switches that control the input power to the voltage converter must use this time delay in order to, e.g., achieve zero-voltage switching (ZVS) with minimal dead-time. The time delays are typically considered as constants, and the power switch control is optimized for a limited operational range that corresponds to such constant time delays. Herein, variable time delays are determined based upon varying load conditions of the voltage converter. By more accurately determining the time delay for a given load condition and basing the voltage converter control on such accurate (load-dependent) time delays, the voltage converter may be more optimally controlled and achieve higher efficiency.
Resonant converters with an improved voltage regulation range
A method comprises determining an operating mode based upon an input voltage and an output voltage of a resonant converter, wherein the resonant converter comprises a switch network coupled to an input dc power source, a resonant tank coupled to the switch network and a transformer coupled between the resonant tank and a secondary rectifier, wherein the secondary rectifier is a full-bridge rectifier, configuring the switch network to operate at a buck converter mode in response to a first input voltage and configuring the secondary rectifier to operate at a boost converter mode in response to a second input voltage, wherein the first voltage is higher than the output voltage and the second voltage is lower than the output voltage.
Control of a startup circuit using a feedback pin of a PWM controller integrated circuit chip
A power supply includes a control transistor that controls a primary winding of a transformer to induce current on a secondary winding of the transformer to generate an output voltage. A pulse width modulation (PWM) controller integrated circuit (IC) chip drives the control transistor through a gate pin. The PWM controller IC chip has a feedback pin that receives a feedback signal indicative of the output voltage. A high voltage (HV) startup transistor is controlled through the feedback pin. The HV startup transistor turns ON during startup to generate a supply voltage from current received from the input voltage of the power supply. The HV startup transistor turns OFF when the supply voltage reaches a startup voltage level that is sufficient to start the switching operation of the control transistor and thereby receive operating current from an auxiliary winding of the transformer.
Resonant inverter and isolated resonant power supply device
A resonant inverter includes an input terminal, a first switch, a second switch, a transformer, a first resonant circuit, and a second resonant circuit. To the input terminal, an input voltage is applied. The first switch and the second switch are alternately turned on and off. The transformer includes a first winding and a second winding on a primary side. The first resonant circuit includes a first capacitive element and a first coil. The second resonant circuit includes a second capacitive element and a second coil. The first switch, the first winding, and the first resonant circuit constitute a first inverter circuit. The second switch, the second winding, and the second resonant circuit constitute a second inverter circuit. The input terminal is connected between the first winding and the second winding.
Method and apparatus for a control circuit with multiple operating modes
A method for controlling a power converter switch to regulate power delivered to an output of a power converter includes operating the power converter switch in first, second, and third duty cycle control modes in response to a feedback signal. The first duty cycle control mode includes modulating a peak switch current of the power converter switch in response to the feedback signal, and switching the power converter switch at a substantially fixed first switching frequency value. The second duty cycle control mode includes modulating the switching frequency in response to the feedback signal, and maintaining the peak switch current substantially at a peak switch current threshold value. The third duty cycle control mode includes modulating the peak switch current of the power converter switch in response to the feedback signal, and switching the power converter switch at a substantially fixed second switching frequency value.
Transformer flux estimation and limiting in isolated DC-DC voltage converters
A switching voltage converter using an isolated topology includes a transformer for coupling power from an input source to an output load. The transformer must be protected to prevent saturation of its core due to excessive magnetic flux density as the transformer transfers power from its primary side to its secondary side. The magnetic flux is estimated using a voltage measured on the primary or secondary side of the transformer, wherein the secondary-side voltage may be a rectified voltage. If the estimated magnetic flux is detected as approaching a saturation level of the transformer core, any power being input to the transformer is curtailed. This may be accomplished by modifying pulse-width modulated (PWM) waveforms controlling power switches that control the input power transferred to the transformer. Using these techniques, transformer saturation may be avoided without requiring a significantly oversized transformer within the voltage converter.
Systems and methods for constant current control with primary-side sensing and regulation in various operation modes
System and method for regulating a power converter. The system includes a first signal processing component configured to receive at least a sensed signal and generate a first signal. The sensed signal is associated with a primary current flowing through a primary winding coupled to a secondary winding for a power converter. Additionally, the system includes a second signal processing component configured to generate a second signal, an integrator component configured to receive the first signal and the second signal and generate a third signal, and a comparator configured to process information associated with the third signal and the sensed signal and generate a comparison signal based on at least information associated with the third signal and the sensed signal.
A chopper circuit includes a controller that performs control of turning on a second switching device when a short circuit detector detects a short circuit of a first diode, and performs control of turning on a first switching device when the short circuit detector detects a short circuit of a second diode.
Low input voltage boost converter with peak inductor current control and offset compensated zero detection
The low input voltage boost converter with peak inductor current control and offset compensated zero detection provide a boost converter scheme to harvest energy from sources with small output voltages. Some embodiments described herein includes a thermoelectric boost converter that combines an IPEAK control scheme with offset compensation and duty cycled comparators to enable energy harvesting from TEG inputs as low as 5 mV to 10 mV, and the peak inductor current is independent to first order of the input voltage and output voltage. A control circuit can be configured to sample the input voltage (VIN) and then generate a pulse with a duration inversely proportional to VIN so as to control the boost converter switches such that a substantially constant peak inductor current is generated.
Direct current conversion device and operation method of the same
A DC conversion device including a first DC converter and a second DC converter connected in series, a voltage difference adjusting unit, and a first and a second control unit is provided. The first and the second DC converter respectively receive a first and a second input current to generate a first output current and a first output voltage, a second output current and a second output voltage at a first and a second output end connected to a first and a second energy-storing element, respectively. The voltage difference adjusting unit generates a voltage difference adjusting signal. The first control unit generates a first control signal to control the first converter. The second control unit generates a second control signal according to the voltage difference adjusting signal to control the second converter to balance the first and the second input and output voltages.
Methods and apparatus for a low standby current DC-DC power controller with improved transient response
Methods and apparatus for DC-DC power controller with low standby current and fast transient response. In an example arrangement, an apparatus includes a voltage converter outputting a direct current output voltage, configured to increase the output voltage responsive to an enable control signal; at least one feedback comparator configured to output a first control signal, the feedback comparator being active responsive to an edge at a clock signal input; an adjustable frequency oscillator for outputting a first clock signal; and a fast transient detect circuit configured to output a second signal asynchronously upon detecting a rapid change greater than a voltage threshold in the output voltage; the voltage converter receiving the enable control signal when either the first clock signal is active, or the second signal is active and the output voltage is less than a reference voltage. Additional apparatus and methods are disclosed.
Artificial ripple modulation control circuitry
A power supply system has a power switch circuit that switches an input voltage to generate a switched input voltage, an output circuit that generates an output voltage from the switched input voltage, and a pulse width modulation (PWM) controller that generates a PWM signal to control the power switch circuit. The PWM controller turns OFF the PWM signal based on a ramp signal that emulates a current of an output inductor and a feedback signal that indicates an error between the output voltage and a reference voltage.
Method for limiting the starting current of a step-up-converter
The disclosure relates to a method for limiting the starting current of a step-up-converter that is supplied by a DC voltage source. The step-up converter has a first capacitor, a coil connected in parallel to the first capacitor, a second capacitor connected to the coil in series, and a switch connected to the second capacitor in parallel and connected to the coil in series. In a first step, an output voltage of the circuit is measured and the step-up converter is connected to the DC voltage source by closing a power switch that is connected in series to the first capacitor. In a second step, the power switch is opened upon the output voltage increasing by more than a predefined threshold and is maintained open for a predefined time. The first and second steps are repeated until the output voltage reaches a predefined final value.
Secure converter-gating, reconfiguration, and regulation
Dynamic power management techniques and voltage converter architectures are described to provide a secure and efficient on-chip power delivery system. In aspects of the embodiments, converter-gating adaptively turns on and off individual stages of an interleaved switched-capacitor voltage converter based on workload information to improve voltage conversion efficiency. Converter-gating is further utilized as a countermeasure against side channel power analysis attacks by pseudo-randomly controlling converter activity. The embodiments also improve the response time of converters during transient load changes by adaptively configuring the conversion ratio of a switched capacitor (SC) voltage converter.
Enhanced transient response to supply power from energy harvesters
Systems and methods may provide for a transient response apparatus that includes a single stage conversion module having a power input, a power output, and a control input, and a compensation module including a feedback input. The compensation module may be coupled to the power input, the power output and the control input of the single stage conversion module. Additionally, a feedback module may be coupled to the power output of the single stage conversion module and the feedback input of the compensation module. In one example, the feedback module includes a loop controller having a plurality of programmable inputs and an error output, and a modulus unit coupled to the error output of the loop controller and the feedback input of the compensation module.
PFC control circuit, digital PFC circuit and the method thereof
A digital PFC circuit with improved power factor is described. The digital PFC circuit uses a compensation current generating unit and a reference current adjust unit to eliminate the effect of a current flowing through an input capacitor to the input current, so that the input current and the input line voltage of the digital PFC circuit are controlled to be in-phase.
A discharge device includes a switch element connected in parallel to an electrical storage element; a constant current output unit which supplies a constant current to the switch element; and a control unit which gives an on or off instruction to the constant current output unit, wherein a configuration is such that the control unit controls the constant current output unit so as to cause energy with which is charged in the electrical storage element to be discharged while being consumed by the switch element, and within an optional time for which an energization current of the switch element reaches a limiting current of the switch element, turn off the switch element in a region in which the energization current is lower than the limiting current.
Resonant load power conversion device and time division operation method for resonant load power conversion device
A resonant load power conversion apparatus is provided to lower a switching frequency of each switching device and to reduce the number of main circuit conductors. The conversion apparatus includes a single-phase inverter having a dc input side (Vdc) connected with a dc voltage source and an output side (Vout) connected with a resonant load and outputting a rectangular wave voltage with a resonance frequency. Upper and lower arms on the input side and output side of the single-phase inverter are connected, respective, with switch group circuits 100U, 100V, 100V and 100V each of which includes N series combinations (N is an integer equal to or greater than 2) of two switching devices, connected in parallel with each other by main circuit conductors. The switching devices of the switch group circuits are controlled in a time division switching control mode with a control section.
Distributed driving system
A step down convertor with a distributed driving system. In one embodiment, an apparatus is disclosed that includes an inductor coupled to an output node. The apparatus also includes first and second circuits. The first circuit can transmit current to the output node via the inductor, and the second can transmit current to the output node via the inductor. The apparatus also includes a third circuit for modifying operational aspects of the first circuit or the second circuit based on a magnitude of current flowing through the inductor.
Offset voltage generator and method for generating an offset voltage of three-phase inverter
In an embodiment, an offset voltage generator includes a first limiter configured to compare a first phase-voltage signal with a maximum limit value and a minimum limit value to output a first limit-voltage signal; a second limiter configured to compare a second phase-voltage signal with the maximum limit value and the minimum limit value to output a second limit-voltage signal; a third limiter configured to compare a third phase-voltage signal with the maximum limit value and the minimum limit value to output a third limit-voltage signal; and a summer configured to add a difference between the first phase-voltage signal and the first limit-voltage signal, a difference between the second phase-voltage signal and the second limit-voltage signal, and a difference between the third phase-voltage signal and the third limit-voltage signal, to output an offset voltage.
Permanent magnet laminated motor with axial spacer ring vents
A permanent magnet laminated motor includes two end plates (15,16) arranged in parallel; a rotating shaft (1) rotatably arranged between the two end plates (15,16); n+1 rotor units (11, 12, 13, 14) and n spacer rings (8, 9, 10) alternately fixedly sleeved on outer rims of the rotating shaft (1) and axially compacted; two magnetic conductive rings (6, 7) tightly sleeved at the outer rim of the rotating shaft (1) and tightly attached to the outer side of the outermost two rotor units (11, 14); and n stator units (37, 38, 39) respectively sleeved at the outer rims of the spacer rings (8, 9, 10). An axial air gap (40) is provided between each stator unit (37, 38, 39) and the adjacent rotor unit (11, 12, 13, 14), and the n stator units (37, 38, 39) are axially fixedly connected to the two end plates (15, 16) by installation screw rods (74, 75).
Closed loop data center and organic life ecosystem
Processing units and electrical power generation are integrated with a botanical environment to form a closed loop system whereby the outputs of one component serve as the inputs of another. Additionally, humans can be added to the system while maintaining the closed loop nature. Heat generated by the electrical power generation and processing units aids in the growth of botanicals and in the conversion of waste organic materials into both fertilizer and fuel for the electrical power generation. Additionally, carbon dioxide output by the electrical power generation is consumed by the botanicals, which, in turn, output oxygen consumed by the electrical power generation. Water is obtained by passing the exhaust of the electrical power generation across condenser coils, and is utilized for adiabatic cooling, as well as a heat transfer medium. Water is also consumed by the botanicals, aiding their growth.
Active magnetic bearing comprising means for damping the radial motion of a shaft of a rotary machine
An active magnetic bearing comprising a plurality of electromagnetic actuators, each actuator receiving for control thereof an input current and being able to exert a radial force on a shaft of a rotary machine, with respect to the rotation axis of said shaft, the shaft being able to be held without contact between the electromagnetic actuators and to undergo radial motion when it is in rotation, means for supplying input current of each actuator, the supply means comprising means for controlling the input current of each actuator, according to the position of the shaft with respect to the actuators. The supply means comprise means for damping the radial motion of the shaft.
Provided is a motor bobbin around which a winding wire is wound, said motor bobbin comprising insulating paper and a resin molded body. The insulating paper and the resin molded body are coupled and fixed together without using an adhesive agent. Surfaces of the insulating paper which are in contact with the resin molded body are configured using aramid paper comprising an aramid fibrid and aramid short fibers. Resin is melt extruded and thermal-fusion bonded upon the aramid paper comprising the aramid fibrid and the aramid short fibers, and the surfaces configured from the aramid paper are surface treated to obtain the insulating paper. The motor bobbin is obtained by bringing melted portions of the resin molded body into contact with the top of the aramid paper.
Rotor for rotary electric machine having through piece holes and ribs
A rotor for a rotary electric machine includes a rotor core being rotatable around a rotational axis. The rotor core includes a plurality of steel plates stacked in a stacking direction. Each of the plurality of steel plates includes a plurality of magnet insertion piece holes, a plurality of through piece holes, a radially inner side annular ring, a radially outer side annular ring, and a plurality of ribs. The plurality of magnet insertion piece holes are provided at every first circumferential space. The plurality of magnet insertion piece holes constitute a plurality of magnet insertion holes in a state in which the plurality of steel plates are stacked in the stacking direction while the plurality of steel plates are rotated by the first circumferential space at every timing at which a predetermined number of the plurality of steel plates are stacked in the stacking direction.
Method and system for wireless battery charging utilizing ultrasonic transducer array based beamforming
An ultrasound power transmitter comprising a transmit ultrasonic transducer array has a plurality of transmit ultrasonic transducers. The ultrasound power transmitter activates a set of transmit ultrasonic transducers in close proximity of an electronic device to be arranged to beam ultrasound energy to the electronic device. Alignment magnets of the ultrasound power transmitter are aligned with corresponding alignment magnets of the electronic device to manage the ultrasound beaming. The ultrasound energy may be converted into electric power to charge the battery of the electronic device. Feedbacks may be provided by the electronic device to the ultrasound power transmitter to increase power transmission efficiency. The ultrasound power transmitter may pair the electronic device with other different electronic devices utilizing ultrasonic signals. A spacer with good ultrasound power transmission properties may be located between the ultrasound power transmitter and an ultrasound power receiver of an intended electronic device to enhance power transmission.
System and method for wireless power transfer using a two half-bridge to one full-bridge switchover
A system and method of wireless power transfer using a two half-bridge to one full-bridge switchover includes a wireless power transfer system. The wireless power transfer system includes a controller, first and second transmitters coupled to the controller, the first and second transmitters being coupled to one another by an electrical connection, and a switch coupled between the electrical connection and a voltage rail. When the switch is closed, the controller operates the first and second transmitters in a two half-bridge mode. When the switch is open, the controller operates the first and second transmitters in a one full-bridge mode.
Wireless electromagnetic receiver and wireless power transfer system
A system and a device for wirelessly transferring power without a cable are provided. A wireless electromagnetic receiver includes a first device configured to be magnetized based on an electromagnetic field. The wireless electromagnetic receiver further includes a second device configured to transform the magnetization of the first device into a power, the second device being not in contact with the first device.
Switching systems and methods for use in uninterruptible power supplies
An uninterruptible power supply for providing an output power signal to a load has a ferroresonant transformer, a resonant capacitor operatively connected to the ferroresonant transformer, and an inverter operatively connected to the ferroresonant transformer. The inverter is configured to generate the output power signal based on at least one inverter control signal such that the output power signal is a quasi square wave having a first change of phase, an upper limit, and a second change of phase. The at least one inverter control signal is pulse-width modulated between the first change of phase and the upper limit, pulse-width modulated between the upper limit and the second change of phase, and held in an ON state when the output power signal is at the upper limit.
Apparatus, system, and method for providing power redundancy to a device designed to draw power from a single external power adapter
An apparatus may include a plurality of power inputs configured to receive direct current from a plurality of external power adapters that convert alternating current to direct current. The plurality of external power adapters may include a primary external power adapter and at least one backup external power adapter. The apparatus may also include a power output configured to provide direct current to a device. In addition, the apparatus may include a switching mechanism that, when the primary external power adapter is operational, supplies direct current from the primary external power adapter to the power output and, when the primary external power adapter fails, supplies direct current from the backup external power adapter to the power output. Various additional apparatuses, systems, and methods are also disclosed.
Portable solar power station
A portable solar power station is disclosed herein. The power station is contained and configured with sufficient power to support a plurality of industrial devices and appliances. The devices and appliances can be utilized for a variety of professional and recreational activities. The power station is easily transported because it can fit, e.g., into a truck's bed or a van's cargo area and is not so heavy, e.g., that a person of mild to average strength would have difficulty pushing, lifting or otherwise moving the power station.
Electrochemical cell or battery with reduced impedance and method for producing same
The invention disclosed is a method for decreasing the internal resistance or impedance of a battery or electrochemical cell is described which comprises the step of discharging the battery or cell until it reaches an overdischarge condition and maintaining the battery or cell in the overdischarge condition for a period of time sufficient to effect a diminution of the internal resistance or impedance of a battery or electrochemical cell; and a battery or electrochemical cell having a reduced impedance.
Battery intelligent management method, battery intelligent management apparatus, and battery
The present invention discloses a battery intelligent management apparatus. A recognizing unit is configured to recognize a specification of a power supply assembly. A storage unit is configured to store management modes of power supply assemblies of various specifications, where the management modes of the power supply assemblies are in one-to-one correspondence with the specifications of the power supply assemblies. A control unit is configured to extract, from the storage unit and according to the specification, recognized by the recognizing unit, of the power supply assembly, a management mode corresponding to the specification of the power supply assembly, and perform charge management on the power supply assembly by using the management mode.
Internet device and automatic switching method, apparatus and circuit for charging interface of internet device
An internet device and an automatic switching method, apparatus and circuit for a charging interface of an internet device are disclosed. The device includes a device charging interface (20), a dock charging interface (30), a charging loop (40) and an automatic switching apparatus (10) for a charging interface. The method includes: when external power supply is connected into the device (S001), judging whether a dock charging interface a the device is in place (S002), if so, isolating a device charging interface of the device and at the same time, connecting a charging loop of the device through a dock charging interface of the device (S003); otherwise, isolating the dock charging loop of the device and at the same time, connecting the charging loop of the device through the device charging interface of the device (S004). The device is convenient to implement and has the advantages of reliable performance and low cost.
Hand tool device having at least one charging coil
In a hand tool device having at least one charging coil provided for transmitting energy, the charging coil includes a coil core having at least two core segments which are movable relative to each other.
Dynamic current redistribution for portable electronic devices
Systems, methods, and computer-readable media are disclosed for dynamic current redistribution. Example methods may include determining that a power source is in communication with a first battery, determining that a second battery is in communication with the first battery, and charging the first battery at a first charging current value. Example methods may include charging the second battery at a second charging current value, determining that an input voltage from the power source is equal to or greater than a voltage threshold, and charging the second battery at a third charging current value that is higher than the second charging current value.
Method for synchronizing a feed voltage with a network voltage
In a method for synchronizing a feed voltage with a network voltage of an electrical energy supply network, a property of the feed voltage can be determined on the basis of a static characteristic curve. The static characteristic curve is compared to the property of the feed voltage of a feed power received by the electrical energy supply network at the applied feed voltage. The property of the feed voltage is adjusted to a specified value when a limit current of the feed power is reached.
Rapid shutdown and safety disconnect for hybrid PV systems
Embodiments of the present disclosure describe an energy generation system including a rapid shutdown mechanism configured to prevent a flow of power from a photovoltaic (PV) array when activated, a battery pack comprising one or more power storage devices, and an inverter coupled to the rapid shutdown mechanism and the battery pack. The inverter includes anti-islanding relays configured to electrically disconnect the inverter from a utility grid when activated transfer relays configured to electrically disconnect the inverter from a load when activated, and a detection and initiation circuit coupled to the rapid shutdown mechanism, battery pack, anti-islanding relays, and transfer relays, where the detection and initiation circuit is configured to detect a triggering event and to activate the rapid shutdown mechanism, disable the battery pack, activate the anti-islanding relays, and activate the transfer relays in response to the detection of the triggering event.
Electrical network of an aircraft
An electrical network of an aircraft comprises: several main generators, several high voltage direct current networks powered by one of the generators in normal operation, several low voltage direct current networks powered by one of the high voltage direct current networks, several converters to transfer energy from one of the high voltage direct current networks to one of the low voltage direct current networks, the different converters being independent and isolated from each other, each converter being dedicated to one of the high voltage networks and to the low voltage direct current network, a load designed to be powered in normal operation by the main generators and in backup operation by one of the low voltage direct current networks, the backup operation being put into place when at least one of the high voltage networks is no longer powered by the associated main generator in normal operation.
Short-circuit protection method and device for a half-bridge resonant converter
Provided are a short-circuit protection method and device for a half-bridge resonance converter. The method includes: a secondary-side current signal of the half-bridge resonance converter is detected, and the detected secondary-side current signal is converted into a corresponding first sampling voltage signal; whether a cycle-by-cycle protection is required in accordance with the first sampling voltage signal is determined; and a driving signal of the half-bridge resonance converter is compulsorily blocked during a preset cycle, if the cycle-by-cycle protection is required. Short-circuit protection may be performed for the half-bridge resonance converter, meanwhile a power density of the half-bridge resonance converter is satisfied.
Grommet and method for manufacturing same
A grommet is secured to a wire harness inserted in an opening of a panel. The grommet is fitted in the opening and mounted, thereby supporting the wire harness in the panel, The grommet has: partition walls covering the periphery of the wire harness and forming a sound-blocking space around the wire harness; and a sound-insulating wall formed inside the sound-blocking space so as to intersect the longitudinal direction of the wire harness.
Method and apparatus for performing optical imaging using frequency-domain interferometry
Exemplary apparatus and method are provided. In particular, an electromagnetic radiation can be emitted with, e.g. a light source arrangement. For example, the light source arrangement can include a cavity and a filter, and a spectrum of the electromagnetic radiation can be controlled, e.g., with such cavity and filter, to have a mean frequency that changes (i) at an absolute rate that is greater than about 100 terahertz per millisecond, and (ii) over a range that is greater than about 10 terahertz. Additionally or alternatively, the light source arrangement can include a frequency shifting device which can shift the mean frequency of the electromagnetic radiation.
Fast wavelength-tunable hybrid optical transmitter
An optical transmitter includes: a set of reflective semiconductor optical amplifiers (RSOAs) or other reflective gain media, a set of ring filters, a set of intermediate waveguides, a shared waveguide, a shared loop mirror, and an output waveguide. Each intermediate waveguide channels light from an RSOA in proximity to an associated ring filter to cause optically coupled light to circulate in the associated ring filter. The shared waveguide is coupled to the shared loop mirror, and is located in proximity to the set of ring filters, so that light circulating in each ring filter causes optically coupled light to flow in the shared waveguide. Each RSOA forms a lasing cavity with the shared loop reflector, wherein each lasing cavity has a different wavelength associated with a resonance of its associated ring filter. The output waveguide is optically coupled to the shared loop mirror and includes an electro-optical modulator.
Edge-emitting semiconductor laser and method for the production thereof
An edge-emitting semiconductor laser includes a semiconductor structure having a waveguide layer with an active layer, the waveguide layer extending in a longitudinal direction between first and second side facets of the semiconductor structure, the semiconductor structure has a tapering region adjacent to the first side facet, a thickness of the waveguide layer in the tapering region increases longitudinally, the waveguide layer is arranged between first and second cladding layers, a thickness of the second cladding layer in the tapering region of the semiconductor structure increases longitudinally, the tapering region includes first and second subregions, the first subregion is arranged closer to the first side facet than the second subregion, thickness of the waveguide layer increases longitudinally in the first subregion, thickness of the waveguide layer is constant in the longitudinal direction in the second subregion, and thickness of the second cladding layer increases longitudinally in the second subregion.
Ultrashort pulse fiber amplifier with rare-earth doped gain fibers
Ultrashort pulse fiber amplifier having a pulse width from 200 ps to 200 fs comprising a rare earth oxide doped multicomponent glass fibers for laser amplification, including a core and a cladding, the core comprising at least 2 weight percent glass network modifier selected from BaO, CaO, MgO, ZnO, PbO, K2O, Na2O, Li2O, Y2O3, or combinations; wherein the mode of the core is guided with step index difference between the core and the cladding, a numerical aperture of the fiber is between 0.01 and 0.04; core diameter is from about 60 microns to about 150 microns, and a length of the gain fiber is shorter than 60 cm.
Reversible computation with flux solitons
A reversible superconducting circuit includes a plurality of Josephson transmission lines. A first line is configured to transmit a control fluxon when a first input is active. A second line is configured to transmit a target fluxon to one of a third and a fourth line. The circuit is configured to transmit the fluxons at substantially the same time. The second line is configured to transmit the target fluxon to the third line, due to an interaction between the control fluxon and the target fluxon, only if the control fluxon is transmitted at substantially the same time as the target fluxon. The second line is configured to transmit the target fluxon to the fourth line, due to following an adiabatic trajectory, only if no control fluxon is transmitted at substantially the same time as the target fluxon.
Rotor of rotating electric machine
According to one embodiment, a rotor of a rotating electric machine includes a collector shaft which is fastened to a main shaft of the machine and mounted with paired collector rings on an outer circumferential surface thereof. Longitudinal lead bars extend in electrically insulated state in longitudinal lead grooves provided in an outer circumferential surface of the collector shaft and are connected to ring through studs. Radial lead bars are located at a collector shaft-side end portion of the main shaft and connect at their inner end portions to the bands. And, both ends of conductive longitudinal studs inserted into longitudinal through holes at a main shaft-side end portion of the collector shaft are connected to outer end portions of the radial lead bars and to the longitudinal lead bars.
Connector holder and electronic device with connector holder
A plugging structure applied to an electronic device for detachably electrically connecting to a main unit is disclosed. The electronic device comprises a housing. The plugging structure comprises a cover and a circuit board. The cover plate has two transfer ports, and two transmitting ports are listed in the cover. The circuit board is disposed between the cover and the housing, and the circuit board connects to these transmitting ports.
Wiring connector for two wire to two point connection
A small form factor wiring connector provides a two wire to two point connector with separate-hole insertion for two wires, by having two holes on the first casing side of the connector and a terminal connection on the opposite second side of the connector. The design works well for a pluggable or fixed-mounted connector. The separate wire insertion holes and the internal screw-driven clamping means with U-shaped wire clamp and U-shaped fixed terminal surfaces provides positive connections which will not easily loosen.
An Ethernet device having an Ethernet connector comprising first and second pairs of contacts to carry BaseT Ethernet communication signals wherein at least one of the contacts of the first pair of contacts and at least one of the contacts of the second pair of contacts are configured to conduct at least two different magnitudes of DC current flow without interfering with the BaseT Ethernet communication signals.
Push wire connector having a spring biasing member
An electrical connector includes a housing and a conductive contact assembly disposed in the housing. A first contact member of the contact assembly receives a blade contact of an electrical device. A second contact member receives an electrical wire through a push-in connection. The electrical connector is receivable by an aperture in a rear surface of the electrical device.
Electrical receptacle connector
An electrical receptacle connector includes a mount member received in a metallic shell. A tongue portion is integrally formed with a front end of the mount member. Accordingly, a grounding plate, first receptacle terminals, and second receptacle terminals that are at the front end of the mount member can be positioned. In addition, the front ends of the first receptacle terminals are held in a first surface of the tongue portion, and the front ends of the second receptacle terminals are held in a second surface of the tongue portion. Since the tongue portion and the mount member are formed integrally with each other, the first receptacle terminals, the second receptacle terminals, and the mount member can be firmly positioned with each other. Accordingly, when the connector is impacted by a foreign force, the components of the connector would not detach from each other easily.
Combinatorial light string plug and receptacle
A connector having enhanced protection against arcing during live or “hot” connection of a plug assembly to a receptacle assembly. The terminals of the connector, including the connection point of exposed wiring, are electrically isolated from each other with dielectric barriers built in to the connector, such as polymer partitions. Accordingly, protection against arcing is provided in a connector that is assembled fast and inexpensively, without need for a time consuming installation of wire and terminal coatings or sleeves (e.g., “shrink tube”), and with greater reliability. The connector can be used in a modular system for decorative lighting and having a controller module that is not hard wired to a light string. Use of the controller module independent of any of the light strings enables the controller to be used with any light string or with a replacement light string, in the event that the immediately connected light string fails.
Safety lockout feature for plug
An electrical plug is provided including a plug housing having a hollow interior surrounded by an outer wall, a first plurality of electrical connectors positioned within the hollow interior that are adapted to mate with a second plurality of electrical connectors positioned on a plug housing, a first aperture extending through the outer wall, a locking member extending from within the hollow interior through the first aperture in the outer wall, wherein the locking member includes a retainer that abuts a surface of the outer wall, wherein the locking member includes one a more holes positioned outside of an outer surface of the outer wall, a locking element secured through the one or more holes on the locking member, and wherein the locking member prevents the plug receptacle from being fully engaged with the plug housing.
A waterproof connector includes a housing made of an insulating resin and having a counter connector accommodating section and one or more contacts formed integrally with the housing, the housing having at least one contact adhesion generating recess that is formed in a bottom section of the counter connector accommodating section to communicate with an inside of the counter connector accommodating section and that allows an adhesion force directed to a contact-side fixed section of each of the one or more contacts to be generated at a portion of the housing in contact with the contact-side fixed section by means of water pressure occurring when the inside of the counter connector accommodating section is immersed in water.
A connector assembly has a first connector (10) fit into a receptacle (44A) of a second connector (40). An erroneous connection preventing rib (22) and two fitting ribs (21) are provided on an outer surface of a housing (12) of the first connector (10). The erroneous connection preventing rib (22) can enter a groove (47) on an inner surface of the receptacle (44A) during proper connection of the first and second connectors (10, 40), but collides with the receptacle (44A) during erroneous connection. The fitting ribs (21) fit into fitting grooves (48) on the inner surface of the receptacle (44A) both during the proper connection and during the erroneous connection. The fitting ribs (21) fit into the fitting grooves (48) before the collision of the erroneous connection preventing rib (22) with the receptacle (44A) during the erroneous connection.
A socket includes power-supply blade receivers and a grounding blade receiver for retaining power-supply plug blades and a grounding plug blade of a plug, respectively. Each of the power-supply blade receivers includes a power-supply retaining portion and a power-supply contact portion. The grounding blade receiver includes a grounding retaining portion and a grounding contact portion which is installed further on the upstream side in the insertion direction of the plug than a position which is spaced away from the power-supply contact portion to the downstream side in the insertion direction by less than the certain distance. The grounding retaining portion is spaced away by the certain distance or more from the power-supply retaining portion to the downstream side in the insertion direction.
Near-field gradient probe for the suppression of radio interference
An antenna system is provided comprising first, second, and third loop antennas, each antenna having a respective loop area and spaced apart from the other antennas. The first and third antennas are configured and driven to form a first independent balanced feed point that is substantially isolated from the second antenna, which is configured to be driven from a second balanced feed point. A sum of the first and second respective loop areas, at a sum port in operable communication with the first and second balanced feed points, is substantially equivalent to the third respective loop area. An automatic control system is configured to automatically and independently adjust, via the balanced feed points, at least one of amplitude and phase for at least one of the three loop antennas, to help to substantially maximize suppression of RFI for a sum of signals from the first and second balanced feed points.
Combination of radar sensor and trim component for a motor vehicle
A combination of a radar sensor and a trim component, which are to be mounted on a motor vehicle so that the trim component is penetrated by microwaves of the radar sensor, the trim component including at least one layer, which reflects a portion of the microwaves, the trim component including an additional layer, which is configured based on thickness and dielectric constant to reduce the reflection.
Metamaterial-based transmitarray for multi-beam antenna array assemblies
A transmitarray, or radio frequency lens, can provide a large variation of time-delay. The transmitarray comprises a number of time-delay unit (TDU) cells that each have a capacitive patch and a rectangular wire loop separated by dielectric material. The rectangular wire loop allows current continuity to be maintained between adjacent TDU cells, even when different sized TDUs are included in the transmitarray.
Waveguide slot antenna and warning system using same
Provided is a waveguide tube slot antenna (A), including: a waveguide tube (10) having a transverse section having a rectangular shape in each part of a waveguide (2) in an extending direction thereof; and a plurality of radiating slots (3) arranged in the waveguide tube (10) at predetermined intervals, in which: the waveguide tube (10) includes a first waveguide tube forming member (11) and a second waveguide tube forming member (12) each having the transverse section having a shape with an end, the first waveguide tube forming member (11) and the second waveguide tube forming member (12) being configured to define the waveguide (2) by being coupled to each other; and the first waveguide tube forming member (11) is formed to have a flat shape and includes the plurality of radiating slots (3).
Ceramic patch antenna structure
The invention provides a ceramic patch antenna structure which comprises a composite material base body, a radiation metallic layer, a grounding metallic layer and a signal feeding element. The composite material base body is composed of a high dielectric constant (K) material and a low K material, having a front surface, a rear surface and a through hole. The radiation metallic layer is provided on the front surface of the composite material base body. The grounding metallic layer is provided on the rear surface of the composite material base body. The signal feeding element has a head thereon, the head has a shaft extending from the bottom thereof and the shaft has a projection on a surface thereof. As the signal feeding element is screwed to the through hole, the projection of the shaft destroys an internal wall of the through hole to latch in the through hole.
Modulation patterns for surface scattering antennas
Modulation patterns for surface scattering antennas provide desired antenna pattern attributes such as reduced side lobes and reduced grating lobes.
Load balancing of dual-polarized antennas
There is provided a dual-polarized N/2-column antenna arrangement. The antenna module arrangement comprises a coupler module. The coupler module is arranged to direct a first summation of energy from signals from a first distinct set of power amplifiers of an N-channel radio to a first single output port connected to a first polarization of a first column of the dual-polarized N/2-column antenna arrangement. The coupler module is arranged to direct a second summation of energy from signals from a second distinct set of power amplifiers of the N-channel radio to a second single output port connected to a second polarization of a second column of the dual-polarized N/2-column antenna arrangement.
Large aperture antenna with narrow angle fast beam steering
A system for rapidly steering a directive beam in an antenna is provided herein. The system includes: an antenna configured to produce a directive beam; means for steering the beam rapidly, along small angles; and means for steering the beam slowly, along large angles. According to one embodiment, the antenna is implemented as a phased array antenna, wherein the means for steering the beam rapidly, along small angles, is implemented as a phased array control, and wherein the means for steering the beam slowly, along large angles, is a mechanical mechanism implemented using gimbals. According to another embodiment, the antenna includes a main reflector and a sub reflector, and wherein the means for steering the beam rapidly, along small angles, mechanically controls the sub reflector, and wherein the means for steering the beam slowly, along large angles, mechanically controls the main reflector.
Antenna design for reduced specific absorption rate
An antenna for use in portable wireless devices is described for which SAR is significantly reduced relative to conventional antenna designs for the same transmit power. The antenna includes a primary antenna element and one or more parasitic antenna elements. Each parasitic antenna element is electromagnetically coupled to the primary antenna element so as to spread out the RF energy associated with SAR hotspots.
Antenna device and an adaptor for an antenna device
The antenna device comprises: a magnetic core; one or more windings (W1) wound around the magnetic core; an electrically insulating base (1), on which the magnetic core wound with the one or more windings (W1) is arranged, and which comprises electrically conductive elements (11, 12, 13), which are electrically connected to the one or more one windings (W1); and an adaptor (A) is arranged over the magnetic core and comprising an electrically insulating piece (140) having an upper surface comprising electrically conductive platings (121, 122, 123) following a specific PCB layout and at least part of which are connected to the electrically conductive elements (11, 12, 13) of the electrically insulating base (1). The adaptor is suitable for its use as the adaptor of the antenna device of the present invention.
Antenna integrated with metal chassis
One aspect provides an antenna. The antenna, in this aspect, includes a grounded segment extending from a metal chassis of an electronic device, and a feed portion coplanar with the grounded segment, the grounded segment and feed portion jointly tuned to cause the antenna to communicate in selected bands of frequencies.
Antenna device and communication apparatus
A planar conductor including a cutout that penetrates in a thickness direction and extends from an outer edge portion toward an inner side, a coil antenna magnetically coupling with the planar conductor by a magnetic flux passing through the cutout, and a fit-in member filled into at least a portion of the cutout and including a metal oxide film provided on at least a side surface portion thereof which is in contact with the planar conductor, are included. Thus, an antenna device which does not impair appearance while maintaining strength by using a metal casing, and a communication apparatus including the antenna device, are provided.
Variable angle mount for attaching a mast to a structure
Mounting systems and apparatus are provided for attaching a mast to a structure at a desired orientation. The mounting apparatus includes a base support and a ball mount. The base support can be rigidly attached to a portion of the structure. The ball mount receives a ball associated with the mast to thereby allow the mast to be positioned and maintained at the desired orientation. The mounting apparatus may be used, for example, for attaching a digital broadcast satellite (DBS) antenna to a fascia or other portion of a home or other structure.
Article, integrated device, apparatus and method for mounting a satellite feed structure to an antenna reflector unit
An article, integrated device, apparatus and a method for mounting a satellite antenna feed structure to an antenna reflector unit. The device comprises, in combination, a housing associated with the feed structure and a cup mounted to the antenna reflector unit. The housing includes a plurality of members projecting radially therefrom, the members being arranged and configured for cooperative engagement with slots correspondingly arranged and configured in the cup, a resilient gasket lining at least a bottom interior surface of the cup. Alternatively, the cup includes a plurality of inwardly projecting members arranged and configured for cooperative engagement with slots correspondingly arranged and configured in the housing. Upon positioning the housing axially relative to, and in mating engagement with, the cup, engaging the members with and sliding them into receiving ports of the slots, rotating the housing such that the members engage with and slide along the slots, and thereby biasing a mating portion of the housing against the gasket lining, the housing is engaged firmly within the cup.
An antenna-equipped connector comprising a plug having separate conductive portions and configured to be received by an audio output jack of an electronic device, a jack configured to connect to the conductive portions of the plug via respective of at least two conductive lines, an antenna connection node that branches from a branching point on one of the at least two conductive lines, and an antenna connected to the antenna connection node.
Remote units for distributed communication systems and related installation methods and apparatuses
Remote units are mounted in a support structure so that cooling air flow is not impeded by the support structure. The remote units may have RF communications circuitry and other components that generate heat in the provision of wireless services.
Antenna floor tile for a raised floor system
An antenna floor tile for a raised floor system comprises a frame; an insert supported by the frame, the insert including a top surface; a recess disposed below the top surface; an antenna attached to the insert within the recess; and a protective layer disposed over the antenna.
Plurality of resonator cavities coupled by inductive apertures which are adjusted by capacitive parts
One or more adjustable resonators (208, 209) of a compensation circuit are arranged so that adjusting the resonators nevertheless results in output of the circuit remaining substantially constant. This has been accomplished by separating resonator cavities that include the adjustable resonators by a partition wall. A coupling aperture (205) provides inductive coupling between the resonator cavities and a capacitive part (206) passes through the intermediate wall and provides a capacitive coupling between the resonator cavities. The capacitive part is conductive and electrically isolated from the partition wall. The capacitive part and the coupling aperture are dimensioned such that effects on the coupling band width of the aperture and capacitive couplings track each other so as to substantially cancel each other out, and that the coupling band width between the resonator cavities remains substantially constant.
Twist for connecting orthogonal waveguides in a single housing structure
A twist for coupling radiation between orthogonal waveguides is provided. The twist includes at least three cavities opening from at least one of a first X1-Y1 surface and a second X2-Y2 surface of a metal block. A first cavity has a first opening in a first Y-Z plane and a second opening in a second Y-Z plane offset from the first Y-Z plane by a first length. A second cavity shares the second opening with the first cavity and has a third opening in a third Y-Z plane offset from the second Y-Z plane by a second length and has at least two heights and at least two widths. A last cavity shares a next-to-last opening in a next-to-last Y-Z plane with a next-to-last cavity. The last cavity has a last opening in a last Y-Z plane offset from the next-to-last Y-Z plane by a last length.
Battery state monitoring circuit and battery device
Provided is a battery state monitoring circuit and a battery device capable of predicting a state of charge of a secondary battery with high accuracy. The battery state monitoring circuit includes a pseudo-equivalent circuit of the secondary battery, and causes a current flowing through a sense resistor to flow to the pseudo-equivalent circuit of the secondary battery, to thereby measure a pseudo-open circuit voltage of the secondary battery.
Method of charging and maintaining lithium ion secondary battery, battery system, vehicle and battery-mounted device
An object is to provide a method of charging and maintaining a lithium ion secondary battery which method is capable of preventing a decrease in the capacity of the battery. Another object is to provide a battery system capable of preventing a decrease in battery capacity, and a vehicle and a battery-mounted device which have such a battery system mounted therein. A method of charging and maintaining lithium ion secondary batteries 101 using positive active material particles 135 made from a two-phase coexistence type positive active material PM in a positive electrode plate 130 includes an overcharge step S7 for charging the lithium ion secondary batteries to bring their SOC (State of Charge) SC into an overcharge SOC not higher than 100% but higher than a target SOC, a return discharge step S8 for discharging, after the overcharge step, the lithium ion secondary batteries to make their SOC equal to the target SOC, and a maintaining step S10.
Lithium-selenium secondary batteries having non-flammable electrolyte
A rechargeable lithium-selenium cell comprising a cathode having a cathode active material selected from Se or SexSy (x/y ratio=0.01 to 100), an anode having an anode active material, a porous separator electronically separating the anode and the cathode, a non-flammable quasi-solid electrolyte in contact with the cathode and the anode, wherein the electrolyte contains a lithium salt dissolved in a first organic liquid solvent with a lithium salt concentration sufficiently high (at least 2.0 M, more preferably >3.0 M) so that the electrolyte exhibits a vapor pressure less than 0.01 kPa when measured at 20° C., a flash point at least 20 degrees Celsius higher than the flash point of the first organic liquid solvent alone, a flash point higher than 150° C., or no flash point. This battery cell is non-flammable and safe, has a long cycle life, high capacity, and high energy density.
Dual storage system and method with lithium ion and lead acid battery cells
A battery system may include a plurality of battery cell assemblies electrically coupled in series. A first battery cell assembly of the plurality of battery cell assemblies includes a first lithium ion battery cell and a first lead acid battery cell electrically coupled in parallel with the first lithium ion battery cell such that the first lead acid battery cell is configured to resist overcharging and overdischarging of the first lithium ion battery cell.
Biocompatible wire battery
A rechargeable electrochemical battery in the form of a single or multi-stranded wire assembly may be utilized as a power source for any number of implantable or non-implantable medical devices. As the wire form battery may be scaled to micro size, it may be utilized to power medical devices that were traditionally non-active devices, but which may be enhanced with active components. The wire form battery may be cut to size for a particular application which provides the same open circuit voltage regardless of how the wire is ultimately configured and the length of the wire utilized. Although the battery is in wire form, various arrangements of the components within the battery are also possible.
Fuel cell stack compression devices and methods
A spring compression assembly is configured to apply a load to a stack of electrochemical cells. The assembly includes a ceramic leaf spring, a tensioner configured to apply pressure to a first side of the spring and a bottom plate located on a second side of the spring opposite the first side of the spring. The bottom plate is configured to transfer a load from the spring to the stack of electrochemical cells.
Preventing migration of liquid electrolyte out of a fuel cell
A stack (10) of fuel cells (11) is provided with barriers (32) to prevent migration of a liquid electrolyte (such as phosphoric acid) out of the cells (11). The barrier (32) is secured within a step (34) defined within a land region (28) of a separator plate assembly (18) and extends from an edge (30) of the separator plate assembly (18) all or a portion of a distance between the edge (30) and a flow channel (24) defined within the separator plate assembly (18). The barrier (32) also extends away from the edge (30) a distance of between 0.051 and 2.0 millimeters (2 and 80 mils). The barrier (32) includes a hydrophobic, polymeric film (36), a pressure sensitive adhesive (38), as an assembly aid, and a fluoroelastomer bonding agent (40).
Dual seal anode drain / purge tube
A device and method for improving cathode catalytic heating by allowing independently for a draining of a liquid and a purging of a gas in a fuel cell at cold starts via a system including an anode drain and a cathode catalytic heating system connected by a purge tube, a sump external to the purge tube, and a pintle having a closed position, a first open position, and a second open position.
Humidifier, for example for a fuel cell
A humidifier having at least one water-permeable fabric layer, on the opposite sides of which a gas stream with higher and with lower moisture content is guided along. On the side of the gas stream with higher moisture content, a hydrophilic additional layer is positioned upstream of the fabric layer.
Mixed-reactant fuel cells with selective electrodes
A mixed reactant fuel cell (MRFC) including a MRFC-optimized electrocatalyst utilizing a combination of selective catalysts and selective fuel distributors.
Anode with remarkable stability under conditions of extreme fuel starvation
A solid oxide fuel cell (SOFC) includes a cathode electrode, a solid oxide electrolyte, and an anode electrode having a first region located adjacent to a fuel inlet and a second region located adjacent to a fuel outlet. The anode electrode includes a cermet having a nickel containing phase and a ceramic phase. The first region of the anode electrode contains a lower ratio of the nickel containing phase to the ceramic phase than the second region of the anode electrode.
Rechargeable battery with wafer current collector and assembly method
Apparatus and techniques herein related battery plates. For example, a first battery plate can include a conductive silicon wafer. A first mechanical support can be located on a first side of the conductive silicon wafer. A first active material can be adhered to the first mechanical support and the first side of the conductive silicon wafer, the first active material having a first polarity. In an example, the battery plate can be a bipolar plate, such as having a second mechanical support located on a second side of the conductive silicon wafer opposite the first side, and a second active material adhered to the second mechanical support and the second side of the conductive silicon wafer, the second material having an opposite second polarity.
Carbonaceous material for non-aqueous electrolyte secondary battery anode, non-aqueous electrolyte secondary battery anode, non-aqueous electrolyte secondary battery, and vehicle
To provide a carbonaceous material for a non-aqueous electrolyte secondary battery anode that yields an anode for a non-aqueous electrolyte secondary battery having excellent input/output characteristics, and a non-aqueous electrolyte secondary battery having high discharge capacity per unit volume, and a non-aqueous electrolyte secondary battery and a vehicle comprising this non-aqueous electrolyte secondary battery anode.The carbonaceous material for a non-aqueous electrolyte secondary battery anode of the present invention has a number average particle size of from 0.1 to 2.0 μm, a value of a number average particle size divided by a volume average particle size of not greater than 0.3, an average interlayer spacing d002 of an (002) plane determined by X-ray diffraction of from 0.340 to 0.390 nm, and an atomic ratio (H/C) of hydrogen and carbon of not greater than 0.10.
Cathode active material and lithium secondary battery comprising same
Disclosed is a cathode active material for secondary batteries in which a carboxymethyl cellulose derivative is coated on surfaces of particles of a lithium transition metal oxide having the formula LixMyO2 where M: NiaMnbCoc wherein 0≦a≦0.9, 0≦b≦0.9, 0≦c≦0.5, and 0.85≦a+b+c≦1.05 and x+y=2, wherein 0.95≦x≦1.15.
Carbon-coated lithium iron phosphate of olivine crystal structure and lithium secondary battery using the same
Disclosed is lithium iron phosphate having an olivine crystal structure, wherein the lithium iron phosphate has a composition represented by the following Formula 1 and carbon (C) is coated on the particle surface of the lithium iron phosphate containing a predetermined amount of sulfur (S). Li1+aFe1−xMx(PO4−b)Xb (1) (wherein M, X, a, x, and b are the same as defined in the specification).
Silicon nanostructure active materials for lithium ion batteries and processes, compositions, components and devices related thereto
The present invention relates to nanostructured materials for use in rechargeable energy storage devices such as lithium batteries, particularly rechargeable secondary lithium batteries, or lithium-ion batteries (LIBs). The present invention includes materials, components, and devices, including nanostructured materials for use as battery active materials, and lithium ion battery (LIB) electrodes comprising such nanostructured materials, as well as manufacturing methods related thereto. Exemplary nanostructured materials include silicon-based nanostructures such as silicon nanowires and coated silicon nanowires, nanostructures disposed on substrates comprising active materials or current collectors such as silicon nanowires disposed on graphite particles or copper electrode plates, and LIB anode composites comprising high-capacity active material nanostructures formed on a porous copper and/or graphite powder substrate.
Electrode member and battery block
Collector connected to a terminal of a cell includes: substrate portion made of a conductive plate material; connection portion that is defined by first slit formed in the conductive plate material, and is connected to the terminal of the cell; narrow fuse that is defined by second slits that are formed in the conductive plate material so as to extend from first slit, and whose one end is connected to substrate portion and the other end is connected to connection portion; and insulating film bonded to a region including fuse and second slits defining fuse across substrate portion and connection portion.
Lithium secondary battery having enhanced safety
Disclosed is a secondary battery, wherein an electrode assembly including at least one positive electrode respectively having positive electrode tabs not coated with a positive electrode active material; at least one negative electrode respectively having negative electrode tabs not coated with a negative electrode active material; and at least one separator disposed between the positive electrode and the negative electrode is sealed with an electrolyte solution in a battery case, the positive electrode tabs and the negative electrode tabs are respectively connected to positive electrode lead and negative electrode lead protruded to the outside of a battery case, and at least one an electrode terminal selected from the group consisting of the positive electrode tabs, the negative electrode tabs, the positive electrode lead and the negative electrode lead includes Wood's metal.
Community energy storage system with battery bank deactivation
A community energy storage system comprises a cabinet, at least one battery bank mounted within the cabinet, the at least one battery bank comprising a plurality of battery modules electrically coupled to one another in series; and processing structure for monitoring at least one parameter of each of the battery modules, and in the event that the at least one parameter is outside of a threshold value, deactivating the at least one battery bank.
Flexible rechargeable battery
A flexible rechargeable battery includes a protection substrate including a first terminal and a second terminal, a wiring portion including a first wiring portion and a second wiring portion, a first end of each of the first and second wiring portions being connected to the first and second terminals, respectively, and the first wiring portion and the second wiring portion being adjacent to each other and disposed in parallel, first connecting members, portions of the first wiring portion being inserted into the first connecting members to be electrically connected to the first wiring portion, second connecting members, portions of the second wiring portion being inserted into the second connecting members to be electrically connected to the second wiring portion, and battery cells, each battery cell including a first terminal electrically connected to the first connecting member, and a second terminal electrically connected to the second connecting member.
Electrochemical cells and methods of manufacturing the same
Electrochemical cells and methods of making electrochemical cells are described herein. In some embodiments, an apparatus includes a multi-layer sheet for encasing an electrode material for an electrochemical cell. The multi-layer sheet including an outer layer, an intermediate layer that includes a conductive substrate, and an inner layer disposed on a portion of the conductive substrate. The intermediate layer is disposed between the outer layer and the inner layer. The inner layer defines an opening through which a conductive region of the intermediate layer is exposed such that the electrode material can be electrically connected to the conductive region. Thus, the intermediate layer can serve as a current collector for the electrochemical cell.
Polarization film, antireflection film, and display device
A polarization film includes a polarization layer including a polymer and a dichroic dye having a maximum absorption wavelength (λmax) at about 380 nm to about 780 nm, and a protective layer disposed on a surface of the polarization layer and having a cross-linking structure.
Organic light emitting display device and method for manufacturing the same
An organic light-emitting display device includes an organic light-emitting element on a substrate, a metal substrate, and an encapsulation unit configured to seal the organic light-emitting element, and a structure in which a driving film is connected so as not to be protruded further than the substrate. A portion of the encapsulation unit is between the metal substrate and the driving film, and the portion of the encapsulation unit is configured to reduce damage to the driving film caused by the metal substrate. Thus, the organic light-emitting display device may realize a narrow bezel and also reduce a driving defect caused by damage to the driving film.
Transformable device and method of manufacturing the same
A transformable device is provided. The transformable device includes an electro-active layer. A first electrode is disposed at a lower portion inside the electro-active layer. A second electrode is disposed at an upper portion inside the electro-active layer. In the transformable device according to an embodiment of the present disclosure, performance of the electrodes is suppressed from decreasing in spite of repeated operating and a life of the transformable device can be increased as compared with a case of forming electrodes outside an electro-active layer.
Method for single crystal growth of photovoltaic perovskite material and devices
Systems and methods for perovskite single crystal growth include using a low temperature solution process that employs a temperature gradient in a perovskite solution in a container, also including at least one small perovskite single crystal, and a substrate in the solution upon which substrate a perovskite crystal nucleates and grows, in part due to the temperature gradient in the solution and in part due to a temperature gradient in the substrate. For example, a top portion of the substrate external to the solution may be cooled.
Porphyrin based sensitizer for dye-sensitized solar cell
The present invention relates to compounds of formula (I) based on a porphyrin core and a π-conjugated linker or acceptor introduced between the porphyrin core and an anchoring group having a high absorption coefficient covering the whole UV-Visible and near-infrared spectral response, and their use as sensitizer or dye and an electrochemical or optoelectronic device including a compound of the invention.
Organometallic compound and organic light-emitting device including the same
An organometallic compound represented by Formula 1: M(L1)n1(L2)n2 Formula 1 wherein in Formula 1, M, L1, L2, n1, and n2 are the same as described in the specification.
Cyclic azine compound having adamantyl group, production method, and organic electroluminescent device containing it as constituent component
An azine compound represented by the formula (1), a method for its production and an organic electroluminescent device containing it as a constituent component. wherein Ad each independently represents a 1-adamantyl group, etc., p and q are each independently 0 or 1, Ar1 and Ar2 are each independently a single bond (but only when p is 1, or q is 1), or a pyridyl group which may be substituted by a phenyl group, etc., incidentally, Ad groups on Ar1 and Ar2 are each independently bonded to said pyridyl group, etc., Ar2 is each independently a C3-13 heteroaromatic group which may be substituted by a fluorine atom, etc., X1, X2, X3 and X4 are each independently a single bond, etc., m and n are each independently 0, 1 or 2, Z is a nitrogen atom, etc., n+p+q is 1, 2 or 3.
Organic electroluminescent element, compound and material for organic electroluminescent element, used in the same, and light emitting device, display device and illumination device, using the element
An organic electroluminescent element comprising a substrate, a pair of electrodes including an anode and a cathode, disposed on the substrate, and at least one organic layer which is arranged between the electrodes and which includes a light emitting layer, wherein the organic layer contains a compound represented by general formula (1) in at least one layer. The organic electroluminescent element has a high luminous efficiency, excellent blue color purity, and little chromaticity change due to drive deterioration. (In the formula, the two Xs either both represent an O atom or both represent an S atom, and R1-R10 each independently represents a hydrogen atom or a substituent group).
Indenotriphenylene-based amine derivative for organic electroluminescent device
The present invention discloses an indenotriphenylene-based amine derivative represented by the following formula (A): wherein R1 to R5, m, n, p, L and Ar are the same definition as described in the present invention. The present invention also discloses an organic EL device employing the indenotriphenylene-based amine derivative as a hole transport material or an electron blocking material, which can lower driving voltage and power consumption and increase efficiency and half-life time.
Organic light-emitting device and method
Composition which may be useful in an organic light emitting diode, the composition having a fluorescent light-emitting polymer with light-emitting repeat units, and a triplet-accepting unit mixed with the light-emitting polymer.
Materials for electronic devices
The present invention relates to compounds of the formula (I), to the use of compounds of the formula (I) in electronic devices, and to electronic devices comprising one or more compounds of the formula (I). The invention furthermore relates to the preparation of the compounds of the formula (I) and to formulations comprising one or more compounds of the formula (I).
Non-volatile memory device and methods for fabricating the same
The invention provides a non-volatile memory device and methods for fabricating the same. The non-volatile memory device includes a non-volatile memory cell including a first transistor and a second transistor disposed on a substrate. The first and second transistors commonly use a first source region. A first gate of the first transistor and a second gate of the second transistor are different portions of a word line. First and second resistive switching elements are coupled to a first drain region of the first transistor and a second drain region of the second transistor. A first source line is coupled to the source region. First and second bit lines are coupled to the first and second resistive switching elements. The first source line, the first and second bit lines belong to a metal layer and are parallel to each other.
Non-volatile memory device
According to an embodiment, a non-volatile memory device includes a first interconnection, a second interconnection closest to the first interconnection in a first direction, rectifying portions arranged in the first direction between the first interconnection and the second interconnection, and a first resistance change portion arranged between adjacent ones of the rectifying portions in the first direction. Each of the rectifying portions includes a first metal oxide layer and a second metal oxide layer.
Backend of line (BEOL) compatible high current density access device for high density arrays of electronic components
A device has a M8XY6 layer in between a first conductive layer on the top and a second conductive layer on the bottom, wherein (i) M includes at least one element selected from the following: Cu, Ag, Li, and Zn, (ii) X includes at least one Group XIV element, and (iii) Y includes at least one Group XVI element. Another device has MaXbYc material contacted on opposite sides by respective layers of conductive material, wherein: (i) M includes at least one element selected from the following: Cu, Ag, Li, and Zn, (ii) X includes at least one Group XIV element, and (iii) Y includes at least one Group XVI element, and a is in the range of 48-60 atomic percent, b is in the range of 4-10 atomic percent, c is in the range of 30-45 atomic percent, and a+b+c is at least 90 atomic percent.