Component supply device
A component supply device which includes a moving slider for moving between a position near a wafer sheet replenishment section and a position near a mounter, a table supported on the moving slider, and a rotating mechanism for rotating the table around a specific rotation axis. The table is supported on the moving slider by a number one support point, a number two support point, and a number three support point which are provided on a circumference with the rotation axis at the center. The rotating mechanism includes a number one guide for moving number one support point in an arc with respect to the rotation axis, and driven guides for moving number two support point and number three support point in an arc with respect to the rotation axis.
System and method of cooling and ventilating for an electronics cabinet
A system and method of cooling and ventilating for an electronics cabinet is disclosed. In a particular embodiment, the system includes a cooling unit and a distribution unit in communication with the cooling unit to blow supply air through at least one main supply line. The system further includes at least one supply branch line connected to the at least one main supply line, at least one cabinet supply line connected to the at least one supply branch line, and at least one cabinet having an inlet port and an exit port, wherein the at least one cabinet supply line is connected to the inlet port. In addition, the system includes at least one cabinet return line connected to the exit port and a main return line to receive air exiting from the at least one cabinet, wherein the main return line is in communication with the cooling unit.
Cooling method for devices generating waste heat
A method (19) of cooling a heat generating device (2) where the cooling rate (17, 18) of the heat generating device (2) is determined using the rate of change of the temperature (16) of the heat generating device (2).
Control unit for a motor vehicle with a shock hazard protection cover
The invention relates to a control unit for an electric vehicle or hybrid vehicle. The control unit has a housing enclosing a cavity. The housing has a housing lid and a housing opening, wherein the housing lid is designed to close the housing opening. According to the invention, the control unit has an electrically insulating shock hazard protection cover, which has at least one projection region extending transversely with respect to a surface of the shock hazard protection cover. The housing lid has at least one receptacle for the projection region, wherein the cutout is designed to retain the projection region in a force-locking manner. The shock hazard protection cover has at least one latching hook designed to latch in a positively locking manner, or additionally in a force-locking manner, with the housing or a part of the control unit in the interior of the housing which is connected to the housing.
An electronic apparatus includes a first cover, a second cover, and a cable assembly. The second cover covers the first cover and has at least one first engaging portion. The cable assembly includes a cable body and a cover plate. The cover plate is sleeved onto the cable body and covers the first cover. The cover plate has at least one second, engaging portion. The first cover, the second cover, and the cover plate form an apparent surface of the electronic apparatus and form an accommodating space therein. The first engaging portion and the second engaging portion are engaged with each other in the accommodating space.
Cable pass-through panel for electronic equipment enclosure
An electronic equipment enclosure includes a frame structure and at least one panel secured to the frame structure. The at least one panel includes one or more panel knockouts arranged therein. Each panel knockout is configured to be removable from the at least one panel to provide a pass-through opening for a cable. The at least one panel further includes a split brush assembly seated in place of a removed one of the one or more panel knockouts.
Electronic control device
An electronic control device (10) includes a housing having a plurality of housing members (1) joined together, a housing vent hole (2) formed through the housing member (1) so as to extend in a thickness direction of the housing member, a protection wall (3) covering an outer opening (2b) of the housing vent hole (2), with a gap (3b) left between the protection wall (3) and the outer opening (2b), a protection-wall vent hole (3a) formed in the protection wall (3) at a position apart from the housing vent hole (2) so as to extend from the gap (3b) in a radial direction of the housing vent hole (2), and an air-permeable waterproof membrane (5) fixed to an inner opening (2a) of the housing vent hole (2). A vent passage (6) with a bent part (6a) is formed between the air-permeable waterproof membrane (5) and the protection-wall vent hole (3a).
Electronic device assembly
Apparatus and methods for assembling an electronic device and components thereof are provided. The electronic device may include a housing and a cover inserted into an opening in the housing. The electronic device may also include a first assembly that may be inserted into the housing through a first end, and a second assembly that may be inserted into the housing through a second end. The electronic device may also include end cap assemblies. In some embodiments, the electronic device may include an input mechanism coupled to the housing and a plate coupled to the housing. In some embodiments, a connector of the electronic device may be mounted on a circuit board by inserting a fixture into the connector, mounting the connector to a portion of the circuit board, removing the fixture from the connector, and separating the portion of the circuit board from another portion of the circuit board.
Gas sensor and method of manufacturing the same
Provided are a gas sensor and a method of manufacturing the same. The gas sensor may include a transition metal chalcogenide layer on a substrate, a metal nano material on the transition metal chalcogenide layer, and an electrode on the transition metal chalcogenide layer with the metal nano material.
Electronic component mounting system and equipment unit management method for electronic component mounting system
An electronic component mounting system stores: manufacturing plan data for each manufacturing lot; unit management data including use permission information indicating a use permission status of an equipment unit; and inventory data indicating a stock status of the equipment units. In a unit reservation processing, new allocation processing is performed for allocating an equipment unit necessary for manufacture of a new manufacturing lot to an equipment unit for a new manufacturing lot, and an allocation result is registered. The system determines whether an equipment unit of an allocation subject in the new allocation processing can be allocated to an equipment unit for the new manufacturing lot by referring to use permission information of the equipment unit, and if the equipment unit is determined as being usable, the unit reservation processing is performed.
Printed circuit board
Provided is a printed circuit board including: an insulating layer; electronic devices embedded in the insulating layer; and an adhesive layer for fixing the electronic devices.
Laminated multi-conductor cable
A laminate body includes a plurality of dielectric sheets laminated together. A first ground conductor is provided in or on the laminate body. A second ground conductor is provided in or on the laminate body and located on a different layer from the first ground conductor. A signal line is provided between the ground conductors and with respect to a direction of lamination. A signal line is provided between the ground conductors and with respect to the direction of lamination and located closer to the second ground conductor than the signal line is, and the signal line has a portion extending along the signal line in a parallel-lines area when viewed from the direction of lamination. The first ground conductor has openings in the parallel-lines area, and the openings are arranged over the signal line when viewed from the direction of lamination.
A foldable display is disclosed. In one aspect, the display includes a flexible display panel including a folding region at which the flexible display panel is configured to be folded and a rigid plane region. The display further includes a heat dissipation sheet attached to one side of the plane region and configured to dissipate heat generated by the flexible display panel. The heat dissipation sheet is not attached to the folding region.
Trace border routing
The border routing of conductive traces in devices, such as displays, touch sensor panels, and touch screens, to improve border area space usage, thereby reducing device size, and to reduce trace resistance, thereby improving device operation, is disclosed. The conductive traces can form a staggered stair-step configuration in the device border area, in which the average widths of the traces can be different from each other and each trace can have segments with different widths. The conductive traces can be coupled to an active area of the device to transmit signals to and from the active area in accordance with a device operation. The varying widths can help improve the border area space usage, reduce trace resistance, and reduce the differences in resistance between traces.
Multifunctional components for electronic devices and related methods of providing thermal management and board level shielding
Exemplary embodiments are disclosed of multifunctional components for electronic devices. In an exemplary embodiment, a multifunctional component generally includes a base component, such as a smart phone case (e.g., a back cover, etc.), an inner plate (e.g., a screenplate, a mid-plate, etc.). A heat spreader may be disposed on the base component. Thermal interface material and electromagnetic interference shielding may be disposed on area(s) of the heat spreader. The area(s) may correspond in mirror image relation to component(s) of a circuit board with which the multifunctional component is configured to be joined. During operation of the electronic device, the multifunctional component may draw waste heat from one area and transfer/spread the waste heat to one or more other areas of the electronic device, which may increase a temperature of these one or more other areas. This, in turn, may make device temperature more uniform.
Asymmetric consumables for a plasma arc torch
A consumable set is provided that is usable in a plasma arc torch to direct a plasma arc to a processing surface of a workpiece. The consumable set comprises a nozzle and an alignment surface. The nozzle includes: 1) a nozzle body defining a longitudinal axis extending therethrough, and 2) a nozzle exit orifice disposed in the nozzle body for constricting the plasma arc. The nozzle exit orifice defines an exit orifice axis oriented at a non-zero bevel angle relative to the longitudinal axis. The alignment surface is generally parallel to the exit orifice axis and dimensioned to align the exit orifice such that the plasma arc impinges orthogonally on the processing surface of the workpiece. The alignment surface is configured to lay at least substantially flush against a guiding surface angled relative to the processing surface of the workpiece.
Interchangeable power contact for a plasma arc cutting system
A power contact for a liquid-cooled plasma arc cutting system is provided. The cutting system includes a torch body and a lower torch assembly. The power contact comprises a substantially hollow body including an upper portion and a lower portion, and an external surface of the upper portion of the hollow body configured to matingly engage the torch body. The power contact further includes a thread region disposed on an internal surface of the hollow body. The thread region is configured to retain an electrode holder of the lower torch assembly of the plasma arc cutting system to matingly engage the lower torch assembly and secure the lower torch assembly to the torch body.
Lighting control with integral dimming
Lighting control devices, network systems, and methodologies, including methods for providing closed-loop dimming control of such systems, are described. In some examples, disclosed methods and device configurations may include an intelligent photo control configured to accept target dimmed fixture wattage value commands from a user, and provide closed-loop control at the fixture to achieve that target wattage via real-time adjustment of the 0-10V dimming control signal sent to the LED driver. As such, the need for trial-and-error adjustments of the 0-10V analog control voltage, or derivation of dim voltage to fixture wattage response curves in order to achieve a desired fixture wattage level, may be reduced or eliminated.
Lighting control device, lighting system, and method of controlling lighting device
A lighting control device includes: a sensor that detects a state of a user and a gesture made by the user; and a controller that controls a lighting characteristic of one or more lighting devices. In the lighting control device and in a method of controlling the lighting device, the sensor detects a first state and a second state of a hand of the user. In response to the sensor detecting the hand of the user in the first state aiming at one lighting device among the one or more lighting devices, the controller designates the one lighting device as a control target lighting device, and in response to the sensor detecting a predetermined gesture involving the hand in the second state, the controller controls a lighting characteristic of the control target lighting device.
Interactive user interface functionality for lighting devices or system
An example of a lighting system includes intelligent lighting devices, each of which includes a light source, a communication interface and a processor coupled to control the light source. In such a system, at least one of the lighting devices includes a user input sensor to detect user activity related to user inputs without requiring physical contact of the user; and at least one of the lighting devices includes an output component to provide information output to the user. One or more of the processors in the intelligent lighting devices are further configured to process user inputs detected by the user input sensor, control lighting and control output to a user via the output component so as to implement an interactive user interface for the system, for example, to facilitate user control of lighting operations of the system and/or to act as a user interface portal for other services.
Method of controlling an illumination device having a number of light source arrays
The present invention discloses an illumination device comprising: a first array of light sources comprising a number of a first type light sources and a number of a second type light sources; a second array of light sources comprising a number of said first type light sources; processing means adapted to controlling the first array by simultaneously controlling the intensity of all of said light sources light sources of the first array; controlling the second array by simultaneously controlling the intensity of all of the light sources light sources of the second array. The present invention discloses further a method for controlling such illumination device.
Light regulating apparatus with feed forward compensation and light regulating method thereof
A light regulating apparatus includes a converter, a load circuit, and a controller. The converter is configured to output a load current signal according to a controlling signal. The load circuit is driven by the load current signal. The controller is configured to generate the control signal. The controller includes an error calculation unit, a regulation unit, a feed forward compensation unit, and an addition unit. The error calculation unit is configured to generate a first error signal according to a reference current signal and a feedback signal. The regulation unit is configured to generate a regulating signal according to the error signal. The feed forward compensation unit is configured to generate a feed forward compensation signal according to the reference current signal. The addition unit is configured to generate the control signal according to the regulation signal and the feed forward compensation signal.
Performance lighting and control method
The lighting coordinator of an information handling system may associate quantitative values of a state parameter that describes a state of operation of a component of the information handling system with lighting effects. The lighting effect associated with a quantitative value may be indicative of a range of the quantitative value. The lighting coordinator may receive a signal indicative of a quantitative value of the state parameter and may transmit control signals to generate the lighting effect associated with the quantitative value of the state parameter. The lighting coordinator may receive user input to configure the association of quantitative values of the state parameter with the lighting effects. The lighting coordinator may also represent an attribute of a character or other aspect of a video game by another lighting effect. The components may include a CPU and GPU.
System and method for optimizing lighting in response to online weather data
A distributed lighting network has its lights scheduled based on weather forecast information. A lighting controller stores a lighting schedule for distribution to the distributed lighting network and transmits the lighting schedule to the network. The lighting controller receives from a subscription weather server, short-term or long-term weather forecast datasets. The lighting controller generates lighting control information to modify the lighting schedule, based on the received customized weather forecast datasets, and transmits the lighting control information to the distributed lighting network to modify the lighting schedule, based on the customized weather forecast datasets. The system also enables the lighting schedules to modulate human circadian rhythms if necessary to further promote public health and safety during weather events.
Low cost LED light string for pre-lit christmas trees
A series-wired LED light string formed of a plurality of LEDs connected in series with a current limiting resistor. A resistive component is electrically connected across each LED and serves as a shunt to electrically bypass a failed LED to keep the remaining LEDs in the light string fully illuminated. The LED light string has only two wires and is powered by a full wave rectified voltage, generated external to the light string.
Phase shift circuit and dimming circuit including the same
A phase shift circuit includes an on signal generator, an off signal generator, and a channel signal generator. The on signal generator generates an on signal having a rising edge shifted by a predetermined phase based on a pulse width modulation (PWM) signal, the off signal generator generates an off signal based on the PWM signal and the on signal, and the channel signal generator generates a channel signal that is enabled in response to the rising edge of the on signal and disabled in response to a rising edge of the off signal.
Apparatus and methods for LED control
An LED driver for driving a plurality of series-coupled LEDs includes a bypass switch having first and second terminals coupled across a portion of the LEDs and a control terminal. A slew rate control circuit is responsive to a command input signal and to a feedback voltage associated with the bypass switch and is configured to generate a bypass switch control signal with a controllable slew rate. The slew rate control circuit is further configured to detect a rate of change of the switch feedback voltage and establish the bypass switch slew rate in response to the detected rate of change. Also described is method for controlling a bypass switch coupled across a portion of a plurality of series-coupled LEDs including detecting a rate of change of a voltage associated with the bypass switch and generating a control signal for the bypass switch in response to a command input signal and to the detected rate of change of the voltage.
Control of illumination devices using DC-DC converters
In an embodiment, method of controlling an illumination device by an output signal of a DC-DC converter is disclosed. The output signal is controlled by a PWM signal. The method includes receiving a feedback signal corresponding to variation in the output signal with respect to a pre-determined output signal, and determining a target duty cycle of the PWM signal based on the feedback signal. The PWM signal of the target duty cycle is capable of enabling the DC-DC converter to generate the pre-determined output signal. The method includes providing the PWM signal of an effective duty cycle equal to the target duty cycle over N switching pulses of the PWM signal to the DC-DC converter. The method provides the PWM signal by providing M switching pulses of a first PWM signal of a first duty cycle, and N−M switching pulses of a second PWM signal of a second duty cycle.
Apparatus, method, and system for galvanically isolated control and monitoring of LED drivers
A system, apparatus, and method for operating one or more drivers of light sources, such as can be used with LED lighting fixtures, wherein main power to the drivers is galvanically isolated from communication functionalities to and from the drivers. In one example, a controller can receive information or send information to the drivers in a galvanically isolated manner. The galvanic isolation can be accomplished in different ways and configurations for high flexibility of design.
Molten metal handling device heating system
Disclosed is a heating system for molten metal handling devices, examples of which are troughs, launders and other vessels. The heating system may include a refractory containment body, heater assembly, a containment shell and a thermal inducing interface between the heater assemblies and the containment shell and/or refractory body.
Method and apparatus for operating companion device
A method, corresponding apparatuses, and a non-transitory computer readable medium for operating a companion device and a companion device are provided. A method comprises detecting, at a companion device, presence of a primary device that is paired with the companion device according to at least one short-range radio communication technique. The method additionally comprises connecting the companion device to a cellular network upon detecting that the primary device is not present. With the claimed inventions, the battery life of the companion device can be extended.
Method for optimizing a wireless network connection
The invention proposes a method for optimizing a wireless network connection when at least one of the devices comprises a configurable antenna. For avoiding Hidden Nodes problems, it is proposed to modify the configurable antenna in such a way that the number of third network devices seen only by the network device having the configurable antenna is minimized.
Proximity map request method, server and network entity using the same, proximity request validating method, and server and network entity using the same
The present disclosure proposes a proximity map request method, a server and a network entity using the same, a proximity request validating method, and a server and a network entity using the same. In one of the exemplary embodiments, the server receives a proximity map request message of a D2D discovery to request a network level user ID of the discoveree. The proximity map request message may include an application layer user ID of the discoverer and an application layer user ID of the discoveree. The server may set a notification flag according to the application layer user ID of the discoverer and the application layer user ID of the discoveree in response to receiving the proximity map request message. The server may transmit a proximity map response message comprising the network level user ID of the discoveree and the notification flag in response to setting the notification flag.
Method and apparatus for transmitting random access channel designed for transmission in high carrier frequency in a wireless communication system
A method for transmitting a random access preamble at a user equipment in a wireless communication system is disclosed. The method includes determining a random access sequence transmission period using a random access sequence, configuring a random access preamble by inserting a cyclic prefix at a front of the random access sequence transmission period and a guard time at an end of the random access sequence transmission period, and transmitting the random access preamble on a random access channel to a base station. The random access preamble is configured by repeating the random access sequence a predetermined number of times, if the length of the random access sequence is smaller than the random access sequence transmission period.
Device and method for controlling slot-based channel access in wireless LAN system, and slot-based channel access terminal in wireless LAN
An apparatus and a method of controlling slot-based channel access by an access point (AP) to manage a network in a wireless local area network (WLAN) environment and a slot-based channel access terminal are disclosed. A slot-based channel access control apparatus of a WLAN system according to an exemplary embodiment determines one of each terminal and a group of terminals as a slot allocation target, allocates a slot defined in a beacon interval to the determined terminal or group to distinguish channel access time, and transmits a beacon including information on the allocated slot.
Methods and systems for in-device interference mitigation
Methods and apparatus for mitigating in-device interference are described. The methods may include an in-device interference event (e.g. an interference situation), and the processing of events may depend on the priority of the technologies. A handover to another frequency or radio access technology (RAT) may occur in case a co-existing technology may be activated. The network may signal to the device a list of frequencies or RATs that it may be allowed to measure and handoff to. A network may provide a scaling value that the device may use to speed up reaction to the interference. The device may apply a scaling factor to an “out of synch’ counter and/or the radio link failure (RLF) timer used for the RLF procedure. The device may apply different scaling factors for the measurements and time to trigger events. The device may trigger a report to the network requesting gaps for an alternate RAT.
Communication apparatus, communication method, and recording medium
Disclosed is a communication apparatus or the like that is capable of reliably reducing communication delay. A communication apparatus (1101) has a transmission unit (1102), which, in a first period, transmits trigger information via a communication network (1103) corresponding to communication resource allocation, then, transmits information using the allocated communication resource, said first period being from first timing at which information is transmitted via the communication network (1103) to a second timing at which a specific communication resource is allocated to a request for communication resources for transmitting the information.
Dynamic spectrum access method, corresponding device, computer program product
A method is provided for enabling a requesting access node to use at least one radio frequency associated to at least one wireless communication network having at least one connected access node. Such method includes the following acts executed by a frequency access manager in the wireless communication network: retrieving at least one piece of data related to the at least one connected access node and related to the requesting access node; determining a mutual interference information between the requesting access node and the at least one connected access node in function of the at least one piece of data related to the at least one connected access node and related to the requesting access node; and transmitting, to the requesting access node of a frequency access data in function of the determined mutual interference information.
Wireless communication system, communication control method, control device, control method, control program, and wireless terminal
Connection destinations of a plurality of wireless terminals are selected from a plurality of connection destination candidates to maximize an evaluation value based on each of data rates in cases where each of the wireless terminals is connected to each of the connection destination candidates and each of resource allocation rates for each of the wireless terminals at each of the connection destination candidates.
System and method for using a super bin for radio resource requirement assessment
Embodiments are provided for assessing radio resource requirements using virtual bin virtualization. An embodiment method includes receiving a service request from a user equipment (UE) in a geographical bin. Resource requirements are then obtained, from a lookup table (LUT), for a serving radio node and neighbor radio nodes associated with the geographic bin of the UE. The LUT comprises a plurality of entries that map combinations of path losses of wireless links for the serving radio node and neighbor radio nodes to corresponding combinations of resource requirements. The entries of the path losses further include one or more service specific and network node parameters for the serving radio nodes and neighbor radio nodes, which are also mapped to the resource requirements. The obtained resource requirements are then assessed, including deciding whether to serve the UE according to the resource requirements and to resource availability.
Method to use auxiliary channel to achieve fast and power-efficient association in wireless networks
A medical system includes one or more MBAN devices that acquire and communicate patient data. The medical system further including one or more medical body area network (MBAN) systems, each MBAN system including the one or more MBAN devices that communicate the patient data with a hub device via short-range wireless communication, the communication of the patient data via the short-range wireless communication being within a predefined spectrum. The hub device receives patient data communicated from the one or more MBAN devices and communicates with a central monitoring station via a longer range communication. The one or more MBAN devices transmit an association request to the hub device on one or more auxiliary channels to associate each MBAN device with the MBAN system, the auxiliary channels being outside the predefined spectrum.
Methods, systems and devices for decoupled interference randomization for uplink reference signals
Interference between reference signals from user equipments in a wireless network, the method may be reduced by using a received time shift value from a node in the wireless network. An interference randomization technique may be applied to a reference signal and a sequence may be generated based on the reference signal to which the interference randomization technique has been applied. A processed reference signal may be derived by applying a time shift based on the time shift value to the sequence. The processed reference signal may be transmitted to the node. Related systems, methods, nodes and wireless devices are also described.
Method, device and system for transmitting uplink information
Disclosed are a method, device and system for transmitting uplink information, which are used for solving the problem that the existing UE uplink transmission mechanism may increase the load of a Macro eNB and increase the uplink interference among UEs, and is not beneficial to power saving of UEs. The method in the embodiments of the present application comprises: a macro eNB determining an uplink transmitting node used for receiving uplink information about a UE this time from a transmission node connected to the UE; determining the effective time of the uplink transmission node determined this time; and after the effective time of the uplink transmitting node determined this time has arrived, receiving the uplink information sent by the UE through the uplink transmitting node determined this time. Under a heterogeneous network, the embodiments of the present application can flexibly determine an appropriate uplink transmission node to transmit uplink information, thereby reducing the load of the Macro eNB, reducing the interference among various UEs, improving the system throughput, and saving the electric quantity of the UEs.
High priority service sending and receiving method and device in direct mode
A high priority service sending method and device in a direct mode, and a high priority service receiving method and device in a direct mode. The receiving method includes: after sending a voice frame in a voice call sending state, a user terminal receiving and detecting a priority frame in another time slot with respect to the time slot occupied by the voice call; and if the priority frame is detected, then stopping the voice call and receiving a high priority service frame in the other time slot. Using the present invention can enable an interphone in a transmitting state in a direct mode to send or receive a high priority service as well.
User terminal radio base station and radio communication method
In order to control feedback control information in uplink transmission appropriately even when using carrier aggregation in HetNet, the present invention provides a user terminal that is able to communicate with a plurality of radio base stations having overlapping coverage areas by using carrier aggregation, the user terminal comprising: a reception section that receives downlink shared channel signals using component carriers of a primary cell and a secondary cell; a generating section that generates transmission acknowledgement signals in response to the downlink shared channel signals; and an allocating section that allocates the transmission acknowledgement signals to predetermined uplink control channel resources, wherein the allocating section allocates the transmission acknowledgement signals to either or both of uplink control channel resources of the primary cell and uplink control channel resources of the secondary cell in accordance with contents of the transmission acknowledgement signals and/or an uplink control channel format.
Time-reversal wireless paradigm for internet of things
A method of connecting devices to a network is provided. The method includes providing base stations connected to a network, and at each of the base stations, receiving probe signals from terminal devices. For each of the terminal devices, the base station calculates a signature waveform based on a time-reversed waveform of a channel response signal derived from the corresponding probe signal. For each of the terminal devices, the base station determines a downlink transmit signal for the terminal device based on the downlink data and the corresponding signature waveform, and transmits the downlink signals to the terminal devices. Several base stations have overlapping broadcast regions, several terminal devices are located within the overlapped broadcast regions, the base stations transmit the downlink signals using a same frequency band, and some downlink signals transmitted by base stations having overlapping broadcast regions also overlap in time.
Localization using converged platforms
In one aspect of the invention, a method for determining the location of a device is described. The method involves using one or more signal emitting platforms, which are capable of performing a wide variety of operations. In some embodiments, for example, the signal emitting platform is capable of physical movement. Various embodiments relate to signal emitting platforms, devices, systems, servers, computer code, methods and techniques for determining the location of a device.
Activity-triggered provisioning of portable wireless networks
Apparatus and associated methods relate to configuring a network remote from a user's personal network, with parameters governing the user's personal network, in response to user activity, and at a location and time based on the user activity. In an illustrative example, the network may be a Wi-Fi network. The user's personal network may be, for example, the user's home SSID for accessing the user's personal Wi-Fi access device. In some examples, the user activity may be a request for access to the remote network using the user's home SSID. The requested access may be provided at a time and location agreed to with an SSID portability provider. Various examples may advantageously provide portable access to the Internet, for example, using the user's home SSID already configured on the user's devices so that the user's devices can seamlessly and securely access the Internet via the remote network.
Base station and method for primary and secondary synchronization signal transmission in new carriers
A method for transmitting primary synchronization signals and secondary synchronization signals in new carriers is provided, which includes: with respect to a time domain, a base station side sending Primary Synchronization Signals (PSS) and Secondary Synchronization Signals (SSS) in Orthogonal Frequency Division Multiplexing (OFDM) symbols except OFDM symbols occupied by reference signals in subframes #1 and #6, or subframes #0 and #5, or subframes #1, #6, #0 and #5; and with respect to a frequency domain, the base station side sending the PSS or SSS in resources of intermediate 6 Physical Resource Block (PRB) pairs of system bandwidth; the reference signals include Demodulation Reference Signals (DMRS).
Wireless communication device, non-transitory computer readable medium, and wireless communication system
There is provided a wireless communication device including a reception timing sense unit configured to sense reception timing information, a reception timing storage unit configured to store the reception timing information and to disclose and delete the stored reception timing information, a frame group arrival confirmation unit configured to confirm that a frame group arrives, a first frame group transmission unit, a second frame group transmission unit, a third frame group transmission unit, and a frame group transmission control unit configured to select any of the first frame group transmission unit, the second frame group transmission unit, and the third frame group transmission unit on the basis of the reception timing information and a result of frame group arrival confirmation, and to control a frame group transmission operation.
Mobile communication system
Transmission power control on a mobile station (UE) is appropriately performed when “Inter-eNB CA” is performed by using cells under control of plural radio base stations (eNB). In a mobile communication system according to the present invention, a specific radio base station (eNB#1) among plural radio base stations (eNB#1, eNB#2) performs scheduling control and transmission power control on a mobile station (UE) in all the cells (#1, #2A to #2C) under the control of the plural radio base stations (eNB#1, eNB#2).
Controlling radio transmission power in a multi-radio wireless communication device
A method for controlling transmission power in accordance with a total transmission power limit in a multi-radio wireless communication device including a master radio and a slave radio is provided. The method can include the wireless communication device determining, at the master radio, a transmission power of the master radio. The method can further include the wireless communication device providing information indicative of the transmission power of the master radio from the master radio to the slave radio. The method can additionally include determining, at the slave radio, an allowable transmission power for the slave radio. A sum of the allowable transmission power and the transmission power of the master radio may not exceed the total transmission power limit.
Reducing wireless communication to conserve energy and increase security
An electronic device includes communication circuitry configured to communicably couple the electronic device to one or more other electronic devices in a wireless network associated with a structure. A processor of the electronic device is operatively coupled to a memory. The processor is configured to determine a status associated with one or more occupants of the structure. The processor is configured to control wireless transmission power output of the electronic device or the one or more other electronic devices based on the status associated with one or more occupants of the structure.
Determining transmit power limits using a combined specific absorption measurement for multiple transmitters
A method and apparatus for determining transmit power limits for multiple transmitter devices is provided. The method begins when a two-dimensional area scan and a localized three-dimensional volume scan are performed for each transmitter and antenna. These two-dimensional area scans are converted to a three-dimensional full volume data using analytical estimations to determine the peak averaged SAR value, and subsequently determining the error associated with the analytical estimation. The error associated with the analytical estimation is determined by comparison with the measured value. The combined peak averaged SAR may then be determined for simultaneous transmissions of multiple transmitters with varying transmit powers by combining the scaled and analytically determined three-dimensional full volume data for each transmitter. The value is then further scaled by the worst-case conversion error for all active transmitters. This value is compared with the SAR limit and the maximum allowable transmit power determined for the multiple transmitters.
Terminal apparatus, communication system, communication method for transmitting the measured positional information
A collection unit collects the identification information on each terminal apparatus and the remaining amount information on a remaining amount of battery by having each terminal apparatus mutually communicate the identification information on each terminal apparatus and the remaining amount information on the remaining amount of battery by way of a second communication unit. The collection unit also collects the identification information on its own terminal apparatus and the remaining amount information on the remaining amount of battery of the own terminal apparatus. A selector selects a single terminal apparatus, based on the remaining amount information collected. When the selector selects the own terminal apparatus, the positional information on the own terminal is acquired and the acquired positional information and the identification information collected by the collection unit are transmitted by the first communication unit to the base station apparatus.
Electronic systems and method of operating electronic systems
An electronic system includes: a first device configured to generate an output signal in response to current input data and generate a power saving signal based on the current input data; a second device, and a controller. The output signal is perceivable using a physiological sense. The controller is configured to switch the electronic system into one of an inactive state and an active state, operate the second device during the active state in a power saving mode when the power saving signal is activated, and operate the second device during the active state in a normal power mode when the power saving signal is deactivated.
Saving power on handsets by filtering received status updates
In one embodiment, a method for saving power on a mobile device includes receiving an indication of termination of a power-save mode of the mobile device, and requesting presence information for a plurality of peers of a user from a server or a P2P communication network in response to the received indication.
System and method for reducing power consumption based on data activity sensitive timers
Where a source of data has a time at which it is to transmit data, if it has data to transmit, for example as determined by a timer, this time is advanced when there is an active data connection. In this manner, rather than the data connection being torn down, and then immediately set up again, the data can be transmitted before the connection is torn down. In some embodiments, a history is maintained in terms of how long data connections are maintained. Then, once data transmission on an active connection ceases, the times are advanced, or not, depending on a likelihood that the connection will stay up for some further period of time.
Detecting narrow band signals in wide-band interference
Systems and methods are disclosed that may detect a likely presence of a narrow band signal in the presence of wide-band interference without powering up a wireless receiver. A wireless device may receive a wireless signal, measure a first energy level in a first frequency band associated with an expected frequency band of the narrow band wireless signal, measure a second energy level in a second frequency band that is offset from and non-overlapping with the first frequency band, and determine whether a difference between the first energy level and the second energy level exceeds a threshold. A wireless receiver of the wireless device may be powered up based at least in part on the difference between the first energy level and the second energy level exceeding the threshold.
Adaptive control of RF low power modes in a multi-rate wireless system using device mode
Methods, systems, and devices are described for power conservation in a wireless communications system. In embodiments, power conservation may be achieved by adaptively controlling power modes of a wireless communication device, and implementing lower power modes with various modes of the device. According to one aspect, the mode of the device may be a beacon monitoring mode or a delivery traffic indication message (DTIM) mode. In such a mode, the device may receive a portion of a beacon in a first power mode. The device may transition to a second, different (e.g., higher) power mode using information contained in the received portion of the beacon as guidance.
Apparatus and method for processing signal for D2D communication in wireless communication system
An apparatus of a transmitter for signal processing in a wireless communication system is provided. The apparatus includes a first signal processing module set configured to process a first signal transmitted to a base station and a second signal processing module set configured to process a second signal transmitted to a terminal, wherein the first signal processed by the first signal processing module set has a different bandwidth than the second signal processed by the second signal processing module set.
Method and device for implementing power saving in wireless LAN system
The present invention relates to a wireless communication system, and, more particularly, a method and device for implementing power saving in a wireless LAN system are disclosed. A method of implementing power saving by a station (STA) in a wireless LAN system according to an embodiment of the present invention may include the steps of: receiving a plurality of frames from an access point (AP) by means of the station STA that is changed from a sleep state to an awake state; determining whether each of the plurality of frames has an error; and transmitting a response frame representing the presence and absence of the error to the AP. Even if each of the plurality of frames includes information instructing the AP to stop transmitting to the station to the station STA, it is possible to maintain the awake state when at least one of the plurality of frames has an error.
Methods and apparatuses for configuring number of antennas for massive MIMO communication
A central node of a Massive Multiple-Input-Multiple-Output (MIMO) system includes a processor and a transceiver. The processor is configured to determine a number of active antennas to be used to serve users in at least one cell of the Massive MIMO system based on wireless network parameters for the Massive MIMO system. The transceiver is configured to transmit the determined number of active antennas to a Massive MIMO base station in the at least one cell.
Method and apparatus for video communication
A method for changing a communication network for video communication is provided. The method includes performing, by a user equipment (UE), video communication through a mobile communication network; searching for whether there is a wireless local area network (WLAN) accessible by the UE; displaying, if a WLAN accessible by the UE is found, the accessible WLAN; and when the displayed WLAN is selected by a user, changing a communication network for the video communication to perform the video communication through the selected WLAN.
Communication control method, base station and user terminal
A communication control method for linking a cellular communication system with a wireless LAN system comprises: in a cellular base station, a step of storing location information of a wireless LAN access point; a step of acquiring location information of a user terminal connected to the cellular base station; a step of determining, on the basis of the respective location information of the wireless LAN access point and the user terminal, whether or not the user terminal is connected to the wireless LAN access point; and a step of transmitting a scan instruction for the wireless LAN access point to the user terminal when it is determined that the user terminal is connected to the wireless LAN access point.
Apparatus, and associated method, for facilitating WLAN selection by a mobile node
Apparatus, and an associated method, by which to facilitate selection of a WLAN through which a mobile node communicates. Selection takes into account the geographic positioning of the mobile node. The mobile node ascertains its geographic positioning by monitoring cellular-positioning signals. And, availability of WLANs through which to communicate is ascertained by detecting signals broadcast by the WLANs.
Reference signal design for cell search in an orthogonal wireless communication system
Systems and methodologies are described that facilitate efficient cell acquisition in a wireless communication system. In one aspect, a reference signal for use in cell acquisition can be constructed in a bandwidth-agnostic manner such that it contains a common central portion in a predetermined frequency band that is independent of a bandwidth utilized by an associated wireless communication system. The central portion can be constructed as a two-dimensional block in time and frequency that spans a default cell search bandwidth, a predetermined bandwidth specified by synchronization codes or other signals, or another suitable bandwidth. A reference signal can then be constructed form the central portion by tiling or expanding the central portion such that it spans the entire system bandwidth.
Method of performing wireless local area network measurement in wireless communication systems
A method of performing WLAN measurement for a communication device in a wireless communication system is disclosed. The method comprises receiving WLAN measurement configuration including a WLAN identity of a WLAN that is to be measured, from a network, scanning WLAN channels to detect the WLAN identity, measuring received power in a channel when the WLAN identity is detected on the WLAN channel, determining if a WLAN access point (AP) can be connected, and transmitting a first message indicating the WLAN is not available to the network after the WLAN identity is not detected or after the WLAN identity is detected but the WLAN access point (AP) cannot be connected.
Active search method in wireless LAN system
An active search method in a wireless LAN system is disclosed. The active search method comprises the steps of: transmitting, through an arbitrary channel, a preceding probe request frame for confirming the existence of an access point; acquiring, from at least one access point, a probe ACK frame that is a response to the preceding probe request frame; setting a maximum waiting time on the basis of the number of probe ACK frames; and performing an active search for an access point in the arbitrary channel for the maximum waiting time. Therefore, the waiting time for receiving a probe response frame can be reduced.
Proximity detection for femtocells using out-of-band links
Systems, methods, devices, and computer program products are described for supporting macrocell-to-femtocell hand-ins of active macrocell communications for a mobile device. A mobile device may perform an out-of-band (OOB) search for the femtocell, the OOB search triggered by a proximity detection configuration command from the macrocell. The mobile device may wirelessly communicate with a located femtocell via an OOB link, and receive femtocell information from the femtocell via the OOB link. The mobile device may transmit the received femtocell information to the macrocell. The macrocell may generate instruction for a mobile device search based on the femtocell information. The macrocell may transmit such instructions to the mobile device for an in-band search for the femtocell.
Method and system for efficient management of a communication system
A method that incorporates the subject disclosure may include, for example, identifying, by a network device comprising a processor, a bearer path through a communication network for carrying internet protocol packets associated with a calling session between a first mobile device and a second mobile device and activating, by the network device, a bridging bearer path at a nearest network element to generate a direct tunnel for carrying the internet protocol packets associated with the calling session and to modify the bearer path to a shortest bearer path, where the nearest network element comprises a network element that is communicatively coupled to both the first mobile device and the second mobile device and that is closest to the first mobile device and the second mobile device. Other embodiments are disclosed.
Method and apparatus of LWA PDU routing
Apparatus and methods are provided for LWA PDU routing. In one novel aspect, LTE PDU packets are routed through a WLAN AP to a UE by encapsulation of the data packets. An adaption layer encapsulate the whole packet as an Ethernet frame by appending the Ethernet MAC header to the payload. In other embodiments, the adaption layer encapsulates LTE PDU as GRE packet, configures VLAN for WLAN AP. In another novel aspect, the LTE PDU is identified by at least one of methods comprising the EtherType value, the source address, the GRE header, and the GTP header. In another embodiment, the default path is always used for LWA routing. In yet another novel aspect, the LTE PDU is forwarded by the MAC address, by the GRE tunnel configuration, or by the GTP tunnel configuration.
MBMS support in heterogeneous network and in-venue
A method, an apparatus, and a computer program product for wireless communication enable user equipment operating in a current cell that provides a multimedia broadcast/multicast service to distinguish between neighboring cells that have different operational characteristics. The presence of a neighboring cell is identified while the user equipment is operating in a first cell and it is determined whether the neighboring cell provides services different from the services provided in the current cell, based on information maintained by the user equipment. The user equipment may move to the neighboring cell to obtain better or different service.
User terminal for network selection in a communication system
A user terminal includes a controller configured to perform a network selection operation for selecting an access network in which the user terminal exchanges traffic from among a cellular RAN (Radio Access Network) and a wireless LAN (Local Area Network). The controller performs processes of: receiving wireless LAN identifiers for using the network selection operation, the wireless LAN identifiers broadcasted from a cellular base station, and receiving offload related information for prompting the user terminal to steer the traffic to the wireless LAN, the offload related information broadcasted from the cellular base station.
Methods for improved inter-radio access technology measurements
A method at a mobile device for increasing measurement gaps to facilitate inter-radio access technology measurements is provided. The method at the mobile device: receiving inter-radio access technology (RAT) measurement configuration information from the network; when the device is actively connected, determining whether a triggering criterion is met, based on the received information; and if the triggering criterion is met, increasing the time available for measurements.
Method to optimize PCI confusion detection and resolution
In accordance with the exemplary embodiments of the invention there is at least a method and apparatus to perform operations of receiving, by an access node, from a user equipment a physical cell identity of a neighbor cell in a communication network; determining information including at least one of an angle of arrival and UE Rx-Tx time difference with respect to the user equipment of the communication network; and storing the determined information in a neighbor relation table to use in network operations.
Methods and devices for cell discovery
This disclosure sets forth methods and devices for communication between mobile devices and base stations with active and dormant states. In an embodiment, a base station transmits system information during an active state of the base station with at least one system-information message. The at least one system-information message includes a SystemInformationBlockType1 (“SIB1”) message with a first update-indicator field. The base station selects an update value that indicates whether the system information has changed since a previous transmission of a previous SIB1 message. The base station transmits at least one dormant-state message during a dormant state of the base station with the selected update value in a second update-indicator field of the at least one dormant-state message.
Base station providing handover among small cells
A source base station method, a source base station, a target base station method, a target base station and computer program products are disclosed. The source base station method comprises: in response to receiving an identification message from a user equipment being served by the serving base station identifying a target base station detected by the user equipment, transmitting a prepare message to the target base station requesting the target base station allocate but not utilise resources to support communication with the user equipment; and transmitting an active set update message to the user equipment instructing the user equipment to add the target base station to its active set. In this way it can been seen that functionality employed during hard handover is used in order to provision the target base station, but that soft handover procedures are used towards the user equipment. This means that the target base station is able to be rapidly handed over to when required, since it has already been provisioned and configures the user equipment to be expecting transmissions from the target base station when required. This enables a more simplified base station to be provided which need not provide all the functionality for soft handover. Also, because no soft handover is required, limited additional resources are required over the backhaul, and the processor and memory requirements are less intensive.
Frequency agility for an ISM band home area network
Due to interference that typically occurs in the ISM band, it may be necessary for one or more network devices to switch to an alternative channel. A list of one or more alternate network channels may be generated by a coordinating/gateway device based on the energy level and a distance from a primary network channel. The alternate network channel list may be distributed to neighbor devices and, in the event of interference, link loss, and/or a channel switch notification, the neighbor devices may automatically switch to the first alternate network channel in the list.
Method for segmenting and reordering a radio link control status protocol data unit and a device therefor
The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device for segmenting and reordering a RLC status PDUs in the wireless communication system, the method comprising: generating an RLC status PDU (Radio Link Control status Protocol Data Unit); segmenting the generated RLC status PDU if a size of transmitting resource is smaller than a size of the generated RLC status PDU; generating a plurality of Segment RLC status PDUs, wherein each Segment RLC status PDU has a segment of the generated RLC status PDU and a RLC header including segmentation information; and transmitting the plurality of Segment RLC status PDUs.
Cognitive flow control based on channel quality conditions
A system and method which improve the performance of a wireless transmission system by intelligent use of the control of the flow of data between a radio network controller (RNC) and a Node B. The system monitors certain criteria and, if necessary, adaptively increases or decreases the data flow between the RNC and the Node B. This improves the performance of the transmission system by allowing retransmitted data, signaling procedures and other data to be successfully received at a faster rate, by minimizing the amount of data buffered in the Node B. Flow control is exerted to reduce buffering in the Node B upon degradation of channel qualities, and prior to a High Speed Downlink Shared Channel (HS-DSCH) handover.
Decision making based on remote observation of node capabilities
A method, apparatus, and computer program product are provided for making network optimization decisions based on observed network node performance information. Network nodes may continuously report performance measurement information to network servers. Observers may request registration with the servers and access to the mode measurement information. The observer may specify a measurement threshold that, when met, causes the server to report node measurement data to the observer. The node measurement data enables the observer to make network optimization and control decisions. An optimal radio frequency might be selected; a node might switch between different gateways or cause a handoff from one gateway to another for efficient traffic routing. A user could observe measurement data for friends and receive notice when friends are in close proximity or engaged in like activity such that a social contextual community might be formed.
Terminal, base station, communication method, and integrated circuit
There are provided a terminal, a base station, a communication method, and an integrated circuit for enabling the base station and the terminal to efficiently perform received power measurement and perform a measurement report in a communication system in which the base station and the terminal perform communication with each other. The terminal that performs communication with the base station, includes a reception unit 205 that performs received power measurement that is based on a first signal in a certain cell, in which in a case where a configuration of a second signal is set and the certain cell is not set to a predetermined carrier type, the reception unit 205 performs the received power measurement that is based on the first signal, and in a case where the certain cell is set to the predetermined carrier type, the reception unit 205 performs the received power measurement that is based on the second signal.
Radio measurement collection method and radio terminal
A radio measurement collection method according to the present invention, comprises the steps of: sending IdleMDTConfiguration message for setting a plurality of measurement triggers from E-UTRAN including a radio base station eNB to a radio terminal UE; setting the plurality of measurement triggers in the radio terminal UE by the radio terminal itself according to the IdleMDTConfiguration message from the E-UTRAN; measuring a radio environment for each of the plurality of measurement triggers by the radio terminal UE in an idle mode; and storing, by the radio terminal UE, each measurement result obtained at the measuring step in association with the measurement trigger corresponding to the measurement result.
Telecommunication system and method
A method for a user equipment to transmit a set of data to at least a first telecommunication network, said user equipment comprising a rechargeable power supply, said method comprising the acts of acquiring network related information from at least a second telecommunication network by the user equipment and initiating the transmission of a set of data to the at least first telecommunication network upon detection of the charging of the power supply, the set of data comprising said network related information.
Methods for determining a loading of a wireless communications system and communication apparatuses utilizing the same
A method for determining a loading of a wideband communications channel in a wireless communications system includes: setting up a loading table for the wideband communications channel comprising a plurality of narrow band communications channels; obtaining channel characteristics of the plurality of narrow band communications channels; deciding on a number of data streams and a practical bandwidth of the wideband communications channel for a data transmission transaction and selecting one or more peer communications devices for receiving the data streams; completing the data transmission transaction with the one or more peer communications devices; updating the loading table with the information about the practical bandwidth of the wideband communications channel, the number of data streams and duration of the data transmission transaction; and computing the loading by using the information in the loading table in accordance with a pre-determined formula.
Link adaptation and device in active scanning method
Disclosed are a link adaptation method and device in an active scanning method. The link adaptation method transmits a the probe request frame comprising null data packet announcement (NDPA) information elements, transmits a null data packet (NDP) frame comprising only a physical layer convergence protocol (PLCP) header after transmitting the probe request frame, and receives a the probe response frame comprising feedback information elements measured based on the NDP frame. Therefore, the invention is capable of improving data transmission efficiency by using a modulation coding scheme (MCS) suitable for a channel state from initial connection.
Transmission method for network management control information and microwave device
The present invention relates to a transmission method for network management control information and a microwave device, where the method includes: receiving, by a first device, network management control information, where the network management control information is microwave parameter configuration information of a second device; generating, by the first device, a control signal according to the network management control information, and generating a to-be-sent radio frequency signal after baseband processing and radio frequency processing are performed on preset information; and performing, by the first device, modulation on the radio frequency signal by using the control signal, to obtain a parameter configuration signal, and sending the parameter configuration signal to the second device.
Correlation-based self-interference suppression
Representative implementations of devices and techniques provide self-interference suppression for a transceiver of a wireless communication system. To minimize interference from a transmit signal appearing on a receive path of the system, a cross-correlation is minimized between the transmit signal and a desired receive signal.
Method for configuring a wireless network
The invention relates to method for configuring a first wireless network that includes at least one access point. In order to optimize the configuration of the first wireless network, the method comprises a step of configuring at least one parameter of the at least one access point of the first wireless network on the basis of at least a portion of the linking balance of a second wireless network including at least two nodes, the nodes being positioned in a predetermined physical space.
Systems and methods for detecting illegitimate devices on wireless networks
The disclosed computer-implemented method for detecting illegitimate devices on wireless networks may include (1) identifying a baseline signal strength for a wireless network, (2) monitoring a signal strength of the wireless network to obtain at least one additional signal strength measurement, (3) determining that the additional signal strength measurement varies from the baseline signal strength beyond a threshold, (4) determining, in response to determining that the additional signal strength measurement varies from the baseline signal strength, that an illegitimate device is present on the wireless network, and (5) initiating, in response to determining that the illegitimate device is present on the wireless network, a security action. Various other methods, systems, and computer-readable media are also disclosed.
Method and apparatus for performing membership verification or access control in wireless communication system
A method and apparatus for performing a membership verification or an access control in a wireless communication system is provided. A mobility management entity (MME) performs the membership verification or the access control of a user equipment (UE), and transmits verified UE membership information to a target HeNB.
Per-host locator to enable mobility gateway relocation in distributed mobility management
A method and system of relocating user equipment, such as a mobile device in a network from a first mobility anchor to a second mobility anchor, includes providing an identifier address to the user equipment when the latter is anchored to the first mobility anchor or gateway. When the user equipment is relocated to be anchored at the second mobility anchor or gateway, a per-host locator address is associated with the user equipment, the per-host locator address directing network packets to be routed to the second mobility anchor. A destination address of network packets addressed to the identifier address is translated to the per-host locator address, such that the network packets are routed to the second mobility anchor, and the destination address of network packets that are addressed to the per-host locator address are reverse translated to the identifier address, and the packets are forwarded to the user equipment.
Distance estimation method, transmission power control method, user apparatus, and base station
A distance estimation method for, by causing a first user apparatus to receive a discovery signal from a second user apparatus, estimating a distance between the first user apparatus and the second user apparatus is provided. The distance estimation method includes a step of receiving from the second user apparatus the discovery signal including transmission power information of the discovery signal, a step of obtaining the transmission power information from the discovery signal, and a step of estimating the distance between the first user apparatus and the second user apparatus from receive power information of the discovery signal at the first user apparatus and the transmission power information.
Method and device for realizing terminal WIFI talkback
Disclosed are a method and device for realizing WIFI talkback of a terminal, related to the field of mobile communications technologies, wherein the method includes the following steps: a calling terminal initiating a request for obtaining a dynamic IP address via a WIFI wireless local area network (LAN); after receiving the request, a called terminal judging whether the calling terminal has successfully obtained the dynamic IP address; if the called terminal determines that the calling terminal has successfully obtained the dynamic IP address, it determining whether the calling terminal has enabled a talkback function; if the called terminal determines that the calling terminal has initiated the talkback function, the called terminal sending a message to the calling terminal for indicating that the called terminal is online, thereby enabling the calling terminal and the called terminal to perform the WIFI talkback.
Space division multiple access for wireless LAN, and channel estimation for the same
A method of transmitting data in a wireless local access network, the method comprising: transmitting, by an access point, a downlink management frame to a plurality of recipients, the downlink management frame including information about a group address indicating a station group to which the plurality of recipients belongs; transmitting, by the access point, a data frame to the plurality of recipients, the data frame including the group address and a plurality of Aggregate-Medium Access Control (MAC) Protocol Data Units (A-MPDUs) for the plurality of recipients, wherein each of the plurality of A-MPDUs includes at least one MPDU for a corresponding one of the plurality of recipients, and wherein each of the plurality of A-MPDUs further includes zero or more padding bits so that all of the plurality of A-MPDUs have the same transmission time corresponding to a transmission time of a longest A-MPDU among the plurality of A-MPDUs.
Autonomous semantic labeling of physical locations
A portable electronic device may generate a (RF) radio frequency fingerprint that includes information representative of at least a portion of RF signals received at a given physical location. The RF fingerprint may include, for example, a unique identifier and a signal strength that are both logically associated with at least a portion of the received RF signals. The portable electronic device may also receive data representative of a number of environmental parameters about the portable electronic device. These environmental parameters may be measured using sensors carried by the portable electronic device. Considered in combination, these environmental parameters provide an environmental signature for a given location. When combined into a data cluster, the RF fingerprint and the environmental signature may provide an indication of the physical subdivision where the portable electronic device is located. The portable electronic device may then generate a proposed semantic label for the physical subdivision.
Method and apparatus for forming communication group based on location history
Communication groups are formed based on mobile station location history. The process includes receiving, at a controller device, a group formation request from a requesting device, the request specifying a location and a time window, identifying one or more mobile stations determined to be within a threshold area relative to the location during the time window, and causing a communication group to be created including the identified one or more mobile stations. A further process includes a requesting device configured to identify a location and time window associated with an event, transmit a group formation request specifying the location and the time window and requesting formation of a communication group comprising mobile stations located within a threshold area relative to the location during the time window, and transmit using a communication group identifier provided to the requesting device.
Transmission management system, transmission system, transmission management method, and storage medium
A transmission management system for controlling data transmission between a first transmitting terminal and a second transmitting terminal is provided. The transmission management system includes a receiving unit that receives location information about the second transmitting terminal; and a transmitting unit that transmits first presence information about the first transmitting terminal to the second transmitting terminal depending on first location information about the second transmitting terminal received by the receiving unit, and transmits second presence information about the first transmitting terminal to the second transmitting terminal depending on second location information about the second transmitting terminal received by the receiving unit.
Method for performing a proximity service and user equipment
One disclosure of the present specification provides a method for performing a proximity service (ProSe). The method may be performed by a user equipment (UE) and comprise: performing, by the UE configured with a primary cell (Pcell) and a secondary cell (Scell), a switching between the ProSe and a cellular service with at least one of the Pcell and the Scell; transceiving a ProSe discovery signal with at least one or more adjacent UEs after performing a switching from the cellular service to the ProSe service; and transceiving a signal with the at least one of the Pcell and the Scell after performing a switching from the ProSe service to the cellular service. Here, the UE is allowed an interruption of up to one subframe that is N subframes before and after an uplink (UL) subframe configured for transmitting the ProSe discovery signal.
Apparatus and method for establishing communication link
A method for a communication link establishing device to establish a communication link in a targeted communication system is provided. A source terminal transmits a source terminal's identification information and threshold value information for selecting a relative angle measurement target to neighboring terminals including a target terminal, and transmits a relative angle measurement request signal to the target terminal and the neighboring terminals. Upon receipt of a response signal for the relative angle measurement request signal from at least one of the neighboring terminals including the target terminal, a communication link with the selected communication target's terminal is established based on the information contained in the response signal.
System and method for communication with a tracking device
A system and method for providing communication with a tracking device are disclosed. An example tracking device includes a location detector, a communication device, memory, a processor, and a configuration routine. The location detector is operative to determine locations of the tracking device. The communication device is operative to communicate with a remote system. The memory stores data and code, the data including location data determined by the location detector and configuration data. The processor is operative to execute the code to impart functionality to the tracking device. The functionality of the tracking device depends at least in part on the configuration data. The configuration routine is operative to modify the configuration data responsive to communications from the remote system. Thus, functional access to the tracking device is provided to the remote system.
System for and method of providing enhanced services by using machine-based wireless communications of portable computing devices
A system for and a method of providing enhanced services by using machine-based wireless communications of portable computing devices (PCDs) are described. More specifically, a system for and a method of efficiently and effectively projecting, in a controlled fashion, a user's profile to a service provider's PCD in anticipation of an expected interaction between the user and the service provider. The user's profile may comprise content related to identification, current physical location, personal preferences, etc. The system and method may emphasize proactively controlled projection of private/personal information, proactively controlled use of PCD resources, and proactively controlled use of communication network resources.
Techniques are described for providing an indication of creative digital media associated with a geographic location. Embodiments determine positional information corresponding to a geographic location. One or more instances of creative digital media that include content with a predefined association with the geographic location are identified from a plurality of instances of creative digital media. Embodiments provide an indication of at least a portion of the identified instances of creative digital media.
Electricity storage device, method of controlling electricity storage device, charging device, method of controlling charging device, and wireless connection setting system
An electricity storage device includes a storage battery charged by a charging device, a first connector that detachably connects the electricity storage device with the charging device, a first communicator that performs wireless communication with an information terminal, a second communicator that performs wired communication with the charging device when the electricity storage device is attached to the charging device via the first connector, and a controller that causes, when the first communicator receives, from the information terminal, a wireless setting value for the charging device to establish wireless connection to a specific access point, the second communicator to transmit the wireless setting value to the charging device.
Wireless communications adapter for a network device
Described herein is an adapter that can facilitate communications between a bi-polar serial communications port of a network device and a mobile device that communicates wirelessly. The adapter can include circuitry configured to communicate and receive wireless signals to and from the mobile device over air at least at 1 Mbit/s. Such circuitry can also be configured to consume at most 0.5 W and convert a wireless signal into a unipolar signal, and vice versa. The adapter can also include an energy storage component configured to store energy from a bi-polar serial signal received from the port. The adapter can also include circuitry, configured to receive the stored electrical energy and convert a unipolar signal to a bi-polar serial signal compatible with the port using the received energy. The adapter can also include circuitry configured to convert a bipolar signal to a unipolar signal.
Communication system, communication terminal, server, communication method, recording medium, information query method and information specifying method
A communication system includes a plurality of communication terminals and a server. The plurality of communication terminals perform wireless communication therebetween by a predetermined communication protocol. The server is to be connected with the plurality of communication terminals through a predetermined communication line. The plurality of communication terminals each include a first receiving section which receives identification information sent from another communication terminal for identifying the another communication terminal and a first sending section which sends to the server through the predetermined communication line the identification information received by the first receiving section. The server includes a second receiving section which receives the identification information sent from the communication terminal and a specifying section which specifies, among the plurality of communication terminals, the communication terminal whose identification information has not been received based on the identification information received by the second receiving section.
Method for establishing WLAN by mobile terminal, and mobile terminal
Provided are a method for establishing a WLAN by a mobile terminal and a mobile terminal. The method comprises: when the mobile terminal needs to establish a WLAN with other terminals, the mobile terminal starts Bluetooth, and modifies a name of a Bluetooth device of the mobile terminal to a character string that contains an identifier; and starts Bluetooth search to acquire Bluetooth MAC addresses of other terminals with the identifiers contained in the name of the Bluetooth device; and a Bluetooth MAC address of the mobile terminal is compared with the acquired Bluetooth MAC addresses respectively, and when the Bluetooth MAC address of the mobile terminal meets a pre-set condition, setting the mobile terminal as a wireless access point of the WLAN.
Server information handling system wireless management and topology
A datacenter server information handling system topology is determined from Bluetooth Low Energy beacon signals communicated with a mobile information handling system that provides multiple ranges temporally related as the mobile information handling system moves through the datacenter. Server information handling system positions are determined and mapped relative to each other and also relative to position information detected in the datacenter, such as with a camera or accelerometer disposed in the mobile information handling system.
Machine type communication (MTC) devices, service networks, and methods for configuring periodic update timers thereof
A Machine Type Communication (MTC) device including a wireless transceiver and a controller is provided. The wireless transceiver performs wireless transmission and reception to and from a service network. The controller receives a paging message including a timer update flag from the service network via the wireless transceiver, transmits a Service Request message to the service network via the wireless transceiver in response to the paging message including the timer update flag, and receives a downlink (DL) Information Transfer message including a value for a periodic update timer from the service network via the wireless transceiver.
Techniques for predictive power management of a mobile device
Techniques for managing discussion sharing on a mobile platform, comprising a power application. The power application may include, among other components, a power monitoring component to monitor at least one component and/or at least one application of a mobile device to determine device profile information, and a power management component to provide the determined device profile information of a mobile device to a server device and receive predicted information representative of forecasted power utilization of the mobile device and/or context sensitive recommendation information representative of one or more context sensitive recommendations for the mobile device.
Electronic apparatus and method for activating specified function thereof
An electronic apparatus and a method for activating a specified function are provided. The electronic apparatus includes a speaker, an audio signal processor and an application processor. The audio signal processor senses a variation of an acoustic condition of the speaker. The application processor is used for: generating a logic high or low signal in response to the sensed variation of the acoustic condition; interpreting the logic high or low signal as a control signal; and performing an instruction corresponding to the control signal.
Methods and apparatus for processing audio signals
Various methods and apparatus for processing audio signals are disclosed herein. The assembly may be attached, adhered, or otherwise embedded into or upon a removable oral appliance to form a hearing aid assembly. Such an oral appliance may be a custom-made device which can enhance and/or optimize received audio signals for vibrational conduction to the user. Received audio signals may be processed to cancel acoustic echo such that undesired sounds received by one or more intra-buccal and/or extra-buccal microphones are eliminated or mitigated. Additionally, a multiband actuation system may be used where two or more transducers each deliver sounds within certain frequencies. Also, the assembly may also utilize the sensation of directionality via the conducted vibrations to emulate directional perception of audio signals received by the user. Another feature may include the ability to vibrationally conduct ancillary audio signals to the user along with primary audio signals.
A hearing instrument microphone device incudes at least two microphone sound ports (or sound inlets), a pressure difference microphone in communication with at least two of the sound ports and a pressure microphone in communication with at least one of the sound ports, wherein the acoustic centers of the pressure difference microphone and the pressure microphone essentially coincide.
Systems and methods for detecting degradation of a microphone included in an auditory prosthesis system
An exemplary system includes a sound processor associated with a patient, a first microphone communicatively coupled to the sound processor and configured to detect an audio signal presented to the patient and output a first output signal representative of the audio signal, and a second microphone communicatively coupled to the sound processor and configured to detect the audio signal presented to the patient and output a second output signal representative of the audio signal. The sound processor is configured to 1) receive the first and second output signals, 2) determine that a difference between the first and second output signals meets a threshold condition, and 3) perform, in response to the determination that the difference between the first and second output signals meets the threshold condition, a predetermined action associated with the quality level of the first microphone. Corresponding systems and methods are also disclosed.
Hearing assistance device with a low-power mode
A portable hearing assistance device comprises an input unit, an output unit, a forward path between the input unit and the output unit, and an energy source for energizing components of the hearing assistance device. The hearing assistance device further comprises a control unit to control activation (or deactivation) of a low-power mode of operation of the hearing assistance device. When the low-power mode is activated—the draw of current from said energy source is reduced compared to a normal mode of operation of the device, the activation (or deactivation) being influenced by a combination of at least two different control input signals to the control unit, each control input signal being a signal selected from 1) signals relating to current physical environment, 2) signals relating to current acoustic environment, 3) signals relating to current wearer state, and 4) signals relating to current state or operation mode.
MEMS microphone assembly and method of operating the MEMS microphone assembly
A MEMS microphone assembly includes a MEMS transducer element having a back plate and a diaphragm displaceable relative to the back plate. A bias voltage generator is adapted to provide a DC bias voltage applicable between the diaphragm and the back plate. An amplifier receives an electrical signal from the MEMS transducer element and provides an output signal. The amplifier is adapted to amplify the electrical signal from the MEMS transducer element according to an amplifier gain setting. A processor is adapted to carry out a calibration routine at power-on of the microphone assembly determining information regarding the DC bias voltage and/or the amplifier gain setting.
Audio output balancing
Systems and method are provided herein for balancing of outputs from playback devices playing audio content in synchrony. In one embodiment, the balancing of outputs may involve receiving a first audio signal to be played by a first playback device according to a first crossover frequency, determining a limiting result by applying a limiting function associated with a second playback device to a second audio signal to be played by the second playback device according to a second crossover frequency, and based on the first limiting result, configuring the first playback device to play the first audio signal according to a third crossover frequency. In some cases, the first and second playback devices may be configured to play the first and second audio signals, respectively, in synchrony.
Earphone having a controlled acoustic leak port
An earphone comprising an earphone housing having a wall comprising (1) a front side that joins (2) an end portion in which a primary sound output opening is formed, which joins (3) a face portion in which a secondary output opening is formed, which joins (4) a back side which joins the front side and encloses a driver, wherein the face portion and the front side form a tapered portion of the earphone housing that is dimensioned to be inserted into, and contact, an ear of a wearer, wherein the primary output opening is dimensioned to output sound generated by a diaphragm of the driver contained within the earphone housing into the ear, the secondary output opening is dimensioned to vent the ear to a surrounding environment, and wherein the primary output opening and the secondary output opening face different directions and are positioned over a sound output face of the driver.
Top port microphone apparatus
A microphone includes a microphone base that has a first surface and a second surface. The microphone also includes a microelectromechanical system (MEMS) device coupled to the first surface of the microphone base. The microphone also includes a cover coupled to the first surface of the microphone base, such that the cover divides the first surface into a covered portion where the cover encloses the MEMS device, and a non-covered portion extending away from the cover. The microphone also includes one or more pads on the uncovered portion of the first surface of the base. The microphone also includes a port extending through the base from the first surface to the second surface.
An earphone device includes a housing having a driver unit, and a sound guide tube mounted on a front surface of the housing to protrude from the front surface, in which the sound guide tube is disposed at a position deviated from a center position of the housing.
Systems and methods for activity monitoring
A activity monitoring computing system includes a network circuit exchanging information over a network and an evaluation circuit. The evaluation circuit receives, over the network via the network circuit, sensor data from a monitoring device indicative of physiological and movement characteristics of a monitored individual during performance of an assigned task. The evaluation circuit determines productivity information based on a comparison of the physiological and movement characteristics of the monitored individual and expected physiological and movement characteristics associated with the assigned task. The evaluation circuit transmits, over the network via the network circuit, the productivity information to at least one of a display device and the monitoring device.
Systems and methods for making video discoverable
Systems and methods for discovering and interacting with video on a frame level are disclosed. A person viewing a video can capture a frame from a video using a mobile device. The captured frame and information about items within the frame are displayed on the user's mobile device. The user can learn about the items or interact with the displayed items such as purchasing the items using the mobile device.
Systems and methods for providing non-intrusive advertising content to set-top boxes
Systems and methods are disclosed for providing non-intrusive advertising content to users. The method includes receiving user input reflecting user content preferences for receiving desired content related to specific topics in lieu of standard advertising slots while watching playable media content via a set-top box. The method may further include receiving a request for playable media content and then retrieving desired content based on user content preferences. Thereafter, the method may include choosing non-intrusive advertising content and generating datagrams that include the desired content and the non-intrusive advertising content. The datagrams may be concatenated with the playable media content to generate displayable content. The display content may then be provided for displaying.
RS-DVR systems and methods for unavailable bitrate signaling and edge recording
A remote storage digital video recorder (RS-DVR) system is disclosed. The RS-DVR system includes a network interface to communicate data between the RS-DVR system and a subscriber system via a network, a file system module coupled to the network interface, an ingest agent coupled to the file system module to receive encoded media segments that represent media content files encoded at a plurality of different bitrates; and a storage architecture coupled to the file system to store the encoded media segments, resulting in stored media segments. The RS-DVR carries out a number of functions and operations to service multiple subscribers and associated subscriber systems, such as various storage device management operations, file structure techniques, assignment of recorded media to subscribers, file system indexing, and supporting shared and per-subscriber content rights.
Method and apparatus for identifying a signal route for delivery of video-on-demand to a subscriber terminal
A set top box includes an interface to a video system configured to deliver data to an individual subscriber or subset of subscribers that are part of a larger group of subscribers, wherein the data is not delivered to the other subscribers of the larger group, the interface adapted to receive communications from one or more modulators of a modulator group of the video system. The set top further includes a decoder configured to extract a modulator group identifier periodically inserted into communications directed to the set top box from the one or more modulators, the modulator group identifier unique to a physical transmission path from a headend of the video system to the one or more modulators. The set top includes a video request interface to the video system, the video request interface configured to output a request for video data including the modulator group identifier.
Methods and systems of recommending media assets to users based on content of other media assets
Methods and systems are described for a media guidance application that provides recommendations to a user viewing a media asset. For example, the media guidance application may provide a recommendation of a media asset based on a user's profile and may modify the user's profile based on the user's actions and keywords in the content of the media asset. For example, the media guidance application may determine whether the media asset is of interest to a user and in response may update the user's profile based on keywords in the media asset. If the media guidance application determines that the media asset is of interest to the user, it may add keywords in the content of the media asset to the user's profile and increase their corresponding weights. Otherwise, the media guidance application may decrease the weights in the user's profile corresponding to keywords in the media asset.
System and method for personalized TV
A Personal TV System receives a plurality of video segments constituting a TV program and information describing each segment, and controls the display of the segments to a viewer in accordance with preferences of the viewer and with the description of each segment. Segments may be omitted or replaced with substitute segments. The viewer may review his preferences and edit or replace them. In a multi-viewer household, the system may prompt a viewer to confirm her preferences. A TV program may contain interactive segments, and when the viewer chooses to interact with a particular segment, the system automatically stores all subsequently received segments for later viewing while the viewer interacts with the selected segment. The system may present TV program choices to the viewer selected and arranged in accordance with her preferences.
System and method for low-latency multimedia streaming
Systems and methods for transmitting a multimedia stream over a communication link on a network are disclosed. The systems and methods adaptively adjust encoding parameters based on monitoring changing conditions of the network. A transmitter includes an adaptive-rate encoder that adaptively adjusts a video encoding bit rate in response to changing conditions of the communication link. The encoder maintains tight rate control by utilizing slice processing and sub-frame rate adaptation, as well as maintaining a headroom between the channel bit rate and the video encoding bit rate. The adaptive-rate encoder also embeds intra-frame constraints in predictive frames traffic in order to reduce latency.
Information processing method, system and electronic device
An information processing method, a system and an electronic device are disclosed. The method includes: acquiring a first motion locus with the first electronic component, where the first motion locus is generated by the first part from a first time instant to a second time instant; and acquiring a second motion locus with the second electronic component, where the second motion locus is generated by the second part from the first time instant to the second time instant. The first electronic device may obtain and execute a first control instruction corresponding to the first motion locus and the second motion locus. With the method and electronic device, an advantage of precisely recognizing a slight local action of the user is achieved.
Method and apparatus for managing a presentation of media content
A system that incorporates teachings of the present disclosure may include, for example, a computer-readable storage medium having computer instructions to present a plurality of unassociated media programs from a single presentation device having overlapping presentation periods, and cause the single presentation device to present a user interface for one of the plurality of unassociated media programs responsive to detecting a request for the user interface. Each of the plurality of unassociated media programs can be viewable only with a viewing apparatus. The viewing apparatus can be configured for viewing one of the unassociated media programs at a time. Other embodiments are disclosed and contemplated.
Tracking user interaction from a receiving device
Measuring and tracking user interaction with a television receiver, such as a set top box or cable box. The television receiver may create and display a matrix code that includes temporal information, user identification information, geographic information, and/or a user selection. The matrix code may be captured by a matrix reading device and transmitted to a monitoring entity. Optionally, the matrix reading device may decode the matrix code and transmit associated data to the monitoring entity. The monitoring entity may use the code or data to track and distinguish between user interactions at different points in time.
Technique for providing a virtual digital video recorder service through a communications network
In response to a request initiated by a user at a user terminal, selected entertainment programming content, when broadcast, is recorded at a location remote from the user terminal. The request is communicated through a communications network, e.g., cable TV network, which is also used for transmission of entertainment programming content to user terminals. The recorded programming content is stored in a storage space at the remote location, which is allocated to the user terminal. In response to a review request from the user terminal, the recorded programming content is retrieved from the storage space allocated thereto, and transmitted to the user terminal through the communications network. The presentation of the recorded programming content may be manipulated by the user to perform rewinding, pausing and fast-forwarding thereon.
Simultaneous encoding and sending of a video data file
A method of encoding and communicating video data comprises encoding a video data file (22) to create an encoded video data file (24) and sending the encoded video data file (24) to a destination (30). A portion of the encoded video data file (24) is sent to the destination (30) at the same time as the video data file (22) is being encoded. New header information for the encoded video data file (44) is sent to the destination (30) when sending the encoded video data file to the destination is complete. The destination (30) can then modify a header (46) of the encoded video data file (44) to include the new header information. This reduces the overall time taken for the video data file to be encoded and sent to the destination (30).
Rate distortion optimization in image and video encoding
An offline quantization module is used to optimize a rate-distortion task. The offline quantization module calculates a quantization kernel for a range of computable block parameters and a range of rate-distortion slope values representing the rate and complexity of a coded video. A quantization kernel is utilized by an encoder application for content-adaptive quantization of transformed coefficients. The quantization kernel includes a block data model, a quality metric model, and an entropy coding model. The quantization kernel is suitable for existing and future coding standards. A rate-distortion slope selection process is performed on a per-frame basis for improved rate-distortion performance. The slope is selected by referring to the block model parameter value within the quantization kernel.
Moving picture encoding device, moving picture encoding method and moving picture encoding program as well as moving picture decoding device, moving picture decoding method and moving picture decoding program
A first vector predictor candidate list generating unit generates a first motion vector predictor candidate list from motion vectors of encoded neighboring blocks to blocks to be encoded. A second vector predictor candidate list generating unit generates a second motion vector predictor candidate list from motion vectors of blocks at the same positions as the blocks to be encoded in an encoded image and neighboring blocks to the blocks at the same positions. A combination determining unit determines whether to generate a third vector predictor candidate list combining the first and second vector predictor candidate lists by comparison of a block size of the blocks to be encoded and a threshold size. A vector predictor candidate list deciding unit generates the third vector predictor candidate list from the first vector predictor candidate list.
Image coding method, image decoding method, image coding apparatus, image decoding apparatus, and image coding and decoding apparatus
An image coding method in which a chroma component and a luma component of an input image including one or more transform blocks are transformed to code the input image. The luma component has the same size as the current transform block. The chroma component is smaller than the current transform block. In the method, when the current transform block has a first minimum size, the chroma component is transformed on a basis of a block resulting from binding a plurality of the chroma blocks to has the same size as the luma block, and when the current transform block has a size other than the first minimum size, a CBF flag indicating whether or not coefficients of the chroma component include a non-zero coefficient is not coded.
System and method for selecting a video encoding format based on feedback data
Methods and systems for processing instructions by an online video game hosting system are provided. One example method includes receiving a control signal for a video game. The control signal is received by a server of the online video game hosting system, and the control signal is transmitted from a client device to the server over a network. Then, executing the online video game by the server while receiving the control signal. The executing causes generation of a sequence of video frames and encoding the sequence of video frames to generate a first compressed sequence of video frames and generate a second compressed sequence of video frames. Transmitting the first compressed sequence of video frames to the client device over the network for decoding by the client device to produce a first decoded sequence of video frames for displaying on a display of the client device. Receiving feedback information from the client device, the feedback information used to determine whether one or more of the first compressed sequence of video frames has been successfully decoded at the client device and modifying the encoding of the sequence of video frames in response to the feedback information. The second compressed sequence of video frames are directed to a storage associated with the server and wherein the quality of the second compressed sequence of video frames is higher than a quality of the first compressed sequence of video frames.
Image coding and decoding method and apparatus considering human visual characteristics
An image coding method and apparatus considering human visual characteristics are provided. The image coding method comprises (a) modeling image quality distribution of an input image in units of scenes such that the quality of an image input in units of scenes is gradually lowered from a region of interest to a background region, (b) determining a quantization parameter of each region constituting one scene according to the result of modeling of image quality distribution, (c) quantizing image data in accordance with the quantization parameter, and (d) coding entropy of the quantized image data.
Methods and systems for estimating entropy
It is a challenge task to conduct Entropy computation on the attributes of packet header in high-speed networks. Motivated by Ashwin Lall et al., we present a stream-based scheme to estimate to the entropy norm based on Count Sketch algorithm. The system is implemented on a NetFPGA-10G platform. It is capable of processing IP packets and computing the entropy in 30 Gbps line rate.
Image coding and decoding method and apparatus considering human visual characteristics
An image coding method and apparatus considering human visual characteristics are provided. The image coding method comprises (a) modeling image quality distribution of an input image in units of scenes such that the quality of an image input in units of scenes is gradually lowered from a region of interest to a background region, (b) determining a quantization parameter of each region constituting one scene according to the result of modeling of image quality distribution, (c) quantizing image data in accordance with the quantization parameter, and (d) coding entropy of the quantized image data.
Video-encoding method and apparatus for same and video-decoding method and apparatus for same using a selective scan mode
Provided are encoding and decoding methods and apparatuses for a video by selectively determining and using a scan mode. The video encoding method includes: generating transformation coefficients by performing transformation based on a transformation unit to encode an image; determining a scan mode, from among a plurality of scan modes, indicating a scanning direction of the generated transformation coefficients, based on characteristics of the transformation coefficients; and determining and outputting an encoding order of the generated transformation coefficients based on the scanning direction of the determined scan mode.
Neighboring block disparity vector derivation in 3D video coding
In one example of the disclosure, a method of coding video data comprises coding video data using texture-first coding, and performing an NBDV derivation process for a block of the video data using a plurality of neighboring blocks. The NBDV derivation process comprises designating a motion vector associated with a neighboring block of the plurality of neighboring blocks coded with a block-based view synthesis prediction (BVSP) mode as an available disparity motion.
Method and apparatus for derivation of spatial motion vector candidate and motion vector prediction candidate
An apparatus and method of deriving a motion vector predictor (MVP) for a current MV of a current block in Inter, Merge or Skip mode are disclosed based on motion vector (MV) attribute search. The system determines first MV attribute search comprising whether a given MV pointing to the target reference picture in the given reference list, or whether the given MV pointing to the target reference picture in other reference list, and determines second MV attribute search comprising whether the given MV pointing to other reference pictures in the given reference list, or whether the given MV pointing to the other reference pictures in the other reference list. The MVP for the current block is then determined from the neighboring blocks according to a search order.
Signaling of layer identifiers for operation points
A device for processing video data receives an indication of a maximum layer identification (ID) value for a bitstream; receives a flag for a first layer with a layer ID value less than the maximum layer ID value; and, based on a value of the flag, determines if the first layer is included in an operation point.
Calibration methods for thick lens model
The thick lens calibration method enables better calibration of complex camera devices such as devices with thick lens systems. The thick lens calibration method includes a two step process of calibrating using the distance between a second nodal point and an image sensor, and calibrating using the distance between the first and second nodal point.
Faster state transitioning for continuous adjustable 3Deeps filter spectacles using multi-layered variable tint materials
An electrically controlled spectacle includes a spectacle frame and optoelectronic lenses housed in the frame. The lenses include a left lens and a right lens, each of the optoelectrical lenses having a plurality of states, wherein the state of the left lens is independent of the state of the right lens. The electrically controlled spectacle also includes a control unit housed in the frame, the control unit being adapted to control the state of each of the lenses independently.
Image display device and image display method
An image display device includes: an image display unit (100) that displays a plurality of parallax images corresponding to the number of view points for stereoscopic viewing on a screen of a display panel (100a); a parallax barrier (101) that is arranged facing the screen, and performs optical separation of the displayed parallax images; and an adaptive pitch adjustment unit (103) that adjusts, for each of regions of the display panel (100a), perform adjustment on a pitch of the parallax barrier (101) corresponding to the region in accordance with an amount of distortion of the display panel (100a) in the region.
3D video transmission on a legacy transport infrastructure
The present disclosure relates to a method for transmitting two consecutive pairs of images. The method may include decimating each image with a ratio of 2, assembling the two decimated images of each pair in a composite image, transmitting the composite images, and reconstructing complete images from the composite images. In decimation, the information removed from the images of the first pair may be kept in the images of the second pair, from the spatial point of view, and the complete images may be reconstructed by de-interlacing processing from the composite images.
Information processing device, information processing method, playing device, playing method, and program
The present invention relating to an information processing device, information processing method, playing device, playing method, and program that enables playing of stereo image (3D image) contents appropriately.In the case that 3D playing using Base view video and D1 view video is instructed, “10000.ilvt (ref_to_D1-B_interleaved_file_name) described in interleaved_file_info ( ) of the PlayList file is specified, and Base view video chunks and D1 view video chunks are read out from an optical disc through a UDF file system. The Base view video chunks and D1 view video chunks that are read out are supplied to a decoder unit and played. The present invention is applicable to a playing device compatible with the BD-ROM standard.
Method and system of lens shading color correction using block matching
A system, article, and method to provide lens shading color correction using block matching.
Projection system, image processing apparatus, and computer-readable storage medium
A projection system includes a plurality of projection units configured to project an image as a whole; a receiver configured to receive an instruction for shifting reference points that define a projection target area onto which the plurality of projection units project the whole image on an occasion of an initial calibration processing; a storage unit configured to store the reference points of the projection target area used in the initial calibration processing; a controller configured to start a recalibration processing in response to an event; a setting unit configured to reset the projection target area based on the reference points stored in the storage unit on an occasion of the recalibration processing; and a correction coefficient calculator configured to calculate correction coefficients for the plurality of projection units based on the projection target area that is reset by the setting unit.
Imaging apparatus, control method of imaging apparatus, and non-transitory storage medium storing control program of imaging apparatus
An imaging apparatus include an imaging processing unit, a dial operation unit, a boundary setting unit, and a control unit. The imaging processing unit acquires image data having a predetermined image effect. The dial operation unit receives a dial operation to set at least one boundary line in the image data. The boundary setting unit sets the boundary line in the image data in response to the dial operation. The control unit controls the imaging processing unit so that image data having different image effects are obtained in the respective partial regions of the image data that are divided by the boundary line set by the boundary setting unit.
Facilitating personal assistance for curation of multimedia and generation of stories at computing devices
A mechanism is described for facilitating personal assistance for curation of multimedia and generation of stories at computing devices according to one embodiment. A method of embodiments, as described herein, includes receiving, by one or more capturing/sensing components at a computing device, one or more media items relating to an event, and capturing a theme from the one or more media items, where the theme is captured based on at least one of activities, textual content, and scenes associated with the event. The method may further include forming a plurality of story elements to generate a story relating to the event, where the plurality of story elements are formed based on at least one of one or more characters, the theme associated with the event, and one or more emotions associated with the one or more characters, wherein the story is presented, via one or more display devices, to one or more users having access to the one or more display devices.
Monitoring camera device, monitoring system having monitoring camera device, mask processing method, and non-transitory computer-readable recording medium which stores mask processing program
The monitoring camera device has: an image capturing unit which captures an image of an object and generates a video image; a mask region storage unit which stores a mask region; a mask execution region setting unit which, when a predetermined number or more mask regions are included in an image capturing range, joins a plurality of mask regions to be selected based on a closeness evaluation value which represents closeness of the mask regions and generates an enlarged mask region, and sets as a mask execution region the plurality of mask regions which includes the enlarged mask region in the image capturing range; and a mask processing unit which performs mask processing on the mask execution region of the video image.
Pre-event repository associated with individual privacy and public safety protection via double encrypted lock box
A method substantially as shown and described the detailed description and/or drawings and/or elsewhere herein. A circuitry substantially as shown and described the detailed description and/or drawings and/or elsewhere herein.
Media stream from sender seen on receiver side before confirming receipt of media stream
The present disclosure relates to electronic communication devices, and more specifically to streaming media between the electronic communication devices. The present disclosure relates to a method for setting up a media stream connection between a sending device 100, 110 and at least one receiving device 200, 210. The method comprises sending a session initiation message S10 to the at least one receiving device, sending a request S20 for a list of IP-addresses of the at least one receiving device and receiving S30 the list of IP-addresses from the at least one receiving device. The method further comprises setting up uni-directional or bi-directional connection between the sending device 100, 110 and the at least one receiving device 200, 210 by using the received list of IP-addresses and sending the media stream S50 via the uni-directional or bi-directional connection to the at least one receiving device.
Coordinating image sensing with motion
A method may include generating one or more control signals configured to control a velocity of an image sensing system based on a rate of recording pixels frames in the image sensing system. In some embodiments, the method may alternatively or additionally include generating one or more control signals configured to control the rate of recording in the image sensing system based on the velocity of the image sensing system. In some embodiments, a portion of image pixel data for a pixel frame may be output for transmission to a remote receiver. In some embodiments, the output data may include a recently recorded image data pixel for those surface resolution cells for which there is no currently stored reference image data pixel of a previously recorded pixel frame that is the same or is different by less than a threshold amount as the recently recorded image data pixel.
Recording and playback system based on multimedia content fingerprints
A method for recording media content based on media content fingerprints is described. A media device records content received in a content stream from a scheduled start time of a media content to a scheduled end time of the media content to create a content recording. The media device derives one or more fingerprints from the content recording. A fingerprint database is queried with the one or more fingerprints to determine that a first portion of the content recording comprises an advertisement and a second portion of the content recording comprises the media content. In response to a request to play the content recording, starting playback of the content recording at the beginning of the second portion of the content recording.
Television receiver and video display device
According to one embodiment, television receiver includes display and housing. The display includes screen, first and second ends, and first corner. First end extends along first direction. Second end extends along second direction. The housing includes first and second members, and opening. The first member includes first and second walls. First wall covers the first end from front of the screen. Second wall extends from circumference of the first wall towards back of the screen and covers the first end. The second member includes third and fourth walls. Third wall covers the second end from the front. Fourth wall extends from circumference of the third wall towards the back and covers the second end. Part at which the first and the second members are abutted is configured straight and intersects the first and second directions between second corner and position away from third corner in direction along first/second direction.
Solid state image sensor, method for driving a solid state image sensor, imaging apparatus, and electronic device
A solid state image sensor includes a pixel array, as well as charge-to-voltage converters, reset gates, and amplifiers each shared by a plurality of pixels in the array. The voltage level of the reset gate power supply is set higher than the voltage level of the amplifier power supply. Additionally, charge overflowing from photodetectors in the pixels may be discarded into the charge-to-voltage converters. The image sensor may also include a row scanner configured such that, while scanning a row in the pixel array to read out signals therefrom, the row scanner resets the charge in the photodetectors of the pixels sharing a charge-to-voltage converter with pixels on the readout row. The charge reset is conducted simultaneously with or prior to reading out the signals from the pixels on the readout row.
Ramp voltage generator, image sensing device including the same and method for driving the image sensing device
A ramp voltage generator may include: a correction block suitable for generating a slope correction signal for first and second periods based on a period signal for distinguishing the periods; a common bias voltage generation block suitable for generating a common bias voltage based on the slope correction signal and a source bias voltage; and a first ramp voltage generation block suitable for generating a first ramp voltage having a predetermined slope during the first period based on the common bias voltage and a first ramp group control signal; and a second ramp voltage generation block suitable for generating ramp voltages having the predetermined slope during the second period based on the common bias voltage and a second ramp group control signal.
Image sensor and image capturing apparatus having an arrangement of pixels and well contacts
An image sensor includes an image sensing plane in which a plurality of pixels are two-dimensionally arranged and at least a portion of a region thereof has a curved shape, and a plurality of well contacts that fix a well potential and are connected to a portion of pixels from among the plurality of pixels. The well contacts are arranged such that an arrangement density thereof in the image sensing plane is different in each region according to the curved shape of the image sensing plane.
Flare-reducing imaging system and associated image sensor
An image sensor capable of capturing an image formed by a lens includes a substrate and a bonding wire. The substrate has a pixel array and a bonding pad on a top surface of the substrate between the pixel array and a substrate edge. The bonding wire is electrically connected to the bonding pad and has a region forming a non-zero angle with respect to the substrate top surface. The non-zero angle is in at least one of a lower and an upper angular range for minimizing reflection of incident light on the region from reaching the image sensor. The lower angular range is selected such that the region reflects the incident light away from the pixel array toward a plane including the lens. The upper angular range is selected such that the region reflects the incident light to a clearance between the bonding pad and the pixel array.
Gaze tracking variations using selective illumination
Aspects of the present disclosure relate to eye tracking systems and methods which track eyes by illuminating the eyes using a light source and detecting the eye illuminations using a sensor. Implementations of the present disclosure may utilize wide angle lighting via a plurality of individual light sources which are each oriented in different orientations. A wide area may be illuminated by the different light sources, and these light sources may be selectively turned on and off based on a current location of a user.
12G-SDI switcher with integrated processing of quad-link 3G-SDI
In the broadcast video environment, it may sometimes be necessary to switch between 12G-SDI, which is a 12 Gbps interface on a single link, and quad-link 3G-SDI, which uses four 3 Gbps physical links. A routing switcher is disclosed herein that routes 12G-SDI signals between input ports and output ports. However, the apparatus also has the capability to receive quad-link 3G-SDI signals at its input ports and internally convert from quad-link 3G-SDI to 12G-SDI. The apparatus also has the capability to internally convert a 12G-SDI signal into a quad-link 3G-SDI signal for output on its output ports. Additional processing, such as link healing and/or deskewing of incoming quad-link 3G-SDI signals may be performed.
Method and an apparatus for generating an approximate nearest neighbor field (ANNF) for images and video sequences
An algorithm for performing super-resolution splits an input image or video into patches and relies on image self-similarity, wherein similar patches are searched in different downscaled versions of an image, using Approximate Nearest-Neighbor Fields (ANNF). The goal of ANNF is to locate with a minimal number of search iterations for each patch of a source image the k most similar patches in a downscaled version of the source image or video. A method for generating an ANNF for images of an input video comprises generating a plurality of downscaled versions of the images of the input video at different scales, generating an Inverse ANNF (IANNF) for the input video by finding for each patch of the downscaled images similar patches in the input video, generating an ANNF for the input video by reversing the IANNF, and filling gaps in the ANNF by random search.
Automatic orientation of a camera in response to sensor data
Movements of a pan and tilt camera may be controlled by reorienting the camera in response to discrete information obtained by the camera from a related but independent device such as a sensor so that the camera can capture video of events of potential interest to a user. Such sensors can respond to multiple stimuli such as, for example, sound, motion, light, pressure, humidity, and/or the like. The cameras can include, for example, pan and tilt and zoom (PTZ) cameras that can be used in monitoring and surveillance operations. For example, the pan and tilt camera can be used as a surveillance camera at a home, business, vacation, or any other property.
Image pickup apparatus having live view function, and method of controlling the same
An exposure control technique that makes it possible, even when photographing is performed in an enlarged display state of live view, to obtain an image photographed with correct exposure, by causing a setting shifting function to operate. When an enlargement instruction is received from a user when images acquired by an image pickup device are being sequentially displayed on an image display section, a camera control circuit causes an enlarged image corresponding to a partial area of an object area to be displayed on the image display section. If an exposure is to be changed when the enlarged image is being displayed, the camera control circuit changes the exposure, based on a result of photometry of the image acquired by the image pickup device before the enlarged image is displayed on the image display section.
Dual camera magnet arrangement
Some embodiments include a camera system having a first camera unit and a second camera unit. The first camera unit includes an autofocus actuator. The autofocus actuator includes a first plurality of magnets for autofocus motion control of components of a first optical package. The first plurality of magnets is positioned to generate magnetic fields aligned in parallel with a first magnetic axis at a right angle to the optical axis of the first optical package. The second camera unit includes an optical image stabilization and autofocus actuator. The optical image stabilization and autofocus actuator includes a second plurality of magnets positioned to generate magnetic fields aligned along a second magnet axis at 45-degrees to the first magnetic axis. The second camera unit includes a third plurality of magnets positioned to generate magnetic fields aligned along a third magnetic axis at 135-degrees to the first magnetic axis.
Image processing apparatus and method for operating image processing apparatus
An image processing apparatus includes a first input section configured to receive image data including images in a forward field of view and a lateral field of view; an enhancement processing section configured to enhance edges of images corresponding to the image data received; and a boundary correction section provided on a downstream side of the enhancement processing section and configured to perform a correction process non-commutative with an edge enhancement process, the correction process being performed on a boundary region between a forward field of view and a lateral field of view using the image data subjected to edge enhancement.
Device and method for photo and video capture
A single user input element in an image capture device is used for both photo and video capture. Based on a first user interface activity, a timing reference is engaged at a first reference time. In a first case, photo capture is performed. In the first case, a second reference time is based on a second user interface activity, and the timing reference indicates a passage of time between the two reference times is shorter than a particular time interval. In a second case, video capture is performed. In the second case, the timing reference indicates a passage of time since the first reference time is equal to or longer than the particular time interval. Video capture is stopped based on a subsequent user interface activity. The user interface activities may comprise detecting actions based on the same type of physical manipulation of the single user input.
Image capture apparatus and method for controlling the same
The accuracy of focus detection of a phase-difference detection type using a signal obtained from a focus detection pixel is improved. A defocus amount of an imaging optical system is computed based on an image signal obtained from an image sensor. Meanwhile, an evaluation value that is based on contrast information of the image signal is computed, and it is determined based on the evaluation value whether or not to consider a defocus amount computed in the past. If it is determined to consider the defocus amount computed in the past, a final defocus amount is computed based on a plurality of defocus amounts including the defocus amount computed in the past.
Display device configured as an illumination source
The disclosed technology relates to an electronic device configured to use the device's own display to provide an illumination source for front-facing image sensors and to a method of using the same. An electronic device for capturing a digital image using a front-facing image sensor and a digital display device includes a command input module configured to receive a command to capture the digital image, an illumination adjustment module configured to adjust the display device to an imaging illumination condition in response to the command, and a front-facing image sensor module configured capture the digital image using the front-facing image sensor under the predetermined illumination condition.
Peer to peer lighting communication
A camera flash device, method and computer program for communicating between a primary camera flash device and other camera flash devices comprising: detecting orientation and position of the camera flash device and range of a primary subject in focus on the camera flash device; locating other networkable camera flash devices for communication; receiving subject data for a real time image of a subject from one or more of the located networkable camera flash devices; determining from subject data which networkable camera flash devices are pointing at the primary subject; determining two or more camera flash devices for use in a picture; and synchronizing determined two or more camera flash devices for flash operation when one or more of the camera flash devices takes a picture of the primary subject.
Rotation detecting device, camera equipped with the device, and imaging apparatus equipped with the camera
A camera includes a camera-unit rotatably held which can change its photographing direction by rotation, and a rotation detecting device for detecting the rotation. The rotation detecting device includes: a detection part having a lever which self-returns to a reference position; a cam part, with which the lever part is contact, including a cut-out part in a part thereof; and a rotary body rotatable together with the camera-unit. In one-directional rotation about a shaft, the rotary body transitions at least among a first state of the lever not facing the cut-out part, a second state of the lever facing the cut-out part at the reference position, and a third state of the lever not facing the cut-out part. The detection part detects which one of the first, second, and third states the rotary body is in, and determines the photographing direction of the camera-unit based on the detected state.
Display device with deformable cover member
The present invention provides a display device which has a display unit on a main body, comprising a cover member that can be deformed into a first shape for covering the display unit and a second shape for forming a grip in order to solve the problems in the conventional cameras. The problem is such that the size of the camera becomes large by the size of the grip, which impairs portability of the camera because the conventional camera provides a fixed grip on the camera body on which a display unit with a large screen is mounted. In addition, another conventional camera has a space for accommodating the cover members within the grip, so that the size of the grip becomes accordingly large and thus the camera itself becomes large.
Interchangeable mounting assembly
A platform for interchangeably mounting a payload to a base support is provided. In one aspect, the platform comprises: a support assembly configured to be releasably coupled to a payload via a first coupling and configured to control a spatial disposition of the payload; and a mounting assembly configured to be releasably coupled via a second coupling to a plurality of types of base supports selected from at least two of the following: an aerial vehicle, a handheld support, or a base adapter mounted onto a movable object.
Liquid crystal optical device, solid state imaging device, portable information terminal, and display device
A liquid crystal optical device includes: a first electrode unit including a first substrate transparent to light, a light-transmitting layer formed on the first substrate, and a first electrode formed on the light-transmitting layer and being transparent to light, the light-transmitting layer including recesses formed on a surface facing the first electrode, arranged in a first direction, and extending in a second direction; a second electrode unit including a second substrate, the second substrate being transparent to light, and two second electrodes formed on the second substrate, the second electrodes being arranged in the second direction and extending along the first direction; a liquid crystal layer located between the first and second electrode units; a first polarizing plate located on an opposite side of the second electrode unit from the liquid crystal layer; and a drive unit that applies voltages to the first and second electrodes.
Networked digital imaging customization
A geographically remote computing device transmits an image to a central computing device. The geographically remote computing device also communicates specifications of a substrate or substrates to be imaged to the central computing device. The central computing device selects a geographically remote fulfillment printer. A local, but geographically diverse distribution system is available according to the invention. The central computing device chooses the geographically remote fulfillment printer as a function of factors such as the selected image and substrate, printer capabilities, and the consumer's location. Image quality and consistency is maintained by the central computer selecting an appropriate geographically remote computing device and providing printer the appropriate instructions, rather than the instructions for printing being determined locally at the printer.
Image processing device, article processing apparatus, and image processing method
An image processing device that acquires an image from an object includes an illuminator having a plurality of light sources, a sensor unit, and a controller. The plurality of light sources irradiates light of respectively different colors onto an object. The sensor unit outputs luminance data for one line obtained by photoelectrically converting light is reflected from the object of that was irradiated by the illuminator onto the object. The controller acquires a random number, and acquires luminance data for one line output by the sensor unit, while causing one light source selected from the plurality of light sources based on the acquired random number to emit light.
Replaceable item authentication
A replaceable item for a host device, such as a print substance cartridge for a printing device, stores multiple identities. For each identity, the replaceable item stores multiple authentication values, or passwords. The replaceable item selects an identity, and in response to a request for an authentication value from the host device, sends the requested authentication value for the selected identity.
Function executing device with two types of wireless communication interfaces
In a case where a first information including an execution request of a specific function via a first type of interface is received, a function executing device may execute a change process for changing an interface for communicating with a terminal device from the first type of interface to a second type of interface in a case where a state of the function executing device is determined as a non-error state. The function executing device may not execute the change process in a case where the state of the function executing device is determined as an error state. The specific function may include a communication process for communicating object data with the terminal device. The function executing device may execute the specific function including the communication process via the second type of interface in a case where the change process is being executed.
Image processing apparatus communicable with mobile information terminal
An image processing apparatus includes a job processing portion, a first communication portion, a second communication portion, a job control portion. In the image processing apparatus, the first communication portion performs first wireless communication being proximity-type wireless communication. The second communication portion performs second wireless communication whose communicable distance is longer than that of the first wireless communication and whose communication speed is faster than that of the first wireless communication. After the first communication portion automatically establishes communication connection between the first communication portion and a transmission source of the signal through the first wireless communication, the first communication portion hands over the communication connection to second wireless communication. The image processing apparatus transmits information of a settable condition to a mobile information terminal through the second communication portion, and causes the job processing portion to execute a job in according to a job execution request.
Image processing apparatus, a method for performing specific process on an image processing apparatus, and a computer-readable storage medium for a program to be executed by an image processing apparatus
An image processing apparatus includes a processor having a plurality of cores, each having different specifications. The image processing apparatus further includes a first estimator that estimates a processing capability of each of the plurality of cores, a second estimator that estimates, based on the processing capability of each of the plurality of cores, a required time for each of the plurality of cores to perform a specific process, and a controller. The plurality of cores comprises one or more candidate cores. The required time for each of the one or more candidate cores is equal to or less than a threshold. The controller controls one of the one or more candidate cores to perform the specific process. The required time of the candidate core that performs the specific process is the longest among the one or more candidate cores.
A scanner is disclosed. The scanner has a platen with at least one edge of the platen uncovered.
Image processing apparatus, method, and storage medium storing program
Image data is processed using a filter configured to compensate for degradation in an image that occurs when the image is printed by a printing unit. The degree of compensation for the degradation in the image by the filter depends on a printing direction on a printing medium by the printing unit.
Operation console, electronic device and image processing apparatus provided with the operation console, and method of displaying information on the operation console
On a touch-panel display of an image forming apparatus, which is divided to five areas, that is, a system area, a function selection area, a preview area, an action panel area and a task trigger area, pieces of information are displayed. Even if an operational mode is switched, the same or similar information is always displayed in the area arranged at the same position. In the task trigger area, software buttons operated by the user for actually operating the image forming apparatus are displayed.
Image reading device including reading unit coupled with flat cable
An image reading device includes a housing, a reading unit, a flat cable, and a support member. The reading unit is movably provided in the housing and configured to reciprocally move from a start position to an end position in a reading range. One end of the flat cable is coupled with the reading unit and a predetermined portion thereof on the other end side is fixed to the housing. The flat cable is stored in a bent state in the housing. The support member is provided in the reading unit and configured to support the flat cable and displace, in response to a movement position of the reading unit, a support point of the flat cable in an up-down direction with respect to a coupling portion coupling the one end of the flat cable with the reading unit.
Document handler having integrated platen and fully internal CVT path
A detachable document handler (having an outer casing) has a transparent platen as the casing bottom, and a document tray as the casing top. A moveable internal scanner is located within the outer casing, and is positioned to move past the transparent platen within the outer casing. The moveable internal scanner is in a location within the outer casing to optically scan items external to the outer casing through the transparent platen. A sheet feeder system are also within the outer casing. The sheet feeder system (within the outer casing) is positioned adjacent the document tray in a location to feed sheets from the document tray, internally within the outer casing, past the moveable internal scanner, and back to the document tray. A transparent member within the outer casing is located between the sheet feeder system and the moveable internal scanner.
Information processing apparatus, information processing method, and non-transitory computer readable medium
An information processing apparatus includes a display unit, a changing unit, an image display unit, and an update unit. The display unit displays a first display area and a second display area. The second display area is an area in which a display element representing a function is disposed. The changing unit changes a setting value of the function to a different setting value in accordance with a received instruction to change a setting. When the setting value of the function is changed, the image display unit displays an image representing the function whose setting value is changed, in the first display area. While the image in the first display area remains to be displayed, the update unit changes the display of the second display area in which information about the function is displayed, in response to a received instruction to update the display.
Non-transitory computer readable medium, image processing apparatus, and image processing method
A non-transitory computer readable medium stores a program causing a computer to execute a process for image processing. The process includes performing preview display processing on a piece of content of document-image information generated by optically scanning a document by using one reading setting, the preview display processing being performed by using multiple transmission settings that are different from the one reading setting; and generating new image information in a case where one of pieces of content of the document-image information each of which results from the preview display processing performed by using a corresponding one of the multiple transmission settings is selected, the new image information being generated from the document-image information by using one of the transmission settings that corresponds to the selected piece of content.
Systems and methods for allocating and pricing alternative network access resources with reserve prices
A method for allocating and pricing access to alternative access networks may include: inputting, by one or more parties, needs for alternative network access and representative values for satisfying the needs; setting, by providers of alternative network access, reserve prices for access to each of access point in the alternative network; generating a solution based on a mixed integer program to maximize value created by allocation of alternative network access; and allocating alternative network access to the one or more parties based on the mixed integer program solution.
Providing a proxy server feature at an endpoint
Providing a proxy server feature includes initiating the proxy server feature at an endpoint of a number of endpoints. Registration information comprising addresses for the endpoints is received and then stored in a routing table at the endpoint. The endpoint locates a callee endpoint using the routing table in order to establish a session with the callee endpoint.
Teleconferencing using monophonic audio mixed with positional metadata
In some embodiments, a method for preparing monophonic audio for transmission to a node of a teleconferencing system, including steps of generating a monophonic mixed audio signal, including by a mixing a metadata signal (e.g., a tone) with monophonic audio indicative of speech by a currently dominant participant in a teleconference, and encoding the mixed audio signal for transmission, where the metadata signal is indicative of an apparent source position for the currently dominant conference participant. Other embodiments include steps of decoding such a transmitted encoded signal to determine the monophonic mixed audio signal, identifying the metadata signal, and determining the apparent source position corresponding to the currently dominant participant from the metadata signal. Other aspects are systems configured to perform any embodiment of the method or steps thereof.
System and method for case-based routing for a contact
A system and method for case-based routing as opposed to atomic interaction routing. A processor opens a case in a customer database. The case is associated with a workflow that has steps anticipated to be executed for the case. The processor identifies first and second steps of the workflow, and further identifies an agent with skills for handling the first and second steps. The processor generates a task for handling at least the first step of the workflow, and transmits instructions to route the task to the identified agent.
Best time to communicate with parties having multiple contacts
Technologies are disclosed for determining a best time to contact a party over a plurality of contact periods of time to achieve at least one of a desired outcome and a desired result. In various embodiments, the party has multiple contact types that can be utilized to contact the party. Accordingly, an optimal contact type for the party for each contact period is selected that identifies the contact type with a probability having the highest likelihood of achieving at least one of the desired outcome and the desired result by utilizing the contact type to contact the party during the contact period. A best time to contact the party is then identified as one of the contact periods based on the optimal contact types selected for the party for each contact period and associated probabilities.
Systems and methods for lead routing
Systems, methods, apparatuses, and computer-readable media for managing and evaluating leads from incoming calls are provided. A first inbound call from a first caller may be received. A first set of information identifying characteristics of the first inbound call may be processed. A second set of information identifying characteristics of the first inbound call may be determined based on the first set of information. A first category may be matched to the first inbound call. A first receiver may be determined. A second inbound call from a second caller may be received. A third set of information identifying characteristics of the second inbound call may be processed. A fourth set of information identifying characteristics of the second inbound call may be determined based on the third set of information. A second category may be matched to the second inbound call. A second receiver may be determined.
Technique for obtaining caller-originated alert signals in IP-based communication sessions
A technique for obtaining caller-originated alert signals in IP-based communication sessions is disclosed. According to one embodiment, the technique may be realized as a method comprising the steps of: receiving, from a first user equipment and via a first communication channel, a request to initiate a communication session, the request being received at a second user equipment; in response to the request, causing a phonepage server to transmit, via a second communication channel, a caller-originated alert to the second user equipment; and rendering the caller-originated alert to alert a user associated with the second user equipment.
Networking systems, protocols, and methods for controlling target devices
Systems and methods are provided for controlling electric and electronic devices. The devices may communicate with each other in a many-to-many, peer-to-peer network to provide control functionality without the need for a central controller. Device-to-device control messages may be implemented over short range, wireless broadcast messages.
Methods, systems, and techniques for dual-mode communication are provided. Example embodiments provide a an enhanced mobile device that includes a CPU, a low latency transceiver, and a high latency transceiver. The enhanced mobile device is in communication with a console via both the low latency transceiver and the high latency transceiver. The console also includes a CPU, a low latency transceiver, and a high latency transceiver. In some embodiments, the low latency communication channel is used to transmit control messages to an entertainment console whereas the high latency communication channel is used to communicate data between the mobile device and the entertainment console. The dual-mode communication may be used in different scenarios, including entertainment applications, such as with dual-mode eyeglasses.
Cease and desist call flagging
Embodiments of the invention relate to systems, methods, and computer program products for providing cease and desist call flagging. The system, method, and computer program product are configured to provide a user interface for reporting cease and desist requests associated with a plurality of customers; receive, via user input into the user interface, a cease and desist request associated with a customer having at least one account maintained by an entity, wherein the cease and desist request specifies at least one rule to be implemented when contacting the customer; and automatically terminate contact to the customer on behalf of the entity based at least partially on the at least one rule specified in the cease and desist request.
Method and user terminal for performing call using voice recognition
A method and a user terminal for performing a call using voice recognition are disclosed. The method and the user terminal include receiving a call request, obtaining a voice signal from a user in response to the call request, and determining whether the obtained voice signal is a call reception command to receive the call. The method and the user terminal perform the call in a handsfree mode based on the call request in response to the voice signal being the call reception command.
Dual connector coupling for accessory device and electronic device using the same
An electronic device includes an analog connector and a digital connector. The analog connector has one or more analog signal contacts and at least one other contact. A signal detector detects signals at the other contact. A switch is coupled to the other contact to, where analog signals are at the other contact, to cause the switch to transition a connection to other contact from a common node of the device to a signal node of the device, thereby allowing a user to use either a four-wire accessory device or five-wire accessory device with a four-wire analog connector.
Subframe format indication field
Certain aspects of the present disclosure provide methods and apparatus for indicating a subframe format. For example, the apparatus may generally include a processing system configured to generate a subframe of a data unit, the subframe comprising a first field that indicates a presence or absence of at least one of a source address (SA) or destination address (DA) in the subframe. The apparatus may also include a transmitter configured to transmit the subframe to another apparatus using frame aggregation.
Alignment system including remote server for point-to-point alignment of spaced apart first and second antennas and related methods
An alignment system for point-to-point alignment of spaced apart first and second antennas may include a remote server configured to determine respective target azimuth and tilt data for each of the first and second spaced apart antennas based upon actual position data of the first and second spaced apart antennas. The alignment system may also include an end-point alignment kit that may include a technician tool, and an antenna alignment device to be temporarily mounted to a given antenna during alignment. The antenna alignment device may be configured to determine the actual position data and actual azimuth and tilt data for the given antenna. The technician tool may be configured to communicate the actual position data for the given antenna to the remote server, receive the target azimuth and tilt data from the remote server, and display the actual azimuth and tilt data for the given antenna.
Server apparatus and information processing apparatus
An apparatus includes a receiving unit, a determining unit, and a reply unit. The receiving unit is configured to receive a request for service information from an information processing apparatus via a network. The determining unit is configured to determine the service information based on the request, where the service information includes information associated with accessing a service and display object information on a display object corresponding to the service. The reply unit is configured to send the service information to the information processing apparatus.
Application platform operable on network node
A formula-driven programming-environment is described, which may be used to provide an environment for applications to operate within a network node or other computing device. In one example, statements of a program may be interpreted to thereby execute formula-style commands within an address space defined and constrained in a memory device by the integrated development environment. The commands may obtain data, assign values to variables and access data from other node(s) by the interpretation of statements in the program and communicating over a network. The communicating may include queuing a message for transmission by the formula-driven programming-environment. The commands may provide named access or relative access to data in response to the interpretation of statements in the program. The commands may communicate with at least one application located on a remote computing device in response to the interpretation of statements in the program.
System and method for cache management
A method, computer program product, and computing system for processing one or more data chunks on a host server. The one or more data chunks are destined for storage within a portion of a data array coupled to the host server. The one or more data chunks are stored within a host cache system included within the host server. Storage criteria concerning the portion of a data array is reviewed. The storage criteria includes an array bandwidth allotment that defines a maximum bandwidth between the host server and the portion of the data array. The one or more data chunks are written to the portion of the data array based, at least in part, upon the storage criteria.
Method, system and server device for transmitting a digital resource in a client-server communication system
The present invention relates to transmitting a digital resource in a client-server communication system. A disclosed method comprises at a main server device: receiving a request for a main resource from a client device; determining at least one missing secondary resource, wherein the at least one missing secondary resource is at least one resource associated with said requested main resource and missing at the main server device; and requesting a secondary server device to push the at least one missing secondary resource to the client device. Thanks to the push initiated by the main server device, the secondary resources required by the main resource become available at the client device before the latter discovers that they are required to exploit or display the main resource.
Method and apparatus for passively monitoring online video viewing and viewer behavior
Various user behaviors are passively monitored and recorded when a user/viewer interacts with a network video player, e.g. a web video player, while watching an online video clip. For one embodiment, a data collection agent (DCA) is loaded to the player and/or to a web page that displays the video clip. The DCA passively collects detailed viewing and behavior information without requiring any specific input or actions on the part of the user. Indications of user preferences are inferred by user actions leading up to viewing the video, while viewing the video, and just after and still related to viewing the video. The DCA periodically sends this information to a central server where it is stored in a central database and where it is used to determine preference similarities among different users. Recorded user preference information may also be used to rate a video itself.
Location based content aggregation and distribution systems and methods
In one embodiment, a method includes receiving a content posting from a device associated with a first user, the content posting including data representative of a content instance and an associated geographic location; determining that a second user is associated with the geographic location; and enabling communications associated with the content instance between a client device associated with the first user and a client device associated with the second user.
Migration of network connection under mobility
The present disclosure relates generally to the field of migration (e.g., seamless migration) of a network connection under mobility (e.g., host mobility). In various examples, migration (e.g., seamless migration) of a network connection under mobility (e.g., host mobility) may be implemented in the form of methods and/or algorithms.
Method and apparatus for collecting and disseminating information over a computer network
The apparatus comprises at least one database for storing digital information associated with at least a first user and a second user, at least one links module for the first user and for the second user, at least one manipulations module and at least one display device for respectively displaying at least said linked digital information wherein said linked digital information associated with said first user is automatically updated on at least said display device of said second user when that information is manipulated, and wherein said linked digital information associated with said second user is automatically updated on at least said display device of said first user when that information is manipulated.
Obtaining dispersed storage network system registry information
A method begins by a processing module of a dispersed storage network (DSN) obtaining an identifier (ID) piece of multiple ID pieces regarding a registry fragment of a distributed DSN registry. The method continues with the processing module performing a function on the ID piece to obtain a registry fragment alias, wherein performance of the function on the multiple ID pieces would produce multiple registry fragment aliases. The method continues with the processing module determining DSN addressing information for the registry fragment based on the registry fragment alias, wherein the DSN addressing information is determinable from any one of the multiple registry fragment aliases. The method continues with the processing module receiving a response regarding the registry fragment when a local copy of the registry fragment is not up-to-date.
Blended storage allocation on a storage agent
Systems and methods are disclosed to display a blended set of thumbnail images. A first subset of thumbnail images may include one or more thumbnail images that correspond with images stored at a local storage location. A second subset of thumbnail images may include one or more thumbnail images that correspond with images stored at a remote storage location. A request may be received to display a first image corresponding with the first subset of thumbnail images; whereupon the first image may be displayed. A request may be received to display a second image corresponding with the second image of the second subset of thumbnail images. The second thumbnail image may be displayed while the second image is requested. The second image may then be displayed in place of the second thumbnail image.
Information processing method and electronic device
An information processing method applied to a first electronic device is provided. The first electronic device is capable of running multiple applications including a first application, and is capable of establishing a connection with and transmitting data to a second electronic device by using the first application. The method includes: when the first application runs in foreground and one or more applications including the second application run in background, receiving a first predetermined operation performed on the first application by a user; in response to the first predetermined operation, controlling a display unit of the first electronic device to display a first interface of the second application; receiving a second predetermined operation performed on the first interface by the user; and in response to the second predetermined operation, determining first data which will be transmitted to the second electronic device. A corresponding first electronic device is further provided.
Apparatus and method for supporting selection of an image to be posted on a website
A terminal apparatus includes an information receiver that receives, from a server apparatus, first webpage information, which enables a first user to specify an image to be posted on a first website, a storage that stores the received first webpage information, and an information processor that reads the first webpage information from the storage and that displays the first webpage information on a screen. In the screen, among a plurality of images, which are candidates for the image to be posted on the first website, an image selected on the basis of an image used in a second website is displayed at a position closer to the center of the screen than positions of other images are or displayed in a mode different from a mode in which the other images are displayed.
Method for transreceiving media content and device for transreceiving using same
Provided are a method and device for transmitting/receiving media content via internet. The method includes: configuring the media content with a plurality of representations; dividing the configured representation into a plurality segments; aligning subsegments in the segment; and transmitting one of the representations, wherein the subsegments are aligned to allow the earliest presentation time of the kth subsegment in the first representation to be greater than the latest presentation time of the k−1th subsegment in the second representation among the representations.
Attribute scoping and hierarchy
Downloadable pluggable services and methods of distributing the same are described. The downloadable pluggable services may correspond to communication services that can be downloaded to upgrade a communication system. The downloadable pluggable services may include a number of component parts that can be distributed among various servers in the communication system being upgraded along with instructions that enable the component parts to instruct each server in the communication system to operate in a coordinated fashion so as to provide the downloaded service.
Content delivery network video content invalidation through adaptive bitrate manifest manipulation
A method for invalidating content segments of a bitstream. The method comprises a step of delivering a manifest file from an origin server to a content delivery network. The manifest file may have a time-to-live value and may be redelivered based on the time-to-live value. The method comprises a step of delivering one or more content segments from the origin server to the content delivery network. The manifest file may contain pointers to the content segments. The method comprises a step of modifying the manifest file at the origin server to include invalidation information based on an input signal. The method comprises a step of invalidating the content segments throughout the content delivery network based on the invalidation information.
Method and apparatus for sharing presentation data and annotation
A method and apparatus for sharing presentation data, interactions, and annotation information between devices. The method includes: converting the presentation data into at least one image; transmitting the at least one image to the second device; displaying an image from among the at least one image on a screen of the first device, and transmitting image identification information about the displayed image to the second device; adding annotation data to the displayed image, based on a user input; and transmitting annotation information about the annotation data to the second device. The second device displays an image corresponding to the image identification information on a screen of the second device based on the image identification information, and the second device displays the annotation information on the image displayed on the screen of the second device the annotation information.
Presenter device as web proxy for collaborative sharing of web content having presenter context
In one embodiment, a method comprises a presenter device controlling a web-based collaboration session with session participants via a collaboration server; receiving by the presenter device a Hypertext Transfer Protocol (HTTP) response from a web server, the HTTP response dynamically generated by the web server according to a presenter context associated with a presenter using the presenter device; the presenter device delegating the presenter context based on sending the HTTP response to the collaboration server for presentation of the HTTP response to the at least one session participant, enabling the at least one session participant to independently control viewing of at least a portion of the HTTP response according to the presenter context.
System and method for providing enterprise voice call continuity
An improved system and method are disclosed for providing voice call continuity in an enterprise network. For example, an enterprise public branch exchange (PBX) may be configured with a pilot number that is used to provide VCC services when called by a client. Digit collection via DMTF signaling or other means may be used to collect destination information from the client. The enterprise network may use the collected digits to establish a communication session with another device that corresponds to the destination information.
Media proxy that transparently proxies network-based media sharing protocol between guest device and an associated one of a plurality of media devices
A media system includes a computer network, a media device supporting a network-based media sharing protocol, a plurality of output devices located at a plurality of physical locations within a hospitality establishment, and a system controller. In response to a first event, the system controller assigns the media device to a particular guest device by reconfiguring one or more components of the computer network to enable the particular guest device to utilize the network-based media sharing protocol to share media over the computer network with the media device, and commands an output device located at a physical location associated with the particular guest device to play media corresponding to the media signal outputted by the media device on the output port. In response to a second event, the system controller un-assigns the media device from the particular guest device and commands the output device to stop playing the media.
Registration method for managing NAT shutdown
The present invention provides a registration method for managing NAT shutdown. In Internet communication field, a user must perform registrations intermittently to a server through NAT, and increase the time interval of registration step by step. But NAT itself will shutdown if no packet is passed through for a long period. The registration method of the present invention is to adjust the time interval of registration step by step so that the time interval of registration is slightly less than the shutdown time of NAT, and then fix the time interval of registration to assure that all of the Invite packet can pass through without blocking up by the shutdown of NAT.
Local applications and local application distribution
Concepts and technologies are disclosed herein for local applications and local application distribution. According to one aspect of the concepts and technologies disclosed herein, an application authority system can receive a local application for distribution to a local router. The application authority system can perform an application approval process to approve the local application for distribution to the local router. The application authority system can cause the local application to be distributed to the local router. The local router can receive the local application and can distribute the local application to one or more devices via a local network.
Methods and systems for performing dynamic risk analysis using user feedback
A method of verifying an account login request may include identifying one or more Internet Protocol (IP) addresses as potentially malicious and, for each identified IP address, determining a first value equal to a number of times over a period of time that the IP address was identified by the computing device as potentially malicious, determining a second value equal to a number of times over the period of time that the IP address was confirmed to be potentially malicious by one or more account users, determining a proportion value associated with the IP address by determining a ratio of the second value to the first value, labeling the IP address as safe or unsafe based on at least the proportion value associated with the IP address, and maintaining, by the computing device, a list of the IP addresses and corresponding labels.
Systems and methods for detecting near field communication risks
A computer-implemented method for detecting near field communication risks may include (1) identifying a mobile device capable of near field communication, (2) identifying an attempted near field communication involving the mobile device, (3) tracking at least one contextual behavior relating to the attempted near field communication; and (4) determining, based at least in part on the contextual behavior, that the attempted near field communication poses a risk to the mobile device. Various other methods, systems, and computer-readable media are also disclosed.
Secured automated or semi-automated systems
Secured automated or semi-automated systems are provided herein. In one embodiment, a sensor system includes a sensor, a legacy computing environment that is configured to communicate with the sensor and process sensor raw data output, and transmit the processed sensor output to a first network node over the network, and a trusted computing environment configured to receive raw sensor output directly from the sensor and transmit the raw sensor output to an additional network node or the first network node over the network.
Method and apparatus of identifying user risk
Techniques to identify suspicious user logins may include acquiring, by a computing device, a routing path associated with a user login based on login information. The computing device may extract current routing characteristic information from the routing path, and identify whether the current user login is suspicious based on the current routing characteristic information. These techniques reduce the influence of IP address changes on user identification as well as errors associated with user identification, and identify geographic positions more accurately.
Automatic stability determination and deployment of discrete parts of a profile representing normal behavior to provide fast protection of web applications
A system for automatic stability determination and deployment of discrete parts of a profile representing normal behavior to provide fast protection of web applications is disclosed. The system, in response to a sensor collecting from HTTP requests sent by the clients to the web application installed on the protected device, automatically creates for a web application a profile with discrete parts that will represent normal behavior so that deviations from the profile can be considered anomalous. The system automatically determines that a first of the discrete parts of the profile has become stable. The system then automatically deploys the first discrete part of the profile to the sensor that now will compare with the first discrete part of the profile subsequent HTTP requests sent by the clients to the web application to detect deviations from the normal behavior represented by the first discrete part.
As provided herein, a user of a client device may navigate to a webpage using a browser. A browser window, populated with a verification image and/or details about the webpage, is generated and presented to the user. The verification image and/or details about the webpage differentiate a browser window generated by the browser, from the webpage, from a browser window generated by a malicious user. The browser window comprises a login box into which credentials for logging into the user account may be entered. Responsive to the user entering correct credentials into the login box and selecting a submit option based upon recognition of the verification image, the browser window may be submitted to a server and the user may be presented with a window comprising access to the user account.
Systems and methods for securing remote configuration
A system and method for securing remote configurations. The system and method can include, receiving configuration payloads as publications from a messaging service. The system and method can also include transmitting validation requests based on received configuration payloads, receiving indications of whether the configuration payloads are valid or invalid, and transmitting an alert based on receiving an indication that a configuration payload is invalid.
A method, system and computer program product for use in managing policies is disclosed. Policies associated with a communications device are correlated with respective locations. The location of the communications device is determined. The policy correlated with the determined location is applied to the communications device.
Container-based system administration
Methods, computing systems and computer program products implement embodiments of the present invention that include defining a first multiple of software container configurations and a second multiple of permission sets, and receiving, by a first computer, a request to perform a service operation on a second computer having multiple resources. Upon identifying one or more of the resources that are required for the service operation, a given software container configuration and a given permission set are selected based on the identified one or more resources, and the given software container configuration and the given permission set are conveyed to the second computer. Upon the second computer receiving the given software container configuration and the given permission set, a software container is generated. The software container is opened on the host computer prior to performing the service operation, and closed upon completing the service operation.
Multi-tenant identity and data security management cloud service
A system provides cloud-based identity and access management. The system receives a request from a client for an identity management service, authenticates the request, and accesses a microservice based on the request. The system determines, based on the request, a tenancy of the client, a tenancy of a user, and a tenancy of a resource. The system retrieves data from the determined tenancies as required to process the request, where the data is retrieved by the microservice using a connection pool that provides connections to the database. The system then performs the identity management service by the appropriate microservice responsible for processing the received request.
System on chip and method therefor
A system on chip comprises a responder unit comprising a set of responder elements and an access control unit associated with an authorization list and the responder unit. An entry of the authorization list defines a set of access requirements in relation to an address space identifying at least part of the responder unit. The access control unit is arranged to: receive a request for access to a target responder element among the responder elements of the responder unit, determine the corresponding set of access requirements for the received access request from the authorization list, and evaluate the request for access with respect to the determined set of access requirements and generate a first request evaluation result. A protection unit associated with the responder unit is arranged to: provide a group assignment assigning a group to each of the responder elements of the responder unit, provide a group authorization list, an entry of the group authorization list defining a set of group access requirements for the group assigned, receive the request for access to the target responder element, determine the group assigned to the target responder element from the group assignment and further determine the set of group access requirements from the group authorization list for the group assigned. The system-on-chip also evaluates the request with respect to the determined set of group access requirements and generates a second request evaluation result. Interaction with the target responder element is controlled in response to the first and/or second evaluation result.
Differentiated containerization and execution of web content based on trust level and other attributes
Systems and methods may provide for receiving web content and determining a trust level associated with the web content. Additionally, the web content may be mapped to an execution environment based at least in part on the trust level. In one example, the web content is stored to a trust level specific data container.
Multinode hubs for trusted computing
Embodiments of multinode hubs for trust operations are disclosed herein. In some embodiments, a multinode hub may include a plurality of memory regions, a trapping module, and a trusted platform module (TPM) component. Each memory region may be associated with and receive trust operation data from a coherent computing node. The trapping module may generate trap notifications in response to accesses to the plurality of memory regions by the associated coherent computing nodes. The trap notifications may indicate which of the plurality of memory locations has been accessed, and the TPM component may process the trust operation data in a memory region indicated by a trap notification. Other embodiments may be disclosed and/or claimed.
Systems and methods for authenticating nodes
To authenticate nodes, a connection between a first node and a second node may be identified. A first set of nodes having connections with the first node and assigned to a first plurality of clusters may be identified. A second set of nodes having connections with the second node and assigned to a second plurality of clusters may be identified. A first distribution of clusters may be generated based on the first set of nodes. A second distribution of clusters may be generated based on the second set of nodes. The first distribution and the second distribution may be analyzed. An authenticity metric for at least one of the first node and the second node may be generated based on the analyzing the first distribution and the second distribution.
Method, terminal device, and network device for improving information security
A method, a terminal device, and a network device are provided. The method of the present invention includes acquiring, by a terminal device, a key, an identity of the terminal device, and identification information of one or more applications on the terminal device, where identification information of different applications on the terminal device is different from each other, and the identity of the terminal device includes International Mobile Equipment Identity (IMEI) and/or International Mobile Subscriber Identity (IMSI); generating, for identification information of one application by using a preset encryption algorithm according to the identity of the terminal device and the key, an encryption result corresponding to the application; and when the application runs on the terminal device, accessing a network by using the encryption result corresponding to the application. The present invention is applicable to protecting information security of a terminal device accessing a network.
System and method of secure encryption for electronic data transfer
A system for secure transfer of encrypted data involves a sender client, a recipient client, a main server, and a key server. The sender client receives instructions from a first user identifying transfer data and a recipient identifier, creates a key, encodes the transfer data using the key, and communicates the key and the recipient identifier to a server. The server creates a secure package identifier and communicates such to the sender client. The recipient client receives and identifies the secure package identifier and the encoded transfer data, receives from a second user a user identifier, and communicates the user identifier and the secure package identifier to the server. The server communicates the key to the recipient client only if the secure package identifier received from the recipient client matches the secure package identifier created by the server and if the user identifier matches the recipient identifier.
Fallback identity authentication techniques
The presently disclosed subject matter includes a system, a method and a non-transitory program storage device configured for authorizing access of a user device to a service provider server. Responsive to a request to authenticate the identity of a user attempting to access an SP server via a user device (UD), an authentication server is configured to initiate at least one authentication operation using a second UD; in the event of a failure to receive a response to the at least one authentication operation from the second UD, the authentication server is configured to proceed according to an alternative authentication method which does not involve the second UD.
Online communication risks
Systems, methods, and apparatus to analyze potential risks of communicating online are described. In an embodiment, the communication may include communicating with a destination and/or communicating over a communication channel and/or communicating through a network entry and/or communicating using a client. Potential risks may be used to determine whether to proceed with online communications and/or whether the risks are prohibitive for online communications. Other embodiments are also claimed and disclosed.
Generic server framework for device authentication and management and a generic framework for endpoint command dispatch
Methods, devices, and systems are described for enrolling a user's bring-your-own-device for secure connection to a company's enterprise computer network. From her mobile device, user clicks on a uniform resource locator (URL) to connect with the login web page on the enterprise network. After authentication, checks are performed to verify that the user has authorization to enroll the type of electronic device, and the profile is installed on the device. A notification is sent to the device by a server on the enterprise network, and a secure workspace application is pushed to the device along with configuration data that automatically links the workspace with the parent device enrollment. Once the user launches the secure workspace application the workspace access configuration data and initializes enrollment with the enterprise network, resulting in a linking of the secure workspace application with its parent device enrollment. The workspace is registered as a child of the parent device, and the lifecycle of the workspace is thus linked to that of the parent.
System and method for out-of-band application authentication
Application-to-Application authentication features using a second communication channel for out-of-band authentication separate from a communication channel of a request from a client to a server. Authentication information is associated with a component of the system such as the request or the client application, while being collected independent of interaction with the client application initiating the request. Implementations provide improved security over existing solutions using in-band or other means of collecting authentication information.
Systems and methods for performing remote authentication of a virtual subscriber identity module (SIM)
Various embodiments for performing remote authentication of a virtual subscriber identity module (SIM) on a mobile communication device include receiving, on a first subscription of the mobile communication device, an authentication request from a virtual SIM network. The mobile communication device may tune from the first subscription to a second subscription of the mobile communication device to send the authentication request to a remote server and periodically perform tune-aways between the first subscription and the second subscription while determining whether the remote server has sent an authentication response through the second subscription. The mobile communication device may send the authentication response to the virtual SIM network through the first subscription in response to determining that the remote server has sent an authentication response through the second subscription.
Provisioning for smart navigation services
Techniques for provisioning a smart navigation service are presented. The provisioning can be performed by a name owner, by the smart navigation service itself, or by a third-party keyword service. The provisioned information can include an entity name, a keyword, and possibly other data correlated to at least one network locator. The navigation service electronically stores in navigation service persistent memory a rule correlating the entity name, the keyword, and, if used, the other data, to the at least one network locator, such that when the navigation service receives, from a client computer communicatively coupled to the navigation service, command data that includes the entity name, the keyword, and possibly other data, the navigation service responds to the client computer with the at least one network locator.
Enterprise computing environment with continuous user authentication
Continuous user authentication includes receiving authentication event information including (1) transaction information describing authentication transactions, the transaction information received from authentication providers and including identification of users and instances of authentication of the users by the authentication providers, and (2) user identification and activity information describing presence and state (e.g. location) of the users, this information received from (a) mobile sensing devices in physical proximity of users independent of user location, and (b) stationary sensing devices at fixed locations of the users. The authentication event information is stored in an authentication event database and is provided to the authentication providers in a continual manner to enable the authentication providers to (a) establish new authentications of the users for accessing services of the computing system, and (b) maintain and revoke previously established authentications of the users based on the authentication event information and authentication policies.
Private and secure communication architecture without utilizing a public cloud based routing server
A method for use with a public cloud network is disclosed. The method includes setting up a private cloud routing server and a smart device client in a client server relationship. The private cloud routing server includes a first message box. The smart client includes a second message box. The first and second message boxes are located on the public cloud network. The method also includes passing an authenticated session based message between the first and the second message boxes in a secure manner. The smart device client and the private cloud routing server can communicate with each other after authentication to provide security. The method also includes setting up another smart device client in a client server relationship with the private cloud routing server. The two smart device clients can privately and securely communicate with each other through the public cloud network.
System and method for confirming identity and authority by a patient medical device
A system and method for confirming identity and authority by a patient medical device is provided. Master credentials are issued to a requesting device and a receiving device from an authorizing agent. The master credentials include a public key of the authorizing agent and a digital signature of a root certification authority. Device credentials are issued to the requesting device from the authorizing agent. The device credentials include a public key of the requesting device and a digital signature of the authorizing agent. Identification credentials are provided to the receiving device and include the device credentials and a digital signature of the requesting device. The requesting device is authenticated. The digital signature of the authorizing agent in the device credentials is checked using the public key of the authorizing agent in the master credentials of the receiving device. The digital signature of the requesting device in the identification credentials is checked using the public key of the requesting device in the device credentials.
Device to device security using NAF key
A method, apparatus and computer program product are disclosed for establishing secure off-network communications between first and second Secure Cellular Devices that each have a cellular identity. The second Secure Cellular Device may assume the role of Remote Device for interaction with the NAF keyserver and may obtain a local key. The first Secure Cellular Device may derive the local key and the two devices may conduct secure communications using the shared local key. The two Secure Cellular Devices may alternate the roles of Secure Host and Remote Device, each twice obtaining or deriving a shared local key such that there are two such keys. The devices may employ one key for secure communication in one direction and the other for communication in the other direction. Alternatively, the devices may derive a unique shared key as a function of the two shared keys.
System and method of efficiently generating and transmitting encrypted documents
The present specification discloses an improved method of encrypting a file and distributing the encrypted file over a network from a user computer to a remote computer, which includes providing an interface to a file encryption application to a user; receiving an input designating an encryption option from among a plurality of encryption options; based upon said input designating an encryption option, and based upon a format of said file, causing a separate application specific to said format to encrypt said at least one file, wherein said encrypted file is adapted to be decrypted using a passcode and wherein said passcode is transmitted to the user via at least one message type.
Security key generator
A communication system has a first and a second communicating device operable to send and receive data units through a communication channel. Some of the data are encrypted using a security key. The first device comprises a first key generator generating a first embodiment of the key independently of a second embodiment of the key generated by a second generator of the second device, the second embodiment being generated independently of the first, which depends on parameter(s) characterizing a first transmission quality of the channel when receiving a first set of unencrypted data sent by the second device. The second embodiment depends on parameter(s) characterizing a second transmission quality of the channel when receiving a second set of unencrypted data sent by the first device, the first set being different from the second set.
Managing unlinkable identifiers for controlled privacy-friendly data exchange
A method for managing unlinkable database user identifiers includes distributing to a first database a first encrypted user identifier, a first database identifier, and a first database user identifier; distributing to a second database a second encrypted user identifier, a second database identifier, and a second database user identifier; receiving from the first database a third encryption and a fourth encryption, the third encryption being formed from the first encrypted user identifier, the second database identifier, and a message comprised in the fourth encryption; decrypting the third encryption thereby obtaining a decrypted value; deriving a blinded user identifier from the decrypted value; and sending the encrypted blinded user identifier and the fourth encrypted value to the second server thereby enabling the second server to compute the second database user identifier from the encrypted blinded database user identifier and the decrypted fourth encrypted value.
Resolver-based data storage and retrieval system and method
System and method for associating general data with an end-user based on the domain name system (DNS) resolver that the end-user uses to map the canonical domain names of internet services to their associated network addresses. The present invention elegantly addresses concerns of scale regarding the key-space, for example the global number of distinct DNS resolvers, and the data-space, for example the number of distinct geographical areas to associate.
Messaging media to go viral
Systems and techniques are disclosed for transmitting a message via one or more platforms, the messages being associated with media content and/or related media content. A related media content may be identified based on the media content and a platform may be selected based on a platform selection criteria. The message may correspond to the related media content and may be transmitted to the platform.
An optoelectronic switch comprising: a first plurality of detector remodulators (DRMs) (C3, D1), each DRM having an integer number M of optical inputs and an integer number N of optical outputs; a second plurality of DRMs (C7, D5), each DRM having N optical inputs and M optical outputs; a passive optical switch fabric (C4+C5+C6, D2+D3+D4) connecting the N optical outputs of each of the first plurality of DRMs with the N optical inputs of each of the second plurality of DRMs, the path of an optical signal through the optical switch fabric depending upon its wavelength; wherein each DRM (C3, D1) of the first plurality of DRMs is configured to act as a tunable wavelength converter to select the desired path of an optical signal through the optical switch fabric (C4+C5+C6, D2+D3+D4); and wherein each of the first plurality of DRMs (C3, D1) includes a concentrator, the concentrator configured to aggregate optical signals received from any of the M inputs of that DRM and to buffer them according to the one of the plurality of second DRMs (C7, D5) that includes their destination port.
Deadlock avoidance techniques
Described are techniques for avoiding deadlock. Each consumer is assigned a priority level denoting a number of resource allocation requests that have been currently granted to the consumer. The priority level is incremented for each resource allocation request granted to the consumer. A set of common resource pool(s) and a reserved resource pool are provided. A wait list of pending resource requests made by the consumers is maintained. If no allocated resources of the set of common pool(s) have been released for at least a threshold amount of time and there is at least one request on the wait list, first processing is performed which includes selecting, in accordance with one or more criteria, a first pending resource request from the wait list that was made by a first consumer, and assigning the first consumer exclusive use of the reserved pool for a lifetime of the first consumer.
Wireless communication terminal and wireless communication method
A wireless communication terminal includes a processor; and a non-transitory memory storing thereon a program which is executed by the processor, the program causing the processor to: transmit a first interest packet requesting transmission of an index of content to a plurality of communication devices via a content-oriented network; receive a first data packet from a first communication device among the plurality of communication devices in response to the first interest packet, wherein the first data packet includes i) the index and ii) first remaining battery level information indicating a remaining battery level of the first communication device, and determine to transmit to the first communication device a second interest packet requesting for transmission of the content to the wireless communication terminal when it is determined that the first remaining battery level information is more than a predetermined threshold value.
Bandwidth throttling in vulnerability scanning applications
Apparatus and methods are disclosed for implementing bandwidth throttling to regulate network traffic as can be used in, for example, vulnerability scanning and detection applications in a computer network environment. According to one embodiment, a method of routing network packets in a networked device having plural network interfaces combines applying traffic class and network interface throttling for marking network packets with a differentiated service code based on input received from a profiler application, throttling the bandwidth of network packets based on a threshold for a designated network interface for the packet, throttling the bandwidth of the bandwidth-throttled packets based on a threshold for its respective differentiated service code, and emitting network packets on each respective designated network interface.
Automated discovery and forwarding of relevant network traffic with respect to newly connected network tools for network tool optimizers
Network tool optimizers and related methods are disclosed that provide automated discovery and configuration of network tool devices. The disclosed embodiments include tool processors having tool discovery engines and tool configuration engines that provide discovery of tool information and generation of rules for filter engines within the network tool optimizer (NTO) so that relevant network traffic received by the NTO is forwarded to network tool devices connected to the NTO. New network traffic sources connected to the NTO can also be automatically configured to forward relevant traffic to the network tool devices based upon the discovered tool information. Further, a database of tool information can be stored within the NTO and can be used by the NTO in determining relevant traffic for connected tool devices. A variety of different implementations can use the automatic tool discovery and configuration embodiments.
Congestion detection based on resource utilization information and user quality-of-experience indicators
A capability is provided for detecting congestion in a communication network. A congestion condition is detected for the network based on resource utilization information associated with the network and a set of user quality-of-experience (QoE) indicators associated with the network. An indication of congestion in the network is detected based on resource utilization information associated with the network and a determination as to whether or not to generate detect a congestion condition for the network is made based on one or more user QoE indicators associated with the network. An indication of congestion in the network is detected based on resource utilization information associated with the network and a determination as to whether or not to generate a congestion alert for the indication of congestion in the network is made based on one or more user QoE indicators associated with the network.
Times-sliced design segmentation
Systems and methods for multi-channel signal processing by a series of single processing core logic circuitries in time-slicing. A first logic circuitry is configured to process multiple data streams from multiple channels in a first cycle-based time-sliced schedule. A time slice in the first cycle-based time-sliced schedule comprises a predetermined number of clock cycles allocated to a corresponding data stream. A second logic circuitry is coupled to the first logic circuitry and configured to process the data streams in a first fragment-based time-sliced schedule. A time slice in the first fragment-based time-sliced schedule is determined based on a predetermined boundary associated with the data fragment and is allocated to process a data fragment of the data streams.
Packet routing and forwarding in information centric networking
A method may include receiving a content packet at an incoming interface of a network device; determining whether the content packet matches an identifier of the content packet in an entry in a pending interest table (PIT); discarding the content packet when the content packet does not match the identifier of the content packet in the entry in the PIT; removing a matching entry from the PIT when the content packet matches the identifier of the content packet in the matching entry in the PIT; caching the content packet in a content store (CS); adding the matching entry to a pending interest removal table (PIRT); and sending a message to one or more network devices that indicates that the content packet is cached on the network device.
Method and apparatus for advanced statistics collection
Systems, methods, and computer-readable media provide for collection of statistics relating to network traffic between virtual machines (VMs) in a network. In an example embodiment, a virtual switch hosted on a physical server provides network address information of VMs deployed on the physical server to a virtual switch controller. The controller collects this network address information from each virtual switch under its control, and distributes the aggregate address information to each switch. In this manner, the controller and each switch within the controller's domain can learn the network address information of each VM deployed on physical servers hosting switches under the controller's control. Each virtual switch can determine a classification of a frame passing through the switch (e.g., intra-server, inter-server and intra-domain, or inter-domain traffic), and statistics relating to the traffic. In an example embodiment, the virtual switch controller can collect the statistics from each switch within its domain.
Transitioning between communication protocols between networks
A method is provided in one particular example and may include obtaining routing information for a plurality of Internet Protocol (IP) addresses in a first network that natively supports a first Internet protocol, the routing information for the plurality of IP addresses in the first network further comprising an additional IP address in the first network and an indication that the additional IP address in the first network is to be used as a tunnel endpoint within the first network for receiving data destined to any of the plurality of IP addresses in the first network; and sending data destined to any one of the plurality of IP addresses in the first network to the additional IP address in the first network.
Supporting low latency applications at the edge of wireless communication networks
Various embodiments manage data flow between at least one wireless communication device and at least one application executing at an edge of the wireless communication network. In one embodiment, a first flow regenerator disposed within the network generates a replicated set of data packets. The replicated set of data packets are a copy of a set of data packets being transmitted between an application disposed on a first node at an edge of the network and a wireless communication device. The first flow regenerator sends the replicated set of data packets to a second flow regenerator disposed in the network. The replicated set of data packets are sent to the second flow regenerator through at least a second node disposed between the first flow regenerator and the second flow regenerator. The second node is configured to perform one or more book-keeping operations on the replicated set of data packets.
Deploying applications in a networked computing environment
An approach for deploying and managing applications in a networked computing environment (e.g., a cloud computing environment). A user uploads an application for deployment in the networked computing environment. Metadata of the application is analyzed and compared to metadata of previously deployed applications. Using the comparison, a set of architectures used in conjunction with previously deployed application(s) with similar platform and middleware requirements are presented to a user. The user can select an architecture for deploying the application. The application is continuously monitored after deployment, and alternative architectures to improve the application can be presented to the user, if desired.
Systems and methods for managing network communication
A computer-implemented method for managing network communication may include (1) identifying a pattern of network communication between a network node and a network service, (2) creating a representation of the network communication pattern, (3) querying, using the representation of the communication pattern, a network communication pattern database that associates network communication patterns with computer programs responsible for generating the patterns, (4) receiving, in response to querying the database, identification of a computer program associated with the network communication pattern, and then, (5) applying a network communication management policy assigned to the computer program associated with the pattern to network communication between the network node and network service. Various other methods, systems, and computer-readable media are also disclosed.
Time efficient counters and meters architecture
A network device includes a plurality of interfaces configured to receive, from a network, packets to be processed by the network device. A load determination circuit of the network device is configured to determine whether a packet traffic load of the network device is above a traffic load threshold, and a dual-mode counter module is configured to (i) determine a count of quanta associated with the received packets using a first counting mode in response to the load determination unit determining that the packet traffic load is above the traffic load threshold, and (ii) determine a count of quanta associated with the received packets using a second counting mode, different than the first counting mode, in response to the load determination unit determining that the packet traffic load is not above the traffic load threshold.
Dynamic addition of network function services
A method of dynamically adding a communication service function to a communication session comprises receiving a communication during a communication session on an active connection, detecting a communication service trigger in the communication, determining a second communication service function based on the communication service trigger, sending a message to a network function virtualization (NFV) catalog, receiving a response from the NFV catalog, providing the routing information to a software defined network (SDN) controller, routing the communication from the first communication service function to the second communication service function, processing the communication with the second communication service function, and routing the communication to an output. The message to the NFV server can include an identity of the second communication service function. The SDN controller can set the session routing protocol to include the second communication service function in a communication flow for the communication session.
Making memory of compute and expansion devices available for use by an operating system
Examples disclosed herein relate to making memory of compute and expansion blade devices available for use by an operating system (OS). Examples include making available, for use by an OS, a compute logical processor of the compute blade device, identified memory of the compute blade device, and identified memory of an expansion blade device. Examples further include making the expansion logical processor unavailable to the OS.
Behavior monitoring and compliance for multi-tenant resources
The behavior of multiple users with access to a multi-tenant resource can be monitored and compliance enforced by monitoring state information for each user. The state information can be captured across a level of a network environment, such that any activity across that layer can be monitored and the data aggregated to give a global view of user behavior. If user behavior is determined to fall outside an acceptable range of behavior, any of a number of remedial actions can be taken, which can include notifying the user, billing the user for the inappropriate behavior, or modifying that behavior outside of the control of the user.
Visualization of dynamic fabric automation network topology
In one example embodiment, a computer-implemented method is provided in which data is received that represents connectivity state between a plurality of nodes interconnected in a hierarchical manner in a network and including a first tier of nodes and a second tier of nodes, wherein the nodes in the second tier have at least one link to each node in the first tier. Display data is generated based on the connectivity state among the plurality of nodes, the display data describing a graphical user representation of the inter-tier link status of individual nodes or groupings of nodes. The display data is presented to a display device.
Opportunistic block transmission with time constraints
A technique for determining a data window size allows a set of predicted blocks to be transmitted along with requested blocks. A stream enabled application executing in a virtual execution environment may use the blocks when needed.
Group isolation in wireless networks
Methods and systems here may be used for managing a wireless network including associating a first and second wireless access device to an access point (AP), assigning the first and second wireless access device to respective first and second isolation groups, providing local communication via the AP within the isolation group, and prohibiting local communication via the AP between the first and second isolation groups.
Technique for ensuring congruency in link aggregation
The present disclosure provides a technique for ensuring that a service or conversation is carried in a congruent manner on a Link Aggregation Group (LAG). The Service ID (e.g., conversation ID) to link mapping is configured on both sides of the LAG independently of each other. The Service ID to link assignment is stored in a well-defined format, e.g. in an assignment table. A digest is then prepared on the assignment table. The digest is exchanged between the two sides of the LAG. If there is a mismatch between the digests, then the service is transmitted on a predefined and agreed-upon default link if congruency has to be enforced for that particular service. Furthermore, the digest exchange allows verification on the configuration to check whether all services to be handed-off are configured on both sides.
Migration of profiles between virtual connect domains
Migration of profiles between virtual connect domains is described. In an example, a plurality of validations are performed on a profile from a first virtual connect domain virtualizing devices using a first configuration. The profile is updated based on a second virtual connect domain virtualizing devices using a second configuration. The profile is moved for use by a device in the second virtual connect domain.
Measuring method and apparatus in wireless communication system
An embodiment of the present invention relates to a method for transmitting information for measuring a terminal by a first transmission point among a plurality of transmission points which use identical time division duplex (TDD) settings in a wireless communication system. The method is an information transmitting method and includes a step of transmitting a subframe set for measurement to the terminal, wherein the subframe set is determined from first and second pieces of information related to a change of the TDD setting.
Transport network tunnel setup based upon control protocol snooping
Rather than there being a requirement that specific instructions be issued to cause a transport network tunnel to be configured, it is proposed herein to have a transport node autonomously determine that a transport network tunnel is to be configured and, responsively, cause the transport network tunnel to be configured. In general, a transport node (an L0/L1 device) adjacent to the packet device at the origin of LACP messages snoops on the LACP messages. The transport node may determine, based on the contents of a control LACP message, that a new packet network link is to be established between the origin packet device and a destination packet device. Responsive to the determining, the transport node adjacent to the origin packet device causes a transport network tunnel to be established between one of its ports and a port at a transport node adjacent the destination packet device.
Storage mobility using locator-identifier separation protocol
A processing device such as a router or other network device implements a locator-identifier mapping system associating identifiers of respective endpoints with respective locators in accordance with a locator-identifier separation protocol. A first one of the endpoints comprises a storage server associated with a storage array. In conjunction with reconfiguration of the storage server, the locator-identifier mapping system updates a particular one of the locators corresponding to the endpoint identifier of the storage server. The reconfiguration of the storage server may comprise, for example, a migration of the storage server within a given data center, or from a first data center to a second data center. The locator of the storage server illustratively specifies a subnet of the storage server. The processing device may comprise a router operating as at least one of an ingress tunnel router and an egress tunnel router in accordance with the locator-identifier separation protocol.
Producer computing system leasing on behalf of consumer computing system
Processes and systems are disclosed for leasing a producer virtual machine on behalf of a consumer virtual machine in an overlay network. The consumer host of the consumer virtual machine can communicate with a set of leasing agents to obtain the identity of a number of producer virtual machines capable of providing the consumer virtual machine with access to a service. When the consumer virtual machine attempts to communicate with a producer system, the consumer host can identify a producer host that hosts a target producer virtual machine and redirect a service request to the producer host.
I/Q imbalance correction for the combination of multiple radio frequency frontends
Aspects relate to correcting Inphase/Quadrature (I/Q) imbalances across multiple wireless elements such as multiple receive elements or multiple transmit elements. In one example implementation, I/Q imbalances can be corrected using a digital circuit provided within a digital portion of a direct conversion wireless element (upconversion or downconversion) that implements only two multiplications and one addition per pair of I and Q samples.
Transmitter, a receiver, and methods therein
A method in a transmitter for transmitting CPM signals to a receiver. The transmitter divides bits into first and second sequences; duplicates the sequences into third and fourth sequences. The first and second sequences are mapped into a first layer, and the third fourth sequences are mapped into a second layer. The transmitter time reverses one of the first and second sequences, and one of the third and fourth sequences; and maps 1 to 0 and 0 to 1 in one of the time reversed sequence in each layer. The transmitter formats the first and second sequences into a first burst, and the third and fourth sequences into a second burst; and applies differential encoding to the bursts when a modulation index value is a non-integer. The first and second bursts are continuous phase modulated and transmitted as first and second CPM signals through a respective antenna.
A analog equalizer includes: an adjusting circuit, generating an adjustment signal and a selection signal; a cascaded equalization circuit, receiving the adjustment signal, and adjusting at least one of a tunable resistor, a tunable capacitor and a tunable current source in the multi-stage equalization circuit according to the adjustment signal to perform an equalization process on a signal to be equalized; and an analog multiplexer, coupled to the cascaded equalization circuit and the adjusting circuit, selecting and outputting an equalized signal outputted from one stage of the multi-stage equalization circuit according to the selection signal. Wherein, the adjusting circuit adjusts the adjustment signal and the selection signal according to the equalized signal outputted from the analog multiplexer and a target equalization value.
Clock correction method and circuit utilizing training sequence to correct oscillator output, and reference clock generation method and circuit utilizing training sequence to generate reference clock
A clock correction method is provided. The clock correction method includes the following steps: receiving an equalization training sequence specified by a communication protocol, wherein the equalization training sequence includes a specific pattern occurring repeatedly; performing frequency division on the equalization training sequence according to a number of toggles of the specific pattern so as to generate an equalization training sequence clock; and correcting a frequency of an output clock of an oscillator according to the equalization training sequence clock.
Faster-Than-Nyquist (FTN) signal transmission apparatus and method thereof
A Faster-Than-Nyquist (FTN) signal transmission apparatus and method thereof. The signal transmission apparatus includes a pilot interference estimator and compensator configured to estimate interference on pilot symbols by a Faster-Than-Nyquist (FTN) signal generated by FTN modulating a sequence of data symbols, and generate a compensated pilot symbol sequence to cancel the estimated interference; a pilot FTN modulator configured to generate an FTN pilot signal in which inter-pilot symbol interference does not occur, by performing FTN pulse-shaping on the compensated pilot symbol sequence; and a transmitter configured to transmit an FTN data signal and the FTN pilot signal.
Channel estimation system for wireless communication system
A receiver circuit for estimating a state of an uplink channel between a wireless communication unit and a base station in a wireless communication system computes a conditioned Channel Impulse Response (CIR), the amount of conditioning being based on the noise present in the channel. A CIR and a Noise Variance are estimated from a Sounding Reference Signal received from the wireless communication unit. The estimated CIR is conditioned by comparing it with an adaptive threshold value selected from a look up table that lists threshold values against Noise Variance values. The threshold value further conditions the CIR to eliminate noise and interference. The conditioned CIR is converted into the frequency domain and used to provide a channel gain estimate which, together with noise estimates, is used to determine a Signal to Interference Noise Ratio (SINR) for the channel.
Transferring data between elements of a cable communication device
Systems, apparatus and methods are described including operations for demodulating, via a front end demodulator of an analog front end processor, at least a portion of digital sample data into front end demodulated data. A framer of the analog front end processor may frame data from a selection of the front end demodulated data as well as undemodulated digital sample data remaining from the digital sample data, into frames of front end demodulated data and/or undemodulated digital sample data.
Network apparatus for secure remote access and control
A network appliance is designed and configured to communicate over a data network and to provide secure on-demand remote access and control of a computing system in the context of remote support.
Progressive modulation for downstream access
A method, system and computer program for transmitting at least two payloads in a downstream traffic phase of a time-division duplex (TDD) cycle with a single preamble from a headend followed by concatenated payloads without intervening preambles, whereby the payloads are ranked by increasing modulation profiles. The preamble, and concatenated and ordered set of payloads are then transmitted to two or more predetermined customer premise equipments (CPEs).
Communication system, relay apparatus, control apparatus, server apparatus, control method, and information processing method
A HEMS controller repeatedly transmits a predetermined signal to a control-target appliance at a set time interval in order to detect a change in a status of the control-target appliance. If the status changes, the HEMS controller notifies a smartphone of the changed status via a server apparatus. In a state where the time interval is set to a first time interval, when receiving a control instruction for controlling an operation of the control-target appliance from the smartphone via the server apparatus, the HEMS controller transmits the control instruction to the control-target appliance. In response to the transmission of the control instruction to the control-target appliance, the HEMS controller changes the time interval to a second time interval shorter than the first time interval.
Event notifications in a shared infrastructure environment
A shared infrastructure environment system is provided that includes a capability to notify individual nodes of notifications, events, and alerts. The system receives, via a management fabric, a subscription from an event client module for information associated with a component. The system also receives a component update associated with the component. The system identifies if any event client module operating on any node has subscribed to receive component updates associated with the component, and sends the component update, via the management fabric, to the identified event client modules.
Methods and apparatus for power efficient broadcasting and communication systems
A method and apparatus for content multicasting and broadcasting and data unicasting in a broadband multicarrier wireless communication system. A base station is configured to transmit, and a mobile station is configured to receive, a sequence of consecutive frames. The frames comprise two types: frames containing time-frequency resources for content multicasting and broadcasting via a single frequency network, and frames containing time-frequency resources for data unicasting without the use of a single frequency network. The two types of frames are intermixed in accordance with an intermixing configuration pattern. The intermixing configuration pattern is indicated by a bit-map contained in a scheduling signal.
Power over ethernet method and apparatus for immediate power availability
A PSE control circuitry arranged to: control the power source to output a detection signal; responsive to the detection signal, determine the resistance of a signature resistive element; in the event that the determined resistance is within a predetermined range, control a power source to output power to the load; in the event that the determined resistance is outside the predetermined range, prevent the power source from outputting power for a predetermined disconnect time period; detect the amount of power drawn from the power source; in the event that the detected power amount is less than a predetermined minimum power draw value, control the power source to cease output of power for a predetermined power down time period, the predetermined power down time period less than the predetermined disconnect time period; immediately subsequent to both time periods, control the power source to output the detection signal.
Generating integers for cryptographic protocols
In a general aspect, pseudorandom integers are generated for use in a cryptographic protocol. In some aspects, a first plurality of digits are obtained and converted to a second plurality of digits. The first plurality of digits (e.g., bits) represent an integer in a first number system (e.g., binary), and the second plurality of digits (e.g., trits) represent the integer in a second number system (e.g., trinary). A plurality of integers in the first number system are generated based on the second plurality of digits, and an array of integers is produced. Each integer in the array is less than a modulus, and the array includes the plurality of integers. The array of integers can be used in a lattice-based cryptographic protocol.
Frequency control data synchronization
In an embodiment, a circuit includes a synchronizer configured to generate a trigger signal synchronized to a reference clock. A synthesizer is configured to synthesize a signal according to frequency control data in response to the trigger signal. A radio receiver is configured to process a carrier signal according to the synthesized signal. A phase measurement unit is configured to measure a first channel frequency response based on the processed carrier signal.
Broadband distributed amplifier based active duplexer
A system includes a transmitter to drive a transmission signal via a first and second transmission line. One half of the transmission signal is applied to the first transmission line and the other half of the transmission signal is applied to the second transmission line. An antenna radiates the transmission signal from the transmitter and receives a reception signal. The reception signal is driven in the opposite direction of the transmission signal on the first and second transmission lines. A plurality of differential amplifiers receive the reception signal from different sections of the first and second transmission lines and generate amplified output signals to a receiver output path having a first and second receiver transmission line. The differential amplifiers reject the one half of the transmission signal applied to the first transmission line and the other half of the transmission signal applied to the second transmission line.
Method and apparatus for receiving ACK/NACK in wireless communication system
The present invention provides a method for receiving acknowledgement/not-acknowledgement (ACK/NACK) of a terminal in a wireless communication system. The method transmits uplink data through an uplink data channel and receives ACK/NACK for the uplink data. The uplink data channel is transmitted through aggregated carriers and the aggregated carriers include a first band recognizable to first and second type terminals and a second band recognizable only to the second type terminal.
Method and base station for transmitting a data block
A method and a base station of transmitting a data block are provided. At least one data block is transmitted via at least one of at least two downlink frequency bands. A modulation symbol and N spreading sequences are received. Acknowledgement/negative acknowledgement (A/N) information is determined in accordance with the modulation symbol and the N spreading sequences. The modulation symbol and the N spreading sequences jointly determine the A/N information. And the at least one data block may be retransmitted depending on the A/N information determined.
Method for puncturing UE specific reference signal in radio access system supporting new carrier type and apparatus supporting same
The present invention relates to methods for performing a radio resource measurement in a synchronized cell when a similar co-location is applied and apparatuses for supporting the same. As an embodiment of the present invention, a method in which a user equipment (UE) performs a radio resource measurement (RRM) in a radio access system may comprise the steps of: receiving a higher layer signal including similar co-location (QCL) information of a channel state information reference signal (CSI-RS) of a first cell and a cell specific reference signal (CRS) and/or a CSI-RS of a second cell; receiving the CRS and/or the CSI-RS of the second cell on the basis of the QCL information; and measuring a first RRM of the first cell by using the CRS and/or the CSI-RS of the second cell.
Communication system, base station apparatus, mobile station apparatus, measurement method, and integrated circuit
In a communication system in which a base station apparatus notifies a mobile station apparatus of a measurement configuration indicating a configuration of measurement using a reference signal, in the measurement configuration, there are at least a first measurement configuration to carry out measurement using a cell-specific reference signal and a second measurement configuration to carry out measurement using a channel state information reference symbol, and the mobile station apparatus determines whether the measurement configuration is the first measurement configuration or the second measurement configuration based on the measurement configuration notified from the base station apparatus.
Communicating reference and data information in a wireless network
A mobile device may generate reference bits. The mobile device may also produce a frame to send in an uplink transmission having two portions selectively with the reference bits or data bits.
Method and system for transferring wireless transmit/receive unit-specific information
The present invention is related to a method and system for transferring wireless transmit/receive unit (WTRU)-specific information to support enhanced uplink (EU) operation in a wireless communication system. A radio network controller (RNC) obtains WTRU-specific information, and transfers the WTRU-specific information to the Node-Bs. Each Node-B is configured to schedule uplink transmissions from a WTRU and utilizes the WTRU-specific information in operation of EU transmissions.
HARQ feedback reporting based on mirrored information
Techniques according to which HARQ feedback transmitted from a wireless device to a base station includes not only the ACK/NACK status for the corresponding hybrid automatic-repeat-request, HARQ, process, but also certain information that was provided by the network in the last received downlink assignment. An example method, as implemented in a wireless device operating in a wireless communication network, comprises receiving (610) from the wireless communication network, in a first transmission-time interval, a resource-assignment message indicating resources allocated for a data transmission to the wireless device. The example method further comprises transmitting (620) to the wireless communication network, in a second transmission-time interval, feedback information that includes an indication of whether the data transmission was correctly received by the wireless device and further includes one or more mirrored information fields copied from the resource-assignment message.
High efficiency WLAN preamble structure
Aspects of the present disclosure provide example preamble formats with repeated signal (SIG) fields that may help provide backwards compatibility and help address the effects of larger delay spreads in various wireless bands (e.g., WiFi bands).
Rate matching method and apparatus for polar codes, and wireless communication device
A rate matching method for polar codes includes: with respect to polar codes output by an encoder, determining a plurality of types of punching position sets to be selected, punching positions indicated by any two punching position sets being not completely identical to each other; for each type of punching position set, determining the sum of error probabilities of all bit channels for transmitting information bits of the Polar codes when the punching position set is applied, the sum of the error probabilities being called the upper limit of frame error ratios corresponding to the punching position set; and from the plurality of types of punching position sets to be selected, selecting a punching position set corresponding to the minimum upper limit of the frame error ratios as a selected punching position set, and according to p punching positions indicated in the selected punching position set, conducting rate matching,
Transmitting apparatus and mapping method thereof
A transmitting apparatus is disclosed. The transmitting apparatus includes an encoder to perform channel encoding with respect to bits and generate a codeword, an interleaver to interleave the codeword, and a modulator to map the interleaved codeword onto a non-uniform constellation according to a modulation scheme, and the constellation may include constellation points defined based on various tables according to the modulation scheme.
Transmitting system and method of processing digital broadcast signal in transmitting system, receiving system and method of receiving digital broadcast signal in receiving system
Methods and apparatus for transmitting and receiving broadcast signals are provided. The method for transmitting a broadcast signal includes encoding mobile data for forward error correction (FEC), encoding signaling data, forming data groups including the encoded mobile data and the encoded signaling data and transmitting a signal frame that includes the data groups.
Multiple-wavelength passive optical network (PON) power saving
An optical line terminal (OLT) comprising a processor configured to process a first power consumption data associated with a first optical network unit (ONU) for a plurality of wavelength channels in a multiple-wavelength passive optical network (PON), and select a first target wavelength channel from the plurality of wavelength channels based on the first power consumption data in order to reduce power consumption at the first ONU, and a transmitter coupled to the processor and configured to transmit to the first ONU a tuning control message instructing the first ONU to tune to the first target wavelength channel.
Optical wavelength demultiplexer having optical interference filters connected in cascade
An optical wavelength demultiplexer includes a wavelength demultiplexing device, a first wavelength filter and a first- and second-stage wavelength sub-filters. The wavelength demultiplexing device demultiplexes an input light into a first wavelength band including wavelengths λ1 and λ2 in the vicinity of 1310 nm and a second wavelength band including a wavelength λ3 of 1490 nm and a wavelength λ4 of 1550 nm to output. The first-stage wavelength sub-filter removes the wavelength λ2 longer than 1310 nm from the second wavelength band and transmits the wavelength λ3 of 1490 nm. The second-stage wavelength sub-filter removes the wavelength λ4 of 1550 nm and outputs the wavelength λ3 of 1490 nm, which is the remainder of the selected lights, with a sufficient wavelength spectral purity.
Communication systems and methods
Example communication systems and methods are described. In one implementation, a method receives a first chaotic sequence of a first temporal length, and a second chaotic sequence of a second temporal length. The method also receives a data symbol for communication to a destination. Based on the data symbol, the second chaotic sequence is temporally shifted and combined with the first chaotic sequence to generate a composite chaotic sequence. The first chaotic sequence functions as a reference chaotic sequence while the second chaotic sequence functions as a data-carrying auxiliary chaotic sequence.
System and method for direct passive monitoring of packet delay variation and time error in network packet communications
Systems and methods are disclosed for direct passive monitoring of packet delay variation and time error in network packet communications. Packets traversing between slave and master clocks are monitored to provide direct results of the actual conditions without the need to rely upon inference determinations. Certain embodiments provide tap configurations to monitor packet flows, while certain other embodiments provide in-line configurations to monitor packet flows. Certain further embodiments provide multiple monitoring devices that can be used for passive monitoring purposes, such as passive monitoring to test boundary clock. These multiple monitoring devices can be configured to be within a single or different test instruments. Other variations are also described.
Techniques for mitigating cross device co-existence interference
The disclosure provides techniques for reducing interference caused by a first device to a second device receiving a satellite-based positioning signal. A device such as a user equipment (UE) or base station (eNB) determines a threshold transmission power for a transmission frequency of the device. The device also determines a signal strength of the satellite-based positioning system signal at the device. The device then controls a transmission property of the device based on the signal strength of the satellite-based positioning system signal when a transmission power of the device at the transmission frequency satisfies the threshold. The device may also determine that reception of the satellite-based positioning system signal by the second device is likely to be affected by a transmission from the device at a transmission power that satisfies the threshold and control the transmission property when reception of the satellite-based positioning system signal is likely to be affected.
Data interpretation with noise signal analysis
Methods and systems for providing and processing data are disclosed. An example method can comprise determining a first weighted probability based on a probability of occurrence of a noise signal and a first likelihood ratio. The first likelihood ratio is based on a frequency distribution of the noise signal. An example method can comprise determining a second weighted probability based on a probability of non-occurrence of the noise signal and a second likelihood ratio. An example method can comprise determining a combination of the first weighted probability and the second weighted probability, and providing the combination to a decoder configured to decode a value based on the combination.
Optical transmitter module having multiple signal lanes
An optical transmitter module that generates a signal multiplexing two or more optical signals each having optical power satisfying a preset magnitude is disclosed. The optical transmitter module includes laser diodes (LD), adjusting lenses coupled with the LDs to generate dispersive optical outputs, and a concentrating lens that concentrates the dispersive optical beams onto a coupling fiber. A feature of the optical transmitter module is that the adjusting lenses are set closer to the LDs to adjust the optical power coupled with the coupling fiber.
Vehicle communication system having self-configuring optical interfaces
A vehicle communication system may include a first vehicle node, a second vehicle node, and a fiber optic node connection. The first vehicle node includes an electronic processing unit coupled to a first communication circuit that includes a plurality of self-configuring optical cells. The fiber optic node connection couples the first vehicle node to the second vehicle node using at least some of the self-configuring optical cells. In response to a trigger event, the electronic processing unit is adapted to configure the plurality of self-configuring optical cells to enable communication between the first and second vehicle nodes via the fiber optic node connection.
Relay supported method, system, and relay node for transmitting visible light information
A relay supported method, system, and a RN for transmitting visible light information are provided. The method includes that UE sends information to a detected RN, and the RN processes and forwards the information from the UE to a VS. The RN is configured to process and forward the information from the UE to the VS in an uplink direction. According to the present disclosure, with adoption of visible light communication relay, visible light communication coverage may be broadened, and a visible light communication rate may be increased.
Adaptive optics based simultaneous turbulence compensation of multiple orbital angular momentum beams
An adaptive optics compensation approach for an OAM multiplexed FSO communication system is described, in which a Gaussian beam is used to probe the turbulence-induced wavefront distortions and derive the correction pattern for compensating the OAM beams. Using this approach, we demonstrate simultaneous compensation of multiple OAM beams each carrying a 100-Gbit/s data channel through emulated atmospheric turbulence. The results indicate that the turbulence-induced crosstalk and power penalty could be efficiently mitigated by ˜12.5 dB and ˜11 dB respectively.
Monitored patch panel system
A monitored fiber optic patch panel system is disclosed. The system includes a unit controller and at least one patch panel unit. The unit controller includes a computer, a graphic display, and a Universal Serial Bus (USB) hub. The patch panel unit is connected to the USB hub and includes connectors configured to receive a corresponding optical fiber. Optical directional couplers are coupled to a corresponding one of the connectors, and photodiodes are positioned adjacent corresponding optical directional couplers to measure an optical power level conveyed on the corresponding optical fiber. A data acquisition device is connected to the photodiodes to capture data indicative of the optical power levels. A microcontroller is connected to the data acquisition device to store the data captured by the data acquisition device. The computer is configured to receive the stored data from the microcontroller, and to identify to which connectors optical fibers are connected.
Security monitoring for optical network
Apparatus (10) for an optical communications network has optical paths for optical traffic, and optical ports (20,40), one of which is an unused input port (20). A security monitoring system (30) has a blocking part (50) comprising an interface (51) coupled removably to the unused input port (20) to occupy it to prevent unauthorized access. A light source is optically coupled to the interface (51) such that, when the interface is coupled to the unused input port, light can be transmitted through the interface (51) into the unused input port (20). An optical detector (60) can detect light reflected back from the interface (51), and there is alarm circuitry (70) configured to output an alarm signal based on the detecting of the reflected light. This monitoring can help make the node more secure from interference such as the introduction of a noise signal. The system can be passive or active, and does not require a change in the installed node configuration and so can be added easily to existing infrastructure.
Optical communication system and optical communication abnormality-recovery method
In an optical communication abnormality-recovery system and method, when an abnormality occurs in transmission and reception of one wavelength of an optical line terminal of a PON system, an optical network unit that is performing communication at a certain wavelength switches the wavelength for performing the communication to another backup wavelength that is instructed in advance. The optical line terminal also performs switching so that the communication is performed using the same backup wavelength as in the optical network unit.
Antenna structure and wireless communication device using the same
An antenna structure includes a feed end, a ground end, a main radiator, a coupling portion, a matching circuit, a switching circuit, and a diplexer. The main radiator is coupled to the feed end. The coupling portion is coupled to the ground end and is spaced apart from the main radiator to allow current to flow from the main radiator to the coupling portion. The switching circuit is coupled to the ground end. The diplexer includes a first port, a second port, and a third port, the first port is coupled to the feed end, the second port is coupled to a transceiver via the matching circuit, and the third port is coupled to the transceiver. The diplexer separates high frequency current from low frequency current output from the feed end, the matching circuit and the switching circuit adjust the high frequency current and the low frequency current.
Systems and methods for controlling a reference signal mode to facilitate beamforming
Systems and methods are described for controlling a reference signal mode to facilitate beamforming. A load amount for reference signals from one or more wireless devices in communication with an access node is determined and compared with load level criteria. When the load amount meets or exceeds the load level criteria, the one or more wireless devices are directed to transmit reference signals using a subband mode of transmission. A subband quality is determined for a plurality of subbands available for the one or more wireless devices and a subband for reference signal transmission is selected from the plurality of subbands based on channel quality criteria. Wireless transmission, such as from an access node, to the one or more wireless devices is scheduled utilizing beamforming based on the reference signal.
Multi-user MIMO via active scattering platforms
Aircrafts flying near Earth or naval vessels are used as active scattering platforms in a multipath communications channel in MIMO communications systems. These man-made platforms in a communications channel, with techniques of beam forming and wavefront multiplexing in both transmitters at source and receivers at destinations enhance the ability to coherently combine the power of the communication signals, and improve the signal-to-noise ratio in addition to the MIMO advantage of multiple times of channel capacity over a finite bandwidth via frequency reuse. These platforms may be stationary, mobile ground based, or ocean surface based. They may also be airborne, or space borne. A swarm of 10's micro-UAV based mini-transponders is an example through active scattering of these micro-UAV to generate 10× more available bandwidth between a base station and ground mobile users over same bandwidth.
Transmission control apparatus and computer readable medium
Provided is a transmission control apparatus that, at a first transmission timing, causes a first symbol to be transmitted from a first antenna, causes the first symbol having the same phase as the first symbol transmitted from the first antenna to be transmitted from a second antenna that is orthogonal to the first antenna and has a path to a mobile terminal that is the same as a path between the first antenna and the mobile terminal, causes a second symbol to be transmitted from a third antenna arranged parallel to the first antenna, and causes the second symbol having the inverse phase of the second symbol transmitted from the third antenna to be transmitted from a fourth antenna that is orthogonal to the third antenna and has a path to the mobile terminal that is the same as a path between the third antenna and the mobile terminal.
Method and system for performance testing
Disclosed is a method and system for performance test. The method includes: configuring a static channel between a transmitting end and a receiving end in a system configured with M transmitting antenna ports and N receiving antennas, wherein singular values of a N*M channel matrix of the static channel are equal, wherein, M=4 and N=4; or M=8 and N=4; or M=8 and N=8. The transmitting end transmits data to the receiving end by the static channel. The abovementioned technical solution can implement the performance test in 4 or 8 receiving antennas, and it can implement CQI reporting precision performance test of static channel in 4 or 8 receiving antennas.
Communication terminal for performing distributed communication in communication system and communication method for same
The present invention relates to a system for providing distributed communication between communication terminals and a method for same. The method for providing distributed communication between communication terminals in a communication system includes the steps of: a first communication terminal receiving at least one first signal from at least one target communication device; the first communication terminal collecting at least one second signal that at least one second communication terminal receives from the at least one target communication device and at least one third signal that the at least one second communication terminal obtains by processing the at least one second signal in a preset processing scheme; and the first communication terminal combining the at least one first signal and the at least one second signal, or the at least one first signal and the at least one third signal.
Distributed antenna systems (DAS) supporting expanded, programmable communications services distribution to programmable remote communications service sector areas
Embodiments disclosed herein include distributed antenna systems (DASs) supporting expanded, programmable communications services distribution to remote communications service sector areas. In one embodiment, the DAS includes a first programmable switch for distributing downlink communications signals into one or more communications service sector sets. The DAS further includes a second programmable switch configured to distribute the one or more communications service sector sets to one or more remote communications service sector areas. A configurable extender module is also included to provide expanded routing of communications service sector sets in the DAS. In this manner, the DAS is programmable to allow any combination of communications service sector sets and expanded communications service sector sets from any number of different base stations to be routed to any combination of remote communications service sector areas and expanded remote communications service sector areas, based on capacity needs and capability of the DAS.
Wireless power transmitter and receiver
A power transmitter supplies an electric power signal to a wireless power receiver. A transmission antenna is configured to transmit the electric power signal, and to receive data from the wireless power receiver. The data includes personal data that indicates user-specific information with respect to the user of the wireless power receiver, in addition to control data to be used to control the wireless power transmitter. A driver drives the transmission antenna. A controller controls the driver according to the control data received via the transmission antenna, and acquires the personal data.
Power reception device, power transmission device, and power transmission system
An active electrode and a passive electrode are electrically field-coupled with an active electrode and a passive electrode provided in a power transmission device, respectively. Power in a high frequency voltage excited on the active electrode and the passive electrode is supplied to a mobile unit via a step-down transformer, a rectification smoothing circuit, and a DC-DC converter. A CPU turns off switches when wireless communication is carried out. The passive electrode functions as a booster antenna that is magnetically field-coupled with an antenna coil. A high frequency signal outputted from an RF circuit is transmitted via the antenna coil and the passive electrode, and a high frequency signal transmitted from the power transmission circuit is inputted, via the passive electrode and the antenna coil, to the RF circuit.
A data communications receiver including a receiver coil, a first amplification stage coupled to the receiver coil, the first amplification circuitry to differentially amplify at least part of signal received by the receiver coil relative to a threshold, a second amplification stage coupled to receive the differentially amplified signal from the first amplification stage, the second amplification stage comprising a current mirror, and hysteretic level shifting circuitry to shift a level of part of the signal received by the receiver coil, the threshold or part of the signal received by the receiver coil and the threshold such that, in response to the at least part of the signal received by the receiver coil having crossed the threshold, a threshold crossing in the other direction is delayed.
Spatially enabled secure communications
Spatially enabled secure communication technologies are disclosed. A proximity boundary can be defined by a communication range of one or more SRC devices configured to communicate using near field magnetic induction (NFMI) using at least two antennas to provide magnetic induction diversity. Secure data can be selected for NFMI communication on a spatially secure NFMI data link between the one or more SRC devices. Non-secure data can be selected for communication on one of a wireless local area network or a wireless wide area network.
Interference control in a broadband powerline communication system
A broadband powerline communication system is disclosed which makes use of knowledge of the spectrum characteristics of a local radio environment in order to improve the performance of the system. A determination is made of the spectrum characteristics of a radio environment in the vicinity of the broadband powerline communication system that is transmitting data on modulated carrier frequencies. Certain ones of the carrier frequencies otherwise used by the broadband powerline communication system may be masked (i.e., not used) by all or part of the broadband powerline system in order to avoid interference based on the determination. In various embodiments, the spectrum characteristics are determined 1) in advance and used to compile a configuration database comprising frequency masking parameters; 2) by monitoring the local radio environment using the transmitter/receiver nodes of the system; or 3) based upon receipt of an indication from a conflicting user that the user is experiencing interference. Various combinations of these spectrum characteristic determination techniques may also be used.
Method and apparatus for transmitting electromagnetic waves
Aspects of the subject disclosure may include, for example, an apparatus including a waveguide, an antenna, and a transmitter. The transmitter can facilitate transmission of first electromagnetic waves via the antenna, the first electromagnetic waves having a fundamental mode. The waveguide can facilitate propagation of the first electromagnetic waves at least in part on a surface of the waveguide. The waveguide can be positioned at a location that enables the first electromagnetic waves to induce second electromagnetic waves having fundamental and non-fundamental modes that propagate on a surface of a transmission medium. Other embodiments are disclosed.
De-embedding cable effect for waveform monitoring for arbitrary waveform and function generator
A method for determining a waveform expected to be received by a device under test, the method including outputting a waveform generated by a waveform generation section of an arbitrary waveform and function generator at an output of the arbitrary waveform and function generator; sending the waveform generated by the waveform generation section to the device under test through a cable; monitoring a waveform at the output by a waveform monitoring section of the arbitrary waveform and function generator; and determining by the waveform monitoring section a transformed waveform expected to be received at the device under test based on the generated waveform being modified by the cable.
Fast crosstalk limitation between modems
A device for limiting crosstalk between vectoring modems connected to a group of communication lines comprises a subgroup determining element that obtains information of the division into subgroups, each subgroup being made up of lines experiencing cross-talk from each other, and assigns operational pilot sequences to the group according to the division, an operational sequence transmission control element that transmits the operational sequences on the lines to the modems, which sequences are mutually orthogonal to each other and each communication line receives a corresponding sequence, and a corrective action determining element that obtains cross-talk measurements related to the transmitted operational pilot sequences and determines, for each subgroup, cross-talk and corrective action based on measurements made for a number of sequence symbols, which number corresponds to the minimum number required for obtaining mutually orthogonal pilot sequences within the subgroup.
Method and apparatus for a smart personal connect gateway multi-hop networked communication using context aware radio communication management
An information handling system functioning as a smart personal connect gateway includes a wireless adapter for communicating with a plurality of wireless links and a storage device for storing a spatial-temporal user profile comprising wireless device usage trend data for a plurality of locations where the smart personal connect gateway has operated. The smart personal connect gateway further includes a positional detector to detect a location of the smart personal connect gateway and an application processor to correlate the wireless device usage trend data to a location and to determine a list of optimal wireless service carriers and available wireless protocols at the location based on a mobile wireless traffic report with a spatial-temporal radio frequency profile indicating signal quality for the plurality of wireless links and the wireless device usage trend data for the location. The smart personal connect gateway application processor selects an international mobile subscriber identity (IMSI) for one of the optimal wireless links for an electronic subscriber identity module (eSIM) programmable to switch between multiple available wireless service carriers and then switches the wireless adapter to the selected optimal wireless link.
Managing transmitter collisions
Various embodiments implemented on a mobile communication device (e.g., a multi-SIM-multi-active communication device) mitigate degraded transmit performance typically experienced by a lower-priority subscription during a Tx collision event in which a higher-priority subscription receives a shared Tx resource of the mobile communication device to the exclusion of the lower-priority subscription. Specifically, in various embodiments, a processor of the mobile communication device may determine when an upcoming transmission of the lower-priority subscription will collide with a scheduled transmission of the higher-priority subscription (i.e., may determine when a Tx collision event will occur between the subscriptions) and may implement one or more Tx collision management strategies in response to determining that the lower-priority subscription's upcoming transmission will collide with a transmission of the higher-priority subscription, thus improving the lower-priority subscription's overall performance.
System and method for portable infotainment via dynamic SIM twinning with temporary service plan transferring in connected car
An apparatus comprises processing circuitry configured to determine that a primary user equipment (UE) entered a vehicle. The processing circuitry is configured to initiates transmission of an entrance notification to a carrier network server notifying that the primary UE entered the vehicle. The processing circuitry is configured to receive an assignment message from the carrier network server. The assignment message indicates that twinning has been configured between the primary UE and the apparatus. The twinning configuration includes a transfer of assignment of a service plan corresponding to the primary UE from the primary UE to the apparatus.
Method of filtering digital signal for maintaining data transmission rate in TDD or TDMA system and communication system adopting the same
Provided is a digital filter implementing a function by using circular convolution of a digital input signal and a unit pulse response of the digital filter in applying a filter to the digital signal.In addition, a configuration sequence change of an output signal, which occurs as a result of digital filtering according to the present invention, in comparison to an input signal, is corrected by inversely performing circular shifting in a transmitter by amount of the configuration sequence change, or by reconstructing a signal after making synchronization and acquiring the signal previous to a time point of the synchronization by amount of the configuration sequence change, in a receiver.
A method and system for self-interference cancellation in a wireless communication device. The wireless communication device can include a first interference detector, a second interference detector, an interference canceler, and a controller. The first interference detector can be configured to detect interference in a received signal. The interference canceler can be configured to perform one or more interference cancellation processes on the received signal. The second interference detector can be configured to detect interference remaining in an interference canceled signal processed by the interference canceler. The controller can be configured to enable or disable the interference canceler based on the detection of the first and/or the second interference detectors.
Multi-tones narrow band RF noise elimination through adaptive algorithm
Various embodiments relate to a device for reducing noise in a received signal, the device including a memory; a processor configured to: receive a signal containing narrow band noise which was transmitted over a channel and received at an analog front end; add two separate delays to the signal to generate a first delayed signal and a second delayed signal; apply an adaptive noise cancellation using the first delayed signal and the second delayed signal to estimate the narrow band noise; and remove the narrow band noise based upon the estimated narrow band noise.
Method and system for an analog-to-digital converter with near-constant common mode voltage
Methods and systems for an analog-to-digital converter (ADC) with constant common mode voltage may include in an ADC comprising a sampling switch on a first input line to the ADC, a sampling switch on a second input line to the ADC, N switched capacitor pairs and M single switched capacitors on the first input line, and N switched capacitor pairs and M single switched capacitors on the second input line: sampling an input voltage by closing the sampling switches, opening the sampling switches and comparing voltage levels between the input lines, iteratively switching the switched capacitor pairs between a reference voltage (Vref) and ground based on the compared voltage levels, and iteratively switching the single switched capacitors between ground and voltages that are a fraction of Vref, which may equal Vref/2x where x ranges from 0 to m−1 and m is a number of single switched capacitors per input line.
Digital modulator entropy source
An electronic circuit system with an input for receiving an analog signal having a frequency and comprising noise, that noise including input referred noise, and the noise fluctuates in a range. The system also comprises a signal path with: (i) an analog to digital converter for providing a digital output value in response to a clock period; (ii) a feedback node; and (iii) circuitry for limiting a signal swing at the feedback node, during a period of the clock period, to be no greater than an RMS value of the noise. The analog to digital converter is further for providing the digital output value in response to the analog signal and the signal swing at the feedback node.
Timing recovery for digital receiver with interleaved analog-to-digital converters
A receiver having analog to digital converters with phase adjustable sampling clocks. A first analog to digital converter converts an analog signal into first digital samples under control of a first sampling clock. A first clock generator adjusts a phase of the first sampling clock based on at least one first phase control signal. A second analog to digital converter converts the analog signal into second digital samples under control of a second sampling clock. A second clock generator adjusts the phase of the second sampling clock based on at least one second phase control signal. A data decision circuit recovers data based on the first and second samples. Feedback circuitry receives the recovered data and generates at least one first phase control signal for the first clock generator and generates at least one second phase control signal for the second clock generator based on the first phase control signal.
Emitter-coupled spin-transistor logic
A switch comprising a spin-transistor and a first control wire. The spin-transistor is configured so that when a magnetic field applied to the spin-transistor is less than a threshold value, the transistor is in a conductive state in which electric current flows through the spin-transistor. When the magnetic field applied to the spin-transistor is greater than the threshold value, the spin-transistor is in a resistive state in which the electric current flowing through the spin-transistor is substantially reduced. The first control wire is for receiving a current to affect the magnetic field applied to the spin-transistor.
Apparatus for automatically configured interface and associated methods
An integrated circuit (IC) includes a first circuit implemented using programmable circuitry of the IC, and a second circuit implemented using hardened circuitry of the IC. The IC further includes a configurable interface circuit to couple the first circuit to the second circuit using ready/valid signaling with a configurable ready-latency value.
Apparatus and method for standby current control of signal path
Apparatuses and methods for standby current control of a signal path in a semiconductor device are described. An example apparatus includes: first and second logic gates coupled in series; a first circuit coupled between the first logic gate and a power supply line that activates the first logic gate responsive to a first control signal; and a second circuit coupled between the second logic gate and the power supply line that activates the second logic gate responsive to a second control signal that is different from the first control signal.
Calibration methods and circuits to calibrate drive current and termination impedance
Described are on-die termination (ODT) systems and methods that facilitate high-speed communication between a driver die and a receiver die interconnected via one or more signal transmission lines. An ODT control system in accordance with one embodiment calibrates and maintains termination resistances and drive currents to produce optimal output swing voltages. Comparison circuitry employed to calibrate the reference resistance is also used to calibrate the drive current. Termination elements in some embodiments are divided into two adjustable resistive portions, both of which are designed to minimize capacitive loading. One portion is optimized to produce a relatively high range of adjustment, while the other is optimized for fine-tuning and glitch-free switching.
Power detector circuit using native transistor
An electronic circuit includes a native N-channel Metal-Oxide-Semiconductor (NMOS) transistor and a P-channel Metal-Oxide-Semiconductor (PMOS) transistor. The gates of the native NMOS transistor and the PMOS transistor and the source of the native NMOS transistor are grounded. The drains of the native NMOS transistor and the PMOS transistors are connected to one another and to an output port, and the source of the PMOS transistor is connected to an input voltage.
System and method for a switchable capacitance
In accordance with an embodiment, an adjustable capacitance circuit comprising a first branch comprising plurality of transistors having load paths coupled in series with a first capacitor. A method of operating the adjustable capacitance circuit includes programming a capacitance by selectively turning-on and turning-off ones of the plurality of transistors, wherein the load path of each transistor of the plurality of transistors is resistive when the transistor is on and is capacitive when the transistor is off.
Load drive control device
Provided is a load drive slope control device that can reduce EMI noise, and power loss and heat generation when a drive transistor is turned on and off, and can prevent excessive high temperature-induced damage to the drive transistor at an excessive high temperature. Disclosed is a load drive control device including: a drive transistor that drives a load; a pre-driver that drives the drive transistor via an ON/OFF control terminal of the drive transistor; a capacitor that is connected to an input side of the pre-driver, a first current source that is ON/OFF controlled by a first signal, and generates current which is charged to the capacitor; and a second current source that is ON/OFF controlled by a second signal, and generates current for discharging the capacitor, in which an output voltage from the pre-driver is changed by charging or discharging the capacitor, the drive transistor is turned on and off by the output voltage from the pre-driver, and a linear ascending gradient and a linear descending gradient of the waveform of a voltage driving the load are obtained by turning on and off the drive transistor.
Control unit for a bridge circuit, and related method and integrated circuit
A control unit is for a bridge circuit. The control unit may include a signal generator configured to generate first and second periodic drive signals for the bridge circuit, and determine a switch-on duration of the first and second periodic drive signals based upon a first digital data value having a first resolution. The control unit may include a controller configured to receive a second digital data value having a second resolution. The second resolution may be greater than the first resolution. The controller may be configured to generate the first digital data value so that, over periods of the first and second periodic drive signals, the first digital data value corresponds to an average of the second digital data value.
Level converter circuit
A level conversion circuit includes: first P-ch and N-ch transistors and second P-ch and N-ch transistors respectively connected in series between first and second power sources; third and fourth P-ch transistors respectively connected between the gates of the second and first P-ch transistors and the drain of the first and second P-ch transistors; and fifth and sixth P-ch transistors respectively connected between the gates of the second and first P-ch transistors and a third power source, wherein differential input signals are applied to the gates of the first and second N-ch transistors, a bias voltage is applied to the gates of the third and fourth P-ch transistors, the gate of the fifth and sixth P-ch transistors are respectively connected to connection nodes of the first P-ch and N-ch transistors the second P-ch and N-ch transistors.
Analog controlled signal attenuation
A method includes providing a resonant attenuation circuit comprising a first active shorting device connected to a proximal end of an inductive element and a second active shorting device connected to a distal end of the inductive element. The method also includes providing a first control signal to the first active shorting device that places the first active shorting device in a region of operation where incremental increases or decreases in voltage change a shorting impedance of the second active shorting device. A signal attenuator includes a signal propagation path and a plurality of shorting units sequentially attached to the signal propagation path and a control circuit configured to control a level of attenuation provided by each shorting unit. The control circuit and a corresponding method activates subsequent shorting units only if all previous shorting units are at least partially activated.
Elastic wave device and method for manufacturing the same
An elastic wave device propagating plate waves includes a stack of an acoustic reflection layer, a piezoelectric layer, and IDT electrode on a supporting substrate. The piezoelectric layer is thinner than a period of fingers of the IDT electrode. The acoustic reflection layer includes low-acoustic-impedance layers and high-acoustic-impedance layers. The low-acoustic-impedance layers are made of SiO2, and the high-acoustic-impedance layers are made of at least one material selected from the group consisting of W, LiTaO3, Al2O3, AlN, LiNbO3, SiN, and ZnO.
Calibration for a tunable RF filter structure
Embodiments of radio frequency (RF) front-end circuitry are disclosed where the RF front-end circuitry includes a tunable RF filter structure and a calibration circuit. The tunable RF filter structure includes (at least) a pair of weakly coupled resonators and defines a transfer function with a passband. The calibration circuit is configured to shape the passband so that the passband defines a center frequency. Additionally, the calibration circuit is configured to detect a phase difference at the target center frequency between the pair of weakly coupled resonators and adjust the phase difference of the pair of weakly coupled resonators at the target center frequency so as to reduce a frequency displacement between the center frequency of the passband and the target center frequency. In this manner, the calibration circuit calibrates the tunable RF filter structure to correct for errors in the center frequency of the passband due to component manufacturing variations.
Audio signal output device and audio output system
An audio signal output device (1) includes an audio signal output portion (15), a volume setting information acquisition portion (15), and a control portion (10). The control portion is configured to calculate the output volume of an external device on the basis of volume information of content and volume setting information of the external device and perform control of lowering the output volume of the external device in the case where the output volume is higher than a prescribed volume threshold.
Transceiver circuit for communicating differential and single-ended signals via transmission lines
A transmit circuit for sending and/or receiving at least one single-ended signal and for sending a differential signal on two transmission lines, including: a differential amplifier for sending signal parts of a differential signal via the two transmission lines, two impedance matching resistances that are situated between the transmission lines, connected in series, for the impedance matching of the differential amplifier; a switch that is connected in series between the impedance matching resistances; at least one single-ended transmit amplifier for sending or receiving a single-ended signal via an associated one of the transmission lines, each of the at least one single-ended transmit amplifiers being connected to a terminal of the switch that is connected, via the corresponding impedance matching resistance to the associated transmission line.
Light sensor readout system and method of converting light into electrical signals
Systems and methods of the disclosed subject matter for converting light into electrical signals are provided including receiving light input and outputting electrical signals proportional to the light input with a sensor, increasing a transimpedance gain of an amplifier to amplify the electrical signals with a T-network of resistors coupled to the amplifier and the sensor, filtering the electrical signals with a filter circuit coupled to the amplifier and the T-network of resistors to increase noise rejection in a predetermined frequency range, and outputting the filtered electrical signals.
Compression control of cascode power amplifiers
Compression control of cascode power amplifiers. A power amplifier module can include a power amplifier including a cascode transistor pair. The cascode transistor pair can include a first transistor and a second transistor. The power amplifier module can include a current comparator configured to compare a first base current of the first transistor and a second base current of the second transistor to generate a comparison signal. The power amplifier module can include a saturation controller configured to maintain the power amplifier out of saturation based on the comparison signal.
Temperature compensated offset cancellation for high-speed amplifiers
An apparatus, system, and method are disclosed for compensating input offset of an amplifier having first and second amplifier output nodes. The method comprises generating a proportional-to-absolute temperature (PTAT) current, generating a complementary-to-absolute temperature (CTAT) current, and selecting, based on the input offset, one of the first and second amplifier output nodes into which a compensation current is to be coupled. The compensation current is based on a selected one of the PTAT current and CTAT current.
Wideband self-envelope tracking RF power amplifier
A wideband self-envelope tracking power amplifier (PA) can use more than a 40-MHz channel bandwidth and improves the envelope bandwidth limit of a self-envelope tracking PAs by ten times. The PA uses an envelope load network, which is based on a general multi-stage low-pass filter. The envelope load network located between an RF choke inductor and main DC power supply provides a dynamically modulated PA supply voltage without using a dedicated envelope amplifier. An input terminal of the network connects a main PA via an RF choke inductor to an input of low-pass filter. An output terminal is connected to the low-pass filter via an envelope choke inductor and to a direct current (DC) power supply. A DC blocker is connected between the output of the low-pass filter and ground by a termination resistor.
Signal frequency conversion circuit and signal frequency conversion method
A signal frequency conversion circuit is configured to reduce power consumption and resource costs of the signal frequency conversion circuit. Embodiments of the present disclosure include a primary-stage frequency conversion module and at least one subsequent-stage frequency conversion module that is in series connection, where the primary-stage frequency conversion module includes a first filter and a numerically controlled oscillator NCO, and an output of the first filter is connected to an input of the NCO; each subsequent-stage frequency conversion module includes a second filter and a subsequent-stage frequency conversion unit, and an output of the second filter is connected to an input of the subsequent-stage frequency conversion unit; and an output of the NCO is connected to an input of a second filter in a first subsequent-stage frequency conversion module in the at least one subsequent-stage frequency conversion module in series connection.
Double balanced mixer
A FET based double balanced mixer (DBM) that exhibits good conversion gain and IIP3 values and provides improved linearity and wide bandwidth. In one embodiment, a first balun is configured to receive a local oscillator (LO) signal and generate two balanced LO signals that are coupled to two corresponding opposing nodes of a four-node FET ring. A second balun is configured to pass an RF signal on the unbalanced side. The FET ring includes at least four FETs connected as branches of a ring, with the source of each FET connected to the drain of a next FET in the ring. Each FET is preferably fabricated as, or configured as, a low threshold voltage device having its gate connected to its drain, which causes the FET to operate as a diode, but with the unique characteristic of having close to a zero turn-on voltage.
Frequency modulator and magnetic resonance tomography system with a frequency modulator
A frequency modulator includes a first pair of diodes with two capacity diodes, and a second pair of diodes with two additional capacity diodes. The second pair of diodes is employed in parallel. The frequency modulator also includes a first modulator input for reception of a first modulation signal and a second modulator input for reception of a symmetrical second modulation signal. Both pairs of diodes are coupled to an oscillator unit.
Terminal for solar junction box
A solar junction box for a solar panel having at least one photovoltaic cell and a foil electrically connected to the at least one cell includes a housing having a base and walls defining a cavity. The housing is configured to be mounted to the solar panel. The base has at least one foil opening. A protection device is received in the cavity. A terminal is received in the cavity. The terminal has a protection device contact terminated to the protection device and a foil contact being crimped to the foil to electrically connect the terminal to the foil.
Solar panel charging inhibitor
A solar panel assembly includes a solar panel having a frame and a solar harvesting surface held by the frame; and a shield assembly having a solar shield movable between an operating position and a shielding position and a heat sensitive element. The solar shield is configured to automatically assume the shielding position after the heat sensitive element reaches and/or exceeds an activation temperature.
East-west photovoltaic array with spaced apart photovoltaic modules for improved aerodynamic efficiency
A solar array with successive rows of photovoltaic modules angled in opposing directions forming peaks and valleys between the rows with the valleys (i.e.: lower sides of the photovoltaic module rows) being mounted close together and the peaks (i.e.: upper sides of the photovoltaic module rows) being mounted far apart to improve system aerodynamics and permit ease of access for installers. Included is a system for connecting the upper sides of the photovoltaic modules to connectors that slide on bars extending between upper and lower mounting bases and for pivot locking the lower sides of the photovoltaic modules to the lower mounting bases.
Driving apparatus for electric motor
A driving apparatus for driving an electric motor, such as a synchronous motor or an induction motor, and more particularly to a driving apparatus which performs a vector control based on an output current of an inverter. The driving apparatus of the present invention includes an inverter, a current detector configured to detect an output current of the inverter, and a vector controller configured to transform the output current, detected by the current detector, into a torque current and a magnetization current and to control the torque current and the magnetization current. The vector controller includes a target-output-voltage determination section configured to determine a target output voltage from the torque current, the magnetization current, an angular velocity of the rotor, and motor constants, and a target-magnetization-current determination section configured to determine a magnetization-current command value based on a deviation between the torque-voltage command value and the target output voltage.
Control apparatus for AC rotary machine and control apparatus for electric power steering
This invention is concerning a control apparatus for an AC rotary machine including: an AC rotary machine that includes a first winding and a second winding which have a phase difference; a first current detection unit that detects a current of the first winding; a second current detection unit that detects a current of the second winding; a control unit that calculates a first voltage command and a second voltage command on the basis of a detected current value; and a first detectability determination unit that determines a detectability of the current of the first winding, detected by the first current detection unit, on the basis of at least one of the voltage commands , wherein the control unit calculates the first voltage command and the second voltage command on the basis of the detected current value of the second winding when the current of the first winding is undetectable.
Motor protection relay and method for starting motor of motor protection relay
The present disclosure relates to a motor protection relay and a method for starting a motor of the motor protection relay, and particularly, to a motor protection relay capable of softly starting a motor, without a separate starting device, and performing soft starting of the motor more stably, effectively, and simply, by variably controlling start power for starting the motor to the motor through controlling of the relay itself and supplying the variably controlled start power to the motor, and a method for starting a motor thereof.
System and method for electric power generation using structured piezoelectric arrays
A piezoelectric power generation system includes a housing, the housing defining an opening therethrough. The piezoelectric power generation system further includes a support structure disposed within the housing, and one or more piezoelectric elements disposed on a surface of the support structure within the housing. Movement or vibration in the support structure is translated to the one or more piezoelectric elements, which actuates the one or more piezoelectric elements. The one or more piezoelectric elements generate power when actuated. The piezoelectric power generation system further includes one or more exciters coupled to the support structure. The exciters move or vibrate when acted on by a flow of fluid, wherein the motion of vibration of the one or more exciters is translated to the support structure and ultimately to the one or more piezoelectric elements.
Vibration power generator and power generator
A vibration power generator configured to generate power by displacement between an electret group having a plurality of electrets and an electrode group having a plurality of electrodes in a relative movement direction in response to an external vibration, includes a casing in which the electret group and the electrode group are disposed, a fixed member in which one of the electret group and the electrode group is disposed, the fixed member being fixed to a side of the casing, and a movable member in which the other of the electret group and the electrode group is disposed. The movable member is disposed in the casing such that the movable member is relatively movable in response to the external vibration while opposed to the fixed member.
Control method of inverter circuit
A control method of an inverter circuit includes the following steps. Firstly, a half cycle of the AC output voltage is divided into a first stage and a second stage. Then, the upper switch element and the lower switch element are controlled to be operated at a first switching frequency lower than a preset threshold frequency in the first stage, so that the inverter circuit is operated in a continuous current mode. Then, the upper switch element or the lower switch element of the bridge arm is controlled to be operated at a second switching frequency in the second stage, so that the upper switch element and the lower switch element are turned on at a preset voltage level and the inverter circuit is operated at a discontinuous current mode boundary mode.
Resonant inverter and resonance power supply apparatus
A resonant inverter includes first and second switches, first and second capacitive elements, a first coil, a second coil, a third coil, and a third capacitive element. The first and second switches are alternately turned on and off. The first and second capacitive elements are connected in parallel to the first switch and the second switch, respectively. The first coil is disposed between the first switch and an input voltage terminal. The second coil is disposed between the second switch and the input voltage terminal. The third coil and a third capacitive element are connected in series to each other and connected in parallel to a series circuit of the first and second coils. The first and second capacitive elements and the first and second coils constitute a plurality of first resonant circuits. The third coil and the third capacitive element constitute a single second resonant circuit.
Power converter with a power buffer circuit whose buffered power is smaller than an AC component of a pulsating power
A converter full-wave rectifies a single-phase voltage, and outputs the rectified voltage across DC power supply lines. An inverter receives the rectified voltage, and supplies a three-phase AC current to an inductive load. A power buffer circuit is connected between the DC power supply lines. The power buffer circuit includes a discharge circuit and a charge circuit. The discharge circuit includes a capacitor and a switch connected in series to each other. The discharge circuit is configured, for example, by a boost chopper, and includes a switch, a reactor, and a diode. The power buffer circuit provides and receives part of pulsations of a power input into the converter to and from the DC power supply lines.
Power management utilizing synchronous common coupling
The present disclosure relates to power management apparatuses and systems utilizing synchronous common coupling. A power management apparatus may include a synchronous common coupling, a plurality of ports, and a plurality of electrically isolated stacks connected through the synchronous common coupling. Each electrically isolated stack may include at least one stage, each stage including a source/load bridge, a flux bridge, and a direct current (DC) bus. The source/load bridge may be connected to a source or load through one of the plurality of ports, the flux bridge may be connected to an electrically isolated winding in the synchronous common coupling, and the flux bridge may be connected to the source/load bridge through the DC bus.
Power conversion system including plurality of power converters connected in parallel to load
An uninterruptible power supply system includes a plurality of uninterruptible power supply devices, and each uninterruptible power supply device includes a conversion circuit, an inversion circuit, a DC positive bus, a DC negative bus, and a capacitor. The uninterruptible power supply system includes a first wiring connected between DC positive buses of two uninterruptible power supply devices, and a second wiring connected between DC negative buses of the two uninterruptible power supply devices. The operation of all uninterruptible power supply devices is stopped in response to an absolute value of a current flowing through a bundle of the first and second wirings exceeding an upper limit value.
Systems and methods for overvoltage protection for LED lighting
System controller and method for a power converter. For example, a system controller for a power converter includes a logic controller configured to generate a modulation signal, and a driver configured to receive the modulation signal, generate a drive signal based at least in part on the modulation signal, and output the drive signal to a switch to affect a current flowing through an inductive winding for a power converter. Additionally, the system controller includes a voltage-to-voltage converter configured to receive a first voltage signal, the modulation signal, and a demagnetization signal, and to generate a second voltage signal based at least in part on the first voltage signal, the modulation signal, and the demagnetization signal.
Inrush control power supply
In one embodiment, a power apparatus includes a buck converter including a first capacitor, a first inductor and a first switch for connection with a direct current power supply, wherein when the first switch is closed and the buck converter is connected to the direct current power supply, the first capacitor and the first inductor are connected in series to the direct current power supply, a full-bridge inverter including at least four switches including the first switch, a second, third and fourth switch so that the first switch is shared by the inventor and buck converter, the inverter being operative to convert direct current to alternating current by alternating (a) closing the first and fourth switch with the second and third switch open, and (b) closing the second and third switch with the first and fourth switch open, and a transformer to step down an output of the inverter.
Display apparatus, power supply and power supply method thereof
A display apparatus, a power supply and a power supply method are disclosed. A power supply for a display apparatus includes a switching driver configured to perform a switching operation and output an operation voltage; a first charger/discharger configured to set timing of the switching operation; and a controller configured to control the switching driver to disable the switching operation until a voltage previously charged in the first charger/discharger is discharged up to a first voltage, when the display apparatus is in a power saving mode.
Power converter controller with stability compensation
A switch mode power converter includes a primary side, an energy transfer element, and a secondary side. The secondary side includes output terminals coupled to a load and an output capacitance across the output terminals. The secondary side further includes a compensation signal generator—configured to generate a compensation signal. The compensation signal compensates charging the output capacitance with power transferred from the primary side to the secondary side. The secondary side further includes computational circuitry configured to output an adjusted compensation signal that compensates, based on the compensation signal, one of an output sense signal representative of an output signal at the output terminals and a reference signal representative of a desired output voltage of the switch mode power converter. The secondary side further includes a comparator to compare the adjusted compensation signal with the other one of the output sense signal and the reference signal.
Methods and systems for controlling a boost converter
Methods and systems are provided for control operation of a boost converter. The boost converter includes an input, an output, and a plurality of paths electrically connecting the input to the output. The boost converter also includes a plurality of switches disposed along the paths to control current flow between the input and the output. The system includes a controller. The controller receives a desired current to be supplied at the output. The controller determines which of the paths to utilize based at least in part on the desired current. The controller controls the switches based at least in part on the determination of which of the paths to utilize.
Open-circuit detection in a switching structure
A power supply device, including: a switching structure for controlling a continuous current in an inductive load on the basis of at least one control signal of a power switch; and anomaly detection elements, generating at least one item of information about the detection of an anomaly of the open circuit type in the wiring from the load to the switching structure. The anomaly detection elements include: elements for measuring the current flowing in the inductive load; elements for comparing the measured current continuously with a threshold value; and elements for counting a time interval during which the measured current remains continuously below the threshold value, delivering the anomaly detection information if the counted time interval>a reference time interval, which is k times greater than a period of the control signal, where k>1, and if the duty cycle of the control signal>a threshold value.
Method for portable sensor-less DC-DC converter control loops
A portable control loop is provided for current sensing DC-DC converter. The DC-DC converter includes a power circuit, an external circuit, a control circuit and a duty cycle integration circuit. The power circuit comprises at least one controllable switch to regulate current from an input voltage. The external circuit comprises at least one output inductor and a capacitor. The duty cycle integration circuit receives a voltage differential signal across the output inductor and generates a compensation signal based at least on the voltage differential signal. The control circuit receives the compensation signal and feedback from load voltage and generates a control signal to control the controllable switch within the power circuit.
Intermediate voltage circuit current converter in five-point topology
An intermediate voltage circuit current converter having two current converter sections arranged in series on the direct voltage side is disclosed. The current converter section has a capacitor connected in parallel with two bridge modules that are connected in series with each other. The output of the current converter section is located on the series connection between the two bridge modules and the outputs of the two current converter sections are connected to a further bridge module. Each bridge modules comprises a series connection of two power semiconductor units. The intermediate potentials on the connection between the two power semiconductor units in each of the bridge modules are electrically connected to one another by a further capacitor, and the intermediate potential of the further bridge module provides the phase connection of the intermediate voltage circuit current converter for a given phase of the intermediate voltage circuit current converter.
Ultra-low power and ultra-low voltage bandgap voltage regulator device and method thereof
A family of bandgap embodiments are disclosed herein, capable of operating with very low currents and low power supply voltages, using neither any custom devices nor any special manufacturing technology, and fabricated on mainstream standard digital CMOS processes. As such, manufacturing cost can be kept low, manufacturing yields of digital CMOS system-on-a-chip (SOC) that require a reference can be kept optimal, and manufacturing risk can be minimized due to its flexibility with respect to fabrication process node-portability. Although the embodiments disclosed herein use novel techniques to achieve accurate operations with low power and low voltage, this family of bandgaps also uses parasitic bipolar junction transistors (BJT) available in low cost digital CMOS process to generate proportional and complementary to absolute temperature (PTAT and CTAT) voltages via the base-emitter voltage (VEB) of BJTs and scaling VEB differential pairs to generate the BJTs thermal voltage (VT).
Control circuit and associated method for switching converter
A control circuit for switching converter has an ON signal generating circuit, an OFF signal generating circuit, a first comparator, a second comparator and a logic circuit. The switching converter has a high switch and a low side switch connected in series. The ON signal generating circuit provides an ON signal based on a reference signal and a feedback signal. The OFF signal generating circuit provides an OFF signal. The first comparator provides a first comparing signal based on a comparing result between a first threshold and a current through the high side switch. The second comparator provides a second comparing signal based on a comparing result between a second threshold and a current through the low side switch. The logic circuit provides a first switching signal to control the high side switch ON and OFF and a second switching signal to control the low side switch ON and OFF.
Current compensation circuit and light apparatus comprising the same
A current compensation circuit includes a current compensator configured to measure a compensation time in which a sensing voltage generated by a driving current passing through a driving switching element drops below a first certain voltage in response to the driving switching element being turned on and configured to delay a turn-off point of the driving switching element from a point in which the sensing voltage reaches a second certain voltage during the measured compensation time and a switching controller configured to provide a switching control signal at a turn-off point of the delayed driving switching element. Such a current compensation circuit accurately controls an average driving current regardless of change of an input voltage and an output voltage and is able to use a peak current mode control method to operate a light emitting diode.
Method for controlling a multiphase interleaving converter and corresponding controller
A method is provided for controlling a converter of the multiphase interleaving type. According to the method, there is detected when a change of the load applied to an output terminal of the converter occurs. All the phases of the converter are simultaneously turned off, and a driving interleaving phase shift is recovered so as to restart a normal operation of the converter. A controller for carrying out such a method is also provided.
A circuit comprises a first circuit and a second circuit. The first circuit is configured to operate at a first-circuit supply voltage value, and to generate a first reference voltage value based on a voltage rated for transistors in a second circuit. The second circuit is configured to operate at a second-circuit supply voltage value, to receive a first signal and the first reference voltage value, and to clamp an input node of the second circuit based on the first reference voltage value. The second-circuit supply voltage value is less than the first-circuit supply voltage value. The first signal is configured to swing between a low voltage value and a voltage value higher than the second-circuit supply voltage value.
Energy recovery snubber
An energy recovery snubber circuit for a power converter which includes a flyback transformer driven by a converter switch is disclosed. The snubber circuit includes two capacitors which are connected such that, when the snubber circuit is connected to a primary winding of the flyback transformer, the capacitors are charged in series by current flowing in a first direction in the primary winding when the converted switch is turned OFF, to recover energy stored in the leakage inductance of the transformer, and discharged in parallel to cause current flow in a second direction in the primary winding of the transformer, to thereby transfer the recovered energy to the transformer.
Protection from hard commutation events at power switches
A driver of a power switch is described that is used to supply power to a load for at least a switching cycle of the power switch. The driver includes at least one output that contains a high-ohmic output and a low-ohmic output. The high-ohmic output is enabled during at least one portion of a first phase of the switching cycle when the power switch is switched-off. The low-ohmic output is enabled during a second phase of the switching cycle when the power switch is switched-on and during any remaining portion of the first phase other than the at least one portion of the first phase when the high-ohmic output is enabled.
Protection from hard commutation events at power switches
A system is described that includes a half-bridge, a first driver, a second driver, and a controller unit. The half-bridge includes a first switch coupled to a second switch at a switching node. The first driver is configured to drive the first switch and the second driver is configured to drive the second switch. The controller unit is configured to determine whether a hard commutation event is likely to occur at the half-bridge during a future switching cycle, and responsive to determining that the hard commutation event is likely to occur during the future switching cycle, control the first driver and the second driver to activate at least one hard commutation countermeasure.
Method for manufacturing magnet-conductive device and glue-injectable punch structure thereof
A method for manufacturing a magnet-conductive device includes performing a punch process to a plate by a glue-injectable punch structure, wherein the glue-injectable punch structure includes a punch head and a control member. The punch head comprises an accommodating cavity, an injection hole and an inlet, and a supply channel is formed by the accommodating cavity, the injection hole and the inlet. The control member selectively obstructs the supply channel or permits the supply channel into conduction. By using the method for manufacturing the magnet-conductive device, the stack between plural plates is simplified, and the coupling strength between adjacent plates is enhanced. In addition, this invention considers the gel between adjacent plates to be insulating medium to lower the iron loss of the magnet-conductive plates.
Low frequency micro oscillator
A low frequency micro oscillator-driven oscillating system including at least one electric oscillation generator operative to produce oscillations at a first frequency, at least one oscillated article, at least one intermediate element, having at least one resonant frequency lower than the first frequency, the at least one intermediate element being oscillated by the at least one electric oscillation generator and being operative to cause the at least one oscillated article to oscillate and a power supply circuit, supplying electrical power intermittently in a periodic manner to the at least one electric oscillation generator, thereby causing the at least one oscillated article to oscillate at at least one second frequency, lower than the first frequency.
Electric drive device and electric power steering device
In construction of an electric drive device such as an electric power steering device or the like, there is employed a cylindrical metal housing that has therein in order first, second, third and fourth spaces coaxially arranged to respectively house therein a power circuit part, a power conversion circuit part, a control circuit part and an electric motor, a circular heat transfer metal substrate is arranged in the cylindrical metal housing between the first and second spaces and the circular heat transfer metal substrate has a cylindrical outer wall that is in contact with a cylindrical inner surface of the cylindrical metal housing, one flat surface to which a basal metal plate of the power circuit part is intimately connected and another flat surface to which a basal metal plate of the power conversion circuit part is intimately connected.
Water resistant varnished motor components
For improved water resistance, the stator assembly of a d.c. brushless motor is encapsulated in an overmolding formed from a mixture of a thixotropic, flexible epoxy resin and glass fibers. The overmolding may be applied to the stator assembly by a vacuum pressure impregnation process. The overmolding may also encapsulate a Hall effect circuit board and sensors of the motor.
Winding insulation arrangement for axial flux machines
A stator 20 for an axial flux machine such as a motor or generator. The stator includes a stator core 32 having a back plane 24 which in use is disposed perpendicularly about a rotational axis of the machine. A plurality of teeth 26 extend axially from the back plane so as to form winding receiving slots 28 between adjacent teeth. The stator also includes an electrical winding 30 including a plurality of coils 32, each coil being located about a tooth of the stator core and being electrically isolated from the stator tooth by means of an insulating former 34 having a shape which closely conforms to the shape of the stator tooth. The coils 32 are interconnected to form the winding 30. A method of constructing a stator is also disclosed.
Rotor structure for electric rotating machine
A rotor structure for an electric rotating machine has a rotor, a plurality of strip-shaped permanent magnets which are arranged in a circumferential direction of the rotor, each of which penetrates the rotor in an axial direction of the rotor, flux barriers which are air gaps provided at positions corresponding to width-direction end portions of the permanent magnets to face the width-direction end portions of the permanent magnets, and demagnetization prevention holes, each of which is provided at a position in a vicinity of a corresponding one of the flux barriers and on an opposite side of the flux barrier from a stator and configured to reduce demagnetization at a corresponding one of the width-direction end portions of the permanent magnets.
Superconducting synchronous motor
A superconducting synchronous motor having a simple and stable structure is provided. The superconducting synchronous motor according to one embodiment of the present invention comprises: a rotary shaft; a rotation core mounted at the rotary shaft so as to be rotated by connecting with the rotary shaft; and hooked magnetic poles extending from one end of the rotation core in a longitudinal direction. Each of the hooked magnetic poles is composed of first and second inductors of a magnetic material alternately engaged with each other and a superconducting wire to be wound, and comprises a first superconducting field winding and a second superconducting field winding fixed closely at the other end of a first inductor rotation core and the other end of a second inductor rotation core, respectively. Each of the first superconducting field winding and the second superconducting field winding excites the first inductor and the second inductor to different poles.
Stator core for an electronically commutated direct current motor and method for producing a stator
A stator core for an electronically commutated DC motor with an internal rotor having a plurality of radially inwardly directed pole cores which at their periphery are integral with back iron segments and the back iron segments are integral with adjacent back iron segments via webs, wherein the back iron segments alternate with the webs and jointly form a seamless closed one-piece ring. A method of ensuring that in the case of a stator core of this class, upon a reduction of the stator diameter and reduction of the pole distances after winding, a clearly defined end position of the adjoining regions can be assumed, and that for this process, only minimal forces are necessary, in which damage to the stator core is not to be expected, and that at the end of the process only a very small and uniform air gap remains at a lowest possible spring-back.
Wireless power system with associated impedance matching network
A wireless power system for powering a device having an electronic display includes: a device resonator including a loop of conductive material, the device resonator being coupled with an electronic display component; a matching network coupled with the loop of conductive material and including capacitive elements; and power and control circuitry coupled with the matching network at two terminals and configured to connect with a load of the electronic display component; wherein the matching network is configured to provide voltages of equal magnitude and opposite sign at the terminals when coupling power from the device resonator to the power and control circuitry; and wherein the device resonator is configured to wirelessly receive power from a source resonator via an oscillating magnetic field generated by the source resonator.
Power-receiving device, receiving power regulation method, and semiconductor device
Provided is a power-receiving device according to at least one embodiment includes: a transmission/reception unit (2) including a resonant circuit having an antenna (2a) configured to receive a power transmitted from a contactless charging device (50) and to transmit and receive data to and from the contactless charging device (50); a charge control unit (5) configured to perform power source control; and a control unit (3) configured to generate control state data indicating a charging state of the secondary cell (6) and/or a power source state of an apparatus main unit (30) operated with the secondary cell (6) and to transmit the control state data to the contactless charging device (50). The control unit (3) has a power-receiving mode in which normal power supply is performed and a regulation mode in which the received power is regulated by regulating a resonant frequency of the resonant circuit.
Vehicular electrical architecture of both wireless power and communication peripherals using MRC
A system for providing power signals to peripheral devices on a vehicle using magnetic resonance coupling. The system includes a transmitter circuit having a variable current source, a base coil and a variable capacitor, where the current source and the capacitor are tuned to provide a predetermined AC current to the base coil so as to generate an oscillating magnetic field at a predetermined frequency. The system also includes a receiver circuit for each peripheral device, where each receiver circuit includes a receiver coil and a rechargeable power source. When the base coil is tuned to the receiver coil the power source can be recharged through magnetic resonance coupling to power the device. The transmitter circuit can be on the vehicle or can be separate from the vehicle, such as in a charging pad.
Microprocessor controlled class E driver
A charger including a class E power driver, a frequency-shift keying (“FSK”) module, and a processor. The processor can receive data relating to the operation of the class E power driver and can control the class E power driver based on the received data relating to the operation of the class E power driver. The processor can additionally control the FSK module to modulate the natural frequency of the class E power transformer to thereby allow the simultaneous recharging of an implantable device and the transmission of data to the implantable device. The processor can additionally compensate for propagation delays by adjusting switching times.
Battery pack for selectively setting a high capacity mode having a high charge capacity until a full charge of a secondary battery
A controlling and computing portion for controlling charge or discharge of a secondary battery comprises an operation mode setting portion for selectively setting a high capacity mode using a first voltage or a long life mode using a second voltage lower than the first voltage, a remaining capacity calculating portion for calculating a relative state of charge from a remaining capacity of the secondary battery and a full charge capacity, a cycle number calculating portion for calculating a cycle number from a calculation result of the remaining capacity calculating portion, and a charge end voltage setting portion for decreasing the first voltage based on the cycle number, and setting the second voltage at a voltage left by subtracting a predetermined voltage from the first voltage in a case where the first voltage becomes equal to or less than a voltage obtained by adding a predetermined value to the second voltage.
Adaptive battery pack
According to at least one aspect, embodiments herein provide an adaptive battery pack module comprising a Li-ion battery, a low-voltage bus coupled to the Li-ion battery, a bi-directional DC-DC converter coupled to the low-voltage bus, a low-voltage output coupled to the low-voltage bus, a high-voltage output, and a high-voltage bus coupled between the bi-directional DC-DC converter and the high-voltage output, wherein the low-voltage output is configured to be coupled to at least one Li-ion battery of at least one external battery pack module, and wherein the bi-directional DC-DC converter is configured to receive DC power from the Li-ion battery and the at least one Li-ion battery of the at least one external battery pack module via the low-voltage bus, convert the received DC power into output DC power, and provide the output DC power to the high-voltage bus.
Electronic device to be directly charged by a charging device
An electronic system may include a charging device and an electronic device. The charging device may include an input port, a charge circuit, a storage, and a connector device. The charging device may receive a direct current (DC) voltage at the input port. The charge circuit may receive the DC voltage and provide a charged voltage to the storage. The electronic device may include a body, a battery, a first pad directly on the battery and a second pad directly on the battery. The battery may receive the DC charged voltage when the electronic device is coupled to the charging device.
Dynamo docking station
A self charging portable power source docking station system for use with automobiles that converts mechanical energy into electrical energy.
Restart protection for battery-operated electrical units
A protective system for an electric unit operated by an installable battery pack includes: a control device configured to activate the electric unit in the case of the installed battery pack by operating a main switch; a contact device of the electric unit and a contact device of the battery pack including mutually complementary contact elements, which in each case form a first and a second interface for producing a first and a second electrical connection between the electric unit and the battery pack. In this instance, the contact devices are configured, during the installing of the battery pack, to produce the first electrical connection before the second electrical connection in time.
Battery management system for transmitting secondary protection signal and diagnosis signal using a small number of insulation elements
Disclosed is a battery management system for transmitting a secondary protection signal and a diagnosis signal using a small number of insulation elements. N battery management units included in the battery management system transmit at least two pieces of data via one communication line through time division. N data signals transmitted from the N battery management units are transmitted in a sequential order or are mixed to one signal and transmitted to an external device.
Wirelessly charged battery system
The disclosure features power transmitting apparatus for wireless power transfer to a receiver that includes a housing having a form factor that corresponds to a container featuring lateral surfaces, a bottom surface, and an opening opposite the bottom surface, a first coil formed by a continuous path of electrically conductive material and featuring a plurality of non-planar loops that conform to a first pair of opposite lateral surfaces and to the bottom surface, and a second coil formed by a continuous path of electrically conductive material and featuring a plurality of non-planar loops that conform to a second pair of opposite lateral surfaces and to the bottom surface.
Wireless power multi-coil mutual induction cancellation methods and apparatus
This invention describes a method and apparatus to cancel the mutual inductance between mutually coupled transmit coils, each of the transmit coils fed by individual power amplifiers, and the transmit coils all sharing a common ground with the power amplifiers. The methods and systems disclosed consist of coupling the return legs of each transmit coil to a mutual inductance cancellation circuit near a common ground return connection. The cancellation circuit uses a combination of inductors and capacitors to bridge various combinations of the transmit coils without physically connecting the “bridged” transmit coils. Transmit coils “bridged” using inductors have positive mutual inductance added to them, while transmit coils “bridged” using capacitors have negative mutual inductance added to them. Additionally, manipulation of the transmit coil overlap of overlapping transmit coils and/or manipulation of the location of the cancellation circuit can be used finely tune the mutual inductance between the transmit coils.
Providing a vehicle with electric energy using induction and a rectifier
An arrangement for providing a vehicle, in particular a track bound and/or road vehicle, with electric energy, comprising a receiving device 1 adapted to receive an alternating electromagnetic field and produce an alternating electric current by electromagnetic induction. The receiving device comprises three phase lines, 2a, 2b, 2c, connected on one side to a common star point 5, and on the other side to a bridge rectifier 10. Each phase line includes an inductance 3a, 3b, 3c and a capacitance 4a, 4b, 4c having a resonant frequency. The rectifier comprises a number of controllable switches 12, 13 and a control device to switch the switches on and off at a frequency smaller than the resonant frequency. During operation the incident electromagnetic field induces a voltage in the inductances and a corresponding alternating current flows through the phase lines, is rectified by the rectifier, and is provided to the load 17.
Wireless power receiver and method for controlling the same
A wireless power receiver that receives wireless power from a wireless power transmitter and a control method thereof are provided, wherein the wireless power receiver receives the wireless power from the wireless power transmitter; rectifies the wireless power; monitoring a voltage value of the rectified wireless power; determines whether a ripple of the voltage value of the wireless power is greater than or equal to a preset threshold; and if the ripple of the voltage value of the wireless power is greater than or equal to the preset threshold, changes at least one element value of the wireless power receiver to suppress the ripple below the preset threshold.
Energy storage system
Systems and methods for controlling power flow to and from an energy storage system are provided. One energy storage system includes an energy storage device and a bidirectional inverter configured to control a flow of power into or out of the energy storage device via a plurality of phases. The energy storage system further includes a controller configured to control the bidirectional inverter based on a load condition on one or more phases. The controller is configured to control the bidirectional inverter to store power generated by a generator set in the energy storage device and transmit power from the energy storage device to a load driven by the generator set in response to detecting a load imbalance between the phases.
Method and system for power system stabilization using prediction confidence based on high-frequency components of power command value
A power system stabilization method includes: receiving a power command value from a power control center that monitors a power system; transmitting the power command value to a power supply device; causing the power supply device to supply power to the power system according to the power command value; generating a prediction command value according to past power command values received from the power control center, the prediction command value being a prediction value of a power command value to be transmitted from the power control center next after the power command value; transmitting the prediction command value to a power supply device; causing the power supply device to supply power to the power system according to the power prediction command value; receiving the next power command value from the power control center; transmitting the next power command value to the power supply device.
Solar energy generation system, measurement module and positioning method
A solar energy generation system a measurement module and a positioning method are disclosed herein. The positioning method is adaptable to a power generation system having AC generation modules. Each of the AC generation modules generates an output current and is electrically connected to each other in a power-supply network. The positioning method includes the following operations: (a) measuring AC currents or node voltages generated by the AC generation modules at different positions in the power-supply network to obtain current parameters or voltage parameters; and (b) determining a sequence of relative positions of the AC generation modules by calculating the current parameters or the voltage parameters.
A moisture sensor includes one or more electrodes and sensor circuitry configured to detect the presence of moisture by detecting a change in an electrical measurement of the one or more electrodes. In response, the sensor may signal a component to perform an action. In some examples, capacitance and/or resistance between a pair of electrodes may be monitored, such as a pair of electrode sheets or meshes positioned in passage of a device that are separated by a gap. In various examples, a first electrode may be mounted cantilever to a second electrode and the presence of moisture between the electrodes may pull a free end closer to the second electrode. In some examples, the presence of moisture may cause bridging of a gap between two or more electrodes to complete or corrosion of a portion of an electrode to result in a change of resistance that can be detected.
Electric-wire protection device
An electric-wire protection device that protects an electric wire by cutting off power to the wire when its temperature is elevated above a predetermined value is presented. The device includes switching means to control the conduction of power to the wire, current measuring means to measure a current in the wire, environment temperature detecting means to detect a temperature of the environment surrounding the wire, electric-wire temperature calculating means to calculate the temperature of the wire using the value of the current in the wire and the environment temperature, limiting means to stop the conduction of power to the wire when the temperature is greater than or equal to a predetermined value, peripheral component current measuring means to measure the current flowing to a component at the periphery of the environment temperature detecting means, thermal influence acquisition means to obtains an amount of temperature increase caused by the component at the environment temperature detecting means, and environment temperature correcting means to correct the environment temperature based on the amount of temperature increase.
Cover assemblies and methods for covering electrical cables and connections
A pre-expanded cover assembly for protecting a cable splice connection including a cable, the cable including an electrical conductor surrounded by a cable insulation layer, includes a splice body assembly and a removable holdout. The splice body assembly includes a tubular, cold-shrinkable, electrically insulative, elastomeric splice body having an interior surface defining an interior passage. The splice body assembly further includes a tubular layer of a conformable medium pre-mounted on the interior surface of the splice body. The conformable medium is a flowable material having a high electrical permittivity. The splice body assembly is mounted on the holdout such that the holdout maintains the splice body in an elastically radially expanded state, and the holdout is selectively removable from the splice body to permit the splice body to elastically radially contract. The layer of the conformable medium is positioned and configured such that, when the pre-expanded cover assembly is positioned adjacent the cable splice connection, the holdout is removed from the splice body, and the splice body elastically radially contracts onto the cable splice connection, the layer of the conformable medium will be radially interposed between and engage each of the interior surface of the splice body and an opposing interface surface of the cable insulation.
Long-size object fixture
Fixture including a band and a holding member enables a long-size object to be held on a mounting member regardless of the holding member thickness. With the locking member on one side of the mounting member, one end of the band extends through a slot in the mounting member and through a first through-slot of the holding member, a contact surface of the holding member abuting the mounting member. The band extends around the long-size object held on a holding member holding surface, and through a second through-slot to a surface away from the holding surface and the abutting surface.
Mounting bracket for electrical or communication device
A mounting bracket for a junction box includes a face plate, a first leg extending from the face plate, a second leg extending from the face plate, and a leg connector extending between and interconnecting the first and second legs.
Electrical box receptacle mount
A receptacle assembly for attachment to a mounting surface is provided and includes a receptacle mount having a flange attachable to the mounting surface. A deck of the receptacle mount extends from the flange opposite the mounting surface and a hood extends from the deck opposite the mounting surface. An electrical box is attachable to the rearward side of the receptacle mount and is disposed entirely between a forward edge of the hood and a back of the flange of the receptacle mount, such that none of the electrical box is recessed into the mounting surface.
Splice case alignment cutouts
A splice case alignment cutout is provided. The splice case alignment cutout may include a body having an interior surface and an outer surface. The body may be configured to have a length and a width, wherein the body is configured to releasably attach to one of a left side distal end or right side distal end of a back cover member. The splice case alignment cutout may further include an endplate seating channel spanning the length of the body along the interior surface of the body. The endplate seating channel may be configured to allow a rim of an endplate to seat into the interior surface of the frame. When the endplate is seated in the endplate seating channel and releasably attached to the back cover member, the endplate seating channel may be configured to align the endplate with respect to the back cover member.
Duct rod system for installing an elongated element in a conduit
A duct rod system to be pushed in a conduit of a defined configuration for installing an elongated element in the conduit and comprising at least one rod having a flexible main body, the flexible main body having a bending stiffness arrangement defined in relation to the defined configuration of the conduit to permit a friction reduction of the flexible main body in the conduit.
Method of extracting a jacket of a gas insulated substation (GIS) under a metal casing
The invention relates to a removable stabilizer for a spacer casing (24a-24f) of an electrical installation of the GIS type (20), the spacer casing (24a-24f) comprising a first opening (33) as well as a conductor (30b) provided with a bore (34), the removable stabilizer (29) comprising a plug (29a) configured to be introduced via the first opening (33) into the spacer casing (24a-24f), the plug being designed to penetrate into the bore (34) of the conductor (30b) so as to block said conductor (30b) against moving in translation after said spacer casing (24a-24f) has been put to atmospheric pressure.
Voltage power circuit breaker dual compartment module
A switchgear/board cabinet is constructed using a dual compartment module (100) that includes an equipment compartment (200) and a bus compartment (300) arranged behind the equipment compartment. The bus compartment includes line connection buses (310) and load connection buses (320) for a plurality of phases, spaced-apart vertical interphase barriers (330), a horizontal support barrier (340) and a rear barrier (350) forming a back wall. Each of the vertical interphase barriers extends from a front to a back of the bus compartment, and isolates the load connection bus and line connection bus of each phase from the load connection bus and line connection bus of the other of the phases. The horizontal support barrier extends from the front to the back of the bus compartment, and supports the line connection buses. Any number of dual compartment modules may be constructed and stacked to provide a customized switchgear/board cabinet.
Spark plug with interference-suppression element
A spark plug having a spark plug body and an insulator arranged therein, in which insulator a passage is provided in which a center electrode, an ignitor and a glass seal connecting the center electrode to the ignitor and acting as an interference-suppression resistor are arranged. At least one additional interference-suppression element is arranged in the passage of the insulator.
A spark plug having a ground electrode, a noble metal tip having a front end that projects forward of a front end portion of the ground electrode, and a center electrode. When S1 represents an area of an overlap region in which a region onto which the center electrode is projected overlaps a region onto which the noble metal tip is projected when the center electrode and the noble metal tip are projected onto an imaginary plane perpendicular to a center line of the center electrode, and S2 represents an area of an overlap region in which a region onto which the noble metal tip is projected overlaps a region onto which the ground electrode is projected when the noble metal tip and the ground electrode are projected onto the imaginary plane, 0.22≦S1/S2≦0.68 is satisfied.
Multi-electrode spark plug
A multi-electrode spark plug having a large spark target volume is disclosed. The spark plugs have a plurality of ground electrode rods which extend from the base of the spark plug and are twisted around center electrode to provide a plurality of substantially equidistant spark points relative to the center electrode. The spark points are formed in parallel and around the elongated axis of the spark plug. This configuration enables the spark to be created where the localized concentration of fuel to air is richer, such as that which may exist when the engine is operating with lower revolutions per minute. Test results indicate that automobiles equipped with the multi-electrode spark plugs exhibit improved fuel economy, and substantially reduced emissions and air pollution.
ESD protective device
An ESD protective device is provided which can lower a discharge start voltage. In an ESD protective device 1, first and second discharge electrodes 3 and 4 are disposed in a substrate 2 in a spaced relation with a discharge gap G interposed therebetween, and a conductor 9 is arranged around the discharge gap G. The conductor 9 has a nonlinear sectional shape in a section of the substrate 2 extending in a direction interconnecting a first principal surface 2a and a second principal surface 2b of the substrate 2 and passing the discharge gap G.
Fast wavelength-tunable hybrid laser with a single-channel gain medium
A tunable laser includes a semiconductor optical amplifier (SOA) having a reflective end coupled to a shared reflector and an output end, which is coupled to a demultiplexer through an input waveguide. The demultiplexer comprises a set of Mach-Zehnder (MZ) lattice filters, which function as symmetric de-interleaving wavelength splitters, that are cascaded to form a binary tree that connects an input port, which carries multiple wavelength bands, to N wavelength-specific output ports that are coupled to a set of N reflectors. A set of variable optical attenuators (VOAs) is coupled to outputs of the MZ lattice filters in the binary tree, and is controllable to selectively add loss to the outputs, so that only a single favored wavelength band, which is associated with a favored reflector in the set of N reflectors, lases at any given time. An output waveguide is optically coupled to the lasing cavity.
Direct current sensing of lasing current provided through a safety switch
One or more embodiments are directed to laser circuits, methods and devices that include a current sensing circuit for sensing a lasing current provided to a laser diode or device. One embodiment is directed to a circuit that includes a laser device, a switching device, a current sensing circuit and a current comparator. The switching device has a first conduction terminal coupled to the laser device and a second conduction terminal coupled to a supply voltage. The switching device is configured to operatively supply a lasing current to the laser device. The current sensing circuit is coupled to the switching device and is configured to generate a sense current representative of the lasing current. The current comparator is configured to receive the sense current from the current sensing circuit, to receive a reference current, and to compare the sense current with the reference current. If the sense current exceeds the reference current, the current comparator is configured to output an overcurrent detection signal.
An optoelectronic oscillator for generating an optical and/or electric pulse comb, comprising a monolithically integrated passively mode-coupled semiconductor laser and an optical feedback loop which guides a part of the optical radiation of the semiconductor laser and feeds said part back into the semiconductor laser as feedback pulses. Without the influence of the feedback pulses, the semiconductor laser would emit comb-like optical pulses, hereafter referred to as primary pulses, and in the event of an influence, emits comb-like output pulses which have been influenced by the feedback pulses, said output pulses having a lower temporal jitter or less phase noise than the primary pulses. The feedback loop is damped between 27.5 and 37.5 dB, and the time lag of the feedback loop is selected such that each feedback pulse is incident within the temporal half-value width of each subsequent primary pulse.
Fast tunable hybrid laser with a silicon-photonic switch
A tunable laser includes a reflective silicon optical amplifier (RSOA) with a reflective end and an interface end and an array of narrow-band reflectors, which each have a different center wavelength. It also includes a silicon-photonic optical switch, having an input port and N output ports that are coupled to a different narrow-band reflector in the array of narrow-band reflectors. The tunable laser also includes an optical waveguide coupled between the interface end of the RSOA and the input of the silicon-photonic optical switch. The frequency of this tunable laser can be tuned in discrete increments by selectively coupling the input port of the silicon-photonic optical switch to one of the N output ports, thereby causing the RSOA to form a lasing cavity with a selected narrow-band reflector coupled to the selected output port. The tunable laser also includes a laser output optically coupled to the lasing cavity.
Ultrashort pulse fiber amplifier using 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 25 to 120 micron, and a length of the gain fiber is shorter than 60 cm.
Flat waveguide-type laser device
A configuration is provided with a laser medium 1 of a refractive index nc that is an isotropic medium and includes an upper surface and a lower surface, where at least one of the upper surface and the lower surface is bonded with a cladding 2 having a refractive index satisfying a relationship of no
Power interconnection with current surge mitigation
Disclosed is an apparatus for power interconnection, adapted for use between a main connector and a DC main. The power connector has a connector power terminal and the DC main has a DC main power terminal. The apparatus includes an apparatus power terminal for being electrically coupled to the DC main power terminal in response to the apparatus in connection with the DC main; a first conductor including a resistor and a conductive contact, the conductive contact being electrically coupled to the resistor; and a second conductor, the resistor being electrically coupled to the second conductor, wherein, in response to an action of the power connector in connection with the apparatus, the connector power terminal contacts the conductive contact and a first current flowing therethrough is limited by the resistor. A receptacle structure for power interconnection is also disclosed.
Sheath structure assembly coupling method
To provide a sheath structure assembly coupling structure and a sheath structure assembly coupling method, with which excellent workability and a reduction in costs can be achieved; a reduction in the strength of the connection portion or in the electrical connection can be prevented and a uniform and excellent electrical connection can be achieved; with which excellent durability is maintained for a long period even in the usage environment in which a great force such a tension or the like continuously acts; and with which break or a reduction in insulating performance can be avoided.
Component mounting method
While a substrate is placed on a substrate placement stage provided in a central substrate transfer unit, the substrate is transferred to a component loading operation unit, after operation for loading a component on the substrate has been performed by the component loading operation unit, the central substrate transfer unit is moved to the side of a first component crimping operation unit to thereby transfer the substrate that remains placed on the substrate placement stage to the first component crimping operation unit, and the component is crimped to the substrate by the first component crimping operation unit.
Double-side and dual-purpose connector
The utility model claims a double-side and dual-purpose connector, comprising a terminal component and a shell, wherein the terminal component comprises a first terminal and a second terminal which are in isolated setting and adapt to different data interface types; different types of data interfaces can be connected by the first terminal and the second terminal; and the shell is tightly sleeved outside the terminal component to limit and fix the terminal component. The connector provided in the utility model is convenient to use and capable of being compatible with different types of data interfaces and matching with the interface of electronic equipment, such as existing cell phone, etc.
Termination of electrical cable, and method of making
A cable termination and method are disclosed that electrically and mechanically terminates a bundled cable that requires a radial space only slightly greater than the cable diameter. An electrically-conductive ferrule is connected to an end of a cable, with a conductive adhesive such as a conductive epoxy injected into the ferrule to mechanically connect the ferrule to the cable end, and to electrically couple the ferrule to a shield of the cable, such as a braided wire shield. The ferrule is received by a connector housing, such as being inserted between a pair of connector housing halves, to retain the ferrule mechanically coupled to the housing, and to electrically couple the ferrule to the housing.
Plug connector assembly having a strengthened metal shell
A plug connector assembly includes: a mating member; a cable; a printed circuit board (PCB) interconnected between the mating member and the cable; a metal shell enclosing the PCB, a rear of the mating member, and a front of the cable, the metal shell including an upper shell part and a lower shell part both welded to the rear of the mating member; and an insulative outer shell enclosing the metal shell, the rear of the mating member, and the front of the cable, wherein the upper shell part is welded to the lower shell part.
Electrical connector with metallic shells with sacrificial fixing portions
An electrical connector including an insulative housing comprises a first metallic shell including a first body and a first positioning section extending from the first body; and a second metallic shell including a second body and a second positioning section extending from the second body and aligned with the first positioning section in a first direction; wherein the second metallic shell integrally forms a fixing portion extending from the second positioning section and tightly attaching the first metallic shell onto the second metallic shell at their first and second positioning sections so as to form a receiving cavity surrounded by both the first body and the second body to receive the insulative housing.
Connector and connector assembly
A connector is disclosed. The connector has a housing and a conductive terminal disposed in the housing. The conductive terminal has a pair of resilient contact arms biased toward each other and a releasing mechanism adapted to move the pair of resilient contact arms away from each other.
Electrical connector assembly with axial connection assist
A connector includes a first housing, a second housing, a mate assist slider, and a cam gear. The first-housing has a first outer surface. The second housing is configured to mate with the first housing, and the second housing includes a pin extending from a second outer surface. The connector also includes a mate assist slider moveable from an unmated position to a mated position. The connector also includes a cam gear mounted to the first outer surface. The cam gear moves in response to a movement of the mate-assist-slider from the unmated position to the mated position. The cam gear has a cam slot with an inertial detent. A vibratory feedback is provided to an assembler indicative of a properly positioned connector housing when the pin is moved past the inertial detent.
A connector includes a connector main member and an operation member. The operation member covers the connector main member at least in part in a plane perpendicular to a front-rear direction, The operation member is movable between a front limitation position and a rear limitation position. The operation member has, therein, a front regulating portion accommodation portion accommodating the front regulating portion, and an operated portion accommodation portion accommodating the operated portion. The front regulating portion accommodation portion is provided, therein, with a front regulated portion which is brought into abutment with the front regulating portion when the operation member is positioned at the front limitation position. When the operation member is moved to the rear limitation position, the operated portion accommodation portion is provided, therein, with an operating portion which presses the operated portion inward of the connector main portion and moves the lock portion to a released position.
Modular strain relief assembly
The present disclosure discloses a modular strain relief assembly and a method for providing strain relief for the junction of an electrical cable and an electrical connector. The strain relief assembly comprises a connector adapter, a cable adapter and a ball-joint connector. Each of the connector adapter, the cable adapter and the ball-joint connector comprises a first section and a second section. The first section of each of the connector adapter, the cable adapter and the ball-joint connector comprises pins. The second section of each of the connector adapter, the cable adapter and the ball-joint connector comprises sockets. The pins are allowed to mate with the sockets to join the first section and second section of each of the connector adapter, the cable adapter and the ball-joint connector, respectively.
Electrical connector having an improved metal reinforcing member
An electrical connector includes an insulative housing, metal reinforcing member, a number of terminals affixed to the insulative housing, and a shielding shell enclosing the insulative housing. The insulative housing includes a base portion and a tongue portion extending forwardly from the base portion. The tongue portion defines a pair of lateral walls and a pair of positioning grooves located in front of the lateral walls. The metal reinforcing member includes a pair of engaging portions located in front of the lateral walls and engaged with the positioning grooves of the tongue portion. The engaging portions are aligned with the lateral walls.
Connector and connection structure
A connector comprises a housing, a contact and a connection structure. The connection structure is a structure other than the housing and comprises a conductive member, a protection portion and an electric-shock prevention portion. The conductive member has a first end portion and a second end portion. The first end portion is attached to or integrally formed with the contact. The protection portion covers a part of the conductive member, which is positioned between the first end portion and the second end portion. The housing has an accommodation portion formed therewithin. The accommodation portion has an opening. The contact is accommodated in the accommodation portion together with the first end portion of the conductive member. The electric-shock prevention portion, at least in part, blocks the opening of the accommodation portion and obstructs entrance of a finger into the accommodation portion beyond the electric-shock prevention portion.
Electrical connector having improved terminal arrangement
An electrical connector includes an insulative housing having a tongue portion, and two rows of terminals reversely-symmetrically arranged at opposite faces of the tongue portion. Each row of terminals include a grounding terminal and a power terminal arranged at a first district, and at least one subsidiary terminal arranged at a second district connecting the first district. Each row of terminals lack of at least two terminals to thereby form a vacant space between the grounding terminal and the power terminal. The subsidiary terminals in the two rows are offset with each other along an up-to-down direction.
Spring-loaded contacts having an improved reliability. One example may provide spring-loaded contacts having a reduced likelihood of entanglement between a spring and a plunger. For example, a piston may be placed between a plunger and a spring. The piston may have a head portion that is wider than the diameter of the spring and located between the spring and the plunger to isolate the spring and the plunger. In these and other examples, an additional object, such as a sphere, may be placed between the plunger and spring. In another example, two additional objects, such as two spheres, may be placed between a plunger and piston.
Hidden electrical contacts
Electrical contacts are described. An electrical contact can be formed on an exterior surface of a housing of an electronic device and can be cosmetically similar to the exterior surface. For example, the electrical contact can include a conductive plug inserted through an opening in a wall of the housing. A metallic coating can be applied to an outward-facing end of the conductive plug and fill up an outer portion of the opening until the metallic coating is about flush with the exterior surface of the housing. Properties of the metallic coating can be selected to closely match a color and a texture of the housing.
Mating connector using slider to deform contacts
A connector is provided that includes a housing, a contact, and a slider. The housing includes a mating connector receiving section, while the contact extends into the mating connector receiving section. The slider is positioned on the housing and includes a cam plate and a protruding wall positioned along a rear end of the cam plate.
A crimp terminal includes: a terminal fitting having a terminal connecting portion electrically connected to a counterpart terminal and an electric wire connecting portion electrically connected by crimping to an end portion of an electric wire placed on an inner wall surface thereof; and a second water stop portion that is pasted on the inner wall surface of the electric wire connecting portion before crimping and that, after crimping, forms a second water stop area capable of suppressing water entry between the electric wire connecting portion and the core wire from the terminal connecting portion side with respect to the distal end position of the core wire at the distal end of the electric wire. The electric wire connecting portion has a core wire crimp portion crimped on the core wire at the distal end of the electric wire.
Electric cable connection terminal and wire harness having the electric cable connection terminal
There is provided an electric cable connection terminal. A first connection part is configured to connect the one electric cable thereto. A second connection part is configured to connect the other electric cable thereto. A waterproof member is configured to be melted to seal leading end portions of core wires of the electrics cable when being heated and configured to be solidified to waterproof the leading end portions when being cooled. An accommodation part accommodating the waterproof member therein is provided between the first and second connection parts. A thermal shrinkage member is provided to cover the first and second connection parts and the accommodation part and configured to be shrunken when being heated to closely contact the first and second connection parts and the accommodation part. When the cables are connected to the first and second connection part, respectively, the core wires are arranged at an interval.
Linking cable connector
Linking cable connector includes a lead frame held in an interior cavity of a cover. The lead frame includes conductive leads arranged side by side in a row and extending between a first end and an opposite second end of the lead frame. At least some adjacent conductive leads are spaced on a first lead pitch at the first end, and are spaced on a second lead pitch at the second end. The second lead pitch is less than the first lead pitch. The conductive leads engage and electrically connect to corresponding wire conductors of a first cable harness at the first end of the lead frame, and the conductive leads engage and electrically connect to corresponding wire conductors of a second cable harness at the second end of the lead frame such that the leads provide conductive paths between the first and second cable harnesses.
Multi-beam antenna with modular luneburg lens and method of lens manufacture
A multiple beam antenna system is described. The system may include a mounting structure, a first wireless access antenna, a second wireless access antenna, and a radio frequency lens. The first and second wireless access antennas may be mounted to the mounting structure. Columns of radiating elements of the first and second wireless access antennas may be aligned with the radio frequency lens. The radio frequency lens may be modular in a longitudinal or radial direction, or in both directions. The radio frequency lens may include a plurality of compartments arranged to form a first cylinder made up of concentric, coaxial cylinders and a plurality of dielectric materials in at least some of the plurality of compartments.
RF circuit and antenna combination for body wearable wireless communication systems
A method of configuring a small wireless communication system is described for body wearable applications where the radiated power from the antenna in the direction of the user is reduced. A method of coupling resonators, which are formed by planar conductors as well as linear conductors, is described where the resonators extend the electrical extent of the ground plane of a small circuit board resulting in improved antenna efficiency and bandwidth characteristics from an antenna coupled or connected to the ground plane. The resonators can be configured to modify the near-field distribution of the antenna radiation pattern of the antenna coupled to the small ground plane which will result in less power radiated in the volume behind the top surface of the ground plane the antenna is coupled to. A technique is also described wherein the antenna element is integrated onto the top surface of a packaged RFIC, with the RFIC containing the transceiver circuit. The technique is optimal for providing efficiency improvements for antennas on electrically small ground planes. A method of forming slots from planar conductors is described where the radiated field from the slot is combined with the radiated field from an antenna coupled to a small ground plane which can result in improved efficiency and/or modified polarization properties from the combination of antenna, resonator, and ground plane.
True path beam steering
The present invention is an apparatus for shifting the phase of an radiofrequency signal. The device has an input line and an output line. An input switch is connected to the input line. The input switch is has several input throws. An output switch is connected to the output line. The output switch has several output throws which correspond to the input throws. The apparatus also has several phase shift lines. Each phase shift line has a true path length that is different from the true path lengths of the other phase shift lines.
Multi-element antenna calibration technique
Antenna system having an antenna array with multiple sub-arrays, each having one or more antenna elements, is calibrated using a distributed calibration antenna element, such as a leaky coaxial cable, that spans across at least two and possibly all of the sub-arrays. To calibrate the transmit (TX) paths of the sub-arrays, TX calibration test signals are transmitted by the sub-arrays, captured by the distributed calibration element, and processed by a corresponding calibration radio. To calibrate the receive (RX) paths of the sub-arrays, an RX calibration test signal is generated by the calibration radio, transmitted by the distributed calibration element, captured by the sub-arrays, and processed by their corresponding radios. Cross-correlation between the calibration and captured signals is performed to derive the complex gain of each sub-array transmitter and receiver, which provides information for aligning the gain, phase, and delay of the different TX and RX paths of the antenna array.
Wireless communication device with joined semiconductors
A joined structure which is configured such that a space between adjacent substrates is filled with a filling material. The joined structure includes a first substrate having a first conductor formed on a surface of the first substrate, a second substrate having a second conductor formed on a surface of the second substrate, arranged so that a surface of the first substrate faces a surface of the second substrate, a connecting conductor which electrically connects the first conductor and the second conductor, and a filling material between the first substrate and the second substrate. The filling material is formed into such a shape that a space is provided which corresponds to at least one of the first conductor, the second and the connecting conductor.
Antenna structure and wireless communication device using the same
An antenna structure includes a feed portion, a ground portion, a first radiator, a second radiator, a first metallic sheet, and a second metallic sheet. The first radiator is coupled to the feed portion. The second radiator is spaced from the first radiator, and is electronically coupled to the first radiator. The first metallic sheet is coupled to the ground portion. The first metallic sheet and the second metallic sheet are connected to two opposite sides of the second radiator.
Flexible antenna and method of manufacture
A flexible microwave antenna having a “fish-scale” ground plane is provided. The approach represents a significant advance in the combined thickness and flexibility that can be achieved, especially when using relatively thick substrates which are important for optimum antenna performance. An increase in gain was observed when bent in a positive radius of curvature and further reduction of back radiation.
Wireless distribution using cabinets, pedestals, and hand holes
Novel tools and techniques are provided for implementing antenna structures to optimize transmission and reception of wireless signals from ground-based signal distribution devices, which include, but are not limited to, cabinets, pedestals, hand holes, and/or network access point platforms. Wireless applications with such devices and systems might include, without limitation, wireless signal transmission and reception in accordance with IEEE 802.11a/b/g/n/ac/ad/af standards, UMTS, CDMA, LTE, PCS, AWS, EAS, BRS, and/or the like. In some embodiments, an antenna might be provided within a signal distribution device, which might include a container disposed in a ground surface. A top portion of the container might be substantially level with a top portion of the ground surface. The antenna might be communicatively coupled to at least one conduit, at least one optical fiber line, at least one conductive signal line, and/or at least one power line via an apical conduit system installed in a roadway.
Terminal connection comprising an HF conductor, in particular for a coaxial cable, and method for producing said terminal connection
A terminal connection comprises an HF conductor and a terminal apparatus. The terminal apparatus comprises an HF conductor receiving element comprising an HF conductor receiving hole. At least one solder deposit is arranged between the HF conductor and the HF conductor receiving element of the terminal apparatus to establish an electrically conductive connection. There is also an insertion sleeve comprising a receiving opening into which the HF conductor is inserted. The insertion sleeve is inserted into the HF conductor receiving hole in the HF conductor receiving element via an insertion opening on the plug-in side. The insertion sleeve is undeformable and/or is formed from a dielectric. It may also be adapted, in terms of the circumferential lateral face thereof, to an inner face of the HF conductor receiving hole. It may also comprise a receiving channel, which is used for receiving the at least one solder deposit.
Dielectric resonator/filter including a metallized dielectric body having a blind hole therein with a demetallized notch that is sealed by a metallized sealing part
The present application provides a dielectric resonator, a dielectric filter, a base station and a method for fabricating the dielectric resonator or the dielectric filter. The dielectric resonator includes: a solid dielectric resonator body, a blind hole located on one side of the solid dielectric resonator body, a metalized layer covering both a surface of the solid dielectric resonator body and a surface of the blind hole, and a demetallized notch located at the metalized layer on the surface of the blind hole. The dielectric resonator provided in the present application can implement tuning of the dielectric resonator, and reduce impact on the resonance frequency of the dielectric resonator after the dielectric resonator is tuned, where the impact caused by that the demetallized notch is covered by a metal material in an assembly process of the dielectric resonator, and signal energy that is leaked from the notch is reduced.
Bandpass filter and method of fabricating the same
The invention provides a bandpass filter, comprising: a substrate with a plurality of dielectric layers; a plurality of resonators; and a plurality of ground layers each having one slot arranged on; wherein the plurality of resonators are arrayed vertically each on respective one of the plurality of dielectric layers alternately without any of offsets, and each of the plurality of ground layers is between adjacent dielectric layers. Adjacent slots are arranged in opposite sides of the ground layers. The invention also provides a method of fabricating the bandpass filter.
Conformal heat exchanger for battery cell stack
A heat exchanger structure for use in a battery unit that comprises a first battery stack comprising a plurality of battery cells and a second battery stack comprising a plurality of battery cells. The heat exchanger structure is disposed between opposing surfaces of the first battery stack and the second battery stack and defines one or more fluid flow passages, the heat exchanger structure being dimensionally compliant to compress under expansion of the first and second battery stacks and expand under subsequent contraction of the first and second battery stacks.
System and method for increasing operational time of an electronic device
A system and method for increasing the operating time of electronic devices, such as a point of view camera, are provided. The system includes a connector block sized to be received within a battery chamber of an electronic device. A battery pack is then attached to the connector block for providing power to the electronic device. The battery pack includes an outer battery housing, one or more batteries and an inner battery housing. The outer battery housing includes a cavity adapted to receive the one or more batteries. The opening of the cavity is sized to receive the inner battery housing and retain the inner battery housing with a friction fit, thereby retaining the outer battery housing and the inner battery housing together. When the battery pack is attached to a front housing portion of an electronic device housing, power is provided to the electronic device via the connector block.
Battery and motor vehicle
A battery includes at least two battery cells and a first electrical connection between a first battery pole of one of the at least two battery cells and a second battery pole of one other battery cell of the at least two battery cells. A second electrical connection branches off from the first electrical connection for the purpose of measuring a battery cell voltage of at least one battery cell of the at least two battery cells.
Nonaqueous electrolyte solution secondary battery
A nonaqueous electrolyte solution secondary battery having an electrode element having a positive electrode and a negative electrode disposed so as to face each other, a nonaqueous electrolyte solution, and an outer package housing the electrode element and the nonaqueous electrolyte solution, wherein the nonaqueous electrolyte solution contains a cyclic sulfonic acid ester represented by the general formula (1), and a positive electrode active material in the positive electrode is a mixture of a lithium manganese composite oxide having a spinel structure and a lithium transition metal composite compound having a layered rock salt structure. wherein, in the formula (1), R1 and R2 are each independently a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, a halogen group or an amino group with the proviso that R1 and R2 are not hydrogen atoms at the same time; R3 represents a linkage group selected from the group consisting of an alkylene group having 1 to 5 carbon atoms, a carbonyl group, a sulfonyl group, a fluoroalkylene group having 1 to 6 carbon atoms, and a divalent group having 2 to 6 carbon atoms in which alkylene units or fluoroalkylene units are bonded through an ether group.
Nonaqueous electrolytic solution and nonaqueous-electrolyte battery employing the same
The present invention is to provide: a nonaqueous-electrolyte battery excellent in terms of safety during overcharge and high-temperature storability; and a nonaqueous electrolytic solution which gives the battery. The present invention relates to a nonaqueous electrolytic solution comprising an electrolyte and a nonaqueous solvent, wherein the nonaqueous electrolytic solution comprises at least one of specific compounds.
Garnet-type Li-ion conductive oxide and all-solid Li-ion secondary battery
A garnet-type Li-ion conductive oxide containing LixLa3Zr2O12 (6≦x≦8) contains Al and element T (T is one or more from Ni, Cu, Co, and Fe). The content of Al is, in terms of Al2O3, 2.5 mol %≦Al2O3≦15 mol % with respect to a total amount of LixLa3Zr2O12 contained in the garnet-type Li-ion conductive oxide. The content of element T is 25 mol %≦T≦100 mol % with respect to the total amount of LixLa3Zr2O12 contained in the garnet-type Li-ion conductive oxide.
All-solid lithium secondary battery
An exemplary all-solid lithium secondary battery includes a positive electrode including a positive-electrode active substance layer, a negative electrode, and a solid electrolyte layer interposed between the positive electrode and the negative electrode. The positive-electrode active substance layer is composed of lithium cobaltate, and has an α-NaFeO2 type crystal structure. The positive-electrode active substance layer has a (018) plane oriented in a normal direction of a principal face of the positive-electrode active substance layer. The solid electrolyte layer is composed of lithium lanthanum titanate and has a tetragonal perovskite-type crystal structure. The solid electrolyte layer has a (110) plane or a (102) plane oriented in a normal direction of a principal face of the solid electrolyte layer.
Cathode sheet and lithium ion electric roll using the same
The present application relates to the filed of energy storage devices, and in particular, relates to a cathode sheet and a lithium ion electric roll using the cathode sheet. The cathode sheet comprises a cathode current collector, an active substance layer, a cathode tab, a head protective adhesive, a tail protective adhesive, an ending adhesive, and an anti-puncture cushion. The cathode current collector comprises a head exposed zone, a head adhesive application zone, a coating zone, a tail adhesive application zone, and a tail exposed zone. The active substance layer covers the coating zone, the head protective adhesive covers the head adhesive application zone, the tail protective adhesive covers the tail adhesive application zone, the ending adhesive is bonded to a tail of the tail exposed zone, and the anti-puncture cushion is connected to the tail exposed zone.
Device for producing packaged electrode and method of producing packaged electrode
A device for producing a packaged electrode includes: a conveyance unit configured to sequentially overlay the electrode and the pair of separators from a front end side in a conveying direction while conveying the electrode and the pair of separators; a first joining chip configured to join lateral edges of the pair of separators together; at least one second joining chip positioned downstream of the first joining chip in the conveying direction and configured to join the lateral edges of the pair of separators together. Front ends of the lateral edges of the pair of separators being sequentially overlaid while being conveyed by the conveyance unit are joined together by the first joining chip positioned upstream before the front ends are conveyed to the second joining chip positioned downstream.
Electrode assembly with integrated reinforcement layer
An electrode assembly and a method of making an electrode assembly. One embodiment of the method includes coating an ionomer solution onto a catalyst coated diffusion media to form a wet ionomer layer, and applying a porous reinforcement layer to the wet ionomer layer such that the wet ionomer layer at least partially impregnates the reinforcement layer. Drying the wet ionomer layer with the impregnated reinforcement layer and joining it to the catalyst coated diffusion media forms an assembly that includes an integrally-reinforced proton exchange membrane layer. This layer may be additionally joined to other ionomer layers and other catalyst coated diffusion media such that a membrane electrode assembly is formed.
Selectively locatable power generation system employing a water splitting process
The invention is a power generation system which involves a water-splitting reaction employing metal feedstock to generate heat, hydrogen and metal hydroxide. The heat produced by the power generation system supplies a Heating-Ventilation-Air Conditioning (HVAC) system for heating and cooling building structures, such as homes, kiosks, commercial buildings and greenhouses. The hydrogen gas component produced by the invention is sufficient to fuel a fuel cell vehicle (FCV) and a fuel cell, which provides electricity to an associated building structure. The invention can be located on-site with a building structure and provides a readily available FCV fueling station associated with the building structure where an FCV is located.
Method of operating fuel cell with high power and high power fuel cell system
A fuel cell is operated with high power such that which a humidified gas and a dry gas are selectively supplied as oxidant to a cathode of the fuel cell. This method includes (S1) supplying a humidified gas while a power is constantly maintained or until the power begins to decrease; (S2) after supplying the humidified gas, supplying a dry gas to obtain a greater power than an average power of the step (S1); and (S3) after obtaining a predetermined power in the step (S2), repeatedly supplying a humidified gas in case the power decreases and supplying a dry gas in case the power decreases again afterwards, thereby increasing the power such that the predetermined power is maintained. This method provides an optimal operating condition to a fuel cell, thereby ensuring a high power.
Solid oxide fuel cell device
To provide a fuel cell device capable of extending the years of service life of a reformer by suppressing thermal runaways. The present invention is a solid oxide fuel cell device, including a fuel cell module having fuel cell units; a reformer disposed above the fuel cell units, for producing hydrogen by a partial oxidation reforming reaction and a steam reforming reaction; a vaporizing chamber disposed adjacent to the reformer; a combustion chamber for heating the vaporization chamber; a water supply device; an electrical generation oxidant gas supply device; and a controller for raising the fuel cell units to a temperature at which electrical generation is possible; whereby over the entire period of the startup step, the reforming oxidant gas supply device and water supply device are controlled so that partial oxidation reforming reactions do not occur independently in the reformer.
Fuel cell with purge manifold
A fuel cell includes an electrode assembly having an electrolyte between an anode and a cathode for generating an electric current and byproduct water. A porous plate is located adjacent to the electrode and includes reactant gas channels for delivering a reactant gas to the electrode assembly. A separator plate is located adjacent the porous plate such that the porous plate is between the electrode assembly and the separator plate. The separator plate includes a reactant gas inlet manifold and a reactant gas outlet manifold in fluid connection with the reactant gas channels, and a purge manifold in fluid connection with the porous plate such that limiting flow of the reactant gas from the reactant gas outlet manifold and opening the purge manifold under a pressure of the reactant gas in the reactant gas channels drives the byproduct water toward the purge manifold for removal from the fuel cell.
Composite for lithium air battery, method of preparing the composite, and lithium air battery employing positive electrode including the composite
A composite for a lithium air battery, wherein the composite is represented by Formula 1: MCxN(1−x) Formula 1 wherein M in Formula 1 is at least one selected from a metal element and a metalloid element, and 0
Anode on a pretreated substrate for improving redox-stability of solid oxide fuel cell and the fabrication method thereof
A double-layer anode structure on a pretreated porous metal substrate and a method for fabricating the same, for improving the redox stability and decreasing the anode polarization resistance of a SOFC. The anode structure includes: a porous metal substrate of high gas permeability; a first porous anode functional layer, formed on the porous metal substrate by a high-voltage high-enthalpy Ar—He—H2—N2 atmospheric-pressure plasma spraying process; and a second porous anode functional layer, formed on the first porous anode functional layer by a high-voltage high-enthalpy Ar—He—H2—N2 atmospheric-pressure plasma spraying and hydrogen reduction. The first porous anode functional layer is composed a redox stable perovskite, the second porous anode functional layer is composed of a nanostructured cermet. The first porous anode functional layer is also used to prevent the second porous anode functional layer from being diffused by the composition elements of the porous metal substrate.
Fuel cell, fuel cell stack, and fuel cell apparatus
The invention relates to a fuel cell having superior durability by suppressing a reaction between a component contained in a solid electrolyte and an oxygen-side electrode during a long-period operation, a fuel cell stack and a fuel cell apparatus using thereof. A fuel cell (10) includes a solid electrolyte (9) containing Zr, an intermediate layer (4) and an oxygen-side electrode (1) that are disposed in this order on one surface of the solid electrolyte (9), and a fuel-side electrode (7) disposed on another surface opposed to the oxygen-side electrode (1) of the solid electrolyte (9). The intermediate layer (4) includes a surface layer region (4a) that contains Zr and is on a side of the solid electrolyte (9), and another region (4b) except the surface layer region (4a) that does not contain Zr. Accordingly, it is possible to suppress a reaction between Zr and the oxygen-side electrode (1) and suppress power generation performance degradation of the fuel cell (10).
Binder for electrodes of lithium secondary batteries, and lithium secondary battery which uses electrode produced using binder for electrodes of lithium secondary batteries
To provide a binder that has high adhesiveness to a collector, does not cause release in press molding, has high flexibility, and is excellent in binding capability and resistance to an electrolytic solution, and to provide a lithium secondary battery that is excellent in charge and discharge characteristics using an electrode produced with the binder. The binder for an electrode used contains a hydrophilic group-containing polyurethane as a water dispersion that contains (A) a polyisocyanate, (B) a compound that has two or more active hydrogen groups, (C) a compound that has one or more active hydrogen groups and one or more hydrophilic groups, and (D) a chain extending agent, or contains an aqueous resin composition containing a polymer of an unsaturated polymerizable monomer that is emulsified with the hydrophilic group-containing polyurethane.
Storage structure for a solid electrolyte battery
A storage medium and an inert material, either integrated into the storage medium or existing as a separate phase in the storage medium, form a storage structure. The inert material at least partially contains or is formed by a polymorphous inert material. The polymorphous inert material has at least one polymorphous phase transition in the range between ambient temperature and maximum operating temperature of the solid electrolyte battery. The polymorphous phase transition induces a distortion of the lattice structure of the inert material, thus causing a change in the specific volume and acting on the surrounding grains of the storage medium. A mechanical coupling of the stresses triggered by the phase transition of the inert material causes the neighboring grains of the storage medium to break apart, such that new reactive zones become available in the storage medium, thereby regenerating the solid electrolyte battery.
Electrode material for lithium-ion rechargeable battery
[Problems]To provide an electrode material for a lithium-ion rechargeable battery having a high mass energy density at a low temperature or in a high-speed charge and discharge.[Means for Solving the Problems]An electrode material for a lithium-ion rechargeable battery includes particles which are made of LiFexMn1-w-x-y-zMgyCazAwPO4 (here, A represents at least one element selected from Co, Ni, Zn, Al, and Ga, 0≦w≦0.05, 0.05≦x≦0.35, 0.01≦y≦0.10, and 0.0001≦z≦0.002), have an orthorhombic crystal structure, and have a space group of Pmna, in which a change ratio (V1−V2)/V1 between a lattice volume V1 of LiFexMn1-w-x-y-zMgyCazAwPO4 and a lattice volume V2 of FexMn1-w-x-y-zMgyCazAwPO4 obtained by chemically deintercalating Li from LiFexMn1-w-x-y-zMgyCazAwPO4 is in a range of 0.06 to 0.09.
Cathode active material and lithium secondary battery comprising the same
Disclosed is a cathode active material for secondary batteries comprising one or more compounds having a layered-crystal structure, represented by the following Formula 1, wherein a transition metal layer contains Li, in an amount lower than 20%, based on a total amount of a transition metal site, and a ratio of Ni positioned in a lithium layer, that is, a cation mixing ratio is 1% to 4.5%, based on a total amount of a lithium site in the lithium layer to stably support the layered-crystal structure: (1-s-t)[Li(LiaMn(1-a-x-y)NixCoy)O2]*s[Li2CO3]*t[LiOH] (1), wherein 0
Lithium-ion secondary battery, negative electrode for lithium-ion secondary battery, battery pack, electric vehicle, power storage system, electric tool, and electronic device
A lithium-ion secondary battery includes a positive electrode, a negative electrode containing an active material, and an electrolytic solution, in which the active material contains, as constituent elements, Si, O, and at least one element M1 selected from Li, C, Mg, Al, Ca, Ti, Cr, Mn, Fe, Co, Ni, Cu, Ge, Zr, Mo, Ag, Sn, Ba, W, Ta, Na, and K, and the atomic ratio x (O/Si) of O to Si is 0.5≦x≦1.8.
Anode active material for lithium secondary battery, method of preparing the same, and lithium secondary battery including the same
Disclosed herein is a non-carbon-based anode active material for lithium secondary batteries, including: a core containing silicon (Si); and silicon nanoparticles formed on the surface of the core. The non-carbon-based anode active material is advantageous in that the increase in the volume expansion during charging-discharging can be prevented by the application of silicon nanoparticles, and in that SiOx(x<1.0) can be easily prepared.
Silicon microstructuring method and microbattery
A method for forming a rough silicon wafer including the successive steps of: performing a plasma etching of a surface of the wafer in conditions suitable to obtain a rough structure, and performing two successive ion milling steps, one at an incidence in the range of 0 to 10°, the other at an incidence in the range of 40 to 60° relative to the normal to the wafer.
High-capacity electrodes with active material coatings on multilayered nanostructured templates
Provided are battery electrode structures that maintain high mass loadings (i.e., large amounts per unit area) of high capacity active materials in the electrodes without deteriorating their cycling performance. These mass loading levels correspond to capacities per electrode unit area that are suitable for commercial electrodes even though the active materials are kept thin and generally below their fracture limits. A battery electrode structure may include multiple template layers. An initial template layer may include nanostructures attached to a substrate and have a controlled density. This initial layer may be formed using a controlled thickness source material layer provided, for example, on a substantially inert substrate. Additional one or more template layers are then formed over the initial layer resulting in a multilayer template structure with specific characteristics, such as a surface area, thickness, and porosity. The multilayer template structure is then coated with a high capacity active material.
Electrode having a selectively loaded matrix and method of manufacturing
Electrodes made with a matrix selectively loaded with particular active particles provide uniform distribution and reduce issues due to particle expansion. The electrode has a current collector, a separator and a matrix having first pores having a first size and second pores having a second size, the first size being larger than the second size, the second pores being uniformly distributed throughout the matrix; first active particles deposited in the first pores, the first active particles having a first particle size smaller than the first pores and larger than the second pores; and second active particles deposited in the second pores, the second active particles having a second particle size smaller than the second pores.