Electromagnetic interference reduction assembly for a transmission of a vehicle
An electromagnetic interference reduction assembly for a transmission is disclosed. A transmission casing includes a base and walls extending outwardly away from the base to a distal edge. The transmission casing defines a first cavity between the walls and includes a platform disposed between the walls. A power inverter module is disposed in the first cavity and supported by the platform when in the first cavity. The power inverter module generates electrical noise during operation which produces electromagnetic interference. A lid is attached to the distal edge of the walls to contain the power inverter module inside the first cavity. A grounding member engages the power inverter module and the lid when the lid is attached to the transmission casing to electrically connect the power inverter module to the lid to reduce the electrical noise exiting the first cavity which reduces the electromagnetic interference exiting the first cavity.
Dual coil with adapter to move between redundant and non-redundant high performance heat exchanger
An apparatus, rear door heat exchanger, system, and method for controlling the redundancy of a cooling system for a server rack. The system includes a cooling system having at least two liquid cooling circuits. The system also includes a rear door heat exchanger connected to the cooling system. The rear door heat exchanger includes two heat exchange coils. Each heat exchange coil is carried by the server rack and configured to interface with a different liquid cooling circuit. The rear door heat exchanger also includes an adapter configured to couple together the two heat exchange coils into one heat exchange unit. The heat exchange unit is configured to interface with one liquid cooling circuit from the cooling system.
Coolant-conditioning unit with automated control of coolant flow valves
A coolant-conditioning unit is provided which includes a facility coolant path, having a facility coolant flow control valve, and a system coolant path accommodating a system coolant, and having a bypass line with a system coolant bypass valve. A heat exchanger is coupled to the facility and system coolant paths to facilitate transfer of heat from the system coolant to facility coolant in the facility coolant path, and the bypass line is disposed in the system coolant path in parallel with the heat exchanger. A controller automatically controls a regulation position of the coolant bypass valve and a regulation position of the facility coolant flow control valve based on a temperature of the system coolant, and automatically adjusts the regulation position of the system coolant bypass valve to facilitate maintaining the facility coolant flow control valve at or above a specified, partially open, minimum regulation position.
According to one embodiment, a display device includes a first substrate unit, a second substrate unit, a display layer, and a sealing portion. The first substrate unit includes a first substrate, a display electrode, a terminal portion, and a first insulating layer. The first substrate has a first major surface. The first major surface has a display region and a peripheral region. The display electrode is provided in the display region. The terminal portion is provided in the peripheral region and electrically connected to the display electrode. The first insulating layer is provided on the display and peripheral regions. The second substrate unit faces the first major surface. The display layer is provided between the display electrode and the second substrate unit. The sealing portion is provided between the first and second substrate units. The sealing portion surrounds the display layer and contacts the first insulating layer.
A touch panel includes: a first electrode in which second-direction parallel bands having a plurality of conducting wires disposed to extend in parallel with one another and along a second direction intersecting with a first direction are formed repeatedly in the first direction with interposition of first-direction gaps in the first direction, and first-direction cross bands having conducting wires disposed to extend in the first direction and intersect with the second-direction parallel bands are formed repeatedly in the second direction; and a second electrode in which first-direction parallel bands are formed as defined herein, and second-direction cross bands are formed as defined herein, and the first electrode and the second electrode are laid on each other so that the second-direction cross bands correspond to positions of the first-direction gaps and the first-direction cross bands correspond to positions of the second-direction gaps.
Casing for electrical equipment
A casing for electrical equipment has a drip-proof structure and includes a first plate and a second plate. The first plate has a plurality of first openings and a plurality of tongue-shaped louvers disposed in the respective first openings. Each louver has a lower end continuous to the first plate. The upper end side of each louver is folded to a back side of the first plate, The second plate is disposed on a front of the first plate. The second plate has a plurality of second openings each having a smaller area than each first opening. The first and second plates are overlapped with each other so that the first and second openings communicate with each other, forming a louver structure. The first and second plates are coated in the overlapped state with a result that a gap between them is filled with a paint.
Wire harness protector
A wire harness protector includes a resin plate. A plurality of excavated portions are recessed into a panel surface of the plate, the excavated portions having a circular shape in plan view and being aligned at intervals in an X axis direction and a Y axis direction orthogonal to the X axis direction. The excavated portions are arrayed in the X axis direction in a straight line shape along the X axis direction and are arrayed in the Y axis direction in a zigzag shape, shifting a phase so as to be positioned between excavated portions neighboring each other in the X axis direction. The excavated portions neighboring each other in the Y axis direction are further arrayed so as to have portions mutually overlapping in the Y axis direction.
Common chassis for instrumentation
Arrangement in an automated test system to connect to a plurality of functional modules of different forms including a common chassis defining a plurality of identical connectors and a backplane associated with the chassis and providing electrical connections for functional modules when engaged with the connectors. A set of adapters is provided including a first adapter having a coupling at an attachment end and a module receiving end configured to mate with one or more functional modules each having a first form, and a second adapter having a coupling at an attachment end and a module receiving end configured to mate with one or more functional modules each having a second form different than the first form. The couplings of the adapters are the same such that the adapters are freely insertable via their attachment ends into engagement with any of the connectors.
Double solder bumps on substrates for low temperature flip chip bonding
Multiple injections of molten solder are employed to form double solder bumps having outer layers that melt at lower temperatures than the inner portions thereof. During a flip chip assembly process, the reflow temperature is above the melting temperature of the outer layers and below the melting temperature of the inner portions of the solder bumps. As the inner portions of the solder bumps do not collapse during reflow, a flip chip assembly can be made at relatively low temperatures and have a high stand-off height. A structure having double solder bumps facilitates flip chip assembly.
Flexible printed board
A flexible printed board includes a base material, first conductive pads arranged along an imaginary line on the base material and extending with a first width from front end to rear end on a front side of the imaginary line, second conductive pads arranged along the imaginary line and extending with a second width from front end on a rear side of the imaginary line to rear end, first wiring patterns provided between the second conductive pads, and extending with a third width to front end connected to the rear ends of the first conductive pads, and a reinforcing layer for reinforcing a reinforcing area over the first conductive pads and the first wiring patterns, and having a front edge on a front side of rear ends of the first conductive pads and a rear edge on a rear side of the rear ends of the second conductive pads.
A wiring board according to the present invention is provided with an insulating board and a connection pad, wherein the connection pad includes a main conductor layer formed of a low resistance material, a thin film resistor layer formed of a high resistance material and having a low soldering wettability, and a covering layer having a high soldering wettability, the main conductor layer, the thin film resistor layer, and the covering layer being sequentially laminated at the surface of the insulating layer in such a manner as to be electrically connected in series to each other, and the thin film resistor layer covers a main surface and a side surface of the main conductor layer, and further, a side surface of the thin film resistor layer is exposed from the covering layer.
Method of manufacturing a patterned transparent conductor
Method of manufacturing patterned transparent conductor is provided, comprising: providing a silver ink core component containing silver nanoparticles dispersed in a silver carrier; providing a shell component containing a film forming polymer dispersed in a shell carrier; providing a substrate; coelectrospinning the silver ink core component and the shell component to form a core shell fiber, wherein the silver nanoparticles are in the core; depositing the core shell fiber on the substrate; selectively treating a portion of the deposited core shell fiber to provide a patterned transparent conductor, wherein the patterned transparent conductor has a treated region and a non-treated region; wherein the treated region comprises a plurality of electrically interconnected silver miniwires and wherein the treated region is an electrically conductive region; and, wherein the non-treated region is an electrically insulative region.
Wiring substrate, multi-piece wiring substrate, and method for manufacturing same
A wiring substrate includes a substrate main body which is formed of a ceramic laminate and has a rectangular shape in plan view, and which has a front surface and a back surface and has four side surfaces, each being located between the front surface and the back surface, and having a groove surface located on a side toward the front surface and a fracture surface located on a side toward the back surface; and a metalized layer which is formed on the front surface of the substrate main body so as to extend along the four side surfaces, and which has a rectangular frame shape in plan view, wherein a horizontal surface of the ceramic laminate of the substrate main body is exposed between the metalized layer and the groove surface of each side surface of the substrate main body.
Method for manufacturing a printed circuit board
A printed circuit board includes a first, second, and third dielectric layers, and a first, second, and third trace layers. The first trace layer and the second trace layer are formed on opposite surfaces of the first dielectric layer. The second dielectric layer is formed on the second trace layer, a first blind hole is defined in the first surface and terminated at a position in the first dielectric layer, a first conductive via is formed in the first blind hole. A second blind hole is formed in the second dielectric layer and the first dielectric layer. A second conductive via is formed in the second blind hole. The third trace layer is electrically connected with the second conductive via. The first trace layer is electrically connected with the second trace layer through the first conductive via and the second conductive via.
Printed circuit board, manufacturing method therefor, and metal-surface treatment liquid
The purpose of the present invention is to provide a printed circuit board wherein a resin layer exhibits excellent adhesion and a method for manufacturing said printed circuit board. This printed circuit board is provided with an insulating substrate, metal wiring laid out on said insulating substrate, and an insulating layer disposed on top of said metal wiring. A layer consisting of a thiol compound having at least four functional groups represented by formula (1) is interposed between the metal wiring and the insulating layer at the interface therebetween.
Firing delay for retrofit digital x-ray detector
A method and apparatus are disclosed for obtaining an x-ray image from an x-ray imaging apparatus using a digital radiography receiver installs a retrofit connection apparatus that adapts the x-ray imaging apparatus for use with the digital radiography receiver by forming a receiver interface channel for communicating signals to and from the digital radiography receiver, forming an operator interface channel for routing at least an input expose signal from an operator control to the connection apparatus and forming a sensor interface channel to receive at least an active x-ray emission signal from a sensor positioned operatively near an x-ray system of the x-ray imaging system of the type configured for film or computed radiography. An input expose signal over the operator interface channel can initiate a reset of the digital radiography receiver over the receiver interface channel.
Identification device, method and computer program product
According to an embodiment, an identification device includes a controller, an acquiring unit, and an identifying unit. The controller controls turning on/off of a plurality of light emitting apparatuses via a network individually by using pieces of identification information of their respective light emitting apparatuses. The acquiring unit acquires images of the light emitting apparatuses in time-series. The identifying unit determines an installation position of each of the light emitting apparatuses by using the on/off control on the light emitting apparatuses and the images, and identifies each of the light emitting apparatuses determined by the installation positions corresponding to each of the light emitting apparatuses identified by the pieces of identification information with each other.
Apparatus intelligent parallel view illumination pix-cell, methods of configuration and controls
Intelligent parallel view illumination pix-cell, and a system of pix-cells comprising configurable: illumination devices, controller, sensors, interfaces, mounting. Illumination configurations include: LED's, single color, multi-color, and generating light directed parallel to viewing surface. Sensor configurations include: ambient light, temperature. Interface configurations include: wireless, INTERNET. Mounting configurations include support for flexible illumination patterns with unique illumination parameters. Method of controls includes control algorithm and system acceptance criteria. Control algorithm configurations include: initial static and/or dynamic characterizations of pix-cell illumination properties as function of applied controls: real-time pix-cell/system controls based on established individual pix-cell static and/or dynamic properties, to achieve illumination effects within acceptance criteria. Configurations of acceptance criteria include: real-time creation and/or reproduction of video streams on super large scale screens/billboards; illumination of art and/or images on super large billboards; front/in-line/backlighting illumination of art; 3-D illumination effects. Controller monitoring sensors, executing real-time control algorithm sustaining operation of apparatus within acceptance criteria.
Light control system, light control method and computer readable memory
A plurality of lighting devices are respectively arranged, on a ceiling surface, at a plurality of grid points of the ceiling surface partitioned in a grid pattern. A detection unit detects occupancy statuses of a plurality of seats located correspondingly to positions of the plurality of grid points. A controller is capable of communicating with each of the plurality of lighting devices. The controller includes a light-control information generating unit that regards a block formed of a plurality of grid points centering around a grid point of an occupied location as one group to generate, for each of groups set correspondingly to occupied locations, light control information on a lighting device that becomes a dimming target in the group. The controller also includes a transmission unit that transmits the light control information. The lighting device being a dimming target among the plurality of lighting devices performs light control based on the received light control information.
Lighting device and luminaire using the same
A lighting device includes a step-down chopper circuit and a controller configured to control the step-down chopper circuit. The controller is configured to turn on and off a low-side switching device in the step-down chopper circuit at a fixed frequency. The controller includes an operation unit configured to determine a reference voltage value, an output unit configured to output, as a difference signal, a difference between the reference voltage value determined by the operation unit and an average value of a voltage proportional to a current flowing through the switching device, and a control circuit configured to determine an on-time period of the switching device. The control circuit includes an oscillator configured to generate a voltage signal shaped like teeth of a saw. The control circuit is configured to determine the on-time period of the switching device based on the voltage signal and the difference signal.
Light system for emphasizing objects
Light-emitting devices (100) and methods for operating light-emitting devices are disclosed. Each of the light-emitting devices (100) comprises a plurality of light sources (112A-112F) for illuminating a target (120), wherein each of the light sources is configured to emit light within a predetermined color range. Each of the light-emitting devices comprises means (140) for automatically adjusting the spectral power distribution of light-emitted by the light-emitting device on basis of the color of the target or a region of the target illuminated by the light-emitting device, such that light emitted by the light-emitting device is made increasingly compliant or even compliant with a criteria of a predetermined color characteristics.
Light emitting device and method for manufacturing a light emitting device
A method for manufacturing a light emitting device having a light emitting element and a resin layer containing fluorescent material particles and a filler which reflects light comprises a fluorescent material precipitation process for precipitating the fluorescent material particles in advance of the filler. A light emitting device comprises a base body; a light emitting element mounted on an upper surface of the base body via a mounting portion; and a sealing resin for sealing the light emitting element. The sealing resin comprises: a fluorescent material-containing first layer for covering the light emitting element on and above the mounting portion, a fluorescent material-containing second layer formed on an upper surface of the base body around the mounting portion, and a filler-containing layer formed on the fluorescent material-containing second layer around the mounting portion.
Turn on optimization
Systems, methods, and computer program products for turn on optimization of a driver for one or more light sources are disclosed. A duty cycle value is selected from a table. The selected duty cycle corresponds to the target output current of the driver and has a corresponding voltage. The selected duty cycle is applied to the driver. An output voltage at the light source is measured, and compared to the corresponding voltage of the selected duty cycle to produce a voltage comparison result. Based on the comparison result, the selection of the duty cycle is adjusted. Additionally, an output current of the light source is measured and compared to the target output current, to produce a current comparison result. An adjustment coefficient is applied to a feedback circuit of the driver based thereon, wherein the feedback circuit adjusts a switching frequency of the driver based on the selected duty cycle.
Single wire serial interface
A single wire serial interface for power ICs and other devices is provided. To use the interface, a device is configured to include an EN/SET input pin. A counter within the device counts clock pulses sent to the EN/SET input pin. The output of the counter is passed to a ROM or other decoder circuit. The ROM selects an operational state for the device that corresponds to the value of the counter. In this way, control states may be selected for the device by sending corresponding clock pulses to the EN/SET pin. Holding the EN/SET pin high causes the device to maintain its operational state. Holding the EN/SET pin low for a predetermined timeout period resets the counter and causes the device to adopt a predetermined configuration (such as off) until new clock pulses are received at the EN/SET pin.
Device and method for communication between an electronic module and a detection sensor comprising a light source
Method for communication between an electronic module and a sensor having a first branch, including a light source LED and a first switch, and a second branch including a second switch, supplied by a supply line, the module measuring modulations of intensity of current of the line. When the light source is turned on or in the process of turning on/turning off, the sensor causes i) modulation of the intensity of the current in the LED between a high state and a low state, ii) modulation of the intensity of the current in the second branch so that the intensity of the current is always in a higher state, and, in case of detection, iii) dispatches to the electronic module a modulation of the intensity of current in the second branch, when the intensity of current in the LED is in the low state.
System using shunt circuits to selectively bypass open loads
According to an exemplary embodiment, a shunt circuit includes a floating shunt switch configured to bypass at least one load, for example at least one LED, among a plurality of series-connected loads, such as a plurality of series-connected LEDs in a lighting system, responsive to a high-side control signal. The at least one load has terminals connected across the shunt circuit. The shunt circuit further includes a high-voltage level-shift up circuit configured to shift a low-side control signal up to the high-side control signal using a voltage of at least one of the terminals of the at least one load. The floating shunt switch can be configured to bypass the at least one load responsive to a failure of the at least one load.
Light source control device and game machine
A light source control device configured to control a plurality of light sources provided in a game machine, an anode of each of the plurality of light sources being connected to one of at least one first signal wire, a cathode being connected to one of a plurality of second signal wires, the light sources differing from each other in a set of the connected first signal wire and second signal wire, has a plurality of first output pins, a plurality of second output pins, an interface, a storage, a dynamic controller, a period-setting unit, and a gradation controller. Each of the plurality of first output pins is provided in corresponding one of the at least one first signal wire. The plurality of first output pins connect to a drive circuit that switches whether power is supplied to the first signal wire.
Circuit arrangement and method for operating and dimming at least one LED
Various embodiments may relate to a circuit arrangement and a method for operating and dimming at least one LED. In this case, the LEDs are supplied from a bridge arrangement, wherein, in order to dim the at least one LED, the frequency of the control signals is increased with increasing dimming until a predefinable dimming threshold value. In order to adjust dimming values which are below the predefinable dimming threshold value, the output signal of the bridge arrangement is short-circuited by means of a short-circuit device during predefinable periods.
Switched-capacitor isolated LED driver
A switched-capacitor voltage converter which is particularly well-suited for receiving a line voltage from which to drive current through a series of light emitting diodes (LEDs). Input voltage is rectified in a multi-level rectifier network having switched capacitors in an ascending-bank configuration for passing voltages in uniform steps between zero volts up to full received voltage VDC. A regulator section, operating on VDC, comprises switched-capacitor stages of H-bridge switching and flying capacitors. A current controlled oscillator drives the states of the switched-capacitor stages and changes its frequency to maintain a constant current to the load. Embodiments are described for isolating the load from the mains, utilizing an LC tank circuit or a multi-primary-winding transformer.
Lighting apparatus and illuminating fixture with the same
A control circuit selects a first control mode in which a switching element is turned on and off so that a current flows through an inductor in a critical or discontinuous mode, thereby fully lighting a light source load. The control circuit selects one of a second control mode in which On time of the switching element is changed and a third control mode in which an oscillating frequency is changed according to an interval, to which a designated dimming ratio corresponds, to dim the light source load. An output capacitor connected between output terminals of a step-down chopper circuit smoothes pulsation component of an output current supplied to the light source load and has capacity set so that a ripple ratio of the output current is less than 0.5 at full lighting of the light source load.
Illumination devices and related systems and methods
Illumination devices and related systems and methods are disclosed that can be used for LCD (Liquid Crystal Display) backlights, LED lamps, or other applications. The illumination devices can include a photo detector, such as a photodiode or an LED or other light detecting device, and one or more LEDs of different colors. A related method can be implemented using these illumination devices to maintain precise color produced by the blended emissions from such LEDs. One application for the illumination devices is backlighting for FSC (Field Sequential Color) LCDs (Liquid Crystal Displays). FSC LCDs temporally mix the colors in an image by sequentially loading the red, green, and blue pixel data of an image in the panel and flashing the different colors of an RGB backlight. Precise and uniform color temperature across such a display can be advantageously maintained by continually monitoring ratios of photodiode currents induced by the different colored LEDs in each illumination device as each color is flashed.
Mixing device having induction heating
The present invention concerns a mixing device having a preferably rotating container for accommodating material to be mixed, at least one mixing tool arranged in the interior of the container and a heating device for heating the material to be mixed. To provide a mixing device of the kind set forth in the opening part of this specification which permits the fastest possible heating of the material to be mixed, preferably also to temperatures higher than 200° C., it is proposed in accordance with the invention that the container at least partially comprises an electrically conductive material and the heating device has at least one coil which can be excited by an electric alternating field and which is so arranged that eddy currents are produced in the electrically conductive material of the container by the magnetic field change which occurs when the current flow changes.
Methods and devices for configuring simplified, static, multi-hop wireless networks
Wireless stations (and their associated operation) making up a static, multi-hop wireless network are simplified because topological modeling and routing/scheduling decisions are shifted from the stations to a controller external to the network. The controller may determine routing paths and schedules for each of the wireless stations in a network based on the topology of a given network along with other network characteristics. Thereafter, the so-determined paths and schedules are sent to the associated wireless stations. By simplifying the operation of a wireless station, the amount of energy required to be used by each station may be reduced thereby maximizing the lifetime of the network.
Call method of terminal and terminal using call method
A call method of a terminal and a terminal using the call method, are provided to adjust voice quality of a call in real time. The method includes analyzing a spectral component of a voice signal during a call and selecting a corresponding frequency response channel according to an analysis result of the spectral component of the voice signal.
Wake-up broadcast including network information in common designation ad hoc wireless networking
A data communication device includes both a two-way communications component having a first receiver and transmitter, and a second receiver. The second receiver activates the two-way communications component from a dormant state upon receipt by the second receiver of a wake-up broadcast that includes a wake-up identifier of the data communication device. A method of providing information via the second receiver—which information is auxiliary to the wake-up of the two-way communications component—includes transmitting a wake-up broadcast capable of being received by the second receiver. The wake-up broadcast includes a data construct including a wake-up identifier and the auxiliary information. The wake-up identifier may or may not be a wake-up identifier of the data communication device. Nevertheless, the auxiliary information is received and recorded by the data communication device via the second receiver with the two-way communications component remaining in the dormant state.
Methods and systems for facilitating data communication
In accordance with one or more embodiments of the invention, methods and systems for facilitating data communication are presented. Requests to communicate data are received that include data indicative of a location of a target remote mobile computing device. A location to be searched for a target devices is determined, and location-based data of mobile devices is accessed. Potential target mobile devices are identified and data consistent with the request is sent to one or more potential targets.
Temporary collaborative ad-hoc network of hardware nodes to perform function
That a trigger for creating a temporary collaborative ad-hoc network of hardware nodes has occurred is detected. In response, the temporary collaborative ad-hoc network is created via intercommunication among the hardware nodes. After the temporary collaborative ad-hoc network has been created, the temporary collaborative ad-hoc network performs a given function. A particular hardware node within the temporary collaborative ad-hoc network can perform a roll call request so that it ascertains a list of the hardware nodes within the temporary collaborative ad-hoc network. Performing the roll call request can include ascertaining that a correctness of the list of the hardware nodes satisfies a threshold, such that the correctness of the list of the hardware nodes is not necessarily completely correct.
Method and apparatus for performing contention based random access
The disclosure provides a solution for random access in a wireless system, in which there is a plurality of available uplink carriers for the random access. The UE can monitor a random access response to get load related information for the plurality of available uplink carriers, determine one low-loaded uplink carrier according to the load related information, and perform random access in the low-loaded uplink carrier. The eNB can determine load related information for uplink carriers in a wireless system, and send a random access response that contains the load related information for multiple uplink carriers in the wireless system.
Orthogonal frequency division multiplexing (OFDM) communication system and method to schedule transfers of first and second user communications
An Orthogonal Frequency Division Multiplexing (OFDM) communication system and method to schedule transfers of first and second user communications between the FDM communication system and a Wireless Communication Device (WCD) are provided. The OFDM communication system in one example includes an OFDM scheduling system to process Quality-of-Service Class Identifiers (QCIs) and determine if the first user communication having a first QCI can be scheduled subsequently and if the second user communication having a second QCI can be scheduled in place of the first user communication, and if the first user communication can be scheduled subsequently and the second user communication should be scheduled in place of the first user communication, then schedule the second user communication in place of the first user communication. An OFDM transceiver wirelessly transfers the second user communication in place of the first user communication between the OFDM communication system and the WCD based on scheduling.
Base station and related radio communication method
Provided are a terminal device and a retransmission control method that make it possible to minimize increases in overhead in an uplink control channel (PUCCH), even if channel selection is used as the method to transmit response signals during carrier-aggregation communication using a plurality of downlink unit bands. On the basis of the generation status of uplink data and error-detection results obtained by a CRC unit, a control unit in the provided terminal uses response signal transmission rules to control the transmission of response signals or uplink control signals that indicate the generation of uplink data. If an uplink control signal and a response signal are generated simultaneously within the same transmission time unit, the control unit changes the resources allocated to the response signal and/or the phase point of the response signal in accordance with the number and position of ACKs within the error-detection result pattern.
Selective intra and/or inter prediction video encoding based on a channel rate
Selective intra and/or inter-prediction video encoding. Based upon anticipation of a future communication channel rate (e.g., actual physical layer channel rate) or video data rate of a communication channel, a given prediction mode for video encoding may be adaptively selected. Prediction of a future or expected value corresponding to at least one parameter associated with the communication channel (e.g., channel rate, video data rate, etc.) can drive operational mode selection/adaptation in accordance with video coding. Alternatively, one or more actual measured values corresponding to at least one parameter can drive operational mode selection/adaptation in accordance with video coding. In some instances, neither intra-prediction nor inter-prediction is performed in accordance with a non-feedback operational mode, and an input video signal undergoes compression (e.g., without intra-prediction and/or inter-prediction). Transitioning between various video coding operational modes may be made in different manners and based on different criteria as desired in various given applications.
Coordinating data communications using frequency division multiplexing and time division multiplexing
A method and system for Bluetooth® and Wireless LAN coexistence may include controlling wireless local area network (WLAN) communication and Bluetooth® communication in a coexistence system that handles at least a WLAN communication protocol and a Bluetooth® communication protocol based on time division multiplexing (TDM) and adaptive frequency hopping (AFH). Switching may occur between the WLAN communication and the Bluetooth® communication based on the TDM and the AFH. In one embodiment of the invention, the switching may occur adaptively. Notwithstanding, in instances where it may be determined that AFH is disabled, switching to TDM may occur. WLAN communication and/or Bluetooth® communication may be disabled or enabled based on a state of at the WLAN communication and/or the Bluetooth® communication. Use of the AFH may be enabled or disabled based on a link status of the WLAN communication and/or the Bluetooth® communication.
Method and apparatus for transmitting a-priori information in a communication system
Methods and apparatuses are provided for transmitting and receiving a-priori information. The transmitting method includes generating, by circuitry of a transmission apparatus, the a-priori information based on a sampling frequency and a channel bandwidth of a signal to be transmitted. The a-priori information is appended to a data signal by the circuitry. The circuitry transmits the data signal including the appended a-priori information to a reception apparatus.
System and methods for using communication resources
Embodiments of a system and method for using radio frequency (RF) resources are generally described herein. In some embodiments, the system includes an antenna subsystem including antenna apertures. The system may also include devices configured to execute a plurality RF tasks. The system may further include memory to store a prioritized list of RF tasks. The system may still further include a manager to receive a request from an RF task to use an antenna aperture. The manager may insert the RF task into a prioritized list of RF tasks within a time duration specified in the request. The manager may spawn a thread to execute the RF task through the antenna aperture, within a time frame depending on the RF task's position in the prioritized list.
Wireless communication apparatus, mobile terminal and wireless communication method
[Object] To implement wireless communication also with a communicating apparatus that is a limited band terminal capable of receiving only part of frequencies.[Overcoming Means] Provided are a frequency channel allocating section (10) that allocates frequency channels, a terminal reception quality information processing section (6) that calculates an optimal modulation rate and required transmit power for each subcarrier, a subcarrier power control section (12) that controls a level of transmit power for each subcarrier, and a determining section (10) that checks a reception bandwidth of a communicating apparatus, while determining whether the communicating apparatus is a full band terminal capable of receiving all the frequency channels in the system band or is a limited band terminal capable of receiving only part of frequencies, and when the communicating apparatus is the limited band terminal, the transmit power of all or part of subcarriers is decreased in a frequency channel that is adjacent to a reception band allocated to the communicating apparatus and that is allocated to another communicating apparatus.
Method of coexistence of multiple wireless fire systems
A method and apparatus are provided, the method incorporating the steps of detecting other interfering wireless gateways of the security system, their frequency hopping pattern, their phase relative to a time reference and a dwell time relative to the time reference, selecting a channel set and a phase of operation for communicating with a plurality of sensors relative to the time reference using frequency hopping based upon the detected frequency hopping pattern, the phase and dwell time of the other wireless gateways, communicating with the plurality of sensors and periodically comparing its phase of operation with the phase of the other interfering wireless gateways and adjusting its phase based upon the comparison with the phase of the other interfering wireless gateways.
Systems and methods for coordinating transmission of data packets based on frame type detection in a base station
A system, method, base station, and computer program product for coordinating communication of data packets between a user device and an application server is described. The data packets may correspond to a bit-stream of encoded video data. In one aspect, the base station includes a memory and a computer processor operatively coupled to the memory, to a radio transmitter, and to a radio receiver. The processor is configured to detect a video frame type of the data packets and transmit one or more of the plurality of data packets based on the detected video frame type. For example, the processor may transrate, drop, or schedule the data packet for transmission based on the detected video frame type.
Adaptive generation of channel state feedback (CSF) based on base station CSF scheduling
Adaptive generation of channel state feedback (CSF) based on base station CSF scheduling. CSF report scheduling information may be received. CSF metrics may be generated based at least in part on the CSF report scheduling information. A CSF report including the CSF metrics may be transmitted to the base station. Periodicity of CSF report scheduling or other CSF report scheduling factors may be taken into consideration in generation of the CSF metrics.
Method and arrangement for power allocation in communication systems
In a method of allocating power to data streams in a communication system, providing (S10) CQI for each of a plurality of data streams between a radio base station node and a user equipment node in the system. Subsequently, allocating (S20) transmit power to each of the plurality of data streams based at least on the provided respective CQI, and determining coding and modulation (S30) for the data streams based on at least the allocated power.
Method of selecting transmission parameter and dynamic spectrum allocation apparatus
A method of selecting a transmission parameter and a spectrum allocation apparatus are provided. The method of selecting a transmission parameter involves collecting frequency band information comprising a frequency bandwidth and communication environment information comprising a power density of noise, constituting a plurality of single-objective fitness functions comprising a bandwidth fitness function based on data transmission using two frequency bands, using the frequency band information and the communication environment information, constituting a multi-objective fitness function obtained by assigning a weight value to each of the plurality of single-objective fitness functions, and selecting the transmission parameter by applying a genetic algorithm to the multi-objective fitness function.
Efficient almost blank subframe allocation
A base station transmits a message to a plurality of wireless devices in connected mode. The message comprises a subframe allocation bitmap indicating a plurality of subframes. The plurality of subframes comprises a plurality of almost blank subframes. During majority of symbols of an almost blank subframe of a base station, no signal is transmitted by the base station or signals are transmitted at an almost blank subframe power level that is different from a transmit power during a non-almost blank subframe.
Method and apparatus for compressing and transmitting ultra high speed data
Voiceband compression techniques are employed in order to enable an RF telecommunications base station to accommodate data signals of high speed voiceband modems and FAX machines. An Ultra-High Speed Codec supports voiceband modem and FAX transmissions up to 14.4 kb/s and operates using four 16-phase RF slots. Because these codecs transmit information over several RF slots which can be contiguous, the slots within RF communication channels are dynamically allocated. The Dynamic Time slot/Bandwidth Allocation feature detects and monitors the data transmission and forms a data channel from the necessary number of slots.
Systems and methods for signaling and determining transmission time interval bundling parameters
A method for determining transmission time interval (TTI) bundling parameters on a wireless communication device is described. The method includes receiving signaling that indicates a TTI bundling configuration. The method also includes receiving signaling that indicates an uplink grant. The method further includes determining at least one TTI bundling parameter based on the TTI bundling configuration and the uplink grant. The method additionally includes transmitting a signal based on the at least one TTI bundling parameter.
Base station, user equipment and methods therein for control timing configuration assignment in a multiple cell communications network
Example embodiments presented herein are directed towards a base station and method therein, for configuring control timing to and from a user equipment in a multiple component cell communications network. Example embodiments presented herein are also directed towards a user equipment and method therein, for configuration of control timing for a user equipment in a multiple component cell communications network.
Secondary carrier activation/deactivation method and apparatus for mobile communication system supporting carrier aggregation
A method for activating/deactivating secondary carriers of a User Equipment (UE) in a mobile communication system supporting carrier aggregation is provided. The method comprises, receiving a control message including an activation/deactivation Control Element (CE) in a first sub-frame from a Base station, identifying an activation command or a deactivation command of at least one secondary carrier based on the control message, determining whether a current sub-frame is a second sub-frame or not, performing at least one first operation for the at least one secondary carrier in a second sub-frame, and performing, when the activation/deactivation CE indicates deactivation of the at least one secondary carrier, at least one second operation for the at least one secondary carrier no later than the second sub-frame.
Systems and methods for bundling resource blocks in a wireless communication network
A base station for use in a wireless network is operable to communicate with a plurality of mobile stations. The base station transmits a downlink frame to a first mobile station. The downlink frame comprises time-frequency resource elements allocated in a plurality of physical resource blocks. The base station transmits the plurality of physical resource blocks in bundles having a bundle size that is a function of the system bandwidth configuration and the base station uses the same precoder for all physical resource blocks in the same bundle. The bundle size is from one physical resource block to three physical resource blocks.
Extending physical downlink control channels
Methods and apparatus for transmitting and receiving Downlink Control Information (DCI) in a single cell in order to support communication over multiple cells. The DCI is conveyed by DCI formats transmitted through Physical Downlink Control CHannels (PDCCHs) in a UE-Common Search Space (UE-CSS) and in a UE-Dedicated Search Space (UE-DSS). A distinct UE-DSS is defined in the single cell for each of the multiple cells. Each distinct UE-DSS has the same structure as a conventional UE-DSS and a location that is determined by the same parameters as the location of the conventional UE-DSS and by the respective cell identity (Cell_ID).
Method and apparatus for reconfiguring a common channel
The present invention for reconfiguring a common channel receives modified channel configuration information of a first common channel through a second common channel, and determines a starting time of reconfiguring the first common channel, according to a type of an information element including the modified channel configuration information. Also, the present invention reconfigures the first common channel from the determined starting time. According the present invention, the common channel, such as the MCCH, may be reconfigured more efficiently.
Packet scheduling in communications
A method is disclosed for scheduling packet data in a communications system. The method includes configuring, in a network apparatus, semi-persistent transmission resources to a user equipment via higher layer signalling, wherein the configuring step includes pre-allocating a data transmission resource and assigning a scheduling request resource to the user equipment. A confirmation message is transmitted to the user equipment from the network apparatus, wherein the confirmation message informs the user equipment that the user equipment is able to start transmitting data on a physical uplink shared channel PUSCH to the network apparatus by using the pre-allocated data transmission resource and a pre-configured transmission format, wherein the pre-allocated data transmission resource is linked to the corresponding confirmation message, the corresponding confirmation message being linked to the corresponding semi-persistently assigned scheduling request resource.
System and method for detecting mutually supported capabilities between mobile devices
A system and method for detecting enhanced services supported by mobile devices is described. In some cases, the system transmits a message to a called device requesting information about the device. In some cases, the transmitted message is answered by a user of the device. In some cases, the transmitted message is automatically received and answered by the called device. In some cases, the system presents information about a service supported by a called party during a call placed to the party.
Detection and mitigation of denial-of-service attacks in wireless communication networks
A method that incorporates teachings of the subject disclosure may include, for example, obtaining data relating to a set of collision events on a shared channel on a wireless network according to a contention-based access protocol in which a plurality of terminals attempt to access the channel contemporaneously. A probability of collision in the channel is estimated and a probability distribution of time intervals between access attempts is generated based on the estimated probability of collision. Empirical and theoretical cumulative distribution functions for the time intervals are calculated, and compared to identify a malfunctioning terminal not operating in accordance with the protocol. Other embodiments are disclosed.
Signal processing to extract a pedestrian's moving direction
Disclosed here are methods and systems that relate to determining a moving direction of a mobile device user. The methods and systems relate to using an inertial navigation system such as an accelerometer and gyroscope to aid in the determination of the moving direction of the user. The methods and systems may receive an acceleration reading associated with the mobile device, and determine a step frequency of the user based on the acceleration reading. The methods and systems may determine a theoretical model to fit the acceleration reading, and may determine the moving direction of the user based on the theoretical model.
Adaptive location updating
A location of a network user computing device is determined relative to a location of a point of interest. If the user device is determined to be stationary, the user device is monitored for movement, the movement resulting in re-determining the location of the user device relative to a location of the point of interest. If the user device is determined to be moving, the velocity of the user device is matched with a predetermined velocity, and a preliminary estimated time of arrival to the point of interest is determined based on the predetermined velocity matched to the user device. At a later time that is based on a function of the preliminary estimated time of arrival, an estimated time of arrival to the point of interest is verified based on the predetermined velocity matched to the user device.
Method for performing device-to-device communication in wireless access system and apparatus for same
The present invention discloses a method for performing device-to-device communication in a wireless access system supporting the device-to-device communication, and an apparatus for same. More specifically, the method comprises the steps of: a first device receiving from a base station resource allocation information for device-to-device communication with a second device; the first device transmitting to the second device an initial signal for device-to-device communication through a resource that is allocated; the first device scanning a response signal which is transmitted from the second terminal; and the first device performing the device-to-device communication with the second device when the first device receives the response signal from the second device, wherein the initial signal comprises a first reference signal for matching synchronization between the first and second devices, and a second reference signal for estimating a channel between the first device and the second device.
Communication network nodes and methods performed therein
A synchronization module is associated with a network node of a communication network which comprises at least one Synchronization Master entity. The synchronization module has knowledge of a plurality of Synchronization Master references. Endpoints of paths of the plurality of Synchronization Master references are obtained. Each of the paths extends between one Synchronization Master Entity and the first or the second access network node. The paths are obtained from a synchronization report module based on the obtained endpoints. For each of the Synchronization Master references, a first path and a second path of the obtained paths are selected. A time synchronization inaccuracy value between the first and the second access network node is calculated based on the selected paths. A Synchronization Master reference is selected based on the calculated time synchronization inaccuracy values, and the first and the second access network node are notified which Synchronization Master reference was selected.
Methods and arrangement for supporting base station synchronization by use of long wave signaling
Methods and arrangements in a support node and in connection with a base station for supporting synchronization of the base station. The methods and arrangements involve conveying high-accuracy time information via long-wave signaling to the base station, which implies e.g. that base stations in unfavorable radio conditions may be synchronized without access to reliable IP connections or similar.
Cooperative phase tracking in distributed multiple-input multiple-output system
A cooperative phase tracking system allows access points of a wireless network (e.g., a WiFi network) to use a clock or oscillator that may be different or independent from other access points of the same wireless network. As such, the cooperative phase tracking system eliminates a limitation of using a same clock (or oscillator) among the access points and at the same time may allow more access points to be installed for an associated wireless network to serve a larger area. Moreover, the cooperative phase tracking system may attribute intensive computations of relative phase drifts associated with the access points to a dedicated coordinator, thereby alleviating workload of the access points of the wireless network.
Method and apparatus for radio link synchronization and power control in CELL—FACH and idle mode
A method and apparatus for radio link synchronization and power control in CELL_FACH state and idle mode are disclosed. A wireless transmit/receive unit (WTRU) transmits a random access channel (RACH) preamble and receives an acquisition indicator acknowledging the RACH preamble via an acquisition indicator channel (AICH) and an index to an enhanced dedicated channel (E-DCH) resource. The WTRU determines a start of an E-DCH frame. An F-DPCH timing offset is defined with respect to one of the RACH access slot and an AICH access slot carrying the acquisition indicator. A relative F-DPCH timing offset may be signaled to the WTRU and the WTRU may determine a start of an E-DCH frame based on the relative F-DPCH timing offset and timing of an AICH access slot including the acquisition indicator. The WTRU may transmit a dedicated physical control channel (DPCCH) power control preamble before starting an E-DCH transmission.
Terminal device for controlling uplink signal transmission power, and method therefor
Embodiments of the present invention relate to a method and terminal device for controlling uplink transmission power. According to one embodiment, in which a terminal that communicates with cells of each timing alignment (TA) group controls uplink transmission power in the event a plurality of TA groups including one or more cells exists in a wireless communication system, a method includes: determining the uplink transmission power for at least one channel in the event at least two channels from among a physical uplink control channel (PUCCH), a physical uplink shared channel (PUSCH) including a plurality of pieces of uplink control information (UCI), a PUSCH including no UCI, a physical random access channel (PRACH), and a sounding reference signal (SRS) are simultaneously transmitted in the same subframe in each specific cell of the plurality of TA groups. The uplink transmission power is determined in consideration of a TA group index.
Dynamic transmit power and signal shaping
This disclosure provides several mechanisms for adapting transmit power spectral density (PSD). A communications device may adapt the power spectrum utilized at the transmitter based, at least in part, on the channel conditions or PSD constraints associated with the communications medium between the transmitter and a receiver device. Additionally, the transmit PSD may be adapted based, at least in part, on a total power capability associated with a transmitter. Power is allocated to improve throughput and utilization of the communications channel. A transmission profile may be selected based, at least in part, on the notch depth. The transmission profile may be associated with symbol timing parameters. The communications device may maintain a plurality of selectable pulse shapes that are optimized for different notch depths.
Transcendental function look-up tables for thermal noise power floor estimation
Embodiments herein relate to a method in a radio base station for performing thermal noise power floor estimation in a radio communications network. The radio base station computes table entries for a table for a transcendental function evaluation, which table is of minimized size with a range of table entries defined by a smallest table entry, a largest table entry, and a number of table entries. The radio base station further estimates a thermal noise power floor by performing a transcendental function evaluation in computing a product representing a cumulative probability function, which cumulative probability function is related to the thermal noise power floor. The transcendental function evaluation is performed by using table look ups of the table with the computed table entries.
Method for determining uplink transmission power and user equipment
The present invention provides a method and apparatus for determining uplink transmission power, and a method and apparatus for uplink power control. The base station of the present invention provides user equipment (UE) with UE specific weights for downlink path loss for uplink power control when the UE simultaneously transmits signals using a plurality of nodes. The UE then determines uplink transmission power by applying the UE-specific weights to the downlink path loss.
Error rate control apparatus
A radio communication apparatus transmitting a data signal and a control signal to another radio communication apparatus where a controller controls transmission power of the control signal separately from transmission power of the data signal based on a feedback signal from the other radio communication apparatus. A method for controlling transmission power of a control channel includes determining a transmission power of a control channel based on a response from user equipment and controlling transmission power of the control channel separately from transmission power of a data signal based on the determined transmission power of a control channel.
Duty cycling to reduce average transmit power
A user device receives a command to transmit information at a transmit power level specified by a wireless carrier. The user device determines whether transmitting the information at the specified transmit power level using a first duty cycle will cause the user device to violate a condition. Responsive to determining that transmitting the information at the specified transmit power level using the first duty cycle will cause the user device to violate the condition, the user device determines a new duty cycle that is lower than the first duty cycle, and transmits the information using the new duty cycle.
Method and device for open loop uplink access power control
A method for open loop uplink access power control comprises: estimating the uplink transmission path loss according to received signal power of a station (STA) and the transmit power of a central access point (CAP); determining the transmission bandwidth allocated by the CAP for uplink transmission and deviation adjustment of the CAP; determining a modulation-coding mode and determining requirements of the carrier-to-noise ratio corresponding to the modulation-coding mode; and calculating a target value for adjusting the transmit power of the STA. Also disclosed is a device for open loop uplink access power control.
Technique for maintaining a radio time base
A technique for maintaining a radio time base used to schedule communication in a radio network (100) is provided. A method implementation (300) of the technique comprises determining (310) a course of a frequency relation; switching off (330) a reference oscillator (210) during a period of reduced power (418; 420); predicting (320) the frequency relation; restoring (340) the radio time base in or after the period of reduced power; and communicating (350) in the radio network at a time determined by the restored radio time base. The frequency relation is a relation between the reference oscillator and a clock (214). The predicting is based on a result of the determination and the restoring is based on a result of the prediction. The frequency relation is predicted for a given time in or after the period of reduced power.
Optimized resource management in multi-radio access technology devices
Methods and systems are described herein for adaptively adjusting the power level of a wireless transceiver and a cellular transceiver in a telecommunications device to correspond to the usage and data throughput of the device. The device can also dynamically enter different modes of operation based at least in part on network activity data usage on a wireless data network provided by the telecommunications device. By controlling the power levels, the power usage of the device can be reduced in order to increase efficiency of battery usage.
Wakeup beacons for mesh networks
This disclosure describes techniques and apparatuses for wakeup beacons for mesh networks, which often permits nodes of a mesh network to save power when operating in a power-save mode. These wakeup beacons can be sent at high transmission rates and/or be small in size, thereby reducing the time a node must be awake to transmit and receive communications.
Handling of access capability information in a mobile network
In a mobile network with a plurality of access networks (210, 220), a control node (110) which is controlling access of a user equipment (300) to that one of the access networks (210, 220) which is currently used by the user equipment (300) determines an access capability of the user equipment (300) in said access network (210, 220), e.g. support of voice communication over packet switched access. The control node (110) provides an indication of the determined access capability to a subscriber database (150) associated with the user equipment (300). The indication may then be retrieved from the subscriber database (150) and be used to control termination of a connection to the user equipment (300).
Method and apparatus for service selection and indication
A technique for providing a service availability indication to a user terminal is described. In a method realization, the technique comprises providing a data structure representative of user terminals and of inter-terminal relationships derived from one or more communication parameters pertaining to communications between the user terminals. Additionally, for at least some of the user terminals service utilization information for each of a plurality of services is provided. The technique further includes selecting, for at least one user terminal and from the plurality of services, a service not used by the at least one user terminal, wherein the service selection is based on the service utilization information provided for user terminals having a predefined association with the at least one user terminal as determined by the inter-terminal relationships, and sending a message indicative of the selected service to the at least one user terminal.
Channel searching method and apparatus for receiving broadcast signal using the same
A channel searching method may include setting a first channel in a broadcast signal, determining signal strength of the broadcast signal and generating an automatic gain control signal for the first channel, and when the signal strength satisfies a preset first requirement and the automatic gain control signal satisfies a preset second requirement, skipping demodulation of the first channel.
Topology discovery based on explicit signaling
In one embodiment, a method for automatically creating a network route using a discovered IP address includes a first network device creating a connection-oriented interface with a first radio base station (RBS) for exchanging packets originating from the first RBS destined for the first network device, and for exchanging packets originating from the first network device destined for the first RBS, by receiving a first HELLO packet originating from the first RBS destined for the first network device, and transmitting a first HELLO packet destined for the first RBS. The method includes receiving, via the connection-oriented interface, a first CONNECT packet from the first RBS, the first CONNECT packet including a first IP address of the second RBS. The method includes creating a first network route between the first RBS and the second RBS using the first IP address included in the first CONNECT packet.
System and method for robust multiple access network mobility in a network environment
An example method is provided in one example embodiment and includes establishing a mobility context associated with a user equipment that includes a designation of a first radio access network as a primary access network and a second radio access network as a secondary access network. The method further includes defining an initial value for a data count variable representative of a number of consecutive uplink packets associated with the user equipment received over the first radio access network. The method further includes receiving at least one first uplink packet associated with the user equipment from at least one of the first radio access network and the second radio access network, modifying a value of the data count variable when the first uplink packet is received over the second radio access network, setting the value of the data count variable to the initial value of the data count variable when the first uplink packet is received over the first radio access network, and modifying the mobility context if the value of the data count variable is equal to a predetermined value.
Apparatus and method for management of service requests in an overload environment
A system that incorporates the subject disclosure may include, for example, responsive to a determination that a number of failed service requests directed to a first access technology exceeds a threshold for a maximum number of failed service requests, performing cell selection associated with a second radio access technology during an overload mitigation time duration; and responsive to a determination of an expiration of the overload mitigation time duration, transmitting additional service requests associated with the first radio access technology. Other embodiments are disclosed.
Interference suppression in a wireless communication network
An interference suppression method, base station and controlling node of the base station are disclosed. In the method, the controlling node informs via a first control signal the base station which is broadcasting a first synchronization signal containing a first cell identity (ID) and a first reference signal, of broadcasting a second synchronization signal containing a second cell ID and a second reference signal. The controlling node then informs via a second control signal the base station of adjusting signal powers of the first reference signal and the second reference signal to trigger a handover from the first cell ID to the second cell ID.
Method and apparatus for facilitating a beacon-assisted handover to a home node-B for users on an active call
Methods, apparatuses, and computer program products are disclosed for facilitating a beacon-assisted handover from a macro network to a femto cell during an active call. A femto cell management system assigns a unique identifier to a femto cell, which the femto cell utilizes to broadcast a beacon at a frequency different than the operating frequency of the femto cell. A wireless terminal receives a control message from the macro network directing the wireless terminal to scan particular frequencies. The wireless terminal subsequently provides a report to the macro network identifying attributes ascertained from the scan, which includes attributes associated with the beacon. The macro network then performs a handover from the macro network to the femto cell as a function of the attributes.
Method for transceiving a signal to/from a mobile femtocell in a wireless communication system, and apparatus for same
The present application relates to a method in which a terminal processes a signal in a wireless communication system in which communication between the terminal and a mobile femtocell is being performed via a first communication link. More particularly, the method comprises the following steps: disconnecting the first communication link and establishing a second communication link to a neighbor cell in the event the terminal and the mobile femtocell enter the coverage area of the neighbor cell; delivering information, relating to the first communication link, to the mobile femtocell during communication with the neighbor cell, performed via the second communication link; and reestablishing the first communication link to the mobile femtocell on the basis of the information relating to the first communication link in the event the mobile femtocell and the terminal leave the coverage area of the neighbor cell.
Selection of a radio cell sector
The present disclosure concerns radio communication. In one of its aspects, the technology presented herein concerns a method for selecting the most suitable secondary carrier for carrier aggregation when employing a combined radio cell including multiple radio sectors A—1, A—2, A—3 of a first Cell (Cell A) and multiple radio sectors B_x, B_y, B_z of a second cell (Cell B).
Neighbor relation information management
Neighbor relation information management involves, for example: acquiring, reporting, and exchanging neighbor relation information. In some cases, neighbor relation information is acquired and/or reported in a manner that does not significantly impact other functionality of the access terminal. For example, an access terminal may be configured to acquire and/or report neighbor relation information only during one or more defined radio states. In some cases, the acquisition of neighbor relation information is based on a neighbor relation threshold. In some cases, an access terminal does not immediately report measured neighbor relation information and instead stores the information for reporting at a later time. In some cases, a transmitted indication is used to facilitate retrieval of neighbor relation information from an access terminal. In some cases, neighbor relation information acquired from an access terminal is exchanged over a direct interface between access points.
Method for efficiently updating secondary carrier information in a broadband wireless access system
The present invention relates to a method for updating secondary carrier information for preemptively allocating secondary carriers during handover and an apparatus for carrying out the method. A method in which a terminal performs handover in a broadband access system that supports multiple carriers according to one embodiment of the present invention comprises: a step in which a target base station receives, from a serving base station, a first message including carrier allocation information on at least one secondary carrier preemptively allocated to the terminal; a step of performing network reentry with the target base station; and judging whether the multi-carrier configuration of the serving base station and the multi-carrier configuration of the target base station are the same, and, if the configurations are different from each other, transmitting, to the target base station, a second message for requesting multi-carrier capability negotiation.
Base station device, mobile terminal, communication system, and radio communication method
A base station device characterized by including: a transmission portion that broadcast-transmits identification information indicating a first cell to a mobile terminal in an idle mode under control of the base station device; and a reception portion that receives information indicating a destination cell that the mobile terminal in the idle mode transmits when moving between cells; wherein when the base station device is a base station device forming a second cell adjacent to the first cell, the reception unit receives information indicating the second cell from the mobile terminal in the idle mode which has received the identification information indicating the first cell transmitted from another base station device forming the first cell, and receives information indicating the first cell from the mobile terminal in the idle mode which has received the identification information indicating the first cell transmitted from the base station device.
Method, apparatus and computer program product for priority based cell reselection in a multi-RAT environment
Systems and techniques for managing priorities are disclosed. A network sending broadcast and/or dedicated priorities to a mobile terminal may include priorities with respect to a radio access technology that does not support priority based reselection, such as for a legacy network that does not support priority based reselection. Priorities may be supplied to a mobile terminal to allow cell reselection decisions without using different cell reselection mechanisms in parallel. An indication of a plurality candidate cells with respect to cell reselection of a mobile terminal may be received and then a priority may be assigned to each candidate cells, where at least one candidate cell of the plurality of candidate cells does not support priority based cell reselection. The priorities may be provided to the mobile terminal.
Handover control system, user terminal, signaling relay apparatus, and session control apparatus
The invention discloses a technique to adequately control a handover of a user terminal in a data communication network and to decrease the number of signalings. According to this technique, when address of a user terminal (UE (101)) is not changed after a handover, UE (101) transmits a session update signaling message to carry out update processing of application session to P-CSCF 1 (121) corresponding to a location before the handover via P-CSCF 2 (123) corresponding to a location after the handover. P-CSCF 1 (121) transfers a session update signaling message to S-CSCF/AS (125) by using setup of signaling relating to UE (100) before the handover. At S-CSCF/AS (125), the application session is updated by using registration information of UE (100) before the handover.
Method, apparatus and system for cooperative resource scheduling and cooperative communication
A method, an apparatus and a system for cooperative resources scheduling and cooperative communication are provided. The method for cooperative resources includes: obtaining, by a network central controller, statistical information of all the users dominated by it in a first time period, dividing base stations to base station cooperative clusters according to the statistical information, and transmitting cooperative cluster dividing result to the base stations. The corresponding method and apparatus for cooperative communication are also provided. The solutions of the embodiments of the present disclosure can increase the transmission rate and user experience for the users at the edge of the cooperative cluster, and improve the fairness of the system users, while reducing the signaling overhead of the system, separating the computational tasks and reducing the difficulty of implementing the whole system.
Managing acknowledgment transmissions from multicast group members of a multicast group within a wireless communications network
Aspects of managing acknowledgment transmissions from multicast group members of a multicast group within a wireless communications network are disclosed. An access network transmits an announce message announcing a multicast session to a plurality of access terminals. One of the plurality of access terminals (i.e., a first responder) sends a BCMCSFlowRegistration message and an announce acknowledgment (ACK) message to the access network. In an example, the BCMCSFlowRegistration message and announce ACK message are sent within the same access probe on a reverse link access channel. Next, the access network sends, in response to the received BCMCSFlowRegistration message, a suppression message to request access terminals not to send announce acknowledgment messages for the announced multicast session. Alternatively, an application server sends the suppression message in response to the received announce ACK message. In either scenario, the access terminals receiving the suppression message suppress transmission of subsequent announce ACK messages.
Method and system for online communication
A method for online communication. The method comprises the following steps: a host obtaining user data, generating a network data packet according to the user data, and sending the generated network data packet to a mobile device; the mobile device parsing the received network data packet, and converting obtained effective data into a corresponding instruction; the mobile device coding the instruction, and sending first coding data obtained by coding to an external device; and the external device decoding the received first coding data, performing corresponding processing according to the instruction obtained by decoding, coding an obtained processing result, and sending second coding data obtained by coding to the mobile device. By means of the present invention, an external device can be commissioned on a host end, thereby improving the working efficiency of commissioning the external device.
Method and apparatus for sending and receiving channel quality indicators (CQIs)
A method and apparatus for sending and receiving channel quality indicators (CQIs) is disclosed. A CQI may be periodically sent or received. A CQI may also be sent or received upon request by a network.
Method for joint cell measurement and system information identification
The present disclosure relates to a method for determining an impact factor of a mobile communication system, wherein reference signals of a detection space defined by an impact factor are examined. Examining in this context refers to trying to detect, hence blindly detect, cell specific reference signals. The detection space is divided into a plurality of subsets, wherein each subset of the plurality of subsets is associated with a specific value of said impact factor. The specific value of said impact factor is identified for which an existence of cell specific reference signals has been detected in the subset associated with said specific value. Thus, the system information defined by a specific value of an impact factor is blindly detected.
Adaptive automatic detail diagnostic log collection in a wireless communication system
Systems, methods, and computer-readable storage media are disclosed that allow adaptive automatic detail diagnostic log collection for self-diagnosis and auto-recovery. In an embodiment, a group communication server determines that a fault has occurred with a group communication between wireless communication devices. The group communication server determines a set of events to log based on the fault, and instructs components that host the group communication to begin logging a set of events. Upon determining that logging the set of events can no longer be performed, such as due to too high of a load within a component of the group communication, the group communication server adapts the logging by logging a second set of events that will not cause too high a load, and can dynamically when resources become available.
Resilient data communications with physical layer link aggregation, extended failure detection and load balancing
Rapid channel failure detection and recovery in wireless communication networks is needed in order to meet, among other things, carrier class Ethernet channel standards. Thus, resilient wireless packet communications is provided using a physical layer link aggregation protocol with a hardware-assisted rapid channel failure detection algorithm and load balancing, preferably in combination. This functionality may be implemented in a Gigabit Ethernet data access card with an engine configured accordingly. In networks with various topologies, these features may be provided in combination with their existing protocols.
Method and processing device for optimal interference estimation and scheduling in a multi-hop wireless network with centralized control
A processing device equips a controller that is intended for providing data transmission schedules into multi-slot frames, based on a conflict graph representative of wireless links between nodes that interfere when transmitting simultaneously on a same radio channel, for nodes linked therebetween and belonging to a multi-hop wireless network using a MAC protocol supporting a slotted access. This processing device comprises a processing means arranged, during each frame, for updating the conflict graph from interference information provided by the nodes during this frame, and for refining this conflict graph from detection of hidden interferer nodes based on detected failures of data transmissions of the links between these nodes during at least the previous frame.
Phase transformation of repeated signals
Devices, systems, methods, and other embodiments associated with phase based transformation of repeated signals are described. In one embodiment, an apparatus includes duplication logic configured to duplicate a string of data to form a duplicate string of data. Transformation logic is configured to modify phases associated with the string of data to generate a modified string of data. Signal generation logic is configured to generate a signal for wireless transmission where the signal having at least the modified string of data and the duplicate string of data.
Dynamic data transmission adjustment method
A dynamic data transmission adjustment method in a wireless communication system. The system includes a base station and a user equipment. The base station and the user equipment communicate amongst themselves by using a first transmission technique. The method includes transmitting a plurality of frames between the base station and the user equipment using a regular transmission scheme according to the first transmission technique, and at least one iteration of the following steps: calculating a specific error rate in at least one specific region of the transmitted frames; and adjusting the regular transmission scheme when a value representative of the specific error rate associated to the specific region exceeds a predetermined threshold.
Apparatus and method for exploiting frequency diversity for neighboring cell measurements
Apparatus and method for wireless communication in a wireless communication network that includes receiving a signal from a network and measuring a minimum bandwidth of the received signal for a measurement region by shifting the measurement region of the signal based on a frequency offset and rotating the measurement region of the signal.
Method and device for monitoring control channel in a wireless communication system
Discloses are a method and device for monitoring a control channel in a wireless communication system. A user equipment receives a CFI (control format indicator), indicating a size of a control region within a subframe, via a first downlink control channel and confirms whether or not an extended control region is present in the subframe. If the extended control region is present in the subframe, the user equipment monitors a PDCCH (physical downlink control channel) within the control region and the extended control region.
LTE operation in small cells using dynamic shared spectrum
Systems, methods, and apparatus may be used to provide assistance for connection procedures in a hierarchical network where macro cells may be operating in licensed spectrum while small cells may be operating in dynamic and shared spectrums, such as TVWS. This may be done, for example, to allow an LTE system performing carrier aggregation (CA) to reconfigure itself to change from a supplementary cell (SuppCell) in one dynamic and shared spectrum channel to a SuppCell in another dynamic and shared spectrum channel.
Data flow transmission via aggregated bands
A network device may select one or more secondary bands in a spectrum based on a measure of quality of the one or more secondary bands; transmit information identifying the one or more secondary bands to an end unit; code, based on a coding scheme, a data flow to obtain multiple data signals that represent the data flow; and transmit, towards the end unit, the multiple data signals via the one or more secondary bands and a primary band.
Device for mobile communication
A mobile device (16) includes a transceiver (40) for mobile communication and a controller (44) configured to execute an authentication function for authenticating a registered user of the device, in which the device (16) has only a single operating element (48), the functionality of the single operating element (48) is limited to activating and deactivating the authentication function, the authentication function has the transceiver logged-on to a mobile communications network and enabling a detection of an active state and/or a location of the mobile device via the mobile network, and the operating element (48) and the transceiver (40) constitute the only data input and output ports of the controller (44).
Captive portal systems, methods, and devices
Embodiments of the present technology provide out-of-band captive portal devices, networks, and methods. An example of a method includes executing a redirection of a client request for network access to a captive portal login, initiating an association between the wireless controller and the client, receiving authentication credentials of client from the captive portal login, negotiating a change of authorization with a wireless controller in accordance with RFC 5176 protocol, wherein the controller includes a mapping to a captive portal Internet Protocol (IP) address, and redirecting the client to a URL specified in the client request for network access.
Methods and apparatuses generating a radio base station key in a cellular radio system
A Terminal Identity Token is created for identifying a User Equipment (UE) connected to a radio base station in a radio system. The UE communicates with the radio base station via a secure communication associated with an existing cryptographic key. The Terminal Identity Token is created based on a physical cell identity of a target cell known to both the UE and the radio base station, the terminal identity, and the existing key. By using the Terminal Identity Token, a secure communication can be established and enhanced without having to provide for additional security network components or additional signaling.
Localized network authentication and security using tamper-resistant keys
The invention provides a secure Wi-Fi communications method and system. In an embodiment of the invention, unique physical keys, or tokens, are installed at an access point and each client device of the network. Each key comprises a unique serial number and a common network send cryptographic key and a common network receive cryptographic key used only during the authentication phase by all components on the LAN. Each client key further includes a secret cryptographic key unique to each client device. During authentication, two random numbers are generated per communications session and are known by both sides of the wireless channel. Only the random numbers are sent across the wireless channel and in each case these numbers are encrypted. A transposed cryptographic key is derived from the unique secret cryptographic key using the random numbers generated during authentication. Thus, both sides of the wireless channel know the transposed cryptographic key without it ever being transmitted between the two.
Localized visible light communications among wireless communication devices
A method and apparatus for monitoring a localized region of a touch screen for a plurality of sensor inputs to identify a camera profile of at least one user equipment. In response to identifying the camera profile initiating a localized visual data exchange by displaying data within a region defined by the camera profile. Data communication is initiated with the user equipment over the alternative communication. In order to maintain a secure communication the invention periodically monitors the localized region of the touch screen for the plurality of sensor inputs identified as the camera profile during the localized visual data exchange while communicating over the alternative communication network.
Cell-ID translation in a location based system (LBS)
A Cell-ID translation module accesses a Cell-ID translation database to associate original Cell-ID information with new or changed (i.e., translated) Cell-ID information received by a handset. A Cell-ID database is effectively regularly changed rendering useless any third party databases previously collected without authorization by the relevant mobile operators. Cell-IDs collected by unauthorized third parties will either not be found in the third party database, or not match up to the correct location.
Method and device for supporting voice service in wireless communication system
An embodiment of the present invention relates to a method for supporting a voice service for a network terminal in a wireless communication system. The method includes transmitting an update location request (ULR) message to a home subscriber server (HSS) by a serving node, wherein if the serving node may not evaluate an IP multimedia subsystem (IMS) voice over PS session-supported indication value for the terminal, the ULR has no information on homogeneous support of IMS voice in a PS session.
Method and apparatus for facilitating handover utilizing a predefined attribute protocol
A method, apparatus and computer program product are provided to permit device discovery to be conducted utilizing a first radio technology, such as Bluetooth Low Energy (LE) technology, and to then handover to a second radio technology, e.g., a second radio technology having a greater bandwidth than the first radio technology. In the context of a method, device discovery is conducted utilizing a first radio technology. The method also causes communication of handover information in accordance with a predefined attribute protocol of the first radio technology. The method also performs handover to a second radio technology, such as Bluetooth technology or a wireless local area network technology, in accordance with the handover information communicated utilizing the first radio technology.
Policy and charging control method, servers and computer programs therefor
A policy and charging control method includes creating by a policy and charging rules function (PCRF), first policy and charging control (PCC) rules at establishment of a user plane session associated with the UE. The first PCC rules are installed at a policy and charging enforcement function (PCEF) and the service is initiated in accordance with these rules. During the lifetime of the user plane session, a quality-of-service (QoS) change request is transmitted by the UE upon activation of a user interface command. The PCRF creates second PCC rules based on the request, and installs them at the PCEF by replacing the first PCC rules by the second PCC rules. The service is continued in accordance with the second PCC rules. PCRF and PCEF servers as well as computer programs are also defined.
Integrated service provision system using smart terminals in hotel
The present invention is directed to an integrated service provision system using smart terminals in a hotel, including a plurality of smart terminals configured to be installed in respective hotel rooms, to each include a docking station and a smart pad, to be connected over an intranet and a wired/wireless network and provide hotel services in response to requests from the guests, to wirelessly control room conveniences, that are connected over a network, to enable reservations for performances, and ordering and payment for goods to be made via an Internet, to receive guidance on an escape route from disaster control means in real time when a disaster occurs by enabling locations of the smart terminals to be determined through connection to an access point and pairing with a Bluetooth receiver.
System and method for providing location information
A method includes presenting, at a called communication device, first location information corresponding to a first location of a caller communication device. The first location information is presented before an incoming communication is answered. The method also includes presenting, at the called communication device, second location information in response to the incoming communication being answered. The second location information corresponds to a second location of the called communication device.
System and method for offline voicemail deposit
Systems and methods for an offline voicemail recording system are provided. A voicemail server establishes a session with a caller responsive to detecting the unavailability of a callee. Session information is transmitted to the caller and the voicemail server then purposely terminates the session with the caller. The caller can record a voice or video message offline, without an active connection to the voicemail server, and later upload the recorded message. The voicemail server correlates the uploaded message with the previously terminated session and notifies the callee of the receipt of the message.
Evolved multimedia broadcast/multicast services (eMBMS) geo-location based group call
The disclosure generally relates to techniques that may be used to coordinate an evolved multimedia broadcast/multicast services (eMBMS) geo-location based group call. More particularly, an eMBMS bearer may be established to support a group call based on a mapping among eMBMS network components that service a geographic area selected by an originator associated with the group call (e.g., an area that the call originator defines according to latitude and longitude coordinates, a selected region on a map that displays available group members in the selected region, network identifications, etc.). The group call may then be initiated over the established eMBMS bearer using network group identifiers associated with the call originator and one or more group members present in the selected geographic area and unicast service with a dedicated link to group members located outside the selected geographic area may be established to include such group members in the group call.
Digital broadcasting system and data processing method
A method of processing broadcast data in a broadcast transmitting system includes Reed-Solomon (RS) encoding and Cyclic Redundancy Check encoding an RS frame payload including mobile service data to build an RS frame, wherein the RS frame payload comprises a plurality of mobile and handheld transport packets; first encoding data of the RS frame with a first encoding code; second encoding signaling data with a second encoding code, wherein the signaling data include fast information channel (FIC) data and transmission parameter channel (TPC) data, the FIC data including information for rapid mobile service acquisition and the TPC data including a parade identifier for identifying a parade to which a current data group belongs; mapping the first encoded data into data groups and adding known data sequences and the second encoded signaling data to each of the data groups; and transmitting a transmission frame including data of the data groups.
Sharing location information among devices
Methods, systems, apparatus, and computer program products that include, on a first device executing a first instance of a location application, receiving an indication to begin sharing data describing a path traveled by the first device, receiving location data describing the path traveled by the first device, the location data received from a location system of the first device, and the location data including a plurality of locations of the first device, and transmitting the location data in a form usable to enable a user interface of a second instance of a location application executing on a second device to indicate the path traveled by the first device.
Method for fine location of a mobile user equipment that is the recipient of an SMS in a telecommunication network implementing open-mode femtocells
The present invention relates to a mobile network (10) organized into a plurality of location areas and service areas gathering a geographically homogeneous set of cells of the mobile network, with gathering of the femtocells into specific additional service areas. The arrival of an SMS intended to a user equipment (14) coupled to a femtocell (30) triggers a location step, with communication to the switching center of a rough location comprising the service area codes SAC and location area codes LAC corresponding to the femtocell, and of a fine location comprising unique data, such as IP address and INSEE code, of identification of the Internet box (20) associated to the femtocell. The femtocells may hence operate in open mode, each femtocell being able to be coupled to any user equipment registered with the mobile network operator.
FEMTO cell visitation history for location based services
Collection and communication of data are provided on handset attachment procedure, or visitation, to one or more femto cells to provide location information. A mobility component receives actual subscriber and femto access point (AP) attachment signaling and extracts visitation data that facilitates generation of real-time or historical visitation reports. Location information is conveyed through visitation reports which can include mobile device identifier(s), femto AP location, and a timestamp. Visitation reports also can include processed visitation data such as mobility matrices, historical mobility patterns or profiles, and predicted mobility events. Provision of location information occurs without the need for dedicated handset functionality, and associated hardware, or additional battery draw.
Apparatus and method for generating, displaying and implementing a geo-fence using location determination of mobile devices within a location-based group
Method of generating, displaying, and implementing geo-fence using location determination of mobile devices (MHSDs) within location-based group starts with server receiving geo-fence information and generating geo-fence based on geo-fence information. Server receives location data and proximity information from MHSDs. Location data received from first MHSD includes first MHSD's location. Proximity information received from first MHSD includes identification of MHSDs within proximity sensitivity radius of first MHSD's location. Server forms subgroup of MHSDs based on proximity information from each MHSD. Subgroup include first MHSD and MHSDs that have provided proximity information that identifies first MHSD are being within proximity sensitivity radiuses of the MHSDs, respectively. Server refines the fixed location of the first MHSD, which includes identifying an intersection of the proximity sensor sensitivity of MHSDs that are in subgroup. Server generates and transmits alert to display device when refined location of first MHSD crosses the geo-fence. Other embodiments are described.
Provision of services over a common delivery platform such as a mobile telephony network
One embodiment of a system for providing services to subscribers of a network supports the provision of a plurality of different services to multiple subscribers. A first processing unit provides a first execution environment for a first set of software applications and a second processing unit provides a second execution environment for a second set of software applications. A data structure is provided for storing data associated with subscribers of the system, the data structure providing a common identity for association with a subscriber which is recognized by all processing units of the system. This provides a common user repository which simplifies the provision of services and the authentication processes within the system.
Enhanced system and method for custom programming of large groups of phones without requiring additional equipment
A system and method for custom programming of mobile computing devices. The system and method include receiving, by a server computer and before activation of a mobile computing device by a user, a code from the mobile computing device over a wireless data connection; and in response to the receiving of the code, transmitting, by the server computer to the mobile computing device over the wireless data connection, a software module, the software module for execution on the mobile computing device and for installing software on the mobile computing device in response to the execution.
Controlling acoustic echo cancellation while handling a wireless microphone
An audio system has a base station, a speaker and one or more wireless microphones. The audio system operates to receive audio information from both a far-end audio source and a near-end audio source and to process the audio information for transmission to a far-end audio system. The wireless microphones have an electrically conductive element connected to a touch sensitive switch, and the electrically conductive element is proximate to an outer perimeter surface of the microphones. When the outer perimeter surface of the microphone is touched, the switch is activated which sends a microphone handling signal to the base station. The base station uses the microphone handling signal to control an operational characteristic of an audio signal processing function running on the base station.
Method and device for personalized hearing
An electronic audio device for use with at least one earpiece, the earpiece having a microphone and a speaker located therein includes circuitry coupled to the microphone and speaker and a processor to evaluate a seal quality of the earpiece to a user's ear based on seal quality measurements made while driving or exciting a signal into the speaker located in the earpiece and then to adjust the circuitry operatively coupled to the microphone and speaker according to the evaluated seal quality. Other embodiments are disclosed.
Parallel antennas for standard fit hearing assistance devices
An embodiment of a hearing assistance device comprises a housing, a power source, a radio circuit, an antenna and a transmission line. The radio circuit is within the housing and electrically connected to the power source. The antenna has an aperture, and the radio circuit is at least substantially within the aperture. The transmission line electrically connects to the antenna to the radio circuit. Various antenna embodiments include a flex circuit antenna.
Electrostatic loudspeaker capable of dispersing sound both horizontally and vertically
An electrostatic loudspeaker (ESL) assembly providing curvature in two directions for improved dispersion of sound waves. The ESL comprises at least one stator panel, a flexible diaphragm and a spacer that impedes contact between the stator panel and the diaphragm. The stator is formed from a material that comprises an array of apertures. Furthermore, the material can be annealed. The material temper, along with the aperture geometry and patter, affect the stretchability of the material. The two-axis curved structure enables a compact form of ESL to be realized, including bookshelf type loudspeakers whereas all known commercial units are comparable in height to that of a human listener. The individual curved ESL panels can also be readily combined to create larger transducer assemblies including omni-directional units.
A miniature speaker is disclosed. The miniature speaker includes a frame, a magnetic circuit received in the frame, a voice coil partially received in the magnetic circuit, a diaphragm connected to the voice coil, and a contact fixed by the frame for electrically connecting the voice coil to an external circuit. The contact includes an elastic arm, and a latch located at a position between two ends of the elastic arm. Corresponding to the latch, the frame includes a protrusion engaging with the latch for restricting the upward movement of the elastic arm.
Ease-of-use wireless speakers
One embodiment of the invention is directed to a speaker system comprising a first speaker apparatus comprising a housing, speaker components positioned substantially inside the housing and at least one first speaker apparatus charging member, wherein the speaker components include a power source, and a second speaker apparatus comprising a housing, speaker components positioned substantially inside the housing and at least one second speaker apparatus charging member. The first speaker apparatus and the second speaker apparatus are configured to each provide a different component of reproduced sound at the same time. The second speaker apparatus is configured to recharge the power source of the first speaker apparatus.
Sound capture system
A sound capture system is disclosed that includes an open-sphere microphone array where at least four omnidirectional microphones providing at least four output signals are disposed around a point of symmetry and an evaluation circuit that is connected to the at least four microphones disposed around the point of symmetry and that is configured to superimpose the output signal of each of the at least four microphones disposed around the point of symmetry with the output signal of one of the other microphones to form at least four differential microphone constellations providing at least four output signals, each differential microphone constellation having an axis along which it exhibits maximum sensitivity.
Image capturing apparatus, signal processing apparatus and method
A signal processing apparatus reduces noise by generating an interpolated signal for a noise-containing period using audio signals in periods before and after the noise-containing period, and replacing an audio signal in the noise-containing period with the interpolated signal. Here, the signal processing apparatus determines whether a phoneme is the same or different between before and after the noise-containing period, and controls a method for generating the interpolated signal in accordance with a result of the determination.
Displaying advertising in an electronic program guide
Program cells of an electronic guide may be generated on a display device in an electronic device. An advertisement cell may be moved based on movement of the program cells. The advertisement cell may be kept stationary when the program cells scroll.
Processing and apparatus for advertising component placement utilizing an online catalog
A method of presenting advertising opportunities to users of a digital advertising placement system is described. The method includes receiving sequences of video material from a video material source, the sequences of video material having been processed from original video material to select parts of the original video material which are suitable for placement of digital advertising components. The method further includes incorporating the received sequences of video material into an online catalog accessible to a plurality of users via a data communications network, the online catalog allowing remote access to a user to identify one or more sequences which are of interest to an advertiser wishing to conduct digital advertising placement using said system.
Television receiver, method of controlling the receiver, and network construction device
According to one embodiment, the present invention is designed to automatically determine the language of the content distributed when connecting to the Web server so as to agree with the language configured at the initial setup. The present invention has following elements. An initial setup module maintains initial setup information that indicates at least a menu language. A setup information association process module which determines a language request signal to request a language the same as the menu language indicated in the initial setup information. And a network control module which accesses the World Wide Web while transmitting the language request signal to determine a browser language.
Methods and apparatus to discriminate between linear and non-linear media
Methods and apparatus to discriminate between linear and non-linear media are disclosed An example method to determine whether a media presentation is a linear or a non-linear media presentation comprises generating a reference log comprising a first media identifier of first media and a time at which the first media was presented, accessing a media presentation log comprising a second media identifier of second media and a time at which the second media was presented, and determining whether the second media correspond to a linear media presentation or a non-linear media presentation by comparing the media presentation log to the reference log.
Simulation method and system
A simulation method and system. A computing system receives a first audio and/or video data stream. The first audio and/or video data stream includes data associated with a first person. The computing system monitors the first audio and/or video data stream. The computing system identifies emotional attributes comprised by the first audio and/or video data stream. The computing system generates a second audio and/or video data stream associated with the first audio and/or video data stream. The second audio and/or video data stream includes the data without the emotional attributes. The computing system stores the second audio and/or video data stream.
Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
A virtual channel table for broadcasting protocol and a method for broadcasting by using the virtual channel table includes identification information identifying and permitting discrimination of active and inactive channels contained in the virtual channel table. At a receiver, the virtual channel table transmitted from the transmitting side is parsed, thereby determining whether the current received channel is an active or inactive channel.
Methods, systems and computer program products for providing a media file to a designated set-top box
Methods of providing a media file include receiving the media file and an identification of a destination set-top box for the media file at a server device. The received media file is transmitted from the server device to the identified set-top box in an Internet protocol television (IPTV) multimedia format.
Gesture control based on prosthetic nerve signal detection
Methods and systems are disclosed herein for a media guidance application which may control a user device, which may receive a radio-frequency signal from a user device, corresponding to an electromyography signature received from a user. The media guidance application may also cross-reference the electromyography signature with first and second databases to determine an attempted user motion and a media guidance application operation corresponding to the electromyography signature. In response to determining the media guidance application operation to be performed, the media guidance application may perform said media guidance application operation on the user device.
Intelligent remote control
A content access device and system may allow portable remote devices to be paired with a variety of different devices, allowing remote control through a network connection. Content access devices may expose application program interfaces, allowing incoming network traffic to control operation of the device much in the same way that a local infrared remote would. Routing content commands through an external application server may also yield other benefits, such as allowing more customized selection of information and advertising content to users based on their viewing history.
System and method for controlling a mirror link of a multimedia system and portable terminal
A system and method of controlling a mirror link are provided. The method includes connecting, by a controller, a multimedia system mounted within a vehicle to a portable terminal and executing an application to perform the mirror link. In addition, a menu is output to independently control an output image of the multimedia system and the portable terminal to the vehicle. The controller is also configured to independently control the output image of the multimedia system and the portable terminal based on a user selection.
Dynamic rebroadcast scheduling of videos
Some embodiments include a method for managing rebroadcast of a previously broadcast video. The method includes a computer determining popularity of the previously broadcast video based, at least in part, on a number of requests to rebroadcast the previously broadcast video. The method includes the computer determining a popularity threshold based in part on demographics of viewers sending the number of requests to rebroadcast the previously broadcast video. The method includes the computer determining that the popularity of the previously broadcast video exceeds the popularity threshold, and in response, the computer determining a day of week and time of day to rebroadcast the previously broadcast video based in part on days of the week and times of day in which the requests were sent.
Information distribution device and method, and information distribution system
[Object] To improve efficiency of information distribution.[Solution] A broadcast resource management server 12 obtains frequency usage state information from WSDBs 21-1 through 21-N when content to be distributed is provided, evaluates, based on the obtained frequency usage state information a distribution time slot to distribute content and a distribution frequency band to use for the distribution, notifies TVBDs 31-1 through 31-M of a distribution schedule so as to be in state capable of reception of the content to be distributed using the distribution frequency band in a distribution time slot, and the broadcast server 11 uses, when a distribution time slot arrives, the distribution frequency band to distribute the content to the TVBDs 31-1 through 31-M in a receivable state in accordance with the distribution schedule. The present invention can be applied to a content distribution system to perform distribution of the content.
Enhanced live multibitrate video encoding
Multibitrate (MBR) live video broadcasting is disclosed in which live video input is copied into a plurality of streams each designated for encoding into a different bitrate. The MBR broadcasting operation is made efficient by performing pre-quantization calculations only the first of the plurality of streams. The results of those calculations are then merely copied to the other streams. Quantization and encoding processes may then be applied to each of the streams to process the streams into their respective, predetermined bitrates.
Method, cryptographic system and security module for descrambling content packets of a digital transport stream
A method and cryptographic system for descrambling content packets, included within a digital transport stream, having conditional access messages and header data. The method and system require a deciphering algorithm, processed by a descrambler of a multimedia unit, using an initialization vector as a first input and a control word as a second input. The multimedia unit is connectable to a security module for processing the conditional access messages and extracting control words therefrom. The initialization vector, or intermediate data to determine the initialization vector, is the result of a cryptographic function based on at least one variable extracted from the digital transport stream and processed by the security module.
Coordination of video and/or audio recording
Approaches described herein provide coordination of audio and/or video recording to minimize any gaps in coverage. In one approach, users of a distributed set of recording devices are invited to join a community with other similar users via a networked application in a loosely collaborative way. The recording coordination application substantially continuously monitors the state of the recording activities and coordinates the community of users to reduce any gaps in coverage.
Image processing system with artifact reduction mechanism and method of operation thereof
An image processing system, and a method of operation thereof, including: a capture device for obtaining a base input image; and an image signal processing hardware including: a pre-processing module for: partitioning the base input image into base image blocks, generating an input image block based on the base image blocks, inverting the input image block associated with some of the positions within the base input image; a wavelet transform module for generating a transformed image block based on the input image block; a coding module for generating a scaled wavelet block based on the transformed image block, the coding module for generating a compressed image block based on the scaled wavelet block; and a decoding module and an inverse wavelet transform module for generating an output image block by decoding and performing an inverse wavelet transform on the compressed image block for display on a display device.
Adaptive transform method based on in-screen prediction and apparatus using the method
Disclosed is an adaptive transform method based on an in-screen prediction, and an apparatus using the method. A method for encoding an image can comprise a step of determining in-screen prediction mode groups, and a step of transforming by using a different transform method according to the in-screen prediction mode group. As a result, transforming can be performed by applying the different transform method according to the in-screen prediction mode group.
Method and apparatus for coefficient scan based on partition mode of prediction unit
Provided are a method and an apparatus for coefficient scan on the base of a partition mode of a prediction unit. The method comprises the steps of: determining a scan method on the basis of a partition mode of a prediction unit; and encoding the information about the scan method, wherein the scan method is determined, on the basis of RDO (Rate Distortion optimization), from among the extracted candidate scan methods which have been extracted with consideration of the shapes of the partitions of the partition mode.
Image information encoding and decoding method
The present invention relates to an image information encoding and decoding method and a device for same. One embodiment of an image information encoding method according to the present invention, as an image information encoding method according to another embodiment of the present invention, includes the steps of: generating a restore block; applying a deblocking filter on the restore block; applying a Sample Adaptive Offset (SAO) on the restore block having the deblocking filter applied thereon; and transmitting information on the SAO application. During the applying of the SAO, the SAO is applied to chroma pixels, and during the transmitting of the information, in addition to information on whether the SAO is applied on the chroma pixels, at least one of area information, division information on the SAO coverage area, SAO type information, and SAO offset information is transmitted.
Chroma quantization in video coding
A method of signaling additional chroma QP offset values that are specific to quantization groups is provided, in which each quantization group explicitly specifies its own set of chroma QP offset values. Alternatively, a table of possible sets of chroma QP offset values is specified in the header area of the picture, and each quantization group uses an index to select an entry from the table for determining its own set of chroma QP offset values. The quantization group specific chroma QP offset values are then used to determine the chroma QP values for blocks within the quantization group in addition to chroma QP offset values already specified for higher levels of the video coding hierarchy.
Video encoder with intra-prediction pre-processing and methods for use therewith
An intra-prediction module includes an intra-prediction preprocessor configured to process pixel data from blocks of picture data to determine edge strength data and edge angle range data corresponding to a plurality of pixels of the blocks, and further to generate intra-prediction candidate data based on the edge strength data and the edge angle range data. The intra-prediction candidate data indicates a first subset selected from a plurality of intra-prediction partitions and a second subset selected from a plurality of intra-prediction modes. A rate distortion optimization processor determines final intra-prediction data, based on the intra-prediction candidate data.
Self test of image signal chain while running in streaming mode
An imager including a self test mode. The imager includes a pixel array for providing multiple pixel output signals via multiple columns; and a test switch for (a) receiving a test signal from a test generator and (b) disconnecting a pixel output signal from a column of the pixel array. The test switch provides the test signal to the column of the pixel array. The test signal includes a test voltage that replaces the pixel output signal. The test signal is digitized by an analog-to-digital converter (ADC) and provided to a processor. The processor compares the digitized test signal to an expected pixel output signal. The processor also interpolates the output signal from a corresponding pixel using adjacent pixels, when the test switch disconnects the pixel output signal from the column of the pixel array.
Determining depth data for a captured image
A method, system, and one or more computer-readable storage media for depth acquisition from density modulated binary patterns are provided herein. The method includes capturing a number of images for a scene using an IR camera and a number of IR lasers including diffraction grates. Each image includes a density modulated binary pattern carrying phase information. The method also includes performing pixel based phase matching for the images to determine depth data for the scene based on the phase information carried by the density modulated binary patterns.
3-dimensional videos of objects
A plurality of cameras capture images of an object from different viewpoints. The images from each of the cameras are used to generate a 3D video of the object. The 3D video is provided to a user for viewing the object. The user may switching between different viewpoints of the 3D video while viewing the 3D video. A media viewer may be provided to a user and the media viewer may allow the user to specify different viewpoints and to control playback of the 3D video.
Apparatus for extracting image object in 3D image system and method thereof
Disclosed are an apparatus for extracting an image object in a 3D image system and a method thereof.The apparatus for extracting an image object in a 3D image system includes: an image inputting unit receiving an image; a space setting unit setting virtual space at which the image object is positioned from the received image; and an object extracting unit extracting the image object from the set virtual space from the received image.
Method and system for disparity adjustment during stereoscopic zoom
A method for zooming a stereoscopic image appearing on an electronic display of a stereoscopic image displaying device. The stereoscopic image has horizontal disparity and is generated by an electronic processor from stereoscopic image data stored in a memory as a left-eye image pixel map and a right-eye image pixel map. The horizontal disparity of the stereoscopic image data is adjusted to produce disparity-adjusted, scaled stereoscopic image data based on a heuristic defining a relationship between a user zoom request, a predetermined stereoscopic factor and a relative horizontal shift between the left-eye image pixel map and the right-eye image pixel map. A zoomed stereoscopic image corresponding to the disparity-adjusted, scaled stereoscopic image data is displayed.
Video conversion device, photography system of video system employing same, video conversion method, and recording medium of video conversion program
A video conversion unit comprises: a unit which acquires a camera video data signal; a first color conversion unit which converts the camera video data signal to a photography scene reference color space and derives first video data; a lock modification section which carries out a lock modification on the first video data; a second color conversion unit which converts the post-color conversion video data to a video output reference color space and derives second video data; and a third color space conversion unit which converts the second video data to a color space of a verification display device and derives third video data in order to pre-verify a device color which is obtained when converting to a color space of a final video output device with a different display device.
Display device, brightness adjustment device, method of adjusting brightness, and program
Provided is a display device including a setting condition acquisition unit for obtaining various conditions for adjusting a gain of a video-signal, a current-brightness table calculation unit that calculates a table representing a relationship between an average brightness and a gain of a video-signal, and that calculates the table capable of setting a peak-brightness and power consumption of the video-signal independently, based on the various conditions acquired by the setting condition acquisition unit, a video-average brightness conversion block that calculates average-brightness of the video-signal input for each frame, a current-brightness control table that calculates a gain of the video-signal from the table based on the average-brightness calculated above, a video gain block that adjusts the video-signal using the gain calculated above, and a display panel that includes a plurality of pixels that emit light in response to a video-signal and displays a video based on the video-signal adjusted above.
Rotation of a micro-mirror device in a projection and camera system
A device includes a projector to project an image onto a surface. The projector includes a micro-mirror device comprising an array of micro-mirrors. Light from a light source is reflected by one or more of the array of micro-mirrors, to project the image onto the surface. In one implementation, the micro-mirror device is rotated to correspondingly rotate the projected image on the surface. In one implementation, the device is housed in a table lamp.
Image sensor and image sensing apparatus with plural vertical output lines
An image sensor comprises: a pixel unit array; a driving unit; a second holding block; a first output amplifier; and a second output amplifier, each column of the pixel unit array including a plurality of first pixel units and a plurality of second pixel units, wherein the driving unit drives the pixel unit array to parallel-perform, on each column of the pixel unit array, an operation to transfer signals from the first pixel units to the first holding block via the first vertical output line, and an operation to transfer signals from the second pixel units to the second holding block via the second vertical output line.
Pixel interpolation apparatus, image capture apparatus, storage medium, and integrated circuit
An image capture apparatus 1000 includes an image capture unit C1, a signal processor unit C2, and a pixel interpolation unit 100. In the image capture apparatus 1000, with respect to an image signal captured by the image capture unit C1 which includes a single image sensor having three-color filters in arbitrary colors, a plurality of pairs of correlation degrees of two directions which are perpendicular to each other are obtained using image data of pixels provided around an observed pixel, and a pixel interpolation process is carried out using the correlation degrees as a reference for determination. Then, in the image capture apparatus 1000, even if a color component pixel in the same color as a color component pixel on which the pixel interpolation process is to be carried out is not provided in a direction where there is strong correlation, a rate of change in a direction perpendicular to the direction where there is strong correlation is obtained using a pixel value which is obtained though color space conversion in the direction perpendicular to the direction where there is strong correlation. Thus, a pixel interpolation process is carried out based on the obtained rate of change.
Spectral improvement of digital camera color images
Systems and methods for modifying a color image of a scene are provided. The systems and methods involve illuminating at least a portion of the scene with a light having a known spectral power distribution, and detecting a finite number of spectral components of light received from the scene under such illumination. The detected values of spectral components of light received from the scene are used to modify the color image or rendition of the scene.
System and method of security monitoring
A system and method of security monitoring is disclosed. In a particular embodiment, a method includes determining a channel of a television system associated with video content from a security camera. In a particular embodiment, a method includes sending a first alert to a display device and sending a second alert to a remote control device.
Flexible linkage camera system and method for visual inspection of off line industrial gas turbines and other power generation machinery
Internal components of power generation machinery, including for example gas or steam industrial turbines as well as generators, are inspected a camera inspection system that is inserted and positioned within the machinery by an elongated cable carrier that has restricted cable flexure along a two-dimensional carrier cable flexure motion plane. A camera head that retains the camera is coupled to a distal end of the cable carrier. Embodiments also include a connector block coupled between the cable carrier distal end and the camera head. The connector block has a pivot axis coupled to the camera head for swinging the camera head along a camera head range of motion path that intersects the cable carrier flexure motion plane. Embodiments include a camera head swing motion drive system for selectively positioning the camera head along the camera head range of motion path.
Image transmission system and image transmission method
Disclosed herein is an image transmission system including a plurality of cameras and a coaxial cable for transmitting image signals from the cameras, wherein: each of the cameras includes an imaging block configured to acquire an image signal by imaging an object, a coding block configured to compression-code the image signal through intra-frame compression and inter-frame compression so as to generate a coded signal, and a signal output block configured to output the coded signal onto the coaxial cable; and the camera of interest outputs the coded signal obtained through inter-frame compression onto the coaxial cable when another of the cameras outputs the coded signal obtained through intra-frame compression onto the coaxial cable.
Video surveillance system
A video surveillance system wherein a monitoring station collects video data obtained by a monitoring camera is disclosed. The system includes a multihop wireless network formed of a plurality of wireless nodes including a first wireless node having the monitoring camera, and a second wireless node having a gateway connected to the monitoring station. The system also includes a priority control device configured to control the wireless network so that transmission in a link between the first wireless node and the second wireless node is performed at a priority level contained in a priority information message. The transmission including transmitting a video data request from the monitoring station to the monitoring camera, or transmitting video data from the monitoring camera to the monitoring station.
Method and apparatus for distributing merchant advertisements
A system that incorporates teachings of the present disclosure may include, for example, an Internet Protocol Television (IPTV) system having a controller to present a merchant a graphical user interface (GUI) for entering advertisement information, receive from the merchant advertisement information, generate an advertisement GUI for presenting the received advertisement information, identify a plurality of users of the IPTV system that demographically correlate to the advertisement information, and direct the advertisement GUI to one or more set-top boxes of the identified plurality of users. Other embodiments are disclosed.
System and method for creation and management of advertising inventory using metadata
The invention is directed to a system and method for the creation and management of advertising inventory utilizing associated metadata. The system generally includes a media streaming system that is used with a video player in connection with the playback of at least one audio/video work. The media streaming system includes a media distribution system that supplies metadata associated with the audio/video work to the video player. The metadata has a hierarchical taxonomy that defines a plurality of attributes associated with one or more objects present in the audio/video work. The system also includes an ad inventory engine that determines available ad inventory based on the metadata and matches the available inventory with advertisement data based on the hierarchical taxonomy.
Dynamic adaption of a continuous presence videoconferencing layout based on video content
Dynamically adapting a continuous presence (CP) layout in a videoconference enhances a videoconferencing experience by providing optimum visibility to regions of interest within the CP layout and ignoring regions of no interest. Based on the CP layout, a CP video image can be built, in which a conferee at a receiving endpoint can observe, simultaneously, several other participants' sites in the conference. For example, more screen space within the CP layout is devoted to presenting the participants in the conference and little or no screen space is used to present an empty seat, an empty room, or an unused portion of a room. Aspect ratios of segments of the CP layout (e.g., landscape vs. portrait) can be adjusted to optimally present the regions of interest. The CP layout can be adjusted as regions of interest change depending on the dynamics of the video conference.
Optimized telepresence using mobile device gestures
Telepresence of a mobile user (MU) utilizing a mobile device (MD) and remote users who are participating in a telepresence session is optimized. The MD receives video of a first remote user (FRU). Whenever the MU gestures with the MD using a first motion, video of the FRU is displayed. The MD can also receive video and audio of the FRU and a second remote user (SRU), display a workspace, and reproduce the audio of the FRU and SRU in a default manner. Whenever the MU gestures with the MD using the first motion, video of the FRU is displayed and audio of the FRU and SRU is reproduced in a manner that accentuates the FRU. Whenever the MU gestures with the MD using a second motion, video of the SRU is displayed and audio of the FRU and SRU is reproduced in a manner that accentuates the SRU.
Method, device, and system for reducing bandwidth usage during a communication session
A communication system, method and communication terminal are configured to permit bandwidth reduction when communication partners are engaged in a communication session. In one embodiment, a communication terminal such as a cellular phone or tablet may turn off at least one of its display and camera sensor within a predetermined amount of time when the terminal is detected as being positioned near a user's ear via at least one sensor of the terminal. In some embodiments, the communication terminal may also transmit one or more messages to communication devices of communication partners engaged in the communication session to inform those devices that video transmissions should no longer be sent to the communication terminal. The communication terminal and other communication devices involved in the communication session may also stop transmitting video as a result of the detection of the communication terminal being positioned near a user's ear.
System and method to enable layered video messaging
A method includes selecting, at a first computing device, a first content source as a foreground content source and a second content source as a background content source. The method includes determining a location of the first computing device. The method also includes generating layered multimedia content. The layered multimedia content includes a foreground layer including first media content received from the first content source, a background layer including second media content received from the second content source, an information layer including data associated with the location to the first computing device, and audio content. The method includes sending the layered multimedia content to at least a second computing device.
Method and system for controlling an imaging system
First image data representing a first view, captured by a camera system, of a second location, is displayed at the first location. The first view is associated with a first orientation relative to the second location. A first angular displacement associated with a motion of a chair disposed at the first location is determined. Information representing the first angular displacement is transmitted to the camera system. Second image data representing a second view of the second location associated with a second orientation is displayed at the first location, the second orientation having a relationship to the first orientation based on the first angular displacement.
User equipment and methods for adapting system parameters based on extended paging cycles
Embodiments of wireless communication devices and method for discontinuous reception (DRX) mode in wireless communication are generally described herein. Some of these embodiments describe a wireless communication device having processing circuitry arranged to determine to use an extended paging discontinuous reception (DRX) value to increase a paging cycle length above a value and select a first periodicity, based on the extended paging DRX value, at which the UE is to perform evaluation of a parameter of a network in which the UE is opera. The wireless communication device may have physical layer circuitry arranged to transmit a message to the network, indicating that the UE desires to perform evaluation of the parameter at the first periodicity. Other methods and apparatuses are also described.
Image comparison device using personal video recorder and method using the same
The present disclosure relates to an image comparison device using a personal video recorder, the device comprising: a display unit configured to output a reference image; at least one camera configured to obtain a comparison image by taking a picture of a present scene of a subject chasing a movement of an object included in the reference image while the reference image is displayed on the screen of the display unit; and a controller configured to display the comparison image along with the reference image on the screen, and a method using the image comparison device.
Imaging device, image processing device, imaging method, image processing method, and computer program product
An imaging device includes: an imaging unit that images an event and generates imaged data of the event; a storage unit that stores the imaged data of the event as a plurality of moving image files; a marker input unit that inputs at least a start marker representing a start of the event and an end marker representing an end of the event; and a control unit that causes marker data including the input start marker and end marker to be stored in the storage unit as a plurality of marker data files in association with the plurality of moving image files.
A television may include a main body, an additional electronic unit installed at an outside of the main body, at least one port allowing which is configured to connect a connector of a cable for communication with the an additional external electronic unit to the main body be connected thereto; and at least one heat transfer member to receive which is configured to receive and transfer heat transferred from the at least one port.
System and method for ubiquitous appliance control
A slave relay station is adapted to serve and/or host pages comprising a simplified graphic user interface (GUI) encoded in a widely recognized format such as, for example, HTML or WML. The GUI embodies activatable links corresponding to control functions for configured appliances. A wireless phone or other device with network access and the capability to process and present such pages, for example via a Web browser, may then be utilized to effect control of such appliances by simply navigating to the network address of the slave relay station, obtaining an appropriate GUI page, and interacting with the links.
Image capturing apparatus and image capturing method
An image capturing apparatus includes an input unit, a detecting unit, and a controller. The input unit continuously inputs a signal sequence. The signal sequence includes values of multiple pixels and control information. The pixels constitute an image. The control information is embedded at multiple positions according to a rule. The detecting unit detects occurrence of an error on the basis of the inputted control information. The controller interrupts the input performed by the input unit when the detected error is based on the control information embedded in a first region of the image, and continues the input when the detected error is based on the control information embedded in a second region.
Solid-state image pickup apparatus
A solid-state image pickup apparatus includes: two-dimensionally arrayed unit pixels, each including a PD performing optical-electrical conversion of an incident light; an FD and an output terminal provided for each of pixel groups, each including one or more pixels, the terminal being capable of outputting a noise signal and a signal-noise sum signal separately; first lines to which the terminals are connected in common and which are capable of holding voltages based on signals outputted from the terminals; second lines provided in parallel with the first lines and capable of holding a voltage; inter-transfer-line capacitive elements connecting the second lines and the first lines; a reset switch resetting each of the second lines to a reset voltage; a readout switch provided for each of the second lines; and a third line to which the second lines are connected in parallel via the readout switches, respectively.
Imaging apparatus and camera system
An imaging apparatus that forms an image of a light beam transmitted through an imaging lens on an imaging element includes a laminated material that is provided on the imaging element, the light beam being transmitted through the laminated material, the laminated material being provided at a position at which an end portion of an upper surface of the laminated material allows an outermost light beam out of light beams to be transmitted therethrough, the light beams entering a pixel in an outer end portion of the imaging element in an effective pixel area, the position having a width Hopt.
Solid-state imaging device having a counting unit and a comparison unit with switchable frequency band characteristics and imaging apparatus having the same
A solid-state imaging device includes the following. Pixels arranged in matrix converts received light into signal voltage. A column AD conversion unit, which includes a comparison unit and an up-down counting unit, converts signal voltage to digital signal. The comparison unit compares a value of signal voltage to a gradually changing value of reference signal voltage. The up-down counting unit counts, by one of down-counting and up-counting, a time period until the comparison result is reversed if the signal voltage is of a base signal component of each pixel at reset level, and counts, by an other of down-counting and up-counting, the time period if the signal voltage is of a superimposed signal component in which the base signal component is superimposed on a pixel signal component corresponding to an amount of light received by the pixel. The comparison unit has switchable kinds of frequency band characteristics.
Method of correcting saturated pixel data and method of processing image data using the same
Methods of correcting saturated pixel data in an image sensor are provided. A method of correcting saturated pixel data in an image sensor includes determining a weight function. The weight function indicates a correlation between color values of saturated pixels and color values of neighboring pixels. The saturated pixels are among a plurality of pixels which have a color value greater than a saturation threshold value. The neighboring pixels are among the plurality of pixels that are proximate to each of the saturated pixels. The method includes determining weight values of a neighboring pixels that are proximate to a first saturated pixel using the weight function. The method includes determining a weighted average value of the color values of each of the neighboring pixels using the weight values. The method includes correcting the color value of the first saturated pixel to the weighted average value.
Image capture apparatus and image capture method
An image capture apparatus generates synchronous detection images under different exposure conditions in such a way that each synchronous detection image is obtained by subtracting the output values of an image captured with no light projected from the output values of an image captured with light projected, selects one or more pixels from the rest of the pixels at each position of the two or more synchronous detection images under the different exposure conditions excluding the pixel having the lowest output value, and generates a synchronous detection image by using the selected pixels.
Real-time perspective correction
A system and method for correcting the perspective of visual data in real-time is disclosed. A electronic device accesses live visual data through a camera associated with an electronic device. The electronic device displays the live visual data on a display associated with the electronic device. The electronic device detects tilt data from a sensor associated with the electronic device, wherein tilt data indicates that the electronic device has tilted from an original angle to a current angle. In response to detecting tilt data from the sensor associated with the electronic device, the electronic devices alters the displayed live visual data to correct a live perspective of a live video feed.
Display control apparatus and control method for display control apparatus
A display control apparatus performs control so as to enlarge and display a portion of an image in response to a TELE operation performed while the entire image is being normally displayed, and performs control so as to change an enlargement area of the image to an area corresponding to an in-focus position within an area of the image in response to a press of a set button while the image is being enlarged and displayed. The set button has a function of displaying a FUNK menu when the set button is pressed while the entire image is being normally displayed.
Image stabilization control apparatus and imaging apparatus with correction value based on outputs of first and second vibration detection units
An image stabilization control apparatus including a mechanism which causes a vibration when the mechanism moves is disclosed. The apparatus comprises a vibration correction unit configured to correct image shake occurring due to vibration applied to the image stabilization control apparatus. A correction value of an angular velocity of the vibration is calculated based on signals based on the angular velocity and an acceleration of the vibration, frequency bands of the signals are narrowed. During the mechanism is moving, the image shake is corrected by driving the vibration correction unit based on the angular velocity of the vibration which is corrected by the corrected value calculated before the mechanism moves.
A communication method is used in a terminal having a front camera as a first image capturing unit and a back camera as a second image capturing unit. The communication method includes: switching between the front camera and the back camera according to an orientation of the terminal; and performing visible light communication by using the front camera or the back camera which is selected.
Image display apparatus that displays a menu corresponding to an object, image display method that displays a menu corresponding to an object, and storage medium thereof
An image display apparatus configured to recognize one or more objects from an image, determine a display priority of a menu to be displayed relating to a recognized object based on a set display mode, and displaying menus corresponding to one or more recognized objects based on the determined display priority.
Depth map generation and post-capture focusing
Aspects of depth map generation and post capture focusing and re-focusing are described. According to one embodiment, a depth map is generated. The depth map may include a mapping among relative depth values in a field of view of an image based on a difference between pixels of a first image and pixels of a second image. An edge map may also be generated by identifying edges in at least one of the first image or the second image. Using the depth map and the edge map, the relative depth values in the depth map may be smoothed using the edge map. In this manner, certain discontinuities in depth values may be smoothed within edge-bounded regions defined by the edge map. The depth map may be used for focusing and re-focusing, for example, or for object extraction, scene understanding, or gesture recognition, among other imaging processes.
High-resolution image generation method
The present invention provides a high-resolution image generation method which is capable of generating a high-resolution image from multiple low-resolution images having displacements without using an iterative computation.A high-resolution image generation method for generating a high-resolution image from multiple low-resolution images having displacements, comprises a first step of performing a registration processing of multiple low-resolution images; a second step of generating an average image having the undefined pixels and a weighted image based on the displacement information obtained by the registration processing and multiple low-resolution images; and a third step of generating the high-resolution image by estimating pixel values of the undefined pixels included in the average image.
Technique of relaying communication between image forming apparatus and server
A relay device that relays communication between an MFP and a server reads, upon accepting a request from the MFP to the server, a response to a previous one of this request from the server which has been cached in a memory. Then, the relay device transmits the response read from the memory to the MFP as a formal response prior to transmitting this request to the server and obtaining a response.
Image forming apparatus, operation control method for the same, and recording medium
An image forming apparatus being capable of executing a plurality of functions comprises: an entry portion which allows a user to issue a request for using any one of the functions and enter user authority information; a display portion; an authenticator which: requires user authentication via a user authentication screen displayed on the display portion; and judges whether or not the user authority information entered via the entry portion is appropriate for an authorized user for the function; and a function execution controller which executes the function as requested, if the authenticator judges that the user authority information entered via the entry portion is appropriate for an authorized user for the function, wherein the authenticator resets the result of the user authentication if the function execution controller successfully finishes executing the function.
Information processing system, information processing apparatus, information processing method, and computer-readable storage medium
An information processing system includes a main body that executes a plurality of functions; and an operation unit including a display unit to display a screen. The system also includes a first display controller that arranges, for each of the functions, a first display component in a home screen corresponding to the screen displayed on the display unit immediately after activation, the first display component being used to instruct an execution command for the each of the functions; and an execution controller that controls, when the first display component is pressed, the main body to perform a function corresponding to the pressed first display component.
Mobile terminal and computer-readable recording medium for a mobile terminal using near field wireless communication to transmit a scan command to a scanning device
A non-transitory computer-readable recording medium for a mobile terminal configured to communicate with first and second scanning devices which exist within a communicatable range of an NFC (near field wireless communication), the recording medium storing instructions which cause the mobile device to, when the NFC is established between the mobile terminal and a particular scanning device, which is one of the first and second scanning devices, transmit to the particular scanning device a scan command to instruct to generate scan data, execute a determination process to determine which of the first and second scanning devices is the particular scanning device, and only when the first scanning device is the particular scanning device, execute a first process to store the scan data in a first storage server which corresponds to the first scanning device, the scan data being generated in the particular scanner device based on the scan command.
Limiting contact in a networked contact center environment
This document discusses, among other things, limiting contact to a networked contact center that is a host to multiple tenants. In an example embodiment, a communication is received by a networked contact center. In determining whether to allow the communication to reach contact center resources, a contact rate value may be examined. The contact rate value may represent an allowable quantity of contact within a time interval. For some example embodiments, a determination of whether the network contact center is to accept or reject the communication is made based on the contact rate value.
Communication between users of a telephone system
Each user of a telecommunications system may speak and record their own name, in their own voice, and a recording of their spoken name may subsequently be accessed by or delivered to other users of the system, thereby facilitating communication between users by enabling users to better know how to pronounce the names of other users. A user may listen to the recorded spoken name of another user before placing a call to another user. When a user joins a conference call, their spoken name may be announced to other users (attendees) already in the call. A user joining a conference call may listen to the recorded spoken names of attendees in the call. A button on users' phones may invoke these features.
Virtual mobile management—remote control
Disclosed is a Virtual Mobile Management apparatus and method using a control center system operable to enable remote control of wireless handheld devices based upon the establishment of dedicated communication channels with the wireless device and employing communication protocols to facilitate display capture, key and touch input simulation, and collect device parameters to analyze and compare with pre-defined parameters and generate a standards deviation report viewable by an authorized user. A device client is resident on the mobile device non-volatile memory and is operable by the end user to invoke the application to request remote control feature.
Customer relationship management (CRM) audio on hold
Embodiments of the present invention provide a method, system and computer program product for CRM audio on hold. In an embodiment of the invention, a CRM audio on hold method includes identifying a caller associated with the telephone call received in a call processing gateway, selecting a record in a CRM application pertinent to the caller and inserting the selected record into a variable field of a template. The method also includes text-to-speech (TTS) processing the template into audio and returning the audio to the call processing gateway for playback to the caller while the caller is on hold.
System and method for handling call recording failures for a contact center
A system and method for handling call recording failures for a contact center. A processor receives information on a first media controller currently assigned to a telephony call. The first media controller bridges a first media path between the first and second communication devices and records, into a storage device, media exchanged in the first media path during the telephony call. The processor detects failure of the first media controller during the telephony call, where the failure of the first media controller tears down the first media path. In response to detecting the failure, the processor bridges a second media path between the first and second communication devices until a second media controller is identified. In response to the second media controller being identified, the second media controller is signaled to bridge and record media exchanged during the telephony call.
Mobile terminal and controlling method thereof
A mobile terminal and controlling method thereof are disclosed, by which a holography user interface is provided. The present invention includes a controller, a holography storing medium configured to record an interference pattern generated by interference of light, and a holography output module, if at least one event among a plurality of trigger events occurs, outputting a holography image attributed to diffraction between the light applied to the holography storing medium and the interference pattern under the control of the controller, wherein the controller controls the holography image to be outputted in accordance with at least one holography pattern set previously.
Mobile terminal equipped with touch screen and method of controlling therefor
A mobile terminal is disclosed. A mobile terminal according to one embodiment of the preset invention includes a first touch screen including a sub display, a second touch screen including a main display, a touch recognition sensor configured to recognize a first touch input and a second touch input starting on a first position of the first touch screen, a memory configured to store the recognized first touch input and the second touch input as a unlock pattern and if a third touch input and a fourth touch input starting on a second position of the first touch screen are recognized by the touch recognition sensor, a controller configured to compare the unlock pattern stored in the memory with the recognized third touch input and the fourth touch input and execute unlock of the main display according to a result of the comparison.
Adjustable mobile phone settings based on environmental conditions
A mobile communication device automatically adapts to different environments based on the ambient audio it detects. Device message indicators (e.g., ringers, haptic feedback devices) are automatically adjusted based on ambient audio levels and possibly other environmental parameters so that they are less intrusive in quieter environments and, in noisier environments, more intrusive so that they are more able to gain the attention of the user.
Mobile terminal, electronic system and method of transmitting and receiving data using the same
Provided are a mobile terminal, an electronic system, and a method of transmitting and receiving data using the same for effectively transmitting and receiving data between the mobile terminal and external electronic devices.
Events on multiple phones
A method and device for distributing an event to more than one electronic device comprising receiving the event on a first electronic device, determining whether the first electronic device is connected to at least one other electronic device, and forwarding the event to the at least one other electronic device if connected.
Serial wrap-around redundancy system
A network system includes a first data source device with a primary interface and one or more second data source devices with a secondary interface disposed in electrical communication with the first data source device. A common data source device communicates with the first data source device and the second data source device(s). A serial string with a backbone is electrically connected to the primary interface and to the secondary interface. At least one endpoint device is electrically connected to the backbone via an endpoint interface. The primary interface is constructed and arranged initially as a master communication source for the serial string. The secondary interface is constructed and arranged to monitor messages transmitted by the primary interface and to take over as the master communication source if the secondary interface does not detect messages from the primary interface after a predetermined amount of time.
Illuminated cell phone case
An illuminated cell phone case that includes a one piece bumper that surrounds a perimeter of a cell phone, illuminated indicia that is disposed on a back portion of the illuminating cell phone case and a LED, PCB and battery assembly. The illuminating cell phone case includes one or more programmable microprocessors that controls a plurality of LED lights, LCD Screens, LED Screens, a motion sensing chip, an audio detection sensor microphone, electronic microprocessor switches that activates electronic components powered by a battery that provides power to the illuminating cellphone case.
Portable communication devices with accessory functions and related methods
Portable communication devices and related methods for use in supporting voice and/or data communication are provided. One example portable communication device includes a housing, a display device disposed at said housing, a processor disposed at least partially within said housing, the processor coupled to said display device, and an interface connector disposed at said housing and coupled to said processor. The interface connector is configured to couple to a module. The processor is configured to communicate, through said interface connector, via a plurality of communication protocols. The processor is configured to select at least one of the plurality of communication protocols based on the module coupled to the interface connector.
Apparatuses and methods for a flexible display on a mobile device
Embodiments are provided for mobile phones, and similar sized electronics devices, with flexible displays, which allow suitable viewing sizes for different applications. The embodiment devices combine, into one compact package, the benefits of a small carry size with those of a large display. An embodiment mobile phone with a flexible display includes a first part having a first surface and a first edge, and a second part having a second surface and a second edge. A rotatable hinge couples the first edge of the first part is coupled to the second edge of the second part. The flexible display of the mobile phone is a continuous flexible display which has a back surface disposed on the first surface of the first part and on the second surface of the second part. The viewing surface of the flexible display is opposite to the back surface.
Method and apparatus for transmitting data and method and apparatus for processing data
A method of transmitting data and a method of processing data, the methods including acquiring basic data of a type defined in the open API and extended data of a type not defined in the open API; converting the extended data to data of a type defined in the open API; and invoking the open API and transmitting the basic data and the converted extended data to the server.
Electronic apparatus, stream transmission and reception method of electronic apparatus, program, host device, and stream transmission and reception method of host device
An electronic apparatus including a synthesized stream creation unit, a stream transmission unit, a process information retaining unit, a count information addition unit, a stream reception unit, and a processing unit is provided. The electronic apparatus enables synthesis of a plurality of streams into one stream and then transmission of the stream with external devices. A stream transmission and reception method of the electronic apparatus, a program, a host device, a stream transmission and reception method of the host device are also provided.
Method and system for serialization and deserialization (SERDES) for inter-system communications
An integrated circuit may comprise a tuner operable to digitize a band of frequencies comprising a plurality of television channels, a crossbar operable to select one or more of the plurality of television channels output by the tuner, a plurality of demodulators operable to receive the selected one or more television channels from the crossbar and demodulate the selected one or more television channels to recover a plurality of transport streams, a transport module operable to multiplex the plurality of transport streams into a single packet stream, and a framer operable to: encapsulate packets of the plurality of transport streams into transport stream frames of a serial datastream, and insert filler frames into the serial datastream after every Nth transport stream frame of the serial datastream, where N is an integer.
Apparatus and methods for flexible communications in a network
A method that incorporates teachings of the subject disclosure may include, for example, transmitting a first query to a domain naming server responsive to receiving a session initiation protocol message comprising a fully qualified domain name. The first query can include one of an internet protocol version 4 address query or an internet protocol version 6 address query associated with the fully qualified domain name. The method can include receiving at least one answer from the domain naming server. The at least one answer can include at least one of an internet protocol version 4 address having no errors, a second internet protocol version 6 address having no errors, or both. The method can also include transmitting a message to a communication device. The message can include information associated with the at least one answer.
Header compression with a code book
A method of transmitting data packets is disclosed. The method comprises acquiring a data packet to be transmitted; parsing the data packet to extract at least a part of its header; matching the extracted part of the header with header items stored in a code book database; preparing, if the extracted part of the header matches a header item stored in the code book database, an adapted data packet comprising a code from the code book corresponding to the match replacing the at least part of the header, and the rest of the data packet; and transmitting the adapted data packet, if the adapted data packet is prepared, or the data packet, if no adapted data packet is prepared. A corresponding method of receiving data packets is also disclosed. The method comprises receiving a data transmission; determining whether the data transmission comprises a compressed header indicator for a data packet with a compressed header; and if the data packet is determined to comprise a compressed header, performing the steps of: parsing the data packet to extract a code; looking up a code book database using the extracted code to find corresponding header data; and decompressing the data packet by replacing the compressed header indicator and the extracted code by the header data. A transmitter, receiver, communication system, and computer program for implementing the methods are also disclosed.
Account administration for hosted services
A graphical user interface for rendering hosted services is provided. The user interface includes a set of hosted service identifiers associated with a domain name. The set of hosted service identifiers is further broken down into a first subset of service identifiers and a second subset of service identifiers. Each identifier in the first subset corresponds to a service provided by a first service provider and each identifier in the second subset corresponds to a service provided by a second service provider. One of the services provided by the first service provider is rendered in response to a user selection of one of the first subset of service identifiers. One of the services provided by the second service provider is rendered in response to a user selection of one of the second subset of service identifiers.
Updating event posts
Implementations generally relate to updating events in a social network system. In some implementations a method includes generating one or more event objects having an event information section associated with a first user. The method also includes sending a post from the first user to one or more target users in a social network system, updating the one or more event objects based on the event information section, and causing the one or more updated event objects to be displayed along with the post to the one or more target users in the social network system.
A method of transmitting content from a server to a client executing an application is disclosed. A request from a client for a file that includes content related to executing an application is received. The request is responded to by transmitting a modified file that includes initial portions of the file that are sufficient to permit initial functioning of the application, wherein the modified file is formatted with at least one placeholder for remaining portions of the file. The application can begin to access the initial portions of the file by accessing the modified file. The application can access the remaining portions of the file using the at least one placeholder.
Social media impact assessment
A system for identifying influential users of a social network platform. The system may compute a score for each of multiple users. Such a score may be topic-based, leading to a more accurate identification of influential users. Such a topic-based score may indicate authority and/or impact of a user with respect to a topic. The impact may be computed based on authority combined with other factors, such as power of the user. The authority score may be simply computed, in whole or in part, directly from a tweet log without, for example creating a retweet graph. As a result, the scores may be computed, using MapReduce primitives or other constructs that allow the computations to be distributed across multiple parallel processors. Such scores may be used to select users based on impact as part of social trend analysis, marketing or other functions.
Device discovery using broadcast technology
Techniques described herein automatically discover the IP address of a first network device such as but not limited to a multifunction printer. Such techniques use a unique identifier of the first network device, such as for example a multifunction printer serial number. Such unique number is used in the configuration of a second network device, such as for example a Digital Front End/External Print Controller that may need the IP address of the first network device. The unique number may be entered once into the second network device or may be received from the first network device through a data interface by the second network device. Techniques then may use any available broadcast technology such as but not limited to Simple Network Management Protocol (SNMP) to determine from available network devices which network device therefrom has the same unique number, thereby obtaining the IP address of the first network device.
Determining the status of a device through use of a publisher/subscriber interface
A publish/subscribe interface is used to enable a non-publish/subscribe first system (such as an IP network device) to obtain status information about a publish/subscribe device that cannot be pinged by the first system. The first system sends a status request to a domain name server associated with a system known to include the publish/subscribe device. The status request includes a domain name for the publish/subscribe device. Topic space maintained by a message broker in the publish/subscribe system includes status topics associated with publish/subscribe devices. The status topics contents reflect the current availability of the associated publish/subscribe device. The domain name is mapped to a status topic associated to the publish/subscribe device identified in the status request and the contents of that status topic are retrieved. If the contents have a first value, a “good” IP address is returned to the first system. If the contents have the second value, a “bad” IP address is returned. The return address is used in ping messages. If the ping operation succeeds, it is concluded the publish/subscribe device is online. If the ping operation fails, it is concluded that the publish/subscribe device is off-line.
Session transfer and suspension in a remote access application framework
Systems and method for providing for suspension and transfer of remote access sessions. In accordance with the methods, a request to suspend a session may be received at a server tier. The server tier prepares a URL that may be used at a later time by a client to resume the session. The URL is communicated to a client tier from which the request was received and, thereafter, a connection between the client tier and the server tier is closed. At a subsequent time, a request may be received to resume the session at the URL. After receipt of the request to resume the session, a connection with the requesting client tier is established by the server tier, and the session is resumed.
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for data synchronization. In general, one aspect of the subject matter described in this specification can be embodied in methods that include the actions of receiving a knowledge vector from a first device of the pair of devices, the knowledge vector identifying data items and latest changes to the data items known to the peer device; comparing, at a second device of the pair of devices, the received knowledge vector with a local knowledge vector for changes unknown to the first device; and sending a list of changes to the first device.
Peer to peer networking and sharing systems and methods
An embodiment includes peer-to-peer (P2P) pairing protocols that mutually authenticate both end points and do not rely upon a backend server or a central certificate provisioning server. An embodiment provides a persistent control path for sending inter-peer control information (e.g., synchronization messages). Another inter-peer path includes an “on-demand” data path enabled when a unit determines content is ready for sharing. After the content is shared, the data path may be deconstructed, which saves resources on both sides and makes the framework more scalable. Also, embodiments include graphical user avatars to whereby a first peer shares content with a second peer by dragging content over the avatar.
System and method of analysing transfer of data over at least one network
A system and method are disclosed for analyzing transfer of data over at least one network, including a device configured to select a subset of users from a user base of at least one network. The system can include a device configured to analyze data relating to potential unlicensed data transfer by the subset of users, and a device configured to generate an estimate of unlicensed data transfer by the user base based on the analysis of data of the subset of users.
Connection re-balancing in distributed storage systems
At a particular node of a storage service to which connections have been established on behalf of one or more clients, respective workload indicators are collected from a set of peer nodes of the storage service. A determination is made at the particular node that (a) a local workload metric exceeds a connection rebalancing threshold, and (b) a peer capacity availability criterion has been met. The peer capacity availability criterion may be determined from the respective workload indicators. In response to the determination, a particular client connection is closed.
System and method for integrating an electronic pointing device into digital image data
A method and system is provided for creating a new video stream having an electronic pointer rendered therein. The disclosed system includes a receiver that continuously receives position data from a wireless pointing device; a calibration unit that calculates positions for the electronic pointer relative to a viewing device based on the position data received from the wireless pointing device; a processor that renders the electronic pointer in an original video feed received from a video source to create the new video stream as a single data stream, such that the electronic pointer is positioned at locations in the new video stream that correspond to the calculated positions for the electronic pointer; and a server that transmits the new video stream to the wireless pointing device to be rendered on a screen of the wireless pointing device.
Information processing apparatus, information processing method, information processing program and recording medium recording information processing program therein
It is an object to provide an information processing apparatus and the like capable of, even when an initial application cannot be accepted, presenting an alternative to the application to an applicant so that the applicant can easily apply the alternative.When the contents of an initial application are grasped from received transmission data and it is judged that the application cannot be accepted, reply data containing transmission destination information capable of identifying an alternative to the application is created and the created reply data is transmitted to the transmission source of the transmission data.
Integrated experience for applications within a mobile application
A system and method that supports an integrated user interface experience with third party hosted applications selected and installed by a user within a user-installed native application of a user communication device.
Cloud computing appliance that accesses a private cloud and a public cloud and an associated method of use
The present invention is a cloud computing appliance, having a chassis, at least one server, capable of connecting to a remote interface device, at least two network switches, at least one firewall, and a power supply circuit. The present invention also includes a method for initializing the cloud computing appliance, and a method for migrating software applications to the cloud computing appliance. The cloud computing appliance includes at least one private cloud and is in electronic communication with at least one public cloud. There is an electrical connection capable of being in electronic communication with the remote interface device that allows a system administrator to interact with the at least one private cloud and the at least one public cloud.
Client bandwidth emulation in hosted services
Bandwidth on the Internet and intranets is highly variable and unreliable, two properties that can make streaming digital media content difficult. In a virtualization system (e.g., virtual desktop, remote desktop, remote application, and the like), this is especially so based on different bandwidths available to the session host and the session client. Methods and systems for emulating a bandwidth of a client device in a virtualization system are described. When the session host is executing an application (e.g., a digital media application), the session host may emulate the bandwidth of the session client by hooking into and throttling data over one or more APIs associated with the digital media application, thereby tricking the application into making a bandwidth determination based on the emulated bandwidth of the session client, rather than based on the bandwidth of the session host.
Mobility handling in a communication network
A method and apparatus for handling mobility for a first host with a MPTCP connection to a second host. The first host is identified by a master address that does not change for the duration of the connection, and a plurality of locators. Each locator is associated with a path used in the MPTCP connection. The first host then determines that it has moved, and so obtains new locators. It then sends a first message to a Location Server (LS). The LS maintains an association between the master address and the locators, and the first message includes the new locators. The first host then sends a second message to the second host, the second message including the new locators. The first host can then receive packets sent from the second host sent using the MPTCP connection using the new locators.
Sending files from one device to another device over a network
Techniques are provided for causing a file to be sent from a source device over a network to one or more destination devices. An intermediary receives a notification of a file and determines which destination device(s) are to retrieve the file. The intermediary may determine the destination device(s) based on one or more attributes of the file. The intermediary may cause the file to be stored in persistent storage that is maintained by a separate storage service. The intermediary may cause the file to be deleted after a particular period of time. The source device may send multiple versions of a file to the intermediary, which determines which destination device is to receive which version. The file may be a digital image and a destination device may be a device that displays a slideshow of digital images while the destination device receives the digital image over a network.
Generation of representational state transfer interface from application programming interfaces
One or more processors receive a standardized interface request that includes a command formatted in an application protocol. One or more processors extract a class name from a uniform resource identifier (URI) of an application header of the standardized interface request. The application header includes a meta-data that allows class declarations to function as a portion of interface description language. One or more processors identify a type of the command based, at least in part, on the application protocol of the command. One or more processors process the command based on the identified type of the command, the application protocol of the command, and the meta-data. One or more processors send a standardized interface response based on a result of the processing.
Processing selected browser requests
Processing a browser request that specifies a destination network resource generally includes intercepting a browser request that specifies a selected destination network resource and redirecting the browser request to a network server that differs from the destination resource specified by the browser request. Processing a browser request also may include intercepting a browser request received from a client computer at a proxy server when the browser request specifies a selected destination network resource and performing instructions associated with and in addition to instructions performed to download the selected destination network resource.
Cooperative federation of digital devices via proxemics and device micro-mobility
The subject disclosure is directed towards co-located collaboration/data sharing that is based upon detecting the proxemics of people and/or the proxemics of devices. A federation of devices is established based upon proxemics, such as when the users have entered into a formation based upon distance between them and orientation. User devices may share content with other devices in the federation based upon micro-mobility actions performed on the devices, e.g., tilting and/or otherwise interacting with a sending device.
Dynamic content injection
Some examples provide for dynamic content injection into a web application. A request may be made by a browser extension operating in a web browser for a list of one or more files from a file server, the one or more files including content to be injected into a web page operated by the web application. Upon receiving a response, the content of the one or more files may be injected into the web page operated by the web application.
Communication system, server apparatus, and communication method
Disclosed herein is a communication system including: a first apparatus and a second apparatus being communication terminals at least one of which resides on a mobile object; and a server apparatus. The server apparatus includes: a determination block configured to determine whether the first and the second apparatuses are in close proximity to each other based on position data of the first apparatus and on position data of the second apparatus; and a communication block configured such that if the determination block determines that the first and the second apparatuses are in close proximity to each other, the communication block transmits preinstalled content data to at least one of the first and the second apparatuses.
Applying heuristics to manage multicast subscriptions within computer networks
An access node comprises a control unit that determines an anticipated working set of television channels based on a historically delivered working set of television channels to which a subscriber network has previously subscribed. The anticipated working set indicates a time at which the subscriber network is expected to subscribe to a different set of channels. The access node includes at least one interface that couples the access node to the subscriber network, that prior to the time at which the subscriber network is expected to subscribe to the different set of channels, subscribes to the different set of television channels in accordance with the anticipated working set such that media content associated with the different channels of the anticipated working set is available for delivery to the subscriber network at the time during which the access node expects the subscriber network to subscribe to the different set of channels.
Performing an action on a social networking system based on a content identifier embedded in provided content
A content source provides metadata associated with content, such as an audio signal or video data, to a social networking system. The metadata identifies characteristics of the content or specifies an action for the social networking system to perform. A content identifier associated with the metadata is generated by the social networking system, and an association between the content identifier and the metadata is stored. The content identifier is provided to the content source, which encodes the content identifier into the content (e.g., as a watermark). When a client device receives the content encoded with the content identifier, the content identifier is extracted and communicated to the social networking system in connection with a user account associated with the client device. Based on the content identifier, the social networking system retrieves the corresponding metadata and performs an action in connection with the user account based on the metadata.
Social sharing of contacts information
Sharing contact information among one or more communities or individuals in a social media environment, in one aspect, may comprise creating contact information associated with contact as social media content based on input from a first user. At least a portion of the contact information may be shared with a plurality of second users via a social media like application.
Mapping virtual machines from a private network to a multi-tenant public datacenter
A method for creating a set of virtual machines on a public datacenter. The method, from a first network controller of a private network, commands a second network controller of the public datacenter to create the virtual machines. The method, from the first network controller of the private network, communicates with the second network controller of the public datacenter to determine a type of the second network controller. When the first network controller includes instructions for using application programming interfaces (APIs) of the type of the second network controller, the method uses the APIs to set up a VLAN for the set of virtual machines in order to allow the virtual machines of the set of virtual machines to communicate securely with each other without sending the communications through the private network. In some embodiments, the VLAN is a private VLAN (PVLAN).
Synchronous communication system and method
A method and computing system for providing, using one or more computing devices, a plurality of users of a social network with the ability to schedule a topic-specific, synchronous communication session to occur at a future time. An indication is received, from a first user of the plurality of users, to schedule the topic-specific, synchronous communication session to occur at a future time. Electronic invitations are provided concerning the topic-specific, synchronous communication session, using the one or more computing devices, to one or more invited users chosen from the plurality of users of the social network.
Entitlement for call routing and denial
In one embodiment, a network device enforces entitlement rules based on call control traffic received. The call control traffic is received at the network device from an application associated with a first user for a second user. The network device determines identification information for the first user and/or the second user. The network device then determines an action to take based on an entitlement policy associated with the first user or the second user. The action is then performed. The network device enforces the entitlement policy without any modification to the application to cause the call control traffic to be routed through the network device. The network device is in the call control path but does not appear to be a participant in the call to the first application.
Peer-to-peer internet protocol telephone system with system-wide configuration data
Various embodiments of the invention provide a Peer-to-Peer (P2P, Internet Protocol (IP) telephone system. The telephone system includes a plurality of terminals coupled together via an IP network. The terminals cooperate with one another to provide telephony features without a dedicated central controller such as a PBX and/or a KSU controller. The terminals further cooperate with one another to maintain system-wide configuration data for the telephone system.
Method of controlling session initiation protocol sessions with state charts
A method involves acts of receiving a Session Initiation Protocol (SIP) request, initiating by a computing device having a processor, a SIP session as a result of receiving the SIP request, executing, by the processor, a state chart implemented in the SIP server, communicating events by the computing device to the state chart, as the events occur in the SIP session, and changing states in the SIP session by the computing device, as the states are defined in the state chart, to completion of the SIP session.
Caller-callee association of a plurality of networked devices
The present disclosure generally relates to systems and methods for establishing and maintaining communication between two or more communication devices coupled to communication networks. Some specific aspects relate to communication between a plurality of communication devices each of which is coupled to a respective network. Other aspects relate to establishing such communication by way of contact lists maintained and facilitated on systems coupled to the networks. Users of multiple communication networks, such as VoIP, PSTN and wireless, employ multiple communication devices to communicate with their contacts. For example, a VoIP enabled computer is necessary to access contacts on a VoIP network and a mobile or cellular telephone is used to access contacts on wireless and PSTN networks. A contact list, stored on one communication device, in some instances, cannot be accessed from another communication device. For example, a contact list stored in a VoIP enabled computer cannot be accessed from PSTN or wireless phone devices. Various embodiments described herein provide a convenient solution that can integrate contacts stored on different communication devices and make them accessible from a single device.
Method and system for providing emergency related services via a broadband gateway
Aspects of a method and system for providing emergency-related services via a broadband gateway are provided. In this regard, a broadband gateway may receive one or more emergency notification messages, generate one or more alert messages in response to the received emergency notification message(s), and communicate the alert message(s) to the electronic device(s). Accordingly, each of the one or more alert messages may be formatted for communication to a corresponding one or corresponding ones of the one or more electronic devices. The emergency notification message(s) may be generated by an emergency services provider in response to an emergency. The emergency services provider may send a notification message to the broadband gateway device upon determining that the broadband gateway device, a person associated with the broadband gateway device, and/or a location associated with the broadband gateway device meets particular criteria.
Hierarchical management of devices
A system for hierarchical management of devices may include memory and a processor. The processor may configure first devices of a first network with device operating policies to perform operations based at least on attributes of the first devices, where the operating policies prevent device interference. The processor may discover a second network of second devices managed by a second management entity and may negotiate with the second management entity to determine a primary management entity for the networks. The processor may receive device operating policies and attributes of the second devices when the second management entity is not the primary management entity. The processor may provide an adjusted device operating policy for a second device to the second management entity when the second device causes interference with a first device, the adjusted second device operating policy being based at least on attributes of the second device.
System, method, and computer program product for preventing a modification to a domain name system setting
A system, method, and computer program product are provided for preventing a modification to a domain name system setting. In use, an attempt to modify a domain name system setting is detected. Additionally, a source of the attempt and an attribute of the modification are verified. Further, the modification to the domain name system setting is prevented, based on the verification.
Multiple operating system rotation environment moving target defense
Systems and methods for providing a multiple operating system rotation environment (“MORE”) moving target defense (“MTD”) computing system are described. The MORE-MTD system provides enhanced computer system security through a rotation of multiple operating systems. The MORE-MTD system increases attacker uncertainty, increases the cost of attacking the system, reduces the likelihood of an attacker locating a vulnerability, and reduces the exposure time of any located vulnerability. The MORE-MTD environment is effectuated by rotation of the operating systems at a given interval. The rotating operating systems create a consistently changing attack surface for remote attackers.
Online portal for improving cybersecurity risk scores
Determining an entity's cybersecurity risk and benchmarking that risk includes non-intrusively collecting one or more types of data associated with an entity. Embodiments further include calculating a security score for at least one of the one or more types of data based, at least in part, on processing of security information extracted from the at least one type of data, wherein the security information is indicative of a level of cybersecurity. Some embodiments also comprise assigning a weight to the calculated security score based on a correlation between the extracted security information and an overall security risk determined from analysis of one or more previously-breached entities in the same industry as the entity. Additional embodiments include calculating an overall cybersecurity risk score for the entity based, at least in part, on the calculated security score and the weight assigned to the calculated security score.
System and method for evaluating and enhancing the security level of a network system
Examples described herein provide for a system that evaluates a security level of a network system. Additionally, examples described herein evaluate a security level of a network system in order to enable a determination of components that can be used to enhance the security level of the network system.
Method and apparatus for providing network security
The invention relates to the provision of virus scanning capabilities in a network environment. Optimum use is made of a plurality of virus scanners by inspecting content passed over the network to identify which of the scanners is most suitable for that content. The content is then passed to the appropriate scanners in dependence on the results of the inspection.
Malware detection and analysis
Embodiments of the invention describe systems and methods for malicious software detection and analysis. A binary executable comprising obfuscated malware on a host device may be received, and incident data indicating a time when the binary executable was received and identifying processes operating on the host device may be recorded. The binary executable is analyzed via a scalable plurality of execution environments, including one or more non-virtual execution environments and one or more virtual execution environments, to generate runtime data and deobfuscation data attributable to the binary executable. At least some of the runtime data and deobfuscation data attributable to the binary executable is stored in a shared database, while at least some of the incident data is stored in a private, non-shared database.
Controlling access to shared content in an online content management system
Systems and methods for controlling access to shared content in an online content management system, include receiving a request to access a content item from a requester, wherein the content item is stored in a synchronized online content management system. The example method then includes determining that the requester is in an approved list of requestors and granting access to the content item. In one variation, the request to access the content item includes activation of a shared link. In another variation, the request to access the content item includes access to a shared folder in the synchronized online content management system. In a third variation, determining that the requester is in an approved list of requesters includes determining that the requester is logged into a primary and secondary account, and that the requester is in an approved list for the secondary account.
Tracking and tracing information theft from information systems
In one embodiment, a processing device receives, from an accessing system, an access request for stored information. In response, the device generates unique classification and tracking metadata based on the access request, and embeds the classification and tracking metadata as steganographic code into the source information before returning the information according to the request. The device then replies to the access request with the return information containing the embedded steganographic code.
System and method for generating a biometric identifier
Systems and methods are provided for recording a user's biometric features and generating an identifier representative of the user's biometric features using mobile device such as a smartphone. The systems and methods described herein enable a series of operations whereby a user using a mobile device can capture imagery of a user's face, eyes and periocular region. The mobile device is also configured analyze the imagery to identify and determine the position of low-level features spatially within the images and the changes in position of the low level features dynamically throughout the images. Using the spatial and dynamic information the mobile device is further configured to generate a biometric identifier characterizing the user's biometric features and which can be used to identify/authenticate the user by comparing the biometric identifier to a previously generated biometric identifier.
Certificate management method based on connectivity and policy
Plural modes of operation may be established on a mobile device. Specific modes of operation of the mobile device may be associated with specific spaces in memory. By associating the existing certificate store structure and key store structure with a mode of operation, certificates and keys can be assigned to one space among plural spaces. Furthermore, management (viewing/importation/deletion) of certificates associated with specific modes of operation may be controlled based on the presence or absence of a mobile device administration server and the status (enabled/disabled) of an IT policy.
System and method to associate a private user identity with a public user identity
The inventive system includes a host, a network including a security gateway, and a public application. Established are an access session between the network and the host and an application session between the public application and the network. An application session record is created for the application session, and includes the user's public user identity used to access the public application, the user's private user identity used to access the network, a host identity, and an application session time, To determine the private user identity for the application session, the security gateway sends a query with the host identity and the application session time. These are compared with the host identity and access session time in an access session record, if they match, then the private user identity in the access session record is returned, and it is stored as the private user identity in the application session record.
Redirect to inspection proxy using single-sign-on bootstrapping
An authentication request is generated when a user of a client device attempts to initiate a user session with an application managed by a service provider. An authentication response is generated based on credentials received from the user. The authentication response includes an assertion on behalf of the user. A delivery resource locator for the assertion is rewritten to a resource locator of a proxy in order to redirect the assertion to the proxy. The authentication response is sent to the client device together with the resource locator of the proxy in order to cause the client device to send the assertion to the proxy that decodes the re-written resource locator and sends the assertion to the service provider.
Actively federated mobile authentication
To make a trusted web service call, a client application sends a series of messages to obtain tokens that allow service requests to pass through a service relay. The user obtains a first security token by providing the user's credentials. A second token is obtained from a trust broker that validates the first token. Both tokens are then sent with a service request to a service relay. The service relay validates the second token and then passes the first token and the service request to a connector service. The connector service validates the first token and passes the service request to a target back end service. The connector service acts as the user when communicating with the back end service. Service responses are routed back to the user through the connector service and the service relay.
Direct mode communication system and discovery interactive method thereof
A direct-mode communication system having a user direct-mode communication apparatus and a serving direct-mode communication apparatus is provided. The user direct-mode communication apparatus connects to an operating server, and authenticates with the operating server to obtain a user authenticated identification. The serving direct-mode communication apparatus connects to the operating server, and authenticates with the operating server to obtain a serving authenticated identification. The user direct-mode communication apparatus broadcasts a discovery signal based on the user authenticated identification. The serving direct-mode communication apparatus receives the discovery signal after the user direct-mode communication apparatus enters a default serving range, and provides interactive information to the user direct-mode communication apparatus according to the discovery signal and based on the serving authenticated identification.
Selectively performing man in the middle decryption
An agent on a device within a network receives a request to access a resource outside the network. A first encrypted connection is established between the device and the agent, and a second encrypted connection is established between the agent and the resource, to facilitate encrypted communication traffic between the device and the resource. The agent sends a policy request to a network appliance within the network, the request specifying the resource. The agent receives a policy response indicating that the resource is associated with one or more security policies of the network. Traffic passing between the device and the resource is selectively decrypted and inspected depending on the security policies.
A communication access control system (100) includes at least one access control cell (160), implemented on a computing entity, for computing random input addresses (205) and random output addresses (210) upon a request of a system user (105). The input and output addresses are based on a cryptographic key (165) held by a service facility (115) associated with the at least one access control cell (160).
Secure data parser method and system
A secure data parser is provided that may be integrated into any suitable system for securely storing and communicating data. The secure data parser parses data and then splits the data into multiple portions that are stored or communicated distinctly. Encryption of the original data, the portions of data, or both may be employed for additional security. The secure data parser may be used to protect data in motion by splitting original data into portions of data that may be communicated using multiple communications paths.
Cloud computing method and system
Methods and systems integrating sensitive or private data with cloud computing resources while mitigating security, privacy and confidentiality risks associated with cloud computing. In one embodiment, a computer network system includes a firewall separating a public portion of the computer network from an on-premises portion of the computer network, a database storing private data behind the firewall, and a user device connected with the computer network. The user device accesses an application hosted in the public portion of the computer network. In response, the application generates return information. The user device receives the return information and generates a request for private data based on at least a portion of the returned information. The request is transmitted to the database which generates a response including the requested private data. The response is transmitted in an encrypted form from the database via the computer network to the user device.
Method of and system for providing a client device with an automatic update of an IP address associated with a domain name
Method of providing client device with automatic update of an IP address associated with domain name, comprising: If domain name is member of second set being subset of first set, obtaining by server from first domain name resolution service a first IP address. If domain name is member of third set being subset of second set, sending to client device first IP address. If domain name is member of second set, and if second IP address associated with domain name being different from first IP address is obtainable by server from second domain name resolution service, obtaining by server from second domain name resolution service second IP address. If domain name is member of third set, sending to client device second IP address without server having received from client device request for an IP address associated with domain name after server has sent to client device first IP address.
Method and system for providing service for searching friends
A method of providing a friend search service of a portable terminal is provided. The method includes transmitting, by a first portable terminal, a message for controlling a microphone of a second portable terminal to a contact server through a cellular network, outputting a sound including a first encryption key after transmitting the message, receiving a second encryption key from the second portable terminal through the cellular network, checking the second portable terminals existing in a sound-reaching area by comparing the first encryption key with the second encryption key, and displaying a friends list including the second portable terminals existing in the sound-reaching area.
Storage and processing of ephemeral messages
A server includes volatile and non-volatile memories for storing messages received from a client device. A message reception module of the server stores a message received from a first client device in the volatile memory for an extended time period based on an indicator included in the message. The message reception module deletes the message from the volatile memory based on detection of a triggering event or stores the message in the non-volatile memory based on not detecting the triggering event before the extended time period has expired. The triggering event may include the message having been read by all specified recipients of the message. The indicator may be included in the message based on a relationship of the message to other messages. The message including the indicator may be related to other messages as part of a same conversation that has been determined to be suitable for short-term storage.
System and method for merging edits for a conversation in a hosted conversation system
A server system hosts a plurality of conversations. For a respective conversation the server system receives a first sequence of edits and a second sequence of edits to a respective content unit of the conversation from different participants of the conversation. The server system converts the first and second sequences of edits into respective first and second merged sequences of edits. The server system responds to a determination that the first merged sequence of edits and the second merged sequence of edits meet predefined conflict criteria by transforming the first and second merged sequences of edits. The server system sends the respective transformed sequences of edits to respective participants so that respective participants can apply either the first sequence of edits followed by the second transformed sequence of edits or applying the second sequence of edits followed by the first transformed sequence of edits to produce a same result.
Augmenting a real-time collaboration with ranked electronic bulletin board posts
An approach for augmenting a current instant message (IM) session is presented. The subjects of the first and second posts of electronic bulletin boards are determined to be similar to the text dialog of the IM session. The first post is determined to be from a first user who previously collaborated with a participant of the text dialog. The second post is determined to be from a second user who has not collaborated with the participant. Based in part on the first post being from the first user who previously collaborated with the participant and the second post being from the second user who has not collaborated with the participant, a first hyperlink to the first post is displayed relative to a second hyperlink to the second post to indicate the first post is ranked higher in relevance to the current IM session than the second post.
Method of and apparatus for configuring quality of service
In a method of configuring quality of service for a return path of a bi-directional label switched path within a network a label information context for a quality of service configuration of the return path of a label switched path is configured separately from a quality of service configuration for the forward path. Path set up messages are formed containing a return path quality of service object indicating the quality of service configuration for the return path separately from a quality of service configuration for the forward path.
Proxy application with dynamic filter updating
The disclosure describes a proxy server application that supports the dynamic modification of proxy rules implemented by a proxy server. The proxy rules implemented by the proxy server specify network behaviors to be performed at various points during the handling of requests from client applications. A proxy server implements the proxy rules by processing one or more user-generated network traffic filters for managing network traffic. In an embodiment, users generate network traffic filters by creating network traffic filter source code that specify processing steps to be performed by a proxy server relative to network messages the proxy server receives. In an embodiment, user-generated network traffic filters may be added, removed, reordered, or otherwise modified in a proxy server application at runtime in order to respond to current network conditions or to achieve other desired proxy configurations.
Controller area network (CAN) worst-case message latency with priority inversion
This application discloses determining a worst-case latency in a controller area network (CAN) for messages experiencing priority inversion within individual controllers. A system to determine the worst-case latency can include a memory system to store computer-executable instructions and a computing system, in response to execution of the computer-executable instructions, can identify that a controller area network (CAN) design includes a controller configured to sequence messages for transmission over a shared bus with at least one of the messages experiencing priority inversion. The computing system also can determine a delay for the controller to present a first message to the shared bus for transmission when the first message is ordered behind a second message having a lower priority than the first message. The delay may be a portion of the worst-case latency corresponding to the priority inversion.
Use of switching for optimizing transport costs for bandwidth services
Methods and systems are disclosed for receiving, with circuitry of a network controller, information indicative of characteristics of incoming data traffic in an information transport network, the network comprising at least one packet switched layer and at least one transport layer; determining to transport the incoming data traffic through at least one determined layer being at least one of the packet switched layer and the transport layer, based on the characteristics of the incoming data traffic and/or network information; determining at least one route for the incoming data traffic through the determined layer; and transmitting a signal containing computer executable instructions to at least one switch, to configure the switch to steer the incoming data traffic through the at least one route of the at least one determined layer. The information indicative of characteristics of data traffic may be gathered/provided by one or more traffic monitor.
Method for learning media access control address, network device, and system
Embodiments of the present invention provide a method for learning a media access control address, a network device and a system. The method includes: generating a key value according to a key field of a received packet, and obtaining an index value corresponding to the key value according to the key value; performing a linear random iteration on the index value according to a preset number of iterations; searching, according to an iteration index value obtained during a first iteration, in a MAC address pool for a MAC address corresponding to the iteration index value obtained during the first iteration; and learning a MAC address of the packet according to a search result. By using the embodiments of the present invention a media access control address space may be fully utilized, and the problem of media access control address conflicts may be solved to the greatest extent.
An extended bridge structure that includes a controlling bridge and port extenders is disclosed. A port extender according to some embodiments of the present invention includes a processor that processes receives packets in a way that executes at least one procedure that substitutes for a function of the controlling bridge. A controlling bridge according to the present invention provides data to the port extender that enables it to execute the at least one procedure that substitutes for a function of the controlling bridge.
Media access control bridging in a mesh network
A network comprising a switch configured to learn a source address (SA) for a source node with a source port that receives a frame comprising the SA if the SA is not previously learned on another port and to subsequently forward any frame comprising a destination address (DA) for a destination node that matches the learned SA on the source port associated with the SA. A network comprising a switch configured to flood a frame received on a receiving port if the frame comprises a DA that is not previously learned on a source port and to distinguish the flooded frame from other forwarded frames by labeling the flooded frame, wherein the frame is flooded on a plurality of ports. A method comprising disabling a plurality of filtering database (FDB) entries that correspond to a plurality of addresses that are associated with a port, and sending the addresses in a control frame.
Managing network computing components utilizing request routing
Aspects of the disclosure will be described with regard to the processing of a client computing device DNS queries by a DNS processing service to determine an identifier associated with a previously instantiated hosted virtual machine instance. In one aspect, if the previously instantiated hosted virtual machine instance is instantiated, the DNS service can resolve the DNS query by transmitting network address information associated with the previously instantiated hosted virtual machine instance. In another aspect, if the previously instantiated hosted virtual machine instance is not instantiated, the DNS service can initiate a process to cause an instantiation of a hosted virtual machine instance based on the previously instantiated hosted virtual machine instance. The DNS service can then resolve the DNS query by transmitting network address information, or an alternative identifier, associated with the newly instantiated hosted virtual machine instance.
Systems and methods for routing broadband communications
Systems and methods for routing broadband communications are provided. Downstream data to be communicated from a cable service provider head end system to a customer device may be received by a provider edge routing device. The downstream data may be mapped by the provider edge routing device to a physical address associated with the customer device, and the downstream data may be output by the provider edge routing device for communication to the customer device. A provider edge device separate from the provider edge routing device may receive the output downstream data. Based at least in part upon the physical address, the provider edge device may determine a port for outputting the downstream data, and the provider edge device may output the downstream data on the determined port.
Apparatus and computer program product for handling network packets using a pipeline of elements
Apparatus and computer program product for a programmable packet processing platform for accelerating network infrastructure applications that have been structured so as to separate the stages of classification and action. A pipeline comprising a collection of elements for handling network packets is established under which respective elements are capable of including multiple entries, and respective entries are capable of defining whether the respective entry matches a respective network packet and at least one corresponding action for handling the respective network packet. Defining whether the respective entry matches a respective network packet comprises defining via a predefined set of identifiers to indicate respective network protocol fields of different network protocols. Exemplary actions include dropping packets, forwarding packets, encrypting packets, decrypting packets, and classification of packet flows.
Distributed service routing protocol suitable for virtual networks
A dynamic service routing protocol (DSRP) communicates messages (e.g., containing information regarding network routes and tables) across a partial-mesh network of nodes. Gateway nodes (i.e., computing devices that operate as a final sink point for a service route) are connected to edge routers (i.e., computing devices that operate as a transit for a service route) but not necessarily to other host nodes. Gateway nodes asynchronously and/or dynamically send DSRP messages for updating the router nodes' routing tables and to minimize manual route configuration.
Systems and methods for quality of service of encrypted network traffic
The present invention is directed towards systems and methods for providing classification of an encrypted network packet for performing QoS and acceleration techniques. Encrypted packets may be classified by a first classifier at a first portion of a network stack of a device as corresponding to a first predetermined application, and an application identifier may be included with the packet. In some embodiments, the packets may be decrypted in an order dependent on a first classification of the encrypted network packet. After decryption, packets may be reclassified as corresponding to a second predetermined application by a second classifier operating at a second portion of a network stack of the device above the first portion. Thus, network performance may be enhanced and optimized by providing QoS and acceleration engines with packet- or data-specific information corresponding to the application, while avoiding inefficiencies due to a lack of prioritization of decryption.
Synthetic loss measurements using session numbers
A method and system for performing synthetic loss measurements (SLM) includes methods for single-ended and dual-ended synthetic loss measurements. The methods include maintaining a session number indicative of a physical network component at each maintenance point used to perform synthetic loss measurements. The session numbers are maintained according to a novel protocol and are used to detect a change in the network component, such as resulting from a protection switch event. The session numbers enable the synthetic loss measurements to continue irrespective of changes in the values for the session numbers and to remove errors when computing frame loss that may arise when physical network components change. The disclosed methods and systems may be used when a link aggregation group exists between a local maintenance point and a remote maintenance point.
System and method for reduced latency reporting in an ethernet passive optical network (EPON)
A system and method for reduced latency reporting in an Ethernet passive optical network (EPON). Gate messages can be generated by a bridged fiber coax unit (FCU) in response to a first report message from a coax network unit (CNU). A second report message including a request for bandwidth can be transmitted to the optical line terminal (OLT) prior to receipt of upstream data at the FCU.
Adjusting quality of service in a cloud environment based on application usage
A system for providing a cloud-based service to an endpoint device includes a resources that provide the service to the device in accordance with a default Quality of Service (QoS) and a processor that monitors usage of the service on the device and automatically adjusts the service on the device in response to the usage, so that the service is provided to the device in accordance with a QoS other than the default QoS at least temporarily. A system for providing a cloud-based service includes an endpoint device that monitors usage of the service on the device and a server that provides the service to the device in accordance with a default QoS and automatically adjusts the service on the device in response to the usage so that the service is provided to the device in accordance with a QoS other than the default QoS at least temporarily.
Monitoring service-level performance using a key performance indicator (KPI) correlation search
One or more processing devices cause display of a graphical user interface (GUI) that includes a correlation search portion that enables a user to specify information for a key performance indicator (KPI) correlation search definition. The KPI correlation search definition includes search information and trigger determination information. The search information identifies KPI values, indicative of the KPI states, in a data store. The trigger determination information includes trigger criteria. The trigger determination evaluates the identified KPI values using the trigger criteria to determine whether to cause a defined action. A contribution threshold for a particular KPI definition is received via the GUI. The contribution threshold corresponds to a particular KPI state. The contribution threshold is stored as trigger criteria information. Each of the KPI values is derived from machine data pertaining to entities identified in a service definition using a search query specified by a KPI definition for the service.
System connections and user interfaces
This disclosure relates to methods and systems to allow, in one embodiment, automatic access from one system to other systems which include an operating system that includes a user login process. In one embodiment, a method includes logging into, automatically in response to starting a first data processing system, a second data processing system at least as a guest user of the second data processing system which has a storage volume storing data and displaying a user interface object on a display device of the first data processing system, the user interface object corresponding to at least one of the second data processing system and the storage volume to allow at least one of a search to be performed or a browsing to be performed of the data stored on the storage volume.
Optimizing resource usage in systems which include heterogeneous devices, including sensors and smartphones
Managing devices in a system may comprise receiving information associated with a first device in the system and a first set of capabilities provided in the first device; receiving information associated with a second device in the system and a second set of capabilities provided in the second device; determining one or more required capabilities that need to be activated for the system, the system comprising at least the first device and the second device; for each of the one or more required capabilities, selecting automatically by a processor based on the information received and one or more criteria, which capability in the first device and the second device to activate to satisfy the one or more required capabilities; and activating said selected capability in the first device or the second device.
Using multiple traffic profiles to design a network on chip
The present application is directed to designing an efficient Network on Chip (NoC) interconnect architecture that is adaptable to varied interface protocols of different SoC components/hosts and is compliant to handle different types and models of traffic profiles. Aspects of the present application include a method, which may involve utilizing multiple traffic profiles described in a specification to generate a NoC that satisfies all the traffic profiles. Such a NoC interconnect architecture can be formed from multiple traffic profiles by generating a single consolidated traffic profile from individual or subset based dependency graphs of the multiple traffic profiles.
Configuring a wireless router
A method for configuring a wireless router includes electronically reading information that is unique to the wireless router. A code is automatically generated from the information. The generated code is automatically set as one or more of a network name and a device password for the wireless router.
Secure stacking setup
A method of configuring a stack includes: connecting stacking ports of a plurality of stackable devices using one or more stacking links; connecting a user console to a first one of the stackable devices; transmitting a stack setup command from the user console to the first stackable device; and establishing a stack in response to the stack setup command. The stack is established by initiating a discovery process with the first stackable device in response to the stack setup command, wherein the first stackable device requests and receives identifying information from the stackable devices over the stacking links during the discovery process. The topology of the stackable devices is displayed with the user console in response to the identifying information. The stackable devices are authenticated during the discovery process such that the stack setup is secure. The first stackable device becomes the active controller of the stack by default.
Proxy pair identification communication though separate proxy devices and paths
In one form of invention a process of operating a host computer coupled to a communications network including: determining whether a diversity flag is set, when a communications connection is requested; sending a request from the host computer to a proxy identification list server in a communications network for proxy pair identification information, when the diversity flag is set; receiving in the host computer the proxy pair identification information from the proxy identification list server in response to the host request; and wherein the sending includes communicating from the host computer to a destination computer though a first communication path that includes a first proxy device and though a second communication path, separate from the first communication path, that includes the second proxy device.
Network node apparatus system, apparatus, and method
Between network node apparatuses that operate as a duplex system, when a failure occurs in an information processing unit of one system, the service is maintained and continued in an information processing unit of the other system without interruption of the service. In a system using an active system network node apparatus 100-1 and a standby system network node apparatus 100-2 both in an operating state, a switch processing unit 110 has a transfer processing unit 112 that copies and transfers a packet flow to be a subject of information processing in the information processing unit 200 to two output destinations, when the switch processing unit operates as an active system. The information processing unit 200 has a mutual monitoring processing unit 203 that checks mutual operating states between the active system and the standby system, determines that a failure has occurred when the active system does not return a response and causes the standby system to operate as an active system, and a halt processing unit that, upon operation as the information processing unit of the standby system, halts output of a packet to be a subject of information processing.
Multipath fiber channel over ethernet networks
Embodiments include a system for implementing multipath selection of ethernet links in a fiber channel over ethernet (FCoE) network. A first VLAN defined a point-to-point path through the ethernet side of the network. A link failure in the first VLAN link is replaced by activating an alternate VLAN link corresponding to a new path through the ethernet side of the network while disabling all other VLANS corresponding to other paths through the ethernet side of the network. An advertisement is received from the origination SAN device on the fiber channel side of the network indicating a request for network access by the origination SAN device. Communications are enabled between the origination SAN device and the destination LAN device via the alternate VLAN link. Communications are then resumed between the origination SAN device and the destination LAN device utilizing the alternate VLAN link.
System and method for fuzzy concept mapping, voting ontology crowd sourcing, and technology prediction
The invention provides a system and method for providing ttx-based categorization services and a categorized commonplace of shared information. Currency of the contents is improved by a process called conjuring/concretizing wherein users' thoughts are rapidly infused into the Map. As a new idea is sought, a goal is created for a search. After the goal idea is found, a ttx is concretized and categorized. The needs met by such a Map are prior art searching, competitive environmental scanning, competitive analysis study repository management and reuse, innovation gap analysis indication, novelty checking, technology value prediction, investment area indication and planning, and product technology comparison and feature planning.
Method and apparatus for IUT in a wireless communication system
The present invention relates to a wireless communication system, and more particularly, to a method and apparatus for performing or supporting inter-UE transfer (IUT). The method for performing relevant IUT operations by first user equipment and second user equipment according to one embodiment of the present invention comprises: a step of receiving a message including an IUT request from the first UE; a step of transmitting information associated with the IUT request to a remote party; and a step of performing the IUT operation if the IUT request is granted by the remote party.
Emphasized signal point arrangement operation for compensating DC imbalance
A transmission apparatus configured to communicate with a reception apparatus. The transmission apparatus comprising a monitoring unit, a symbol-specifying unit, a signal point moving unit, and a transmission unit. The monitoring unit monitors a total amount of deviations of signal levels in signals forming transmission symbol strings. The symbol specifying unit specifies target symbols from the transmission symbol strings based on the total amount of deviations of the signal levels. The signal level is at an outermost position on an opposite side of a plurality of deviations of the signal levels. The signal point moving unit moves positions of signal points of the target symbols outward. The transmission unit transmits a signal forming a transmission symbol string including the symbols, in which the positions of the signal points are moved, to the reception apparatus.
In-phase and quadrature radio frequency digital-to-analog converter
Disclosed herein is an apparatus for radio frequency digital-to-analog conversion of in-phase and quadrature bit streams. The apparatus may include a plurality of in-phase multiplying cells that receive an in-phase local oscillator signal and a plurality of in-phase bits, a plurality of quadrature multiplying cells that receive a quadrature local oscillator signal and a plurality of quadrature bits, a first output line connected to a first set of the plurality of in-phase multiplying cells and a first set of the plurality of quadrature multiplying cells, and a second output line connected to a second set of the plurality of in-phase multiplying cells and a second set of the plurality of quadrature multiplying cells. Each multiplying cell produces an output signal based on a received input bit. The output signals from each multiplying cell combine in phase on the connected output line.
Data unit format for multi-user data in long-range wireless local area networks (WLANS)
A method includes receiving a data unit that includes a signal (SIG) field and a data field. The SIG field provides information for interpreting the data field. The method also includes detecting a first symbol constellation rotation of at least a first orthogonal frequency division multiplexing (OFDM) symbol in the SIG field of the data unit, determining, based at least in part on the detected first symbol constellation rotation, a number of information bits per OFDM symbol in the SIG field of the data unit, processing the SIG field of the data unit according to the determined number of information bits per OFDM symbol in the SIG field, and processing the data field of the data unit according to the information for interpreting the data field as provided in the SIG field of the data unit.
Apparatus for transmitting broadcast signals, apparatus for receiving broadcast signals, method for transmitting broadcast signals and method for receiving broadcast signals
A method and an apparatus for transmitting broadcast signals thereof are disclosed. The apparatus for transmitting broadcast signals, the apparatus comprises an encoder for encoding service data corresponding to each of a plurality of data transmission path, wherein each of the data transmission path carries at least one service component, an encoder for encoding signaling data, a frame builder for building at least one signal frame including the encoded service data, a modulator for modulating the at least one signal frame by an OFDM (Orthogonal Frequency Division Multiplex) scheme and a transmitter for transmitting the broadcast signals carrying the at least one modulated signal frame.
Extended guard interval for outdoor WLAN
In an method for generating a data unit for transmission via a communication channel, a data portion of the data unit is generated. Orthogonal frequency division multiplexing (OFDM) symbols of the data portion are generated using one of (i) a normal guard interval, (ii) a short guard interval and (iii) a long guard interval. A preamble of the data unit is generated. The preamble indicates whether at least OFDM symbols of the data portion are generated using the normal guard interval, the short guard interval, or the long guard interval. The data unit is then generated to include the preamble and the data portion.
Symbol detection for alleviating inter-symbol interference
A receiver is configured to perform symbol detection based on a total frequency domain received signal that comprises contribution from a block of time domain symbols. The receiver is configured to divide the block into plural sub-blocks, and for each sub-block to jointly detect the symbols of the sub-block while treating symbols of the block which are outside of the sub-block as noise.
Equalizer-compensated AC-coupled termination
AC-coupled termination and equalization, including transmit equalization and/or receive equalization, are combined to create a high bandwidth channel that requires no special coding and consumes no or negligible DC current.
Receiver having limiter-enhanced data eye openings
A communication system having a receiver with a linear path and a nonlinear path. As the receiver receives a data signal, it adaptively equalizes the received signal, and amplitude-limits the equalized signal in the nonlinear path using a saturable amplifier limiter or the like. A slicer extracts data from the limited equalized received signal. In the linear path, a clock recovery circuit generates a clock signal from the equalized received signal. A delay circuit in the linear path at least partially compensates for propagation delay in the limiter. Having the clock recovery occur in other than the nonlinear path, a low jitter clock is generated. The limiter enhances the vertical opening of the data eye by increasing the rise and fall times of the limited signal, providing more noise margin for the slicer to operate with and a greater timing margin in which to sample the sliced data.
Apparatus and method for estimating doppler spread in mobile communication system
An apparatus and a method for estimating a Doppler frequency in a mobile communication system are provided. The apparatus includes an estimator for temporarily estimating a maximum Doppler frequency based on channel values sampled according to a first period in a frame, a detector for calculating at least one correlation value between at least one channel value additionally sampled in the frame and at least one channel value sampled over the first period, and for determining whether aliasing occurs based on the correlation value, and a determiner for determining a final maximum Doppler frequency according to the occurrence or non-occurrence of the aliasing.
Method and apparatus for LTE channel state information estimation
A method, computer program, device and system are provided for determining channel state information for use in a wireless communications network. The channel state information includes a rank indicator (RI), precoding matrix index (PMI) and channel quality indicator (CQI). The RI, PMI or CQI can be determined based on channel covariance estimation and the Taylor series approximation of its inverse. Further, the RI and PMI can be determined separately.
Among other things, from content of a communication composed by a user, a strategy is inferred for selecting target information related to the content. The strategy is used to select target information from a body of target information. And information about the selected target information is reported to the user.
Host network accelerator for data center overlay network
A high-performance, scalable and drop-free data center switch fabric and infrastructure is described. The data center switch fabric may leverage low cost, off-the-shelf packet-based switching components (e.g., IP over Ethernet (IPoE)) and overlay forwarding technologies rather than proprietary switch fabric. In one example, host network accelerators (HNAs) are positioned between servers (e.g., virtual machines or dedicated servers) of the data center and an IPoE core network that provides point-to-point connectivity between the servers. The HNAs are hardware devices that embed virtual routers on one or more integrated circuits, where the virtual router are configured to extend the one or more virtual networks to the virtual machines and to seamlessly transport packets over the switch fabric using an overlay network. In other words, the HNAs provide hardware-based, seamless access interfaces to overlay technologies used for communicating packet flows through the core switching network of the data center.
Non-fragmented IP packet tunneling in a network
A method and apparatus is disclosed herein for IP packet tunneling in a network. In one embodiment, the method comprises receiving, at a first network device, a first IP packet of a IP connection; creating a second IP packet by replacing information in a field in the first IP packet with a session ID identifying the IP connection; and forwarding, by the first network device, the second IP packet to the second network device in the distributed network environment.
Selecting between contending data packets to limit latency differences between sources
An arbiter is configured to select one of several contending data packets transmitted from an initiator, the data packets comprising an identifier identifying the initiator and data. The arbiter comprises: a history buffer for storing the identifiers identifying the initiators of a plurality of recently selected data packets; and selection circuitry configured to select one of the contending data packets in dependence upon the initiators of the contending data packets and the initiators identified in the history buffer, such that a probability of a data packet being selected increases with the number of data packets selected since a data packet from the same initiator was selected.
Method and apparatus for transmitting multimedia broadcast data in wireless communication system
A base station and method for use in a wireless system are provided. The method includes receiving, by a base station, one or more service data unit (SDUs) from a core network node; receiving, by the base station, a control message including respective length information of the one or more SDUs from the core network node; and processing, by the base station, the one or more SDUs, based on the length information included in the control message. The control message is transmitted after the one or more SDUs are transmitted from the core network node.
Method and arrangement for efficient group communication
In a method of enabling improved group communication for a plurality of mobile terminals MT participating in a multicast session in a communication system comprising a plurality of cells and at least two base station systems with corresponding cell coverage, reducing S1 mandatory paging signalling from said mobile terminals and said network, by maintaining said network and said mobile terminals in an active state, and limiting S2 cell update signalling in response to one of said plurality of mobile terminal moving from one cell to a new cell.
Adaptive connectivity in network-based collaboration
Various embodiments include at least one of systems, methods, software, and data structures for peer-to-peer exchange of at least a portion of networked collaboration session data. Client and server solutions allow for switching between peer-to-peer and server-centric modes of collaboration data sharing. Some embodiments also allow for sharing of data of a first type via a collaboration server and data of a second type via peer-to-peer connections.
Optical cable assemblies with low-speed data pass-through architecture and sleep mode operation
Optical cable assemblies, optical engines, and methods for transitioning into and out of a sleep mode are disclosed. In one embodiment, a method of operating a sleep mode of an optical cable assembly includes receiving a sleep trigger, and for a time T1, turning a laser of an optical transmit (Tx) lane of an optical transceiver device on or off, and providing a fixed logical high or a fixed logical low on low-speed receive (Rx) line of the optical cable assembly based on a connection state of an electrical connector of the optical cable assembly. The method further includes, after the time T1, turning off the laser of the optical Tx lane, placing one or more components of the optical transceiver device into a low-power state, and periodically transmitting an optical intra-cable signal from the optical transceiver device over optical fiber to a far end of the optical cable assembly.
Methods and devices for monitoring the integrity of an article during transporting said article
The method for obtaining information relating to the integrity of an article (2) as assessed from an exposure of said article (2) to physical or environmental conditions during a time span during which said article (2) is transported comprises a) providing a device (1) to be located in proximity to said article (2) during said transport, digital certificate data (C) and first digital private key data (K1*) being stored in said device (1); d) storing in said device (1) data (I) related to said physical or environmental conditions, said data being referred to as integrity data (I); e) creating within said device (1) first digitally signed data (DS1) by digitally signing data comprising said integrity data (I) and said digital certificate data (C), using said first digital private key data (K1*); f) storing said first digitally signed data (DS1) in said device (1). A high degree of security against malpractice and data falsification can be achieved. A corresponding device (1) is also presented.
Utilization of a protected module to prevent offline dictionary attacks
Various technologies pertaining to authenticating a password in a manner that prevents offline dictionary attacks are described. A protected module, which can be a hardware security module, a trusted platform module, or the like, is in communication with an authentication server. The protected module comprises a key that is restricted to the protected module. The key is employed in connection with authenticating the password on the protected module.
Countering server-based attacks on encrypted content
Embodiments of the present invention relate to providing encrypted content to authorized content consumers while providing robust traitor tracing. In one embodiment, a key bundle comprising at least one device key is read. A key block is read. A media key precursor is determined from the key block and the at least one device key. A security program is read. At least one encrypted block key is read. The security program is executed to determine a decrypted block key from the media key precursor and the encrypted block key. Encrypted content is read. The decrypted block key is applied to the encrypted content to obtain decrypted content.
Technologies for synchronizing and restoring reference templates
Generally, this disclosure describes technologies for restoring and/or synchronizing templates such as biometric templates to/among one or more client devices. In some embodiments one or more client devices may register with a synchronization server and provide encrypted copies of their reference templates to the server. In a restoration operation, the synchronization server may provide an encrypted copy of a client's reference template(s) to the client, which may decrypt them in a protected environment. In a synchronization operation, the synchronization server may provide encrypted copy of a first client's template(s) to a plurality of second clients. The second clients may then decrypt the encrypted template(s) within a protected environment using an appropriate decryption key.
Method and system for conditional access to a digital content, associated terminal and subscriber device
The invention relates to a method and a system for conditional access making it possible to prevent the fraudulent use of a subscriber electronic device (1a, 1b, 1m) and to thus effectively combat the fraudulent making available of protected contents. The invention further relates to the adaptation of such a device as well as to a method allowing the revocation of the latter if it is deemed to be illicitly exploited or its possible reinstatement.
Detection of stale encryption policy by group members
Various techniques that allow group members to detect the use of stale encryption policy by other group members are disclosed. One method involves receiving a message from a first group member via a network. The message is received by a second group member. The method then detects that the first group member is not using a most recent policy update supplied by a key server, in response to information in the message. In response, a notification message can be sent from the second group member. The notification message indicates that at least one group member is not using the most recently policy update. The notification message can be sent to the key server or towards the first group member.
Communication apparatus and communication method
In general, according to one embodiment, a communication apparatus includes an obtaining unit, generation unit, and communication unit. The obtaining unit obtains a master key from a first communication apparatus. The generation unit generates an individual key using the master key. The communication unit communicates with a second communication apparatus using the individual key.
Method, system and program product for secure storage of content
A method, system and program product comprise obtaining a user's username and password. A random key is generated for use as a master key. The master key is encrypted using the password to create an encrypted master key. A hash function is performed on the password to create a password hash. A random key is generated for use as a content key for encrypting the user's selected content. The content key is encrypted using the master key to create an encrypted content key. The selected content is encrypted using the content key to create encrypted content. The username, password hash, encrypted master key, first encrypted content key, and encrypted content is communicated to a server for storage in the user's account in which the possibility of decrypting at least the encrypted content by operations on the server is mitigated.
Method and apparatus to encrypt plaintext data
Disclosed is an apparatus and method for encrypting plaintext data. The method includes: receiving at least one plaintext data input; applying a Nonce through a function to the at least one plaintext data input to create Nonced plaintext data outputs and/or to intermediate values of a portion of an encryption function applied to the at least one plaintext data input to create intermediate Nonced data outputs; and applying the encryption function to at least one of the Nonced plaintext data outputs and/or the intermediate Nonced data outputs to create encrypted output data. The encrypted output data is then transmitted to memory.
System and method for generating an essentially sinusoidal synchronization pulse
A reception system for a control unit in a vehicle having a voltage generator for generating a synchronization pulse which generates the synchronization pulse within predefined specification limits and having a predefined shape and a predefined time behavior, the reception system outputting the synchronization pulse for synchronizing a signal transmission via a data bus to at least one sensor, and a method for generating such a synchronization pulse. The voltage generator includes a voltage amplifier which generates the synchronization pulse generally as a sinusoidal oscillation based on a reference voltage.
Method and apparatus for allocating resource of multiple carriers in OFDMA system
A resource allocation method and apparatus for an OFDMA-based mobile communication system that allows allocating resources of multiple carriers is provided. A Physical Downlink Control Channel (PDCCH) transmission method for allocating resources in multiple frequency bands of a mobile communication system based on an Orthogonal Frequency Division Multiple Access (OFDMA) according to the present invention includes generating and transmitting, at a base station, multiple PDCCHs for allocating resources in the multiple frequency bands using Control Channel Element (CCE) indices; and receiving and demodulating, at a user equipment, the multiple PDCCHs transmitted by the base station and locating the resources allocated in the multiple frequency bands using the CCE indices of respective PDCCHs. A Physical Downlink Control Channel (PDCCH) transmission apparatus for allocating resources in multiple frequency bands of a mobile communication system based on an Orthogonal Frequency Division Multiple Access (OFDMA) according to the present invention includes a base station apparatus which generates and transmits multiple PDCCHs for allocating resources in the multiple frequency bands using Control Channel Element (CCE) indices; and a user equipment which receives and demodulates the multiple PDCCHs transmitted by the base station and locates the resources allocated in the multiple frequency bands using the CCE indices of respective PDCCHs.
Method and apparatus for aggregating acknowledgments transmitted by an access point to a plurality of client stations in a wireless network
An AP including a MAC module to designate a predetermined time period to communicate with a plurality of client stations associated with the AP via a channel. The MAC module instructs remaining client stations associated with the AP to not transmit data during the predetermined time period. The MAC module receives, during the predetermined time period, data transmitted by the plurality of client stations without sensing the channel, and receives, at a time other than the predetermined time period, data transmitted by the remaining client stations by sensing the channel. An acknowledgment generating module generates acknowledgements in response to receiving data from the plurality of client stations. The MAC module aggregates the acknowledgements in a single aggregated frame, which includes a plurality of sub-frames, each sub-frame including one of the acknowledgements. The MAC module transmits the single aggregated frame to the plurality of client stations during the predetermined time period.
Method and device for use in frame acknowledgement
Provided in the present invention are a method and device for use in frame acknowledgement. The method comprises: bearing an immediate acknowledgement instruction into a data frame, the immediate acknowledgement instruction is for use in instructing an immediate return frame acknowledgement response; and transmitting the data frame having the immediate acknowledgement instruction attached thereto.
Method and system for inter-cell interference coordination in wireless networks
A method, system, and non-transitory computer-readable storage medium for managing inter-cell interference in a wireless network is provided. The method may be executed by at least one processor at a small cell gateway and may include receiving, uplink interference power corresponding to a first small cell base station (SCBS). The method may further include receiving neighboring cell information of the first SCBS, the neighboring cell information including information on a first plurality of SCBSs neighboring the first SCBS. The method may further include determining based on the received uplink interference power, that the first SCBS is experiencing inter-cell interference and determining a second plurality of SCBSs from among the first plurality of SCBSs that are interfering with the first SCBS. The method may further include adjusting uplink power allocation corresponding to a second SCBS from among the second plurality of SCBSs.
Multi-carrier operations with fast frequency hopping
A method of wireless communication includes receiving by a single RF receiver of a user equipment (UE) a first portion of a downlink transmission from an eNode B (eNodeB) on a downlink primary carrier during at least one periodic subframe of the downlink primary carrier. The method also includes receiving by the single RF receiver a second portion of the downlink transmission from the eNodeB on the secondary downlink carrier. The reception occurs during a periodic sequence of subframes of the secondary downlink carrier following the at least one periodic subframe of the downlink primary carrier and before a second periodic subframe of the downlink primary carrier.
Multicarrier communication system employing explicit frequency hopping
Variable bandwidth assignment and frequency hopping are employed to make efficient use of radio resources. Variable bandwidth assignment is achieved by dynamically allocating different numbers of subcarriers to different mobile terminals depending on their instantaneous channel conditions. The frequency hopping patterns are determined “on-the-fly” based on the current bandwidth assignments. The bandwidth assignments and frequency hopping patterns are signaled to the mobile terminals in a scheduling grant.
Automated cloud resource trading system
Methods and apparatus for an automated cloud resource trading system are disclosed. A system includes a plurality of resource instances, a resource manager, and a pricing optimizer. The resource manager receives an indication that a client has opted in for automated implementation of recommendations from the pricing optimizer. In response to the opt-in indication, and a recommendation generated by the pricing optimizer based at least in part on an analysis of the client's resource usage and the pricing of instances reserved for the client, the resource manager includes a particular resource instance currently reserved for the client in a listing of instances available for reservation by other clients.
Methods and arrangements for early HARQ feedback in a mobile communication system
A receiving node makes an early estimate of the outcome of a decoding attempt and sends a corresponding early feedback (EHF) to the sending node. This has an effect of enabling a fast retransmission of the data by the sending node in case the decoding by the receiving node is likely to fail. An advantage of this is that any delays due to data retransmission may be minimized, resulting in a higher average throughput of the data transmission between the nodes.
Enabling and disabling integrity protection for data radio bearers
The present invention relates to a method in a receiving node and a sending node of a wireless communications system for enabling and disabling integrity protection of at least one data radio bearer between the sending node and the receiving node. The method in the receiving node comprises, following a successful connection re-establishment between the sending node and the receiving node, receiving a connection reconfiguration message from the sending node, the connection reconfiguration message comprising an indicator indicating which ones of the at least one data radio bearers that shall have enabled integrity protection. It also comprises enabling integrity protection of packets on the at least one data radio bearer indicated by the indicator, and disabling integrity protection of packets on the rest of the at least one data radio bearers.
Configurable acknowledgement processing in a wireless communication system
Techniques for sending and receiving acknowledgement (ACK) information in a wireless communication system are described. A base station sends control information and data to a user equipment (UE) and receives ACK information from the UE. The base station performs detection for the ACK information based on (i) a first hypothesis for the control information being missed by the UE and (ii) a second hypothesis for the control information being received correctly by the UE. In one design, the ACK information may have a variable size, and the base station may perform detection for the ACK information based on different block codes for the first and second hypotheses. In another design, the ACK information may have a fixed size, and the base station may perform detection for the ACK information based on a single block code and obtain a fixed number of bits for the ACK information for both hypotheses.
Time-slot based multiple ACK/NACK transmission
A method of transmitting ACK/NACK (Acknowledgement/Negative-ACK) signal by a user equipment in a wireless communication system comprises receiving a plurality of data unit from a base station; reserving a plurality of physical uplink control channel (PUCCH) resources corresponding to the plurality of data units within a subframe having a plurality of slots; and transmitting one or more ACK/NACK signals for the plurality of data units to the base station by using at least part of the plurality of PUCCH resources reserved within the subframe, wherein the PUCCH resources through which the one or more ACK/NACK signals are transmitted are selected independently per slot.
Device and method for determining high speed shared control channel in a communication terminal
An apparatus and method for detecting high speed shared control channel of a communication terminal is provided, which recognizes decoding reliability for each of high-speed shared control channel by decoding each of a plurality of high-speed shared control channels; decides a maximum and a minimum in the decoding reliability, calculates a difference between the maximum and the minimum to compare the calculated difference with a preset critical value; and detects and processes a high-speed shared control channel corresponding to the maximum, when the difference exceeds the critical value. Accordingly, even though the wireless environment is inferior, the decoding reliability of an HS-SCCH can be more accurately decided in an HS-SCCH detection apparatus of the communications terminal and the detection performance of the HS-SCCH can be improved in a communication terminal.
Maximum-likelihood decoder in a memory controller for synchronization
Described herein are apparatus, system, and method for data synchronization via a maximum-likelihood decoder in a memory controller. The method comprises receiving a constrained codeword from a non-volatile memory (NVM) via a channel, the constrained codeword including an appended bit-stream; and decoding the received constrained codeword by reconstructing the appended bit-stream and invoking a synchronization procedure that applies a maximum-likelihood (ML) estimator to estimate locations of any insertion, deletion, or error in the reconstructed appended bit-stream.
Reception of co-channel signals
System (100) and methods (3500) for receive processing of a burst communication system where co-channel signals (318) collide in a receiver (150). The methods comprise: simultaneously receiving co-channel signals (2002, 2004, 2006) transmitted from remote transmitters (104-112) at a first frequency; and independently performing a first iteration of a Turbo MUD process for a first co-channel signal and a second co-channel signal. The Turbo MUD process comprises: segmenting each of the first and second co-channel signals into a plurality of segments (2102, 2104, 2106) each having a unique SINR; computing a noise plus interference variance estimate for each segment; computing first bit likelihood values for each segment based on the noise variance estimate; computing second bit likelihood values for each segment based on the first bit likelihood values; and using the second bit likelihood values (i.e., soft in soft-out) to generate a first estimate of the first and second co-channel signals.
Variable rate coding for forward and reverse link
A technique for encoding a signal used in a digital communication system in which individual traffic channel data rates may be adapted to specific channel conditions. In particular, a forward error correction coding rate is adapted for individual channels while at the same time maintaining a fixed block size independent of the FEC coding rate. This allows the system data rate to adapt to the channel conditions experienced by a specific user. Thus, users experiencing good communication conditions with low multipath distortion may be allocated higher capacity, whereas users with significant multipath distortion may make use of lower rate (higher levels of coding) error codes to maintain high quality. Messages are sent from a transmitter to a receiver to inform the receiver of the coding rate implemented at any given point in time. These parameters may be adjusted independent of transmitted power level through the expedient of ensuring that size of a transmitted frame remains constant, while permitting the ability to change FEC coding rates and FEC block sizes.
Techniques for supporting relay operation in wireless communication systems
Techniques for supporting operation of relay stations in wireless communication systems are described. In an aspect, a base station may transmit data to a relay station in a portion of a subframe instead of the entire subframe. The relay station may transmit control information during part of the subframe. The base station may transmit data to the relay station during the remaining part of the subframe. In another aspect, a target termination for a packet may be selected based on data and/or ACK transmission opportunities available for the packet. One or more transmissions of the packet may be sent with HARQ, and ACK information may be sent for the packet. The packet may be transmitted such that it can be terminated prior to the first subframe (i) not available for sending the packet or (ii) available for sending ACK information.
Optical signal multiplexing method and optical multiplexer
Embodiments of the present invention relate to the optical communication field and disclose an optical signal multiplexing method and an optical multiplexer. The method provided in the present invention includes: adjusting polarization states of two of four optical signals to be multiplexed, and preferably, mutually orthogonal to, the polarization states of the remaining two optical signals; combining one optical signal in the adjusted polarization state with one optical signal in the unadjusted polarization state into one optical signal through polarization multiplexing; and combining the two optical signals obtained through polarization multiplexing into one optical signal. When multiplexing is performed according to the solutions of the present invention, all optical signals are multiplexed into one optical signal based on polarization multiplexing, optical paths traveled by different optical signals differ slightly, and the optical power and the optical field energy distribution differ slightly between different optical signals in the finally multiplexed optical signal.
Method and system to enhance management channels
Embodiments of the disclosure relate to a method and system for enhancing management channels. The method comprises operating TDM (Time Division Multiplex) clock frequency at a predefined rate higher than operating frequency based on available management channels. Transmitting data on the management channels using the TDM slots of a TDM based controller at a higher frequency rate.
System for providing interaction between a broadcast automation system and a system for generating audience interaction with radio programming
A software system is provided which links a broadcast station operating system or playback system via the internet to an external data source, such as a separate audience participation system for providing audience interaction with broadcast programming, and specifically radio programming to allow the automation system of the broadcast system operating system to play externally chosen; such as by audience participation, selections automatically and in real time.
Method and system to signal network information in TPS bits
Embodiments are directed to defining hierarchical digital broadcast transport streams as separate cells, which reduces the signaling in OSI layer 1, and removing use of sub-cells so that the coverage area of a transposer may be treated as a cell. In accordance with at least one embodiment, each hierarchical DVB-H stream (i.e., the HP stream and the LP stream) has its own separate dedicated “current signal” frame. This allows the streams to be independent of each other (even to belong to different networks). Furthermore, in accordance with the hierarchical signal arrangement, a cell can be uniquely identified by its network_id and cell_id. In accordance with at least one embodiment, frequency may be used as an additional identifier thereby allowing a first cell to be transposed to a sub-cell.
Method and device for controlling the broadcasting of audio contents by two loudspeakers
The broadcasting of audio contents by two loudspeakers is controlled by delivering a first audio content to the two loudspeakers and a further processing in which an auxiliary audio content is received. A second audio content is formed by temporally delaying the auxiliary audio content with a delay dependent on the spacing between the loudspeakers and on a distance between a first loudspeaker and a spot located in front of this first loudspeaker. The second audio content is delivered to the first loudspeaker. A third audio content is formed by inverting the auxiliary audio content. The third audio content is then delivered to the second loudspeaker.
Method of controlling a wireless audio signal
A method of controlling a wireless audio signal in order to avoid frequency interference between a display apparatus with a multi-view function and glasses with a function of receiving a wireless audio signal is provided.The method of controlling a wireless audio signal in a wireless audio signal transmitting device includes: pairing with a wireless audio signal receiving device using a first frequency band; detecting frequency interference by an external device other than the paired wireless audio signal receiving device; scanning a frequency when frequency interference is detected; determining whether a frequency change is needed using information related to the scanned frequency; and changing an audio signal transmitting frequency when frequency change is needed.
Method for processing data in an optical network element and optical network element
A method for processing data in an optical network element is provided, wherein a multicarrier signal is linear pre-coded, and wherein the linear pre-coded signal is modulated. An according optical network element is also suggested.
Network monitoring using thin film splitters and avalanche photodiode detectors in multimode application
A network monitoring system for a multimode optical data network includes a filter based splitter and an avalanche photodiode detector-based detection subsystem. The system takes a very small amount of the energy from the main data stream to use as monitoring data signal. The filter based splitter operates in a manner that is fairly uniform among modes and permits very low energy levels to be diverted for monitoring without disrupting either the main or monitor data streams for any modes.
System and method for providing active RF shielding
A system and method for removing radio frequency emissions from an electronic device. The system comprises collectors for collection of the radio frequency signals, combiners for combining the signals to produce a combined signal, fiber optic transmitter for up-converting the combined radio frequency signals to an optical wave length signal, optical fiber for directing the optical signal, and a heat sink for terminating the optical signal.
Device, method, and system of communicating via relay device, and recording medium storing communication control program
In a communication system, one of a plurality of relay devices is assigned to a communication device that communicates with a counterpart communication device. When an instruction for selecting a communication method is received, one of the plurality of relay devices capable of communicating with the communication device using the selected communication method is assigned to the communication device.
Methods, devices, and computer program products improving mobile communication
A system for use in a mobile device comprises: a switch unit configured to switch a common connection of a transmitter and a first receiver from a first antenna to a second antenna and a connection of a second receiver from the second antenna to the first antenna; and a processing system configured to receive at least two reception signals from the first and second receivers; in response to receiving the two reception signals, evaluate a communication link via the first and second antennae; based on the evaluation of the communication link, determine that the transmitter needs to transmit via the second antenna; obtain reception parameters used by said first and second receivers; cause the switch unit to switch the common connection of the transmitter and a first receiver so that the transmitter transmits via the second antenna; and exchange reception parameters between the at least two receivers.
Method and apparatus for transceiving for beam forming in wireless communication system
An electronic device for beamforming and a method thereof in a wireless communication system are provided. The electronic device includes a plurality of antennas. The electronic device also includes a plurality of transmitter and receiver switches connected to the antennas and configured to select a plurality of transmission paths and a plurality of reception paths. The electronic device further includes a plurality of first Phase Shifters (P/Ss) configured to shift a phase of Radio Frequency (RF) signals received via the antennas and the transmitter and receiver switches. The electronic device includes a combiner configured to combine the phase-shifted RF signals to one RF signal. The electronic device also includes a quadrature signal generator configured to generate a quadrature signal. The electronic device further includes a down-mixer configured to convert the quadrature signal and the combined RF signal to a first baseband signal and configured to output the first baseband signal to a modem. The electronic device includes a controller configured to control the transmitter and receiver switches, the first P/Ss, and a plurality of second P/Ss to determine a transmission or reception mode of the transmitter and receiver switches, and the phase of the RF signals transmitted and received.
Embodiments of the present invention provide a transmitter including a plurality of amplifier circuits, a plurality of antennas adapted to have different main transmit directions and a transformation unit. The transformation unit includes a plurality of inputs connected to the plurality of amplifier circuits and a plurality of outputs connected to the plurality of antennas. The transformation unit is configured to transform a plurality of amplified transmit signals present at the plurality of inputs into a combined power transmit signal and to provide the combined power transmit signal at one of the plurality of outputs.
Uplink signal transmission and reception using optimized rank 3 codebook
A method for transmitting and receiving uplink signals using an optimized rank 3 codebook is disclosed. The optimized rank 3 codebook includes 6 precoding matrix groups, each of which has 1 variable having an amplitude of 1. Preferably, the optimized 4Tx rank 3 codebook has 12 precoding matrix, two precoding matrixes are selected from each the above 6 precoding matrix groups considering chordal distance and the number of precoding matrix.
Low complexity soft output MIMO decoder
A method and processing block for receiving data transmitted in a MIMO system is provided. Data is transmitted as a transmit vector of values from multiple transmitting antennas and received as a receive vector of values at multiple receiving antennas. Candidate vectors are determined based on each of a plurality of constellation points of the constellation configuration used in the transmission scheme. A channel matrix is decomposed into a unitary matrix and a triangular matrix, such that a relationship links: (i) a function of the unitary matrix and the receive vector, and (ii) a multiplication of the triangular matrix and the transmit vector. A best candidate vector from the set of candidate vectors is utilized for the computation of soft bits representing the values of the transmit vector.
Wireless communication system for high-speed moving object that moves along fixed route
The present invention relates to a method in which a signal is transmitted between a base station and a terminal in a multi-antenna wireless communication system. The method transmits pre-estimated channel information to the terminal when the terminal moves to a specific position when channel estimation for a specific position is performed. As for the terminal which moves along a fixed route or the route of which can be estimated, the position of the terminal in the near future can be easily detected. Therefore, the transception of channel information can be performed in a more efficient manner in consideration of the above-described special environment.
Wireless transmission method, and wireless transmitter and wireless receiver
A wireless transmission method capable of transmitting a data stream by a wireless transmitter having a plurality of transmitting antennas, the wireless transmission method includes at the wireless transmitter, changing the number of candidates of selectable transmission beams to be formed for transmitting the data stream according to the number of transmission data streams, said transmission beams are formed by predetermined number of the plurality of transmitting antennas.
Apparatus and method for selecting beam in wireless communication system
An apparatus and a method for selecting a beam in a wireless communication system capable of forming a plurality of antenna beams are provided. The method for transmitting signals includes transmitting a training signal by using a plurality of first beams and a plurality of second beams, and transmitting at least one of user control information and data by using at least one fourth beam among a plurality of third beams.
Outdoor-indoor MIMO communication system using multiple repeaters and leaky cables
The invention relates to a wireless outdoor-indoor multiple-input multiple-output (MIMO) communications system for communicating with user equipment located inside a physical structure such as a building. The MIMO communication system is comprised of a node having at least two node antennas, wherein the node is configured for line of sight (LOS) wireless MIMO communication with at least two outdoor-indoor repeaters, and of at least two outdoor-indoor repeaters adapted for LOS wireless MIMO communication with the node. The repeaters have at least one repeater antenna each, provided outside the physical structure, for LOS MIMO communication with the node and at least one leaky cable each, provided inside the physical structure, for indoor MIMO communication with the user equipment located inside the physical structure. The repeaters are provided outside on the same physical structure and spaced well-apart, and each leaky cable of each repeater is provided such that they provide the same indoor coverage of the same interior space in the physical structure.
Enhanced inductive power and data transmission using hyper resonance
A method of wirelessly transmitting power or data is disclosed. The method may include the step of providing a transmitter including a driver coil and a first transmitter resonator coil. The driver coil may have a driver coil resonance frequency, and the first transmitter coil may have a first transmitter resonator coil resonance frequency. The method may further include the step of providing a receiver including a load coil having a load coil resonance frequency. Furthermore, the method may include tuning the first transmitter coil resonance frequency to be higher than both of the driver coil resonance frequency and the load coil resonance frequency.
Communication system, communication apparatus and communication method as well as program
A communication system, a communication apparatus, a communication method, and a program for acquiring the advantage of a plurality of communication protocols is provided. A random number and a first communication information including first identification information of a communication apparatus is sent to another communication apparatus by using near field communication. Second communication information is received by the communication apparatus from the other communication apparatus by using near field communication. The second communication information includes second identification information of the other communication apparatus necessary to a second communication. The second communication is performed between the communication apparatus and the other communication apparatus by using the second communication information received by using the near field communication.
Methods and arrangements for very large bandwidth operations
Logic may determine a first frame comprising a hopping pattern value and a target hopping time (THT). The hopping pattern may indicate a pattern of channels to which to hop. Logic may determine a clear-to-send (CTS) frame comprising a duration value indicative of a duration of a data transmission. Logic may transmit the first frame on at least a primary channel of the channels. Logic may transmit the CTS frame prior to transmitting the data transmission on the one or more channels in accordance with the hopping pattern, each channel having a bandwidth of at least 450 megahertz and being within in a 6 gigahertz to 10 gigahertz frequency band. Logic may receive a frame on at least a primary channel of the channels. Logic may receive CTS frames at the THT in accordance with the hopping pattern.
Mobile terminal, control method thereof, and non-transitory computer readable medium storing control program
A mobile terminal capable of being connected to a charger according to an exemplary embodiment includes a notification unit that notifies predetermined information by using at least one of an image, lighting, a sound, and a vibration, a charger detection unit that identifies a charger connected to the mobile terminal, and a control unit that controls the notification unit so that the notification unit provides a different notification to a user according to a type of the charger connected to the mobile terminal.
System and methods for improving page decode performance during reading of system information on a multi-SIM wireless communication device
Methods and devices are disclosed for enabling improved performance for page decodes on a SIM of a multi-SIM wireless communication device in which a shared radio frequency (RF) resource is used to read system information for a different SIM. After determining that a first SIM is using the shared RF resource to decode SIBs, the wireless device may receive information about an upcoming page decode time for monitoring a paging channel associated with the second SIM. The wireless device may obtain system information block (SIB) scheduling information associated with the first SIM, and may create a RF resource release gap during the system information read period based on the SIB scheduling information and the upcoming page decode time. Control of the RF resource may be released from the modem stack associated within the first SIM, and gained by a modem stack associated with the second SIM during the RF resource release gap.
Mixer sequence design for N-path filters
A bandpass filter includes a plurality of parallel paths, each receiving the input signal to the bandpass filter. Each path includes a first mixer, a low-pass filter, and a second mixer. The first mixer in each path is coupled to receive the input signal and mixes the input signal with a periodic mixer sequence having a period that is divided into a plurality of time slots. The mixer value is constant during each time slot. The low-pass filter in each path is operable to filter an output of the associated first mixer. The second mixer in each path is coupled to receive an output of the associated low-pass filter and mixes said filter output with a periodic mixer sequence having a period that is divided into a plurality of time slots, wherein again the mixer value is constant during each time slot. A summer sums the outputs of the second mixers of each of the paths to generate an output of the bandpass filter.
Digital radio frequency (RF) receiver
A digital RF receiver does not use a separate receiver according to a mode and a band for multi-mode reception, MIMO reception, and bandwidth extension reception, and changes only setting variables in a single receiver structure so as to implement multi-mode reception, MIMO reception, bandwidth extension reception, and/or simultaneous multi-mode operation, such that complexity of the receiver, development cost, and power consumption can be reduced.
Test signal generator for low-density parity-check decoder
A method for estimating error rates in low-density parity check codes includes calibrating an encoder according to specific channel parameters and according to dominant error events in the low-density parity-check code. Dominant codewords are classified based on characteristics of each codeword that are likely to produce similar error rates at similar noise levels; codeword classes that produce the highest error rate are then tested. Error boundary distance is estimated using multiple binary searches on segments. Segments are defined based on codeword, trapping set and biasing noise components of the channel. To improve calculation speed the most significant subclasses of codewords, trapping sets and noise signals are used.
Dictionary-based compression method, dictionary-based decompression method and dictionary composing method
A dictionary-based compression method is disclosed and includes the following steps receiving digital data which include a plurality of data blocks; compressing the digital data according to a multilayer dictionary-based compression algorithm which includes a first, a second and a third dictionary-based compression algorithms. The first, second and third dictionary-based compression algorithms execute compression by a unit range of N data blocks, a unit range of M data blocks and a unit range of L data block(s) respectively, in which N, M, L are integers not greater than the number of the total data blocks. N is greater than M, and M is greater than L.
Field level compression in parallel data flows
According to one embodiment of the present invention, a system selectively compresses data fields in a parallel data flow. The system identifies within an execution plan for the parallel data flow a first instance of a data field within a stage of the parallel data flow. The system traces the identified data field through stages of the parallel data flow and determines a score value for the identified data field based on operations performed on the identified data field during traversal of the stages. The system compresses the identified data field based on the score value indicating a performance gain with respect to the compressed data field. Embodiments of the present invention further include a method and computer program product for selectively compressing data fields in a parallel data flow in substantially the same manners described above.
Method for improving the accuracy of an exponential current digital-to-analog (IDAC) using a binary-weighted MSB
A method for the design synthesis of an exponential current digital-to-analog (IDAC) using a binary-weighted MSB. The design synthesis involves defining an exponential LSB and exponential MSB current mirrors according to a defined methodology. A method to achieve an exponential current digital-to-analog converter (IDAC) having improved accuracy using a binary-weighted most significant bit (MSB) comprising (1) defining a differential non-linearity (DNL); (2) defining number of LSB bits needed for the targeted DNL with a binary weighted MSB; (3) calculating the number of bits to be used for the binary-weighted MSB to get the desired IDAC base; (4) deriving the minimum current for the Imax; (5) defining the LSB as an exponential current mirror according to the specified relationship for the ILSB; and (6) defining a binary-weighted MSB according to the specified relationship for IMSB.
Energy-efficient time-stampless adaptive nonuniform sampling
Described herein is a sampling system and related sampling scheme. The system and sampling scheme is based upon a framework for adaptive non-uniform sampling schemes. In the system and schemes described herein, time intervals between samples can be computed by using a function of previously taken samples. Therefore, keeping sampling times (time-stamps), except initialization times, is not necessary. One aim of this sampling framework is to provide a balance between reconstruction distortion and average sampling rate. The function by which sampling time intervals can be computed is called the sampling function. The sampling scheme described herein can be applied appropriately on different signal models such as deterministic or stochastic, and continuous or discrete signals. For each different signal model, sampling functions can be derived.
Methods and systems for reducing order-dependent mismatch errors in time-interleaved analog-to-digital converters
A time-interleaved analog-to-digital converter (ADC) uses M sub-analog-to-digital converters (sub-ADCs) to, according to a sequence, sample an analog input signal to produce digital outputs. When the M sub-ADCs are interleaved, the digital outputs exhibit mismatch errors between the M sub-ADCs due to mismatches between the sub-ADCs. A more second order subtle effect is that the mismatch error for a particular digital output from a particular ADC, due to internal coupling or other such interaction and effects between the M sub-ADCs, can vary depending on which sub-ADC(s) were used before and/or after the particular sub-ADC. If M sub-ADCs are time-interleaved randomly, the mismatches between the M sub-ADCs become a function of the sub-ADC selection pattern in the sequence. The present disclosure describes mechanisms for measuring and reducing these order-dependent mismatches to achieve high dynamic range performance in the time-interleaved ADC.
Remote media IMS sessions
A system and method is provided for remote session control of IP Multimedia Subsystem (IMS) sessions. A remote media flow may be established as part of an origination process wherein the controller UE requests that the media flow is established on a remote media UE as part of the origination request. A remote media flow may also be established as part of a termination process wherein the controller UE identified in the termination request identifies a remote media UE on which a remote media is to be established. Embodiments also allow for the session control to be transferred from a first device to a second device, while maintaining one or more media flows on the first device.
Phase locked loop circuit, phase locked loop module, and phase locked loop method
Provided is a phase locked loop circuit that includes: a phase comparison section configured to compare a phase of a first clock signal and a phase of a second clock signal; a loop filter configured to generate a control voltage based on a comparison result by the phase comparison section; and a clock signal generation section configured to generate a clock signal having a frequency corresponding to the control voltage, and output the clock signal as the second clock signal. The loop filter includes a first resistor inserted between a first node on a signal path and a second node, a first capacitor inserted between the second node and a first DC power supply, a first switch inserted between the second node and a third node on the signal path, and a second capacitor inserted between the third node and a second DC power supply.
Phase-locked loop circuit with improved performance
A phase-locked loop circuit includes a phase detector, a charge pump, a capacitor, and a capacitor multiplier. The phase detector receives a reference frequency and a feedback frequency to generate a up/down signal. The charge pump, which includes a positive node and a negative node, receives the up/down signal to generate a first current. The capacitor is coupled to the negative node. The capacitor multiplier, coupled to the negative node, generates a second current which is the first current divided by a first scaling number.
Method for adjusting an excitation frequency of an oscillating circuit of a corona ignition device
A method for setting adjusting frequency of an electric oscillating circuit of a corona ignition device. The circuit is excited with a starting value (f1) of the excitation frequency and a reference value (IR) of a frequency-dependent variable is measured. The excitation frequency is incrementally changed. After every increment a value (I) of the frequency-dependent variable is measured and it is determined whether the measured value (I) deviates significantly from the reference value (IR). Depending upon the measured value (I) relative to the reference value, the value (f) of the excitation frequency is either set as the new starting value (f1) or stored as a boundary value. Further incremental changes to the excitation frequency are made in one of two directions and further comparisons of the values I and IR are performed. Ultimately, the excitation frequency can be set to a mean value between first and second boundary values.
Frequency tuning system and method for finding a global optimum
A generator and method for tuning the generator are disclosed. The method includes setting the frequency of power applied by the generator to a current best frequency and sensing a characteristic of the power applied by the generator. A current best error based upon the characteristic of the power is determined, and the frequency of the power at the current best frequency is maintained for a main-time-period. The frequency of the power is then changed to a probe frequency and maintained at the probe frequency for a probe-time-period, which is less than the main-time-period. The current best frequency is set to the probe frequency if the error at the probe frequency is less than the error at the current best frequency.
Hybrid synchronous/asynchronous counter
A hybrid counter generates a multi-bit hybrid counter value. The hybrid counter includes two or more asynchronous counters, each configured to generate a subset of the bits of the multi-bit hybrid counter value. The asynchronous counters are interconnected by a logic gate and a clock gating circuit. The logic gate generates an asynchronous logic value based on the bits generated by the previous asynchronous counters. The clock gating circuit re-times the asynchronous logic value to generate a synchronous logic value that is used to toggle the next asynchronous counter. The hybrid counter functions more accurately than conventional asynchronous counters and with less power than conventional synchronous counters.
Method and apparatus for providing a differential output driver with a cross-coupled cell
An integrated circuit and method for providing a differential transmission line driver are disclosed. One embodiment of the differential transmission line driver comprises a current mode logic (CML) stage, and a cross-coupled n-channel enhancement type metal-oxide semiconductor field-effect transistor (NMOS) stage, wherein the cross-coupled NMOS stage provides a feedback current to the CML stage, where each output voltage of the differential transmission line driver is characterized by symmetrical rising and falling edges.
Stage circuit and scan driver using the same
A stage circuit includes a first driver, a second driver, a first output unit and a second output unit. The first driver controls voltages of first and second nodes, according to a first power source, a start signal or a carry signal of a previous stage supplied to a first input terminal, a first clock signal supplied to a second input terminal, and a second clock signal supplied to a third input terminal. The second driver controls a voltage of a third node, according to the first power source, a start signal or a carry signal of a previous stage supplied to a first input terminal, a carry signal of a next stage supplied to a fourth input terminal, and the voltage of the second node.
Voltage-driver circuit with dynamic slew rate control
A system for circuit for generating an output signal with a dynamically adjustable slew rate includes a sampler, an envelope detector, an envelope comparison and control circuit, and a voltage-driver circuit that includes output buffers for generating the output signal. The sampler generates a sampled signal indicative of the slew rate of the output signal. The envelope detector generates an envelope detection signal indicative of a peak value of the sampled signal. The envelope comparison and control circuit compares a voltage level of the envelope detection signal with various threshold voltage levels, and generates control signals. The voltage-driver circuit controls the operation states of the output buffers based on the control signals to dynamically adjust the slew rate of the output signal.
Method and circuit for injecting a precise amount of charge onto a circuit node
A method and circuit for injecting charge into a circuit node, comprising (a) resetting a capacitor's voltage through a first transistor; (b) after the resetting, pre-charging the capacitor through the first transistor; and (c) after the pre-charging, further charging the capacitor through a second transistor, wherein the second transistor is connected between the capacitor and a circuit node, and the further charging draws charge through the second transistor from the circuit node, thereby injecting charge into the circuit node.
To provide a semiconductor device which can perform a scan test and includes a logic circuit capable of reducing signal delay. The semiconductor device includes a combinational circuit, sequential circuits each holding first data supplied to the combinational circuit or second data output from the combinational circuit, first memory circuits each holding first data supplied to the corresponding sequential circuit and holding second data output from the corresponding sequential circuit, and second memory circuits electrically connecting the first memory circuits in series by supplying the first data or second data supplied from one of the first memory circuits to another one of the first memory circuits. The second memory circuit includes a first switch controlling supply of the first data or second data to the node, a capacitor electrically connected to the node, and a second switch controlling output of the first data or second data from the node.
Physiological signal denoising
Physiological signals are denoised. In accordance with an example embodiment, a denoised physiological signal is generated from an input signal including a desired physiological signal and noise. The input signal is decomposed from a first domain into subcomponents in a second domain of higher dimension than the first domain. Target subcomponents of the input signal that are associated with the desired physiological signal are identified, based upon the spatial distribution of the subcomponents. A denoised physiological signal is constructed in the first domain from at least one of the identified target subcomponents.
CMOS RF switch device and method for biasing the same
According to certain aspects, a method includes determining whether to amplify a radio frequency (RF) signal by a first gain achievable by a first circuit or a second gain achievable by a second circuit, amplification of the first and second circuits respectively configured to be turned on or off by first and second switches, the first switch in the on state and the second switch in the off state resulting in the RF signal being amplified by the first gain, and the first switch in the off state and the second switch in the on state resulting in the RF signal being amplified by the second gain; and applying or inducing application of a first bias voltage or a second bias voltage to an isolated well of the first switch upon determination that the RF signal is to be amplified by the first gain or the second gain, respectively.
Duplexer with balun
A duplexer is proposed with a substrate which has at least one patterned metallization plane and on which, at least to some extent, a transmission path (TX) and a reception path (RX) are arranged, both of which are connected to an antenna connection (ANT). The duplexer comprises a transmission filter (TXF) which is arranged in the transmission path (TX) and which has a first acoustic wave filter (BAW1) with one or more resonators. Furthermore, the duplexer (DPL) comprises a reception filter (RXF) which is arranged in the reception path (RX) on the antenna side and which has a second acoustic wave filter (BAW2) with one or more resonators and also a single-ended output. In addition, the duplexer comprises, in the reception path (RX), a balun (BL) which is connected downstream of the reception filter (RXF) and the output of which delivers a balanced signal and which is in the form of an LC circuit, wherein at least one inductance and/or at least one capacitance of the balun (BL) are implemented in the patterned metallization plane of the substrate.
Reactance filter comprising suppression in the stop band and duplexer component
A reactance filter comprising suppression in the stop band comprises an input connection for applying an input signal, an output connection for outputting an output signal, at least series resonator, which is connected in a signal path between the input connection and the output connection, a parallel resonator, which is connected between the signal path and a connection in order to apply a reference potential, and an inductor, which is connected in series to the parallel resonator. A capacitor is connected by means of one connection between the at least one parallel resonator and the inductor and by means of the additional connection to the output connection. By connecting the reactance filter as a transmission filter in a duplexer component, the isolation in the receiving band of the duplexer component can be improved.
Bandpass filter implementation on a single layer using spiral capacitors
A planar capacitor includes, in part, a first metal line forming spiral-shaped loops around one of its end point, and a second metal line forming spiral-shaped loops between the loops of the first metal line. The first and second metal lines are coplanar, formed on an insulating layer, and form the first and second plates of the planar capacitor. The planar capacitor may be used to form a filter. Such a filter includes a first metal line forming first spiral-shaped loops, a second metal line forming second spiral-shaped loops, and a third metal line—coplanar with the first and second metal lines—forming loops between the loops of the first and second metal lines. The filter further includes a first inductor coupled between the first and third metal lines, and a second inductor coupled between the second and third metal lines.
Digital input circuit and method for high voltage sensors
A digital input circuit includes a series connection of a current limiter and a switch having a switch control input coupled between a signal input and ground, and a logic level shifter coupled to the signal input and having a switch control output coupled to the switch control input and a signal output, where a maximum amplitude at the signal input is greater than a maximum amplitude at the signal output. A digital input method includes coupling an input signal to ground with a current limiter by closing an electronic switch, providing an output signal responsive to the input signal, where a maximum amplitude of the input signal is greater than a maximum amplitude of the output signal, by latching the output signal while the input signal is above a threshold voltage and opening the electronic switch after the output signal is latched.
Low power, low out-of-band harmonic content radio
A radio that includes a transceiver to transmit and receive RF signals. The transceiver including a transmitter, a transformer, and a receiver, the transformer is coupled to and shared between the transmitter and the receiver. A resonator is formed by the combination of the transformer and capacitive elements of the transmitter and receiver.
Scalable periphery tunable matching power amplifier
A scalable periphery tunable matching power amplifier is presented. Varying power levels can be accommodated by selectively activating or deactivating unit cells of which the scalable periphery tunable matching power amplifier is comprised. Tunable matching allows individual unit cells to see a constant output impedance, reducing need for transforming a low impedance up to a system impedance and attendant power loss. The scalable periphery tunable matching power amplifier can also be tuned for different operating conditions such as different frequencies of operation or different modes.
Circuit and method for biasing a gallium arsenide (GaAs) power amplifier
A circuit for biasing a gallium arsenide (GaAs) power amplifier includes a reference voltage generator circuit implemented in a gallium arsenide (GaAs) material system, a field effect transistor (FET) bias circuit implemented in the gallium arsenide material system and adapted to receive an output of the reference voltage generator circuit and adapted to provide an output to a radio frequency (RF) amplifier stage.
Personal computer to output audio in a non-operative state
According to one embodiment, an electronic apparatus includes a terminal, an amplifier, a speaker, a power supply circuit and a first controller. The terminal configured to input an audio signal from an external device. The amplifier configured to amplify the audio signal. The speaker configured to output sound corresponding to the audio signal which is amplified by the amplifier. The power supply circuit configured to supply power to the amplifier. The first controller configured to control the power supply circuit to continue the supply of the power, when the electronic apparatus is in a non-operative state.
Fast-settling capacitive-coupled amplifiers
Fast-settling capacitive-coupled amplifiers are disclosed. The amplifiers use two Capacitive Coupled paths embedded in a Multipath Hybrid Nested Miller Compensation topology. One path is a direct high frequency path and the other path is a slower stabilization path. This combination results in a flat frequency response to and through the chopper frequency, and a fast settling response. Various exemplary embodiments are disclosed, including operational amplifier and instrumentation amplifier configurations.
RF power amplifier with PM feedback linearization
Circuitry, which includes a package interface, an RF amplification circuit, and a closed-loop phase linearization circuit, is disclosed. The package interface receives an RF signal and provides an amplified RF signal. The RF amplification circuit amplifies the RF signal to generate the amplified RF signal, such that an intermediate RF signal is generated during amplification of the RF signal. The closed-loop phase linearization circuit endogenously establishes a target phase of the amplified RF signal using the RF signal. Further, the closed-loop phase linearization circuit applies a phase-shift to the intermediate RF signal based on a difference between the target phase and a measured phase, which is representative of a phase of the amplified RF signal, wherein the phase-shift reduces phase distortion in the amplified RF signal.
Apparatus and methods for calibrating envelope trackers
Apparatus and methods for envelope tracking calibration are provided. In one embodiment, a power amplifier system includes a power amplifier, an envelope tracker that generates the power amplifier's supply voltage, a power detector, and a calibration module. The envelope tracker includes an envelope shaping table generated at a desired gain compression and a scaling module that scales an amplitude of an envelope signal. The power detector measures the power amplifier's output power, and the calibration module provides calibration data to the scaling module to change the scaling of the envelope signal's amplitude. The calibration module sets the calibration data to a first value corresponding to a supply voltage level associated with substantially no gain compression, and reduces the supply voltage level by changing the calibration data until the power detector indicates that the gain compression of the power amplifier is about equal to the desired gain compression.
Power amplifier transistor characteristic stabilization during bias switching
Communications equipment including communications equipment for wireless communications may benefit from power amplifier transistors having stabilized characteristics. For example, certain power amplifier transistors may benefit from having their characteristics stabilized during bias switching. An apparatus can include a power amplifier device. The apparatus can also include a voltage or current input to the power amplifier device. An input voltage or current to the voltage or current input can be configured to be controlled according to scheduled transmission in a slot. The apparatus can also include a gate bias insertion circuit provided at the bias input. The gate bias insertion circuit can be configured to provide a reduced input voltage or current as a power amplifier bias. The reduced input voltage or current can be configured to correspond to a threshold of a transistor of the power amplifier when transmission is not scheduled in a slot.
Measurement device for texture size, manufacturing system for solar cell, and manufacturing method for solar cell
A manufacturing method for a solar cell, wherein after a texture is formed on a principal surface of a substrate, infrared light in a predetermined wave number range is applied to a portion, on which the texture is formed, of the principal surface, a wave number at a specified transmission detection rate of the infrared light transmitted through the substrate and detected is acquired, the Tx size of the substrate is calculated on the basis of the acquired wave number using a previously obtained relationship between the wave number at the specified transmission detection rate and the Tx size, and when the calculated Tx size is within a reference value range, a collecting electrode is formed on the principal surface.
Method of PWM regulation of a continuous current electric motor
A method of PWM regulating a motor through a half-bridge drive stage includes sampling the motor current to obtain sampled values during driving intervals or during current decay intervals, and comparing a last sampled value with a current threshold. The motor is coupled in a slow decay electrical path for the duration of a current decay interval if the last sampled value does not exceed the current threshold. Otherwise the motor is coupled in a fast decay electrical path for a portion of the duration of the current decay interval, and is coupled in the slow decay electrical path for a remaining part of the duration of the same current decay interval.
Method of operating a power generation system
A method of operating a power generation system includes operating a power generation system to generate an electric power output. At least a portion of the electric power output is dissipated in a flow battery by charging the flow battery using the portion of the electric power output and self-discharging the flow battery.
Method or system for minimizing the impact of back EMF sampling for motor resistance profiling
A method of determining when to utilize a back EMF sampling method for motor resistance profiling in at least one DC motor, the method including the steps of analyzing a parameter prior to initializing the back EMF sampling method, and upon a determination that the analyzed parameter is within a defined range, initializing the back EMF sampling method.
Control device, driving device, and image forming apparatus
A control device includes a motor driving unit that supplies electric power to a motor according to a magnetic-pole-phase signal output from the motor; and a rotational-position detecting unit that converts the magnetic-pole-phase signal into a rotational-position detection signal and outputs the rotational-position detection signal. The rotational-position detection signal indicates a rotation amount and a rotation direction of an output shaft of the motor and has a higher resolution than the magnetic-pole-phase signal.
Method and apparatus for sensing underwater signals
Methods and apparatuses are disclosed that assist in sensing underwater signals in connection with geophysical surveys. One embodiment relates to a transducer including a cantilever coupled to a base. The cantilever may include a beam and a first coupling surface angularly oriented from the beam, and the base may include a second coupling surface angularly oriented from the beam and substantially parallel to the first coupling surface of the cantilever. The transducer may further include a sensing material coupled between the first coupling surface of the cantilever and the second coupling surface of the base.
Gate driving circuit and inverter having the same
There is provided an inverter including: an inverter unit including at least one inverter arm having a plurality of switches, and switching the input power according to control to output an alternating current power; at least one driving unit including at least one high voltage gate driving unit having a plurality high voltage gate drivers connected to one another in series between an input terminal of an instruction signal instructing a switching control of an inverter unit and an output terminal of a control signal controlling switching of the inverter unit to control switching driving of a high side switch and including at least one low voltage gate driver to control switching driving of a low side switch; and at least one bootstrap unit charging/discharging and dividing a voltage generated at the time of switching the plurality of switches according to switching control of the driving unit.
Method and apparatus for detecting AFE filter capacitor degradation
Methods and systems are disclosed for detecting capacitor degradation in an input filter of an active front end power conversion system in which voltage and current sensing is performed to determine sequence component impedance asymmetry to detect filter capacitor degradation according to the value of an off-axis admittance matrix component for Delta or Y-connected filter capacitor banks without sensitivity to voltage unbalance, and with the capability to identify particular degraded capacitor locations based on individual impedance values.
Transformer-less unified power flow controller
A power control device includes a first terminal, a second terminal connected to a transmission line, a first cascade multilevel inverter (CMI) and a second CMI. The first CMI is connected to the second terminal. The second CMI connected in series between the first terminal and the second terminal.
Automatic enhanced self-driven synchronous rectification for power converters
Systems and methods for providing a self-driven synchronous rectification circuit for an active-clamp forward converter which includes automatically enhancing synchronous MOSFETs and maximizing input voltage range. The gate signals for the synchronous MOSFETs are derived from a unipolar magnetic coupling signal instead of a bipolarized magnetic coupling signal. The unipolar signal is retained for fully enhanced driving of the MOSFETs at low line voltage and the unipolar signal is automatically converted to a bipolar signal at high line amplitude due to line variance to maximize input voltage range by utilizing non-polarized characteristics of the MOSFET gate-to-source voltage (Vgs). The circuit permits efficient scaling for higher output voltages such as 12 volts DC or 15 volts DC, without requiring extra windings on the transformer of the forward converter.
A two-transistor flyback converter includes a transformer having a primary side and a secondary side, a first transistor connected between an input voltage source and a first terminal of the primary side, a second transistor connected between ground and a second terminal of the primary side, and a diode directly connected between the first terminal of the primary side and ground. The first and second transistors are operable to switch on and off simultaneously and with no current return from the primary side to the input voltage source when the input voltage source is less than a reflected voltage from the secondary side.
Method and apparatus for integrated cable drop compensation of a power converter
An integrated circuit controller includes a switching control circuit coupled to output a drive signal to control switching of a switch to regulate an output power of a power converter to be coupled to a distribution network. An oscillator is coupled to output a clock signal coupled to be received by the switching control circuit. The switching control circuit is coupled to output the drive signal in response to the clock signal. A cable drop compensator is coupled to output a compensated reference voltage signal coupled to be received by the switching control circuit in response to a switching signal from the switching control circuit. The switching signal is representative of the drive signal. The cable drop compensator is coupled to adjust the compensated reference voltage signal proportionately to a load current to compensate for a distribution voltage across the distribution network.
Method and apparatus for power driving
Aspects of the disclosure provide a power circuit to provide electric energy with control and protection for driving a load, such as a light emitting diode (LED) array, and the like. The power circuit includes a converter, a voltage feedback module, a current feedback module and a controller. The converter is configured to receive electric energy from an energy source and to deliver the electric energy for driving the load. The voltage feedback module is configured to generate a first feedback signal based on a voltage of the delivered electric energy. The current feedback module is configured to generate a second feedback signal based on a current of the delivered electric energy. The controller is configured to receive the first feedback signal and the second feedback signal, and to control the converter to receive and deliver the electric energy based on the first feedback signal and the second feedback signal.
Current mode PWM boost converter with frequency dithering
A current mode PWM converter configured to maintain a duty ratio of a driving signal for driving a boost circuit boosting an input voltage to an output voltage when a frequency of a clock signal for generating the driving signal is varied.
Method of reducing input current distortion in a rectifier
A method is disclosed for reducing input current harmonic distortion in a Vienna-type active rectifier that includes the steps of sensing voltage values from upper and lower halves of a DC bus associated with the rectifier, determining an average of the sensed voltage values, calculating upper and lower scale factors by dividing the sensed voltage values with the averaged sensed voltage value, rescaling a reference signal from a controller using the upper and lower calculated scale factors, and forward feeding the rescaled reference signal from the controller to a pulse width modulator to obtain a gate driver signal for power semiconductor switches of the rectifier.
Switching power supply
In some aspects of the invention, a switching power supply can include a control circuit that conducts feedback control of a pulse width of a driving signal for switching the switching element according to an output voltage and settle the output voltage to a specified voltage level; a frequency reducing circuit that is disposed in the control circuit and reduces a frequency of the driving signal for switching the switching element upon detection of an overload state and limits an output current; and an initial state setting circuit that sets the control circuit to an overload detecting state for a predetermined period of time in a startup period of the control circuit. The initial state setting circuit can pull down a control voltage for a soft start signal for soft starting to the ground potential to inhibit generation of the driving signal and pulls up a feedback voltage signal.
Stepping motor and system thereof
A stepping motor includes a housing, a stator assembly, a rotor, and a sensor portion. The stator assembly is disposed inside the housing. The rotor is rotatably disposed inside the stator assembly and includes a rotation shaft, and opposite ends of the rotation shaft are supported by the housing. The sensor portion is disposed inside the housing and detects a magnetic field of the rotor.
Actuator, optical scanner, and image forming apparatus
An actuator includes: a movable portion that can oscillate around an oscillation axis; a connection portion that extends from the movable portion and is torsionally deformed in accordance with oscillation of the movable portion; and a support portion that supports the connection portion. The movable portion forms a cross shape in a plan view from a thickness direction of the movable portion.
Apparatus for forming insulation for electrical components
Embodiments of an apparatus for forming insulation for an electrical component are provided herein. In one embodiment an apparatus for forming an insulation for an electrical component may include an actuator to pull an electrical component in a substantially linear direction, wherein the actuator is configured to move the electrical component in at least one direction relative to the substantially linear direction; a material source configured to provide a material to one or more surfaces of the electrical component as the electrical component is moved proximate the material source, wherein the material comprises at least a portion of an insulation; and a plurality of movable dies having inner surfaces disposed such that the material conforms to the one or more surfaces of the electrical component as the electrical component is moved through the plurality of movable dies.
Device for guiding air in a suction system for a rotary electrical machine
The invention relates to a guidance device (10) of a suction system, said suction system being designed to suck up the dust generated by a brush (1) rubbing against a rotary element (2) in a rotary electrical machine, the guidance device (10) being designed in such a way as to concentrate a stream of air (F) generated by the suction system, near the end of the brush that is in contact with the rotary element (2). The guidance device defines at least one suction chamber (12) shaped so that it opens towards the rotary element, said at least one chamber having walls extending in a longitudinal direction so that said assembly is shaped so as to surround part of a brush near said end. The invention also relates to a suction system comprising such a guidance device.
Apparatus, system, and method for cooling an electric motor
An apparatus for providing a coolant to a stator and a rotor of an electric motor in a vehicle having a coolant pump is provided. The apparatus includes a base defining a plurality of first openings through at least one of which the coolant is flowable to the stator. The apparatus also includes at least one wall extending from the base to define a cavity configured to receive the coolant from the coolant pump. The apparatus further includes at least one first raised member within the cavity that extends from the base. The at least one first raised member defines at least one second opening substantially aligned with one of the first openings to form a first passageway through which the coolant is flowable to the rotor. The apparatus may be located above the electric motor such that the coolant is flowable by gravity to the stator and/or the rotor.
Apparatus to support superconducting windings in a rotor of an electomotive machine
An apparatus (structure) is provided to support a superconductor winding (61) of an electromotive machine. One or more elongated loops (74) and appropriate support structure (120) may be arranged to provide radial and tangential support to the superconducting winding (61). The elongated loops may be made of a material substantially resistant to heat flow. An axially-extending base assembly (100) may be arranged to anchor loops (74) with respect to the rotor core at a proximate end (76) of the elongated loops. A cradle (80) may be configured to define a recess (82) to receive the superconductor winding and to support the elongated loops at a distal end (78) of the loops.
Rotor of motor and fan driving motor including rotor
Provided are a rotor of a motor capable of attaining a high-speed rotation by appropriately dispersing a stress exerted on a flux barrier portion while reducing a leakage of magnetic flux, and a fan driving motor including the rotor. A second inner wall surface is greater than a first inner wall surface in length in a cross-section perpendicular to a rotational axis (C). A side wall surface has a flux barrier wall surface extending from each of both ends of the second inner wall surface in the cross-section perpendicular to the rotational axis (C), the flux barrier wall surface extending outward relative to the second inner wall surface in an extending direction of the second inner wall surface and more distant from an outer edge of a rotor as it goes from the second inner wall surface toward the first inner wall surface in the cross-section perpendicular to the rotational axis (C).
Systems and methods for uninterruptible power supplies with bidirectional power converters
Electrical power systems and methods using bidirectional power converters to provide, among other functions, uninterruptible power supplies for loads such as cell towers. The power-packet-switching power converter can be connected, for example, to a photovoltaic array, batteries, and a critical load such as a cell tower. An AC generator can also be connected in order to power the cell tower and/or to charge the batteries as needed. Green energy utilization is maximized, power conversion efficiency is increased, and system costs are decreased, by having only a single power conversion stage for all conversions.
System and method for converting electric power, and apparatus and method for controlling the system
Disclosed is technology regarding a system and a method for power conversion, particularly technology for converting power, which is supplied from a plurality of power supply sources, using a plurality of power conversion modules. A plurality of power conversion modules, which can process all of various types of supplied power, are used to convert power according to the type of supplied power. An intermediate connection unit, which can selectively connect the power supply sources and the power conversion modules, is used so that, when one of the power conversion modules has a problem, another power conversion module is used instead to guarantee stable power supply. This construction makes the power processing path flexible and enhances system stability because, even if one of the power conversion modules malfunctions, power conversion can continue through another path.
Systems and methods for providing power to one or more loads in a circuit
Disclosed are various embodiments for a power stage that can drive various types of loads. The power stage includes a first capacitor and a second capacitor that are coupled to the load. The power stage also includes switches that are operable in a first power stage state and a second power stage state. When the switches are in the first power stage state, the first capacitor discharges to the load, and the second capacitor charges. When the switches are in the second power stage state, the second capacitor discharges to the load, and the first capacitor charges.
Multi-tapped inductively-coupled charging system
An apparatus for wirelessly charging an energy storage element is disclosed. The apparatus includes a coil, a set of capacitors, a set of switches and a rectifier. The coil, which has multiple taps, is capable of being energized by a charger via inductive coupling. The capacitors are connected to the coil at various taps. The switches selectively connect the rectifier to at least one of the capacitors to charge the energy storage element that is connected to the rectifier.
Charger and charging apparatus
A reduction in breakdown voltage and mechanical deterioration of an electrode plate of a rechargeable battery are suppressed, and a charging time is shortened.There is provided a charger 10 which charges a rechargeable battery, comprising: a first output unit which outputs a first voltage; a second output unit which outputs a second voltage having a predetermined voltage value different from that of the first voltage; a charge control unit 16 which inputs the first voltage and the second voltage, alternately outputs these voltages, and supplies them to the rechargeable battery as charging voltages; a charged-amount detection unit 14 which measures a charged amount of the rechargeable battery; and an output control unit 15 which carries out control in such a manner that an output time of the first voltage and/or the second voltage in the charge control unit 15 is prolonged as the charged amount increases.
Charging control device to prevent supplied power from exceeding contract demand
When a communication control unit (14) in this charging control device (1) receives an inhibition command sent by a power monitoring device (2), the communication control unit instructs a signal processing unit (10) to lower a current capacity (an upper limit for a charging current). The signal processing unit (10) reduces the duty ratio of a pilot signal. As a result, the charging power supplied to an electric vehicle (200) decreases, thus making it possible to prevent the supplied power from exceeding a contract demand and minimize problems stemming from the charging of a rechargeable battery.
Battery charging method and mobile terminal
Embodiments of the present invention provide a battery charging method, related to the field of electronic technologies and invented to shorten the charging time. The method includes: determining, by a mobile terminal, a specification parameter of a battery to be charged; determining, by the mobile terminal, a charging parameter corresponding to the specification parameter according to the determined specification parameter; and charging, by the mobile terminal, the battery to be charged according to the determined charging parameter. Embodiments of the present invention also provide a corresponding mobile terminal. The present invention is applicable to charging of a mobile terminal.
Vehicle including a charging port and a light emitter
In a vehicle, a lamp for illuminating a charging connector is provided in a charging port, and lighting and extinction of the lamp are controlled by a light emission controller. The light emission controller causes the lamp to emit light when an outer door is opened. Further, the lamp is extinguished after detecting that the outer door has been closed, the vehicle is traveling at a predetermined speed, an ignition switch has been switched ON, a door locking operation has been performed, or charging has begun.
Wireless power transmitter
A wireless power transmitter includes a body having a coil module therein, and configured to transmit power in a wireless manner, a blowing module configured to cool the coil module by moving a fluid by convection and a guide module extending from the blowing module to outside of the body such that the fluid from the blowing module is discharged to outside of the body after cooling the coil module. The coil module has a shape corresponding to an outer circumference of the coil module partially or wholly.
Inductively coupled power and data transmission system
An inductively coupled power and data transmission system include a main power source, apparel having an electrical conductor in electrical communication with the main power source, the apparel having a first inductively couplable power and data transmission sub-system to regulate power to the primary coil or coils and transmission of power and data by the primary coil or coils and reception of data by the primary coil or coils, and an independent device having a second inductively couplable power and data transmission sub-system so as to regulate reception of power and data by the secondary coil or coils and transmission of data from a secondary processor by the secondary coil or coils. The first and second primary coils transfer said power and data during inductive coupling, at electromagnetic radiation frequencies, between the first primary coil or coils and the secondary coil or coils.
Plasma processing systems having multi-layer segmented electrodes and methods therefor
Methods and apparatus for plasma processing of a substrate to improve process results are proposed. The apparatus pertains to multi-layer segmented electrodes and methods to form and operate such electrodes. The multi-layer segmented electrode includes a first layer comprising a first plurality of electrode segments, whereby electrode segments of the first plurality of electrode segments spatially separated from one another along a first direction. There is also included a second layer comprising a second plurality of electrode segments, whereby the second layer is spatially separated from the first layer along a second direction perpendicular to the first direction and whereby at least two segmented electrodes of the first plurality of electrode segments are individually controllable with respect to one or more electrical parameters.
Electrical phase synchronization
The electrical phase synchronization technology includes a system, a method, and/or components thereof. In some examples, the electrical phase synchronization system includes an electrical power transmission network having a plurality of transmission lines and a plurality of electrical power generation devices. Each electrical power generation device includes an electrical power source and a control unit.
Powerline pulse position modulated three-phase transmitter apparatus and method
An electrical control system consisting of two or more electrical transmitting devices each capable of transmitting synchronized messages consisting of electrical pulses to devices connected to one or more of the three phases of the AC power lines in a typical three phase power system. The synchronized transmitters are each connected to neutral and to one or more of the three phases, A, B, and C, or across two of the phases, of different circuit breaker panels in a typical three phase power system, and are capable of transmitting messages to one or more of the three phases. The transmissions from the two or more transmitters are synchronized such that the transmitted pulses from each transmitter are transmitted at the same time to produce a message that can be received correctly at any receiving device connected to any of the connected circuit breaker panels.
Sequentially operated modules
Method, modules and a system formed by connecting the modules for controlling payloads. An activation signal is propagated in the system from one module to the modules connected to it. Upon receiving an activation signal, the module (after a pre-set or random delay) activates a payload associated with it, and transmits the activation signal (after another pre-set or random delay) to one or more modules connected to it. The system is initiated by a master module including a user activated switch producing the activation signal. The activation signal can be propagated in the system in one direction from the master to the last module, or carried bi-directionally allowing two way propagation, using a module which revert the direction of the activation signal propagation direction. A module may be individually powered by an internal power source such as a battery, or connected to an external power source such as AC power.
Electric power control device and electric power control system using same
A controller installed at each consumer side comprises: a power generation amount acquisition unit acquiring the amount of electricity that has been generated in a solar cell; a power selling amount acquisition unit acquiring the amount of electricity for sale that has been allowed to flow into an electric power system by reverse power flow, among the electricity generated in the solar cell; and a power selling suppression control unit configured to set a threshold value for the amount of the electricity for sale, as proportional to the amount of the generated electricity acquired by the power generation amount acquisition unit, and configured to suppress the reverse power flow into the electric power system so that the amount of the electricity for sale is set to the threshold value or less.
ESD protection component and method for manufacturing ESD protection component
An ESD suppressor is configured including first and second discharge electrodes arranged as separated from each other, and a discharge inducing portion kept in contact with the first and second discharge electrodes so as to connect mutually opposed portions of the first and second discharge electrodes to each other. The discharge inducing portion contains metal particles. The first and second discharge electrodes are located on the coil side with respect to the discharge inducing portion when viewed in a stack direction of a plurality of insulator layers. An element body has a cavity portion located so as to cover the whole of the discharge inducing portion when viewed in the stack direction from the coil side. The cavity portion is in contact with the mutually opposed portions of the first and second discharge electrodes and with the discharge inducing portion.
Passive circuit for improved failure mode handling in power electronics modules
A power electronics module for enhancing short circuit failure mode (SCFM) transitions. The module is adapted to disconnect a gate unit from the module using a first switch, upon a failure of at least one of a plurality of semiconductor chips during which the failed chip enters an SCFM, and connect a passive circuit arrangement, including at least one capacitor and at least one resistor, to the module using a second switch. The passive circuit arrangement is adapted to switch on at least one of the remaining non-failed semiconductor chips.
Method of measurement for detecting a fault of a three-phase zone
Method for protecting an electrical energy distribution box, the electrical energy distribution box comprising a set of distribution bars intended to be connected between a generator and loads, each of the bars being able to transfer at least a part of the electrical energy passing through it to at least one other bar of the set of bars. According to this method, the incoming and outgoing currents of a single distribution bar are measured and a fault in the set of bars is detected on the basis of the currents measured in the said bar.
Protective device for load circuit
A load circuit protective device calculates increasing temperature of wire of a load circuit with a first predetermined sampling period (dt1) determined by a clock signal for normal operation when a semiconductor relay (Q1) is on to estimate the temperature of the wire. The temperature of the wire is therefore estimated with high accuracy. Moreover, when the semiconductor relay (Q1) is off, the load circuit protective device calculates decreasing temperature of the wire of the load circuit with a second predetermined sampling period (dt2) to estimate the temperature of the wire. The second predetermined sampling period (dt2) is determined by a clock signal for power-saving operation and is longer than the first predetermined sampling period (dt1). Accordingly, the calculation times of the temperature can be reduced, and the power consumption is therefore reduced.
Electric wire drawout part structure
An electric wire drawout part structure so that the cover can be easily unlocked and the pipe body can be positioned without using a jig is provided. An electric wire drawout part structure including a housing, a cover which covers an opening part of the housing except an electric wire drawout part, electric wires which are drawn out from the electric wire drawout part, and a pipe body which accommodates and protects the electric wires, wherein, the cover is provided with an unlocking and positioning part for unlocking the cover from the housing and positioning the pipe body.
Electrical junction box
A convenient electrical juncture box will be used to repairing a broken household electrical wire, or to connect new wires to multiple locations. It provides all components that need for repairing job in a package. The package will include a conductor unit installed on a base structure, a cover box to enclose the entire electrical circuitry, two nails for securing the electrical juncture box to the wooden beam, and four screws for attaching the cover box to the base structure. The electrical juncture box can be mounted on a wooden beam in an open space such as the attic, crawlspace of a frame or similar structure.
Transition splice for cable routing system
The present invention is directed toward a transition splice that joins a cable tray and cable basket to form a cable routing system. The cable tray and cable basket each include a plurality of longitudinal wires and a plurality of transverse wires. An end transverse wire of the cable basket is positioned adjacent to an end transverse wire of the cable tray. A plurality of the longitudinal wires of the cable tray and the cable basket are aligned to form a pathway. The transition splice is secured to an end of the cable tray and to an end of the cable basket to maintain the pathway for routing cables thereon.
Panelboard and electrical power distribution system
An electrical power distribution system or panelboard that includes a hollow central body with at least one insulated bus bar and a top non-energized metal mounting surface. A plurality of connection points are distributed along the bus bar for electrical device connections. The connection points are contained inside molded plastic holes or wells, and are electrically connected to the main bus bar. Electrical device connections are accomplished via connectors plugged into the holes or wells. The attachment of electrical devices of various sizes and configurations may be accommodated through the use of spacers.
Seeded Raman amplifier in a nested configuration for generating a 1240 nm laser
A third-order Stokes signal at the desired output wavelength of 1240 nm and a zeroth-order Stokes pump wavelength at 1066 nm are seeded into a Raman amplifier comprised of two nested resonators tuned to the first-order Stokes line at 1118 nm and second-order Stokes line at 1176 nm, respectively. The pump wavelength is first amplified and then sequentially converted into the first and second-order Stokes wavelengths as the light traverses the nested resonators. The desired third-order Stokes output wavelength is then amplified by the second-order Stokes wavelength as it propagates through the outermost resonator. Each Raman resonator includes a photosensitive Raman fiber located between a pair of Bragg gratings. The linewidths of the various Stokes orders can be controlled through adjusting the resonant bandwidths of the Raman resonators by offsetting, through heating, the reflectivity bandwidths of each pair of Bragg gratings respectively located in the Raman resonators.
Method and apparatus for high-power raman beam-combining in a multimode optical fiber
According to an embodiment of the disclosure, a system for producing a higher power laser beam is provided. The system includes an optical fiber having a length. The optical fiber is configured to receive inputs from multiple laser pumps and an input from a Stokes seed laser pump. The optical fiber has a core that is doped. The core, when viewed from a cross-section of the optical fiber, has a higher concentration of doping at a location near an axis of the optical fiber than a location further from the axis of the optical fiber. The optical fiber is also configured to convert pump power to Stokes power along the length of the optical fiber when subjected to a Stimulated Raman Scattering (SRS) process.
Chip-based laser resonator device for highly coherent laser generation
A highly-coherent chip-based laser generating system includes a disk resonator incorporating a wedge structure fabricated from a silicon dioxide layer of a chip. The disk resonator is operable to generate a highly-coherent laser from a low-coherence optical pump input provided at an optical power level as low as 60 μW. The disk resonator is fabricated with sub-micron cavity size control that allows generation of a highly-coherent laser using a controllable Stimulated Brillouin Scattering process that includes matching of a cavity free-spectral-range to a Brillouin shift frequency in silica. While providing several advantages due to fabrication on a chip, the highly-coherent laser produced by the disk resonator may feature a Schawlow-Townes noise level as low as 0.06 Hz2/Hz (measured with the coherent laser at a power level of about 400 μW) and a technical noise that is at least 30 dB lower than the low-coherence optical pump input.
Brush holder apparatus, brush assembly, and method
Devices and methods of use for brush holder assemblies are disclosed. Brush holder assemblies including a mounting block and a brush holder are disclosed. Also illustrated is a brush holder assembly including a first portion in sliding engagement with a second portion. In some embodiments the brush holder includes a channel, such that at least a portion of the mounting block is disposed within the channel of the brush holder.
An apparatus for use with a first RJ-type female receptacle having an open, plug receiving end and an internal cavity, the first RJ-type female receptacle designed to receive a corresponding first modular mating RJ-type male plug, the apparatus having: a housing having a front face, a top wall, a bottom wall and side walls defining an opening formed within the front face; and the apparatus received in the first RJ-type female receptacle, and the opening dimensioned to receive a second modular mating RJ-type male plug, wherein the second modular mating RJ-type male plug is dimensioned smaller than the first modular mating RJ-type male plug.
Techniques for configuring contacts of a connector
Systems and methods for configuring contacts of a first connector includes detecting mating of a second connector with the first connector and in response to the detection, sending a command over one of the contacts and waiting for a response to the command. If a valid response to the command is received, the system determines the orientation of the second connector. The response also includes configuration information for contacts in the second connector. The system then configures some of the other contacts of the first connector based on the determined orientation and configuration information of the contacts of the second connector.
Electrical plug and associated electrical assembly
An electric plug (200) adapted to be plugged into a socket outlet (100) delivering an electrical signal having at least one characteristic adapted to vary in a determined range of values and including identification elements arranged to communicate or to co-operate with the electric plug to generate a pilot signal representative of the electrical signal delivered by the socket outlet, includes: reader elements (230) adapted to receive the pilot signal issued by the identification elements, and to supply the pilot signal to the electric plug; and verification elements (280) adapted to detect a spurious signal not issued by the identification elements (130), and to block forwarding of the pilot signal when such a spurious signal is detected, or to forward an alert signal to the electric plug when such a signal is detected. An electrical assembly including such an electric plug and a socket outlet are also described.
Electronic control module having a cover allowing for inspection of right angle press-fit pins
An electronic control module which has a housing, a cavity formed as part of the housing, and a connector. The control module also includes a plurality of pins, and a portion of the housing is integrally formed around the pins such that a first end of each of the pins are part of the connector, and a second end of each of the pins is located in the cavity. The control module also has a cover with a large portion and a small portion. A sealant is disposed between part of the cover and the housing to provide a seal between the cover and the housing. The small portion of the cover is bendable relative to the large portion to allow an inspection of the pins after the pins are press-fitted into the circuit board as the cover is connected to the housing.
Attachment ring for attaching a shield of a cable to a shell
An electrical connector includes a cable having a shield, a shell and an attachment ring for attaching the shield to the fitting. The shell extends between a mating end and a cable end. The shell has a fitting at the cable end. The shell has a cavity receiving an end of the cable through the fitting. The attachment ring is received inside the shield and the fitting. The attachment ring presses the shield outward against an inner surface of the fitting. The shield may be positioned radially inside of the fitting and the attachment ring may be positioned radially inside of the shield. A radially outer edge of the attachment ring may impart an outward radial load onto the shield.
Cable portion including a coupling device for connecting subscriber lines to a databus line
A cable portion comprising a databus line (54) having one or more subscriber lines (52) connected thereto by a coupler device. The databus line and the subscriber line(s) each comprise a twisted pair of conductors protected by shielding. The coupler device comprises a coupler (53) providing data transmission between the two parts of the databus line and between the databus line and the subscriber line(s), and connectors (56A, 56B, 58) serve to connect the databus line with the subscriber line(s) in reversible manner. The coupler device presents weight of less than 70 g and is held by means of a fastener collar that enables the cable portion to be put into place in particularly practical manner in order to constitute a data transmission circuit.
Apparatus for cutting off fibre mats
The present subject matter concerns a method and an apparatus for cutting fiber mats where the cutting is effected with a mechanical automatic tool, where cutting of the fiber mat is effected so that the cut surface on the fiber mat can be varied from an angle greater than 0° to an angle less than 180° in relation to both surfaces on the fiber mat, where it is the variable position of the fiber mat relative to the direction of movement and cutting of the cutting tool that determines the angle of the cut. A fiber mat may be cut with a cut which is particularly adapted to the specific piece of fiber mat which is cut. It is thus possible to have a production where various requirements to cut faces in the fiber mats can be met.
Connector for a vehicle
A connector and connector system for a vehicle, as well as a method of operating the connector, are provided. The connector includes a connector housing that has slide holes formed at both ends of a receiving surface and extending in the longitudinal direction of the connector housing. A slide bar is mounted slideably in the longitudinal direction of the connector housing, with an end inserted in the slide holes. A lever is mounted at the other end of the slide bar and has one end turnably coupled to the receiving surface of the connector housing. The lever is configured to pivot in a height direction of the connector housing, press the slide bar further into the slide holes and fix a counter connector to the connector housing, when being turned.
Grooved connectors with retaining mechanisms
A connector is disclosing with a housing having a housing groove and a shaft with a pin groove. A spring may be located in either the housing groove or the pin groove. To prevent or limit the spring from popping out from the groove where it is positioned, a reduced entrance is provided. The connector may be used in a holding application, a latching application, or both a holding with latching application.
A connector assembly includes a housing (1) in which a wire-side terminal (2) is held, and which is fitted to a mounting hole formed in a casing 5 of a mating device to be connected, and a sealing member (3) which is attached to a groove part (16) formed in an outer peripheral part (11) of the housing thereby to keep an interior of the casing liquid tight. The sealing member (3) includes a convex part (33) formed in a curved part thereof, by protruding in a width direction from its peripheral edge part in a shape of an 10 annularly continued band. The groove part (16) includes a concave part (18) formed by denting a groove wall (16b), corresponding to the convex part (33). The convex part (33) and the concave part (18) are engaged with each other.
Electrical terminal assembly
An electrical terminal assembly includes a base and a spring member. The base defines an axis and includes a plurality of base beams deflectable toward the axis. The spring member has a main portion that is disposed over the base, and a plurality of spring beams that extend from the main portion. The spring beams bias the base beams toward the axis. The main portion of the spring member is made from a folded blank having a first edge that is permanently secured to a second edge such that the edges cannot be pulled apart from one another.
High power electrical connector contact
A high power, single pole male electrical connector with a reduced surface area contact is disclosed. The male connector is configured for insertion into a female connector of standard design. The reduced surface area of the contact region of the male connector results in less surface contact between the male and female connectors.
Thin connector having a first connector slidably superimposed on a second connector
A thin connector comprises a first connector having a flat plate shape and a second connector having a flat plate shape superimposed on and fitted with each other, the first connector including first contacts arrayed in a direction, each first contact being provided with a first contact portion, the second connector including second contacts arrayed in a same direction as the direction in which the first contacts are arrayed, each second contact being provided with a second contact portion, each first contact having a spring portion which extends in a direction obliquely crossing the direction in which the first contacts are arrayed and on which the first contact portion is formed.
Mezzanine receptacle connector
A mezzanine receptacle connector includes a housing having a mating end configured to be mated with a mezzanine header connector and a mounting end configured to be mounted to a circuit board. The mating end is opposite the mounting end and includes a plurality of contact cavities configured to receive associated header contacts of the mezzanine header connector. Receptacle contacts are received in corresponding contact cavities of the housing. Each receptacle contact has a main contact and a sub-contact extending from the main contact. The main contact defines a first mating interface and the sub-contact defines a second mating interface. The first and second mating interfaces of each receptacle contact are configured to directly engage the same header contact of the mezzanine header connector at different points of contact.
Four-post terminal block with through posts
A terminal block, terminal board and terminal board assembly for terminating and testing railroad wires. The terminal block comprises a plurality of through-posts, allowing wiring and other components to be attached on posts on first and/or second sides of the terminal block. A surge protection component, control test link, and first wiring may be pre-installed on one side of the terminal block and terminal board, providing for quick installation prior to installing the terminal board assembly in the field. The through-posts also simplify the mounting of the terminal block to the terminal board, and the grounding for the terminal board.
Mechanical lug with dovetail interlock feature
The present invention is directed to a mechanical lug with interlocking features that secures an electrical conductor. The mechanical lug has a main body and a mounting tongue extending from the main body. The main body includes an inner flange and an outer flange. The inner flange has a horizontal member and an interlocking member with angled pockets. The outer flange has hooks with a tapered face positioned in the angled pockets of the interlocking member of the inner flange thereby forming a dovetail interlock.
Wire connector having a wire holder with an abutting portion and a protecting portion
A wire connector is described that suppresses the cutting of wires accidentally. The wire connector 1 includes a wire holder 6 that holds at least two wires, a contact 7A that electrically connects the two wires and a body 4 that holds the wire holder. The wire holder 6 includes first and second end faces 24 and 26, and a wire holding portion 25 that includes first and second holding portions 32, 33, 34 and 36. On the first end face 24, at portions of circumferential edge portions of the openings 34c and 36d of the second holding portions 34 and 36, protecting portions 23 that project from the first end face 24 and protect the wires are provided.
Aluminum cable provided with crimping terminal
A crimping portion includes a first crimping portion including a conductor crimping portion and a conductor enveloping portion that is integrally connected to the conductor crimping portion and envelops a portion of a conductor in the vicinity of an insulating covering portion, and a second crimping portion that is separate from the first crimping portion and crimped to the insulating covering portion in the vicinity of the conductor. A gap between the first crimping portion and the second crimping portion is sealed with a sealer, and thus the first crimping portion and the second crimping portion are integrally interconnected to each other.
Wireless communication apparatus
A wireless communication apparatus includes a first antenna, an antenna driving circuit, a first medium, a second medium, and a second antenna. The antenna driving circuit drives the first antenna. The first medium is electrically connected between the first antenna and the antenna driving circuit. The second medium and the first medium are in energy coupling. The second antenna is electrically connected with the second medium.
According to one embodiment, an antenna apparatus includes a concave curved reflector, a radiator arranged in a focal position of the reflector to perform at least one of transmission of two linearly polarized waves toward a concave surface of the reflector and reception of the waves from the concave surface, the two linearly polarized waves being crossed orthogonally to each other, and a structural unit configured to support the radiator at the focal position. The unit includes a main body protruding from a rear surface of the reflector into a radiation space defined by the concave surface at a position on the concave surface, the position being apart from two linear polarization planes defined by the two linearly polarized waves.
Low impedance slot fed antenna
A low impedance slot fed antenna with a slot and an element configured to resonate is depicted. The orientation of the slot is configured so that a slot current is not opposed to a return current associated with the element. This helps decrease coupling between the slot and the element, which can benefit high Q antennas.
Broadband antenna feed array
A microwave antenna suitable for monopulse radar applications is operable over a broad frequency band. The antenna uses a horn with two walls. Each wall includes two ridges that extend into an inner region of the horn near the horn's base and then taper into the wall surfaces. The horn is coupled to two ridged waveguide sections with the ridges of the waveguide sections matched to opposed pairs of the horn ridges. The antenna may be coupled to electronics via standard waveguides. In many embodiments, dimensions of the waveguides coupled to the horn are smaller (to provide a small array spacing) than dimensions of the standard waveguides with a tapered waveguide section providing a transition. In one embodiment, the antenna operates with frequencies from 5.25 to 10.5 GHz.
Antenna system with tuning from coupled antenna
Electronic devices may include radio-frequency transceiver circuitry and antenna structures. The antenna structures may form a dual arm inverted-F antenna and an additional antenna such as a monopole antenna sharing a common antenna ground. The antenna structures may have three ports. A first antenna port may be coupled to an inverted-F antenna resonating element at a first location and a second antenna port may be coupled to the inverted-F antenna resonating element at a second location. A third antenna port may be coupled to the additional antenna. An adjustable component may be coupled to the first antenna port to tune the inverted-F antenna. The inverted-F antenna may be near-field coupled to the additional antenna so that the inverted-F antenna may serve as a tunable parasitic antenna resonating element that tunes the additional antenna.
Antenna apparatus and mobile terminal having the same
An antenna apparatus includes: a first member ground-connected to a ground of a printed circuit board (PCB); a second member spaced from the first member in parallel, and configured to capacitive coupling-feed the first member so as to transmit and receive signals of a first frequency band; and a third member extending from the second member by a prescribed length, so as to have a bandwidth extending up to a second frequency band adjacent to the first frequency band.
Intra-pericardial medical device
An intra-pericardial medical device is provided that comprises a lead body having a proximal portion, a distal end portion, and an intermediate portion extending between the proximal portion and the distal end portions. An intra-pericardial medical device further includes the control logic housed with the lead body and an energy source housed within the lead body. A stimulus conductor is included and extends along the lead body. An electrode is joined to the stimulus conduct near the distal end portion, where the electrode configured to deliver stimulus pulses. A telemetry conductor is provided within the lead and extends from the proximal portion and along the intermediate portion of the lead body. The telemetry conductor is wound into a series of coil groups to form inductive loops for at least one of receiving and transmitting radio frequency (RF) energy.
Stacked array antennas for high-speed wireless communication
Array antennas for wireless transmission having an array of emitters/receivers that are compactly arranged above an antenna feed and ground plate. These high gain devices may be configured to operate in any appropriate band, such as the 5.15 to 5.85 GHz band and/or the 2.40-2.48 GHz band. The antenna emitters are arranged in a separate plane (or planes) above an antenna feed connecting the emitting elements to the radio circuitry. The antenna feed is positioned between the emitters and a ground plane. The antenna array may be configured to operate with both horizontal and vertical polarization. The apparatuses may be configured for low impedance mismatch and may have a high gain relative to a very small and compact overall shape.
Hearing aid with an antenna
A hearing aid includes a housing, and a hearing aid assembly accommodated in a housing, the hearing aid assembly having a first antenna element configured for emission of an electromagnetic field, and a second antenna element comprising a first section and a parasitic antenna element, wherein the first antenna element, the first section, and the parasitic antenna element are configured so that a total electromagnetic field emitted from the hearing aid assembly is substantially the same irrespective of whether the housing is worn in its operational position on a right hand side or a left hand side of a user.
Radar antenna assembly
A radar antenna assembly includes a microstrip patch, a hybrid coupler, a phase shifter, and a power divider. The microstrip patch is configured to emit a radar signal. The radar signal is characterized by a transmitted polarization of the radar signal. The transmitted polarization is influenced by a first transmit signal received at a first port of the microstrip patch and a second transmit signal received at a second port of the microstrip patch. The hybrid coupler is configured to orthogonally combine a first input signal and a second input signal to output the first transmit signal and the second transmit signal. The phase shifter is operable to vary the phase of the second input signal relative to the first input signal. The power divider is configured to divide unequally a source signal so the amplitudes of the first input signal and the second input signal are substantially equal.
RF transmission line disposed within a conductively plated cavity located in a low mass foam housing
An electrical structure having a foam housing is set forth. The foam housing includes an interior surface forming a conductive cavity adapted to carry energized waveforms therethrough. An electrical component of the electrical structure is integrally formed with the interior surface as the foam housing of the structure is assembled.
RF switch with transformer and switching method thereof
A radio frequency (RF) switch with a transformer and a switching method thereof are provided. The RF switch includes a transmitting end transformer having a primary side connected to a transmitting end and a secondary side connected to an antenna; and a receiving end transformer having a primary side connected to the antenna and a secondary side connected to a receiving end. In a transmission mode, the transmitting end transformer is tuned on, and, in a reception mode, the receiving end transformer is turned on. Accordingly, since switching is performed based on transformers rather than transistors connected in series, the RS switch, which can achieve high linearity and low insertion loss as well as high isolation, can be implemented.
Metal-air battery with dual electrode anode
This disclosure describes metal air battery devices with an anode structure having a plurality of electrodes. An anode is disclosed having a metal source as well as a current collector that together function as an active, reversible, working anode. The source is used for metal-ions that are stripped and stored in the current collector. At this point the current collector contains the metal-ions to be propagated through the rest of the device. Metal-ions may be stripped from and deposited on the current collector, while metal-ions may only be stripped from the source. Upon use of the device metal-ions may be lost to the system for a variety of reasons. To counteract the loss of metal-ions, the current collector is replenished of metal-ions from the source.
Self-activated draining system
A method of managing leakage of liquid inside a battery system comprises: containing leaking liquid in a non-liquid sensitive region of the battery system so as to protect internal electrical components of the battery system from coming in contact with the leaking liquid; and in direct response to the leakage, expunging the leaking liquid from the battery system. A drain device includes: a body with a port therethrough, the body configured to be positioned in a wall of a container; means for opening the port in response to a first liquid contacting the drain device on an inside of the container; and means for resisting ingress into the container by a second liquid that contacts the drain device on an outside of the container.
High voltage rechargeable magnesium batteries having a non-aqueous electrolyte
A rechargable magnesium battery having an non-aqueous electrolyte is provided. The properties of the electrolyte include high conductivity, high Coulombic efficiency, and an electrochemical window that can exceed 3.5 V vs. Mg/Mg+2. The use of the electrolyte promotes the electrochemical deposition and dissolution of Mg without the use of any Grignard reagents, other organometallic materials, tetraphenyl borate, or tetrachloroaluminate derived anions. Other Mg-containing electrolyte systems that are expected to be suitable for use in secondary batteries are also described.
Solid organic electrolytes
Solid, or highly viscous, organic electrolytes consisting of alkylimidazolium cation with alkyl, PEGylated and fluorinated side chains of different molecular weights were synthesized and characterized (cf. chemical structures in Schemes 1 and 2). The PEGylated/fluorinated imidazolium iodide is a solid organic electrolyte that has a conductivity of about 2×10−5 S/cm at 30° C. The ionic conductivity could be significantly increased (1.11×10−4 S/cm at 30° C. and S/cm at 2.88×10−3 at 90° C.) by blending the PEGylated/fluorinated imidazolium iodide with another solid electrolyte, 1-ethyl-3-methylimidazolium iodide (EtMImI). The PEGylated imidazolium iodides synthesized in the present work have conductivities in the range 1.6×10−4 S/cm to 2×10−4 S/cm at 30° C. and viscosities in the range 620 cP to 720 cP at 30° C. The iodide counter ion in the present electrolytes supplies the anion for the I−/I3− redox mediators for DSSCs. Therefore, the organic electrolytes of the present invention can be used even without the addition of inorganic salts such as LiI or KI. We found that the addition of an organic solid electrolyte, EtMImI, resulted in an increase in the ionic conductivity of the PEGylated/fluorinated imidazolium iodides, whereas the addition of the inorganic LiI led to a decrease in ionic conductivity. All the electrolytes are thermally stable until high temperatures (250° C. to 300° C.).
Lithium ion secondary battery, vehicle, and battery mounting device
A lithium ion secondary battery includes a flat wound electrode body including a positive electrode sheet and a negative electrode sheet that are wound while interposing therebetween separators into a flat shape, and a battery case. In the flat wound electrode body, a central portion has a more constricted shape than end portions by pressing toward a winding axis in a short-side direction and each end portion includes an end-portion positive electrode sheet, an end-portion negative electrode sheet, and end-portion separators, and a core member arranged more inward than them. With tensile forces generated by pressing of the central portion in a central-portion positive electrode sheet, central-portion negative electrode sheet, and central-portion separators, the end-portion positive electrode sheet, end-portion negative electrode sheet, and end-portion separators are in pressure contact with each other and press the outer surfaces of the core member.
Electrode for secondary battery, preparation thereof, and secondary battery and cable-type secondary battery comprising the same
The present disclosure provides a sheet-form electrode for a secondary battery, comprising a current collector; an electrode active material layer formed on one surface of the current collector; a conductive layer formed on the electrode active material layer and comprising a conductive material and a binder; and a first porous supporting layer formed on the conductive layer. The sheet-form electrode for a secondary battery according to the present disclosure has supporting layers on at least one surfaces thereof to exhibit surprisingly improved flexibility and prevent the release of the electrode active material layer from a current collector even if intense external forces are applied to the electrode, thereby preventing the decrease of battery capacity and improving the cycle life characteristic of the battery.
Winder for electrode assembly of rechargeable battery and electrode assembly manufacturing method using the same
An exemplary embodiment provides a winder for an electrode assembly of a rechargeable battery capable of improving productivity by shortening a winding cycle. A winder for an electrode assembly of a rechargeable battery according to an exemplary embodiment includes: a nip roll catching and feeding a positive plate and a negative plate, and a separator; a rotor disposed below the nip roll to rotate; and a plurality of winding cores arranged in the rotor at a regular interval in a rotation direction of the rotor to rotate and move forward or backward from the rotor, wherein the center of the nip roll, the center of any one winding core among the plurality of winding cores, and one surface of an electrode assembly of another winding core which is winding-completed form a straight line.
Sulfonated poly(phenylene sulfide sulfone nitrile) and membrane for fuel cell thereof
The present invention provides sulfonated poly(phenylene sulfide sulfone nitrile) and a polymer electrolyte membrane thereof. In particular, the present invention provides sulfonated poly(phenylene sulfide sulfone nitrile) having a triple bond at its both ends and a polymer electrolyte membrane with superior mechanical properties prepared by heating sulfonated poly(phenylene sulfide sulfone nitrile) and forming cross-links between ends of sulfonated poly(phenylene sulfide sulfone nitrile).
Compact safety type fuel cell system
This invention provides a compact safety type fuel cell system, including an enclosure and the electronic control system, electric isolation board, gas isolation board, fuel cell stack system, hydrogen delivery device installed in the enclosure. The electric isolation board divides the inside of the enclosure into electronic control system space and fuel cell stack working space, the gas isolation board divides the fuel cell stack working space into hydrogen side space and air inlet space, the air inlet space and the air inlet port of the fuel cell stack system are connected, the fuel cell stack system enclosure connects with the gas isolation board hermetically. This invention achieves electric isolation in a limited space and the effective isolation between air and hydrogen, which can directly replace the lead-acid cell system on battery-powered forklift being widely used now, requires no forklift redesign due to such problems as insufficient placing space, etc. and facilitates upgrading.
Gradient porous electrode architectures for rechargeable metal-air batteries
A cathode for a metal air battery includes a cathode structure having pores. The cathode structure has a metal side and an air side. The porosity decreases from the air side to the metal side. A metal air battery and a method of making a cathode for a metal air battery are also disclosed.
Lithium nickel cobalt manganese composite oxide cathode material
A lithium nickel cobalt manganese composite oxide cathode material includes a plurality of secondary particles. Each secondary particle consists of aggregates of fine primary particles. Each secondary particle includes lithium nickel cobalt manganese composite oxide, which is expressed as LiaNi1-b-cCobMncO2. An average formula of each secondary particle satisfies one condition of 0.9≦a≦1.2, 0.08≦b≦0.34, 0.1≦c≦0.4, and 0.18≦b+c≦0.67. The lithium nickel cobalt manganese composite oxide has a structure with different chemical compositions of primary particles from the surface toward core of each of the secondary particles. The primary particle with rich Mn content near the surface and the primary particle with rich Ni content in the core of the secondary particle of the lithium nickel cobalt manganese composite oxide cathode material have provided the advantages of high safety and high capacity.
Silicon oxide, making method, negative electrode, lithium ion secondary battery, and electrochemical capacitor
Particulate silicon oxide having a Cu content of 100-20,000 ppm, an Fe content of 20-1,000 ppm, an Al content of up to 1,000 ppm, an average particle size of 0.1-30 μm, and a BET specific surface area of 0.5-30 m2/g is used as negative electrode material in constructing a nonaqueous electrolyte secondary battery. The secondary battery is improved in cycle performance while maintaining the high battery capacity and low volume expansion of silicon oxide.
Anode material including nanofibers for a lithium ion cell
An anode material for a galvanic element, in particular a lithium-ion cell. To improve the current density and thermal stability of galvanic elements, the anode material includes nanofibers made of a metal, a metal alloy, a carbon-metal oxide composite material, a carbon-metal alloy composite material, a conductive polymer, a polymer-metal composite material, a polymer-metal alloy composite material or a combination thereof. The nanofibers may be in the form a nanofiber netting, a nonwoven and/or a network and may be connected to a current conductor.
A rechargeable battery including an electrode assembly including a first electrode, a second electrode, and a separator between the first electrode and the second electrode; a case containing the electrode assembly; a cap plate covering an opening of the case; and an external short circuit assembly on the cap plate and including: a cover on the cap plate; and a terminal plate on the cover and coupled to the cover.
Porous membrane for secondary battery, slurry for secondary battery porous membrane and secondary battery
The porous membrane according to the present invention comprises non-conductive particles, a binder, and a water-soluble polymer, and is characterized in that: the three dimensions of the non-conductive particles, namely the length (L), thickness (t), and width (b), are such that the length (L) is 0.1 to 0 μm, the ratio (b/t) of the width (b) and the thickness (t) is 1.5 to 100; the binder is a copolymer containing (meth)acrylonitrile monomer units and (meth)acrylic acid ester monomer units; and the water-soluble polymer contains sulfonic acid groups, and has a weight average molecular weight of 1000 to 15000. The slurry for a porous membrane according to the present invention is characterized by being formed by dispersing the non-conductive particles, the binder, and the soluble polymer, in water. Thus, the present invention provides: a porous membrane that can be formed into a thin film, has an excellent sliding property, and generates few particles; and a slurry for porous membranes which is capable of producing porous membrane easily and quickly, and has excellent storage stability.
Multilayer porous membrane and production method thereof
The present invention provides a multilayer porous membrane having both high safety and practicality, especially as a separator for a non-aqueous electrolyte battery and comprising a porous layer containing an inorganic filler and a resin binder on at least one surface of a polyolefin resin porous membrane, wherein the porous layer simultaneously satisfies the following (A) to (C): (A) the inorganic filler has an average particle diameter of 0.1 μm or more and 3.0 μm or less, (B) a ratio of an amount of the resin binder to a total amount of the inorganic filler and the resin binder is 1% or more and 8% or less in terms of volume fraction, and (C) a ratio of a layer thickness of the porous layer to a total layer thickness is 15% or more and 50% or less.
Heat-resistant and high-tenacity ultrafine fibrous separation layer, method for manufacturing same, and secondary cell using same
Provided is an ultrafine fibrous porous separator with heat resistance and high-strength and a manufacturing method thereof, which enables mass-production of a heat-resistant and high-strength ultrafine fibrous separator by using an air-electrospinning (AES) method, and to a secondary battery using the same. The method of manufacturing a heat-resistant and high-strength ultrafine fibrous porous separator includes the steps of: air-electrospinning a mixed solution of 50 to 70 wt % of a heat-resistant, polymer material and 30 to 50 wt % of a swelling polymer material, to thereby form a porous web of a heat-resistant ultrafine fiber in which the heat-resistant polymer material and the swelling polymer material are consolidated in an ultrafine fibrous form; performing drying to control a solvent and moisture that remain on the surface of the porous web; and performing thermal compression on the dried porous web at a temperature of between 170° C. and 210° C. so as to obtain the separator.