Electronic component mounting device and work method of electronic component mounting device
An object of the invention is to provide an electronic component mounting device and a work method of the electronic component mounting device, capable of ensuring safety of an operator who accesses a work line through a door portion, and avoiding reduction of workability. A space defined by a base (11) and a cover member (14) is partitioned by a partition member (15) to define a plurality of work line storing spaces (SP1). A plurality of work lines (12) are stored in the respective work line storing spaces (SP1) individually. When any of a plurality of door portions (14a) provided in the cover member (14) so as to allow an access to an inside of the respective work line storing spaces (SP1) is opened, an operation of a work line (12) stored in a work line storing space (SP1) accessible through the opened door portion (14a) is stopped.
Method for manufacturing flex-rigid wiring board
A method for manufacturing a flex-rigid wiring board including forming a rigid substrate including a rigid base material, a separator provided over the rigid base material, and insulation layers laminated over the rigid base material after the separator is provided, removing the separator together with a portion of the insulation layers after the laminating of the insulation layers, and forming a recessed portion configured to accommodate an electronic component according to a shape of the separator on a surface of the rigid substrate.
Under ball metallurgy (UBM) for improved electromigration
An interconnect structure that includes a substrate having an electrical component present therein, and a under-bump metallurgy (UBM) stack that is present in contact with a contact pad to the electrical component that is present in the substrate. The UBM stack includes a metallic adhesion layer that is direct contact with the contact pad to the electrical component, a copper (Cu) seed layer that is in direct contact with the metallic adhesion layer, a first nickel (Ni) barrier layer that is present in direct contact with copper (Cu) seed layer, and a layered structure of at least one copper (Cu) conductor layer and at least one second nickel (Ni) barrier layer present on the first nickel (Ni) barrier layer. A solder ball may be present on second nickel (Ni) barrier layer.
Wiring substrate and manufacturing method for wiring substrate
Disclosed is a wiring substrate that is provided with a wiring pattern formed from a metal plate, and an insulation layer as a base material to which the wiring pattern is to be fixed. The wiring pattern has a mounting pad for having electronic parts (11) surface-mounted. Electronic parts are mounted onto the surface of the wiring pattern, by pouring solder into the mounting pad of the wiring pattern.
Vertical exhaust duct
An electronic equipment enclosure comprises a frame structure formed from a plurality of support posts and at least partially enclosed by a plurality of panels. The panels include at least side, top and back panels defining an enclosure having a top, a bottom and a rear thereof. The top panel includes an opening there through that is rectangular in shape. The equipment enclosure further comprises an exhaust air duct extending upward from the top panel of the enclosure. The exhaust air duct is rectangular in cross-section and is disposed in surrounding relation to, and in fluid communication with, the top panel opening. The exhaust air duct is adapted to segregate hot air being exhausted from the enclosure from cool air entering the enclosure, thereby improving thermal management of the enclosure.
Compact display flex and driver sub-assemblies
Compact sub-assemblies of flexible circuits and drivers are provided. The sub-assemblies can occupy less space in an electronic device than conventional sub-assemblies. In one or more embodiments of the present invention, the flexible circuits can be attached to or wires can be disposed on portions of the substrate that previously were unoccupied in conventional sub-assemblies. In one or more embodiments, the sub-assemblies of the present invention also can have wires disposed underneath the driver or vary the width of the wires. In one or more embodiments, the sub-assemblies of the present invention also can have composite wires that occupy less space than wires of conventional sub-assemblies, while still maintaining similar energy flux.
Electronic device assemblies including conductive vias having two or more conductive elements
Electronic devices include a substrate with first and second pairs of conductive traces extending in or on the substrate. A first conductive interconnecting member extends through a hole in the substrate and communicates electrically with a first trace of each of the first and second pairs, while a second conductive interconnecting member extends through the hole and communicates electrically with the second trace of each of the first and second pairs. The first and second interconnecting members are separated from one another by a distance substantially equal to a distance separating the conductive traces in each pair. Electronic device assemblies include a transmitting device configured to transmit a differential signal through a conductive structure to a receiving device. The conductive structure includes first and second pair of conductive traces with first and second interconnecting members providing electrical communication therebetween.
Method of manufacturing a substrate having a voltage switchable dielectric material
A method for designing a printed circuit board to meet a specification is described. A first voltage switchable dielectric material is placed in apposition with a first copper foil. A second voltage switchable dielectric material is placed in apposition with a second copper foil. An arcuate portion of the first copper foil is placed in apposition with a first side of an aluminum member, an adhesive substance being situated between the first copper foil and the first side of the aluminum member. An arcuate portion of the second copper foil in is placed apposition with a second side of the aluminum member, an adhesive substance being situated between the second copper foil and the second side of the aluminum member.
Lid member with waterproofing function
In a lid member with a waterproofing function, the lid member including a projection portion integrally formed in one surface of a resin main body of the lid member opening and closing an opening portion formed in a housing, and accommodated in the opening portion, and a seal portion integrally formed in an outer peripheral surface of the projection portion, provided with an annular projection coming into close contact with a peripheral surface of the opening portion, and made of a rubber-like elastic material, the annular projection is formed as a shape which is expanded toward an inner portion side of the opening portion, forms in its outer peripheral surface a taper surface which converges toward the inner portion side, and is provided with a seal surface having a circular arc shaped cross section so as to be connected to a maximum diameter portion of the taper surface.
Cushion structure and electronic device
A cushion structure suitable for an electronic device is provided. The cushion structure includes cushions and at least one channel. Each cushion has a first surface and a second surface that are flexible and opposite to each other. Each cushion is combined to a body of the electronic device through its second surface, and the electronic device is placed on and in contact with a platform through the first surfaces of the cushions. The channel is in the body and communicated with the second surfaces. The channel is filled with a fluid that is in contact with the second surfaces of the cushions. When the first surface of at least one of the cushions sustains a force and deforms toward the second surface, the fluid in the channel is compressed to drive the second surfaces of the other cushions to deform toward the first surfaces to support the electronic device.
Electric connection box
The electric connection box includes a case receiving various electric components, like a relay, a fuse, and a connector. The case includes a low-height area with a lower height about height than other area of the case. A plurality of ribs forming a grid shape by intersecting to each other is provided on a bottom surface of the low-height area.
Power electronic device, power electronic system and hot plug method for power unit
The disclosed is a power electronic device comprising a power unit and a mounting cubicle matching with the power unit. The mounting cubicle is provided with a rail and an entrance for pushing into and pulling out of the power unit. A side of the mounting cubicle is provided with an power source and control output terminal and a signal output terminal. A side of the power unit is provided with a power source and control input terminal and a signal input terminal. The power unit is provided with a micro-switch. When the power unit moves along the rail, after the power source and control input terminal contacts with the power source and control output terminal. The signal input terminal becomes electrically connected with the signal output terminal, and the micro-switch is turned on so as to start the power unit.
A display apparatus is provided which includes a display panel, a front cover which accommodates a front of the display panel, the front cover being provided with a front cover extension formed at one side, a rear cover coupled to the front cover, the rear cover being provided with a rear cover extension corresponding to the front cover extension of the front cover, a bracket panel mounted between the display panel and the rear cover to support the display panel, the bracket panel including a coupling part coupled to the rear of the display panel and a support part which extends from a lower part of the coupling part, a stand unit coupled to the lower end of the support part of the bracket panel, the stand unit having a main circuit board mounted therein, and a hinge fixed to the support part of the bracket panel.
Discharge lamp lighting device, discharge lamp lighting method, and projector device
A discharge lamp lighting device includes a resonant circuit section connected to a discharge lamp, a power conversion section adapted to convert direct-current power into alternating-current power, and then supply the discharge lamp with the alternating-current power via the resonant circuit section, and a control section adapted to change a frequency of the alternating-current power in a stepwise manner with a frequency, which is different from a frequency causing a resonance of the resonant circuit section, intervening between frequency values of the frequency changed in a lighting start period until the discharge lamp reaches a stationary lighting state.
Short circuit detection for lighting circuits
This invention relates to control circuits for LED systems with a feedback loop to regulate a drive voltage. A controller for the system is proposed comprising a plurality of LED circuits and a controllable power source. The controller comprises a control unit configured to cause regulation of the drive voltage based on a determination of a plurality of feedback voltages and a fault condition detecting means. At least one of the LED circuits is determined as having a fault condition if the respective feedback voltage is below a fault threshold. In response to a detected fault condition, a test voltage is applied to a cathode of the fault circuit to confirm the presence of a fault condition.
Apparatus and method for driving LED
A light emitting diode (LED) driving apparatus may include: a rectifying unit providing a rectified voltage; an LED array including at least one LED string including first to nth LEDs connected in series; a sink path controller providing first to (n−1)th sink path control signals according to a level of the rectified voltage; a sink path switching circuit unit including first to (n−1)th sink path switches performing a switching operation according to each of the first to (n−1)th sink path control signals; a voltage phase controller generating a phase-adjusted voltage; a source path controller providing first to (n−1)th source path control signals; and a source path switching circuit unit including first to (n−1)th source path switches performing a switching operation according to each of the first to (n−1)th source path control signals.
Bi-level current configurable driver
A bi-level current configurable driver is provided. The driver includes a feedback circuit, a driver circuit providing a driver signal to a half bridge inverter, and a step-dim interface coupled to a first alternating current input line, a second alternating current input line, and a neutral line, providing voltage to the driver circuit. The driver also includes a first feedforward circuit coupled to the step-dim interface, where the first feedforward circuit receives a first signal from the step-dim interface based on the states of the first alternating current input line, the second alternating current input line, and the neutral line. In a first state, the driver provides full current to a load, and in a second state, the driver provides less than full current to the load.
LED luminaire having high power LED drive circuit
An LED luminaire according to an exemplary embodiment of the present invention includes a rectifier outputting a first rectified voltage generated by rectifying AC voltage and flattening the rectified voltage, a power factor correction unit receiving the first rectified voltage output from the rectifier and generating and outputting a drive voltage, an LED light emitting unit including first to m-th light emitting groups each including at least one LED, the LED light emitting unit sequentially driven by receiving the drive voltage input from the power factor correction unit, and an LED drive IC determining a voltage level of the drive voltage upon receiving the drive voltage input from the power factor correction unit, and controlling sequential driving of the first to m-th light emitting groups according to the determined voltage level of the drive voltage.
Circuits and methods for reducing flicker in an LED light source
Method and circuits for balancing a first waveform used to drive an LED are disclosed herein. The first waveform has a first cycle with a first amplitude and a second cycle with a second amplitude. An embodiment of the method includes adjusting the first amplitude of the first cycle to match the second amplitude of the second cycle, the result being a second waveform. The LED is driven with the second waveform.
LED lighting systems and methods for constant current control in various operation modes
System and method for providing at least an output current to one or more light emitting diodes. The system includes a control component configured to receive at least a demagnetization signal, a sensed signal and a reference signal and to generate a control signal based on at least information associated with the demagnetization signal, the sensed signal and the reference signal, and a logic and driving component configured to receive at least the control signal and output a drive signal to a switch based on at least information associated with the control signal. The switch is connected to a first diode terminal of a diode and a first inductor terminal of an inductor. The diode further includes a second diode terminal, and the inductor further includes a second inductor terminal.
Programmable underwater lighting system
The present disclosure relates to a programmable underwater lighting system for pools and spas. A plurality of underwater lights, each having a plurality of LEDs for producing light of various colors, a microprocessor for controlling the plurality of LEDs, and a memory in communication with the microprocessor containing one or more stored control programs, allow for the generation of various lighting effects in a pool or spa. A central controller is provided in communication with the plurality of underwater lights, and allows a user to define or select a desired lighting effect (such as a sequence, a fading effect, a “moving” color pattern, etc.) using a display and a keyboard. Optionally, a handheld remote control could be provided, in wireless communication with the central controller, for allowing a user to remotely control the plurality of lighting fixtures. When a desired lighting effect is defined by a user, the central controller transmits an instruction to each of the plurality of underwater lights instructing each light to execute a specific stored control program in its memory to produce the desired lighting effect. Each of the lights could be in communication with the central controller using a power line and an associated power line carrier data protocol, and each light could be provided with a thermal management system for monitoring the operating temperature of the light and automatically adjusting the brightness of the light to prevent dangerous temperatures.
Smart bulb system
A method and system for using smart bulbs is disclosed. One aspect of certain embodiments includes providing applications to both the consumer and the utility to monitor and control the bulbs and provide an audit trail.
Light emitting device, display device, light emitting component driver circuit, and method of driving light emitting component
A light emitting device includes light emitting component sets, a voltage measurement circuit, a voltage generator, and a drive controller. The voltage measurement circuit is configured to measure voltages at connecting points between light emitting component lines and drive switches. The voltage generator includes a plurality of smoothing capacitors for the light emitting component sets, respectively. The voltage generator is configured to generate a drive voltage applied to the light emitting component sets using one of the smoothing capacitors. The drive controller is configured to select the smoothing capacitor corresponding to the light emitting component set, the measured voltage of which is the lowest among the light emitting component sets on which lighting control is performed to alter the drive voltage according to alteration of the lighting control. The drive controller is configured to control the voltage generator to generate the drive voltage using the selected smoothing capacitor.
Dimming for light-emitting diode circuits
A dimming circuit for a light-emitting diode fixture includes a dimming switch, a signal transfer device, and a timer. The dimming switch can include a dimming switch and generate a current at a first voltage level, where the current corresponds to a dimmer setting of the dimmer switch. The signal transfer device can include an input communicably coupled to an output, where the input of the signal transfer device is electrically coupled to the dimming switch, and where the output of the signal transfer device generates a signal at a second voltage level based on the current received by the input. The timer can be electrically coupled to the output of the signal transfer device and to a LED driver, where the timer generates a pulse width modulation (PWM) signal based on the signal, and where the timer sends the PWM signal to the LED driver.
Device and method for driving LEDs
In a device and method for providing electrical current to a Light Emitting diode (LED) via switch mode power converter, at least one Integrated Circuit (IC) is provided and uses a hardware description language; an electronic switch configurable to have a switching time period. An Analog to Digital converter (ADC) is configured to obtain a digitized voltage input. A voltage comparator is configured to obtain a discharge time of an inductive element of the switch mode power converter at each time period. During operation, the IC obtains the digitized voltage input, the discharge time of the inductive element, the desired electrical current, a reference constant, and the switching time period of the electronic switch as inputs and calculates the switch-on time of the electronic switch at each switching time period, so that the switch-on time of the electronic switch regulates the electrical current flowing into the LED.
Carpet assembly capable of generating heat
A carpet assembly capable of generating heat comprises a plurality of polygonal base plates and a plurality of connectors. Each polygonal base plate has a power connector part provided at each periphery of the polygonal base plate, a heat generation device, and a power connection line. The power connection line is connected with the power connector part and the heat generation device, so that when the power connection line is connected with an external power, the power connector part and heat generation device are in electric connection via the power connection line, and the heat generation device begins to produce heat. When the connectors are connected respectively with the power connector part provided at one periphery of one polygonal base plate, the plurality of polygonal base plates are in electric connection with each other and forms a carpet assembly capable of generating heat with large area.
Induction cooking apparatus and method of use
An induction cooking apparatus. The cooking apparatus is a vessel, such as a pot, for holding food. One or more ferrous elements are mounted outside the walls of the vessel. The ferrous elements receive electromagnetic radiation from an electromagnetic radiation source and they therefore become heated. Heat from the ferrous elements is transferred to food located inside of the vessel.
Induction heating coil and method for melting granules composed of semiconductor material
An induction heating coil melts granules composed of semiconductor material on a plate with an outlet tube. The induction heating coil has a coil body provided with current-guiding slots, the coil body having an upper side and a lower side and having a passage opening for granules in a region of the coil body that lies outside the center of the coil, and current-carrying segments which project from the center of the lower side of the coil body and which are electrically conductively connected by a web at a lower end.
System and method for wireless process communication over distinct networks
A dual-mode router for conveying process communication packets across a plurality of distinct wireless process communication networks is provided. The router includes wireless communication circuitry and a controller coupled to the wireless communication circuitry. The wireless communication circuitry is configured to interact with signals from each of the plurality of distinct wireless process communication networks. The controller is configured to adapt process communication packets from a first distinct wireless process communication network for transmission over a second distinct wireless process communication network. Methods for configuring the distinct wireless process communication networks and relaying process packets over the distinct wireless process communication networks are also provided.
Radio communication device, method and system using multiple communication protocols
To be provided is a radio communication device including a packet generation unit for generating a packet including first decoding information that can be recognized by a radio communication device corresponding to a first communication scheme, second decoding information that can be recognized by a radio communication device corresponding to a second communication scheme and third decoding information that can be recognized by a radio communication device corresponding to a third communication scheme, and a transmission unit for transmitting the packet generated by the packet generation unit.
Open wireless architecture (OWA) mobile cloud infrastructure and method
A future mobile terminal converging multiple wireless transmission technologies by utilizing a cost-effective and spectrum-efficient mobile cloud solution by introducing Virtual Mobile Server (VMS) and Virtual Register and Call Switch (VR/CS) systems and methods based on the innovative open wireless architecture (OWA) technology platform, and the mobile terminal extended to other mobile cloud clients including computer terminal and television terminal fully synchronized through the VMS.
Method and apparatus for UL ACK allocation
Systems and methodologies are described that facilitate allocation of uplink acknowledgement (ACK) resources for a wireless communication system. Various aspects described herein facilitate explicit creation and transmission of a bundled assignment of downlink communication resources and uplink resources for ACK transmission, thereby facilitating overhead-efficient ACK allocation for users that can communicate pursuant to a persistent resource assignment without requiring scheduling information from an associated control channel. Additionally, indexing schemes for uplink ACK resources are provided herein to facilitate ACK allocation for systems in which both scheduled and persistent users can communicate at a common transmission time interval (TTI).
Apparatus and method for transmitting/receiving reference signal transmission information in cellular radio communication system using cooperative multi-point scheme
An apparatus and method for transmitting/receiving reference signal transmission information in a cellular radio communication system using a Cooperative Multi-Point (CoMP) scheme is provided. In the reference signal transmission information transmission method, a Central Control Apparatus (CCA) transmits measurement set information related to a measurement set including at least one reference signal resource unit through which a reference signal is transmitted, and reference signal transmission timing information including information related to a timing at which the reference signal is transmitted to a User Equipment (UE), and transmits reference signal non-transmission timing information including information related to a timing at which the reference signal is not transmitted through the reference signal resource unit to the UE.
Radio access for a wireless device and base station
A wireless device receives control message(s) configuring a plurality of cell groups and a time alignment timer for each of the plurality of cell groups. The time alignment timer starts or restarts in response to the wireless device receiving a timing advance command to adjust uplink transmission timing of a commanded cell group. The wireless device receives a control command initiating a random access process for a secondary cell in the secondary cell group. The wireless device aborts the random access process on the secondary cell if a first time alignment timer of the primary cell group expires.
Method for implementing specific termination cause codes in termination requests
A method includes a wireless mobile device communicating with a wireless network via an evolved high rate packet data (eHRPD) interface. The wireless mobile device may receive a vendor specific network control protocol (VSNCP) packet such as a terminate-request packet, for example, that indicates the wireless network has requested a PDN disconnection. The VSNCP packet includes a cause code that indicates a reason for the PDN disconnection request. The wireless device may use the cause code to determine the reason for the PDN disconnection request. Accordingly, in response to receiving the VSNCP packet, the wireless mobile device may perform one or more operations in an effort to resolve any issues that may have caused the PDN disconnection request.
WLAN channel allocation
A method includes reserving, at a wireless local area network (WLAN) controller, a first reserved communication channel from a plurality of communication channels available for use in a wireless network. The first reserved communication channel is withheld from a dynamic channel allocation process. The method includes receiving, at the WLAN controller, a request from a first device for access to the wireless network. The method further includes allocating the first reserved communication channel to the first device in response to a determination that the first device is included in a list of registered devices.
Coordinating transmission hold and resume in TD-SCDMA
Wireless communication in a radio access network may be implemented where a user equipment (UE) sends a hold signal to a Node B indicating that data transmission to the UE is to be put on hold. The UE may resume data transmission from the Node B by sending a resume signal to the Node B. During the hold in transmission, the UE may measure a GSM network to assist in handover of the UE between a TD-SCDMA network and a GSM network.
Dynamic sub-frame configuration method and apparatus in time division duplex system
The present application discloses a dynamic sub-frame configuration method in the TDD system. The method includes: in the case that the uplink and downlink sub-frame configuration of a cell and the uplink and downlink sub-frame configuration of its neighboring cell are different in the configuration of a sub-frame, a part of resources on the sub-frame are made to be silent for the cell, and the resources on the sub-frame corresponding to the resources not silenced on the sub-frame for cell are made to be silent for the neighboring cell; or, a part of resources on the sub-frame are made to be silent for the neighboring cell, and the resources on the sub-frame corresponding to the resources not silenced on the sub-frame for the neighboring cell are made to be silent for the cell. The present application further provides a dynamic sub-frame configuration apparatus in the TDD system. Not only can the problem that inter-cell interference is introduced during sub-frame switching in the TDD system be solved, but also the normal uplink and downlink measurement can be guaranteed, without affecting ACK/NACK feedback and HARQ process, and meantime the frequency spectrum utilization ratio is increased.
Radio base station; radio network controller and methods therein
Embodiments herein relate to a method in a radio base station for handling Uplink Closed Loop Transmit Diversity, UL CLTD. The radio base station is configured to control UL CLTD of a user equipment (10) served by the radio base station. The radio base station receives from a radio network controller (15) an indication indicating a change in the UL CLTD. The radio base station then removes UL CLTD related operation for the user equipment based on the received indication.
Method and device for configuring central subcarrier
A method and a device for configuring a central subcarrier are disclosed. The method comprises: mapping a first downlink control channel onto a part (f1) of a downlink bandwidth (fW) of a cell, and configuring a first virtual central subcarrier in f1, where f1 is different or partly different from a bandwidth f2 mapped to a second downlink control channel, an overlap between f1 and f2 is at least one subcarrier, or at least one idle subcarrier exists between f1 and f2, or at least one non-idle subcarrier and at least one idle subcarrier exist between f1 and f2; the first virtual central subcarrier is located on a grid position of a central frequency, a distance between the first virtual central subcarrier and a second virtual central subcarrier configured in f2 is an integer multiple of a frequency domain width of the subcarrier.
Method of allocating resource-area in wireless access system
A method of allocating a radio resource in a wireless access system is disclosed. The method includes receiving a control message associated with radio resource allocation for transmitting uplink data to the base station, wherein the control message comprises a first persistent uplink allocation information element comprising first resource allocation information associated with a first resource allocation region for transmitting the uplink data of a mobile station and transmitting an acknowledgment (ACK) message from the mobile station to the base station in response to successfully receiving the first persistent uplink allocation information element.
Multiplexing of peer-to-peer (P2P) communication and wide area network (WAN) communication
Techniques for supporting peer-to-peer (P2P) communication and wide area network (WAN) communication are disclosed. In one aspect, a method operable by a network entity to facilitate peer-to-peer (P2P) communication in a wireless network includes designating a first group of subframes in a wide area network (WAN) uplink (UL) spectrum for WAN communication. The method includes designating a second group of subframes in the WAN UL spectrum for P2P communication. The method further includes allowing P2P mobile entities to use WAN physical layer channels in the second group of subframes to communicate P2P control information and P2P data.
Searching space and operation for enhanced PDCCH in LTE systems
A method is provided for operating an eNB in a wireless communication network. The method comprises allocating, by the eNB, one or more resource units within one or more physical resource block pairs to a user equipment for transmitting enhanced control information.
Method and apparatus for processing a data transmission conflict of a relay-node
The present invention discloses a method and an apparatus for processing a data transmission conflict of a relay-node (RN), wherein the method for processing comprises: under the circumstance that the above RN is configured with multi-subframe scheduling resources on a backhaul subframe, if the above RN has acquired dynamic resources on the above backhaul subframe, receiving or sending, by the above RN, data by using the above multi-subframe scheduling resources or the above dynamic resources on the above backhaul subframe, or performing no processing; if the above RN has acquired semi-persistent resources on the above backhaul subframe, receiving or sending, by the above RN, data by using the above multi-subframe scheduling resources or the above semi-persistent resources on the above backhaul subframe, or performing no processing. According to the present invention, the problem of the data transmission conflict is solved, thereby achieving the normal transmission.
Mobile network having IP multimedia subsystem (IMS) entities and solutions for providing simplification of operations and compatibility between different IMS entities
An IP Multimedia Subsystem (IMS) architecture for IP multimedia services is provided with a given user equipment (UE); a gateway support node (GGSN) configured to handle packet transmission to/from the given UE; and a proxy call session control function (P-CSCF) configured to serve as a first contact point of the UE and provide session management services, including establishing a packet data protocol (PDP) context for IMS related signaling, registration, and other procedures for IMS sessions. The P-CSCF is also configured to perform the following: storing identification information from the given UE during registration in memory; receiving a SIP (Session Initiation Protocol) message from the given UE; comparing identity in the SIP message with the identification information stored with a link to a Policy Decision Function (PDF); and using the same PDF for all operations of the given UE, when the identity in the SIP messages matches the identification information stored in memory.
Communication method in WLAN system
A communication method performed by a station (STA) in a Wireless Local Area Network (WLAN) system is provided. The method includes: broadcasting a Direct Link Setup (DLS) discovery request frame for discovering a destination STA with which a direct link will be set up; receiving a DLS discovery response frame from the destination STA in response to the DLS discovery request frame; setting up the direct link with the destination STA; and transmitting a data frame to an Access Point (AP). The step of transmitting the data frame comprises transmitting the data frame to the destination STA through the direct link. The data frame received by the destination STA is relayed to the AP.
Automobile communication device
An automobile communication device receives a message from a peripheral device installed in an automobile. The message triggers a request to be transmitted to a server. The automobile communication device transmits the request over a primary cell group. The automobile communication device receives over the primary cell group a control message configuring a secondary cell group. The automobile communication device receives a plurality of packets over the primary cell group and the secondary cell group. The automobile communication device forwards the plurality of packets to the peripheral device.
Bidirectional flow service support method in IEEE 802.16/WiBro system
Provided is a bidirectional service flow management method in a wideband wireless connection communication system, and more particularly, a method of performing a bidirectional flow establishment. The method of providing a flow service in an IEEE 802.16/WiBro includes: generating a revised dynamic service addition (DSA) related message in which an area for designating bidirectional flow management information is allocated from a standard DSA related message; and performing a bidirectional flow initialization process between a subscriber station (SS) and a base station (BS) via single control message negotiation based on the revised DSA related message.
Method and apparatus for providing multi-media broadcast multicast services data to user equipment over relay nodes
A method and apparatus for providing Multi-media Broadcast Multicast Services (MBMS) data to user equipment in a Multi-media Broadcast over a Single Frequency Network (MBSFN) environment over relay nodes are provided. The method includes periodically evaluating a synchronization delay associated with relay nodes in an MBSFN area by a DeNB, and assigning resources to the relay nodes for communicating MBMS data. The method also includes setting a time stamp in synchronization packets based on the synchronization delay. The time stamp information may indicate a start time for synchronized transmission of the MBMS data to user equipment in the MBSFN area over an air interface. The method may further include transmitting the synchronization packets including the MBMS data and time stamp information to the relay nodes using the allocated resources such that the MBMS data is synchronously transmitted to the user equipment by the relay nodes.
Connection establishment method and user equipment
The present invention provides a connection establishment method and a user equipment. The connection establishment method includes: acquiring, by a second user equipment supporting a device to device (D2D) function, first user equipment information of a first user equipment supporting the D2D function; and initiating, by the second user equipment, a connection establishment process with a network-side device after the second user equipment determines that a connection with the first user equipment is established according to the first user equipment information, and sending the first user equipment information to the network-side device in the connection establishment process, so that a connection is established between the network-side device and the first user equipment. The present invention can realize establishment of a DPS bearer between the user equipments supporting the D2D function, realize communication between the user equipments supporting the D2D function and further realize resource controllability of a network.
Protocol for communication
Various methods and apparatuses for transmitting an allocation of time in a wireless communication system are disclosed. In one aspect, allocations of time for receiving and transmitting control communications are determined. The control communications may comprise a channel time request.
Method and apparatus for enhancement of cell ID-based position determination in TD-SCDMA multimode terminals
A method, an apparatus, and a computer program product for wireless communication are provided in which the method of wireless communication includes identifying a reference cell; selecting a plurality of candidate cells based on a criteria; determining a characteristic for the reference cell and the plurality of candidate cells; and setting a position based on the determined characteristic.
User terminal and communication control method
To set the maximum transmission power of a random access preamble suitably based on both of complexity of the mobile terminal and transmission characteristics (distance of the cell radius), the mobile terminal sets the maximum transmission power of the random access preamble at a value lower than the rated power of the mobile terminal based on the system bandwidth, a transmission frequency band of the random access preamble, and identification information of the root sequence of the random access preamble. In this case, it is possible to provide a user terminal and communication control method in a mobile communication system for enabling reductions in the uplink cell radius to be avoided, while reducing complexity of a power amplifier in the mobile terminal.
Carrier grouping for power headroom report
Methods, systems, devices, and computer program products are disclosed which facilitate the transmission and reception of power headroom reports for component carriers in a multi carrier wireless communication system. A mobile device may determine available power headroom in a multicarrier configuration through a calculation of a maximum transmit power associated with a first component carrier (CC) in a subset of the CCs. The calculation can account for increases in transmit power of other component carriers in the subset by proportionally increasing transmit powers for each of the subset of CCs. A power headroom may be identified for one or more of the CCs based on a result of the calculation, and a power headroom report (PHR) may be generated that includes the power headroom available for the first CC.
Energy-efficient network methods and apparatus
Methods and apparatus for changing the transmission/reception setup of a base station (BS) in a communication network to another transmission/reception setup (such as one using fewer transmit antennas and/or lower channel bandwidths) without affecting communication with user equipments involve “replacing” the existing BS with a “virtual” BS that has the other transmission/reception setup. Replacement can be performed by, for example, ramping down the power of the existing, or first, BS, which has a respective first cell identification (ID), and simultaneously ramping up the power of the virtual, or second, BS, which has a respective second cell ID.
Method and device for controlling uplink power
A method for controlling uplink power is disclosed in the present invention. The method includes: a base station configuring and sending a target received power parameter corresponding to a standard service rate, a path loss compensation factor parameter and a enabled deltaMCS parameter of adjusting transmitted power according to a Modulation Coding Scheme (MCS) grade to a terminal; subtracting target received power and a path loss compensation quantity from a limit value of the transmitted power of terminal to obtain power margin, and determining an available MCS grade of the terminal according to the power margin and sending the available MCS grade to the terminal. A system for controlling the uplink power is also disclosed in the present invention. In the present invention, a structure of the system is simple, which supports an adaptive selection for the suitable MCS grade of UE, and implements uplink power control correctly and effectively.
Power headroom management in wireless communication systems
Systems and methodologies are described that facilitate power headroom management in a wireless communication system. As described herein, a predefined relationship between locations along a system frequency band and corresponding power backoff parameters is utilized to minimize spurious emissions outside the system frequency band and/or excessive interference by, for example, associating locations near one or more edges of the permitted frequency band with substantially high power backoff parameters. As further described herein, the predefined relationship can be known a priori to the base station and the mobile terminal.
Base station device
A base station device of the present invention includes a downlink signal reception unit 12 that receives a downlink signal from another base station device, and a synchronization processing unit 5b that obtains a known signal contained in the downlink signal from the another base station device and that performs inter-base-station synchronization with the another base station device based on the known signal. The synchronization processing unit 5b performs inter-base-station synchronization such that the transmission timing of the known signal in its own downlink signal is different from the transmission timing of the known signal in the downlink signal of the another base station device.
Apparatus and method for inter-vehicle communication
An apparatus and a method for inter-vehicle communication includes a communicator communicating with another vehicle and a position determiner verifying position information of a vehicle, A controller is configured to synchronize a time point of transmitting/receiving a message to/from the other vehicle through a signal from the position determiner, performing a phase control for transmitting message, and transmitting the message to the other vehicle at a determined time point of transmitting the message according to the phase control result.
Method of barring network access in mobile device, mobile device, and processor used in mobile device
When a network is in a state of requiring some sort of access barring, a reference value notified to a mobile device is determined to indicate a value in which an access of a certain mobile device is denied while an access of another mobile device is allowed. When an own device has a special type access class, it is determined that an access is allowed The appropriateness of an access is determined according to designation from the network when the own device has the special type access class, and when the own device does not have the special type access class, it is determined that an access is denied.
Systems and methods for transmitting and receiving discovery and paging messages
Methods, devices, and computer program products for transmitting and receiving discovery and paging messages are described herein. In one aspect, an apparatus operable in a wireless communication system includes a transmitter and receiver. The transmitter transmits a discovery packet during a first discovery interval of a plurality of discovery intervals. The discovery packet advertises a service provided in a wireless communications network, and the plurality of discovery intervals include recurring time intervals when a plurality of devices are configured to transmit and receive discovery packets. The receiver receives a paging packet from a first device during a first paging interval of a plurality of paging intervals. The paging packet indicates interest in the service, and the plurality of paging intervals include recurring time intervals when the plurality of devices are configured to transmit and receive paging packets. The plurality of paging intervals do not overlap the plurality of discovery intervals.
Mobile wireless device with intelligent network access selection
Alternative network access for a mobile device having a first radio and a second radio, or in some cases, only one radio can include using a first radio in a first connection with a first access point. Whether to establish a second connection with a second access point using a second radio is determined. The determination is based on a first set of access conditions associated with the first access point and a second set of access conditions associated with the second access point. The second connection is established with the second access point using the second radio based on the determining, which indicates establishing the second connection.
Long term evolution network admission management
A core network device may be configured to work with a radio access network device to determine whether to allow access to a network. Criteria that may be used to make the determination include the condition of devices and links within the core network and the radio access network, which may be determined by data received from other devices at the core network device. In another embodiment, the type of service requested, for example whether the request is for an IMS service or non-IMS service, may be used to evaluate whether the a request for access to the network should be permitted.
Access control according to a policy defined for a group of associated electronic devices comprising a cellular modem
Access to a telecommunications network can be controlled according to a policy defined for a plurality of user equipment devices associated with the same user. When two user equipment devices are allowed to operate in parallel under the same subscription, the policy may define a distance between the user equipment devices. When the actual distance between the user equipment devices conforms with the distance defined in the policy, one or more network nodes serving one of the user equipment devices can be assigned to replace a network node serving the other user equipment device to prevent abuse of the end user's subscription or to optimize performance, so as to consolidate service.
Radio communication system, radio base station, and handover control method
A radio communication system wherein a radio terminal (200A) and a relay node (300A) are connected to a radio base station (100A), and at least one of the radio terminal (200A) and relay node (300A) can move. The radio base station (100A) controls a handover that is an operation of the radio terminal (200A) to change the connection destination thereof. The radio base station (100A) controls the handover from the radio base station (100A) to the relay node (300A) on the basis of whether a predetermined condition, which indicates that the change in relative distance between the radio terminal (200A) and the relay node (300A) is kept null or small, is satisfied or not.
Handover relation identification utilizing network events
Aspects relate to automatically establishing neighbor relations for adjacent sectors based on one or more network events. The neighbor relations can be established between sectors that can be identified as inter-frequency neighbors or intra-frequency neighbors. In an aspect, the network events can be active call data events received from one or more mobile devices. The active call data events can be radio access bearer establishments and internal system releases. In another aspect, the network events can be idle call data events received from one or more mobile devices. If a first event ended on a first sector and a second event started on a second sector before expiration of an interval that started when the first event ended, the first sector and second sector can be defined as neighbors.
Predictive hard and soft handover
Methods and apparatus that facilitate predictive hard and soft handover are presented herein. A measurement component can measure signal strength data associated with a source cell and one or more target cells. One or more linear regression lines can be computed based on the signal strength data. Rates of at least one of an increase or a decrease in the signal strength data per unit of time can be determined based on a slope of the one or more linear regression lines—the slope can comprise a change in signal strength data per unit of time. A time to trigger at least one of a hard or soft handover can be triggered based on the rates.
Facilitating intelligent radio access control
Intelligent radio access control selecting a first cell device of a first cell layer or a second cell device of a second cell layer or selecting a radio access technology for communication by a mobile device are provided. A device receives information indicative of an access assignment for communication. The access assignment is generated based on a defined criterion, which is associated with a policy of determining a cell layer assignment prior to determining a radio access technology (RAT) assignment. In response to receiving the information, the device can update its configuration to transmit via a transmission parameter based on the information. The cell layer assignment can offload traffic from the first cell device to the second cell device while the RAT assignment can re-assign the device from a first RAT to a second RAT. Assignment can be based on network conditions or mobility state or applications of the device.
Wireless LAN system, wireless LAN access point, handover execution method and program
Disclosed is a wireless LAN access point which has a detection means for detecting another wireless LAN access point; a handover timing adjustment means which makes a wireless LAN client under the control of the local wireless LAN access point transmit the handover information required to accommodate the other wireless LAN access point and adjust the handover timing with the other wireless LAN access point when it is judged whether or not a handover to the other wireless access point of the wireless LAN client under control can be executed and the handover is executed based on information relating to the other wireless LAN access point detected; and handover execution means for stopping the communication to the wireless LAN client at the adjusted timing.
Method for controlling access of terminal to home (e)NodeB
A method for controlling access of a terminal to a Home (e)NodeB by a network entity, the terminal accessed to the Home (e)NodeB operated in a closed access mode or a hybrid access mode by using a specific closed subscriber group (CSG) ID. The method includes recognizing by the network entity, that an allowed access timer of the specific CSG ID with respect to the Home (e)NodeB has expired; transmitting an Update Bearer Request message to other network entity in order to change a membership of the expired CSG ID; transmitting a Bearer Modify Request message to the Home (e)NodeB in order to change a membership of the expired CSG ID; and updating a bearer with said other network entity, and a bearer with the Home (e)NodeB.
Method and apparatus for accessing legacy networks through temporary ID of evolved network
In a method for accessing a legacy wireless network, a radio access network (RAN) node in the legacy wireless network receives an access message sent by a User Equipment (UE) attempting to access the legacy wireless network. The access message includes mobility management entity (MME) information identifying an MME accessed by the UE in an evolved network. The MME information is added by the UE from a temporary identity (ID) allocated by the MME to a first P-Temporary Mobile Station Identity (P-TMSI) in the access message. The RAN node selects a corresponding Serving GPRS Support Node (SGSN) in the legacy wireless network for the UE according to the first P-TMSI in the access message.
Method, system, and apparatus for reserving network resources
The present invention discloses a method, a system and an apparatus for reserving network resources. The network resource reservation method includes: directly receiving, from a mobility management control function (MMCF), a request for resource reservation on a target transport path; controlling a transport function to reserve network resources on the target transport path according to the resource reservation request; and returning a result of the network resource reservation to the MMCF. The technical solution of the present invention enables advance resource reservation on a target transport path before a network handover occurs, when a user is moving.
Apparatus and method for controlling traffic flow in backhaul link in wireless communication network
A method, system, and apparatus for controlling traffic flow in one or more backhaul links in a wireless communication network is provided. Each backhaul link of the one or more backhaul links includes a backhaul uplink and a backhaul downlink. The method includes analyzing one or more backhaul uplinks and one or more backhaul downlinks between a controller and one or more Base Transceiver Stations (BTSs). The method further includes communicating one or more messages between the controller and the one or more BTSs. The one or more messages include analysis of one or more analysis of one of the one or more backhaul uplinks and the one or more backhaul downlinks. The method further includes controlling the traffic flow in at least one of the one or more backhaul uplinks and the one or more backhaul downlinks based on the one or more messages.
Signal measurement in TD-SCDMA multicarrier systems using downlink synchronization codes
Wireless communication in a multicarrier radio access network may be implemented where a user equipment (UE) maintains communication with various carrier frequencies in the multicarrier network. The UE will receive an indication from a node B to measure a signal quality on one of a number of carrier frequencies in the network. The UE will then measure the signal quality on the carrier frequency based on measurements using a downlink synchronization code transmitted by the node B on the downlink pilot channel of the carrier frequencies in the multicarrier network. The UE may then report the channel quality back to the node B.
Monitoring of the packet-based communication performance of IP address pools
An IP address pool monitor is communicatively coupled to a communication link carrying packets between a mobile wireless communication network and a wide area network. The pool monitor receives requests transmitted by mobile devices over the communication link to the wide area network, and stores a record for each request. The pool monitor also receives responses transmitted back to the mobile devices responsive to each request. Each mobile device is assigned an IP address from one of a plurality of IP address pools. Upon receiving a response, the pool monitor identifies the IP address pool that includes the IP address of the mobile device associated with the request responsive to which the response was transmitted. The pool monitor then calculates a performance statistic for the identified IP address pool based on the stored record of the request and the received response.
Single bearer network connection establishment
A first device may establish a connection with a user device via a particular bearer associated with multiple policies for corresponding data flows. The first device may also receive a first data packet associated with a first data flow; apply, to the first data flow, a first policy of the multiple policies; transmit the first data packet to the user device via the particular bearer; receive a second data packet associated with a second data flow; apply, to the second data flow, a second policy of the one or more policies; and transmit the second data packet to the user device via the particular bearer.
Method and apparatus for receiving data at mobile station in sleep mode in wireless communication system
A method and apparatus for receiving data at a mobile station in a wireless communication system are disclosed. A method of receiving data mobile station in a wireless communication system includes receiving an Advanced Air Interface Traffic Indication (AAI_TRF-IND) message including a positive indicator during a listening window from a base station, and receiving a traffic by extending the listening window without restriction as to an extension range of the listening window from the BS if there is traffic to be transmitted to or received from the base station after the listening window.
Data cut-over method and apparatus
The present invention discloses a data cut-over method and apparatus, wherein the method includes: obtaining a model mapping relationship between a source Operation Maintenance Module (OMM) and a target OMM of different system versions (S101); obtaining a base station which is designated by a user to be cut over to the target OMM and data associated with the base station that needs to be modified during the data cut-over designated by the user, and generating a data cut-over plan file (S102); exporting a source OMM data file from the source OMM (S103); exporting a target OMM data file from the target OMM (S104); generating an interface data file according to the model mapping relationship, the source OMM data file, the target OMM data file and the data cut-over plan file (S105); and importing, the interface data file into the target OMM (S106). The present invention improves the cut-over efficiency and accuracy and reduces the cut-over workload.
Mobile communication system, base station, network device, and control method and program thereof
In order to reduce interference to a macro user equipment by easily selecting a home cell serving as the source of interference to the macro user equipment and adjusting a transmission power or the like, a plurality of base stations (10—1 to 10—3) that constitute a mobile communication system (1) respectively form cells (11—1 to 11—3) for radio communication. A network device (50) causes candidates for a first base station that should perform reconfiguration of the cell among the base stations (10—1 to 10—3) to execute the reconfiguration. The candidates for the first base station are selected based on radio resources used by each of the base stations (10—1 to 10—3) at the time of forming the cells (11—1 to 11—3). Alternatively, the first base station is selected based on uplink interference to each of the base stations (10—1 to 10—3).
Radio communication system, base station, mobile station, radio communication method
The present invention is applied to a radio communication system having a mobile station and a plurality of base stations each of which communicates by a radio signal with a mobile station that is present in a cell of each of its own base stations. In the radio communication system of the present invention, each of the plurality of base stations has base station side control means that detects an IP address of a base station that is a sender of an interference signal from the radio signal if the radio signal received from a mobile station with which the own base station is communicating contains the interference signal, the IP address having been set to the interference signal.
Techniques for measuring a location of UE
The present invention provides a method for measuring a location. The method comprises: receiving, by a User Equipment (UE) and from a serving cell, information on a bandwidth allocated for a positioning reference signal (PRS); receiving, by the User Equipment (UE) and from at least one or more neighbor cells, information on a bandwidth allocated for a PRS; determining whether there is a difference between the bandwidths; and measuring, by the UE and based on a result of the determination a timing difference between PRSs transmitted from the serving cell and the at least one or more neighbor cells.
System and method for interference free operation of co-located transceivers
Systems and methods for co-locating a plurality of transceivers capable of operating on the same frequency without interference are provided. The transmissions and/or receptions of the transceivers are coordinated in the time domain such that conflicting sectors are not utilized simultaneously, allowing for the transceivers to be physically located in close proximity without significant intra-system interference. The coordinating programs described herein allow for enhanced efficiency of spectral utilization as well as enhanced quality of service (QoS) through latency controls, rate control and traffic prioritization.
Controlling access to a mobile device
A method of controlling user access to a mobile device includes detecting at the mobile device the presence of a wireless device via a short-range wireless signal; identifying the wireless device from the wireless signal; accessing at the mobile device a list that includes the identity of one or more trusted wireless devices and is stored at the mobile device; comparing the identity of the detected wireless device with the identity or identities include with the list of trusted wireless devices; determining that the identity of the detected wireless device is included with the list of trusted wireless devices; and deactivating a passcode requirement used by the mobile device based on the determination that the identity of the detected wireless device is included with the list of trusted wireless devices.
Method, apparatus, and system for mobile virtual private network communication
A mobile packet gateway obtains a network address of the terminal and a network address of a gateway virtual interface. The network address of the gateway virtual interface and the network address of the terminal belong to a same network segment. A virtual interface is created for a Packet Data Protocol Context (PDP context) of the MS according to the network address of the gateway virtual interface. A network segment address of a branch network served by the MS is obtained from the MS through the virtual interface according to a dynamic routing protocol.
Service awareness and seamless switchover between client based WiFi access and mobile data network access
A system and method provides seamless switchover of a user device (UE) between a mobile data network and a wireless network while providing policy and charging control (PCC) of the data session in the mobile data network. A mobile core network component is made ASF aware to process user data traffic related to an auto switching function (ASF) server from a UE client located on the UE using a special access point name (APN). The mobile core network component then uses a dedicated deep packet inspection (ASF DPI) for all data transfers to the special APN. The core network component is then able to process the UE data traffic seamlessly as the traffic is toggled between the ASF tunnel the WiFi tunnel. By monitoring the data traffic on the ASF tunnel, the core component (GGSN/PGW) is able to provide PCC for the data session.
Device resources sharing for network resource conservation
Systems and methods for device resource sharing for network resource conservation are disclosed. In one embodiment, the method can include, for example: detecting that multiple devices are attempting to access a same content source over a mobile network. The same content source can then be polled once in a single poll event and the content received in response to the single poll event of the one same content source is transmitted to one device of the multiple devices. The other devices of the multiple devices can receive the content from the one device, over a non-cellular connection.
Contention-free handoff of emergency telephone calls in a wireless network
An enhanced Node B (eNB) and method for contention-free handoff of an emergency telephone call in a wireless network are provided. The eNB in one example embodiment includes a transceiver system configured to communicate with a User Equipment (UE) and a processing system coupled to the transceiver system and configured to receive a telephone call from the UE via the transceiver system, determine if the telephone call comprises an emergency telephone call, if the telephone call comprises an emergency telephone call, then determine neighbor eNBs that are not configured to provide contention-free handoffs, if the telephone call comprises an emergency telephone call, then reserve a contention-free (CF) preamble from each neighbor eNB that is not configured to provide contention-free handoffs, and provide the reserved CF preambles to the UE.
Method and apparatus for distributing alerts
A system that incorporates teachings of the present disclosure may include, for example, a cordless phone operating in an establishment with a plurality of cordless phone handsets having a controller adapted to monitor a source for weather alerts, detect a weather alert, determine from the weather alert a weather alert type, retrieve a user profile, identify from the user profile and the weather alert type one or more of the plurality of cordless phone handsets to be notified of the weather alert, select from the user profile a ringtone type for each of the identified cordless phone handsets, wherein the ringtone type identifies the weather alert type, and transmit a message to cause each of the indentified cordless phone handsets to assert the ringtone type identified therefor. Other embodiments are disclosed.
Method and device for group-transmitting multimedia messages
The present disclosure discloses a method for group-transmitting multimedia messages. The method comprises the following steps: setting addresses of reception parties at a transmission terminal; after a multimedia message is edited by a user, the transmission terminal establishing a connection via Wireless Fidelity (WIFI) with reception terminals according to the addresses of the reception parties, and transmitting the multimedia message to the reception terminals via the established connection according to the addresses of the reception parties. The present disclosure further discloses a device for group-transmitting multimedia messages. The method and the device of the present disclosure realize the group-transmission of multimedia messages without limiting the size of the multimedia messages, thus profiting the development and popularization of the multimedia message service.
Method and apparatus for controlling the application of selected IP traffic offload and local IP access
A method and apparatus are described for controlling the application of Selected Internet Protocol (IP) traffic offload (SIPTO) or Local IP Access (LIPA) services for a wireless transmit/receive unit (WTRU). The SIPTO and LIPA services may be performed over packet data network (PDN) connections. A user of the WTRU may be prompted to accept or reject the usage of the SIPTO or LIPA services. The user of the WTRU may request switching from SIPTO or LIPA services to non-SIPTO or non-LIPA services.
Detecting earliest channel path in location tracking systems
Methods, systems, and devices for detecting earliest channel path and/or determining time of arrival of signals in location tracking systems are described. An ultra-wideband (UWB) signal may be received from a tag. A noise estimation level above which the UWB signal is detectable may be determined using a noise estimation metric. A channel impulse response (IR) energy level may be determined using a channel energy metric. A leading edge window of the UWB signal may be identified. The leading edge window may be based on, at least in part, the noise estimation level and the channel IR energy level.
Systems and methods for optimizing message notification timing based on geographic location
Systems and methods are provided for timing message notifications to be provided to mobile device users based on their respective geographic locations with respect to a targeted content area. The timing of message notifications may be controlled in order to optimize the chances of delivering targeted content to a mobile device user based on the current geographic location of the user's device relative to a targeted content area. As the particular client application may not be actively executing at a time when the user's device happen to be located within a targeted content area, a general message notification sent to the user's device, which may be displayed at any time, may increase the likelihood that the user will launch the client application when it is not already executing at the device and thereby, allow targeted content to be delivered to the user's mobile device at the appropriate time and location.
Mobile device and method for automatic connectivity, data offloading and roaming between networks
Embodiments of a mobile device and methods automatically connecting to a Wi-Fi Hotspot 2.0 are generally described herein. In some embodiments, subscription information for one or more service providers (SP) that operate Wi-Fi networks is stored in a subscription data object of the mobile device. The subscription information includes home service provider information, policy information and pre-provisioned credentials. The mobile device may be configured to determine, without user interaction, if the subscription information is applicable to an available Wi-Fi network and perform without user interaction, an extensible authentication protocol (EAP) based authentication using the pre-provisioned credentials with the available Wi-Fi network to establish a Wi-Fi connection with the available Wi-Fi network. This automatic connectivity may allow a mobile device to roam across Wi-Fi hotspots of Wi-Fi networks and offload traffic to Wi-Fi networks.
Method and apparatus for controlling wireless personal area network (PAN) device
A method of controlling a wireless personal area network (PAN) device, such that the PAN device performs at least one from among a coordinator role, a router role, and an end device role in a plurality of networks by using a single physical layer includes setting a first role corresponding to a first network and a second role corresponding to a second network; acquiring activation interval information of the first network and the second network based on the first role and the second role that are set in correspondence to the first network and the second network, respectively; performing the first role during the activation interval of the first network based on the acquired activation interval information; and switching the first role to the second role and performing the second role during the activation interval of the second network.
System and method for applying extended accessing barring in wireless communication system
A system and a method that employs Extended Access Barring (EAB) when a Machine Type Communication (MTC) device performs an attempt to access an evolved Node B (eNB) in a wireless communication system are provided. When User Equipment (UE) supporting MTC, an MTC device, performs an attempt to access a network, the system and method determines whether it can access the network and performs the access procedure. The system and method can control the operations of UE that performs an attempt to access a network, thereby preventing excessive access.
System and method for automatic selection of audio configuration settings
In one embodiment the present invention includes a circuit for automatically adjusting an output of an audio device. The circuit includes a memory circuit, a detector circuit, a control circuit, and an output circuit. The memory circuit stores configuration information. The detector circuit detects environment information related to an environment in which the apparatus is present. The control circuit selects selected configuration information from the memory circuit according to the environment information detected by the detector circuit. The output circuit receives an input audio signal and the selected configuration information, modifies the input audio signal according to the selected configuration information, and generates an output audio signal corresponding to the input audio signal as modified according to the selected configuration information.
Conversation detection apparatus, hearing aid, and conversation detection method
A conversation detection apparatus uses a head-mounted microphone array to accurately determine whether a speaker in front is a conversing person or not. A conversation detection apparatus (100) includes a self-speech detection section (102) that detects a speech of a wearer of a microphone array (101), a front speech detection section (103) that detects a speech of a speaker in front of the microphone array wearer as a speech in front direction, a side speech detection section (104) that detects a speech of a speaker residing at at least one of right and left of the wearer as a side speech, a side direction conversation establishment degree deriving section (105) that calculates a conversation establishment degree between the speech of the wearer and the side speech, based on detection results of the speech of the wearer and the side speech, a front direction conversation detection section (106) that determines presence/absence of conversation in front direction based on a detection result of the front speech and a calculation result of the side direction conversation establishment degree, and an output sound control section (107) that controls directivity of speech heard by the hearing aid wearer, based on the determined presence/absence of conversation in front direction.
Method and system for improving quality of audio sound
In one embodiment, a method and system includes: synchronizing the timing of the change of a clock frequency based on the state of an output subsystem for driving an output transducer.
Test device and test method for active noise reduction headphone
The present invention discloses a test device and test method for the noise reduction headphone. The test device comprises: an enclosed cavity, a noise source, a test panel, a measuring microphone and a measure comparison module connected with the measuring microphone. The sound emitted from the noise source is sealed within the enclosed cavity. The test panel can cooperate with the noise reduction headphone to form a coupling cavity in the test. The test panel has a sound guiding hole in the common part with the enclosed cavity for transmitting the sound of the noise source into the interior of the coupling cavity. The test panel also has a mounting hole, and the measuring microphone is mounted on the mourning hole towards the direction of the coupling cavity. The measuring microphone records noise signals before and after the noise reduction function of the noise reduction headphone is activated. The measure comparison module receives the signals recorded these two times by the measuring microphone and performs comparison processing to obtain noise reduction amount of the noise reduction headphone. The technical solution of the present invention solves the problem of noise pollution caused by high-power external noise sources to the surrounding environment during the test process of noise reduction amount of the headphone, meanwhile, no special shielding room is required, and the requirement on test environment is relieved.
Coaxial speaker system having a compression chamber with a horn
Coaxial two-way or more loudspeaker system (1) comprising a low range electro-dynamic transducer (2) and a high range transducer (3) with compression chamber including a whole horn, mounted in a coaxial and frontal with respect of the low range transducer (2).
Unidirectional mechanical amplification in a microphone
A unidirectional active microphone that includes a diaphragm, coil, and piezoelectric component. An electrical circuit provides amplification to the coil. The piezoelectric component produces unidirectional coupling between coil and diaphragm. The microphone is unidirectional in that the amplification is provided solely to the coil and is not transferred to the diaphragm.
Audio systems and methods employing an array of transducers optimized for particular sound frequencies
Systems and methods for generating sound, detecting sound, and generating and detecting sound are provided. An array of audio transducers can be provided whereby each audio transducer in the array can be optimized for a narrow range of sound frequencies. When operating at or close to its resonant frequency, a transducer can generate (and/or detect) sound with a higher efficiency and less distortion as compared to other frequencies. Accordingly, sound may be divided into component signals such that each transducer is only responsible for generating (and/or detection) sound close to its resonant frequency. This sound reproduction (and/or detection) technique can increase efficiency, and therefore, can increase the total output volume that an array can generate using a given amount of input power when generating sound (and/or increase the total output power that an array can generate using a given amount of input volume when detecting sound).
Portable sound system
A system for enhancing sound provided by a pair of speakers relative to a listener includes a support structure, a first panel, and a second panel. The first panel is a material having a sound reflective surface and is disposed upright relative to the ground and the listener by the support structure. The first panel extends between a first area proximate a first speaker and a second area proximate the listener. The second panel is a material having a sound reflective surface and is disposed upright relative to the ground and the listener by the support structure. The second panel extends between a third area proximate a second speaker and a fourth area proximate the listener. The first panel and the second panel are shaped such that sound waves emitted laterally from the first speaker and the second speaker are reflected and focused toward the listener.
Acoustic transducer assembly
An acoustic transducer assembly is disclosed. It comprises a layer of support material. An electric circuit is integrated with the layer of support material. A plurality of transducers are mounted on the layer of support material to form at least part of an array of transducers A recess or aperture is provided between a pair of the transducers of the array of transducers. The recess or aperture can comprise a recess or aperture of the support material between a pair of transducers of the plurality of transducers mounted on the layer of support material. The layer of support material can be rigid or flexible. A rigid support can be used for supporting at least one transducer of the plurality of transducers.
Apparatus and method for long playback of short recordings
A method and apparatus for providing long playback of short recordings are disclosed. An example method includes recording audio for a time period that is less than a maximum recording time, receiving an indication that the audio is to be played back, playing the audio back for a duration corresponding to the time period, determining the audio is to be repeated, and responsive to determining that the audio is to be repeated, at the end of the time period duration, playing the audio back multiple times for a preset time or preset number of repetitions.
Autonomous mixer for devices capable of storing and playing audio signals
An apparatus and method for autonomously mixing multiple devices capable of storing and playing audio signals is provided. Multiple devices can be mixed into one standard stereo signal that can then be played on any sort of powered speakers or amplifier. The apparatus is capable of receiving multiple audio inputs and can combine multiple iPods®, iPhones®, MP3 devices, or other devices capable of storing and playing audio signals, such that more than one device can be played at one time. No human intervention is required to control the device when the device is in autonomous mode. The autonomous mode can include random song playback using multiple devices.
Method of controlling audio recording and electronic device
A method of controlling audio recording using an electronic device and an electronic device are described. The electronic device comprises a microphone arrangement having a directivity pattern. A target direction relative to the electronic device is automatically determined in response to sensor data representing at least a portion of an area surrounding the electronic device. The microphone arrangement is automatically controlled in response to the determined target direction to adjust an angular orientation of the directivity pattern relative to the electronic device.
Signal source localization using compressive measurements
In one aspect, a method for performing signal source localization is provided. The method comprises the steps of obtaining compressive measurements of an acoustic signal or other type of signal from respective ones of a plurality of sensors, processing the compressive measurements to determine time delays between arrivals of the signal at different ones of the sensors, and determining a location of a source of the signal based on differences between the time delays. The method may be implemented in a processing device that is configured to communicate with the plurality of sensors. In an illustrative embodiment, the compressive measurements are obtained from respective ones of only a designated subset of the sensors, and a non-compressive measurement is obtained from at least a given one of the sensors not in the designated subset, with the time delays between the arrivals of the signal at different ones of the sensors being determined based on the compressive measurements and the non-compressive measurement.
Unified management and control of users and devices of a service network
A unified control (UC) interface is configured for use with a portable computing device in part to manage and control access and personalization of a service network including managing automatic user and device access to subscribed to services. The UC interface of an embodiment can be used to display an overview of a service network, including authorized users, authorized devices, and/or associated settings. The UC interface of one embodiment can be used with a portable computing device in part to enable an authorized user to manage access and/or programming personalization on a per user and/or device basis.
System and method for displaying both multimedia events search results and internet search results
A system and method for presenting search results, including receiving a set of search results corresponding to a search query. The search results include: first results and second results. The first result corresponds to one or more time-bounded events, scheduled for showing on one or more television channels, that match the search query, and include links to an online application for accessing additional information about the one or more time-bounded events. The second results correspond to Internet accessible documents that satisfy the search query, and include links to the Internet accessible documents that satisfy the search query. The method also includes presenting the first and second results in a single web browser window.
Suggestive content based on habit
Suggestions for content are based on either designation by or a habit of a user. Favored genres of content are determined at different times of day. Should content be requested at a particular time of day for which no favored genre of content is determined, then one of the known favored genres of content is suggested.
Image display apparatus and method for displaying text in the same
A method of controlling an image display apparatus, and which includes receiving, via an interface unit of the image display apparatus, an input signal indicating at least one mobile terminal is connected to the image display apparatus; receiving, via the interface unit of the image display apparatus, text information input on the mobile terminal during reproduction of a video displayed on the image display apparatus; displaying the text information on a display unit of the image display apparatus; and displaying, on the display unit, a timeline indicating a time length of the displayed video and indication information indicating when the text information was input on the displayed timeline.
Method and apparatus for providing and receiving user interface
In a method of providing/receiving a user interface between a user interface client and a user interface server, when the user interface server encodes information on a plurality of user interface scenes in a multimedia data format and transmits the encoded information to the user interface client. The user interface client receives and reproduces the multimedia data so that a user interface may be displayed to which a variety of effect are applied considering individual characteristics of the user interface client such as performance of the user interface client and user preference.
Receivers for television signals
A television signals receiver for receives and stores television signals encoded at a variable data rate. Time information is generated based on the time of receipt of the signals that defines the duration of the television signals when output in decompressed form at a substantially constant data rate. The received signals are then written to a file on a hard disk 13 in received order together with the time information. The time information of signals stored in the file is monitored and old signals are deleted from the file such that the file stores signals corresponding to a predetermined period of time.
Data logging for media consumption studies
A method for data logging in a panel media consumption study includes broadcasting an attraction signal by a device associated with a panelist during display of media on a first media device in an area of interest, the media for consumption by the panelist; receiving the attraction signal at a receiving device in the area of interest, determining information related to the received attraction signal, determining a characteristic value of the information; identifying the device of the panelist as at a first location within the area of interest based on the characteristic value of the information; and logging data related to the display of media as panel media consumption data.
Using distributed local QoS optimization to achieve global QoS optimization for video conferencing services
A media gateway (MG) that services a plurality of client devices, may be handled at least a portion of video conferencing (VC) processing during a VC call between at least one of said plurality of client devices and at least one other VC client. The portion of the VC processing handled by the media gateway may be offloaded from a centralized VC multipoint control unit (MCU). The MG may handle one or more VC MCU functions, which may comprise video conferencing call control and/or management and/or audio/video (AV) transcoding. The MG may perform localized quality of service (QoS) management, to select, and adaptively control and/or configure resources and/or local links used in the MG and/or in VC clients or neighboring MGs connected to the MG, during VC operations, such as in generating, handling, and/or communicating data or content exchanged during VC calls.
Method and system for staggered statistical multiplexing
In a multi-channel video transmission system in which channel video segments are operated on by corresponding channel video encoders to encode the video segments into frames organized into groups of defined frame types, an apparatus and method to cause a temporal staggering for the processing of a specific frame type among the various channels. In one preferred embodiment, the apparatus includes a frame counter to synchronize reset signals associated with the corresponding channel video encoders and a means for providing a timing offset to channel video encoders corresponding to a selected frame stagger for a particular corresponding channel.
Method and apparatus for selecting among multiple tuners
A system or method selects among multiple tuners to tune a particular channel. A request is received to tune a first channel. In response to this request, a first tuner is assigned to tune the first channel. A request is received to tune a second channel. If the program tuned by the first tuner is not being recorded, the first tuner is assigned to tune the second channel. If the program tuned by the first tuner is being recorded, the second tuner is assigned to tune the second channel.
Method of adjusting a display position based on user orientation
A method of operating a vehicle's display system is provided, where the system monitors the user's position within the vehicle's seat and automatically adjusts the location of the display to compensate for variations in the size or seating position of the user, thereby helping to alleviate the eye strain, fatigue, neck and back pain that often accompany the improper use of a monitor for an extended period of time.
Methods, systems, and media for media playback
Methods, systems, and media for media playback are provided. In some implementations, the method comprises: receiving location information indicating proximities of a mobile device with a plurality of media playback devices; determining that the mobile device is within a predetermined proximity of a first media playback device; transmitting first instructions to the first media playback device that cause a media content item to be presented on the first media playback device; determining that the mobile device is within the predetermined proximity of a second media playback device and is no longer within the predetermined proximity of the first media playback device; transmitting second instructions to the first media playback device that cause the first media playback device to stop presenting the media content item and third instructions to the second media playback device that cause the media content item to be presented on the second media playback device.
Method and apparatus for multi-experience metadata translation of media content with metadata
A method or apparatus that incorporates teachings of the present disclosure may include, for example, a method for retrieving a plurality of sensory information from an environment of a device. A digital representation of the environment of the device is identified corresponding to the plurality of sensory information from the environment of the device. A media presentation element of the device associated with media content of the device is identified. A user interface of the media presentation element is adapted to modify a presentation of the media content by the media presentation element of the device according to the digital representation of the environment of the device. Other embodiments are disclosed.
Recording and publishing content on social media websites
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for recording and publishing content on social networking websites and other websites include providing an imbedded link on a social networking webpage to media recorder software stored on an external server system, invoking the media recorder software within a displayed instance of the social networking webpage through an application programming interface for the social networking webpage, receiving a video stream defining video captured using the media recorder software at the external video management server system, generating and storing a video file using the received video stream at the external server system, selecting the stored video file for distribution via one or more communication networks, and providing the stored video file for display within displayed instances of webpages hosted on external web server systems.
Method and system for error robust audio playback time stamp reporting
A method and system for resynchronizing an embedded multimedia system using bytes consumed in an audio decoder. The bytes consumed provides a mechanism to compensate for bit error handling and correction in a system that does not require re-transmission. The audio decoder keeps track of the bytes consumed and periodically reports the bytes consumed. A host microprocessor indexes the actual bytes consumed since bit errors may have been handled or corrected to a predetermined byte count to determine whether resynchronization is necessary.
Broadcasting receiver and a method of determining an operation mode of broadcasting receiver
A broadcasting receiver and a method of determining an operation mode of broadcasting receiver are disclosed. A host device transmits the resource information including A-mode resource information. And a POD receives the resource information and determining an operation mode based on the received resource information and operation mode setting information. The broadcasting receiver can protect content data received from all the transfer protocols including the wired/wireless network and the IP protocol, using the conditional access provided from the conventional cable card. The broadcasting receiver determines whether the host supports the A-mode and determines a method for receiving broadcast data, such that the operation mode of the broadcasting receiver can be properly established according to the determined result.
Motion image encoding apparatus, motion image decoding apparatus, motion image encoding method, motion image decoding method, motion image encoding program, and motion image decoding program
A motion image decoding apparatus for generating a prediction signal in blocks is provided with a low-resolution block decoder for generating a low-resolution block with a smaller number of pixels than that of a prediction block by decoding encoded data. The motion image decoding apparatus is further provided with an enhanced block generator for enhancing a low-resolution block generated by a decoded low-resolution block to a block with the same number of pixels as that of the prediction block using a decoded image. Furthermore, the motion image decoding apparatus is provided with a block divider for generating plural small blocks by dividing an enhanced block based on a predetermined division rule and a small block predictor for generating a predicted small block of a small block using a decoded image and the plural small blocks.
Motion vector predictor candidate clipping removal for video coding
This disclosure describes techniques for coding a video block based on an unclipped version of a motion vector predictor candidate. The techniques include determining a motion vector predictor candidate list including motion vector predictor candidates from neighboring video blocks without clipping the motion vector predictor candidates. More specifically, if one of the motion vector predictor candidates points to a prediction block located outside of a reference picture boundary relative to the current video block, the techniques allow an unclipped version of the motion vector predictor candidate to be included in the candidate list. The current video block is then coded based on a determined unclipped motion vector predictor candidate of the candidate list. Elimination of the motion vector predictor candidate clipping process reduces complexity at both the video encoder and the video decoder.
Motion vector calculation method
When a block (MB22) of which motion vector is referred to in the direct mode contains a plurality of motion vectors, 2 motion vectors MV23 and MV24, which are used for inter picture prediction of a current picture (P23) to be coded, are determined by scaling a value obtained from averaging the plurality of motion vectors or selecting one of the plurality of the motion vectors.
Interpolation of video compression frames
Coding techniques for a video image compression system involve improving an image quality of a sequence of two or more bi-directionally predicted intermediate frames, where each of the frames includes multiple pixels. One method involves determining a brightness value of at least one pixel of each bi-directionally predicted intermediate frame in the sequence as an equal average of brightness values of pixels in non-bidirectionally predicted frames bracketing the sequence of bi-directionally predicted intermediate frames. The brightness values of the pixels in at least one of the non-bidirectionally predicted frames is converted from a non-linear representation.
Efficient rounding for deblocking
The present disclosure relates to deblocking filtering which is applicable to smoothing the block boundaries in an image or video coding and decoding. In particular, the deblocking filtering is either strong or weak, wherein the clipping is performed differently in the strong filtering and the weak filtering.
System and method for randomly accessing compressed data from memory
A method facilitating random access to segments of compressed data stored in memory includes the steps of receiving a series of data segments, encoding the series of data segments into a series of compressed data segments of variable segment sizes, storing the series of compressed data segments in a memory, and generating a locator for each of the compressed data segments. Each locator is indicative of the location of an associated compressed data segment in the memory. A method for randomly accessing a segment of compressed data includes receiving a request for a compressed data segment, retrieving a locator associated with the requested segment, using the retrieved locator to locate the requested segment in the memory, and retrieving the requested segment from the memory. Thus, compressed data segments can be decoded in a different order than the order they were encoded in. Systems for implementing the methods are also disclosed.
Moving image coding device
This moving image coding device has an update region detection unit, a coding target region detection and cache update unit, and a coding unit. The update region detection unit compares a reference frame and a current frame, and detects an update region that a pixel value changed. The coding target region detection and cache update unit replaces an image of an update region in the reference frame with an image in a cache frame, and thereafter, detects a region that a pixel value changed as a coding target region and stores an image of a region that a pixel value did not change for a predetermined past period in the image of the update region in the reference frame before the replacement, into the cache frame as an image of a stable region. The coding unit codes an image of the coding target region and cache information.
Intra prediction modes
New intra angular prediction modes and methods for decoding are offered for providing greater accuracy when processing predictions of digital video data blocks. One new method considers predicting a current prediction sample by taking the linear interpolation of two previously reconstructed reference samples that lay along a common angular line. Another new method offers a method for making previously unavailable samples from a neighboring block available as reference samples when predicting a current prediction sample. Another new method considers a new combined intra prediction mode that utilizes a local mean to predict a current prediction sample. And a new decoding method offers to rearrange the order in which video data blocks are predicted based on the intra prediction mode used for predicting the video data blocks.
Algorithms for determining bitrate for a statistical multiplexing system to ensure stream alignment from encoders to the multiplexer
A statistical multiplexer (statmux) system for encoding and multiplexing multiple channels of digital television data is provided that limits dropped bits due to misalignment of bit rate allocations to the encoders. Without such a system, if for example an encoder is allotted 0 bits during a first time period and 20 kilobits during a second time period, if the encoder jumps ahead from the first period to the second time period allocation, the 20 kilobits could be output during the 0 bit output allocation time period. This can cause buffer overflow downstream if other encoders are outputting at their maximum rate. To limit such misalignment, a maximum percentage increase of an encoder's bitrate allocation is set from time period to time period based on a formula to prevent bits from being dropped when misalignment occurs.
Method and device for the creation of pseudo-holographic images
A method and a device enable the creation of three-dimensional images with more than two perspectives (e.g. pseudo-holographic images), especially to be reproduced with the aid of an autostereoscopic display or an autostereoscopic screen, from fed images having, in particular, only two perspectives, e.g., a left and a right image channel. Also, a related device creates and reproduces three-dimensional images having more than two perspectives, especially in the form of an autostereoscopic multi-user visualization system.
System for correcting RPC camera model pointing errors using 2 sets of stereo image pairs and probabilistic 3-dimensional models
A modeling engine (ME) for generating or “bootstrapping” a three dimensional edge model (3DEM) from two stereo pairs of images and correcting engine (CE) for correcting a camera model associated with an image are provided. The ME back projects edge detected images into 3DEMs using camera models associated with the stereo images, updates and stereo updates voxel probabilities in the 3DEMs with back projections of the edge detected images, and then merges the 3DEMs together to create a “sparse” 3DEM. The CE calculates a registration solution mapping an edge detected image of an image to an expected edge image. The expected edge image is a projection of a 3DEM using a camera model associated with the image. The CE corrects the camera model by applying the registration solution to the camera model based on determining whether the registration solution is a high confidence registration solution.
Real-time 3D reconstruction with power efficient depth sensor usage
Embodiments disclosed facilitate resource utilization efficiencies in Mobile Stations (MS) during 3D reconstruction. In some embodiments, camera pose information for a first color image captured by a camera on an MS may be obtained and a determination may be made whether to extend or update a first 3-Dimensional (3D) model of an environment being modeled by the MS based, in part, on the first color image and associated camera pose information. The depth sensor, which provides depth information for images captured by the camera, may be disabled, when the first 3D model is not extended or updated.
Image processing apparatus, image processing method, and program
There is provided an image processing apparatus including a first polarizing unit that has a first polarization region and a second polarization region to transmit different polarized light corresponding to different viewing point images, a second polarizing unit that includes a third polarization region to transmit only transmission light of the first polarization region, a fourth polarization region to transmit only transmission light of the second polarization region, and a total transmission region to transmit the total transmission light of the first polarization region and the second polarization region, an imaging element, and an image processing unit that executes signal processing with respect to an output signal of the imaging element. The image processing unit executes correction processing to generate a two-dimensional image and executes image conversion of the two-dimensional image to generate a left eye image and a right eye image for three-dimensional image display.
System and method for relative storage of video data
System and method for compressing and decompressing of differentially encoded video streams. I-frames of the encoded video stream may be relatively compressed and decompressed, thereby reducing video data size of an already encoded video stream. Compression and decompression may be lossless processes and may typically require relatively low processing power and small memory sizes.
Information processing apparatus, computer-readable storage medium, and method for sending packetized frequency components of precincts of image data to another device
An information processing apparatus which sends image data subjected to line based wavelet transformation to another device is disclosed. The apparatus includes: a storing means for splitting the image data supplied in units of precincts that are the set of lines to be a unit of processing for the line based wavelet transformation for every frequency component, and storing a plurality of precincts of image data for every frequency component; a packetizing means for reading and packetizing the plurality of the precincts of image data stored by the storing means for each of the frequency components; and a sending means for sending the plurality of the precincts of image data packetized by the packetizing means for each of the frequency components to the another device.
Crosstalk reduction in multiview video processing
In one example, a method includes identifying a first set of pixels in co-located pairs in a corresponding pair of multiview image frames for which the co-located pairs have a disparity between the pixels that is greater than a selected disparity threshold. The method further includes identifying a second set of pixels in at least one of the image frames that are within a selected distance of an intensity transition greater than a selected intensity transition threshold. The method further includes applying crosstalk correction to pixels that are identified as being in at least one of the first set and the second set.
Video encoder, video decoder, method for video encoding and method for video decoding, separately for each colour plane
High-fidelity video coding nowadays tends to adopt the RGB coding for directly reducing RGB inter-color redundancy without color space conversion. A known method uses a blockbased inter-color compensation algorithm for removing inter-color redundancy on RGB color planes by defining the correlation between color planes within each coding block as a linear model of slope and offset parameters, codes the base plane block and then predicts the other two color blocks from the base plane block. However, for most coding blocks the texture within a component block varies quite much. A new method for improved video coding uses adaptive segmentation of the base color component block, corresponding segmentation of the other color component blocks and individual slope and offset parameters for predicting each segment.
System to detect failed pixels in a sensor array
A system to test operation of an optical sensor is disclosed. The optical sensor includes one or more photosensitive devices configured to convert light to electrical signals. A test light source is included within the housing of the optical sensor. The test light source is periodically pulsed on to emit radiation at a sufficient intensity to saturate each of the photosensitive devices. Each of the photosensitive devices generates a signal corresponding to the intensity of light detected at that device. A logic circuit uses the signals corresponding to the intensity of light to identify whether each of the photosensitive devices is performing at an acceptable level.
Encoding apparatus, decoding apparatus, encoding method, and decoding method
An encoding apparatus encodes image data using a picture order count (POC) that indicates a display order of a picture. The encoding apparatus includes a remainder calculating unit that calculates a remainder by dividing an absolute frame number counted from an instantaneous decoding refresh (IDR) picture by a divisor which is a number of reference frames in one POC cycle, and a remainder code converting unit that coverts the remainder calculated by the remainder calculating unit into a code. A decoding apparatus decodes image data using the POC. The decoding apparatus includes a remainder extracting unit that, when random access decoding is performed, extracts a remainder by decoding a remainder code added to a picture at a random decoding start position, and an initializing unit that initializes an input value of a decoding process for the POC, by using the remainder extracted by the remainder extracting unit.
Digital information recording apparatus, reproducing apparatus and transmitting apparatus
A digital information recording apparatus includes a recording circuit for recording information of a retention period included in the digital information and indicating a period for permitting the digital information to be held in the recording medium, starting with a time at which the digital information is recorded on the recording medium; and information of a playback permission period included in the digital information and indicating a period for permitting the digital information to be played back starting with a time at which the information is reproduced initially following recording of the digital information on the recording medium, permitting temporary recording or copying for the information permitted for “copy never” or “copy one generation.”
Systems and methods for controlling media recording devices via a media recorder proxy device
Methods and systems are disclosed that include receiving data at a proxy device specifying a first command to record media content at a first media recording device. In one embodiment, a second command is sent from the proxy device to the first media recording device to record the media content. In response to the second command, the first media recording device records the media content in a first file format. In one embodiment, a third command is sent from the proxy device to a second media recording device to record the media content. In response to the third command, the second media recording device records the media content in a second file format that is different than the first file format. In one embodiment, the second file format is compatible with a portable device.
Information processing apparatus, moving picture abstract method, and computer readable medium
An image processing device, and associated method and computer program product, includes a user interface control unit that causes respective appearance materials in an image portfolio to be displayed on a display. Respective appearance materials are displayed in a spatial relationship. The user interface display control unit changes respective relationship values between the respective appearance materials in response to a change in the spatial relationship received as input to the user interface display control unit.
Method and system for providing information from a program guide
A method for displaying data from a program guide. Based on program metadata from a program guide, a display is caused to be presented on a display device that identifies a current status of a first media controller and a second media controller. The current status includes data identifying a first program currently being provided by the first media controller and a second program currently being provided by a second media controller.
High-dynamics image transmission system, encoding and decoding units and methods therefor
A high dynamic picture transmission system is provided. The transmission system includes a coding unit configured to generate a standard bitstream and at least a second bitstream. The standard bitstream coding the pictures such that the luminance of each pixel is coded with a standard dynamic, and the second bitstream contains the information necessary to reconstruct the luminance of high dynamic pictures from the coded luminance with the standard dynamic contained in the standard bitstream.
Monitoring camera system and control method for monitoring camera system
There is provided a signal processing device including a signal generation unit that generates a control signal for controlling an imaging device connected via one cable, a signal superimposition unit that superimposes the control signal generated by the signal generation unit on a video signal received from the imaging device via the cable without an influence on display of a video corresponding to the video signal, and a transmission unit that transmits the signals superimposed by the signal superimposition unit to the imaging device via the cable.
Image processing apparatus and method therefor
Image processing is performed for an image recording apparatus which records an image by arranging, on a recording medium, dots of a plurality of types of dot structures having different arrangements of color materials to be used. A dot arrangement signal which corresponds to an input color signal and represents the arrangement of dots of the plurality of types of dot structures is generated. Image data which arranges dots of the plurality of types of dot structures on a recording medium based on the dot arrangement signal is output.
Information processing apparatus, information processing system, information processing method, and computer-readable storage medium that assign priority information indicating priority between areas in an overlapping area
An information processing apparatus include a priority information assigning unit configured to assign priority information indicating priority between a first area and a second area of a recording medium in an overlapping area of the areas to at least one of gloss-control plane data and clear plane data. The gloss-control plane data is used for specifying the first area to which a surface effect is to be applied and specifying a density value corresponding to a type of the surface effect. The clear plane data is used for specifying the second area in which a transparent image is to be formed and specifying a density value of the transparent image. The apparatus also includes a clear toner plane generating unit configured to generate clear toner plane clear toner plane data based on the gloss-control plane data and the clear plane data.
Palette-based image editing
Methods, apparatus, and non-transitory computer-readable storage media for editing the colors of objects or regions in digital images. A method for editing images using a color palette is provided. A color palette is described that may be suitable for editing images, which may include specified objects or regions in images. The color palette may display image-specific colors identified using image-dependent techniques described herein. These color palettes may also modify the colors in the image corresponding to the displayed colors in the color palette interface. The method may implement structure-preserving techniques that preserve the structure of the color histogram of the image, thus preserving the natural look of the original image.
Image processing method, image processing device, and program
Provided is an image processing method wherein an edge is detected from an image to which a sharpening process is to be applied, and on the basis of a length of the edge which is present near a pixel to which the sharpening process is to be applied, the strength of the sharpening process to the pixel is determined.
Method and apparatus for enabling parallel processing of pixels in an image
A method, non-transitory computer readable medium, and apparatus for enabling parallel processing of pixels in an image are disclosed. For example, the method performs, via a multiple core processor, a one-dimensional error diffusion on the pixels in the image to reduce a number of bits per pixel to a value lower than an initial number of bits per pixel and greater than one, and performs a two-dimensional error diffusion on the pixels in the image that have undergone the one-dimensional error diffusion, to reduce the number of bits per pixel to one bit per pixel.
Device and method for determining color of output image in image forming apparatus
In a case where image processing, in which a ratio of the number of color pixels greatly fluctuates, is executed after performing charging determination, an output result might not match a result of the charging determination. There is provided a device for determining a color of an output image in a case where an image to be printed is printed with an additional image attached thereto, the device including: a unit configured to divide the image to be printed into blocks of a predetermined size; a unit configured to calculate an average value of color components of pixels included in the block; a correction value calculation unit configured to correct a calculated average value using a correction value corresponding to the additional image; and a color/monochrome determination processing unit configured to determine, based on the corrected average value, whether the block is a color block or a monochrome block.
Device, method, and scanner correcting document image using correcting mesh constructed according to vertical and horizontal boundaries and adjusted extended filtered lines
Embodiments of the present invention provide a device and method for correcting a document image and a scanner. Wherein the device includes: an extracting unit configured to extract boundaries in a first direction of the document image and extract lines in the first direction according to a content of the document image, a filtering unit configured to filter the extracted lines, a constructing unit configured to extend and adjust the filtered lines and construct a correcting mesh, and a correcting unit configured to perform correcting according to the correcting mesh. An accurate correcting model can be constructed by taking document boundaries and document contents into account in constructing the correcting model and constructing a correcting mesh after filtering, extending and adjusting the extracted lines, thereby effectively eliminating distortion in the document image.
Solid-state imaging apparatus with each pixel including a photoelectric conversion portion and plural holding portions
A solid-state imaging apparatus including a plurality of pixels each including: a first holding portion for holding signal carriers from a photoelectric conversion portion; an amplifying portion for amplifying and reading a signal based on the signal carriers generated in the photoelectric conversion portion; and a carrier discharging control portion for discharging charge carriers in the photoelectric conversion portion to an OFD region, and having a carrier path between the photoelectric conversion portion and the first carrier holding portion, in which the solid-state imaging apparatus further includes a second carrier holding portion electrically connected with the first carrier portion in parallel through a first transfer unit, when viewed from an output node of the photoelectric conversion portion, thereby smoothing an movie imaging without causing discontinuous frame while suppressing generation of noise mixing into the charge carrier holding portion.
A/D converter and solid-state imaging apparatus with offset voltage correction
Provided is an A/D converter including an input terminal, a reference signal line for supplying a reference signal which changes temporally, a comparator, a correction capacitor connected to an inverting input terminal of the comparator; and an output circuit which outputs digital data corresponding to an analog signal input to the input terminal. In a first state in which a total voltage of a first analog signal and an offset voltage of the comparator is held in the correction capacitor, a second analog signal input to the input terminal is supplied to a non-inverting input terminal of the comparator, and the second analog signal or the total voltage is changed using the reference signal, thereby outputting, from the output circuit, digital data.
Systems and methods for providing shiftable column circuitry of imager pixel arrays
This is generally directed to systems and methods for providing shiftable column circuitry for a pixel array of an imaging system. Columns of a pixel array can be switchably coupled (e.g., through multiplexers) to their default column circuitry as well as coupled to one or more instances of a neighboring column's column circuitry. In response to an instance of default column circuitry being identified as defective, its corresponding column may “shift” and choose to couple to the neighboring column circuitry. Similarly, all following columns may also shift and couple to a neighboring column circuitry. In some embodiments, the defective column circuitry can be identified during wafer testing and identifying information (e.g., an address) of the defective column circuitry stored in memory. The identifying information may then be accessed from memory and, during an image signal readout phase, used to suitably shift the columns to avoid the defective column circuitry.
Solid-state image pickup device and method of resetting the same
A solid-state image pickup device comprises for each pixel a photoelectric converter PD, an input terminal FD of a signal amplifier and a transfer switch TX for transferring an optical signal from the photoelectric converter to the input terminal. The device additionally comprises means for resetting the photoelectric converter by opening the transfer switch TX under a condition of holding the voltage of the input terminal FD to a fixed high level before storing the optical signal in the photoelectric converter PD. With this arrangement, any residual electric charge in the photoelectric converter can be eliminated without paying the cost of reducing the manufacturing yield and degrading the chip performance.
Lens shading correction system
A lens shading correction (LSC) system includes an illuminant estimator configured to calculate at least one spectral association-measurement of a current frame according to pixel data of an LSC circuit, and then to correlate the at least one calculated spectral association-measurement with spectral association-measurements of a plurality of pre-defined illuminants to determine at least one correlated illuminant. An LSC parameter generator retrieves at least one set of pre-calibrated LSC parameters from a pre-calibrated LSC parameter memory. The LSC parameter generator generates a set of LSC parameters based on the at least one retrieved set of pre-calibrated LSC parameters according to the at least one correlated illuminant.
Circuit structure for providing conversion gain of a pixel array
Techniques and mechanisms for a pixel array to provide a level of conversion gain. In an embodiment, the pixel array includes conversion gain control circuitry to be selectively configured at different times for different operational modes, each mode for implementing a respective conversion gain. The conversion gain control circuitry selectively provides switched coupling of the pixel cell to—and/or switched decoupling of the pixel cell from—a supply voltage. In another embodiment, the conversion gain control circuitry selectively provides switched coupling of the pixel cell to—and/or switched decoupling of the pixel cell from—sample and hold circuitry.
Solid-state imaging device and camera module
According to one embodiment, a solid-state imaging device includes a pixel array and a high dynamic range (HDR) synthesizing circuit 19. A pixel is configured as a small pixel group. The HDR synthesizing circuit 19 includes a valid pixel selecting unit 34, a sensitivity ratio correcting unit 35, and a calculation processing unit 36. The valid pixel selecting unit 34 selects one or more small pixels validating a use of a signal value in the HDR synthesis as a valid pixel from among the small pixel group. The sensitivity ratio correcting unit 35 executes sensitivity ratio correction on the signal value of each small pixel. The calculation processing unit 36 uses the signal value of the valid pixel among the signal values of the small pixels from the sensitivity ratio correcting unit 35 for a calculation for the HDR synthesis.
Infrared camera systems and methods for dual sensor applications
Systems and methods disclosed herein provide for infrared camera systems and methods for dual sensor applications. For example, in one embodiment, an enhanced vision system comprises an image capture component having a visible light sensor to capture visible light images and an infrared sensor to capture infrared images. The system comprises a first control component adapted to provide a plurality of selectable processing modes to a user, receive a user input corresponding to a user selected processing mode, and generate a control signal indicative of the user selected processing mode, wherein the plurality of selectable processing modes includes a visible light only mode, infrared only mode, and a combined visible-infrared mode. The system comprises a processing component adapted to receive the generated control signal from the control component, process the captured visible light images and the captured infrared images according to the user selected processing mode, and generate processed images based on the processing mode selected by the user. The system comprises a display component adapted to display the processed images based on the processing mode selected by the user.
System and method for producing color shifting or gloss effect and recording medium with color shifting or gloss effect
A double layer micro gloss image pattern is created on a recording medium by electronically creating a first electronic pattern ink, the first electronic pattern ink including a first color pair and a first pattern, the first color pair including a first high color and a first low color; electronically creating a second electronic pattern ink, the second electronic pattern ink including a second color pair and the first pattern, the second color pair including a second high color and a second low color, the second color pair being visibly different from the first color pair; electronically creating a first layer in an electronic image region by electronically painting the electronic image region using the first electronic pattern ink; electronically creating a second layer in the electronic image region by electronically painting, using the second electronic pattern ink, a second pattern; and rendering, using marking materials, the electronic image region on a recording medium such that the when the first pattern is visible, the second pattern is not visible and when the second pattern is visible, the first pattern is not visible.
Projection type display apparatus
[Task] It is to provide a projection type display apparatus which enhances the contrast performance while minimizing a reduction in the brightness by blocking a light beam which would decrease the contrast through the use of diaphragms provided in both of an illumination optical system and a projection lens.[Solution] A light source portion 1 and 2, a first lens array 4, a second lens array 5, and a superposition lens 7 constitute an illumination optical system. An illumination diaphragm 8 located in the vicinity 7 of the second lens array becomes a diaphragm aperture in a rectangular shape when being narrowed, wherein a side of the diaphragm aperture in the rectangular shape and longer side directions of the lens cells of the second lens array 5 are perpendicular or parallel to each other. A liquid crystal display device 17 modulates incident light. A projection lens 19 enlarges and projects modulation light. A projection lens diaphragm 20 becomes a diaphragm aperture in a rhombus shape when being narrowed, wherein a diagonal line of the diaphragm aperture in the rhombus shape and directions of sides of lens cells in a pupil image of the second lens array 5 which is formed in a pupil position of the projection lens are perpendicular or parallel to each other.
Digital camera with focus-detection pixels used for light metering
A digital camera (400) comprises a sensor array (410) having image pixels (I) for capturing image data during an exposure period (EP), and focus-detection pixels (F) for determining focus information in a first mode of operation. The digital camera (400) is adapted for obtaining brightness related data (v) from the focus-detection pixels (F) in a second mode of operation, during capturing of an image by means of the image pixels (I), the digital camera further comprising a controller (428) adapted for determining the exposure period (EP) based on the brightness related data (v) obtained from the focus-detection pixels (F). A corresponding method is also provided.
Fixed focus camera module with near-field image recognition
A camera apparatus includes an image sensor to output an image signal, a stop aperture, a lens assembly, and a controller. The lens assembly is disposed between the image sensor on an image side of the lens assembly and the stop aperture on an object side of the lens assembly. The lens assembly includes a plurality of lens elements that collectively induce axial chromatic aberration between red, green, and blue light. The controller is coupled to receive red, green, and blue channels of the image signal. The controller includes logic that causes the controller to use the blue channel without the red or green channels of the image signal to perform image recognition on objects captured in a near-field of the lens assembly and to use the blue, red, and green channels collectively when capturing images in a far-field of the lens assembly.
Electronic apparatus for panorama photographing and control method thereof
An image photographing device displays a preview panoramic image and data regarding moving velocity and direction of the image photographing device during panorama photographing in real time. The image photographing device includes a photographing unit to photograph a plurality of images, an image processing unit to convert the images photographed by the photographing unit into preview image data and to generate preview panorama data using the preview image data, and a display unit to simultaneously output a screen to display the preview image data, a screen to display a process of synthesizing the preview panorama data, a moving direction display screen indicating a relative difference between the moving direction of the image photographing device and a predetermined reference direction, and a moving velocity display screen indicating a relative difference between the moving velocity of the image photographing device and a predetermined reference velocity.
Image capture apparatus and method for controlling the same
An offset corresponding to an amount of geometric deformation is added to an amount of drive of an optical member due to an optical image shake correction so that the center of a reference area necessary for geometric deformation processing comes closer to the center of an imaging area. Because of this, a possibility is increased that a reference area necessary for geometric deformation processing is fully contained in an imaging area, and blurring of an image due to a motion of an image capture apparatus is effectively corrected by combining an optical image shake correction and a geometric deformation process.
Focus adjustment unit and camera system
A focus adjustment unit of the present invention comprises a lens drive section for driving the focusing lens, an image sensor for acquiring imaged data for a subject image, a control section for executing imaging operations using the image sensor by causing movement of the focusing lens, and carrying out scan operations for detecting position of the focusing lens at which a peak of image contrast occurs, a continuous shooting speed setting section for setting a speed for continuously executing exposure operations for shooting, and a limit time setting section for setting an effective limit time effective for carrying out the scan operation in accordance with a continuous shooting speed that has been set by the continuous shooting speed setting section, wherein the control section controls the scan operation so that the time that has been set up by the limit time setting section is not exceeded.
Remote control unit for an objective and for a camera
A remote control unit for an objective and a camera comprises a base part, an operating element movable relative to the base part, an evaluation and control unit for generating a control signal in accordance with the position of the operating element and an output device for outputting the control signal to an associated camera. The evaluation and control device is adapted to control a feedback device of the control unit in dependence on the position of the operating element to generate at least one feedback signal perceivable by a user.
Plant image capture device and image capture method thereof
A plant image capture device and a method thereof are provided. A first mirror is disposed at a side of an image measurement position, so as to generate an mirror image of a plant disposed on the image measurement position; a first image capture device obtains at least one image including a direct image and the first mirror image of the plant; an image processing module uses a frame of the first mirror as a feature, so as to divide the at least one image including the direct image and the first mirror image of the plant and obtain the direct image and the first mirror image of the plant; an operation processing module processes the mirror image of the plant, so as to obtain a first image of the plant.
Device for assigning a geographical position to a picture
A device for assigning a geographical position to a picture may include a photo camera module for taking the picture, a satellite positioning system receiver module for identifying geographical coordinates when the picture is taken, and a cryptographic module to sign the picture and the corresponding geographical coordinates. The device may store the signed picture and the corresponding geographical coordinates as certified geographical position of the picture.
Infrared camera with rotatable core assembly
An infrared camera with a rotatable core assembly, the infrared camera having; a main body including a body shell and a signal processor installed in the body shell; a core assembly including a core assembly housing, an infrared lens provided at the front end of the core assembly housing, and a sensing unit installed in the core assembly housing; a handle connected to the main body; and a LCD display used to display a picture and rotatably installed on one side of the main body, wherein the core assembly is rotatably connected to the front end of the body shell. The infrared camera according to the present application can switch its shooting modes among horizontal type, gun type and upright type according to the requirements of the observation by a user.
System and method for determining geo-location(s) in images
Determining GPS coordinates of some image point(s) positions in at least two images using a processor configured by program instructions. Receiving position information of some of the positions where an image capture device captured an image. Determining geometry by triangulating various registration objects in the images. Determining GPS coordinates of the image point(s) positions in at least one of the images. Saving GPS coordinates to memory. This system and method may be used to determine GPS coordinates of objects in an image.
Information processing apparatus, information processing method, and storage medium
An information processing apparatus includes an estimation unit configured to estimate a state of a plurality of objects based on image data obtained by capturing the plurality of object with an imaging unit, a selection unit configured to select an object to be extracted from the plurality of objects based on first state information that indicates the state of the plurality of objects estimated by the estimation unit, and a generation unit configured to, based on second state information that indicates a state of an object other than the selected object among the plurality of objects, generate restriction range information that indicates a range for restricting estimation processing on a state of the other object, wherein the estimation unit estimates the state of the other object based on the restriction range information.
Method and video device for accessing information
A method and video device are disclosed for accessing information. In an embodiment of the present invention, part of data included in a title, being played, read from a storage medium or extracted from a broadcast signal is extracted and sent to a server over a network, and information corresponding to the part of the data (i.e., information related to the data and complete data of the data) is received from the server and played. Rather than the part of the data, information related to a position of the data, (e.g. a time point at which the playing of the data starts within the title or a radial position or a physical address at which the data is located in the storage medium) may be sent. The data may be data that forms audio, a frame-shaped video clip or a frame-shaped picture included in the title.
Targeted television advertisements associated with online users' preferred television programs or channels
In an automatic, computer-implemented method, a selected television advertisement is presented automatically in association with a television program or channel, which in turn is selected based at least in part on information from an online user profile that contains information indicating a user's preference for that television program or channel. The television advertisement is selected based at least in part on additional information from the online user profile that is unrelated to the selected television program or channel. The selected television advertisement is presented on or during the selected television program or channel via a set-top box, which has a set-top box identifier associated with the online user profile.
Method and system for communication with a set-top box
A method and system for communication with a set-top box is disclosed. An embodiment is disclosed that receives security information and the security information has identification information for a user assigned to a set-top box, services a request to create a notification preference for the set-top box in response to successful entry of security information, establishes the notification preference for the set-top box and the notification preference has a rule for providing information in a notification on media content available to be received by the set-top box, sends the notification to the recipient in accordance with a notification preference, receives a communication for the set-top box from a user device and the communication comprises a partial command for a set-top box, interprets the partial command in view of the notification, and sends a command to the set-top box based on the partial command and the notification.
Transmission terminal, transmission system, and non-transitory computer readable storage medium
A transmission terminal includes a communication unit that communicates with an information providing device; a display control unit that displays first image data created by a photographing unit, second image transmitted from an other transmission terminal, and/or display data received from the information providing device on a display screen; a network communication unit that communicates the first image data, the second image data, and the display data with the other transmission terminal; a screen information capture unit that saves screen information on the display screen; a query unit that queries the other transmission terminal whether capturing of the screen information is allowed, and determines that capture of the screen is disallowed when no response is received within a predetermined time period; a screen editor unit that edits the screen information; and a screen information storage unit that stores the screen information edited by the screen editor unit.
Global arming method for image processing pipeline
Each unit among a pipeline of image processing units receives a new configuration vector (update), and the received new vector is only applied in sync with the Timing-derived trigger signal within a hardware-enabled time period. A hardware enable signal is logically combined with a Timing-derived triggering event signal to control a switch that applies the new received vector to the processing unit. This ensures that each image processing unit (stage) in the chain of image processing units is updated in sequence even if the CPU has output the updated configuration vectors independently of the Timing of the Data and without regard for the delay through each of the processing units. The Timing-derived triggering event is used to synchronize the application of a received configuration vector update with the receipt by the unit of a new frame of image DATA.
Scanner module and image scanning apparatus employing the same
A scanner module and an image scanning apparatus employing the same. The scanner module comprises an illuminator for illuminating light on an object to be scanned. The illuminator includes a light emitting diode, a light guide extending in a main scanning direction to change a direction of the light received from the light emitting diode, and at least one elastic member to elastically support at least one longitudinal end of the light guide. As the light guide is elastically supported by the elastic member, convex deformation or bowing of an emission face of the light guide due to thermal expansion can be reduced.
Image forming apparatus, image forming method, and non-transitory computer-readable medium storing image forming program
There is provided an image forming apparatus, including: an image forming unit; a sheet detector positioned on a sheet conveyance path at an upstream side of the image forming unit; a conveyance belt; an image detector; and a controller. The controller is configured to perform: detecting a front end of the sheet; forming a mark image to extend over the conveyance belt and the sheet; detecting the mark image; measuring a mark conveyance time; obtaining a time elapsed based on the mark conveyance time; and forming the image when the obtained time passes from the front end of the sheet is detected.
A printing apparatus includes a storage section which stores printing jobs to be printed on a recording paper sheet; a transport section which transports the recording paper sheet; a printing section which performs the printing on the recording paper sheet transported by the transport section based on one of the printing jobs stored in the storage section; an occurrence rate judging section which calculates an occurrence rate of a jam of the recording paper sheet in the transport section during the printing based on each of the printing jobs stored in the storage section, and which compares a first occurrence rate which is the occurrence rate of a first printing job stored first in the storage section with a second occurrence rate which is the occurrence rate of a second printing job stored second in the storage section; and a control section which controls the printing section.
Image reading device and method of manufacturing housing
A light guide inserted into an inclined groove is disposed so as to partially overlap with a lens unit that is fitted into a concave groove disposed parallel to the inclined groove when seen in a plan view, to regulate the separation of the lens unit from the concave groove and hold the lens unit in an insertion state by the light guide. Therefore, a fixing unit such as an adhesive agent is not required in fixedly disposing the light guide and the lens unit at a predetermined position of a frame, and a CIS module is assembled without using an adhesive agent, thereby allowing the CIS module that is easily disassembled when being discarded and that improves recycling efficiency to be provided.
Image forming apparatus
An image forming apparatus includes an image forming portion; an image reader movable between a first open position and a first closed position; an openable member movable between a second open position and a second closed position; and a supporting member. When the image reader is located at the first open position, the openable member is supported at the second open position by the supporting member. When the image reader is moved from the supported state toward the first closed position, closing of the openable member from a predetermined position closer to the second closed position than the second open position is limited by the supporting member. When the image reader is moved toward the first closed position from a limited state in which the closing of the openable member is limited by the supporting member, limitation of the openable member by the supporting member is eliminated.
Portable device with image sensor and quad-core processor for multi-point focus image capture
A multi-core processor is used in a portable device that has first and second image sensors spaced from each other for capturing images of a scene from slightly different perspectives. The multi-core processor has a first image sensor interface for receiving data from the image sensor, a second image sensor interface for receiving data from the second image sensor, multiple processing units and, the four processing units and the first and second sensor interfaces being integrated onto a single chip. The processing units are configured to simultaneously process the data from the first and second image interfaces to generate stereoscopic image data.
Communication apparatus that carries out communication with external apparatus, control method therefor, and storage medium
A communication apparatus which is capable of ascertaining whether or not it is possible to transmit image data to a transmission destination irrespective of functions it has, and notifying a user of the ascertainment result, thus enhancing convenience. A storage unit stores an address book including a plurality of addresses indicative of transmission destinations of data. A first receiving unit receives a first message from an external device. A determination unit determines whether an address of the external device that has transmitted the received first message is included in the address book. A display unit displays the address of the external device in a first display form which is different from a display form of other addresses in a case where the determination unit determines that the address of the external device is included in the address book and when the address book is displayed.
Converting audio to haptic feedback in an electronic device
In general, in one aspect, a method performed by one or more processes executing on a computer systems includes receiving an audio signal comprising a range of audio frequencies including high frequencies and low frequencies, converting a first portion of the range of audio frequencies into haptic data, shifting a second portion of the range of audio frequencies to a different range of audio frequencies, and presenting at least one of the converted first portion and the shifted second portion to a human user. Other implementations of this aspect include corresponding systems, apparatus, and computer program products.
Integrated display and management of data objects based on social, temporal and spatial parameters
An embodiment is directed to displaying information to a user of a communications device. The communications device receives a query including a social parameter, a temporal parameter and a spatial parameter relative to the user that are indicative of a desired visual representation of a set of data objects. The communications device determines degrees to which the social, temporal and spatial parameters of the query are related to each of the set of data objects in social, temporal and spatial dimensions, respectively. The communications device displaying a first visual representation of at least a portion of the set of data objects to the user based on whether the determined degrees of relation in the social dimension, temporal dimension and spatial dimension satisfy the respective parameters of the query.
Method for controlling surrounding device and communication device and computer-readable medium using the same
A method for controlling a surrounding device and a communication device and a computer-readable medium using the same are proposed. The proposed method is adapted for a communication device, and includes following procedures. Firstly, a connection with a surrounding device is established through a wireless communication function. Then, a target setting value associated with a setting of the surrounding device is stored. Further, it is determined whether the communication device receives a communication request. Moreover, when the communication device receives the communication request, the setting of the surrounding device is modified from an original setting value to the target setting value.
Bouncing animation of a lock mode screen in a mobile communication terminal
Displaying a lock mode screen of a mobile terminal is disclosed. One embodiment of the present disclosure pertains to a mobile terminal comprising a display module, an input device configured to detect an input for triggering a bouncing animation of a lock mode screen, and a controller configured to cause the display module to display the bouncing animation in response to the input for triggering the bouncing animation, where the bouncing animation comprises the lock mode screen bouncing for a set number of times with respect to an edge of the display module prior to stabilization.
Communication terminal, communication method, and program
A communication terminal includes: a communication section configured to perform non-contact communication with an external apparatus; an alarming section; and a control section configured to determine a communication state of the communication section with the external apparatus, and if the communication state is determined to be a communication error state, the control section configured to cause the alarming section to give an alarm prompting a user to change a relative position of the communication terminal with the external apparatus on the basis of communication data at the time of the communication error.
Computing device with removable processing unit
A handheld tablet computing device with a removable central processor module has a first plurality of user interface elements comprising at least a screen, a keyboard, and a pointing device, a first communications link software module resident in a read-only firmware memory chip; a first docking port located on an interior surface of a void extending inward from one of the exterior surfaces of the handheld computing device; and a user-removable processing unit comprising at least a central processor module, a data storage module, a second communications link software module, a second docking port, and a second plurality of user interface elements, the user-removable processing unit being removably coupled to the handheld computing device via connection between the first docking port and the second docking port and adapted to be removable while running.
Mobile communication terminal and method for running an application therein
A mobile communication terminal and method for running an application therein. When a user inputs a variable in an idle state, variable-related applications are displayed. When the user selects a predetermined application, the input variable is input as an input value of a predetermined input field of the selected application.
System and method for providing service by a first agent while waiting for a second agent
System and method for servicing a contact by a first agent while searching for a second agent to service the contact is provided. At least one agent attribute is used to produce a set of agent attribute values, and at least one contact attribute is used to produce a set of contact attribute values; relating agent attribute values to contact attribute values in order to search for at least one available first agent having at least a first predetermined level of matching attributes; delivering the contact to the first agent; relating agent attribute values to contact attribute values in order to search for at least one second agent having at least a second predetermined level of matching attributes, wherein the second predetermined level is greater than the first predetermined level; waiting until the second agent is available; and replacing the first agent with the second agent to service the contact.
Method and system for integrating an interaction management system with a business rules management system
In a contact center, a system for processing communication events has an interaction server for managing events waiting to be routed, a routing server for routing the events, a rules engine, and a gateway server executing rules invocation logic and interacting with the rules engine. The interaction server tracks incoming events, initiates and sends a routing request to the routing server, including a special routing object, for each event that requires conformance to business rules, the routing server, executing the routing object, sends an execution request to the gateway server, which upon receipt of the request prepares a business object model (BOM), being a set of facts upon which the rules engine executes rules appropriate to the facts, resulting in routing direction for the routing server to route the event.
Workflow management in contact centers
A method, system and computer program product are provided for monitoring a communication session in a contact center. An agent follows a structured workflow while handling the communications session, and trigger events are defined which are associated with significant steps in the workflow other than (or additional to) the connection and disconnection of the agent with the session. When a trigger event is detected indicating that the agent has reached a predefined significant step in the workflow, an event notification issues to another system of the contact center, such as a statistics package, or a supervisor workstation, or an event aggregator which receives such notifications from many agent stations. In a preferred embodiment, these event notifications are used by an automated outbound dialler to more accurately predict the time to the end of a communications session, thereby providing a better outbound dialling algorithm.
Privacy-enabled telephone directory
A privacy-enabled telephone directory is disclosed that is implemented through a contact facilitator. The contact facilitator receives a contact request from a caller which includes the name of the party to be called and disambiguation information to distinguish the called party. The contact facilitator applies the disambiguation information to entries in a disambiguation database to select the mobile telephone user corresponding to the contact request information. The contact facilitator then accesses a profile database to retrieve the called party's profile which contains directions for processing the request. Possible directions include immediately connecting the caller with the called party, batching the call, or following other specific instructions regarding the contact request. Profile instructions may be changed by the mobile telephone user at any time.
Communication of information during a call
A request is received from a user of a telephonic device to invoke an application on the telephonic device. A form is displayed to the user using the application. Information input into the form is received by the application along with an indication to submit the form information with a service request to a call handling system. A data communications session between the telephonic device and an application server of the call handling system is established using the application. The form information is provided to the application server. A telephone number of the telephonic device is identified from the form information using which a voice communications session is established with the telephonic device from an interactive voice response system of the call handling system. Voice information is exchanged with the user and text, image or video information is communicated to the user via the voice and data communications sessions respectively.
Method and apparatus for providing network based services to private branch exchange endpoints
Many of the current IMS standards and enriched services were originally designed for the individual subscribers that are serviced by the wireless network. However, the IMS standards do not fully address the problem of providing the IMS enriched services and features to users connected to a PBX. The present invention discloses a method for providing IMS enriched services and features to users connected to a PBX or an IP-PBX. Access to network services can be secured through a web-friendly interface via the IMS, enabling third-party developers, service providers and even subscribers to self-manage their service experience while the network operator retains control over network resources.
Web-hosted framework for mobile applications
Embodiments are directed towards providing a web-based framework for access and use of mobile device applications within an application stack. The mobile device includes a mobile web framework application (MWFA) that, when the mobile device boots up, seeks to connect online to a remote web-based interface manager. The remote interface manager provides a display of an application user interface to the mobile device, from which a user may access various applications that may be configured to execute at a remote device rather than on the mobile device. The user may also add to or otherwise modify the applications within the application stack.
Methods and apparatus for associating mapping functionality and information in contact lists of mobile communication devices
A mobile communication device stores a contact list which includes a plurality of contacts, and identifies a user selection to map a location of a selected contact. In response, the device reads an address from an address field of the selected contact, sends to an address geocoding server the address with a request for latitude and longitude coordinates, and receives from the address geocoding server the coordinates. When map rendering data corresponding to the coordinates is cached in memory, the device renders a map based on the map rendering data. Otherwise, the device sends to a map server the coordinates with a request for context-filtered map data, which is based at least in part on a user context independent of the location of the device. The device receives the context-filtered map data, and renders a map based on the received context-filtered map data.
Apparatus and method for driving communication terminal using proximity sensor for dialing
An apparatus and a method for driving a communication terminal are provided. A method for driving a communication terminal according to the present invention includes determining, when a proximity of an object is detected, data based on a proximity duration for which the proximity is maintained, and executing, when an execution request is detected, a function corresponding to the data. Since a specific function is executed in response to the information on the proximity of an object to the communication terminal, there is no need to display touch keys on the screen, resulting in improvement of user's convenience.
Dual beamform audio echo reduction
A telephonic device having a speakerphone function has a loudspeaker and a plurality of microphones. The plurality of microphones are coupled to a plurality of beamformers which produce a first beamform having a spatial null in the direction of the loudspeaker and a second beamform having a spatial null in the direction of near-end signals. The two beamforms are then processed to facilitate echo reduction. By comparing the beamform powers, a state of double-talk can be determined and the determination can be used to enhance echo reduction associated with speakerphone functionality.
Echo mitigation in a conference call
In an example embodiment, an example method is provided for echo mitigation in a conference call. In this method, a test audio signal is transmitted to a conference endpoint and as a result, an echo associated with the transmittal of the test audio signal is received. One or more parameters of the echo are then identified and an echo mitigation process is selected from multiple echo mitigation processes based on the identified parameters. The selected echo mitigation process is then applied.
Local streaming proxy server
A local application streaming proxy can create a virtual image of storage media, which allows cloud operators to rapidly deliver applications, or deliver any operating system remotely, while providing better security, network utilization, low power requirements, and consistent performance for streamed applications and operating systems. A station using its WiFi/LAN provides QoS guarantees (or priority) for application streaming network communications to create a consistent user experience regardless of other application bandwidth utilization. “HTTP demand paging” is also possible.
System and methods for multi-participant teleconferencing using preferred forms of telecommunication
A multi-participant teleconferencing system includes a telecommunication manager that is configured to establish telecommunication connections with participants by instructing and initiating one or more telecommunication devices (e.g., media gateway devices, email servers, web servers, multipoint control units, etc.). Participants can be enabled to provide personal preferences to the telecommunication manager. The personal preferences and other participant information can be stored on one or more storage devices as participant records. The participant records preferably include preferred forms of telecommunication for the participants. Each preferred form of telecommunication can include an indication of a preferred type of telecommunication device and/or an indication of a preferred telecommunication technology. The telecommunication manager can utilize the preferred forms of telecommunication stored on the one or more storage devices to schedule, manage, and initiate multi-participant telecommunication.
Providing relevant notifications based on common interests between friends in a social networking system
A social networking system provides relevant third-party content objects to users by matching user location, interests, and other social information with the content, location, and timing associated with the content objects. Content objects are provided based on relevance scores specific to a user. Relevance scores may be calculated based on the user's previous interactions with content object notifications, or based on interests that are common between the user and his or her connections in the social network. Context search is also provided for a user, wherein a list of search of results is ranked according to the relevance score of content object associated with the search results. Notifications may also be priced and distributed to users based on their relevance. In this way, the system can provide notifications that are relevant to user's interests and current circumstances, increasing the likelihood that they will find content objects of interest.
Social networking system
A matching network system including communication devices, servers and software which enables the provisioning of services and execution of transactions based on a plurality of private and public personality profiles and behavior models of the users, of the communication devices, of the products/services and of the servers; in combination with the software resident at the communication device level and or the local/network server level. Matching and searching processes based on a plurality of personality profiles wherein the information, communication and transactions are enabled to be matched with the user, the communication device and or the servers. The communication device is a stationary device or a mobile device, such as a portable computing device, wireless telephone, cellular telephone, personal digital assistant, or a multifunction communication, computing and control device.
Reduced latency for subresource transfer
Methods and systems for reducing web page load time are provided. A method for reducing web page load time may include determining subresources of a requested web page. The method may also include requesting the plurality of subresources in a packet. This may be a single request packet for all of the subresources of a web page. Another method for reducing web page load time may include determining subresources to be returned from a request packet. The method may also include generating and returning the subresources in response to the request packet. A system for reducing web page load time may include a subresource determiner and a subresource requester. Another system for reducing web page load time may include a subresource request determiner, a subresource generator and a subresource returner.
Systems and methods for intermediaries to compress data communicated via a remote display protocol
The present solution automatically detects the remote display protocol capabilities of the client, server and/or intermediaries to determine whether the client and server should compress the remote display protocol data or the intermediaries, and in some cases both.
System and method for using presence information
An improved system and method for communicating Presence Information. According to various embodiments, the sequence of actions undertaken in established Presence procedures are changed, and enhancements are also provided for Watcher information notifications. Upon the initiation of a Presence Service, the Presence Source starts publishing Presence Information about a Presentity using a soft-state approach. Instead of having publication occur first, the Presence Source makes a subscription for the Watcher information first or simply waits until the Presence Server contacts the Presence Source. As a result, publication occurs only when there is a demand therefor.
Multi-objective server placement determination
Methods and apparatus for determining recommended geographic server locations for online social networks by attempting to minimize user-server latency and inter-user communications latency. In an embodiment, geographic and relationship information for a plurality of users is acquired. The plurality of users may belong to one or more networks. The acquired information is transformed into a graph. A first plurality of clusters is generated with a first clustering algorithm. A second plurality of clusters is generated by iteratively examining pairs of the first plurality clusters, and swapping nodes between the examined clusters if it will reduce a total cut weight of the graph and locate each pair of nodes within a defined maximum distance from the centroid of the target cluster. In an embodiment, a method uses a joint analysis approach based upon characteristics of a plurality of existing networks.
Session analysis systems and methods
A method and system analyze session data. In some embodiments, the method accesses session data, identifies multiple sessions contained in the session data, and identifies multiple events that occurred within each of the multiple sessions. The method determines a temporal relationship between the multiple events in each session and analyzes the multiple sessions to aggregate events associated with the multiple sessions. The method then generates a graphical representation of the aggregated events.
Method for cloud-based access control policy management
A Web-based management server includes an ACP manager to manage access control rules (ACRs) and access control policies (ACPs). The ACRs and ACPs are configured by an administrator via a Web interface of the management server. The ACP manager is to transmit over the Internet the ACPs and the ACRs to network access devices (NADs) to allow the NADs to apply the ACPs to their respective network client devices (NCDs) based on the ACRs, where the NADs are managed by the management server over the Internet. Each of the NADs operates as one of a router, a network switch, and an access point. The ACP manager is to periodically update the ACRs and ACPs stored in the NADs, including receiving an update from one NAD and broadcasting the update to a remainder of the NADs.
Anti-phishing domain advisor and method thereof
A method of anti-phishing and domain name protection. The method comprises capturing a system call sent to an operating system of a client by an application requesting an access to an Internet resource; extracting a URL included in the captured system call; capturing a response to the system call sent from operating system to the application; determining if the system call's response includes any one of a domain name system (DNS) error code and fake internet protocol (IP) address; checking the extracted URL against an anti-phishing blacklist to determine if the Internet resource is a malicious website; performing a DNS error correction action if any one of the DNS error code and the fake IP address was detected; and performing an anti-phishing protection action if the internet resource is determined to be a malicious website.
Systems and methods to support sharing and exchanging in a network
Embodiments of the invention provide for providing support for sharing and exchanging in a network. The system includes a memory coupled to a processor. The memory includes a database comprising information corresponding to first users and the second users. Each of the first users and the second users are facilitated for sharing or exchanging activity, service or product, based on one or more conditions corresponding thereto. Further, the memory includes one or more instructions executable by the processor to match each of the first users to at least one of the second users. Furthermore, the instructions may inform each of the first users about the match with the at least one of the second users when all the conditions are met by the at least one second user based on the information corresponding to each of the second users.
Securing client connections
An input including a second level domain is received. The second level domain is associated with a particular top level domain. A policy associated with the top level domain is obtained. A determination is made as to whether connection information is consistent with the policy. Content is displayed based on the determination.
Automatic content publication and distribution
A method and system relate to receiving, by a network device, information associated with a client device; determining, by the network device, that the client device is authorized to access digital content associated with a content provider; and forwarding, by the network device, authentication data to the content provider. The authentication data includes, for example, information identifying the client device, and an indication that the client device is authorized to access the digital content. The content provider enables the client device to access the digital content based on the authentication data.
System iteratively reducing I/O requests during migration of virtual storage system
Method and system for a non-disruptive migration of a source virtual storage system from a source cluster to a destination cluster is provided. The method includes monitoring a current transfer rate for migrating information from the source cluster to the destination cluster during a migration operation; iteratively reducing a rate at which I/O requests are processed until a transfer rate for transferring the information from the source cluster to the destination cluster within the duration is reached; and entering a cutover phase for the migration operation when the virtual storage system presented by the source cluster is taken offline for the duration and after the information is migrated to the destination cluster, the virtual storage system is presented by the destination cluster.
Method for providing early-media service based on session initiation protocol
Disclosed is a method of providing an early media service based on a session initiation protocol (SIP). More particularly, the present disclosure relates to a method of providing an early media service based on SIP, wherein an application server and a media server can provide early media of a multimedia form, such as images, moving images and the like, as well as audios, by using an early session or a regular session.
Information processing system, client device, and control method
An image forming apparatus establishes a first network connection using a network protocol to enable transmitting of a request that is issued by taking the server apparatus for the starting point through a firewall to the image forming apparatus. The client server apparatus transmits an instruction through the first network connection to establish a second network connection corresponding to an application installed on the image forming apparatus after establishment of the first network connection. The image forming apparatus establishes the second network connection in response to the instruction transmitted from the print server.
Managing security objects
A message that a user is requesting an access to a resource is received. The access is associated with a requested access level and is granted if an access path exists between the user and the resource for the requested access level. In response to the message reception, a first identifier of the user, a second identifier of the resource, the requested access level, and a first value that represents that the access to the resource was requested is stored in a record. All access paths usable to determine whether the user is authorized to access the resource are identified. Another security object including a flag to represent its usage in authorizing access to the resources is received. A decision is made with respect to whether the received other security object was used within one of the identified access paths as a function of its flag value.
Global grid protocal, a system and method for establishing and simplifying peer-to-peer networking connections among a plurality of computers and divices by dynamically generating identifiers and performing routing and traversal processes
A system and method of establishing and simplifying peer-to-peer networking connections among a plurality of computers and devices, whereby network connections may be established whether firewalls, network address translators, or any combination thereof, are present or not. The method includes: each peer dynamically generating globally unique identifiers and sending, receiving and adding to lists of known mesh configurations sent to and received from other peers or loaded from a storage device; and asynchronously attempting a specified sequence of methods to establish connectivity to the closest peer, including a sequence of methods of traversing any network address translators or firewalls that may be present.
Data flow in peer-to-peer networks
There is described a client node for use in a network. The client node comprises a transmitter for requesting data from the network. A processor is operatively connected to the transmitter, and has installed thereon an operating system and an application. A receiver for receiving data from the network is operatively connected to the processor. The application is arranged to request content data from the network by opening a transport socket to the operating system. The operating system is arranged to establish contact with a master peer server in the network, receive a list of sources of the content data from the master peer server through such transport socket signalling, and establish contact with at least one source from the list of sources. The application is arranged to receive the content data from the at least one source without being aware that the content is delivered by at least one source from a list of sources. The list of sources may include nodes in a P2P network.
System and method for detecting address resolution protocol (ARP) spoofing
There are provided a system and method for detecting Address Resolution Protocol (ARP) attacks. The ARP spoofing attack detection system includes: a reception module which receives an ARP packet, and which determines whether the received ARP packet is an unsolicited ARP packet; a transmission module which creates, if the ARP packet is an unsolicited ARP packet, an ARP request packet corresponding to the unsolicited ARP packet, and which broadcasts the ARP request packet; and a detection module which determines, if an ARP response packet corresponding to the ARP request packet is received, whether an input port of the ARP response packet is identical to an input port of the unsolicited ARP packet, and which determines that an ARP spoofing attack has occurred if the input port of the ARP response packet is not identical to the input port of the unsolicited ARP packet.
Apparatus and method for providing mobility to IMS sessions in mobile IP networks
An apparatus and method for providing mobility to IMS sessions comprising connecting to an APN through a 3GPP access; determining if a non-3GPP access is available; determining if the APN is specific to an IMS application being used or desired to be used, or if an IP header of an IMS application flow matches a configured pattern; and performing one of: a) triggering an IMS Session Continuity flow through the non-3GPP access for the IMS application based on one of the following: if the APN is specific to the IMS application or if the IP header of the IMS application flow matches the configured pattern; or b) triggering an IP mobility flow through the non-3GPP access for the IMS application or a non-IMS application if the APN is not specific to the IMS application and if the IP header of the IMS application flow does not match the configured pattern.
Server load balancing using minimally disruptive hash tables
Methods and articles of manufacture relating to server load balancing are disclosed. In one aspect, the method includes load balancing a plurality of network packets among a plurality of servers using a minimally disruptive hash table having a plurality of hash table buckets by identifying a plurality of elements, each element corresponding to at least one of the plurality of servers, inserting at least two of the identified plurality of elements into the minimally disruptive hash table so that at least some of the hash table buckets each include one of the plurality of elements, receiving one of the plurality of network packets, determining a hash table index for the received network packet using a hash function, identifying an element stored in a hash table bucket corresponding to the hash table index, and transmitting the received network packet to a server corresponding to the identified element.
System and method for preventing access to data on a compromised remote device
This invention discloses a system and method for selective erasure, encryption and or copying of data on a remote device if the remote device has been compromised or the level of authorization of a roaming user in charge of the remote device has been modified.
Identifying NATed devices for device-specific traffic flow steering
The present disclosure describes methods and apparatus for differentiating subscriber devices of a subscriber hidden by a network address translation device and enables traffic flow steering on a per device basis rather than a per subscriber basis. Identification of subscriber devices is achieved by assigning a reserved set of external ports to each subscriber device. Different service paths can be defined for different subscriber devices to provide a subscriber with a different experience for each subscriber device of the subscriber.
Mobile enterprise smartcard authentication
Utilities that allow for multi-factor authentication into an enterprise network with a smart card using mobiles devices (e.g., smartphones, tablets, etc.), where almost any application (app) or website that accesses enterprise resources can be launched or executed to automatically establish of a VPN connection with the enterprise network free of necessarily having to specially configure the apps or websites to be useable with smart cards, card readers, etc. Virtually any app can be used and take advantage of the multifactor authentication free or substantially free of modification to the app itself as the disclosed utilities may take advantage of the native VPN clients and capabilities provided with the mobile device operating system (OS) (e.g., Android®, iOS). As a result, a much more flexible solution may be provided that allows the use of commercially available apps (e.g., from an “App Store”) as well as, for instance, enterprise developed apps.
System and method of accessing keys for secure messaging
Methods and systems for handling on an electronic device a secure message to be sent to a recipient. Data is accessed about a security key associated with the recipient. The received data is used to perform a validity check related to sending a secure message to the recipient. The validity check may uncover an issue that exists with sending a secure message to the recipient. A reason is determined for the validity check issue and is provided to the mobile device's user.
Methods, systems, and products for authentication of users
Methods, systems, and products authenticate users for access to devices, applications, and services. Skills of a user are learned over time, such that an electronic model of random subject matter may be generated. The user is prompted to interpret the random subject matter, such as with a drawing, physical arrangement, or performance. The user's interpretation is then compared to the electronic model of the random subject matter. If the user is truly who they purport to be, their interpretation will match the electronic model, thus authenticating the user. If interpretation fails to match the electronic model, authentication may be denied.
Communication session termination rankings and protocols
A method of handling a plurality of session requests at an access manager may include assigning a rank to each of a plurality of agents. Each of the plurality of agents may forward requests for protected resources to the access manager for authentication and/or authorization, and the access manager may establish a plurality of sessions. The method may also include establishing a first session that is associated with a first agent in the plurality of agents that is assigned a first rank, a first user device, and/or a user credential. The method may additionally include receiving a request to establish a second session that is associated with a second agent in the plurality of agents that is assigned a second rank, a second user device, and/or the user credential. The method may further include determining whether the second session should be established.
System and method for implementing privacy classes within an authentication framework
A system, apparatus, method, and machine readable medium are described for implementing privacy classes within an authentication framework. For example, one embodiment of a method comprises: transmitting a query for client information from a server to a client, the client information including information related to authentication devices coupled to the client; analyzing the query to determine an appropriate privacy class to be used for providing client information to the server; providing a subset of client information selected based on the determined privacy class, the subset of client information including the information related to the authentication devices coupled to the client; and using the subset of client information within an authentication framework to provide user authentication services over a network.
Protocol for program during startup sequence
A system and a method to determine if a client (e.g., an accessory (or peripheral)) is appropriately licensed for interoperation with a host (e.g., host computer). The client communicatively couples the host and receives a contract from the host. The client computes a checksum of the contract and compares the checksum of the contract with a previously stored version of the contract or a checksum of the contract to determine a match. If there is no match, the host communicatively decouples the client in response to the determination being a no match. If there is a match, the client transmits a contract response to the host and awaits host authorization. Once authorized the client transmits enumeration data to the host.
Communication node, key synchronization method, and key synchronization system
In general, according to one embodiment, a communication node includes a key synchronization controller and an application communicator. The key synchronization controller controls synchronization of an application key on the basis of a node-based signaling process and a session-based signaling process, where the former process is for starting or ending exchanging of an application key between a correspondent node and the communication node and the latter process is for synchronizing a rule for assignment of the application key to a session with the correspondent node, the session shared with the correspondent node. The application communicator provides the application key in accordance with the rule, the key for use by an application having the session.
Communication device, program, and communication method for accurately transmitting a message in a device
A communication device includes: a communication unit executing short-range radio communication with another device; a control unit controlling the short-range radio communication executed by the communication unit; a first fragmenting unit fragmenting a message transmitted from the communication unit to the control unit so as to have a predetermined size; a first message fragment transmission unit sequentially transmitting a plurality of message fragments obtained by fragmenting the message by the first fragmenting unit to the control unit; and a first termination message transmission unit transmitting a termination message, which is a message used to terminate the message fragments being transmitted by the first message fragment transmission unit, before another message when the another message is transmitted during the transmission of the plurality of message fragments from the communication unit to the control unit.
Image forming apparatus, method for controlling the same, and storage medium
An image forming apparatus to communicate with a service provision system via a firewall may include an identification unit, a determination unit, and a communication unit. The identification unit identifies, out of services provided by the service provision system, a service which provides a substitute function corresponding to a function of the image forming apparatus limited by a failure. The determination unit determines, out of a plurality of communication methods to be used for communication with the service provision system via the firewall, a communication method to be used to perform data communication with the service identified by the identification unit. The communication unit performs data communication with the service identified by the identification unit by using the communication method determined by the determination unit.
Notifications about users in a social network
Various aspects of the subject technology relate to systems, methods, and machine-readable media for providing a user with notifications about events in a social network. A system may be configured to determine that a number of events for a user have occurred on a social network, wherein each event for the user is associated with an entity, calculate a score for each event based on a profile for the user and a profile for the entity associated with the event, and generate a notification for the user, wherein the notification comprises a plurality of information elements, wherein each information element is associated with one of the events in the number of events, and wherein the plurality of information elements in the notification are prioritized based on the score for each of the events.
System and method for providing plurality of prioritized email domain names
The system and method are for provisioning an electronic mail (email) account for allowing access to an electronic mailbox to retrieve email. A mobile office platform includes a configuration module and a communications module which are operative for accessing an electronic mailbox. The communications module is to receive email address parameters of the user and transmit a domain name system (DNS) query to the Internet for returning mail exchange (MX) records, including email domain names, corresponding to the email address parameters of the user. The configuration module is to process returned MX records to determine candidate configuration parameters for accessing the email account of the user to retrieve user email. The configuration module is to determine candidate configuration parameters based upon expanding a plurality of prioritized email domain names of the returned MX records.
Passive personalization of buddy lists
Personalizing communications for a first communication platform includes accessing status information for communication sessions by a communication identity that leverage a first communication platform other than an instant messaging platform. A participant list associated with the communication identity and the first communication platform is passively configured to persistently reflect a list of participant identities from communication sessions in which the communication identity recently participated using the communication platform.
Method and apparatus for reducing pool starvation in a shared memory switch
A switch includes a reserved pool of buffers in a shared memory. The reserved pool of buffers is reserved for exclusive use by an egress port. The switch includes pool select logic which selects a free buffer from the reserved pool for storing data received from an ingress port to be forwarded to the egress port. The shared memory also includes a shared pool of buffers. The shared pool of buffers is shared by a plurality of egress ports. The pool select logic selects a free buffer in the shared pool upon detecting no free buffer in the reserved pool. The shared memory may also include a multicast pool of buffers. The multicast pool of buffers is shared by a plurality of egress ports. The pool select logic selects a free buffer in the multicast pool upon detecting an IP Multicast data packet received from an ingress port.
Internal cut-through for distributed switches
Processing techniques in a network switch help reduce latency in the delivery of data packets to a recipient. The processing techniques include internal cut-through. The internal cut-through may bypass input port buffers by directly forwarding packet data that has been received to an output port. At the output port, the packet data is buffered for processing and communication out of the switch.
Use of information channels to provide communications in a virtual environment
The invention generally relates to virtual environments, and more particularly to systems and methods for communicating in virtual environments. A method of providing communication in a virtual universe (VU) includes instantiating and assigning an information channel to a first client of the VU, associating at least one additional client of the VU to the information channel, and conveying data placed on the information channel to the first client and the at least one additional client.
Crowd based content delivery
Crowd based content delivery is disclosed. In some embodiments, managing content delivery includes receiving a specification from a resource provider of an availability of a content delivery service at the resource provider, selecting the resource provider to service requests for a content item, facilitating caching of the content item at the resource provider, and redirecting a request for the content item to the resource provider for servicing.
Controlling a network interface using virtual switch proxying
Methods and systems for permitting a controller within a virtualization environment to control access to devices virtualized within hardware are described herein. For example, a NIC may be able to request rules that define how network traffic is managed at the NIC's virtual switch. In some arrangements, the NIC may transmit a query for the matching rule to a proxy, which may determine whether it has a rule matching the request. If the proxy does not have a matching rule, the proxy may query a controller for the matching rule, which may transmit the rule to the proxy. The proxy may update its store of rules and transmit the matching rule to the NIC. Upon receipt of the matching rule, the NIC may update the rules stored in its virtual switch and may process the packet in accordance with the matching rule.
Method and apparatus for transporting Ethernet services
Frames of customer traffic may be encapsulated by adding Mac-in-Mac (MiM) encapsulation fields for transportation of the frames over a portion of provider network. The MiM encapsulated traffic may be further encapsulated using VPLS by adding VPLS encapsulation fields for transportation of the frames over another portion of the provider network. The MiM encapsulations use provider network_MAC addresses which enables VPLS MAC learning to occur using provider network MAC address space. MiM tunnels are mapped to VPLS service instances which are assigned pseudowire tags for transportation over the VPLS portion of provider network. The MiM header is retained when the MiM encapsulated frames are transported over the VPLS portion of the provider network. As VPLS frames exit the core network, the VPLS encapsulation fields are removed to extract the original MiM encapsulated frames for further transportation over the MiM portion of the provider network.
Systems and methods providing reverse path forwarding compliance for a multihoming virtual routing bridge
An information handling system is provided. The information handling system includes a plurality of routing bridges coupled to at least one node. The node may be multihomed and logically coupled to the rest of the information handling system through a virtual routing bridge. Methods and systems are provided to allow multicast packets originating behind the virtual routing bridge to be properly handled to comply with reverse path forwarding. This may be accomplished by creating and selectively using a plurality of routing trees that include the paths between the virtual routing bridge and neighboring physical routing bridges.
Packet routing for embedded applications sharing a single network interface over multiple virtual networks
Techniques are provided for packet routing in a distributed network switch. The distributed network switch includes multiple switch modules operatively connected to one another, and each switch module includes multiple bridge elements and a management controller. In one embodiment, a shared interface routing (SIR) framework is provided that includes an analysis and bifurcation layer and at least one packet interface. A packet is received over a first logical network and via a physical port, the packet being destined for at least a first application executing on the management controller. The analysis and bifurcation layer analyzes the packet and sends the packet to the packet interface, which then routes the packet to the first application.
Method and apparatus for improving packet processing performance using multiple contexts
A network processing device having multiple processing engines capable of providing multi-context parallel processing is disclosed. The device includes a receiver and a packet processor, wherein the receiver is capable of receiving packets at a predefined packet flow rate. The packet processor, in one embodiment, includes multiple processing engines, wherein each processing engine is further configured to include multiple context processing components. The context processing components are used to provide multi-context parallel processing to increase throughput.
Data transmission in cloud-based system
Technologies are generally described for a data transmission scheme for a cloud-based system. In some examples, a data transmission system may include a communication speed determination unit configured to determine communication speed between a server and multiple client devices connected to the server; a client classification unit configured to classify each of the multiple client devices based at least in part on the communication speed determined by the communication speed determination unit; and a data transmission unit configured to transmit a predetermined portion of data to one or more of the client devices connected to the server.
System and method for providing dynamic QoS to maximize bandwidth utilization
A network device is configured to implement a QoS function to optimize bandwidth utilization includes a memory configured to store a high priority throughput value and a low priority bandwidth value, a network device input to communicate a data stream including a plurality of data packets to and from at least one computer system on the internal network, and a network device output to communicate the data stream including the plurality of data packets to and from at least one computer system on the external network. The network device further includes a computer processor configured to execute steps stored in non-volatile memory, the steps including identifying high priority data packets in the data stream to detect the high priority throughput value, setting the low priority bandwidth value, and periodically adjusting the low priority bandwidth value. This QoS function can work without the knowledge of actual bandwidth for any link in the networks.
System and method for multipoint label distribution protocol node protection using a targeted session in a network environment
A method is provided in one example and includes receiving first address information from a protected node over a first label switched path having a first label. The first address information is associated with a first network element. A second label switched path has been previously established with the first network element. The method further includes establishing a targeted session with the first network element, assigning a second label to the second label switched path, and sending the second label to the first network element over the targeted session.
Method for supporting congestion management in a congestion exposure-enabled network
A method for supporting congestion management in a congestion exposure-enabled network, wherein sending hosts and receiving hosts communicate with each other by sending flows of packets over network paths via intermediate routers, which, upon detecting congestion, mark packets of the flows as congestion packets by including congestion information, wherein congestion is indicated to the sending hosts via a congestion feedback mechanism, and wherein the sending hosts, upon receiving congestion indications, declare a subset of the packets they send as congestion response packets by including congestion information, depending on whether the amount of congestion response packets is balanced with the indicated congestion level or not is characterized in that aggregated congestion is determined on the basis of congestion information included in packets that are sent over the network paths between the sending hosts and the receiving hosts. Furthermore, a corresponding congestion exposure-enabled network system and a corresponding intermediate router are disclosed.
System and method for distributed netflow exporter with a single IP endpoint in a network environment
An example method for a distributed NetFlow exporter with a single IP endpoint in a network environment is provided and includes configuring a network protocol stack of an exporter with switched virtual interface (SVI) state information of an SVI associated with a switch in a network, retrieving flow data from a NetFlow cache, and communicating the flow data to a collector according to the configured network protocol stack. Although the communication bypasses the SVI, the collector perceives the flow records as being communicated by the SVI. The SVI state information includes a public Internet Protocol (IP) address and a Media Access Control (MAC) address of the SVI, where the exporter executes on an adaptor of a server in the network. The method also includes configuring a destination IP address and a destination MAC address on the exporter according to a NetFlow policy.
Method to transport bidir PIM over a multiprotocol label switched network
A method, system and an apparatus to transport bidir PIM over a multiprotocol label switched network are provided. The method may comprise receiving a multicast packet at a network element, the multicast packet including an upstream label. The method may further comprise identifying, from the upstream label, a Multicast Distribution Tree (MDT) rooted at a rendezvous point. The packet may be forwarded along the MDT towards the RP based on the upstream label. The MDT may be identified from a downstream label and the packet may be forwarded along the MDT away from the RP based on the downstream label.
Method and apparatus for supporting multicast broadcast service (MBS) in WIMAX
Disclosed is a mobile internet system, and more particularly, to a method and apparatus for supporting a multicast broadcast service (MBS) over WIMAX. The MBS supporting method of the present invention comprises assigning a first GRE key to a first MBS service flow for a first MS, and delivering MBS contents having the first MBS service flow through the use of first GRE key; and if a second MBS service flow for a second MS is the same as the first MBS service flow, delivering MBS contents having the second MBS service flow through the use of first GRE key pre-assigned to the first MBS service flow.
Method and edging device for creating forwarding table, forwarding message and obtaining address
The present invention provides a method and a network provider edge (NPE) for creating the forwarding table, forwarding the message and obtaining the address; the method for creating the forwarding table includes: the network provider edge (NPE) receives the label distribution protocol (LDP) message which carries the backbone media access control (MAC) address of the destination user facing-provider edge (UPE) and the load sharing negotiation parameter between the destination UPE and the NPE; the NPE obtains multiple extend MAC addresses of the destination UPE according to the LDP message; the forwarding table is created for each extend MAC address respectively, and the forwarding table includes the extend MAC address and the corresponding multiple output ports.
Assisted traffic engineering for minimalistic connected object networks
In one embodiment, a distributed intelligence agent (DIA), hosted on a border router that provides access for a computer network to a global computer network, determines a routing topology of the computer network, and also computes a traffic matrix for the computer network based on source and destination addresses of traffic traversing the DIA, the traffic matrix providing an estimate for an amount of traffic on each link of the routing topology. Accordingly, the DIA may determine one or more portions of the routing topology for which traffic engineering (TE) should be applied based on a threshold for traffic loads on the links, and may notify one or more nodes in the computer network to change its respective current next-hop in the routing topology to an alternate next-hop based on a TE solution computed by the DIA.
Mobile device or computer theft recovery system and method
A mobile device, e.g. portable computer, location tracking and data backup-and-wipe system and method enable a lost or stolen device to be recovered by reporting to its rightful owner and optionally to others its approximate location via triangulation and the use of location service providers. Social network members may be made aware automatically of the location of a reported lost or stolen device and can assist the rightful owner in recovering it based upon their identification of the user of the device, whether by the location coordinates or by viewing a photographic image taken by the computer. Alternatively, in governmental and/or institutional settings having privacy concerns, no photographic images are sent to a public website. Instead, they are sent to a proprietary employer server and maintained behind an institutional firewall.
Method and apparatus for providing mobile and other intermittent connectivity in a computing environment
Method and device for managing resource consumption in a computer network providing communication between plural devices, in which resources are provided to the plural devices. The method includes enforcing at least one of globally, per-device, per-device group, per-user group, and per-user policy management for managing consumption of the resources by the devices, distributing a task of managing of the resource consumption between the devices, and proxying in at least one proxy server communications between peers and the devices even when a device becomes temporarily disconnected from the network environment.
Network group management system
As a result of performing a comparing and determining process of determining the relationship among the bandwidth of distributed data in real time in a local group, the incoming data bandwidth to the local group, and the outgoing data bandwidth from the local group, the increase/decrease management and the connection management of each terminal device in the local group are performed. The comparing and determining process compares, for example, a sum of the total sum of the terminal possessed transfer bandwidths and the incoming data bandwidth from other groups to the local group with a sum of the value obtained by multiplying the bandwidth of distributed data in the local group by the number of terminal devices in the local group, the outgoing data bandwidth from the local group, and a predetermined determination margin.
Discovering, validating, and configuring hardware-inventory components
Methods, systems, and computer-readable media for automatically validating and configuring an inventory of hardware to interact seamlessly with a cloud-computing fabric of a data center are provided. Initially, devices internal to the hardware inventory are located by sending and receiving messages via out-of-band communication channels and network communication channels, respectively. Locating the internal devices involves establishing communication from a user device to the hardware inventory and selecting at least one of the internal devices for conducting a discovery process thereon. The discovery process involves receiving a first network identifier via the out-of-band communication channel and receiving a second network identifier via the network communication channel. When the first and second network identifiers match, the interconnection of the selected device is validated. Otherwise, one or more remedial measures are initiated with respect to the selected device. Validation involves conducting a server boot within the MOS and executing validation and configuration tools.
Detection of cabling error in communication network
In one embodiment, a method at a network device includes receiving a link layer advertisement, comparing information in the link layer advertisement with connectivity information stored at the network device, and based on the comparison, determining if there is a cabling error between the network device and a link peer transmitting the link layer advertisement. An apparatus and logic are also disclosed herein.
Method and device for processing data cell
A method and device for processing data cells are disclosed. The method includes: configuring a unicast routing table which includes a corresponding relation between unicast destination addresses and port trunking (Trunks), and a multicast routing table which includes a corresponding relation between multicast group addresses and Trunks; receiving data cells; determining a corresponding Trunk according to types of the data cells, if the data cell is a unicast cell, extracting a destination address of the unicast cell, querying the unicast routing table, and obtaining a Trunk corresponding to the unicast cell; and if the data cell is a multicast cell, extracting a multicast group address of the multicast cell, querying the multicast routing table, and obtaining one or more Trunks corresponding to the multicast cell; and selecting an output link from the determined Trunks according to a preset load balancing policy, and sending data cells through the selected output link.
Methods, apparatus and articles of manufacture to manage routing in networks
Example methods, apparatus and articles to manage routing in networks are disclosed. A disclosed example method includes identifying a first network element associated with a problematic network element; identifying a first maximum transmission unit of the first network element and a second maximum transmission unit of the problematic network element; determining whether the first and second maximum transmission units are different; and when the first and second maximum transmission units are different, identifying a value of a greater one of the first and second maximum transmission units and configuring the first network element and the problematic network element to each have the identified value.
Providing services to virtual overlay network traffic
According to one embodiment, a method for providing services to network traffic on a virtual overlay network includes receiving network traffic comprising a plurality of packets, determining whether the plurality of packets comprise an overlay header, terminating a tunnel and de-encapsulating inner packets of packets comprising an overlay header, performing services on the plurality of packets or the de-encapsulated inner packets, and originating a tunnel and encapsulating the serviced inner packets or the serviced packets with an overlay header to be switched to a destination address in a virtual network and sending the encapsulated packets, or sending the serviced packets without encapsulating the packets with an overlay header to be switched to a destination address in a non-virtual network.
Information processing apparatus, client management system, and client management method
According to one embodiment, an apparatus includes a client management module configured to manage first information which correlates with client terminal information, group information, and type information, the client terminal information indicating a client terminal, the group information indicating a group to which the client terminal belongs, and the type information indicating whether the client terminal is a client virtualization terminal that executes a virtual machine or a thin client terminal, a user management module configured to manage second information which correlates with a user account and the group information, and a group management module configured to manage third information, which correlates with the group information and a virtual image file.
Appliance in a mobile data network that spans multiple enclosures
Mobile network services are performed in an appliance in a mobile data network in a way that is transparent to most of the existing equipment in the mobile data network. The mobile data network includes a radio access network and a core network. The appliance in the radio access network breaks out data coming from a basestation, and performs one or more mobile network services at the edge of the mobile data network based on the broken out data. The appliance has defined interfaces and defined commands on each interface that allow performing all needed functions on the appliance without revealing details regarding the hardware and software used to implement the appliance. This appliance architecture allows performing new mobile network services at the edge of a mobile data network within the infrastructure of an existing mobile data network.
Method and receiver in a wireless communication system
Receiver and method in a receiver, for estimating a normalised frequency offset between a transmitter and the receiver in a wireless communication system, based on Orthogonal Frequency Division Multiplexing, OFDM. The method comprises receiving a first pilot signal (yr1) and a second pilot signal (yr2) from the transmitter; computing a Karhunen-Loeve approximation λK(φ), up to any finite order K of a log-likelihood function λ(φ), based on the received pilot signals (yr1, yr2); and estimating the frequency offset by calculating a maximum value of the computed Karhunen-Loeve approximation λK(φ).
Non-data-aided joint time and frequency offset estimation method for OFDM systems using channel order based regression
A system and method involve receiving a plurality of samples of an orthogonal frequency division multiplex (OFDM) signal containing a complete OFDM symbol. The OFDM symbol includes data samples and a cyclic prefix comprising inter-symbol interference (ISI) samples and ISI-free samples. The ISI samples are used to limit the search region of possible symbol time offset (STO) estimates made using the ISI-free samples. This may involve determining a first cost function using the ISI-free samples and using data samples that correspond to the ISI-free samples, determining a second cost function using the ISI samples and using data samples that correspond to the ISI samples, using regression coefficients to determine a set of STOs yielding the smallest second cost function, and determining a joint estimate of STO and carrier frequency offset (CFO) by finding STO and CFO values within the set that result in minimization of the first cost function.
Apparatus and method for transceiving data
A data transmitting apparatus generates a plurality of modulation data symbols by symbol-mapping a plurality of input data signals, converts the plurality of modulation data symbols to a real signal of a time domain from a frequency domain, performs angle modulation of the signal, and controls and transmits the size of a sine signal of the angle-modulated real signal with a gain varying according to a control signal.
Active signal processing personal health signal receivers
The invention provides a receiver associated with a body, e.g., located inside or within close proximity to a body, configured to receive and decode a signal from an in vivo transmitter which located inside the body. Signal receivers of the invention provide for accurate signal decoding of a low-level signal, even in the presence of significant noise, using a small-scale chip, e.g., where the chip consumes very low power. Also provided are systems that include the receivers, as well as methods of using the same.
Polar receiver with adjustable delay and signal processing metho
Adjusting a relative phase within a polar receiver to reduce a DC error, the polar receiver having (i) a harmonic ILO having an RF modulated signal input and a phase-compressed divided-frequency output, (ii) a fundamental ILO connected to the phase-compressed divided-frequency output and having a phase-locking output, (iii) a delay element, and (iv) a phase discriminator connected to the delay element output and to the phase-locking output, and having a phase-detection output representative of a phase difference between signals on the delay output and the phase-locking output.
Retransmission-based stream repair and stream join
The Real-time Transport Protocol (RTP) and its related standards define a retransmission packet format and a way to give feedback via Negative ACKnowledge (NACK) packets for data that has been lost. In one embodiment, a unicast RTP repair session is associated with a main Source Specific Multicast (SSM) multicast session. Real-time Transport Control Protocol (RTCP) NACK packets are then used for feedback to a SSM feedback target address. This dynamically instantiates unicast RTP repair for multicast sessions. The repair scheme can be used for repairing multicast channels or joining new multicast channels. In another embodiment, a media transmission device shares an IP address with one or more other media transmission devices. The shared IP address can also be used to route multiple identical multicast media streams to different media stream receivers.
Numerically controlled oscillator with fractional frequency control word inputs
A numerically controlled oscillator (NCO) module includes a first accumulator circuit, a second accumulator circuit, and a phase-to-amplitude converter module. The first accumulator circuit receives a clock signal and at least first portions of each of multiple frequency control words and accumulates the first portions to generate a phase value. Each of the frequency control words identifies a fractional value and includes a respective one of the first portions and a respective second portion. The second accumulator circuit accumulates the second portions and generates a trigger signal based on a result of the accumulated second portions. The first accumulator circuit is configured to adjust the phase value based on the trigger signal. The phase-to-amplitude converter module generates a digital signal based on the clock signal and the phase value. An output transmits an output signal from the NCO module based on the digital signal.
Sampler circuit for a decision feedback equalizer and method of use thereof
A sampler circuit for a decision feedback equalizer and a method of use thereof. One embodiment of the sampler circuit includes: (1) a first sampler portion including a series-coupled first master regeneration latch and first slave latch, (2) a second sampler portion including a series-coupled second master regeneration latch and second slave latch, and (3) a first feedback circuit coupled to a first node between the first master regeneration latch and the first slave latch and operable to provide a feedback signal to the second master regeneration latch to cause a bias charge to be built up therefor.
Methods and systems for error detection and correction using vector signal prediction
Decision Feedback Equalization techniques are difficult to apply in high speed communications systems, as the decoding process for a received symbol may not be completed in time to allow adaptive detection of the following symbol. Advantage may be taken of certain novel aspects of vector signaling codes to provide decision feedback to an adaptive data receiver concurrent with symbol decoding, rather than being delayed to symbol decode completion. Methods and systems are described that error correct an initial non-adaptive decoding, based on differences between the actual received signals and simulated received signals derived from the initial decoding and historical received data. Additional methods and systems are described using bounding functions to estimate an error rate with reduced computation.
System and method for AC coupling
An AC coupling circuit is provided that has a level shifter circuit having a p input voltage and an n input voltage and producing a p output voltage and a p output voltage. There is a common mode voltage adjustment feedback circuit configured to cause a common mode voltage output to tend towards a specified reference voltage, the common mode voltage output being an average of the p output and n output voltages of the level shifter circuit. In combination, the level shifter circuit and the feedback circuit allow the interconnection of a first circuit that operates at a first, unspecified, common mode voltage to be connected to a second circuit having a required common mode voltage. The level shifter may be formed of adjustable components such that the frequency response of the level shifter circuit can be adjusted to compensate for a frequency response of an interconnect between the first circuit and the second circuit.
Apparatus and method for detecting broadcasting signal
Disclosed are an apparatus and a method for detecting a broadcasting signal. The signal detecting apparatus according to the exemplary embodiment of the present invention includes: a reference signal generator outputting a reference signal acquired by performing a correlation calculation between a current sample and a previous sample of a received signal which is an FM signal or a digital radio mondiale plus (DRM+) signal and then normalizing a result of the correlation calculation; and a discriminator detecting a maximum value of the reference signal and judging that the received signal is the FM signal when the maximum value of the reference signal is more than a predetermined threshold.
Method and apparatus for bandwidth allocation for cognitive radio networks
Described herein are methods, metrics and apparatus for bandwidth allocation for cognitive radio. Information that needs to be passed between different components of a dynamic spectrum management (DSM) system for dynamic bandwidth allocation along with the corresponding interfaces is identified. Methods and associated metrics for measuring network performance, evaluating channel sensing results and handling various bandwidth allocation scenarios are presented. Also provided is an admission control mechanism for quality of service support. Alternate channel monitoring may be performed in the background so that when a new channel is needed, an alternate channel may be immediately allocated and service disruption to the DSM system is reduced. A channel may be dynamically assigned as the primary channel in multiple channel scenarios to support tasks such as transmission of acknowledgment frames. Hybrid mode devices that may access a television white space (TVWS) database and perform spectrum sensing are also described.
Network apparatus and method for communication between different components
The present invention discloses a method for communication among different components, including integrating a Network Forwarding Component (NFC) for forwarding messages and at least one Independent Application Component (IAC) for performing other service processing into one network device; setting at least one cooperation mode in the NFC and each of the at least one IAC; and communicating with each other, by the NFC and the at least one IAC, according to the at least one cooperation mode. The cooperation mode may be any or any combination of a host mode, a mirror mode, a redirection mode and a pass-through mode. According to the present invention, the NFC and the IAC may communicate according to the cooperation mode so as to ensure that the NFC and the IAC can cooperate to provide various service capabilities including message forwarding and other additional service capabilities.
Predictive analysis of network analytics
Methods and apparatus for predicting network activity are disclosed. In response to a requested value of an independent variable describing a suspected determinant of network activity for a network content provider, a set of predicted values of a dependent variable is displayed. The set of predicted values of the dependent variable is predicted based on a relationship between the independent variable and the dependent variable. The dependent variable reflects an aspect of the network activity for the network content provider. The relationship is derived from a plurality of metric values, and the plurality of metric values includes metric values describing the network activity for the network content provider. A plurality of independent variables is set to the requested value of the independent variable. A plurality of values of the dependent variable is displayed based on a plurality of respective relationships between the plurality of independent variables and the dependent variable.
User initiated rule-based restrictions on messaging applications
A method, system and computer program product are disclosed for user initiated rule based restrictions on sending messages from a sender to a receiver in a communications network. The receiver establishes a set of rules for the sender that allows the sender a limited number of defined messages events with the receiver. The defined message events may be messages or message sessions. When the sender attempts to send a message to the receiver, it is determined whether a message session currently exists between the sender and the receiver. If a current session exists, the rules set by the receiver are used to determine if the message is allowed to be sent to the receiver. If a session does not currently exist, the rules are used to determine whether a new session is allowed. If a new message session is allowed, a new session is established, and the message is sent to the receiver during the new session.
Apparatus for providing connection between networks
When an internal terminal (TM1 to TMn) replaced with another terminal due to the breakdown or the model upgrading and the DHCP function allocates a new private address for the MAC address of the terminal after replacement, the newly allocated private address is managed in association with physical ports (PP1 to PPn) in an expansion NAPT table. Then, in this state, when an IP packet is delivered from an external terminal (TM0) on the side of a WAN(2), the transmission destination address of this IP packet is converted to the private address of the internal terminal after conversion in accordance with the expansion NAPT table using the physical ports as a key.
Network virtualization over infiniband
Mechanisms are provided to allow servers connected over an InfiniBand fabric to communicate using multiple private virtual interconnects (PVIs). In particular embodiments, the PVIs appear as virtual Ethernet networks to users on individual servers and virtual machines running on the individual servers. Each PVI is represented on the server by a virtual network interface card (VNIC) and each PVI is mapped to its own InfiniBand multicast group. Data can be transmitted on PVIs as Ethernet packets fully encapsulated, including the layer 2 header, within InfiniBand messages. Broadcast and multicast frames are propagated using InfiniBand.
Aircraft communication bus fault isolator apparatus
A structure and a first panel are operably disposed with respect to the structure. A first plurality of nodes is disposed within the first panel, including a first plurality of power distribution network nodes in a first power distribution network, and wherein the first plurality of nodes further comprises a first group of nodes. A second panel is operably disposed with respect to the structure. A second plurality of nodes is disposed within the second panel, including a second plurality of power distribution network nodes in a second power distribution network isolated from the first power distribution network. The second plurality of nodes further comprises a second group of nodes. A bus guardian, separate from the two panels, electrically connects the first panel and the second panel. The bus guardian is configured to network the first group of nodes and the second group of nodes in a network.
Home appliance and method of operating the same
A home appliance and a method of operating the same are provided. The home appliance has a communication device that can be easily detached, can selectively set a communication method according to a peripheral network environment, enables an easy connection to a smart server by changing a position of the communication device and can thus transmit and receive data by stably communicating with the smart server regardless of an obstacle and a position of the home appliance.
System and method for communicating health parameters of an occupant in an automobile and a dynamic operation of the automobile and home automation
System and method for communicating health parameters of an occupant in an automobile and a dynamic operation of the automobile and home automation are disclosed. The system includes a functional device configured to (a) reading and relaying health parameters from authorized occupant in the automobile (b) receive and relay commands from the authorized occupant for an automated operation of the automobile (b) reading and relaying signals from a home automation server connected to at least one sensor positioned at a predetermined location and (c) reading and relaying a plurality of signals from a home automation server, whereby the home automation server connected to at least one sensor positioned at a predetermined location. The system further includes an automobile management module positioned in the automobile to operate the automobile and to customize the functionalities associated to the automobile and a home automation in communication with the home automation sensors.
Method and apparatus for managing resources of a universal plug and play device based on a connection status of a control point
Provided are a method and apparatus for managing resources of a Universal Plug and Play (UPnP) device based on a connection status of a control point. The method of managing resources of a controlled device includes: monitoring an invocation of an action representing a connection of a control point for a predetermined time; determining whether the control point is connected to the controlled device or not by considering whether the monitored action is invoked or not; and increasing available resources by selectively deactivating an application which is controlled by the control point according to the determination result. Accordingly, the resources of the UPnP device can be effectively managed.
Information communication method of obtaining information from a subject by demodulating data specified by a pattern of a bright line included in an obtained image
An information communication method includes: setting an exposure time of an image sensor to less than or equal to 1/2000 second so that, in an image obtained by capturing a subject by the image sensor, a stripe bright line parallel to a plurality of exposure lines included in the image sensor appears according to a change in luminance of the subject; obtaining the image including the stripe bright line parallel to the plurality of exposure lines by, using the set exposure time, starting exposure sequentially for the plurality of exposure lines each at a different time; and obtaining information by demodulating data according to, in a pattern of the bright line included in the obtained image, a brightness change in a direction perpendicular to the plurality of exposure lines.
Information communication method of obtaining information from a subject by demodulating data specified by a pattern of a bright line included in an obtained image
An information communication method includes: setting an exposure time of an image sensor to less than or equal to 1/2000 second so that, in an image obtained by capturing a subject by the image sensor, a stripe bright line parallel to a plurality of exposure lines included in the image sensor appears according to a change in luminance of the subject; obtaining the image including the stripe bright line parallel to the plurality of exposure lines by, using the set exposure time, starting exposure sequentially for the plurality of exposure lines each at a different time; and obtaining information by demodulating data according to, in a pattern of the bright line included in the obtained image, a brightness change in a direction perpendicular to the plurality of exposure lines.
Retransmitting lost packets for multicast data distribution
A computing device configured for retransmitting lost packets for multicast is described. It includes a processor and instructions in memory. It identifies data, which it begins sending via multicast. No data is resent until all the data has been sent. The computing device requests missed packet lists and waits. It adds missed packets to a map if there are replies. It determines whether there are any missed packets and resends any missed packets. Another computing device for retransmitting lost packets for multicast is described. It includes a processor and instructions in memory. It identifies data for distribution, which it begins sending via multicast. It waits to resend any data until all of the data has been sent. A missed packet indication is requested and received. The computing device updates lists of complete and incomplete target nodes. It determines and sends a peer download instruction.
Method and apparatus for multicast packet reception
Roughly described, incoming data packets are delivered by the NIC directly to at least two user level endpoints. In an aspect, only filters that cannot be ambiguous are created in the NIC. In another aspect, the NIC maintains a filter table supporting direct delivery of incoming unicast and multicast data packets to one user level endpoint. Additional requests to join the same multicast group cause replacement of the NIC filter with one in the kernel. In another aspect, a NIC has limited capacity to maintain multicast group memberships. In response to a new multicast filter request, the kernel establishes it in the NIC only if the NIC still has sufficient capacity; otherwise it is established in the kernel.
Methods and apparatus for creation and transport of multimedia content flows to a distribution network
Methods and apparatus for creation and transport of multimedia content flows to a distribution network. The system includes a method for transporting a content flow to an access network for distribution to devices coupled to the access network. The method includes transmitting a request message to add the content flow to the access network, wherein the request message comprises one or more flow parameters associated with the content flow. The method also includes receiving a response message indicating that the content flow associated with the one or more flow parameters will be added to the access network, and delivering the content flow to the access network.
Method of monitoring the powering of a remote device through a LAN line and relative circuit
A circuit is for monitoring the powering of a remote device through a LAN without generating an extra biasing voltage higher than the DC power supply voltage. DC voltage used for supplying the remote device is applied to the LAN line while an AC voltage is applied to the line for monitoring whether the remote device is connected to the LAN line. The DC voltage is applied to a first or “high” terminal and the AC voltage is applied to the other or “low” terminal of the LAN line through a decoupling capacitor. This arrangement allows the supplying of the remote device with a large DC voltage compatible with a fully integrated AC signal generator, disconnection detector, and PSE controller, and enhances the reliability of the recognition of whether the powered device is connected to, or disconnected from, the LAN line.
Method and system for propagating a client identity
A method and system for securely propagating client identities in a service call from a first system to a target service system are provided. The system includes a memory device for storing data and a service provider (SP) computer system. The SP computer system is programmed to determine identities to transmit to the target system in association with a request, construct a data structure to represent each identity and additional information related to the identity, digitally sign the identity information, pair the identity information and the corresponding digital signature in a header of a request message from the first system to the target service system, receive the request message and extract the identity information and corresponding digital signatures from the header, validate the corresponding digital signatures, and construct using the corresponding identity information a data structure that represents each of the original identities established in the first system.
Multi party messaging
Multi-party messaging is disclosed. A plurality of public keys is requested from a first server, wherein the plurality of public keys is associated with a plurality of recipients. A message containing one or more components is encrypted using a symmetric key. The symmetric key is encrypted, using each of the respective public keys, resulting in a plurality of encrypted symmetric keys. The encrypted message and the encrypted symmetric keys are encapsulated in an encapsulation. The encapsulation is transmitted to a second server.
Using mobile data to establish a shared secret in second-factor authentication
A server computer system receives mobile device activity data from a mobile device. The server computer system verifies that the mobile device activity data matches mobile device activity data that is stored at the mobile device and generates a shared secret at the server computer system using the received mobile device activity data. The shared secret at the server computer system matches a shared secret generated at the mobile device.
Method and apparatus for generating jitter test patterns on a high performance serial bus
The present invention provides a method for generating random jitter test patterns by generating a sequence of maximum-size asynchronous packets according to the P1394b standard and transmitting the sequence to the device under test. The present invention provides a method for generating jitter test patterns by disabling the transmitter data scrambler of the second device; clearing the port_error register of the device under test; and sending a test pattern to said device under test. The present invention provides for a method for generating supply noise test patterns comprising: transmitting a test pattern to the DUT comprising a maximum length asynchronous packet containing alternate 0016 and FF16 bytes.
Tunable hybrid coupler
This disclosure includes embodiments of a tunable hybrid coupler. The tunable hybrid coupler includes a first inductive element having a first inductance, a second inductive element having a second inductance and mutually coupled to the first inductive element, a first variable capacitive element having a first variable capacitance, and a second variable capacitance having a second variable capacitance. The first variable capacitive element is coupled between a first port and a second port. The second variable capacitive element is coupled between a third port and a fourth port. The first inductive element is coupled from the first port to the third port, while the second inductive element is coupled from the second port to the fourth port. Accordingly, the tunable hybrid coupler may form an impedance matching network that is tunable to different radio frequency (RF) communication bands. The tunable hybrid coupler can be used in a tunable RF duplexer.
Forward secure pseudorandom number generation resilient to forward clock attacks
Methods and apparatus are provided for generation of forward secure pseudorandom numbers that are resilient to such forward clock attacks. A forward secure pseudorandom number is generated by obtaining a first state si corresponding to a current leaf node νi in a hierarchical tree, wherein the current leaf νi produces a first pseudorandom number ri−1; updating the first state si to a second state si+t corresponding to a second leaf node νi+t; and computing a second pseudorandom number ri+t−1 corresponding to the second leaf node νi+t, wherein the second pseudorandom number ri+t−1 is based on a forward clock reset index that identifies an instance of the hierarchical tree, wherein the instance of the hierarchical tree is incremented when one or more criteria indicating a forward clock attack are detected. The forward clock reset index can be encoded in a forward secure manner in the hierarchical tree.
Recording device, and content-data playback system
A recording device configured to store content data in an encrypted manner, the recording device comprises a memory unit which stores various data, and a controller which controls the memory unit. The controller possesses a controller key and unique identification information, and is configured to generate a controller-unique key unique for each controller in accordance with the controller key and the identification information. The memory unit stores an MKB generated by encrypting a medium key with a device key set that is a collection of a plurality of device keys, an encrypted device key set generated by encrypting the device key set with the controller-unique key, and a device-key-set index which uniquely identifies the device key set.
Generation and management of crypto key for cloud data
In one example, a method includes creating a password having ‘n’ characters that each constitute a byte, placing the characters of the password in a first buffer, generating a random number corresponding to the password, using the random number to map a character in the first buffer to a respective random character present in a second buffer, copying the random character to a third buffer, and removing the mapped character from the first buffer. The mapping, copying, and removing processes are repeated for each character in the first buffer so that the first buffer empties and an ‘xth’ random string of ‘n’ length is generated in the third buffer, the ‘xth’ random string comprising the random characters to which respective characters from the first buffer were mapped. Finally, the ‘xth’ random string is placed in a fourth buffer and constitutes at least a portion of an encryption key.
Cryptographic processing apparatus and cryptographic processing method, and computer program
There is provided a highly secure cryptographic processing apparatus and method where an analysis difficulty is increased. In a Feistel type common key block encrypting process in which an SPN type F function having a nonlinear conversion section and a linear conversion section is repeatedly executed a plurality of rounds. The linear conversion process of an F function corresponding to each of the plurality of rounds is performed as a linear conversion process which employs an MDS (Maximum Distance Separable) matrix, and a linear conversion process is carried out which employs a different MDS matrix at least at each of consecutive odd number rounds and consecutive even number rounds. This structure makes it possible to increase the minimum number (a robustness index against a differential attack in common key block encryption) of the active S box in the entire encrypting function.
Apparatus for dedicated hardware and software split implementation of rate matching and de-matching
In the method of rate-matching, software is used to calculate at least one rate-matching parameter for data, and dedicated hardware is used to perform at least one of a puncturing and repetition process on data based on the calculated rate-matching parameter. In rate de-matching, software is again used to calculate at least one rate de-matching parameter for received data, and dedicated hardware is used to compensate for puncturing and repetition based on the calculated rate de-matching parameter.
Feedback of control information for multiple carriers
Techniques for sending control information relating to multiple downlink carriers and data on a single uplink carrier are described. A user equipment (UE) may be scheduled to transmit on a designated uplink carrier. The UE can multiplex control information for multiple downlink carriers with data for transmission on the uplink carrier in a same subframe. Multiplexing may be performed according to a type of the control information and/or an ordering, priority, or association of the downlink carriers. The UE can selectively encode the control information separately for each downlink carrier and/or jointly across downlink carriers. The control information may be mapped to a single layer or multiple layers of a data channel. The UE may send the multiplexed control information and data on the data channel in the subframe while maintaining a single-carrier waveform.
Decision feedback solution for channels with low signal to noise ratio
This invention is related to a low-complexity MIMO detector in a wireless communication system with near optimal performance. Initial symbol estimation is performed for a transmitted symbol vector. The soft information of the transmitted symbol vector can be more accurately calculated by deemphasizing the LLRs associated with symbols belonging to weak channels that may suffer from poor initial estimation. By combining aspects of both the linear detection and the ML detection, the complexity of the proposed detector becomes orders of magnitude lower than that of a ML detector, but the performance is very close to that of an ML detector.
Adaptive antenna system signal detection
A system and method for processing signals in a communication system is disclosed herein. The system and method comprises processing steps and processing logic for generating a downlink subframe comprising a preamble and a plurality of data bursts within a predetermined frequency band; embedding first and second sets of downlink subframe parameters in the downlink subframe; transmitting the downlink subframe; receiving the downlink subframe; processing data in the preamble to obtain channel quality indicator (CQI) information; and using the CQI information to select either the first set or set second set of downlink subframe parameters to process the data bursts in the downlink subframe.
Apparatus and method for communicating data over a communication channel
For some applications such as high-speed communication over short-reach links, the complexity and associated high latency provided by existing modulators may be unsuitable. According to an aspect, the present disclosure provides a modulator that can reduce latency for applications such as 40 G/100 G communication over copper cables or SMF. The modulator has a symbol mapper for mapping a bit stream into symbols, and a multi-level encoder including an inner encoder and an outer encoder for encoding only a portion of the bit stream. In some implementations, the multi-level encoder is configured such that an information block size of the inner encoder is small and matches a field size of the outer encoder. Therefore, components that would be used to accommodate larger block sizes can be omitted. The effect is that complexity and latency can be reduced. According to another aspect, the present disclosure provides a demodulator that is complementary to the modulator.
Apparatus and method for mitigating inter-cell interference in multiple antenna system
A method for operating a Base Station (BS) in a wireless communication system is provided. The method comprises of receiving at least one request set for at least one neighboring cell, from at least one Mobile Station (MS), updating the at least one request set based at least in part on a serving band of each MS, and transmitting the updated at least one request set to the at least one neighboring cell, wherein the request set comprises a band and a Precoding Matrix Index (PMI) for making a use restriction or recommendation request to a neighboring cell.
Software defined networking photonic routing systems and methods
A network includes a plurality of interconnected nodes utilizing an all-broadcast architecture for a plurality of wavelengths therebetween; a routing protocol configured to compute a loop-free path through the plurality of interconnected nodes, wherein the loop-free path is computed for at least one wavelength of the plurality of wavelengths using routing constructs adapted to a photonic domain; and at least one blocking element configured to selectively block the at least one wavelength based on the computed loop-free path. A routing method photonic node are also disclosed.
Orthonormal time-frequency shifting and spectral shaping communications method
A wireless combination time, frequency and spectral shaping communications method that transmits data in convolution unit matrices (data frames) of N×N (N2), where generally either all N2 data symbols are received over N spreading time intervals (each composed of N time slices), or none are. To transmit, the N2 sized data frame matrix is multiplied by a first N×N time-frequency shifting matrix, permuted, and then multiplied by a second N×N spectral shaping matrix, thereby mixing each data symbol across the entire resulting N×N matrix (TFSSS data matrix). Columns from this N2 TFSSS data matrix are selected, modulated, and transmitted, on a one element per time slice basis. At the receiver, the replica TFSSS matrix is reconstructed and deconvoluted, revealing the data. The method can accommodate multiple users at once, can adapt to changing channel conditions, and is particularly useful for coping with channel impairments such as Doppler shifts.
Method and apparatus for transmitting reference signal in wireless communication system
The present invention relates to a method and an apparatus for transmitting a reference signal by a base station in a wireless communication system. The base station generates a channel state information (CSI) reference signal (RS) for each of a plurality of layers, performs mapping the plurality of CSI-RSs to a resource element set constituted by a plurality of resource elements(REs) in a subframe and transmits the subframe with the plurality of mapped CSI-RSs. The plurality of resource elements constituting the resource element set are resource elements that are arranged with constant subcarrier spacing in two neighboring orthogonal frequency division multiplexing (OFDM) symbols, and the subframe has an extended cyclic prefix (CP) structure including 12 OFDM symbols.
OFDM frame transmission method and apparatus
A transmission method includes generating a plurality of orthogonal frequency division multiplexing (OFDM) signals, each signal including different data and some of the plurality of OFDM signals including pilot symbols. The pilot symbols are assigned to a predetermined subcarrier in predetermined time. At least one of the plurality of OFDM signals is assigned the pilot symbols to the predetermined subcarrier in the predetermined time, and other OFDM signals are assigned data to the predetermined subcarrier in the predetermined time. The method further includes converting each of the plurality of OFDM signals to a radio signal and transmitting each of the radio signals from a different antenna.
Signaling for downlink coordinated multipoint in a wireless communication system
Embodiments herein describe apparatuses, systems, and methods for signaling to support downlink coordinated multipoint (CoMP) communications with a user equipment (UE) in a wireless communication network. In embodiments, the UE may be configured with a plurality of channel state information (CSI) processes (e.g., via radio resource control (RRC) signaling) to use for providing CSI feedback to an evolved Node B (eNB) to support downlink CoMP communications. The UE may be configured with a plurality of sets of CSI processes. The UE may further receive a downlink control information (DCI) message from the eNB that indicates one of the configured sets of CSI processes on which the UE is to provide CSI feedback to the UE. The UE may generate the CSI feedback for the indicated set of CSI processes, and transmit the CSI feedback to the eNB in a CSI report.
Communication system and communication apparatus
A data storage processor of an HV-ECU transmits frame data including ID information indicating a kind of data and data information indicating the contents of the data to a motor ECU. When the motor ECU receives the frame data from the HV-ECU, a calculation processor of the motor ECU determines that the data information of the received frame data is data regarding the kind of data indicated by the ID information of the received frame data and executes a predetermined calculating process based on the data information. When the ID information of the frame data received from the HV-ECU is a synchronization ID, a data storage processor of the motor ECU starts a process of transmitting, to the HV-ECU, the frame data to be transmitted within the communication period.
Signal multiplexing device
A signal multiplexing device includes a selector (1) that selects one of input data (4) and a complementary signal (16), a clock recovery circuit (30a) that adjusts the phase of a recovered clock (7) to the timing of the output signal of the selector (1), and a flip-flop circuit (3) that performs identification/recovery of the output signal of the selector (1) based on the recovered clock (7). The frequency of the complementary signal (16) is an integral submultiple of the frequency of the recovered clock (7). The selector (1) selects the complementary signal (16) during part of the no-signal period of the input data (4).
System and method for controlling broadcast multimedia using plural wireless network connections
Digital multimedia is broadcast to wireless receivers on a unidirectional wireless broadcast channel, while control data necessary for presentation of the multimedia is provided on a bidirectional, point-to-point wireless link.
Multimedia broadcast forwarding systems and methods
In various embodiments, communication apparatus and methods for providing robust communications are disclosed. For example, an exemplary communication apparatus for distributing media to one or more receiving apparatus may include receiving circuitry to receive a first wireless multimedia broadcast signal containing at least a first media stream, transmitting circuitry to wirelessly transmit one or more individual media streams simultaneously to the one or more receiving apparatus using one or more wireless transmit signals, and decision circuitry configured to control the transmitting circuitry to transmit the first media stream to at least one receiving apparatus using at least one wireless transmit signal type based on a forward-link data capacity of each wireless channel between the transmitting circuitry and each receiving apparatus.
Optical feed-forward equalizer for MIMO signal processing
A feed-forward equalizer can be used in the host optical receiver to perform at least some of the desired signal processing in the optical domain, e.g., prior to coherently detecting and digitizing the received optical signal(s). In some embodiments, the signal processing implemented in the feed-forward equalizer can at least partially compensate the adverse effects of chromatic dispersion, polarization-mode dispersion, and/or spatial-mode mixing/crosstalk imparted on the received optical signal(s) in the optical transport link. This reduces the signal-processing load of and the signal-processing requirements to the receiver's electrical DSP.
Device and method for controlling lasing wavelength of tunable laser, and a wavelength division multiplexed-passive optical network having the same
The present invention discloses a device and method for controlling a lasing wavelength of a tunable laser, and a wavelength division multiplexed-passive optical network having the same.In a device and method for controlling a lasing wavelength of a tunable laser, and a wavelength division multiplexed-passive optical network having the same, it is possible to improve performance of the wavelength division multiplexed-passive optical network by automatically controlling a lasing wavelength of a tunable laser to be matched with a transmission wavelength of a wavelength division multiplexer/de-multiplexer using optical power or optical beating components obtained by a reflected optical component which is Raleigh backscattered or reflected, and is generated on an optical fiber.
Optical line terminal
To enable optical line terminal to detect input disconnection of optical burst signal accurately in spite of changes of transmission rate of optical-burst signal received from optical network unit, OLT (optical line terminal) includes photo-detector for converting the optical-burst signal received to current signal; preamplifier for converting the current signal to voltage signal; input disconnection detecting circuit for comparing output amplitude of preamplifier with threshold, and for outputting input disconnection signal indicating disconnection of input of the optical-burst signal; and control circuit for controlling conversion gain of preamplifier in a manner that the conversion gain becomes conversion gain corresponding to the transmission rate of the optical-burst signal received, and for controlling input disconnection detecting circuit in a manner that it outputs the input disconnection signal in response to the threshold corresponding to the transmission rate of the optical-burst signal received.
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.
Optical communications system
An optical communications system is disclosed. In the optical communications system, a received light source is modulated in accordance with an electrical signal using an acousto-optic modulator. The acousto-optic modulator modulates an amplitude of the received light source in accordance with an amplitude of the electrical signal. Furthermore, an angle of diffraction of a beam produced by the acousto-optic modulator is a function of a frequency of the electrical signal. The optical communications system is equipped with a waveplate that converts a polarization of the diffracted beam to correspond to the polarization of an undiffracted beam. Improved detection and recovery of the electrical signal may be achieved due to the polarization correspondence between the diffracted beam and the undiffracted beam.
Localisation of electronic equipment
Localization of an electronic device is enabled by establishing a localization environment wherein sources of visible light are configured to modulate onto emitted light a detectable signal, each signal bearing information identifying that light source, such that light incident on a device can be processed to identify particular sources of incident light and therefrom the location of the device.
Methods and devices for optimizing the operation of a semiconductor optical modulator
A semiconductor-based optical modulator includes a control loop to control and optimize the modulator's operation for relatively high data rates (above 1 GHz) and/or relatively high voltage levels. Both the amplitude of the modulator's driving voltage and the bias of the driving voltage may be adjusted using the control loop. Such adjustments help to optimize the operation of the modulator by reducing the number of errors present in a modulated data stream.
Method and system for evaluating an optical device
Light escaping from an optical path, for example via Raman or Rayleigh scattering, can provide information about how light flows in the path, about the optical path, or about matter disposed in the optical path. The path can be a waveguide, an optical channel, or a fiber that may be attached to or integrated with a substrate, for example in a passive or active planar lightguide/lightwave circuit, photonic integrated circuit, semiconductor laser, or optoelectronic element. The escaped light can be color-shifted with respect to the primary light flowing along the path. The escaped light can leave the path at an angle that facilitates detection. Processing or analyzing the scattered light, for example with support of a computing device, can help evaluate the path and/or assess a light intensity pattern thereof, for example to aid design, engineering, testing, qualification, troubleshooting, inspection, manufacturing, etc.
Reduced clock feed-through systems, methods and apparatus
Implementations of radio frequency switch controllers within the scope of the appended claims are configured to reduce the impact of the clock signal induced spurs. In particular, implementations of switch controllers described herein include a poly-phase clocking scheme, as opposed to a single phase to clock the charge pump stages of an negative voltage generator. In some implementations poly-phase clocking schemes reduce the clock signal induced spurs and may preclude the need for additional on-chip or off-chip decoupling capacitors that add to the cost and physical size of a complete front end module solution.
Near-field equivalent source representation for SAR estimation
Efficient techniques for estimating specific absorption rate (SAR) for wireless devices. In an aspect, electric and/or magnetic field measurements are made over a two-dimensional (2D) surface in the proximity of a wireless device. The field measurements are used to generate a near-field equivalent source representation of the wireless device. Specific absorption rate over, e.g., a 1 g/10 g mass may then be calculated by performing electromagnetic simulations using the near-field equivalent source representation. In an aspect, an elementary dipole array may be used to generate the near-field equivalent source representation from the field measurements.
System and method for communication between mobile devices using digital/acoustic techniques
Techniques have been developed for transmitting and receiving information conveyed through the air from one portable device to another as a generally unperceivable coding within an otherwise recognizable acoustic signal. For example, in some embodiments in accordance with the present invention(s), information is acoustically communicated from a first handheld device toward a second by encoding the information in a signal that, when converted into acoustic energy at an acoustic transducer of the first handheld device, is characterized in that the acoustic energy is discernable to a human ear yet the encoding of the information therein is generally not perceivable by the human. The acoustic energy is transmitted from the acoustic transducer of the first handheld device toward the second handheld device across an air gap that constitutes a substantially entirety of the distance between the devices. Acoustic energy received at the second handheld device may then be processed using signal processing techniques tailored to detection of the particular information encodings employed.
Method and system for optimizing signal recognition in a multiwavelength optical communication system
A system and method for optimizing signal recognition in a light communication system by approximately maximizing the minimum distance between received constellation points; the method comprising identifying the constellation region containing points for transmitting symbols, identifying channel impairments, transforming the constellation region according to the channel impairments into a constellation region of potential received symbols, using signal processing circuitry to apply an algorithm that operates to maximize the minimum distance between constellation points to obtain a symbol constellation in the receiver constellation region, and inverting the transformation to obtain the designed transmitted-symbol constellation. The system comprises signal processing circuitry for performing a preferred methodology.
Receiver of pulses of an ultra wide band type signal and associated method
A receiver of electromagnetic and a method for receiving electromagnetic signals transmitted in a frequency band having a predetermined upper limit fMAX and representing a stream of information by means of a modulation of pulses at a predetermined average pulse repetition frequency fPRP. The receiver includes an input stage including a band-pass filter and applys processing without changing frequency of the signals and a sampler of the processed signals operating at a sampling frequency fe that is an integer multiple of the average pulse repetition frequency fPRP and less than said upper limit fMAX.
Method and system for processing a signal
Method and receiver for processing a signal in a wireless communication system in which the signal comprises a sequence of chips. The signal is receive data at least one rake finger and sampled. There is a time spacing t1 between successive samples less than the time spacing tc between successive chips in the signal. Channel conditions on the channel are estimated and based on estimated channel conditions by the following steps: monitoring timing of the signal on one of the at least one rake finger to determine a time difference between the timing of the signal on the one of the at least one rake finger and the timing of the generation of the samples, the determined time difference being a multiple of t2, where t2
Full duplex communication system using disjoint spectral blocks
The invention involves utilizing pieces of disjoint spectral blocks. In one embodiment, a frequency division duplex approach is used, where each spectral block is utilized solely for either uplink or downlink communications. In another embodiment, a time division duplex approach is used, where each spectral block is time divided and uplink and downlink communications are assigned to different time slots within the same spectral blocks. In another embodiment, a code division duplex approach is utilized, where uplink and downlink communications are assigned different codes/hopping patterns within a same spectral block.
Method and apparatus for beam selection for a multibeam satellite communications system
An apparatus for beam selection for a multibeam satellite communications system including a very small aperture terminal (VSAT) with a remote satellite dish for sending and receiving RF signals and processor for calculating a normalized distance metric for user spot beams, selecting the user spot beam with the lowest normalized distance metric, and finding an outroute on the selected user spot beam using the remote satellite dish.
Transceiver and a repeater
The invention discloses a transceiver (210, 215; 305, 310, 320, 330) for use in a cellular communications system (200, 300), arranged to communicate with at least one other transceiver in the system by means of technology for Multiple Input Multiple Output, MIMO. The transceiver is also arranged to control the function of a repeater (206, 207, 208, 209; 340) which is arranged to forward communication between the transceiver and said at least one other transceiver, said control being carried out as a result of measured performance parameters of the communication between the transceiver and said at least one other transceiver. In one embodiment, the function in the repeater (206, 207, 208, 209; 340) which the transceiver is arranged to control comprises activation and deactivation of the repeater.
Control of SAR in mobile transmit diversity systems employing beam forming by using coupling between diversity branches
A system and method for maximizing signal strength while limiting specific absorption rate in diversity transmission network is achieved by coupling a first input signal to a second input signal. The system includes a sampler, a coupling network, and combiner.
Systems and methods for generating a pre-coding code book
In a network comprising a signal forwarding node, a pre-coding code book generating method, wherein the method comprises: generating a pre-coding code book, wherein the pre-coding code book comprises at least one pre-coding code word corresponding to the signal forwarding node, and the pre-coding code word comprises one or more antenna beamforming weights; and communicating the pre-coding code book to a user equipment.
Linear precoding in MIMO broadcast channel with arbitrary rank constraints
Methods and systems for transmission are shown that include iteratively generating an optimized precoder matrix and optimized linear filters for multiple receivers, where the optimized precoder matrix is based on a linear filter from a previous iteration and the optimized linear filters the multiple receivers are based on a precoder matrix from a previous iteration, precoding an input stream using the iteratively generated optimized precoder matrix to produce transmission streams for the multiple receivers, where at least one receiver has a plurality of associated transmission streams, and transmitting the transmission streams with multiple antennas to the receivers.
Beamforming using predefined spatial mapping matrices
In one or more aspects data packets are iteratively transmitted to a receiver using predefined spatial mapping matrices, channel estimates are received from the receiver responsive to iteratively transmitted data packets, and one of the predefined spatial mapping matrices is selected for transmitting additional data packets to the receiver based on the received channel estimates.
Multi-antenna signal processing method and device in uplink system
The disclosure discloses a multi-antenna signal processing method in an uplink system. The method includes that: after scrambling, modulation, layer mapping, pre-coding, transmission pre-coding, resource mapping and Single Carrier Frequency Division Multiple Access (SC-FDMA) signal generation are performed successively on a coded bit sequence corresponding to each codeword, a resulted signal is transmitted from each transmitting antenna port. The disclosure also provides a multi-antenna signal processing device in an uplink system. With the method and the device according to the disclosure, a lower Peak-to-Average Power Ratio (PAPR) or Cubic Metric (CM) of a signal to be sent can be ensured without imposing any constraint on a pre-coding matrix, thus reducing the cost and power consumption of a terminal whiling increasing transmission performance of the system.
User equipment for simultaneously transmitting signals to which different wireless communication systems are applied through a plurality of frequency bands
A user equipment (UE) including first and second antennas; a first wireless communication chip configured to output first and second signals corresponding to first and second frequency bands, respectively; a second wireless communication chip configured to output thirds signals corresponding to a third frequency band; and a radio frequency (RF) front-end module configured to transmit the first and second signals corresponding to the first and second frequency bands output from the first wireless communication chip to the first antenna, transmit the third signal corresponding to the third frequency band output from the second wireless communication chip to the first antenna, transmit the second signal corresponding to the second frequency band externally received in the first antenna to the first wireless communication chip through a secondary Rx path, transmit the second signal corresponding to the second frequency band externally received in the second antenna to the first wireless communication chip through a primary Rx path, and transmit the third signal corresponding to the third frequency band received in the first and second antennas to the second wireless communication chip.
Wireless power transceiver system
Coupled coil systems and methods are disclosed in which transmitter and receiver inductors, or coils, are coupled in a configuration for wirelessly transferring power among them. In preferred implementations, power may be transmitted and received using temporarily paired coupled coils. One preferred aspect of the invention is that the coils are not permanently affixed in physical proximity to one another, but can be moved and/or interchanged, and that the coils may be used to transmit or receive power based on their real-time relationships to other coils.
Transmitter with improved sensitivity and shielding
A magnetic field transmitter, especially a transmitter used in conjunction with wireless communications earplugs. In one embodiment, a plate of magnetic material is used behind a coil of electrical conductor to improve the efficiency of the transmitter and to provide electrical and magnetic shielding. The specific dimensions and characteristics of the preferred embodiment of the transmitter described herein provide for efficient wireless communications.
Channel decoding method and decoder for tail-biting codes
A channel decoding method and decoder are disclosed. The decoding method is based on a Circular Viterbi Algorithm (CVA), rules out impossible initial states one by one through iterations according the received soft information sequence, and finally finds the global optimal tail-biting path. In the present invention, all impossible iterations are ruled out through multiple iterations, and only the initial state having most likelihood with the received sequence survives. The algorithm is finally convergent to an optimal tail-biting path to be output. In addition, the method also updates a metric of a maximum likelihood tail-biting path (MLTBP) or rules out impossible initial states through the obtained surviving tail-biting path, thereby effectively solving the problem that the algorithm is not convergent due to a circular trap, providing a practical optimal decoding algorithm for a tail-biting convolutional code, reducing the complexity of an existing decoding scheme, and saving the storage space.
It is an object of the present invention to provide a technology that a microcomputer is capable of detecting the states of a large number of switches with a small number of ports. In a microcomputer system according to the present invention, any one of (2N−1) kinds of the combination patterns with respect to the combination of N input ports (IP1 to IP4) of a microcomputer (1) is allocated to each of M push-down switches (SW12, SW13, SW14, SW23, SW24, and SW34) with the different combination from each push-down switch. Each push-down switch inverts the input levels of the input ports in the combination pattern allocated thereto when pushed down. The microcomputer (1) detects the state of each push-down switch on the basis of the input levels of the N input ports.
Dynamic compression/decompression (CODEC) configuration
The present disclosure is directed dynamic compression/decompression (codec) configuration. In general, a device may include a codec configuration module to determine a configuration for use by the codec based on configuration criteria. The configuration criteria may include, for example, data characteristic information, system condition information and user expectation information. The configuration information may be used to select a codec configuration from one or more available codec configurations. For example, a benchmark module also in the device may determine the available codec configurations. After a codec configuration has been selected, it may be set in the codec. It may also be possible for the codec configuration module to monitor for changes in device operation (e.g., changes in the configuration criteria) and to update the codec configuration based on the monitored changes.
Entropy encoding and decoding scheme using VLC coding and pipe or entropy coding for high compression efficiency
Decomposing a value range of the respective syntax elements into a sequence of n partitions with coding the components of z laying within the respective partitions separately with at least one by VLC coding and with at least one by PIPE or entropy coding is used to greatly increase the compression efficiency at a moderate coding overhead since the coding scheme used may be better adapted to the syntax element statistics. Accordingly, syntax elements are decomposed into a respective number n of source symbols si with i=1 . . . n, the respective number n of source symbols depending on as to which of a sequence of n partitions into which a value range of the respective syntax elements is sub-divided, a value z of the respective syntax elements falls into, so that a sum of values of the respective number of source symbols si yields z, and, if n>1, for all i=1 . . . n−1, the value of si corresponds to a range of the ith partition.
Dynamically adjusted A/D resolution
A process variable transmitter is used to measure a process variable, and, in doing so, dynamically changes the resolution of the A/D converter based upon the measured value of the analog input signal. This can be done by automatically adjusting the configurable resolution gain adjustment based on the value of the analog signal being measured, by normalizing the input signal being measured so that it is centered in an optimal resolution window of the A/D converter, or by adjusting a voltage reference provided to the A/D converter.
A/D converter circuit, electronic apparatus and A/D conversion method
An A/D converter circuit includes a comparison circuit that performs a process to compare an added signal of a sampled signal of an input signal and a code signal with a D/A output signal, or a process to compare the sampled signal with an added signal of the D/A output signal and the code signal, a control circuit that outputs output data obtained based on successive approximation result data and the code data as A/D conversion data of the input signal, a first D/A converter circuit that D/A converts the data for successive approximation, a second D/A converter circuit that D/A converts code data that changes over time, and a correction section that performs a correction process, to correct the successive approximation result data so as not to overflow due to code shifting using the code data.
Split-path data acquisition signal chain
The present disclosure provides for split-path data acquisition chains and associated signal processing methods. An exemplary integrated circuit for providing a split-path data acquisition signal chain includes an input terminal for receiving an analog signal; an output terminal for outputting a digital signal; and at least two frequency circuit paths coupled with the input terminal and the output terminal, wherein the at least two frequency circuit paths are configured to process different frequency components of the analog signal and recombine the processed, different frequency components, thereby providing the digital signal.
Alignment of sampling phases in a multi-channel time-interleaved analog-to-digital converter
A multi-channel analog-to-digital (ADC) converter coupled to a clock-and-data-recovery loop that has a plurality of clock-recovery circuits, each configured to set the sampling phase for a respective one of the ADC channels in a manner that causes the different sampling phases to be appropriately time-aligned with one another for time-interleaved operation of the ADC channels. In an example embodiment, an individual clock-recovery circuit comprises a phase detector and a loop filter. Loop filters corresponding to different clock-recovery circuits may be coupled to one another by having shared circuit elements in their frequency-tracking paths and/or by being configured to receive timing gradients from more than one phase detector, including the phase detector of a selected one of the clock-recovery circuits.
Devices are provided comprising oscillator circuits coupled to a supply voltage via an adjustable resistance. Corresponding methods to control adjustable resistances are also provided.
Delay lock loop phase glitch error filter
A method and apparatus is provided for providing a phase glitch error filter for a delay lock loop. The device comprises a delay lock loop to provide an output signal based upon a phase difference between a reference signal and a feedback signal. The delay lock loop comprises a filter unit to provide filtering of noise on a phase control signal to substantially reduce a false delay lock loop state.
Frequency locking system
A frequency locking system for locking a clock frequency in a CDR circuit without crystal oscillator is provided. Reference data information is inputted into a first low-pass filter; the first low-pass filter is connected to a first swing detector; the first swing detector is connected to a non-inverting terminal of a comparator; an output terminal of the comparator is connected to a charge pump; the charge pump is connected to a first terminal of a capacitor; the capacitor is grounded. The capacitor is also connected to a voltage-controlled oscillator; the voltage-controlled oscillator is connected to a code pattern conversion generator; the code pattern conversion generator is connected to of a second low-pass filter; the second low-pass filter is connected to an input terminal of a second swing detector; an output terminal of the second swing detector is connected to an inverting terminal of the comparator.
Systems and methods of phase-locked loop involving closed-loop, continuous frequency range, auto calibration and/or other features
Systems and methods involving phase-locked-loop (PLL) circuitry are disclosed. In one illustrative implementation, a PLL circuit device may comprise voltage controlled oscillator (VCO) circuitry having a bias signal that sets a frequency range, circuitry that shifts the VCO circuitry to operate in one of the frequency ranges, and other circuitry to compare/calibrate signals and/or set the bias current. According to further implementations, as a function of operation of the circuitry, an operating frequency range of the VCO circuitry may be shifted to a different operating frequency range, and closed-loop, continuous frequency range, auto-calibration or other features may be provided.
Semiconductor device and electronic device
A semiconductor device includes a clock input circuit that receives an external clock signal, a PLL circuit for input timing control that performs phase adjustment between the external clock signal and a delayed clock signal to generate an internal clock signal used to acquire input data, and a delay circuit that delays the internal clock signal to output the internal clock signal that is delayed to a PLL circuit for input timing control as a delayed clock signal. The semiconductor device further includes a PLL circuit for output timing control that performs phase adjustment between the external clock signal and a delayed clock signal to generate an internal clock signal used to output output data, and a delay circuit that delays the internal clock signal to output the internal clock signal that is delayed to the PLL circuit for output timing control as a delayed clock signal.
Oscillator, oscillating method, image sensor, and imaging apparatus
An oscillator includes: inverters that are connected in a loop shape and of which the number is an odd number greater than or equal to three; and a delay section that delays change in a voltage which is input to one inverter of the odd number of inverters. The one inverter is a schmitt trigger inverter. The schmitt trigger inverter includes a current source, and a resistor in which current supplied by the current source flows. A hysteresis width of the schmitt trigger inverter depends on the current which flows in the resistor.
Phase lock loop with tracking filter for attenuating spurious signals of a swept local oscillator
A high spectral purity swept local oscillator including a tracking filter. The output of a swept DDS oscillator may be improved by filtering it with a band-pass filter having an adjustable center frequency, which is adjusted in real time to track the instantaneous frequency of the DDS oscillator. The tracking may be accomplished by comparing, using a phase comparator, the phase at the output of the band-pass filter to the phase at its input, and feeding back to the frequency control input of the band-pass filter a signal corresponding to the phase difference measured by the phase comparator.
Method and apparatus for tuning delay
Aspects of the disclosure provide a method for tuning delay. The method includes driving, during a calibration stage, at least one test signal from an integrated circuit onto a plurality of outside transmission lines that are coupled to the integrated circuit, measuring a timing of the at least one test signal transmitted and reflected over the plurality of outside transmission lines, and selectively delaying, using units disposed within the integrated circuit, signals subsequently transmitted over the plurality of outside transmission lines based on the timing of the at least one test signal, in order to align transmission times of the subsequently transmitted signals.
Circuit arrangement for determining a capacitance of a number of capacitive sensor elements
A circuit arrangement for determining a capacitance of a number n of capacitive sensor elements (SE1˜SEn) comprises at least one collecting capacitor (CS1˜CSm), a reference voltage source (RQ), an evaluation device (AE) connected to the at least one collecting capacitor to evaluate a voltage present at the at least one collecting capacitor, a control unit (MC) for generating at least one control signal (SS1˜SSk), and at least one integrated circuit (IC1˜ICm) connected to the reference voltage source, the sensor elements, and the at least one collecting capacitor. The at least one integrated circuit comprises a number k of changeover switches (WS1˜WSk) responsive to the at least one control signal to connect the respectively associated sensor element to the reference voltage source in a first switching position, and to the at least one collecting capacitor in a second switching position.
Touch sensor with integrated signal bus extensions
A touch sensor may be formed from a flexible substrate such as a sheet of polymer. The flexible substrate may have a main rectangular portion and a protruding portion. Capacitive touch sensor electrodes may be formed on the upper and lower surfaces of the flexible substrate. Signal lines may be coupled to the touch sensor electrodes. The ends of the signal lines may extend onto the protruding portion. Signal lines may be formed on upper and lower surfaces of the flexible substrate. The signal lines may be coupled to circuitry on a printed circuit using a connector that receives the end of the protruding portion. Ground structures on the protruding portion may be configured to overlap the signal lines or may be laterally interposed between upper surface signal lines and lower surface signal lines.
Circuit and method for power management
A method comprises identifying a number of power domains in a device, connecting the power domains to each other by a number of control devices during a wake-up mode of the device, and disconnecting the power domains after the wake-up mode of the device.
Programmable logic unit
Programmable logic units are described. A described unit includes one or more input interfaces to receive one or more input signals; logic elements that are individually programmable; one or more output interfaces to provide one or more output signals; and a programmable interconnect array that is configured to selectively form one or more interconnections within the unit based on one or more programming settings. The programmable interconnect array can be programmable to route the one or more input signals from the one or more input interfaces to at least a portion of the logic elements, programmable to route one or more intermediate signals among at least a portion of the logic elements, and programmable to route one or more signals from at least a portion of the logic elements to produce the one or more output signals via the output interface.
An object is to apply a transistor using an oxide semiconductor to a logic circuit including an enhancement transistor. The logic circuit includes a depletion transistor 101 and an enhancement transistor 102. The transistors 101 and 102 each include a gate electrode, a gate insulating layer, a first oxide semiconductor layer, a second oxide semiconductor layer, a source electrode, and a drain electrode. The transistor 102 includes a reduction prevention layer provided over a region in the first oxide semiconductor layer between the source electrode and the drain electrode.
A switching circuit (80) includes: a plurality of insulated gate transistors (30-33) connected in parallel between a high voltage line (L1) and a low voltage line (L2); gate resistors (50-53) each provided for one of the plurality of insulated gate transistors (30-33) and each including a first terminal connected to a gate electrode of each of the insulated gate transistors (30-33); and a single gate voltage application unit (60) configured to apply pulsing gate voltage to the gate electrode of each of the insulated gate transistors (30-33) via the gate resistors (50-53). A second terminal of each of the gate resistors (50-53) provided for each of the plurality of insulated gate transistors (30-33) is connected to the gate voltage application unit (60) via a gate voltage apply line (L3), and a single capacitor is connected between the gate voltage apply line (L3) and the high voltage line (L1).
Integrated circuits including magnetic devices
An integrated circuit includes a semiconductor die including one or more switching circuits, a magnetic core having length and width, first and second metallic leads, and integrated circuit packaging material. The first metallic lead forms a first winding turn around a portion of the magnetic core, and the first metallic lead is electrically coupled to the semiconductor die. The second metallic lead forms a second winding turn around a portion of the magnetic core. The first and second winding turns are offset from each other along both of the width and length of the magnetic core. The integrated circuit is included in an integrated electronic assembly.
Circuit arrangement and method for supplying a high-power functional component with high-voltage pulses
A circuit arrangement for supplying a high-power functional component with high-voltage pulses, having two input terminals for applying an input voltage, two output terminals for connection to a high-voltage terminal contacts of the high-power functional component, a plurality of charge storage modules, which each contain a capacitive element, and which are connected in series via at least one first switching device to the input terminals and via at least one second switching device to the output terminals, and a control device for activating the individual charge storage modules and the first and second switching devices. The charge storage modules and the control device are implemented such that in a charging phase, the first switching device is closed and the capacitive elements of the charge storage modules are connected successively individually or in groups in series to a charging voltage, then in a discharging phase the first switching device is opened and the charge storage modules are disconnected from the charging voltage and the second switching device is closed and at least a part of the capacitive elements of the charge storage modules are discharged, if a high-power functional component is properly connected to the output terminals, to form a voltage pulse. Furthermore, set forth is a method for supplying a high-power functional component with high-voltage pulses.
Signal transmitting assembly for cutting off driving signal for driving designated light source and electronic apparatus having the same
A signal transmitting circuit is provided for cutting off or outputting at least one driving signal for driving a designated light source. The signal transmitting circuit includes an input differential signaling driver, an output differential amplifier, and a fixed-voltage-level-difference supply device. The input differential signaling driver is for receiving a display signal, and outputting an inverting signal and a non-inverting signal according to the display signal. The output differential amplifier is for receiving the inverting signal and non-inverting signal and outputting or cutting off the driving signal according to the voltage-level difference between the inverting signal and the non-inverting signal. The fixed-voltage-level-difference supply device is for supplying a fixed-voltage-level difference to replace the inverting signal and the non-inverting signal received by the output differential amplifier; therefore the output of the output differential amplifier remains low voltage-level to cut off the output of light with a designated color.
High frequency oscillator
A frequency oscillator includes a ring oscillator having N inverters coupled in series, where N is an odd integer equal to three or more. A first filter is coupled between an output node of a first of the inverters and an output line of the frequency oscillator. A second filter is coupled between an output node of a second of the inverters and the output line of the frequency oscillator.
Oscillator and control method thereof
An oscillator and the control method thereof. The oscillator includes an oscillation unit to receive a first current and to generate an oscillating signal according to the first current, a frequency-to-voltage converter to receive the oscillating signal and to generate a converted voltage according to a frequency of the oscillating signal, and a voltage-to-current converter to receive the converted voltage and to generate the first current according to the converted voltage, wherein the first current is modulated from a first value to a second value after the initiation of the oscillation unit.
Elastic wave filter device and antenna duplexer using same
An elastic wave filter device includes a longitudinally coupled resonator-type elastic wave filter formed on a piezoelectric substrate; and a ladder-type elastic wave filter connected to the resonator-type elastic wave filter. The resonator-type filter includes an input IDT and an output IDT. The ladder-type filter includes a series arm resonator and a parallel arm resonator. A first ground electrode connected to the parallel arm resonator is electrically separated from a second ground electrode connected to at least one of the input IDT and the output IDT.
Substrate, duplexer and substrate module
In a substrate that improves isolation characteristics of a high-frequency-side signal path and a low-frequency-side signal path, a duplexer, and a substrate module, a package substrate includes two SAW filters mounted thereon and defines a portion of the duplexer. A substrate body includes main surfaces that oppose each other. Land electrodes are provided on one of the main surfaces and are used to connect either of the two SAW filters. Land electrodes are provided on one of the main surfaces and are used to connect a mounting substrate on which the duplexer is mounted and are respectively superposed with the land electrodes when viewed in plan from a z-axis direction. The land electrodes and the land electrodes, which are superposed with each other when viewed in plan from the z-axis direction, are electrically connected to each other.
Apparatus having double phase-matched configuration for reducing magnitude of intermodulation products
An apparatus includes: a first apparatus port receiving a first signal having a first frequency; a second apparatus port outputting the first signal having the first frequency; a first passive device connected between the first and second apparatus ports; a second passive device connected between the first and second apparatus ports; a plurality of phase shifters each providing a corresponding phase shift, wherein at least one of the phase shifters provides its phase shift in a first signal path between the first and second apparatus ports through the first passive device, and wherein at least another phase shifter provides its phase shift in a second signal path between the first and second apparatus ports through the second passive device. The phase shifts are selected to cancel an upper or lower intermodulation product between the first signal and a second signal having a second frequency received at the second apparatus port.
System and method for a microelectromechanical system (MEMS) is disclosed. A preferred embodiment comprises a first anchor region, a vibrating MEMS structure fixed to the first anchor region, a first electrode adjacent the vibrating MEMS structure, a second electrode adjacent the vibrating MEMS structure wherein the vibrating MEMS structure is arranged between the first and the second electrode.
Stacked bulk acoustic resonator comprising a bridge and an acoustic reflector along a perimeter of the resonator
In a representative embodiment, a bulk acoustic wave (BAW) resonator comprises: a cavity provided in a first layer and having a perimeter bordering an active region of the BAW resonator, a distributed Bragg reflector (DBR) bordering the cavity, wherein the first layer is one of the layers of the DBR; a first electrode disposed over the substrate; a first piezoelectric layer disposed over the first electrode; a second electrode disposed over the first piezoelectric layer; a second piezoelectric layer disposed over the second electrode; a third electrode disposed over the second piezoelectric layer; and a bridge disposed between the first electrode and the third electrode.
A balance filter includes an unbalanced terminal, a first balanced terminal, a second balanced terminal, a ground terminal, an unbalanced-side coupling coil, a balanced-side coupling coil electromagnetically coupled to the unbalanced-side coupling coil, and an unbalanced-side capacitor. The unbalanced-side capacitor, the unbalanced-side coupling coil, and a portion of the balanced-side coupling coil define an LC parallel resonant circuit. A first end of the balanced-side coupling coil is a terminal having the same polarity as that of a first end of the unbalanced-side coupling coil. A second end of the unbalanced-side coupling coil is connected to the first end of the balanced-side coupling coil.
Folded cascode amplifier
Exemplary embodiments are directed to systems, devices, and methods for enhancing an amplifier. An amplifier may include a first cascode circuit including a first transistor and a second transistor. The amplifier may include a second cascode circuit coupled to a differential output and including a first pair of transistors including a first transistor and a second transistor and a second pair of transistors including a third transistor and a fourth transistor. Further, the amplifier may include a differential input including a first transistor coupled to each of the first transistor of the first cascode circuit and the first and second transistors of the second cascode circuit, the differential input further including a second transistor coupled to each of the second transistor of the first cascode circuit and the third and fourth transistors of the second cascode circuit.
Analog feedback amplifier
An analog feedback amplifier is capable of suppressing extraneous phase fluctuations and broadening a bandwidth by preventing effects of a group delay element by using an amplitude regulator 21 and a delay line 24.
Dual band amplifier
A dual band amplifier is provided comprising a first matching circuit disposed in a first radiofrequency path between an input port and a first amplifier and a second matching circuit disposed in a second radiofrequency path between the input port and a second amplifier. The first matching circuit transforms a first input impedance of the first amplifier to a predetermined input port impedance when the radiofrequency signal is in a first frequency range and transmits the first input impedance to the input port when the radiofrequency signal is in the second frequency range. The second matching circuit transforms the second input impedance to the input port impedance when the input signal is in the second frequency range and transmits the second input impedance to the input port when the radiofrequency signal is in the first frequency range.
High level capable audio amplification circuit
The present invention relates to an audio amplification circuit with first and second signal channels which generate first and second digital audio signals with different signal amplifications from a common audio input signal and a method of amplifying a common audio input signal with different signal amplifications to provide first and second digital audio signals with different amplification. The audio amplification circuit is particularly well-adapted for cooperating with an external or integral audio signal controller configured for receipt and processing of the first and second digital audio signals.
System and method for capacitive signal source amplifier
In accordance with an embodiment, a system for amplifying a signal provided by a capacitive signal source includes a first voltage follower device, a second voltage follower device, and a first capacitor. The first voltage follower device includes an input terminal configured to be coupled to a first terminal of the capacitive signal source, and the second voltage follower device includes an input terminal coupled to the first output terminal of the first voltage follower device, and an output terminal coupled to a second output terminal of the first voltage follower device. Furthermore, first capacitor has a first end coupled to a first output terminal of the first voltage follower device, and a second end configured to be coupled to a second terminal of the capacitive signal source.
Optical detector system
An optical detector circuit comprises a photodetector including an optical input for generating a detection signal; a pre-amplifier including a pre-amplifier input and a pre-amplifier output for generating a pre-amplified signal, the pre-amplifier input coupled to the photodetector; and an amplifier including a amplifier input and an amplifier output for generating an output signal, the amplifier input coupled to the pre-amplifier output.
A digital amplifier includes a switch, a driving unit, an input signal detector, a control unit and a delay unit. The switch amplifies a signal input to the digital amplifier. The driving unit turns the switch on and off. The input signal detector detects whether an input signal is input to the digital amplifier. The control unit controls the switch to start switching when a signal is input to the digital amplifier and detected. The control unit controls the switch to stop the switching operation by stopping the driving of the driving unit, when the signal is not input to the digital amplifier and not detected. The delay unit delays an input signal to the digital amplifier by a predetermined time until the switching is started, so as to be transmitted to the switch. The switch amplifies the input signal sent to the digital amplifier via the delay unit.
Apparatus and methods for power amplifiers
Apparatus and methods for power amplifiers are disclosed. In one embodiment, a power amplifier circuit assembly includes a power amplifier and an impedance matching network. The impedance matching network is operatively associated with the power amplifier and is configured to provide a load line impedance to the power amplifier between about 6 Ω and about 10 Ω. The impedance matching network includes a fundamental matching circuit and one or more termination circuits, and the fundamental matching circuit and each of the of the one or more termination circuits include separate input terminals for coupling to an output of the power amplifier so as to allow the fundamental matching circuit and each of the one or more termination circuits to be separately tuned.
Control device for an electric motor
A control device for an electric motor of a cooling fan for the radiator of a motor vehicle has a control transistor connected to the motor, and an electronic control unit for controlling the speed of the motor. The control unit controls the transistor in such a manner as to limit the current flowing in the motor to a predetermined value when, by effect of the load conditions of the motor and the voltage applied to the motor, the current in the motor tends to exceed the predetermined value.
Electronic circuit arranged to control voltage applied to a load
The present invention is concerned with an electronic circuit that is connectable to a voltage source and a load. The circuit comprises a controllable load switch element that is arranged so that a supply voltage provided by the voltage source in a connected state is provided to the load when the load switch element is switched on and is not provided to the load when the load switch element is switched off and a voltage detection circuitry that in the connected state is coupled to the load so as to be energized by the voltage applied to the load. The circuit further comprises a switch-on circuitry that is coupled to the load switch element and is arranged to switch on the load switch element for a determined period of time after a switch arranged between the switch-on circuitry and the voltage source is closed. The proposed circuit allows for using a simple voltage detection circuit that is energized by the voltage to be measured by providing the switch-on circuitry.
Power stage precharging and dynamic braking apparatus for multilevel inverter
Precharging and dynamic braking circuits are presented for multilevel inverter power stages of a power converter with a shared resistor connected to charge a DC bus capacitor with current from the rectifier circuit in a first operating mode and connected in parallel with the capacitor to dissipate power in a dynamic braking mode.
Fuel cell system and control method therefor
A fuel cell system (10) includes: a motor (16); a fuel cell (11) and an electrical storage device (13) connected to the motor (16) in parallel with each other; a first voltage converter (12) between the motor (16) and the fuel cell (11); a second voltage converter (14) between the motor (16) and the electrical storage device (13); a load circuit between the motor (16) and both the first (12) and second (14) voltage converters; and a control unit (20). The control unit (20) stops boost operation of the first voltage converter (12) when conditions VFC>VM_min and VFC>VBAT+a whereas the control unit (20) prohibits a stop of the boost operation of the first voltage converter (12) when the conditions are not satisfied, wherein in the conditions, VFC is a fuel cell terminal voltage, VBAT is an electrical storage device terminal voltage and VM_min is a load circuit input terminal voltage, set to minimize a system loss while ensuring a torque required of the motor (16).
Power conversion circuit, multiphase voltage regulator, and power conversion method
Disclosed is a power conversion circuit that suppresses the flow of a through current to a switching element based on a normally-on transistor. The power conversion circuit includes a high-side transistor and a low-side transistor, which are series-coupled to each other to form a half-bridge circuit, and two drive circuits, which complementarily drive the gate of the high-side transistor and of the low-side transistor. The high-side transistor is a normally-off transistor. The low-side transistor is a normally-on transistor.
Adaptive dead time control scheme for switch mode power converter with synchronous rectifiers topology
An adaptive dead time (ADT) control scheme for use with a switch mode power converter having a full bridge with synchronous rectifiers topology. A controller which implements the control scheme includes an input circuit arranged to receive a signal representative of the converter's output voltage, and an output circuit arranged to operate the converter's switching elements and synchronous rectifiers to produce a desired output voltage. The controller is further arranged such that the converter's “dead time” is adaptively varied in an inverse relationship to the magnitude of the load current. In a preferred embodiment, the signals used to operate the synchronous rectifiers are PWM signals, and the controller adaptively varies the dead time in a linear inverse relationship to the magnitude of the load current by modulating the rising and falling edges of the signals used to operate the synchronous rectifiers.
Primary-side regulation for isolated power supplies
A DC-DC converter includes a primary side sense circuit to detect a load current of the DC-DC converter based on reflected current from a secondary winding of the DC-DC converter to a primary winding of the DC-DC converter. A primary side diode models effects of a secondary side diode that is driven from the secondary winding of the DC-DC converter. An output correction circuit controls a switching waveform to the primary winding of the DC-DC converter based on feedback from the primary side sense circuit and the primary side diode.
Method and circuit for controlling a switching regulator
A method for controlling a switching regulator includes defining a waiting time during which a trigger signal corresponding to a recirculation signal of the switching regulator is ignored holding a control switch in an open condition, and detecting a number of local valleys of the recirculation signal during the waiting time. In particular, defining the waiting time is performed for each switching cycle by adding a first value, which is determined on the basis of a load on the regulator, to a second variable value, which is proportional to the number valleys detected during the waiting time of the preceding switching cycle.
Synchronous rectifier control techniques for a resonant converter
A resonant converter system includes a first stage having inverter circuitry and resonant tank circuitry configured to generate an AC signal from a DC input signal, a transformer configured to transform the AC signal, and a second stage. The second stage features synchronous rectifier (SR) circuitry including a plurality of SR switches each having a body diode and SR control circuitry. SR control circuitry is configured to generate gate control signals to control the conduction state of the SR switches so that the body diode conduction time is minimized and a negative current across the SR switches is reduced or eliminated. The method includes controlling the conduction state of SR switches to conduct as the body diode associated with the switch begins to conduct and controlling the SR switch to turn off as the current through the switch approaches a zero crossing.
Switching power supply with optimized THD and control method thereof
A switching power supply comprising a switching circuit and a controller. The controller comprises a preprocessing circuit, a first multiplier, a first comparing circuit and a logic circuit. The controller comprises a preprocessing circuit, a first multiplier, a first comparing circuit and a logic circuit. The preprocessing circuit generates a first multiplication input signal based on the input voltage and output voltage of the switching circuit. The first multiplier multiplies the first multiplication input signal by a second multiplication input signal and generates a first product signal. The first comparing circuit compares a current sensing signal representative of the input current with the first product signal and generates a first comparison signal. The logic circuit turns off a main switch in the switching circuit when the current sensing signal is larger than the first product signal.
Protection circuit for protecting a half-bridge circuit
The present invention relates to a protection circuit for protecting a half-bridge circuit. The protection circuit detects an incorrect response of the half-bridge by monitoring the current of a first switch at a series resistor of a second switch. The protection circuit has a detector for detecting the voltage across the resistor and an evaluation circuit which is designed in such a manner that it evaluates an output signal from the detector after the first switch has been switched on and provides a fault signal at an output when the voltage across the resistor is greater than the threshold voltage.
Interleaved LLC converter employing active balancing
An interleaved LLC converter, a method of operating an LLC converter and a power supply are disclosed herein. In one embodiment, the LLC converter includes: (1) a plurality of LLC power channels, with each of the plurality having an independent power input and (2) a compensation controller configured to actively adjust the independent power inputs to substantially match output voltage and current levels for a given load condition and a common operating frequency of the plurality of LLC power channels.
DC-DC converter and portable device
A DC-DC converter includes: a step-up-or-step-down circuit including a choke coil and step-down and step-up transistor pairs; and a control circuit to control the transistor pairs based on an output voltage, wherein the control circuit includes: a differential triangular wave generation circuit to generate a positive-phase triangular wave signal and a negative-phase triangular wave signal; a switch to select the positive-phase triangular wave signal or the negative-phase triangular wave signal in response to a switching signal; an error detector to output an error signal; a PWM comparator to compare the positive-phase triangular wave signal or the negative-phase triangular wave signal with the error signal to generate a control pulse signal; a switching comparator to compare the error signal with reference potential and generate the switching signal; and a driver control circuit to generate a control signal for the transistor pairs based on the control pulse signal and the switching signal.
Control circuit, power supply device, and method of controlling power supply
A control circuit of a power supply that generates an output voltage from an input voltage includes a gain adjustment circuit that adjusts a gain of an alternating-current component of the output voltage. An addition circuit adds an output signal of the gain adjustment circuit to a first feedback voltage, which is in accordance with the output voltage, to generate a second feedback voltage. A voltage generation circuit generates a comparison reference voltage that changes at a given rate with respect to a first reference voltage that is set according to a target value of the output voltage. A switch control circuit controls the output voltage by switching a switch circuit, to which the input voltage is supplied, at a timing according to a result of a comparison of the second feedback voltage with the comparison reference voltage.
Methods and apparatus for supplying three phase power
Methods and apparatus for converting a single phase power supply source into a three phase power supply source. The single phase power supply source is utilized as a first output of the three phase power supply source, while the second and third outputs of the three phase power supply source are created utilizing part of the single phase power supply source combined with a phase shifting inverting circuit.
Drive output harmonic mitigation devices and methods of use thereof
A filter for filtering a three-phase electrical power waveform produces a three-phase output power waveform. The filter has an inductor with three sets of first and second coils, each having a capacitor connected in series therewith. Each of the three sets of first and second coils has a tap intermediate the first and second coils where the output waveform is present, each tap capable of being connected to a load. In some embodiments, the inductor is passive adaptive and includes resistors for reducing current in-rush.
Input offset control
Several circuits and methods for input offset control are disclosed. In an embodiment, a input offset control circuit includes a first input circuit and a second input circuit. The first input circuit is configured to operate within first common mode voltage range, configured to provide first input current, and configured to vary the first input current upon or subsequent to a variation of a voltage level in the first common mode voltage range. The second input circuit is coupled to the first input circuit and is configured to operate within second common mode voltage range, configured to provide a second input current, and configured to vary the second input current based on variation of the voltage level in the second common mode voltage range. Upon or subsequent to increasing the common mode voltage, the first input current is reduced and the second input current is increased.
Systems and methods for load transient prediction and compensation
Systems and methods are provided for regulating power in an integrated circuit system. A system includes a processing unit configured to monitor one or more operating parameters in the integrated circuit system. Based on the one or more monitored operating parameters, the processing unit is configured to predict an occurrence of an event that will cause an increased load on the integrated circuit system and further to assert a voltage adjustment command based on the predicted event. A power regulator is coupled to a power supply. The power regulator is configured to supply a regulated output voltage at a nominal voltage level. The power regulator is further configured to receive the voltage adjustment command and to supply the output voltage at an adjusted output level responsively to the voltage adjustment command.
Interchangeable stator with asymmetric pole shoe for electromagnetic retarder
A stator (1′) for electromagnetic retarders intended for vehicle gearbox and axle installations, includes at least one electromagnetic coils (2) assembly, two identical annular radial flanges (5′, 5″), and an asymmetrical pole shoe (6) on each radial transverse face of the two ends of each of the electromagnetic coils, and attached by a central axial screw (7), perforated attachment studs that are symmetrical relative to a median plane (M) between and parallel to the transverse faces, attached to the electromagnetic coil (2) support (5′, 5″) in order to attach the stator (1′) beside one or the other of the transverse faces to a stator support of the vehicle, using fasteners.
A brushless motor has a stator and a rotor. The stator has a stator core and stator windings. The stator core has a stator yoke and teeth extending radially inwardly from the stator yoke. The stator windings are formed by concentrated coils wound on the teeth. The rotor has a rotor shaft, a rotor core fixed to the rotor shaft and magnets fixed in slots formed in the rotor core. Each magnet is plate shaped and extends in both axial and radial directions of the rotor and each magnet is magnetically charged across its thickness so that a rotor pole is formed between two adjacent magnets. The ratio of the radial thickness (Y) of the stator yoke to the width (T) of the tooth body is from 0.4 to 0.7.
Method of manufacturing disk drive apparatus
A disk drive apparatus includes a rotor hub including an outer surface with a hub screw groove and a hub information mark indicative of a start position of the hub screw groove. A method of manufacturing the disk drive apparatus includes the steps of preparing a spindle motor including the rotor hub, preparing a clamper including a clamper screw groove, and fitting a recording disk to the spindle motor. The method further includes the steps of detecting a position of the hub information mark and, based on the detected position of the hub information mark, positioning each of the clamper and the spindle motor in a circumferential direction, and screwing the clamper to the spindle motor.
Self-excited eddy current liquid-cooled retarder
A self-excited eddy current liquid-cooled retarder is disclosed. The retarder pertains to an auxiliary braking device retarding a vehicle, and comprises a retarder rotor, a retarder stator, a control module and a generator unit. The retarder rotor comprises a retarder coil, an electromagnet core and a core cage. The retarder coil is wound on a coil frame. The electromagnet core is inserted into the coil frame. The electromagnet core, the retarder coil and the coil frame are evenly distributed on the circumference of the core cage. The retarder rotor is connected to a transmission shaft of an automobile. The inner circle of the retarder stator and the outer circle of the electromagnet core of the retarder rotor are coaxial. The generator unit comprises a generator exciting winding, a generator exciting magnetic pole, a generator armature winding and a generator armature core and is received in the retarder rotor.
Rotor assembly with integral cast conductor bars and first end rings and welded second end rings and method of manufacturing same
A method of manufacturing a rotor assembly includes placing a generally cylindrical rotor core in a die. The rotor core has axial grooves spaced about a perimeter of the rotor core. The grooves may be formed by stacked laminated disks. Material is cast around the annular rotor core in the die such that the cast material forms conductor bars that fill the grooves and first end ring portions at opposing ends of the rotor core connected with the conductor bars. Each of the first end ring portions has substantially a first axial width. The rotor core with cast conductor bars and cast first end ring portions is then removed from the die. A respective second end ring portion is welded to each of the cast first end ring portions to form end ring assemblies. Each second end ring portion has a second axial width greater than the first axial width.
Method for servicing generator rotor in-situ
A method for servicing a rotor of a generator includes the steps of, dismantling a non-drive end of the generator, removing insulation from portions of an existing Wye ring and existing connection lugs, removing portions of the existing Wye ring near the existing connection lugs, installing a replacement Wye ring in the generator, connecting the replacement Wye ring to the existing connection lugs, and insulating the replacement Wye ring and the existing connection lugs. The method is performed on the generator in-situ.
Microgenerator for hydrocarbon producing systems
A microgenerator for use in petroleum distribution systems includes a casing defining an interior portion and an exterior portion. The casing has an opposed first support wall and second support wall coupled within an inner diameter of a cylinder containment wall. At least one fluid inlet penetrates the cylinder containment wall. The fluid inlet is fluidly coupled to an energized fluid source. At least one nozzle is fluidly coupled to the fluid inlet. The nozzle is configured to accelerate the fluid into the interior portion. At least one fluid outlet penetrates the cylinder containment wall. The fluid outlet is configured to discharge the fluid from said interior portion of the casing. An impulse turbine is located within the interior portion. The turbine has a first stator coupled to the first support wall and a second stator coupled to the second support wall opposite the first stator. A rotor is rotatably mounted between the first stator and the second stator on a shaft at a central axis of the rotor. The rotor includes an array of turbine blades integral to the rotor at an outer perimeter of the rotor. The nozzle is aligned to direct the fluid against the array of turbine blades to rotate the rotor about the central axis. A set of permanent magnets are fixed into the rotor proximate the turbine blades between the perimeter and the shaft. At least one electromagnetic core and coil assembly is fixed into the first stator arranged in a periphery about the central axis and is electromagnetically coupled to the set of permanent magnets and is configured to generate an electric current in cooperation with the set of permanent magnets.
Semiconductor device having power source selection circuit and method for selecting power source
A semiconductor device includes a power source selection circuit configured to turn on and off each of a plurality of power source switches. The power source selection circuit includes a power source selection unit configured to select one power source from among the plurality of power sources, and a feedback control unit configured to output an on command signal to turn on an electrical connection between the selected power source and the electric circuit to a power source switch to be connected to the selected power source. When the power source selection unit switches a power source to select to another, the feedback control unit feeds back a signal indicative of that an off command signal to turn off electrical connections between the plurality of power sources and the electric circuit has been output to all of the plurality of power source switches at a predetermined delay time.
Battery pack for electric power tool, and battery connection device
A battery connection device is provided with an authentication data creating unit that creates authentication data, a conversion unit that performs a first conversion of the authentication data, a transmission unit that transmits the authentication data to a battery pack, a receiving unit that receives from the battery pack a battery-side conversion result that is data obtained after the authentication data is converted by the battery pack, a reverse conversion unit that, on an assumption that the battery pack creates the battery-side conversion result by performing the first conversion and a second conversion on the authentication data, performs a reverse conversion of the second conversion on the battery-side conversion result, and a determination unit that determines whether or not the battery pack is an authentic product by comparing a result of the reverse conversion with a result of the first conversion.
Over-current protection circuit for light source driving module and related backlight module
The present invention discloses an overcurrent protection circuit for a light source driving module and a related backlight module. The overcurrent protection circuit includes an average value overcurrent protection circuit for detecting an average voltage at a node where the switch is connected to the detection resistor and generating the turning-off signal to turn off the switch when the average voltage is larger or equal to a threshold average voltage, wherein the average voltage is formed by an average current of the switch. Through the above-mentioned mechanism, the present invention can prevent the working power of a power device from being larger than its rated power. Therefore, it also prevents the power device from catching a fire due to a potential high temperature.
Combination GFCI/AFCI receptacle with class 2 power units
A combination AC receptacle and low voltage class 2 power units are provided in a standard single strap flush wall-mount outlet so that portable battery operated electronic devices may be charged without having to use a special AC charger. Ground fault circuit interrupter (GFCI) and/or arc fault circuit interrupter (AFCI) capabilities are also provided so that this combination AC receptacle and low voltage class 2 power units, e.g., USB receptacles, may used in occupancy locations requiring such protections under current electrical building codes. A standard wall cover plate is used to finish off installation of this flush wall-mount outlet into a wall outlet box. Also a data interface may be provided to allow a PDA or PC to control smart wiring systems through the USB receptacle.
Electrostatic discharge clamp with disable
In a particular embodiment, a circuit includes a power supply, a ground, and a clamping transistor circuit coupled to the power supply and to the ground. The circuit further includes a disable clamp circuit. The disable clamp circuit is coupled to the power supply and is responsive to a second power supply input to selectively disable the clamping transistor circuit by modifying a charging current applied to a capacitor of the clamping transistor circuit. In a particular embodiment, modifying the charging current includes enabling a second charging path. Enabling the second charging path enables charging the capacitor at a higher charging rate than a charging rate associated with charging the capacitor via a first charging path.
Power generation and control system
A power generation and control system is easily installed in a consumer household, a business, or an end-user establishment for generating power and preventing power from flowing to a power grid from a consumer circuit during a power outage. A communications transceiver is adapted to transmit a permission signal for allowing power generation only after the control system has been installed. The control system can be adapted to replace an existing circuit breaker in a household circuit breaker box and prevents power from traveling from consumer power generators to the grid during a power outage. In the same manner that end-users can add appliances to existing circuits, end-users can easily add additional power generation devices without hiring a professional electrician and without worrying about causing harm to utility workman during power outages.
Cable tracing in a datacenter
Embodiments of the invention provide a method of tracing cable through a datacenter. The method causes a cable to emit a radio frequency signal along the length of the cable. One or more structural members have a detection circuit that will illuminate in response to detecting the radio frequency signal with greater than a threshold signal strength, such that the one or more structural members are easy to identify when the detection circuit is illuminated. The one or more structural members may be removed to gain physical access to the cable.
Cable stripping device
A cable stripping device includes a mounting seat, a slice mechanism and a cutting mechanism. The slice mechanism is slidably mounted on the mounting seat and capable of slicing a dielectric material of a cable along a axial direction of the cable and dividing the cable into a plurality of strips. The cutting mechanism is mounted on the mounting seat adjacent to the slice mechanism. The cutting mechanism includes a pair of cutting members, the pair of cutting members are capable of moving toward each other to cut the plurality of strips along a radial direction of the cable to enable the plurality of strips separate from the cable.
Electric junction box
Provided is an electric junction box which prevents highly-pressured water invading into a case from blowing to components in the case. The electric junction box includes a case including a frame to which a plurality of components is to be attached, a lower cover arranged to be attached to the frame. The frame includes a first side wall. The lower cover includes a second side wall and a flange. An upper end of the second side wall is positioned inside the first side wall, and a lower end of the first side wall abuts onto the flange. An outer face of the second side wall above the flange includes a parallel face and a tapered face. The parallel face has a length of 3 mm or more, and the tapered face has a length of 3 mm or more.
Support structure for boss
There is provided a support structure for a boss of a resin molded product. A plurality of cylindrical bosses stands up from one surface of a base plate to support a component. A plurality of reinforcing ribs extends radially from an outer circumferential surface of at least one of the bosses. The reinforcing ribs are arranged so as to be spaced apart from each other at a regular interval in a circumferential direction of the at least one of the bosses. Building-up portions are formed only on corner portions in which the outer circumferential surface of the at least one of the bosses and the reinforcing ribs intersect with each other.
Inlet box mounting structure of car
A mounting structure of an inlet box of a car which includes an outer panel of the car having a hole, an inlet box inserted in the hole, a flange provided around the opening of the inlet box and an engaging claw provided on the outer peripheral surface of the inlet box. The flange is set around the hole from the outside onto the edge. The flange is screwed to the edge of the hole of the outer panel from the inside. The engaging claw engages the hole of the edge of the outer panel from the inside when the flange is set on the edge of the hole. The engaging claw is capable of disengaging from the edge of the hole by a disengagement operation occurring inside the outer panel.
Electrode core material for spark plugs
An electrode core material that may be used in electrodes of spark plugs and other ignition devices to provide increased thermal conductivity to the electrodes. The electrode core material is a precipitate-strengthened copper alloy and includes precipitates dispersed within a copper (Cu) matrix such that the electrode core material has a multi-phase microstructure. In several exemplary embodiments, the precipitates include: particles of iron (Fe) and phosphorous, particles of beryllium, or particles of nickel and silicon.
Horn spark gap lightning arrestor with a deion chamber
The invention relates to a horn spark gap lightning arrestor with a deion chamber (6) for quenching arcs in a housing (1) and controlling the internal gas flow for adjusting a different response of the arc produced in the case of power pulse current loading, on the one hand, and of the arc induced by follow-on current, on the other hand. For this purpose, the distance between the opposite electrode faces of the horn spark gap in the striking region is kept very small and there is only a slight widening of the distance in the diction of the end of the horn spark gap in order to prevent undesired migration of the arc in the event of lighting pulse current.
Solid state laser device
During temperature tuning, first, the temperature of a third harmonic generating element is swept to determine the optimal temperature Ttp of the third harmonic generating element in a state where the temperature of a second harmonic generating element has been set to a temperature shifted away from the vicinity of the optimal temperature. Next, the temperature of second harmonic generating element is swept to determine the optimal temperature Tsp of the second harmonic generating element in a state where the temperature of the third harmonic generating element has been set to a temperature shifted away from the vicinity of the optimal temperature.
Optical component, optical fiber amplifier, and optical fiber ring resonator
An optical component includes a multicore optical fiber and an I/O optical fiber. The multicore optical fiber has longitudinally extending cores within a common cladding. The cores are arranged on a circumference of a circle centered at a fiber axis in an end face of the multicore optical fiber. Both end faces of the multicore optical fiber are connected to each other such that the cores of the multicore optical fiber are optically connected to each other. Both end faces of the multicore optical fiber are adapted to rotate relative to each other about the fiber axis.
Hand operated crimping tool
A hand operated crimping tool comprising a body arranged between a distal end and a proximal end of the crimping tool, a tool head arranged distally on the crimping tool, and handles arranged proximally on the crimping tool, where at least one handle is arranged pivotally to the body, and where the tool head is arranged axially slidable along the body. A distal crimping die is arranged at the tool head and a proximal crimping die is arranged at the body between which crimping dies a workpiece is to be crimped. The movement of the handles is connected to the movement of the tool head by a mechanism, whereby the tool head is movable between a distal non-crimping position and a proximal crimping position depending on the relative position of the tool handles.
Network communication connector fabrication method
A network communication connector fabrication method for making network communication connectors is performed by: employing a cold drawing technique to repeatedly draw a metal round rod into a thin thickness conducting contact bar, stamping one end of the thin thickness conducting contact bar into a mating contact portion, stamping the thin thickness conducting contact to form an interference portion and a bonding portion, cutting off the thin thickness conducting contact bar subject to a predetermined length, repeating the above steps to obtain multiple metal contacts, electroplating the metal contacts, setting the metal contacts in two contact material strips and inserting the metal contacts in a mold, and then using an injection molding technique to mold an electrically insulative terminal block on the interference portions of the metal contacts to form a semi-finished product for making a network communication connector.
Differentially coupled connector
A connector is provided with a pair of terminals configured to provide a differential signal pair. A ground terminal is positioned on opposing sides of the differential pair. The body of the differential pair is configured so as to bring the differential pair closer together. In an embodiment, the % coupling on the differential pair is increase at least 10% more than a design where the four terminals are positioned at a constant pitch between the tail and the contact.
Connector unit and connector
A connector unit includes a first connector configured to be connected to an electrical apparatus, the first connector including multiple power receiving terminals for receiving a supply of electric power; and a second connector configured to be connected to a direct-current power supply and mated with the first connector. The second connector includes multiple power feeding terminals corresponding to the power receiving terminals of the first connector and a switch member configured to be moved between a connecting position for electrically connecting the power feeding terminals and the direct-current power supply and a breaking position for breaking the connection of the power feeding terminals and the direct-current power supply.
A connector of the present invention includes a first connector housing (11) and a second connector housing (101) which are fitted to each other, a fitting operation member (20) which makes the first connector housing 11 and the second connector housing, which are initially fitted, to be completely fitted, a grommet (40) which urges the fitting operation member to move from a standby position to an operational position, and temporary locking arms (16) which, while the fitting operation member is temporarily locked at the standby position and the first connector housing and the second connector housing are initially fitted, cancel the temporary locking.
Electrical connection terminal
An electrical connection terminal having a housing, two clamping springs and a current bar, wherein a chamber is formed in the housing for receiving the clamping springs and at least one end of the current bar as well as a conductor insertion opening for inserting two conductors, and wherein the clamping springs are arranged next to each other in relation to the longitudinal extension of the current bar. In the electrical connection terminal, the clamping springs each have a clamping leg, an operating leg and a back which connects the two legs to one another, wherein the clamping limbs, together with the current bar form, in each case, a clamping point for a stripped conductor that is to be connected. Moreover, a spring receptacle is provided within the chamber, which has a partition, the two clamping springs being disposed on a respective side of the partition.
Compression connector for clamping/seizing a coaxial cable and an outer conductor
A connector comprising a connector body having a first end and a second end, the connector body configured to receive a prepared coaxial cable, the prepared coaxial cable including an outer conductor and a center conductor, a clamp disposed within the connector body, the clamp including an internally threaded portion and a ramped surface, wherein the clamp threadably engages the prepared coaxial cable, a moveable ramped component disposed within the connector body, the moveable ramped component including an internally ramped surface, and a compression member configured for axial movable engagement with the connector body, wherein, upon axial compression of the compression member, the outer conductor flares out and is pressed between the ramped surface of the clamp and the internally ramped surface of the moveable ramped component is provided. Furthermore, a clamp and an associated method are also provided.
Connector cap waterproof structure
A connector cap for use in a portable electronic device including a base; a connector-facing portion formed integrally with the base; and a sealing member formed of an elastic material in a ring-like shape and joined to the base, wherein the connector-facing portion includes a flexible member that has an elongated shape and is configured to extend away from the base and toward an inside of a casing of the portable device, wherein the flexible member is disposed from a position on the connector-facing portion that is within an inner area enclosed by the ring-like shape of the sealing member.
A connector includes a plurality of connection terminals, a housing, an installing part and a sealing member. Cables are connected to the connection terminals. The housing holds the connection terminals. The installing part is formed by a part of the housing, and is fitted into a mounting hole of a connection counterpart. The sealing member is provided in the installing part, and seals between the installing part and the mounting hole. Connecting tab parts provided in the connection terminals are connected to a terminal block provided at the connection counterpart side. The connection terminals includes a confluent connection terminal including a plurality of cable connecting parts to which a plurality of the cables are connected and one of the connecting tab parts.
A cover module includes a housing provided with a connecting hole, a cover unit disposed in proximity to the connecting hole and movable between closed and open positions that respectively closes and opens the connecting hole, a magnetic member disposed in the housing, a biasing member biasing the cover unit toward the closed position, and a limiting mechanism having a limiting plate cooperating with the housing to define a receiving slot which restricts sliding movement of the magnetic member therewithin. When an electronic component approaches the connecting hole, the magnetic member is magnetically pulled to move toward the connecting hole, simultaneously pushing the cover unit to the open position.
Method and apparatus for preventing access to electrical contacts
An electrical contact device may include an insulating first body having a first surface, one or more electrical contacts received in the first body and protruding a distance from the first surface, and an insulating second body configured to prevent access by an object such as a human body portion to the protruding electrical contacts. The second body may include a first side wall and a second side wall which are configured to allow the one or more electrical contacts protruding from the first surface to be interposed between the first and second side walls. The first and second side walls may define a width smaller than a dimension of an object such as a body portion so that access by the object to the one or more electrical contacts protruding from the first surface can be prevented.
System and method for connecting a power cable with a submersible component
A technique is provided for connecting a power cable to a submersible component. A connector system is used to form the connection and comprises a plurality of individual connectors for connecting power carrying conductors to the submersible component. Each of the individual connectors is separately connectable to the submersible component which enables improved sealing with respect to the submersible component. In multi-phase power applications, individual connectors can be used for each phase.
Connection terminal and method for manufacturing connection terminal
A connection terminal includes a terminal connection portion to be connected with a partner terminal, a wire connection portion connected with a wire, a neck portion connecting the terminal connection portion and the wire connection portion, and a resin covering portion covering a connection portion of the wire connection portion and the wire. The neck portion has a bottom wall and a pair of side walls installed upright from both sides of the bottom wall and having parallel wall portions equally spaced from each other.
Magnetic alligator clip
A magnetic alligator clip is described. The alligator clip comprising, a pair of conductive gripping jaws attached to each other, biasing means for biasing a first end of the conductive gripping jaws towards each other, and a magnet disposed at the first end of one of the conductive gripping jaws. Also described is an electrical lead having at least one wire, each of the wires having a magnetic alligator clip electrically connected at each end. An extension for the magnetic alligator clip is also described.
Battery wiring module
A battery wiring module including first connecting members that connect adjacent electrode terminals of a plurality of electric cells to serially connect the plurality of electric cells; second connecting members, one end of each of which is connected to the electrode terminal at one end of the serial connection and the other end of each of which is connected to an external conductive member; and a resin protector that holds the first connecting members and the second connecting members. The resin protector includes first holding portions that hold the first connecting members and second holding portions that hold the second connecting members. Concave engaged portions are provided in the second connecting members and convex engaging portions are provided in the second holding portions for engaging the concave engaged portions to limit the movement of the second connecting members.
Cable connection, in particular for photovoltaic systems
A cable connection, preferably for photovoltaic systems, having a contact housing and a connection housing. The connection housing can be connected to the contact housing and serves to accommodate a cable which can be configured as required and has a conductor. The connection housing is intended to accommodate the cable which is to be connected and has the conductor. A contact needle for making contact with the conductor of the cable which is to be connected is arranged on the contact housing and a spring device is intended to radially surround the conductor and the contact needle and to press together said conductor and contact needle in a spring-elastic manner.
A joint connector (10) collectively connects wires to a body (B) of a vehicle. The joint connector (10) has a conductive plate (30) with a main body (31) including a plurality of terminals (32B) to be connected to female terminals at ends of the wires and to be bolt-fastened to the body (B). A housing (20) is arranged around the terminals (32B). The conductive plate (30) includes a coupling portion (32A) for coupling the terminals (32B) to each other, a bolt fastening portion (34) with a bolt hole (35) through which a ground bolt (B2) is to be inserted, a rotation preventing piece (33) at a side of the bolt fastening portion (34) opposite to the coupling (32A) to prevent rotation of the main body (31), and ribs continuous from the rotation preventing piece (33) to the coupling (32A) across the main body (31).
Plug-in wire connection terminal structure
A plug-in wire connection terminal structure includes a main body having a receiving space. The receiving space is formed with an arched guide slot. A holding plate has a receiving section. Lateral sides of the receiving section are respectively formed with a wire entrance and a conductive contact section formed with a socket. An annular wall of the socket is formed a slit. A small-diameter fitting section is disposed at the conductive contact section. A collar member is fitted on the fitting section. A connection section is disposed on the receiving section. A leaf spring has a bight section received in the arched guide slot. One end of the leaf spring is formed with a connected section latched with the connection section. The other end of the leaf spring is formed with an abutment end obliquely extending the receiving section.
Wireless local area network adapter
A wireless local area network adapter includes a housing, a printed circuit board, an antenna, at least one elastic sheet and a plug. The printed circuit board includes a first ground plane. The antenna is electronically connected to the first ground plane. The elastic sheet is positioned on the printed circuit board, and is electronically connected to the first ground plane. The plug includes a shell, at least one part of the shell made of metal, the at least one elastic sheet contacting the metal part of the shell for electronically connecting the shell.
Dipole antenna assembly having an electrical conductor extending through tubular segments and related methods
A dipole antenna assembly may include a first tubular dipole element and a coaxial antenna feed extending through a proximal end of the first tubular dipole element. The coaxial antenna feed may have an inner conductor, an outer conductor, and a dielectric therebetween. The inner conductor may extend outwardly beyond a distal end of the first tubular dipole element. The outer conductor may be coupled to the distal end of the first tubular dipole element. The dipole antenna assembly may further include a second tubular dipole element with a proximal end being adjacent the distal end of the first tubular dipole element, and being coupled to the inner conductor. The second tubular dipole element may include first and second tubular segments and an electrical conductor extending through the first and second tubular sections and being coupled thereto at both the proximal and distal ends.
Power combiner/distributor, power amplifying circuit, and wireless apparatus
A power combiner/distributor including first, second, and third waveguides connected with each other in a planar shape, and for either one of distributing power inputted from the first waveguide to the second and third waveguides and combining powers inputted from the second and third waveguides to input the combined power to the first waveguide is provided. The power combiner/distributor includes a branch circuit connected with the first waveguide and for branching a transmission path formed in the first waveguide into first and second transmission paths, and decoupling circuits connected with the branch circuit and also to the second and third waveguides, respectively, the decoupling circuits having a power losing resonator coupled to the second and third waveguides, resonating within an operation frequency band, and causing a power loss.
Battery system and method for cooling a battery cell assembly
A battery system having first and second battery cells and a cooling fin disposed between the first and second battery cells is provided. The cooling fin receives heat energy from the first and second battery cells and transitions a two-phase refrigerant into a gaseous refrigerant within an internal flow path. The compressor pumps the gaseous refrigerant into a condenser. The condenser transitions the gaseous refrigerant into the liquid refrigerant by extracting heat energy from the gaseous refrigerant.
Self heating battery system
A battery self heating system for batteries that experience battery impedance or internal battery resistance when temperature drops. The system comprises an energy storage element applied to the battery terminals to draw energy from the battery. The energy is stored in a magnetic or capacitive storage device. The system is self-resonant so that energy transfer from the storage device to the battery will occur at a frequency and load level that is compatible with the current state of the battery. Internal heating of the battery is accomplished by a cycle comprising the out flux and influx of energy through the impedance of the battery. Energy losses due to battery impedance are converted to heat thereby heating the battery internally.
Cable-type secondary battery and preparation thereof
The present disclosure provides a cable-type secondary battery, comprising: an inner electrode; and a sheet-form laminate of separation layer-outer electrode, spirally wound to surround the outer surface of the inner electrode, the laminate being formed by carrying out compression for the integration of a separation layer for preventing a short circuit, and an outer electrode.According to the present disclosure, the electrodes and the separation layer are compressed and integrated to minimize ununiform spaces between the separation layer and the outer electrode and reduce the thickness of a battery to be prepared, thereby decreasing resistance and improving ionic conductivity within the battery. Also, the separation layer coming into contact with the electrodes absorbs an electrolyte solution to induce the uniform supply of the electrolyte solution into the outer electrode active material layer, thereby enhancing the stability and performances of the cable-type secondary battery.
Nonaqueous electrolytic solution and nonaqueous-electrolyte battery
Disclosed is a nonaqueous electrolytic solution which enables formation of a nonaqueous-electrolyte battery having high capacity and excellent storage characteristics at high temperatures, while sufficiently enhancing safety at the time of overcharge. A nonaqueous-electrolyte battery produced by using the nonaqueous electrolytic solution is also disclosed. The nonaqueous electrolytic solution comprises an electrolyte and a nonaqueous solvent, and includes any of specific nonaqueous electrolytic solutions (A) to (D).
Method for producing nonaqueous-electrolyte battery and nonaqueous-electrolyte battery
A positive-electrode body 1 is prepared that includes a positive-electrode active-material layer 12 including a powder-molded body, and a positive-electrode-side solid-electrolyte layer (PSE layer) 13 that is amorphous and formed on the positive-electrode active-material layer 12 by a vapor-phase process. A negative-electrode body 2 is prepared that includes a negative-electrode active-material layer 22 including a powder-molded body, and a negative-electrode-side solid-electrolyte layer (NSE layer) 23 that is amorphous and formed on the negative-electrode active-material layer 22 by a vapor-phase process. The positive-electrode body 1 and the negative-electrode body 2 are bonded together by subjecting the electrode bodies 1 and 2 being arranged such that the solid-electrolyte layers 13 and 23 of the electrode bodies 1 and 2 are in contact with each other, to a heat treatment under application of a pressure to crystallize the PSE layer 13 and the NSE layer 23.
Method for manufacturing nonaqueous secondary battery electrode
A method is provided for manufacturing an electrode that has a porous inorganic layer on the surface of an active material layer and is suitable for constructing a nonaqueous secondary battery with excellent input-output performance. In this manufacturing method, an electrode perform, which has an active material layer (344) consisting primarily of active material particles (42) and supported on a collector (342), is prepared. The water concentration of at least the surface (344a) of the active material layer (344) is adjusted to 100 ppm to 500 ppm. A slurry (S) containing inorganic particles (44), a binder and an organic solvent is coated on the surface (344a) of the active material layer with the water concentration thus adjusted, to form a porous inorganic layer.
Through weld interconnect joint
An electric storage battery including a jelly roll type electrode assembly having a mandrel. The mandrel includes a positive portion, a negative portion and a removable portion. The mandrel can be planar, having two faces with grooves on the positive and negative portions. The grooves are dimensioned to accommodate positive and negative feedthrough pins. The mandrel is welded to the feedthrough pins by using a laser beam incident on the opposite face of the mandrel from the face on which the grooves and pins are located. The laser beam melts the mandrel such that molten mandrel material fills the grooves welding the feedthrough pins in place. Electrodes are wrapped around the mandrel using the removable portion to wind the mandrel. The removable portion can be detached. The mandrel allows tighter wrapping of the jelly roll assembly and increasing battery miniaturization.
Carbon monofluoride impregnated current collector including a 3D framework
One example includes a battery case sealed to retain electrolyte, an electrode disposed in the battery case, the electrode comprising a current collector formed of a framework defining open areas disposed along three axes (“framework”), the framework electrically conductive, with active material disposed in the open areas; a conductor electrically coupled to the electrode and sealingly extending through the battery case to a terminal disposed on an exterior of the battery case, a further electrode disposed in the battery case, a separator disposed between the electrode and the further electrode and a further terminal disposed on the exterior of the battery case and in electrical communication with the further electrode, with the terminal and the further terminal electrically isolated from one another.
Method for manufacturing anode active material for lithium secondary battery, anode active material for lithium secondary battery manufactured thereby and lithium secondary battery using same
The present invention provides a method for manufacturing an anode active material for a lithium secondary battery comprising the following steps of: a) simultaneously mixing a first metallic salt aqueous solution including nickel, cobalt, manganese and optionally a transition metal, a chelating agent, and a basic aqueous solution in a reactor, and mixing with a lithium raw material and calcining to manufacture a center part including the compound of following Chemical Formula 1: Lix1[Ni1−y1−z1−w1Coy1Mnz1Mw1]O2 Chemical Formula 1 (wherein, 0.9≦x1≦1.3, 0.1≦y1≦0.3, 0.0≦z1≦0.3, 0≦w1≦0.1, and M is at least one metal selected from the group consisting of Mg, Zn, Ca, Sr, Cu, Zr, P, Fe, Al, Ga, In,Cr, Ge, and Sn); b) simultaneously mixing a second metallic salt aqueous solution including nickel, cobalt, manganese and optionally a transition metal, the chelating agent, and the basic aqueous solution in a reactor, mixing with the lithium raw material and calcining, and grinding thereof to the size of nanometers to manufacture a compound for forming an outer part including the compound of following Chemical Formula 2: Lix2[Ni1−y2−z2−w2Coy2Mnz2Mw2]O2 Chemical Formula 2 (wherein, 0.9≦x2≦1+z2, 0≦y2≦0.33, 0≦z2≦0.5, 0≦w2≦0.1 and M is at least one metal selected from the group consisting of Mg, Zn, Ca, Sr, Cu, Zr, P, Fe, Al, Ga, In, Cr, Ge, and Sn); c) mixing the center part manufactured from step a) and the compound for forming the outer part manufactured from step b) to form the outer part on the center part surface; and d) heat-treating the compound obtained from step c) at 500-800° C. to form a bi-layer structure in which lithium is present at a continuous concentration-gradient from the contact interface of the center part and the outer part to the surface part of the outer part, and an anode active material for a lithium secondary battery manufactured thereby.
Transition metal hexacyanometallate-conductive polymer composite
A transition metal hexacyanometallate (TMHCM)-conductive polymer (CP) composite electrode is provided. The battery electrode is made up of a current collector and a transition metal hexacyanometallate-conductive polymer composite overlying the current collector. The transition metal hexacyanometallate-conductive polymer includes a AXM1YM2Z(CN)N.MH2O material, where A may be alkali metal ions, alkaline earth metal ions, ammonium ions, or combinations thereof, and M1 and M2 are transition metal ions. The transition metal hexacyanometallate-conductive polymer composite also includes a conductive polymer material. In one aspect, the conductive polymer material is polyaniline (PANI) or polypyrrole (Ppy). Also presented herein are methods for the fabrication of a TMHCM-CP composite.
A battery may include an electrode assembly including a first electrode and a second electrode, an electrode terminal, a current collecting member electrically connecting the electrode terminal and a first electrode uncoated region of the first electrode, a fixing member, and a case. The current collecting member may include a terminal connecting portion coupled to the electrode terminal and an electrode connecting portion extending from the terminal connecting portion. The electrode connecting portion may include an extending connecting plate and a current collecting piece extending from the connecting plate and being in contact with the first electrode uncoated region along sidewalls of the first electrode uncoated region. The fixing member may include a current collecting member coupling portion engaged with the current collecting member, the electrode connecting portion extending through the fixing member. The fixing member may be between the current collecting member and the case.
Fuel cell including cathode electrode using iron redox couple
Provided is a fuel cell including an anode electrode, a cathode electrode, and an electrolyte/ion exchange membrane between the anode electrode and the cathode electrode. The cathode electrode uses an iron redox couple as an oxidizer. The iron redox couple is regenerated by an oxidizing substance. The fuel cell does not need a noble metal catalyst, is thus economical in manufacturing costs, and has high power density, thereby improving energy conversion efficiency. Furthermore, the fuel cell is capable of decomposing an oxidizing substance, such as NOx, Cl2, Br2, or O3.
Method for preparing anode active material
Disclosed is a method including (a) mixing a precursor of a material for preparing at least one material selected from the group consisting of low crystalline carbon and amorphous carbon with a hydrophilic material, followed by purification to prepare a mixture for coating, (b) mixing the mixture for coating with a crystalline carbon-based material to prepare a core-shell precursor in which the mixture for coating is coated on a core including a crystalline carbon-based material, and (c) calcining the core-shell precursor to carbonize the material for preparing the at least one material selected from the group consisting of low crystalline carbon and amorphous carbon into the at least one material selected from the group consisting of low crystalline carbon and amorphous carbon.
Battery hold down device including grippable handle and spring arrangement
The present invention provides a device and a method for securely clamping and unclamping a battery in a battery receiving tray, wherein at least one hold down rod is securely connected to the battery receiving tray on one end and at the other end, is held against one or more horizontally disposed hold down clamps by tension provided by a tensioner operating against a tensioner retaining means at the other end of the hold down rod and the one or more hold down clamps.
Fuel cell system and desulfurization unit for the same
A desulfurization unit for a fuel cell system includes a first desulfurizer arranged in a temperature environment ranging from 50° C. to 200° C. and accommodating a desulfurizing agent including a porous material serving as a base material, the desulfurizing agent exerting a desulfurization effect in a normal temperature range, the first desulfurizer adsorbing a sulfur compound included in a source gas in the temperature environment ranging from 50° C. to 200° C. when the source gas having a low dew point is supplied through a source gas passage to the first desulfurizer and when the source gas having a high dew point is supplied through the source gas passage to the first desulfurizer.
Fuel cell device comprising a controller including an execution condition setting section
A fuel cell system includes a fuel cell, a control valve and a controller. The controller controls the control valve to periodically increase and decrease the anode gas pressure downstream of the control valve. The controller executes a shutdown/restart operation of the fuel cell by closing the control valve to stop the anode gas and shutting down power generation of the fuel cell upon receiving a shutdown command, and restarting feeding of the anode gas and restarting the power generation upon a prescribed operation restart condition being met. The controller estimates an anode gas concentration at a location where the anode gas concentration is locally lower within a power generation region of the fuel cell based on a control state of the anode gas when the shutdown command is issued. The controller sets the prescribed operation restart condition for executing the shutdown/restart operation based on the anode gas concentration.
Fuel cell stack
A fuel cell stack includes a plurality of unit cells stacked in a stacking direction substantially along a direction of gravity. Each of the plurality of unit cells includes a first metal separator, a second metal separator, and a membrane electrode assembly sandwiched between the first metal separator and the second metal. A reactant gas channel allows a reactant gas to flow along a surface of each of the first and second metal separators. A reactant gas inlet manifold and a reactant gas outlet manifold allow the reactant gas to flow the reactant gas inlet manifold and the reactant gas outlet manifold in the stacking direction. A bridge portion forms a connection channel to connect at least the reactant gas outlet manifold to the reactant gas channel. The bridge portion includes a guide portion to break a continuity of condensed water.
Fuel cell system for performing normal and abnormal shut-down processes
A fuel cell system of the present invention comprises a fuel cell (101); a first heat medium path through which a first heat medium for cooling the fuel cell (101) flows; a first flow control device (107) configured to flow the first heat medium in the first heat medium path; an abnormality detector configured to detect an abnormality; and a controller (110) configured to control the first flow control device (107) such that the fuel cell (101) after shut-down of power generation is cooled with a higher rate in an abnormal shut-down process performed after the abnormality detector detects the abnormality, than in a normal shut-down process.
Solid oxide fuel cell
Provided is an SOFC, including a fuel electrode (20), a thin-plate-like interconnector (30) provided on the fuel electrode and formed of a conductive ceramics material, and a conductive film (70) formed on a surface of the interconnector (30) opposite to the fuel electrode (20). The conductive film (70) is formed of an N-type semiconductor (e.g., LaNiO3). The N-type semiconductor generally has the property of exhibiting a smaller conductivity (a current hardly flows) at higher temperature. Therefore, a portion with a higher current density (thus, a portion with higher temperature) in the conductive film (70) in the vicinity of the interconnector (30) has a smaller conductivity (a current hardly flows). By virtue of this action, even though a “fluctuation in current density of a current flowing through the interconnector (30) and an area in the vicinity thereof” occurs for some reasons, the fluctuation can be suppressed.
Formed plate assembly for PEM fuel cell
A bipolar plate assembly for a fuel cell is provided. The bipolar plate assembly includes a cathode plate disposed adjacent an anode plate, the cathode and anode plates formed having a first thickness of a low contact resistance, high corrosion resistance material by a deposition process. The first and second unipolar plates are formed on a removable substrate, and a first perimeter of the first unipolar plate is welded to a second perimeter of the second unipolar plate to form a hermetically sealed coolant flow path. A method for forming the bipolar plate assembly is also described.
Continuous prismatic cell stacking system and method
A continuous prismatic cell stacking system and method are disclosed. The continuous prismatic cell stacking system, comprises: a frame; a conveyer belt; a plurality of air suction pans; at least three units for distributing separator including separator spool, positioning sensor of separator layer, upper roller of separator layer, lower roller of separator layer and cutter of separator layer; at least one unit for distributing cathode including cathode spool, positioning sensor of cathode layer, upper roller of cathode layer, lower roller of cathode layer, and cutter of cathode layer; and at least one unit for distributing anode including anode spool, positioning sensor of anode layer, upper roller of anode layer, lower roller of anode layer, and cutter of anode layer.
Organic light emitting diode display and method for manufacturing the same
An organic light emitting diode display includes a substrate, first electrodes patterned on the substrate, pixel defining layers on the substrate to separate the first electrodes corresponding to pixel units, light emitting layers on the first electrodes and separated corresponding to the pixel units, and a second electrode on the light emitting layers, wherein the pixel defining layers have pores.
Organic light-emitting display device
An organic light-emitting display device, having a first substrate, a second substrate facing the first substrate, a plurality of pixels disposed between the first and second substrates comprising a first electrode, a second electrode, and an organic light-emitting layer disposed between the first and second electrodes, for suppressing external light reflection and reducing pixel blurring by disposing a scattering structure in a direction a light is extracted at a distance equal to or below an adjacent pixel pitch.
Organic light-emitting diode and method for preparing the same
An organic light-emitting diode including a film having a thermal evaporation material and metal particles between a first electrode and a substrate and/or on a second electrode.
Organic electroluminescent display module
An organic electroluminescent display module includes: an organic electroluminescent display panel including a front surface, a side surface and a rear surface, the front surface displaying images; and a bottom frame surrounding the side and rear surfaces partially, the bottom frame including a metallic material.
Light-emitting element, light-emitting device, electronic device, and lighting device
Provided is a light-emitting element having a light-emitting layer which contains at least a host material and a plurality of guest materials, where the host material has a lower T1 level than that of at least one of the plurality of guest materials. The emission of the one of the plurality of guest materials exhibits a multicomponent decay curve, and the lifetime thereof is less than or equal to 15 μsec, preferably less than or equal to 10 μsec, more preferably less than or equal to 5 μsec, where the lifetime is defined as a time for the emission to decrease in intensity to 1/100 of its initial intensity.
Complex compounds having a ligand containing an N donor and a P donor and the use thereof in the opto-electronic field
The invention describes electronic devices comprising a metal complex compound having at least one ligand containing an N donor and a P donor having the formula (I), in which the carbons C1 and C2 are part of an aromatic or non-aromatic ring system F1, P and N are phosphorus and nitrogen, where the nitrogen is in sp2-hybridized form, the radicals R3 and R4 are, independently of one another, hydrogen or an alkyl, cycloalkyl, alkenyl, cycloalkenyl, alkynyl, cycloalkynyl, alkylcycloalkyl, heteroalkyl, heterocycloalkyl, heteroalkylcycloalkyl, aryl, heteroaryl, aralkyl or heteroaralkyl radical having up to 40 C atoms, and R1 and R2 are, independently of one another, an atom or radical from the group comprising hydrogen, halogen, R, RO—, RS—, RCO—, RCOO—, RNH—, R2N—, RCONR— and —Si(R)X(OR)3-X, where R=an alkyl, cycloalkyl, alkenyl, cycloalkenyl, alkynyl, cycloalkynyl, alkylcycloalkyl, heteroalkyl, heterocycloalkyl, heteroalkylcycloalkyl, aryl, heteroaryl, aralkyl or heteroaralkyl radical having up to 40 C atoms and X=1, 2 or 3. The invention furthermore describes a process for the production of an electronic device of this type and processes for the generation of light or blue emission using a metal complex compound of this type.
Platinum (II) di (2-pyrazolyl) benzene chloride analogs and uses
Synthesis of platinum(II) di(2-pyrazolyl)benzene chloride and analogs includes forming a 1,3-di-substituted benzene including two aromatic five-membered heterocycles, and reacting the 1,3-di-substituted benzene with an acidic platinum-containing solution to form a luminescent platinum(II) complex. The luminescent platinum(II) complex is capable of emitting blue and white light and can be used as an emitter in a light emitting device.
Organic light emitting diode device
An organic light emitting diode device includes an anode and a cathode facing each other, and an emission layer interposed between the anode and cathode, the emission layer including a compound represented by the following Chemical Formula 1 and a compound represented by the following Chemical Formula 2:
Benzofluorene-based compounds and organic light-emitting diode including the same
Provided are benzofluorene-based compounds according to the following Formula 1 and an organic light-emitting diode including the same:
Method for dispersing carbon nanotubes using chondroitin sulfate cation salt
The present invention relates to a method for dispersing carbon nanotubes. The method may include contacting the carbon nanotubes with a solution containing chondroitin sulfate cation salt of formula (I) wherein R1 is MSO3 and R2 is H, or R1 is H and R2 is MSO3; M is an alkaline metal, or an alkaline earth metal further bound to a monovalent counter-anion; n is at least 20.
Curable polymeric materials and related electronic devices
Disclosed are curable linear polymers that can be used as active and/or passive organic materials in various electronic, optical, and optoelectronic devices. In some embodiments, the device can include an organic semiconductor layer and a dielectric layer prepared from such curable linear polymers. In some embodiments, the device can include a passivation layer prepared from the linear polymers described herein. The present linear polymers can be solution-processed, then cured thermally (particularly, at relatively low temperatures) and/or photochemically into various thin film materials with desirable properties.
Process for producing an actuator having a stack of alternating intermediate electrode layers and piezoelectric material layers
A process for producing an actuator configured to generate powerful ultrasonic waves and that includes a stack of alternating intermediate electrode layers and piezoelectric material layers. The method includes: forming an initial stack of alternating intermediate electrode layers and piezoelectric material layers, each end of the stack being a piezoelectric material layer or an intermediate electrode layer; firmly attaching adjacent layers to one another; cutting the initial stack into elementary blocks; and connecting the intermediate electrode layers together, in each elementary block.
Piezoelectric film and usage thereof
The present invention provides a piezoelectric film having a higher polarization-disappearance temperature Td and the usage thereof. The piezoelectric film of the present invention comprising an interface layer of (Nax1, Biy1)TiO0.5x1+1.5y1+2-BaTiO3 layer having a (001) orientation only and a piezoelectric layer of a (Nax2, Biy2)TiO0.5x2+1.5y2+2-BaTiO3 layer having a (001) orientation only, where x1 is 0.28-0.43, y1 is 0.49-0.60, x2 is 0.30-0.46, and y2 is 0.51-0.63. The piezoelectric layer is formed on the interface layer. The interface layer contains nickel. The interface layer has a Ni/Ti molar ratio of not less than 0.02.
Variable resistance non-volatile memory device and manufacturing method thereof
In a method of manufacturing a variable resistance non-volatile memory device including non-volatile memory element layers stacked together by repeating the step (S100, S200 . . . ) of forming a non-volatile memory element layer plural times, when a thickness of the second metal oxide layer included in each of the non-volatile memory element layers just after the step of forming the corresponding non-volatile memory element layer is completed is a thickness in formation, and when an area of a portion of the second metal oxide layer included in each of the non-volatile memory element layers and a portion of the first metal oxide layer included in the corresponding non-volatile memory element layer, which portions are in contact with each other, just after the step of forming the corresponding non-volatile memory element layer is completed is an area in formation, at least one of the thickness in formation and the area in formation is made different among the steps of forming the non-volatile memory element layers, to cause all of the non-volatile memory elements in a state in which formation of an uppermost non-volatile memory element layer is completed, to have an equal initial resistance.
Nonvolative memory with filament
An embodiment, relates to a phase changeable memory cell. The phase changeable memory cell is formed with an ultra small contact area formed by filament conductive path. This contact area between a heating electrode and phase changeable material layer is determined by the forming of filament path, which is conductive and much smaller in cross-sectional area than the minimum area that can be achieved by lithography. This leads to high heating efficiency and ultra-low programming current. As the disclosed structure has no requirement on endurance for the formed filament and use phase changeable material rather than filament-forming material to provide high on/off resistance ratio, drawbacks of filament-forming material on low endurance and low sensing margin are avoided in the proposed cell structure. Therefore, by using ReRAM-related filament-forming materials to get sub-litho-dimension conductive path as heating electrode and using high on/off ratio phase changeable material as the storage media, it is possible to reduce the power consumption of phase changeable memory dramatically without the drawbacks of filament-forming materials that are shown in ReRAM.
Confined cell structures and methods of forming confined cell structures
Techniques for reducing damage in memory cells are provided. Memory cell structures are typically formed using dry etch and/or planarization processes which damage certain regions of the memory cell structure. In one or more embodiments, certain regions of the cell structure may be sensitive to damage. For example, the free magnetic region in magnetic memory cell structures may be susceptible to demagnetization. Such regions may be substantially confined by barrier materials during the formation of the memory cell structure, such that the edges of such regions are protected from damaging processes. Furthermore, in some embodiments, a memory cell structure is formed and confined within a recess in dielectric material.
PCRAM with current flowing laterally relative to axis defined by electrodes
An improved phase change memory device has a phase change structure including a thin part between a contact surface of an electrode and a dielectric structure. For example, the thin part has a maximum thickness that is smaller than a maximum width of the contact surface of the electrode. In another example, the phase change structure surrounds the dielectric structure. Several variations improve the contact between the phase change structure and an electrode.
Curved ultrasonic HIFU transducer with compliant electrical connections
A curved high intensity focused ultrasound (HIFU) transducer comprising a curved piezoelectric array having opposite concave front and convex back surfaces, and a plurality of acoustic transmission areas, a plurality of electrodes located on the convex back surface of the curved piezoelectric array for applying electrical transmit signals to the acoustic transmission areas, and a printed circuit board spaced apart from and in opposition to the back surface of the curved piezoelectric array which couples electrical signals to the acoustic transmission areas, the printed circuit board comprising a plurality of metal contacts which are compliant in the presence of thermal expansion and contraction and which span the space between the printed circuit board and the curved piezoelectric array and are electrically coupled to electrodes of the acoustic transmission areas of the curved piezoelectric array.
Methods of fabricating semiconductor structures using thermal spray processes, and semiconductor structures fabricated using such methods
Methods for fabricating a semiconductor substrate include forming a first substrate layer over a surface of a first semiconductor layer, and thermally spraying a second substrate layer on a side of the first substrate layer opposite the first semiconductor layer. At least one additional semiconductor layer is epitaxially grown over the first semiconductor layer on a side thereof opposite the first substrate layer. At least one of the first substrate layer and the second substrate layer may be formulated to exhibit a Coefficient of Thermal Expansion (CTE) closely matching a CTE of at least one of the first semiconductor layer and the at least one additional semiconductor layer. Semiconductor structures are fabricated using such methods.
Light emitting element unit and method for manufacturing the same, light emitting element package and illuminating device
A light emitting element unit according to the present invention includes a semiconductor light emitting element that has a surface, a back surface, and a side surface, where the surface or the back surface is a light extracting surface from which light generated inside is emitted, a submount which has a bottom wall and a side wall, has a recess portion defined by the bottom wall and the side wall, and supports the semiconductor light emitting element by the bottom wall in a position in which the light extracting surface is directed upward at the recess portion, and has an inclined surface on the side wall, inclined at a predetermined angle with respect to the bottom wall so as to face the side surface of the semiconductor light emitting element, and a light reflecting film formed on the inclined surface of the submount.
Semiconductor nanoparticle-based materials for use in light emitting diodes, optoelectronic displays and the like
A formulation incorporates nanoparticles, particularly quantum dot (QD) nanoparticles, into an optically clear medium (resin) to be used as a phosphor material in lighting and display applications, and as a down converting phosphor material in LEDs (light emitting diodes). The resin is compatible with QDs to allow high performance and stability of QD-based LEDs, lighting and display applications.
Encapsulating layer-covered semiconductor element, producing method thereof, and semiconductor device
A method for producing an encapsulating layer-covered semiconductor element includes the steps of preparing a support sheet including a hard support board; disposing a semiconductor element at one side in a thickness direction of the support sheet; disposing an encapsulating layer formed from an encapsulating resin composition containing a curable resin at the one side in the thickness direction of the support sheet so as to cover the semiconductor element; curing the encapsulating layer to encapsulate the semiconductor element by the encapsulating layer that is flexible; cutting the encapsulating layer that is flexible corresponding to the semiconductor element to produce an encapsulating layer-covered semiconductor element; and peeling the encapsulating layer-covered semiconductor element from the support sheet.
Light emitting device
According to one embodiment, a light emitting device includes a base, a light emitting element, and a fluorescent body-containing layer. The light emitting element is installed on the base, has an upper surface and a lower surface, and includes a light emitting unit on the upper surface. The fluorescent body-containing layer is provided on the light emitting element and has a lower surface having an area smaller than an area of the light emitting unit and an upper surface having an area larger than an area of the light emitting unit.
Transparent LED lamp for bidirectional lighting
A flexible light sheet includes a thin substrate that allows light to pass through it, a transparent first conductor layer overlying the substrate, an array of vertical light emitting diodes (VLEDs) printed as an ink over the first conductor layer, each of the VLEDs having a bottom electrode electrically contacting the first conductor layer, a dielectric material between the VLEDs overlying the first conductor layer, and a transparent second conductor layer overlying the VLEDs and dielectric layer, each of the VLEDs having a top electrode electrically contacting the transparent second conductor layer. Each individual VLED may emit light bidirectionally. The VLEDs are illuminated by a voltage differential between the first conductor layer and the second conductor layer such that bidirectional light passes through the first conductor layer and the second conductor layer. Phosphor layers may be deposited on both sides to create white light using blue VLEDs.
Light emitting diode assembly and method for fabricating the same
The present invention is directed to a light emitting diode (LED) assembly and a method for fabricating the same. According to the present invention, there is provided an LED assembly comprising an LED comprising at least an N-type semiconductor layer and a P-type semiconductor layer; and bumps provided on the LED and electrically connected to the semiconductor layers, wherein the bump comprises a first region made of a gold (Au) compound including tin (Sn) and a second region made of gold.
Semiconductor light emitting device
According to one embodiment, a semiconductor light emitting device includes a stacked structure body, a first electrode, a second electrode, and a dielectric body part. The stacked structure body includes a first semiconductor layer, having a first portion and a second portion juxtaposed with the first portion, a light emitting layer provided on the second portion, a second semiconductor layer provided on the light emitting layer. The first electrode includes a contact part provided on the first portion and contacting the first layer. The second electrode includes a first part provided on the second semiconductor layer and contacting the second layer, and a second part electrically connected with the first part and including a portion overlapping with the contact part when viewed from the first layer toward the second layer. The dielectric body part is provided between the contact part and the second part.
Nanostructured thermolectric elements and methods of making the same
Nanostructured thermoelectric elements are made from planar uniwafer processing methods. The method includes producing either n-type or p-type thermoelectric uniwafer structure bearing nanostructure material embedded in a low thermal conductivity fill material. The method further includes partially cutting the uniwafer structure to form a plurality of chip structures separated by trenches. The method includes filling the trenches with the fill material to surround the nanostructure material within each chip structure. The method further includes additionally planar processing to form both frontend and backend conductive contact layers respectively coupled to frontend regions and backend regions of the chip structures. Additionally, the modified thermoelectric uniwafer structure is cut to turn the chip structures to bulk-sized nanostructured thermoelectric legs, each bulk-sized nanostructured thermoelectric leg being wrapped around by the fill material and ready for assembling thermoelectric modules.
Semiconductor optical emitting device with metallized sidewalls
A semiconductor optical emitting device comprises an at least partially transparent substrate, an active semiconductor structure, a dielectric layer and a metal layer. The substrate comprises a first surface, a second surface and at least one sidewall. The active semiconductor structure comprises a first surface, a second surface and at least one sidewall, the first surface of the active semiconductor structure facing the second surface of the substrate. The dielectric layer surrounds at least a portion of the at least one sidewall of the active semiconductor structure. The metal layer surrounds at least a portion of the dielectric layer. The at least one sidewall of the active semiconductor structure is tapered and a first portion of the at least one sidewall of the active semiconductor structure has a different tapering than a second portion of the at least one sidewall of the active semiconductor structure.
Solar battery cell, solar battery module, and joining method of lead wire of solar battery cell
A solar battery cell includes: a light-receiving-surface bus electrode; a light receiving surface of a semiconductor substrate; and a long lead wire for extracting electricity. The light-receiving-surface bus electrode extends in a predetermined direction on the light receiving surface of the semiconductor substrate and the long lead wire is overlapped on and joined to the light-receiving-surface bus electrode. The light-receiving-surface bus electrode and the lead wire are respectively provided with mutually engaging, without a gap, convex portions and concave portions on surfaces thereof facing each other to regulate misalignment in a width direction between the light-receiving-surface bus electrode and the lead wire.