Deflecting device for electromagnetic radiation
An apparatus includes active layers, and a first high resistive layer disposed between the active layers. The apparatus further includes second and third high resistive layers disposed on respective surfaces of the active layers, the second and third high resistive layers including first and second strip conductors, respectively, the first strip conductors being connected at an end by a first connecting conductor, the second strip conductors being connected at an end by a second connecting conductor, and the first connecting conductor being disposed perpendicularly to the second connecting conductor. The apparatus further includes first contact pads disposed on respective ends of the first connecting conductor, and second contact pads disposed on respective ends of the second connecting conductor. The apparatus further includes matching layers disposed on respective surfaces of the second and third high resistive layers.
Electronic device for vehicle
An electronic device for a vehicle includes: a digital substrate having a first semiconductor package with a CPU, a second semiconductor package with a volatile memory readable and writable from the CPU, a third semiconductor package with a flash memory storing a start-up program of the CPU, and a fourth semiconductor package with a power supply management integrated circuit; and a fan that takes in air along the surface of the digital substrate on which the first to fourth semiconductor packages are mounted. The third semiconductor package is disposed to distance from the first semiconductor package by at least a first predetermined distance and to distance from the fourth semiconductor package by at least a second predetermined distance exceeding the first predetermined distance, and is disposed in a passage of the air taken in by the fan.
A rack-mounted electronic device, which is mounted in a rack, includes a housing; a first aperture formed on a first surface of the housing; a first connector configured to protrude from the first aperture; a second aperture formed on a second surface which faces the first surface in the housing; and a second connector arranged in the second aperture.
Floating daughter card system
A blade includes both a motherboard and daughter card to allow the combined functionality to be incorporated into a single blade for size reduction. Standoffs couple the daughter card to the motherboard. Cantilever portions of the motherboard and daughter card exist between the standoffs and terminals of the motherboard and daughter card. The cantilever portions bend to accommodate any misalignment between the terminals of the motherboard and the daughter card and mating connectors of a bulkhead or printed circuit board backplane.
Cover opening structure
A cover opening structure including a case, a cover, a pushing button, a pushing unit and an axle is provided. The cover has a first portion having a first side, a second portion having a second side connected to the case, and a connecting portion connected therebetween, wherein the connecting portion is softer than the first and second portions. The pushing button disposed on the case has a body and an inserting portion extended from the body. The pushing unit has a first end, a second end and a leaning portion connected therebetween and is inserted between the body and the first end. The axle is disposed at the case while the leaning portion leans against the axle. The pushing unit rotates about the axle while the first end moves downward and the second end moves upward to push up the first portion when the pushing button is moved.
Enclosure with inner tamper-respondent sensor(s)
Tamper-respondent assemblies and methods of fabrication are provided which include an electronic enclosure and a tamper-respondent electronic circuit structure. The electronic enclosure encloses, at least in part, at least one electronic component to be protected, and includes an inner main surface, and an inner sidewall surface which has at least one inner-sidewall corner. The tamper-respondent electronic circuit structure includes a tamper-respondent sensor covering, at least in part, the inner sidewall surface of the electronic enclosure. The tamper-respondent sensor includes multiple slots provided therein. The multiple slots facilitate disposing the tamper-respondent sensor to cover the at least one inner-sidewall corner of the inner sidewall surface by allowing for one or more regions of overlap of the tamper-respondent sensor at the at least one inner-sidewall corner of the electronic enclosure.
A display device comprises: a display panel; a rear surface panel coupled to the display panel by means of a first adhesive tape partially coated onto a rear surface of the display panel; a rigid bar which is arranged between the display panel and the rear surface panel and coupled to the rear surface of the display panel by means of a second adhesive tape, such that it is possible to provide a display device having sufficient rigidity while minimizing increase in thickness and reducing the weight of a structure for supporting the rear surface of the display panel by simultaneously using the rear surface panel and the rigid bar on the rear surface.
Device housing with fastener nesting provision
An electrical unit includes a mounting portion, which can define, in part, an interior region. The mounting portion includes a plurality of item clamping elements. The elements are displaced from one another to releasably support an item within the interior region. Items can be selected from a class that includes at least fasteners, wall anchors, and cable ties. First and second mounting holes are provided, wherein a retainer or wall anchor can be removed from a respective clamping element and used to attach the unit to a selected mounting surface.
Flexible display panel and fabricating method thereof, and image display terminal unit
A flexible display panel, and particularly, to a flexible display panel which is bendable, not an existing glass substrate, a fabrication method thereof, and an image display terminal unit using a flexible display panel are provided.In the case of the flexible display panel, the fabrication method, and the image display terminal unit, the flexible display panel is implemented with a plastic substrate, rather than the conventional glass substrate, and a portion of the non-active area of the display panel is cut to form a cutout portion to insert modules of the image display terminal unit into the cutout portion to thus reduce a receiving space of the lower housing, thereby minimizing a width of the bezel region.
The embodiments of the present invention relate to a display panel comprising an array substrate, wherein the array substrate comprises: gate lines connected to a gate driving module and data lines connected to a data driving module; gate line redundancy lines, corresponding to the gate lines one by one and receiving the same signal, and each of which is connected with the gate driving module at one end and with a corresponding gate line at the other end through a first control switch; and data line redundancy lines, corresponding to the data lines one by one and receiving the same signal, and each of which is connected with the data driving module at one end and with a corresponding data line at the other end through a second control switch.
A circuit board for a communication connector, comprising a first signal input terminal, a first signal output terminal, a second signal input terminal, a second signal output terminal, a first signal wire, a second signal wire, a capacitive structure and a capacitive cylinder. The first signal input terminal and the first signal output terminal are coupled by the first signal wire; the second signal input terminal and the second signal output terminal are coupled by the second signal wire; the capacitive structure is coupled with the first signal wire; the capacitive cylinder is coupled with second signal wire. The capacitive structure and the capacitive cylinder are capacitive coupled between the first signal wire and the second signal wire.
In a multilayer substrate, a quasi-coaxial line is formed as a structure for transmitting a high-frequency signal generated by a mounted high-frequency device from an uppermost layer to a lowermost layer to externally output and for transmitting an externally input high-frequency signal from the lowermost layer to the high-frequency device. The quasi-coaxial line has: a central conductor being a vertical through hole via that connects between a metal pattern formed on an upper surface of the uppermost layer and a metal pattern formed on a lower surface of the lowermost layer; and outer conductors being a plurality of interlayer vias that are circularly arranged around the central conductor and connect between two or more layers. Whole or a part of the vertical through hole via is substituted by a capacitor structure formed of conductor pads facing each other without any via.
Power semiconductor module comprising module-internal load and auxiliary connection devices of low-inductance configuration
A power semiconductor module comprising internal load and auxiliary connection devices embodied as wire bonding connections. A substrate has a plurality of load and auxiliary potential areas, wherein a power switch is arranged on a first load potential area, said power switch being embodied as a plurality of controllable power subswitches arranged in series. The power subswitches have a load bonding connection consisting of a plurality of load bonding wires to a second load potential area, wherein a first bonding base is arranged on the second load potential area and an adjacent second bonding base of the respective load bonding wire is arranged on a contact area of the power subswitch.
Electronic device package, electronic device structure and method of fabricating electronic device package
According to embodiments of the disclosure, an electronic device package may include a wire layer and a rigid element. The wire layer includes a first surface and a second surface opposite to each other, and the second surface of the wire layer has at least one coarse structure. A portion of the second surface having the coarse structure has a greater roughness than another portion of the second surface. The rigid element is disposed on the first surface of the wire layer, wherein a stiffness of the rigid element is greater than a stiffness of the wire layer and a projection area of the coarse structure on the first surface of the wire layer overlaps an edge of the rigid element.
Interposer and semiconductor device including the same
There is provided an interposer for cooling an electronic component. The interposer includes: a substrate body having a hollow cooling channel therein, wherein a cooling medium flows through the cooling channel, the cooling channel including: a plurality of main cooling channels extending in a certain direction and separated from each other; an inflow channel which is communicated with one end of the respective main cooling channels; and an outflow channel which is communicated with the other end of the respective main cooling channels, and a plurality of through electrode groups each comprising a plurality of through electrodes arranged in a line. Each of the though electrodes is formed through the substrate body to reach the first and second surfaces of the substrate body. The respective through electrode groups are partitioned by at least corresponding one of the main cooling channels.
Plasma thruster and method for generating a plasma propulsion thrust
The invention, which relates to a miniaturizable plasma thruster, consists of: —igniting the plasma by microhollow cathode discharge close to the outlet and inside the means for injecting the propellant gas, said injection means being magnetic and comprising a tip at the downstream end thereof; —bringing the electrons of the magnetized plasma into gyromagnetic rotation, at the outlet end of said injection means; —sustaining the plasma by means of Electron Cyclotron Resonance (ECR), said injection means being metal and being used as an antenna for electromagnetic (EM) emission, the volume of ECR plasma at the outlet of said injection means being used as a resonant cavity of the EM wave; —accelerating the plasma in a magnetic nozzle by diamagnetic force, the ejected plasma being electrically neutral.
Negative ion-based neutral beam injector
A negative ion-based neutral beam injector comprising a negative ion source, accelerator and neutralizer to produce about a 5 MW neutral beam with energy of about 0.50 to 1.0 MeV. The ions produced by the ion source are pre-accelerated before injection into a high energy accelerator by an electrostatic multi-aperture grid pre-accelerator, which is used to extract ion beams from the plasma and accelerate to some fraction of the required beam energy. The beam from the ion source passes through a pair of deflecting magnets, which enable the beam to shift off axis before entering the high energy accelerator. After acceleration to full energy, the beam enters the neutralizer where it is partially converted into a neutral beam. The remaining ion species are separated by a magnet and directed into electrostatic energy converters. The neutral beam passes through a gate valve and enters a plasma chamber.
Plasma generator systems and methods of forming plasma
Systems and methods of forming plasma are provided. In an embodiment, a plasma generator system is provided including a container, a single coil disposed around the container, the single coil being a single member and having a first end, a second end, a first winding, and a second winding, wherein the first winding extends from the first end, and the second winding is integrally formed as part of the first winding and extends to the second end, an energy source electrically coupled directly to the first end of the single member, and a capacitor electrically coupled directly to the second end of the single member.
Reduction of periodic oscillations in a source plasma chamber
In laser-produced plasma (LPP) extreme ultraviolet (EUV) systems, pressure waves and other impulsive disturbances originating from plasma bubble emitting EUV light are created which affect flight of incoming droplets. These disturbances slow the migration of subsequent droplets to the plasma bubble. Because the incoming droplets are slowed, the laser beam does not directly hit the droplet at a primary focus point. This causes the resulting level of EUV light generated to be lower than expected and is manifested as a periodic oscillation in the LPP EUV system. An iterative learning controller (ILC) is used to reduce the periodic oscillations when operating the LPP EUV system in a burst mode or a continuous mode. The ILC, on the rising edge of each burst, uses an error signal collected during a completed burst and the input control signal from the completed burst to update the input control signal for a next burst.
Drum assembly having internal lightning discharge capability
A drum assembly includes a drum, a stimulus processor assembly and a Tesla coil. The stimulus processor assembly receives a stimulus, generates an input signal, and converts the input signal to an output signal. The Tesla coil receives the output signal from the stimulus processor assembly. The Tesla coil emits an electrical discharge in response to the output signal. The electrical discharge occurs at least partially within the drum interior. The stimulus processor assembly uses a conversion algorithm to convert the input signal to an output signal. The Tesla coil can be positioned inside or outside of a drum interior of the drum. A discharge router can send the electrical discharge from the Tesla coil to the drum interior. The electrical discharge can have an intensity that is correlative to the decibel level of the stimulus. The stimulus can be generated by the drum or by a source remote from the drum.
LED-based lighting control network communication
An LED based illumination device includes a receiver and a transmitter for communications adhering to a lighting control communications protocol and a high speed communications protocol. The LED based illumination device may be part of a lighting control network, wherein the data transmission rate of the high speed communications protocol is more than twice that of the lighting control communications protocol. The lighting control network may be coupled to a digital communications gateway, including a digital communications interface configured to be coupled to a network operating in accordance with an internet protocol and a lighting control network interface coupled to the lighting control network. A processor determines a summary status value of the LED based illumination device based on information stored in memory of the digital communications gateway. The digital communications gateway may periodically transmit the time of day to the LED based illumination device over the lighting control network.
Light emitting device system comprising a remote control signal receiver and driver
The invention relates to a light emitting device system (112) comprising power supply terminals (114) and a remote control signal receiver (118), the power supply terminals being adapted for receiving electrical power from an external driver (100), the remote control signal receiver (118) being adapted for receiving a remote control signal, wherein the light emitting device system (112) is further adapted for providing the received remote control signal as remote control signal information exclusively via the power supply terminals (114) and/or via wireless transmission to the driver (100).
Managing SSL fixtures over PLC networks
Managing solid-state luminary (SSL) fixtures over power line carrier (PLC) networks is described herein. Devices provided in this description include SSL arrays, and converter circuitry coupled to drive the SSL arrays. More specifically, the converter circuitry is adapted to convert input voltage received from a power distribution network into a level suitable for driving the SSL arrays. The devices also include (PLC) modems for coupling to PLC networks, and coupled to the converter circuitry. In particular, the PLC modems interface the converter circuitry to the PLC networks.
Systems and methods for managing lighting settings in a lighting system
Embodiments are provided for systems and methods of managing a lighting system. According to certain aspects, the lighting system includes a low voltage controller (LVC) connected to multiple switches and to multiple drivers. Based on signals received from the switches, the LVC may determine a desired lighting setting as well as an adjustment setting of the lighting setting. The LVC may apply an appropriate signal to a driver to cause the driver to power a corresponding portion of luminaires. The LVC may include a memory configured to store adjustment settings so that the LVC may revert back to desired lighting and adjustment settings.
LED display apparatus
An LED display apparatus includes a first LED display including a first LED, a second LED display including a second LED, and a luminance corrector. The luminance corrector corrects a luminance of the first LED in accordance with a first cumulative lighting period of the first LED and with both luminance transitions and a second cumulative lighting period of the second LED.
Lighting system and a method of controlling a lighting system
A lighting system 100 and a method of controlling a lighting system are provided. The lighting system comprises a lighting arrangement 106 with a first light emitter 108, a second light emitter 114 and a driving circuitry 104 and comprises a controller 102 providing a control signal 103 to the driving circuitry. The first and second light emitters emit different colors or light L1, L2. The controller is configured to generate the control signal such that a required minimum amount of light is received at a relative position P with respect to the lighting arrangement and that the amount of power used by the lighting arrangement is minimized when the lighting arrangement emits light in accordance with the generated control signal. In the generation of the control signal efficiency ratios R1, R2 for the different light emitters are taken in to account.
Method and system for illumination management
A luminaire can comprise a system that automatically adjusts light output from the luminaire to control light level in an illuminated area. The system can increase light output if the light level in the area falls below a target light level or decrease light output if the light level in the area rises above the target. For example, when the area is illuminated by a combination of sunlight and luminaire light, the light level can be maintained at the target level by gradually decreasing light output as the sunlight contribution increases in the morning and by gradually increasing light output as the sunlight contribution decreases in the evening. The system adjustments can take into consideration whether the light level is offset from the target due to a change in the target or a short-term fluctuation that may be due to a cloud temporarily blocking the sun.
Kind of LED phase cut dimming power supply
The invention discloses and provides a kind of LED phase cut dimming power supply, which comprises AC power supply, phase cut dimmer, LED phase cut dimming power supply and, LED lamp or LED luminaire. The LED phase cut dimming power supply is composed of anti-interference circuit, rectifier circuit I, switching power circuit, rectifier circuit II, dimmer holding current circuit, decompression filter circuit, DC signal amplification circuit, signal conversion circuit, photoelectric coupler, pulse signal amplification circuit, MOS tube, power supply circuit VCC and power supply circuit VDD, which correspond to each and connect with each other adaptively. The input terminal of the anti-interference circuit connects to the output terminal of the phase cut dimmer, and MOS tube or DC TO DC circuit connects to LED lamp or LED luminaire. The invention can be widely used in the field of LED phase cut dimming power supply.
Arrangement and method for operating an arrangement
A method is set up to operate an arrangement that has N radiation-emitting semiconductor chips arranged in an electric series circuit. The arrangement includes multiple switching elements, wherein to each of the semiconductor chips one of the switching elements is connected electrically in parallel. The arrangement includes a controller for the mutually independent activation of the switching elements. The arrangement includes a constant current circuit for energizing the series circuit. When switching off, the respective semiconductor chip associated with a switching element is bridged electrically by the switching element. A protective module of the arrangement is set up to reduce or to prevent current peaks when one or more of the semiconductor chips is/are switched off.
Temperature measuring apparatus and microwave oven having the same
A microwave oven includes a tray rotatably installed inside a cooking compartment, a temperature measuring apparatus comprising a driving unit configured to generate a rotation force, and a sensing unit configured to measure the temperatures of a plurality of temperature measurement points by having a temperature measurement angle changed by the rotation force of the driving unit; and a control unit configured to control the temperature measuring apparatus to measure the plurality of temperature measurement points provided at the upper side of the tray according to a predetermined temperature measurement pattern that provides a different pattern for successive rotation periods of the tray.
Cover plate for a domestic appliance, said cover plate having at least one semi-transparent support plate, domestic appliance for preparing food and method for producing a cover plate for a domestic appliance
A cover plate for a domestic appliance includes an at least semi-transparent support plate having a bottom provided with at least one colored layer and at least one semi-transparent metal layer. The metal layer has at least one continuous cut-out section and the colored layer is arranged in the area of the cut-out section.
Access point and method of controlling channel change in the same
An access point and a method of controlling channel change in the access point. The access point includes: a channel change event detector for checking whether an event of requesting to change a channel used for transmitting and receiving a packet between the access point and a counterpart access point occurs; and a channel change control unit for performing channel change while maintaining channel-synchronization with the counterpart access point constituting a Wireless Distribution System (WDS) link when the channel change event occurs. According to the access point and method, a WDS link is normally maintained even when the channel of an access point is changed.
Dynamic point to point mobile network including destination device aspects system and method
A computationally implemented system and method that is designed to, but is not limited to: electronically receiving one or more at least partially mobile operating system operated intermediate electronic communication device relayed transmissions from one or more at least partially mobile operating system operated intermediate electronic communication devices activated from standby mode to be one or more communication network relays for use by one or more origination electronic communication devices to communicate at least in part with one or more destination electronic communication devices. In addition to the foregoing, other method aspects are described in the claims, drawings, and text forming a part of the present disclosure.
Schemes for providing wireless network
Technologies are generally described for providing a wireless local area network. In some examples, a method performed under control of a first device may include connecting to an access point that is configured to provide a wireless local area network, transmitting, to a second device, a request of connecting to the first device, receiving, from the second device, a response of connecting to the first device, configuring an ad-hoc network group including the first device and the second device based, at least in part, on a network load of the first device and a network load of the second device, and providing a wireless local area network to the second device included in the ad-hoc network group.
Apparatus and method for seamless commissioning of wireless devices
An application is provided on a smart wireless device for commissioning a target device disposed in proximity to the smart wireless device onto a wireless local area network (WLAN). The application is configured to display a user interface, format and communicate one or more WLAN configuration packets that convey WLAN configuration data associated with the WLAN according to a predetermined format, and receive information indicating that the target device has successfully entered the WLAN. The application is also configured to after the smart wireless device enters the WLAN, communicate device configuration data to the target device. The device configuration data include smart wireless device information that identifies the smart wireless device for facilitating communication between the smart wireless device and the target device over the WLAN.
Detection and reporting of keepalive messages for optimization of a keepalive traffic in a mobile network
Detection of network transactions or keepalives for maintaining long lived connections are disclosed. A keepalive detector can detect keepalive traffic based on keepalive parameters determined from an analysis of socket level network communication log data that record data transfer events including data sent from mobile applications or clients on a mobile device and data received by the mobile applications or clients on the mobile device, timing characteristics, protocol types, etc. Various statistical analyses can be performed on the network communication data to detect keepalives, taking into account variability in intervals of the data transfer events and sizes of data sent and received on each event. The keepalive detector can also detect keepalives from stream data on a mobile device by analyzing socket level communication messages including timing characteristics and amount of data transferred to detect keepalives and report keepalives using a data structure.
Access class barring for device-to-device proximity service communications
Methods, systems, and devices are described for access class barring (ACB) operations for device-to-device (D2D proximity service communications. An ACB parameter may be defined and assigned to UEs that is associated with discovery or communication operations for normal and high priority user equipments (UEs). The UE may identify a resource for D2D proximity service communications and, when not barred, send a radio resource control (RRC) connection message requesting the available resource. An establishment cause may be defined and included in the RRC connection request message that corresponds to the ACB parameter.
Call processing method and access network element in mobile communications system
The present invention relates to a call processing method and an access network element in a mobile communications system. In a signaling exchange process for setting up a call leg, a call leg identifier that identifies a logical resource allocated by an access network element to the call leg is carried, thereby reducing signaling exchange caused by setup or release of a service link between access network elements in the prior art, saving signaling overhead in a call process, and enhancing call access capabilities of a mobile communications system effectively. In addition, after the service link between the access network elements is set up, service packets can be forwarded between the access network elements in a self-addressing manner.
Method and apparatus for providing machine initial access procedure for machine to machine communication
A method and apparatus are therefore provided that may enable the provision of M2M communication in a wireless network environment. In this regard, for example, relatively low power devices (specifically referencing low transmission power) such as sensors or other machines in an M2M system may be enabled to initiate communication with a network through a mobile terminal in a more reliable and robust manner. The machine may transmit a busy-signal to request a reservation of a machine access slot on a machine access control channel to reserve the slot before transmitting any machine information or data to reduce the likelihood of collisions with other machines. Once the machine has reserved the machine access slot, the machine may transmit identification information via randomly selected frequency division multiplexed or code division multiplexed resources to further reduce the likelihood of collisions with other machines. Thus, delays in establishing connections may be reduced or eliminated.
Method and apparatus for handling uplink grant in random access response
Methods and apparatuses for wireless communication are provided. In an aspect, an uplink grant is received which includes a resource block assignment. The resource block assignment with a length adjustment is interpreted based on an uplink bandwidth configuration. In another aspect, a length adjustment is determined for an uplink grant. The length adjustment is based on an uplink bandwidth configuration. A resource block assignment is encoded based on the length adjustment, and the uplink grant including the resource block assignment is transmitted.
ACK/NACK transmission for multi-carrier operation
Techniques for acknowledging data transmissions in a multi-carrier wireless communication network are disclosed. In some aspects, a user equipment (UE) receives a data transmission on at least one component carrier (CC) in a plurality of configured CCs. The UE determines acknowledgement/negative acknowledgement (ACK/NACK) information for the data transmission and determines an uplink channel for sending the ACK/NACK information. When the ACK/NACK information is sent on a PUCCH, the UE may perform power control based on which CCs in the plurality of configured CCs data is received. When the ACK/NACK information is sent on a PUSCH, the UE may determine a number of resource elements based on its CC configuration.
Communication method taking carrier type into consideration, and apparatus therefor
The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and apparatus for a terminal to receive a downlink signal in a wireless communication system. The method includes the steps of: receiving a downlink signal through a downlink period in a subframe including the downlink period, a gap period, and an uplink period; and demodulating the downlink signal, wherein the length of the downlink period is less than or equal to half of the subframe. When the downlink signal is received on a first type of carrier, the downlink signal is demodulated using a first cell-common reference signal. When the downlink signal is received on a second type of carrier, the downlink signal is demodulated using a terminal-specific reference signal.
Ultra reliable link design
Techniques are described for wireless communication. A first method includes measuring, by a first device, a condition of a wireless channel; and generating at least one channel side information feedback message based on the measured condition of the wireless channel. The at least one channel side information feedback message provides information on a relationship of a set of parameters, including a data rate parameter, an error probability parameter, and at least one of a deadline parameter or a transmission link parameter. A second method includes measuring, by a first device, interference on a wireless channel; identifying an interfering device for the wireless channel based on the measurement; and generating a channel side information feedback message based on the measured interference on the wireless channel. The channel side information feedback message indicates the interfering device for the wireless channel and a correlation of interference from the interfering device with time or frequency.
Semi-persistent secondary signaling channels
An example embodiment may involve defining an orthogonal frequency-division multiplexed (OFDM) wireless air interface that contains time-division multiplexed subframes. A primary signaling channel may be formed by modulation symbols that are statically allocated to fixed time positions of each subframe, and span contiguous subcarrier frequencies. A secondary signaling channel may be defined in the OFDM wireless air interface. The secondary signaling channel may be formed by modulation symbols that are dynamically allocated to time positions of one or more subcarrier frequencies, and span at least two consecutive subframes of the OFDM wireless air interface. A signaling message may be transmitted, on the primary signaling channel, to one or more WCDs. The signaling message may be transmitted in a first subframe of the consecutive subframes, and may identify the secondary signaling channel.
Method and apparatus for operating control channels for beamforming-based wireless communication
Provided is a method and apparatus for operating a control channel in a beamforming-based wireless communication system. The provided method includes acquiring information indicating a best Base Station (BS) receive beam for Uplink (UL) communication; determining a control channel region for UL control channels in a UL interval considering the best BS receive beam, the control channel region being a predetermined region that is mapped to the best BS receive beam; and exchanging information about the control channel between a BS and a Mobile Station (MS) through the control channel region.
Downlink procedures for LTE/LTE-A communication systems with unlicensed spectrum
Long term evolution (LTE)/LTE-Advanced (LTE-A) deployments with unlicensed spectrum leverage more efficient LTE communication aspects over unlicensed spectrum, such as over WIFI radio access technology. In order to accommodate such communications, various downlink procedures may be modified in order to handle communications between licensed and unlicensed spectrum with LTE/LTE-A deployments with unlicensed spectrum.
Channel allocation system for protected service areas
In described embodiments, a channel allocation system, such as a white space channel allocation system, employs a server processor and database to record communication characteristics of incumbent service providers licensed or otherwise registered to operate within certain frequency spectrum. The channel allocation system allows registration of licensed service providers, or access to existing licensed service provider databases, to obtain required information of communication characteristics to form protected service contours. Based on the protected service contours, the availability of channels in areas is pre-computed. In addition, unlicensed or unregistered users, such as TV band devices (TVBDs), register with the channel allocation system and request channel lists of channels to operate on with a query. The system performs an iterative search of areas with successively finer resolution and identifies channels that might be included in a channel list in response to the query.
Uplink coordinated multi-point
Disclosed embodiments may include an apparatus having one or more processors coupled to one or more computer-readable storage media. The one or more processors may be configured to transmit and/or receive channel state information reference signal (CSI-RS) resource configuration information, demodulation reference signals (DM-RS), uplink sounding reference signals (SRS), and power control parameters to support uplink coordinated multi-point (CoMP) operations. Other embodiments may be disclosed.
Dual band LTE small cell
A dual band LTE small cell base station communicates on both licensed bands and unlicensed bands. The small cell base station modifies the communication protocol utilized by the licensed band to enable communication over an unlicensed band. This modification involves replacing the physical (PHY) layer of the licensed band communication protocol with the PHY layer of a to-be-used protocol in an unlicensed band.
Wireless communication system, mobile station apparatus, base station apparatus, wireless communication method, and integrated circuit
A base station apparatus assigns a plurality of cells to a mobile station apparatus, and the base station apparatus and the mobile station apparatus communicate with each other via the plurality of cells. The plurality of cells are grouped into a plurality of groups, each group being made up of at least one cell having an identical transmission timing in the mobile station apparatus. In a case where a cell that has been deleted from one of the plurality of groups is added to another one of the plurality of groups in accordance with an instruction from the base station apparatus, the mobile station apparatus sets the added cell to be in a deactivated state.
Power compensation method, base station, and terminal equipment
A power compensation method, base station and user equipment. The method includes: transmitting, by a base station, when an expanded UE-specific PDCCH is amplitude phase keying modulated, a first ratio of the EPRE of the expanded UE-specific downlink control channel to the EPRE of a DM-RS in a first time slot occupied by the expanded UE-specific PDCCH, so that the terminal equipment performs power compensation in decoding the received data transmitted by the base station according to the first ratio, thereby ensuring correct demodulation of the received data by the terminal equipment.
Technique for uplink data processing
A technique for allocating a uplink data volume 504 to uplink data pending for transmission in a telecommunications device is provided. As to a method aspect of the technique, a grant of the uplink data volume is received. A portion 502 of the granted uplink data volume is reserved for transmission of a buffer status report, which is to be provided by a Data Link layer 300 of the telecommunications device. A size of the buffer status report depends on a number of channels for which uplink data is pending. If an unreserved portion 503 of the granted uplink data volume is not sufficiently sized for the pending uplink data, the unreserved portion and at least a part of the reserved portion are allocated to at least a portion of the pending uplink data when the allocation corresponds to a reduction of a number of channels for which uplink data is pending so that the buffer status report is at least reduced in size.
Method of scheduling communication in a wireless communication network
A system and method of scheduling communication in a wireless communication network are provided. An access node can receive an uplink scheduling request. The access node can communicate with a wireless device over a first and second frequency band. The access node can determine an interference indicator associated with the wireless device. The access node can determine a first scheduling scheme for the first frequency band and a second scheduling scheme for the second frequency band based on the uplink request and the interference indicator. The first scheduling scheme can comprise a first uplink portion and the second scheduling scheme can comprise a second uplink portion. The first uplink portion does not overlap the second uplink portion. The wireless device can be instructed to communicate uplink data to the access node during the first uplink portion and uplink data to the access node during the section uplink portion.
System and method for supporting concurrent deployment of multiple transmission time intervals for uplink transmissions by user equipment in a non-dedicated channel state
A random access procedure for UEs in Cell_FACH or another suitable non-DCH state, which enables concurrent deployment of 2 ms and 10 ms TTIs for uplink transmissions on the E-DCH. In some examples, the procedure may further enable utilization of a Rel-99 PRACH transmission by UEs in the Cell_FACH or other suitable non-DCH state.
A radio network controller, RNC, keeps control of how many users to configure on a first transmission time interval, TTI, and how many to configure on a second TTI. For example, a method is performed by the RNC, for configuring at least one radio bearer between a radio base station, RBS, and wireless communication devices. The method comprises sending, from the RNC to the RBS, radio bearer configuration information for controlling a distribution between a first number of wireless communication devices and a second number of wireless communication devices where the first number of wireless communication devices are operating a radio bearer using a first TTI, and the second number of wireless communication devices are operating a radio bearer using a second TTI.
Communication controller and method for transmitting data
A communication controller is described comprising a determiner configured to determine, for each communication connection of a set of communication connections between a communication device and another communication device, a characteristic of the communication connection, a selector configured to select a plurality of the communication connections based on the characteristics of the communication connections and a controller configured to control a transmission of data between the communication device and the other communication device to use the selected plurality of communication connections.
Methods, apparatuses, and systems for data transmission are described. A sending terminal sends data and a data identification of the data to a server. The data identification is broadcasted to one or more receiving terminals through a short distance wireless communication. The receiving terminal obtains the data from the server according to the data identification. When the sending terminal needs to transmit data to multiple receiving terminals, the techniques of the present disclosure do not require the sending terminal to establish a point-to-point connection with each of the receiving terminal. Thus, the techniques of the present disclosure effectively reduce transmission time with multiple receiving terminals, improve data transmission efficiency, and lower power consumption at the sending terminal.
Dynamic resource allocation by base station providing both broadcast and unicast services
A base station (10) dynamically allocates users among broadcast carriers and dynamically allocates carrier resources between broadcast and unicast service, based on the number of users actually receiving broadcast service on a carrier. The base station (10) periodically measures (204) the number of broadcast-only users registered to a carrier. As the number of such users decreases, the remaining idle broadcast-only are transferred (212) to other carriers transmitting the same broadcast content, and carrier resources are reallocated (208) to unicast service. When the carrier is moderately loaded, it may accept broadcast users transferred from other, lightly-loaded carriers, which are attempting to shed users to reallocate resources to unicast service. As the carrier becomes more heavily loaded, it will refuse (216) to accept transferred broadcast users. When the carrier's load reaches an upper threshold, the base station (10) allocates (220) resources of a new carrier to broadcast service, and moves users to the new carrier.
Methods and systems for discovery of home node B gateway support of positioning
Disclosed are methods and systems for enabling a Home Node B (HNB) to discover the positioning capabilities of an HNB Gateway (HNB GW) in supporting particular positioning operations associated with transporting Positioning Calculation Application Part (PCAP) messages between the HNB and a standalone serving mobile location center (SAS).
Method for categorization of multiple providers in a wireless communication service environment
A communication device locates a preferable wireless service provider in a multi-service provider environment using a frequency band search schedule. Initially, the communications device registers with a less preferred service provider in a first frequency band. While remaining registered with the less preferred service provider, the device examines several frequency bands in the order specified by the frequency band search schedule. A frequency band is examined by dividing the frequency band into many sub-bands, and by locating the strongest signal above a threshold within the sub-band being examined. The examination continues until a second frequency band having a more preferred service provider is located. The communication device then registers with the more preferred service provider. The category of service provider may be identified and displayed on the communication device.
Method, control node, gateway and computer program for enabling communication with a newly detected device
A method, control node, gateway and computer programs in a communications network for enabling communication with a newly detected device connected to the network. The method comprises receiving a request message including an id associated with the newly detected device from a gateway, and retrieving configuration data associated with the device based on the id, from a device vendor database, where the device vendor database is indicated by the id. The method further comprises providing a resource in the communications network based on the configuration data, acknowledging the request message to the gateway, thereby enabling the device to communicate with the resource in the communications network.
Determining access point power output
Examples relate to determining access point power output. In one example, a computing device may: identify, for a particular access point, a plurality of neighboring access points; identify, for each neighboring access point, a pathloss value that indicates a difference in a transmit power of the neighboring access point and a received signal strength observed by the particular access point; identify, from the neighboring access points, at least one adjacent access point, each adjacent access point having a pathloss value that is less than a pathloss threshold; generate a representative pathloss using the pathloss values of each adjacent access point; determine a target power level for the representative pathloss; and provide at least one of the neighboring access points with instructions that cause the at least one neighboring access point to adjust a power output level of the at least one neighboring access point.
Transmitting antenna level sensor of magnetic resonance imaging system and magnetic resonance imaging system
A transmitting antenna level sensor of a magnetic resonance imaging system and a magnetic resonance imaging system is provided. A first detection channel is used for detecting a first power of a first radio frequency signal source, and a second detection channel is used for detecting a second power of the first radio frequency signal source. A control unit is used for comparing the first power with the second power to obtain a first comparison result, and a first notification message is sent according to the first comparison result.
Method for controlling signal transmission power and device for same
A method for controlling transmission powers by a communication apparatus in a wireless communication system supporting a plurality of component carriers; and a communication apparatus therefore are discussed. The method according to one embodiment includes controlling transmission powers for one or more channels per each component carrier; when a sounding reference symbol (SRS) transmission overlaps with a physical uplink shared channel (PUSCH) transmission in a time domain, checking whether a total of a PUSCH transmission power for the PUSCH transmission on a first component carrier and a SRS transmission power for the SRS transmission on a second component carrier exceeds a maximum transmission power configured for the communication apparatus; and dropping the SRS if the total of the PUSCH transmission power and the SRS transmission power exceeds the maximum transmission power configured for the communication apparatus.
Smart co-processor for optimizing service discovery power consumption in wireless service platforms
The disclosure relates to a low-power co-processor subsystem that can optimize power consumption in a wireless service platform having a main wireless application datapath, wherein the low-power co-processor subsystem may offload certain service discovery tasks from the main wireless application datapath (e.g., such that components residing therein can transition to a low-power state). For example, the service discovery tasks offloaded to the low-power co-processor subsystem may be determined according to protocol-specific service descriptions associated with one or more services to be provided and/or consumed at a wireless device. Furthermore, rules to wake the components in the main wireless application datapath may be dynamically defined and redefined or otherwise tuned to maximize the time that the components in the main wireless application datapath can spend in the low-power state and to determine conditions under which to selectively wake the components in the main wireless application datapath as needed.
Method and apparatus for optimizing power consumption of a terminal in a mobile communication system
The present invention relates to a method and to an apparatus for optimizing the power consumption of a terminal in a mobile communication system. The method for optimizing power consumption of a terminal in a mobile communication system comprises: a determination step of determining whether there is a need for changing a configuration for a discontinuous reception operation of the terminal; and a transmission step of transmitting, to a base station, a request message for a change in the discontinuous reception operation, if it is determined that the change is needed.
Method and apparatus for optimizing power consumption of a terminal in a mobile communication system
The present invention relates to a method and to an apparatus for optimizing the power consumption of a terminal in a mobile communication system. The method for optimizing power consumption of a terminal in a mobile communication system comprises: a determination step of determining whether there is a need for changing a configuration for a discontinuous reception operation of the terminal; and a transmission step of transmitting, to a base station, a request message for a change in the discontinuous reception operation, if it is determined that the change is needed.
Methods and arrangements for frequency selective transmission
Logic may comprise hardware and/or code to select a narrow band from a wider channel bandwidth. Logic of communications between devices may select, e.g., a 1 or 2 MHz sub-channel from a wider channel bandwidth such as 4, 8, and 16 MHz and transmit packets on the selected 1 or 2 MHz channel. For instance, a first device may comprise an access point and a second device may comprise a station such as a low power sensor or a meter that may, e.g., operate on battery power. Logic of the devices may facilitate a frequency selective transmission scheme. Logic of the access point may transmit sounding packets or control frames across the sub-channels of the wide bandwidth channel, facilitating selection by the stations of a sub-channel and subsequent communications on the sub-channel between the access point and the station.
Dynamic receive diversity selection for LTE
Methods, apparatuses and computer readable media are described that configure wireless circuitry in a wireless communication device. The wireless communication device establishes a connection to a wireless network using wireless circuitry that includes a first radio frequency receive signal chain and a second radio frequency receive signal chain. The wireless communication device monitors uplink and downlink traffic activity communicated between the wireless communication device and the wireless network and measures downlink radio frequency receive signal conditions at the wireless communication device. The wireless communication device reconfigures the wireless circuitry to enable receive diversity or to disable receive diversity at the wireless communication device based on the monitored traffic activity and the measured downlink radio frequency receive signal conditions.
Apparatus, system and method for optimizing power conservation
A user equipment (UE) and corresponding methods to conserve power by the UE. The UE includes a transceiver, the transceiver configured to enable the UE to establish a connection with a Long Term Evolution (LTE) network and configured to operate using a Connected Discontinuous Reception (CDRX) functionality. The processor controls the transceiver by receiving an uplink (UL) grant at a first subframe of a frame of a cycle of the CDRX functionality, transmitting data based upon the UL grant at a predetermined second subframe, and receiving a response from the LTE network corresponding to one of an acknowledgement (ACK) and a negative ACK (NACK) at a predetermined third subframe. The processor deactivates the transmitter for a remainder of the frame based or deactivates a receiver for a remainder of the frame based upon whether the ACK is received.
Method and apparatus for signaling in dense network operations
A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus transitions to a dormant state and transmits a very low duty cycle signal (LDCS) while in the dormant state. The apparatus may transmit an LDCS configuration to a second entity, the second entity being one of an LPN that is not in a dormant state and a macro cell. The apparatus may further monitor for a RACH messages at a predetermined RACH delay after transmitting the LDCS. The apparatus may transition to a DRX/DTX mode. The DRX/DTX mode may be matched to at least one connected UE.
Wireless device, method, and computer readable media for synchronization in a wireless local-area network
Wireless devices, methods, and computer readable media for synchronization in a wireless local-area network. A method on a wireless communication device may include tuning to a first subchannel based on a schedule received from an access point (AP) the schedule to indicate that the HEW device is assigned to the first subchannel. The method may further include determining a target beacon receive time and tuning to a second subchannel to receive the target beacon at the target beacon receive time. The method may further include receiving the target beacon on the second subchannel and tuning back to the first subchannel. A method on an AP for synchronization may include transmitting information that indicates a target beacon receive time on a subchannel. The method may include not transmitting to a wireless communication device operating on a second subchannel for a period of time before the target beacon receive time, and transmitting a target beacon on a first subchannel at the target beacon receive time.
Channel access method in wireless LAN system
A channel access method in a wireless LAN system is disclosed. The channel access method for a terminal comprises the steps of: receiving a beacon transmitted from an access point; determining a channel access slot of a terminal allocated on the basis of the beacon; transmitting a data transmission request from the channel access slot to the access point; and receiving data transmission slot allocation information corresponding to the data transmission request from the access point. Thus, the present invention can reduce power consumption of the terminal.
Method, system and apparatus for providing coexistence between low power stations and non-low power stations
Examples are disclosed for techniques for allowing a wireless device to wake up a low power device while remaining compatible with other devices and wireless protocols. A first station determines that a low power device needs to wake up all or a portion of its circuitry in order to send and/or receive data from the first station. The first station sends a legacy preamble according to a standard wireless communication method such as according to IEEE 802.11 or Bluetooth addressed to the low power device. Legacy stations will recognize that a device is accessing the medium and will abstain from transmitting data during the transaction(s) between the first station and the low power device. The first station then sends a wake up payload according to a low power wireless communication method such as ASK or FSK to the low power device. The low power device recognizes the wake up payload and wakes up its main radio such as an IEEE 802.11 or Bluetooth radio. The first station sends and/or receives data to/from the low power device according to the standard wireless communication method. If there is no more data to send or receive, low power device powers down at least its main radio.
Power efficient data transmission
Teachings herein schedule a data transmission in a variable bandwidth wireless communication system based on the power efficiency of a mobile node. One or more processing circuits, of the mobile node or a network node, determine the value of a control setting that defines a power efficiency configuration of the mobile node. In one embodiment, for example, the power efficiency configuration indicates the mobile node is configured to operate at the maximum power efficiency attainable without the data rate of the data transmission falling below a minimum data rate required by a quality of service. Regardless, the one or more processing circuits select from different possible bandwidths of the data transmission a bandwidth that supports a given data rate and that, according to a power efficiency model that models power efficiency of the mobile node for the different possible bandwidths, yields a power efficiency comporting with the power efficiency configuration.
Intelligent wireless access point notification
A method that includes receiving, at a mobile device, information identifying an access point. The method further includes determining, at the mobile device, whether a count of encounters by the mobile device with the access point in response to the count satisfying the threshold with the access point satisfies a threshold. The method further includes displaying, at the mobile device, an indicator associated with the access point in response to the count satisfying the threshold.
Methods, systems, and computer readable media for access network discovery and selection
Methods, systems, and computer readable media for access network discovery and selection are disclosed. According to one aspect, a system for access network discovery and selection includes an access network discovery and selection function (ANDSF) network element for identifying to a user equipment (UE) an access network through which the UE can connect to a core network, the ANDSF including an interface for communicating with nodes in a core network. The ANDSF is configured to receive information from a node in the core network and perform an access network discovery or selection operation based at least in part on the received information.
Method and apparatus for enhancing voice service performance in communication system
A method for operating a switch in a communication network includes receiving path information of a service flow between a first user equipment (UE) and a second UE from a controller, receiving a packet forwarded through the service flow from a base station, and transmitting the packet to a path determined by the path information. An apparatus for a switch in a communication network includes a controller configured to receive path information of a service flow between a first user equipment (UE) and a second UE from a controller, receive a packet forwarded through the flow from an evolved NodeB and forward the packet to a path determined by the path information. Other embodiments are also disclosed.
Assembly, and associated method, for facilitating frequency allocations in a radio communication system to attain statistical spreading of electromagnetic energy
Apparatus, and an associated method, by which to facilitate frequency channel allocation, and reallocation, in a radio communication system. Channel allocation and reallocation is effectuated to attain a desired statistical emission spectrum. Implementation is effectuated, for instance, in a WLAN system operable pursuant to the IEEE 802.11 standard but implemented in a 5 GHz frequency band.
Method and system for addressing an error condition associated with a service that enables user equipment devices being served by a first access network to engage in signaling with a second access network
In accordance with the disclosed methods and systems, while providing a service that enables user equipment devices (UEs) being served by a first network to engage in signaling with a second network via the first network, a controller or other network entity may detect an error condition associated with the service, such as a threshold-high level of signaling or an interface failure. In response to detecting the error condition, base stations in the first network may then direct one or more UEs being served by the first network to refrain from using the given service. As a result, the one or more UEs may refrain from using the given service and may instead use another approach to engage in signaling with the second network, which may enable the one or more UEs to circumvent the error condition until it gets remedied.
Method for reselecting cell in wireless communication system and apparatus supporting same
Provided is a method for user equipment reselecting a cell in a wireless communication system. The method comprises: obtaining a public land mobile network (PLMN) list from a serving cell, wherein the PLMN list lists a plurality of PLMNs according to businesses sharing the serving cell; obtaining cell reselection information from the serving cell, wherein the reselection information includes a plurality of cell reselection information sets related to the plurality of PLMNs; and reselecting the cell based on the PLMN list and the cell reselection list.
A handover control method for a network node of a cellular communication network may include the network node receiving one or more signals from each of one or more other network nodes. The one or more signals are indicative of a result of uplink signal strength measurements performed by the other network node in relation to a wireless communication device and an available downlink transmission power value of the other network node. The network node then bases a handover decision on an estimated downlink received power of the wireless communication device in relation to the other network node. The estimated downlink received power is based on the result of the uplink signal strength measurements and the available downlink transmission power.
Mobile telecommunications system
A method of processing a handover request from a base station controller (BSC) of a GSM (Global System for Mobile communication)-type network. The method comprises the steps of passing a handover request with GSM-type parameters from a base station controller (BSC) through a Master Switching Center (MSC) of the GSM-type network to a UMTS core network (CN) and to a Radio Network Controller (RNC) of the UMTS (Universal Mobile Telecommunications System) network, translating the GSM-type parameters to UTRAN parameters in the Radio Network Controller (RNC), and allocating UTRAN resources in response to the translated parameters.
Cell user occupancy indicator to enhance intelligent traffic steering
Traffic associated with user equipment that are served by a first radio access network is steered to a second radio access network based on a cell user occupancy criterion. Cell user occupancy data that represents a maximum number of devices served by an access point is determined based on a type of the access point (e.g., macro access point, femto access point, WiFi access point, etc.). Further, based on the cell user occupancy data, a normalized index value is generated that is relative to different cell types/capacities. The cell user occupancy data is then transmitted to one or more neighboring access points that can utilize the cell user occupancy data to facilitate traffic steering, load balancing, and/or neighbor relationship management.
Methods and an apparatus for transferring data communication sessions between radio-access networks
The disclosure is directed to a method carried out on a wireless device capable of communicating over a first radio-access network (“RAN”) using a first radio-access technology (“RAT”) and over a second RAN using a second RAT. According to various implementations, the device proxies a data communication session between an application executing on the device and a remote host over the first RAN, requests data content from the remote host during the session, transfers the session from the first RAN to a second RAN based on the amount of the data content that remains to be received from the remote host during the session and based on a radio-access condition of the first RAN or of the second RAN.
Data forwarding method, device, and base station
The present invention provides a data forwarding method, device, and base station and belongs to the field of communications. According to the present invention, when forwarding data, radio equipment can forward data according to a rate different from a rate at which the data is received.
Enhanced mechanism to achieve better throughput in X+GSM MSMS devices
A method for improving data throughput on a subscription includes: filtering data traffic throughput on a first subscription; comparing the filtered data traffic throughput to a threshold data rate; determining if the filtered data traffic throughput is greater than a threshold data rate value; and in response to a determination that the filtered data traffic throughput is equal to or less than the threshold data rate value, determining whether a tune away (TA) mode different than a first TA mode increases data traffic throughput on the first subscription.
Communication control system, service management server, mobile station, communication control method, and non-transitory computer readable medium
An object is to provide a communication control system, a service management server, a mobile station, a communication control method, and a program, with which the processing load of a network apparatus can be reduced in the case where a great number of communication apparatuses are concentrated. A communication control system of the present invention includes a mobile station concentration prediction unit (10) that predicts an area where a plurality of mobile stations (31) to (34) will be densely concentrated by movement of the plurality of mobile stations (31) to (34), and a communication timing control unit (20) that determines a mobile station to be a communication timing controlled target out of the plurality of mobile stations (31) to (34) predicted to be densely concentrated in the area, and controls the communication timing of the determined mobile station.
Method and apparatus for transmitting data in network system, and data transmission system
A method is disclosed, comprising receiving a first connection request from a device, and in response to receiving the first connection request from the device, connecting to and sending a first confirmation message to the device. The method includes receiving a set of one or more packet fragments from the device, buffering the set of packet fragments, and sending a packet-receipt confirmation to the device. The method includes sending a second connection request to a central node server and receiving a second confirmation message from the central node server. The method includes, in response to receiving the second confirmation message, combining the set of packet fragments into one or more data packets, sending the combined data packets to the central node server, and receiving a second packet-receipt confirmation from the central node server, and in response to the second packet-receipt confirmation, deleting the first set of buffered packet fragments.
Segmented data transfer with resume capability
A large volume of location related information, e.g., assistance data or location information, is transferred in separate messages between a server and a target by segmenting the location related information into a plurality of messages. If the connection between the server and target is released prior to completion of the transfer of the location related information, the transfer is resumed by sending the remaining messages after connection is reestablished. Each message is sent after receiving an acknowledgement of receipt. Thus, both the server and target can control the flow of the transfer by delaying the sending of one or more messages or delaying the sending of the acknowledgements of receipt.
Method and apparatus for determining message transmission in mobile communication system when simultaneously using SPS and DRX
A method for message transmission of a base station and message determination of a terminal in a mobile communication system is provided. The method includes, if a condition for operating in a first mode is met, generating a first message instructing to operate in the first mode, transmitting the first message to a terminal, receiving a response message for the first message, and determining whether the terminal has received the first message, wherein the first message transmission is performed within a time period.
Method and apparatus for non-access stratum signaling
For a targeted wireless device that is operating in a communication network that includes a first access network and an associated core network, the teachings herein advantageously provide for the conditional selection of a second access network, for exchanging NAS signaling between the communication network and a targeted wireless device, to offload such signaling from the first access network. The second access network is different from the first access network and may or may not be integrated with the core network, but the first access network and/or the associated core network are adapted to provide for the conditional routing of certain NAS signaling through the second access network, which NAS signaling would conventionally be conveyed via the first access network. In an example, the first access network is a 3GPP RAN and the core network is a 3GPP core network, while and the second access network is a non-3GPP RAN.
Spatial quality of service prioritization algorithm in wireless networks
A method and apparatus for spatial Quality of Service (QoS) in a wireless network include determining a relative or absolute location of target devices receiving or requesting a same media stream; determining a group of the target devices within a given proximity of one another utilizing resources from the same wireless access network; for each target device in the group while the resources remain in the wireless network: determining a target device based on relative spatial distance to other target devices in the group with prioritized reception of the media stream; and granting the determined target device prioritized reception of the media stream.
Methods and apparatus for transmitting data between different peer-to-peer communication groups
Methods and apparatus for transmitting data between different peer-to-peer communication groups are disclosed. A wireless device determines if it is simultaneously connected to a plurality of peer-to-peer communication groups and instantiates a bridge interface at the wireless device (e.g., TRILL RBridge) for communications between each peer-to-peer communication group. The wireless device also determines if it is simultaneously connected to at least one peer-to-peer communication device and an access point. In such an instance, the wireless device determines if the access point also includes a bridge interface. If the access point does not include a bridge interface, the wireless device instantiates/runs the bridge interface at the wireless device for communications between the at least one peer-to-peer communication device and the access point. If the access point does include a bridge interface, the wireless device causes the bridge interface at the access point to be instantiated for communications between the at least one peer-to-peer communication device and the access point.
Radio base station for minimisation of drive tests (MDT)
In “Immediate MDT,” location information on a mobile station UE is acquired along with “(MDT) MeasurementReport” for all “Trigger Types.” A setting unit 11 of a radio base station eNB according to the present invention is configured to be able to set “MeasConfig” and “includeLocInfo” to “RRCConnectionReconfiguration,” set “MeasObjectId,” “ReportConfigId,” and “MeasId” to the “MeasConfig,” and indicate in the “includeLocInfo” that location information on the mobile station UE is to be attached to “(MDT) MeasurementReport.”
WTRU measurements handling to mitigate in-device interference
A method for performing measurements in a device with at least two radio access technologies (RATs) is disclosed. The method may include establishing a first measurement schedule on a first RAT, and establishing a first transmission schedule for a second RAT. The method may further include changing at least one of the first measurement schedule or the first transmission schedule to prevent measurements of the first measurement schedule from occurring contemporaneously with transmissions of the first transmission schedule. Transmissions from the second RAT may interfere with measurements on the first RAT. The method may include transitioning from the first measurement mode to a second measurement mode based on determining the second RAT is operating on potentially interfering frequency.
User equipment, base stations, and methods allowing for handling of colliding channel state information reports
Collision handling of channel state information (CSI) reports is described for enhanced inter-cell interference coordination (eICIC), coordinated multipoint transmission (CoMP), and/or carrier aggregation (CA). Various aspects include prioritization schemes to resolve collisions between different CSI reporting sets in relation to the same component carrier (CC) used with transmission. Multiple stages of prioritization may identify CSI for a report based on various criteria. Tie breaker criteria may be defined for priority among CSI reports that changes for different subframes. In other aspects, PUSCH is utilized to transmit CSI for prioritized reporting sets in a subframe. In yet other aspects, if parallel PUCCH is supported, colliding CSI may be handled on a per PUCCH basis. Other aspects may allow for prioritizing periodic CSI within each of multiple CCs, and then prioritizing over different CCs to handle an interaction of CSI reports for CA, eICIC and/or CoMP.
Controlling application access to applications and resources via graphical representation and manipulation
An approach is provided for controlling a first application's access of a second application of a mobile device. Attributes are assigned to a graphical element displayed by the mobile device. Manipulations of first and second icons representing first and second applications, respectively, are detected as placing the first and second icons into the graphical element. One of the assigned attributes specifying an exchange of information permitted between the first and second applications is obtained. If access control settings of the first application are automatically configurable, the access control settings are automatically configured based on the obtained attribute; otherwise, the obtained attribute is applied to the first application by utilizing resource controls of the mobile device operating system. Based on the configured access control settings or the attribute applied to the first application, an access of the second application by the first application is controlled.
Intra-premises content and equipment management in a femtocell network
Traffic and signaling is routed between a set of networked femto access points (APs) and devices served there from, and content and equipment that is part of a network functionally coupled to the set of networked femto APs is managed. Networked equipment spans a network deployed within the coverage area spanned by the set of femto APs. A routing platform functionally couples the networked equipment and the femto AP to enable content manipulation amongst a mobile device and the equipment. Routing platform also affords remote control of the networked equipment. Delivery of advertisement and monetary incentive(s) can be provided through the routing platform to the equipment. Routing platform further provides security features related to operation of specific equipment and wireless services supplied via the routing platform.
Provisioning subscriptions to user devices
Various embodiments are directed to systems and methods for provisioning a subscription service subscription to a user of a user device, the user device capable of alternatively communicating on a mobile telephone network and on a wireless data network. A request to subscribe the user to the subscription service may comprise a user device identifier and may be received from a mobile service provider system. A message to the user device may be initiated via the mobile telephone network. An access request may be received from the user, via the user device. Upon verifying that the access request was sent by a recipient of the message, the user may be provided with access to the subscription service.
Method for authenticating driver for registration of in-vehicle telematics unit
A method of registering a telematics unit for telematics services is disclosed. The method comprises a mobile communication device of a subscriber contacting a mobile network operator (MNO) to register a telematics unit (TU) of a vehicle for telematics services, wherein the mobile communication device provides a vehicle identification number (VIN) of the vehicle that the TU is associated with. The MNO looks up a phone number of the TU based on the VIN. A mobile communication network sends an electronic message to remove incoming voice call blocking of the phone number. The MNO then places a voice call to the unpublished phone number of the TU. The MNO then validates the subscriber. The MNO then engages in a voice dialog with the subscriber associated with the vehicle via the TU. The mobile communication network then sends an electronic message to reestablish voice call blocking of the TU.
The present disclosure describes techniques for configuring and participating in encrypted audio calls, audio conferences, video calls, and video conferences. In particular, a call initiator generates a meeting identifier and a first meeting key, which are encrypted using a first encryption key and distributed to one or more participants of the call. The one or more participants decrypt the meeting identifier and the first meeting key, and use that information to participate in the encrypted call. Further, participants respond to the encrypted communication data by encrypting their reply data with the first meeting key. The call initiator decrypts the reply data using the first meeting key.
Wireless local area network configuration method and wireless terminal
A wireless local area network configuration method and a wireless terminal. In embodiments of the present application, a first MCC is acquired from a user card of the wireless terminal, and then first wireless local area network configuration information corresponding to the first MCC is determined, so that wireless local area network configuration can be performed for the wireless terminal by using the first wireless local area network configuration information. Therefore, a problem in the prior art that an operation of wireless local area network configuration for a wireless terminal is complicated and error-prone can be resolved, thereby improving configuration efficiency and reliability.
Method and apparatus for activating an emergency beacon signal
A portable communication device comprises a radio frequency signal transceiver configured to receive an instruction signal; and control electronics configured to detect that the instruction signal has been received; and cause the portable communication device to transmit a beacon signal responsive to the instruction signal being detected by the control electronics.
Closed group wireless local area network provisioning
Methods and apparatus, including computer program products, are provided for provisioning a closed group of user equipment. In some embodiments, there is provided a method. The method may include receiving one or more first messages indicating a closed group comprising at least one of a plurality of user equipment; generating provisioning information for the closed group; and sending one or more second messages including the provisioning information to the at least one of the plurality of user equipment. Related apparatus, systems, methods, and articles are also described.
Hybrid communications for devices on vehicles
Techniques for providing hybrid communications to devices on vehicles include using a forward link to deliver data, that is intended to be received by an on-board device, onto a vehicle, and using a reverse link in a different frequency band to send reverse data from the vehicle. A subsequent forward link is selected, based on the reverse data, from a plurality of forward links, each of which is supported by a different frequency band. Forward data may be multiplexed and/or multicast, and in some cases, multiple forward links may be used for distributed forward data delivery. These techniques allow for efficient data delivery to the vehicle, and in particular while the vehicle is in transit and link conditions are dynamic.
Application layer related group priority access using eMBMS and LTE priority access
The disclosure relates to dynamically controlling group priority access to a wireless network for a plurality of subscriber devices. An aspect transmits, on a broadcast/multicast interface, a priority group list indicating a priority state of at least one communications group of subscriber devices, wherein a subscriber device is barred from performing channel access procedures when at least one group identifier of the priority group list does not match at least one group identifier of a list of group identifiers of the subscriber device. An aspect receives, on a broadcast/multicast interface, a priority group list indicating a priority state of at least one communications group of subscriber devices, and bars channel access procedures when at least one group identifier of the priority group list does not match at least one group identifier of a list of group identifiers of the subscriber device.
Triggering geolocation fix acquisitions on transitions between physical states
A method and device for triggering acquisition of geolocation fix information. The method include determining activity state information based on information from one or more sensors. It is determined if an activity state has transitioned to a particular activity state based on the activity state information. Geolocation fix information is acquired if the activity state transitioned to the particular activity state.
Dynamic generation of customized content for display on a network device
Methods and apparatuses are described for dynamically generating customized content for display on a network device. A server computing device receives a plurality of data elements from a network device upon initiation of an interaction between the network device and a tag in proximity to the network device. The server generates a content payload using at least a portion of the received data elements, where the content payload comprises source code defining content for display, a style of the content for display, and a layout of the content for display. The generating step includes querying a content repository based upon the received data elements to retrieve portions of the source code and aggregating the retrieved portions of the source code to form the content payload. The server computing device receives a request for the content payload, and transmits the content payload for generation of a graphical display.
Methods for providing enhanced telecommunication services
A first method for facilitating personal contacts among a plurality of subscribers to a location-based person contact service provided by a service provider; and a second method for real-time monitoring of vital signs of a living being. In the first method, personal profiles are transmitted to subscribers. In the second method, information relating to a violated vital sign parameter determined from the monitoring is communicated to a local communication node.
Dynamic geofence based on members within
One example embodiment relates to a method that comprises receiving, via a first portable electronic device, contextual information and a geolocation relating to a first user in a network-based system; receiving, via second portable electronic device, contextual information and a geolocation relating to a second user in the network-based system; identifying a common element in the received contextual information relating to the first user, and the received contextual information relating to the second user; in response to an identification of the common element, defining a boundary for a geofence based on the geolocation of the first or second users, and redefining the boundary of the geofence to exclude at least one member from the population, the exclusion based on an identified change in geolocation or contextual information relating to the at least one excluded member.
Method and device for transmitting location information of user equipment
Disclosed is a method for transmitting location information about user equipment, used for determining the location of user equipment more accurately by the core network, benefitting operations such as accurate charging by the core network. The method includes: a control plane management device receiving location information reported by a relay node (RN), wherein the location information includes relevant information about the donor cell where the RN is located; and the control plane management device determining the location of UE according to the received location information, and sending the latest location information about the UE to a charging function node after the location of the UE has changed. Also disclosed is an implementing method for the charging function node side, and a device used for implementing these methods.
Communication apparatus, method of controlling the same, and storage medium
A communication apparatus of the present invention and the method of controlling the same associate and store device identification information that identifies a device and access point identification information that identifies an access point, and upon obtaining, from a device, communication information for communicating with the device, specify access point information corresponding to device identification information included in the communication information obtained from the stored access point identification information. Then, the access point indicated by the specified access point information is connected to, and communication is executed between a device indicated by the device identification information included in the communication information and the communication apparatus.
Communication method, electronic device, and storage medium
A method of performing communication by a first electronic device is provided. The method includes receiving an input for communication with a third electronic device, determining at least one of a first communication module of the first electronic device and a second communication module of a second electronic device for the communication with the third electronic device, and controlling the first or second communication module for the communication with the third electronic device in response to the input.
Vehicle entertainment unit and method of controlling the same
A method of controlling a vehicle entertainment unit mounted in a vehicle using a center stack control system of the vehicle includes establishing a BLUETOOTH connection between the center stack control system and the vehicle entertainment unit, retrieving metadata from the vehicle entertainment unit, transmitting the metadata from the vehicle entertainment unit to the center stack control system via the BLUETOOTH connection, receiving a control command at the vehicle entertainment unit via the BLUETOOTH connection, mapping the control command to a corresponding function of the vehicle entertainment unit at the vehicle entertainment unit, and executing the corresponding function at the vehicle entertainment unit.
Temporary identifiers and expiration values for discoverable user equipments (UEs)
A temporary identifier is assigned to a discoverable user equipment (UE) in an assignment, an expiration value is assigned to the assignment, and the temporary identifier and the expiration value are associated to a long-term identifier of the discoverable UE. The temporary identifier and an indication of the expiration value are provided to the discoverable UE. The temporary identifier and an indication of the expiration value are provided to a discovering UE responsive to receipt of an inquiry including the long-term identifier of the discoverable UE The discoverable UE broadcasts the temporary identifier. If the broadcast is heard by the discovering UE, the discovering UE may identify that the broadcast is from the discoverable UE, based on the association of the long-term identifier to the temporary identifier.
Methods and apparatus for managing machine-type communications
The described aspects include methods and apparatus providing MTC in a wireless network. In an aspect, a narrow bandwidth within a wide system bandwidth is allocated for communicating data related to MTC. MTC control data generated for communicating over one or more MTC control channels for an MTC UE within the narrow bandwidth is transmitted over the one or more MTC control channels. The one or more MTC channels are multiplexed with one or more legacy channels over the wide system bandwidth. Other aspects are provided for transmission mode and content of the MTC control data or other MTC data.
Generating an output signal by send effect processing
An output signal is generated from an input signal by applying a send effect processing to the input signal. The input signal comprises a weighted sum of component signals. Dependencies between the weighted component signals are represented by parameters. In accordance with the present invention, the output signal is generated in dependence of the parameters to compensate for an unequal weighting of component signals comprised in the input signal. Due to this compensation the strength of the send effect corresponding to the separate component signals is (nearly) proportional to the strength of each of the component signals, which results in more realistic surround experience.
Nonlinear power supply ramping for pop-click noise reduction
A nonlinear power supply generator is provided that nonlinearly changes a power supply voltage for a circuit during power up of the circuit to reduce high-frequency noise in an output signal from the circuit.
Method, apparatus and computer program for generating an spatial audio output based on an spatial audio input
A method, apparatus and computer program for: receiving a spatial audio input; determining a direction of interest from the spatial audio input; and generating a spatial audio output dependent on the spatial audio input and the direction of interest.
Hearing aid comprising a flexible connection member
A hearing aid device configured to be inserted into the ear canal of a hearing aid user. The hearing aid includes a receiver, a hearing instrument body, and a connection member extending between the hearing instrument body and the receiver. The connection member is a permanent part of the hearing aid device and the connection member has a stiffness that allows the receiver to be inserted into the ear canal by moving the hearing instrument body towards the eardrum. The connection member achieves a first stiffness sufficiently large to insert the hearing aid device into the ear canal and achieves a second significantly reduced stiffness which makes the hearing aid device comfortable to wear for the user.
Self-calibration of multi-microphone noise reduction system for hearing assistance devices using an auxiliary device
A hearing assistance system calibrates a noise reduction system of a hearing assistance device. The system comprises a hearing assistance device, and an auxiliary device. The hearing assistance device comprises a multitude of input units, and a multi-channel beamformer filtering unit configured to determine filter weights for a beamformed signal. The system further comprises a user interface for activating a calibration mode. The auxiliary device comprises an output transducer for converting an electric calibration signal to an acoustic calibration sound signal. The system is configured to estimate a look vector for a target signal originating from a target signal source located at a specific location relative to the user based on the acoustic calibration sound signal.
Hearing assistance apparatus
A hearing assistance device includes two transducers which react to a characteristic of an acoustic wave to capture data representative of the characteristic. The device is arranged so that each transducers is located adjacent a respective ear of a person wearing the device. A signal processor processes the data to provide relatively more emphasis of data representing a first sound source the person is facing over data representing a second sound source the person is not facing. At least one speaker utilizes the data to reproduce sounds to the person. An active noise reduction system provides a signal to the speaker for reducing an amount of ambient acoustic noise in the vicinity of the person that is heard by the person.
Adjustable ventilation openings in MEMS structures
A MEMS structure and a method for operation a MEMS structure are disclosed. In accordance with an embodiment of the present invention, a MEMS structure comprises a substrate, a backplate, and a membrane comprising a first region and a second region, wherein the first region is configured to sense a signal and the second region is configured to adjust a threshold frequency from a first value to a second value, and wherein the backplate and the membrane are mechanically connected to the substrate.
Ear set device
An ear set device that includes a main body; and one or more earphones configured to output a response signal, wherein at least one of the one or more earphones includes: a first detecting unit configured to detect whether the one or more earphones are attached to a user, wherein the main body includes a communication unit configured to perform wireless communication with the one or more earphones, a second detecting unit configured to detect a location of the main body, and a control unit configured to, based on a determination that the main body is inside a vehicle and a determination that the vehicle is operating while the one or more earphones are attached to the user, receive, from the vehicle, information related to an operation of the vehicle and output a response signal corresponding to the received information through the one or more earphones is disclosed.
In-car audio system
An in-car audio system includes a speaker unit. A frame of the speaker unit is fixed to a support plate serving as part of the structural member of a vehicle via a partition wall member. The support plate has an opening formed therein. A duct is connected to the opening, and the opening communicates with the outside of the vehicle. A space surrounded by the speaker unit, the support plate, and a partition wall member serves as a first acoustic resonance space, and a communication channel located inside the duct serves as a second acoustic resonance space.
Program telecast monitoring using watermarks
Example methods disclosed herein include associating a first data pattern obtained from a first sequence of watermarks detected by a first media monitor at a first time with a first transmission of first media when the first sequence of watermarks include a first identifier associated with the first media. Disclosed example methods also include associating a second data pattern obtained from a second sequence of watermarks detected by the first media monitor at a second time with a second transmission of the first media when the second sequence of watermarks include the first identifier associated with the first media. Disclosed example methods further include comparing a third data pattern obtained from a third sequence of watermarks detected by a second media monitor with the first and second data patterns to determine whether the second media monitor monitored the first transmission or the second transmission of the first media.
Automated discovery and launch of an application on a network enabled device
A method, apparatus and system related to automated discovery and launch of an application on a network enabled device are disclosed. In one embodiment, a method of a client device includes determining that a networked media device sharing a local area network common with the client device has automatically detected an audio-visual data and/or an application currently being accessed by a user of the client device. The client device automatically communicates a present state of the audio-visual data and/or the application currently being accessed by the user of the client device to the networked media device. Then, the client device detects that the audio-visual data and/or the application currently being accessed by the user of the client device has been launched on the networked media device. Optionally, a haptic gesture may be applied on the client device by the user to transport the audio-visual data and/or the application from the client device to the networked media device. The application may serve a control point when the present state of the audio-visual data and/or the application currently being accessed by the user of the client device is communicated to the networked media device. In addition, an automatic content recognition algorithm in the client device and/or the networked media device may generate a meta-data associated with content in the present state of the audio-visual data.
Targeted television advertising based on profiles linked to multiple online devices
A profile provider: (i) associates a primary online device (OD1) with a set-top box (STB); (ii) a location of OD1 at some point in time is estimated to be “near” the STB, thereby establishing a STB proxy location; (iii) one or more secondary online devices (OD2s) are observed to be located “near” the STB proxy location and are associated with the STB; and (iv) a television advertisement is selected to be directed to the STB, which selection is based at least in part on profile information linked to one of the associated OD2s. The method can be particularly advantageous in situations wherein: the STB is not connected to any computer network; the STB is not ever connected to the same local area network as OD1 or OD2; or television service (used by the STB) and online access (used by OD1 and OD2s) are provided by different service providers.
System for managing a configuration of a media content processor
A system that incorporates teachings of the present disclosure may include, for example, a media content processor having a controller adapted to transmit to a web server one or more configurations of said media content processor. The web server can record said one or more configurations to perform one among re-provisioning of the media content processor after it experiences a loss of configuration information and provisioning of another media content processor. Other embodiments are disclosed.
Method and device for recording multimedia data
In a network system including a mirror switch, a distribution device and a plurality of recording devices, a method for recording multimedia data is provided. The mirror switch sends communication data to the distribution device and the plurality of recording devices. The distribution device obtains multimedia data identification information from a signaling message included in the communication data, generates a recording instruction which includes the multimedia data identification information, and sends the recording instruction to the recording device to instruct the recording device to record the multimedia data.
Method and system for synchronizing signals in a communication system
Synchronizing signals in a communication system may include determining the amount of data stored in a buffer, comparing the amount of data to a plurality of threshold levels and adjusting a speed of a clock used for decoding the data based on the comparing. The signals to be synchronized may correspond to a decoder clock in a set top box and to an encoder clock in a head end. The data in the buffer may correspond to packets of data corresponding to compressed audio and video information. The process may also include decoding information based on the clock and slew limited limiting the clock may. The process may further include setting at least one threshold to a calibration threshold during a calibration mode and a post-calibration threshold during a post-calibration.
Interactive television systems with digital video recording and adjustable reminders
An interactive television system is provided in which an interactive television application is used to support network-based or local personal video recorder capabilities. A user may use this application to view lists of program listings. The user may select a program listing of interest. The interactive television application may allow the user to set a reminder for the selected program at the scheduled broadcast time. This application may also allow the user to set a reminder for the selected program at a later time at which the program is not scheduled to be broadcast. The user may be provided with a reminder at this later time. In response, the user may direct the network-based or local personal video recorder to play back the program or may defer the reminder again. The interactive television application may collect information on program usage and popularity to determine how long to retain certain programming.
Customizable overlays based on information types identified by a user
Systems and methods are provided for customizing the display of interactive television overlays. A condition related to the display of an overlay on top of video for a television channel may be defined for each of a plurality of television channels. A default set of information types for an interactive television overlay (e.g., a FLIP overlay, a BROWSE overlay, etc.) may be defined for the plurality of television channels. When the overlay is displayed on top of video for a given television channel of the plurality of television channels, the overlay may include information of the default set of information types. One or more television channels of the plurality of television channels may be identified as channels for which the default set of information types does not apply (e.g., channels for which the overlay is not displayed or for which a custom set of information types is defined).
System and method for enhancing recorded radio or television programs with information on the world wide web
The present invention is directed to a system, method and computer program for enabling a user (100) (an auditor or a viewer) to access complementary information related to one or a plurality of sequences or topics of interest (102) in a recorded program (103) previously broadcast on the radio or television and played back on a device, such as an audio or video tape or disk recorder/player (104). The preferred embodiment of the invention relates to a system and method for enabling a person (100) listening to or watching a recorded program (103), to select one or a plurality of topics (101) (102) drawing his or her attention and for immediately receiving further information related to these topics from the World Wide Web. The system is based on the synchronization of local times (204) (205) of transmitters (201) and recorders (203). The flow of information transmitted, received and recorded is always synchronized, independently of the relative positions of recorders and transmitters. The synchronization is done referring to an absolute or universal time such as the Global Positioning System Time (GPS-time), the Global Orbiting Navigational Satellite System (GLONASS) time or another suitable universal time based on a satellite system. The GPS or GLONASS receivers are integrated or connected to the broadcasting stations. At the receiver side, GPS or GLONASS receivers may be integrated or connected to the audio or video recorders. The system is also based on a plurality of hyperlinks defined during the production and recording of the broadcast program, for given sequences corresponding to particular intervals of time synchronized with the universal (absolute) time. The hyperlinks are associated with the information that is broadcast in the program. They can be selected by users during the playback of the recorded program during predefined intervals of time and activated to access additional information and services.
System and method for routing media
A video streaming system comprises one or more servers, each of the one or more servers including one or more processors and a memory. The one or more servers receive signaling from a client device via a packet-based telecommunication network. In response to the received signaling, the one or more servers transmit to the client device, via the packet-based telecommunication network, one or more files in a format compatible with a media player on the client device, the one or more files including (i) an indication of one or more segments of video content, (ii) one or more URLs identifying one or more resources of a content distribution network available to facilitate streaming of the one or more segments and one or more advertisements to the client device, (iii) information instructing the client device how to communicate with the one or more resources to cause the one or more segments of the video content and the one or more advertisements to be streamed to the client device in a predetermined sequence, and (iv) an identifier uniquely associated with the client device and a viewing session for the video content.
Media playback workload scheduler
An apparatus, a computing device, a media playback workload scheduler, and a computer readable medium are described herein. The apparatus includes media playback workload scheduling logic to allocate a plurality of media frames for batch media processing, logic to process the media frames, and logic to render the processed media frames.
Dynamic item highlighting system
A method and apparatus for highlighting a program listing in a set of program listings based on selection criteria. The selection criteria may indicate that the a broadcaster has agreed to pay a service provider in return for the service provider ensuring that a program listing, corresponding to the program of the broadcaster, is highlighted in a program page that displays a set of program listings, such as television program listings. If there are multiple program listings, listed in a program page, that are to be highlighted, then details of the respective contracts may be used to determine which program listing to highlight. Such details may include the total contract value, a ratio of contract value-to-page view, and/or the time of contract formation.
Constraining availability of real time and non-real time content to locality of associated real time broadcast
A source of television programming sends the TV programming into a geographic region. The source also sends enhanced programming for transmission. The enhanced signals result in transforming 2D video in the TV programming signals into 3D signals and/or replacing 2D video in the TV programming signals with 3D video. The enhanced programming is tied to the TV programming signals to limit useful display of the enhanced programming to the geographic region.
Point to point media on demand
Reducing head end server demand for cable television/services systems with point-to-point Media on Demand content delivery is provided. Upon receiving a request for media content, a content table may be requested from one or more neighboring network-connected devices to search for the requested content. If the requested content is found, the content may be provided to the requesting device from the neighboring device. If the requested content is not found on a neighboring device, a hub server station may be queried for the requested media content. The media content may be provided by the head end server if the content is not available on a neighboring device or the hub server. Embodiments may reduce demand on the head end server and free the head end server capacity for other uses.
Image processing device and method for encoding and decoding image
The present disclosure relates to an image processing device and method capable of suppressing a reduction in encoding efficiency. The image processing device includes a setting unit which, in decoding of encoded data where image data are encoded, in a case where a current block is a block on which an orthogonal transform process is skipped, sets a custom scaling list for the block on which the orthogonal transform process is skipped as a scaling list used for an inverse quantization process on the current block and a decoding unit which performs a decoding process including the inverse quantization process using the scaling list set by the setting unit and decodes the encoded data. The present disclosure may be applied to, for example, an image processing device.
Systems and methods for separately defining dependencies for sub-layer based inter-layer prediction
Systems and methods for separately defining and indicating inter-layer prediction dependencies for a first layer with respect to each of a number of enhancement layers associated with the first layer are described herein. One aspect of the subject matter described in the disclosure provides a video encoder comprising a memory unit configured to store a first picture associated with a first layer and enhancement layer pictures associated with a plurality of enhancement layers. The video encoder further comprises a processor in communication with the memory unit. The processor is configured to provide a separate indication for each of the enhancement layers that indicates whether the first picture can be used for inter-layer prediction of the enhancement layer picture in a respective enhancement layer.
Codeword space reduction for intra chroma mode signaling for HEVC
Intra prediction is used in state-of-the-art video coding standards such as AVC. The intra prediction modes are coded into the bitstream. Luma and chroma components could potentially have different prediction modes. For chroma components, there are 7 different modes defined in AVC: vertical, horizontal, DC, diagonal directions, and “same as luma”. Statistics show that the “same as luma” mode is frequently used, but in AVC, this mode is encoded using more bits than other modes during entropy coding, therefore the coding efficiency is decreased. Accordingly, a modified binarization/codeword assignment for chroma intra mode signaling is able to be utilized for high efficiency video coding (HEVC), the next generation video coding standard.
Context and bypass encoding video
A method and apparatus for encoding and decoding video data. Including context encoding or decoding at least two bins of each significant transform coefficient in an array of transform coefficients and bypass encoding or decoding a sign indicator for each significant transform coefficient in an array related to a block of an image.
A video encoding apparatus for encoding a video stream comprises a reference frame cache for reference frame video data retrieved from a reference frame storage unit in external memory, which is derived from an individual frame of the video stream. First and second source frame storage units store first and second blocks of unencoded video data taken from first and second source frames of the video stream, respectively. First and second video encoders perform first and second encoding operations to encode the first and second blocks of unencoded video data with reference to the reference frame video data cached in the reference frame cache, respectively. The first video encoder and the second video encoder perform the first encoding operation and the second encoding operation in parallel with one another.
Multi-layer encoding and decoding
Innovations described herein provide a generic encoding and decoding framework that includes some features of simulcast and some features of scalable video coding. For example, a bitstream multiplexer multiplexes component bitstreams into a multi-layer encoding (MLE) bitstream that provides temporal scalability, spatial resolution scalability and/or signal to noise ratio scalability. Each of the component bitstreams provides an alternative version of input video, and a given component bitstream can be a non-scalable bitstream or scalable bitstream. The multiplexer follows composition rules for the MLE bitstream and may rewrite values of certain syntax elements of component bitstreams using an approach that avoids bit shifting operations. A corresponding demultiplexer receives an MLE bitstream that includes component bitstreams and demultiplexes at least part of at least one of the component bitstreams from the MLE bitstream, following decomposition rules for the demultiplexing.
Method and apparatus for determining intra prediction mode
Provided are a method and an apparatus for determining an intra prediction mode. The method includes: splitting a maximum coding unit into coding units of a first size; acquiring an edge direction of each of the coding units of the first size; grouping adjacent coding units of the first size based on uniformity of edge directions of the adjacent coding units of the first size; determining a size range of coding units to be applied to intra prediction on the intra prediction coding unit group; performing the intra prediction on the intra prediction coding unit group by using coding units having sizes included in the determined size range; and determining a coding unit for the intra prediction and an intra prediction mode of the coding unit by comparing costs according to the performed intra prediction on the coding units having the sizes included in the size range.
Moving image decoding apparatus, moving image decoding method and moving image encoding apparatus, and moving image encoding method
A moving image decoding apparatus includes a region boundary position information extracting unit which extracts region boundary position information between a clean region including at least one block encoded such that a pixel value is guaranteed to be decoded correctly, and a non-clean region, a region classification unit which specifies the clean region and the non-clean region in each picture based on the region boundary position information, a referenceability determining unit which, when a decoding target block belongs to the clean region, determines that blocks in the clean region in the decoding target picture and blocks in the clean region in the reference picture are referenceable, and, when the decoding target block belongs to the non-clean region, determines that all of blocks of the decoding target picture and the reference picture are referenceable, and a decoding unit which decodes the decoding target block with reference to only the referenceable blocks.
Random access and signaling of long-term reference pictures in video coding
A video coder can be configured to code a random access point (RAP) picture and code one or more decodable leading pictures (DLPs) for the RAP picture such that all pictures that are targeted for discard precede the DLPs associated with the RAP picture in display order.
Approaches for simulating three-dimensional views
Approaches enable display of image content (e.g., still or video content), providing an appearance or view based at least in part upon a current relative position and/or orientation of the viewer with respect to the device, and changes in that relative position and/or orientation. Image content is rendered consistent with a viewing angle for the current relative position of the viewer. As that viewing angle changes, the content can be re-rendered or otherwise updated to display the image content from a perspective that reflects the change in viewing angle. Different adjustments can be applied to portions of the content based upon the change in viewing angle. These adjustments can include changes due to parallax or occlusion, which when added to the rendered content enhance the viewer experience and increase realism for content rendered on a two- or three-dimensional display screen.
Stereoscopic field sequential colour display control
The present invention relates to a method, an apparatus, a method and a computer program suitable for controlling a stereoscopic field sequential color display to provide a first primary color component image for a user's first eye and a second primary color component image for the user's second eye, wherein the first and the second primary color component images are both provided either at least partially overlapping in time or alternately in uninterrupted succession and wherein the primary color components of the first and second primary color component images are different from each other.
Display device and control method thereof
Disclosed is a display device and a display method. The display device includes: an image processor which is capable of processing a plurality of images comprising a first image and auxiliary images that may be selectively displayed together with the first image; a display which displays the plurality of images thereon by making the auxiliary images visible corresponding to viewing angles; and a controller which controls the plurality of images to comprise at least one of a first auxiliary image, a second auxiliary image that is different from the first auxiliary image and a third auxiliary image that is used to reduce an interference between the first and second auxiliary image.
Lens module applied to camera
A lens module includes a first wafer level lens group, a second wafer level lens group, a first sensor, and a second sensor. The first wafer level lens group has a first optical axis. The second wafer level lens group has a second optical axis. The first optical axis is parallel with the second optical axis, and the first wafer level lens group and the second wafer level lens group are integrally formed. The first sensor is disposed corresponding to the first wafer level lens group, and the first sensor is disposed on the first optical axis. The second sensor is disposed corresponding to the second wafer level lens group, and the second sensor is disposed on the second optical axis.
3D image capture apparatus with depth of field extension
A 3D imaging apparatus with enhanced depth of field to obtain electronic images of an object for use in generating a 3D digital model of the object. The apparatus includes a housing having mirrors positioned to receive an image from an object external to the housing and provide the image to an image sensor. The optical path between the object and the image sensor includes an aperture element having apertures for providing the image along multiple optical channels with a lens positioned within each of the optical channels. The depth of field of the apparatus includes the housing, allowing placement of the housing directly on the object when obtaining images of it.
Visually-assisted stereo acquisition from a single camera
A method of indicating a suitable pose for a camera for obtaining a stereoscopic image, with the camera comprising an imaging sensor. The method comprises obtaining and storing a first image of a scene using the imaging sensor when the camera is in a first pose; moving the camera to a second pose; and obtaining a second image of the scene when the camera is in the second pose. One or more disparity vectors are determined, each disparity vector being determined between a feature identified within the first image and a corresponding feature identified in the second image. On the basis of the one or more disparity vectors, a determination is made of whether the second image of the scene is suitable for use, together with the first image, as a stereoscopic image pair.
Light source unit, control method thereof, and projection-type display apparatus
A light source unit includes a fluorescent member configured to emit, when irradiated with excitation light, fluorescence light having a wavelength different from a wavelength of the excitation light, and a controller configured to adjust a conversion efficiency from the excitation light to the fluorescence light of the fluorescent member so that a gradient T satisfies 0.35G≦T≦0.8G in a fluorescence characteristic of the fluorescent member when a horizontal axis represents a normalized light intensity of the excitation light so that a maximum light intensity of the excitation light incident on the fluorescent member is normalized to 1, and a vertical axis represents the light intensity of the fluorescence light from the fluorescence member irradiated with the normalized light intensity of the excitation light, where G represents a gradient in the fluorescence characteristic when the normalized light intensity of the excitation light is 0.3.
Projection system and projection control method
A projection system and a projection control method are provided. The projection system includes a projection apparatus and a projection data providing apparatus. After receiving projection data, the projection apparatus enters an operating mode from a sleep mode and projects an image light beam according to the projection data. The projection data providing apparatus determines whether an input operation is received, and transmits the projection data to the projection apparatus if the input operation is received.
Color separation element array, image sensor including the color separation element array, and image pickup apparatus including the color separation element array
A color separation element array includes a plurality of color separation elements arranged in two dimensions and separating an incident light according to a wavelength such that, of the incident light, a light of a first wavelength is directed to a first direction and a light of a second wavelength that is different from the first wavelength is directed to a second direction that is different from the first direction, in which each of the plurality of color separation elements includes a first element and a second element that are sequentially arranged according to a traveling direction of the incident light, and the first element and the second element of at least one of the plurality of color separation elements are shifted with respect to each other.
Method and device for viewing computer data contents associated with propulsion
A method and device for displaying computer content associated with a propulsion system, include: a standalone computer element (MO), the computer element including a display screen (4) in particular for displaying the computer content; a standalone propulsion element (PO) for moving an operator; an element for securing the computer element to the propulsion element; and an element for modifying the display of the computer content according to the movement of the operator, given that the movement of the operator takes place in a sub-aquatic environment.
Video-on-demand and targeted advertising
A method and apparatus for aggregating the data for a plurality of individualized programs into a single channel, and allocating the channel bandwidth as-needed for provision of short video programs on an “on demand” basis, so that the total bandwidth required to provide the individualized channels and associated video clips is substantially reduced. Also provided is a real-time, single-user-targeted individualized advertising associated with the viewer selection that personalizes the user's iTV experience. The advertisements are targeted in real-time based on an immediate interest revealed by the user in a search request for content. Short duration videos are provided so as not to over-tax the individualized “on demand” channel's limited bandwidth.
System and method for interactive advertising via network generated overlays
In accordance with an aspect of the present invention, a mechanism is used to enable interactive functions via network generated overlays. This invention enables network operators to launch interactive functionality without requiring changes to existing equipment that exists in the field on the client end.
Display device and display method
A control unit determines the content of a video based on an input video signal based on results of determination utilizing a monochrome determination unit and a text determination unit. Based on a display mode according to a result of the content determination, the control unit displays an image corresponding to the input video signal on a display panel.
Image processing apparatus, image processing method, program and storage medium
To enable a high-quality image process while reducing power consumption, an image processing apparatus is characterized by acquiring a plurality of image frames constituting a moving image; detecting a feature quantity of the image frame; determining the number of image frames to be used for the image process of the image frame, based on the detected feature quantity; and performing the image process to a process-object frame, by using the image frames corresponding to the determined number of image frames.
Methods and devices for video communication
The present disclosure relates to methods and devices for video communication. The methods include: configuration information of an objective terminal in video communication is obtained; a corresponding camera resolution is selected as a resolution for sampling video according to the configuration information; a video is sampled according to the resolution for sampling video; and the sampled video is sent to the objective terminal.
Emergency assistance method and device for a firearm
The present invention generally relates to an attachment for a firearm that communicates with remote device or person such as emergency services. One embodiment of the present invention is selectively interconnected to a picatinny rail, weaver rail, or other mounting means, and the embodiment includes a button that allows a user to initiate communication with emergency services without removing his or her hands from the firearm.
Device and method for processing video data
An apparatus configured to record and process video information includes a memory, display, and a processor in communication with the memory and the display. The memory is configured to store video data. The display is configured to display a preview of the video data. The processor is configured to record the video data at a first frame rate, process the recorded video data via removing one or more frames from the recorded video data, the processed video data having a second frame rate that is lower than the first frame rate, and generate the preview to be displayed by the display based at least in part on the processed video data.
Curved display apparatus for providing rear combination lamp function
A curved display apparatus and method for providing a rear combination lamp function are provided. The apparatus includes a laser scanning projector configured to project an image onto a predetermined projection area. A first reflection mirror is configured to reflect the image projected from the laser scanning projector and a second reflection mirror is configured to reflect the image reflected from the first reflection mirror. A curved screen displays the image reflected from the second reflection mirror. A controller is configured to receive data from a data detector that detects a running state, determine an image to be displayed on the curved screen from an image data list set in advance based on the received data, and operate the laser scanning projector based on the determined image.
Remote control with feedback for blind navigation
A user is provided with an indication of a button's functionality on a viewing device before the button is actually selected. The user receives haptic/tactile feedback to let the user know that they are about to select a button and that its functionality indicator is shown on the viewing device. Thus, the haptic or tactile feedback in combination with on-screen display elements is utilized in a remote control device to eliminate the need for shifting focus away from a viewing device.
Photoelectric conversion apparatus and photoelectric conversion system including pixels which generate signals by performing photoelectric conversion on incident light
In a photoelectric conversion apparatus, a signal generation circuit includes an amplification unit which generates a reference signal and which is configured the same as amplification units included in pixel output circuits, and a signal based on a reference signal is supplied to input nodes of a plurality of signal processing circuits or input nodes of a plurality of signal output circuits.
Image pickup apparatus with blur correcting function
The invention provides an image pickup apparatus with a blur correcting unit which has a display function of causing a photographer to easily confirm a photographed image. The image pickup apparatus includes photographing lens which forms an object image, a photoelectric conversion unit which is disposed on a predicted image plane of the photographing lens, a display unit which displays a photographed image obtained by the photoelectric conversion unit, an image display control unit which displays the photographed image by the display unit after the photographed image is obtained by the photoelectric conversion unit, a distance information acquiring unit which obtains distance information in the photographed image, and a blur correcting unit which performs blur correction on the photographed image based on the distance information obtained by the distance information acquiring unit. The image display control unit displays the photographed image where plural distances in the photographed image are focused.
Solid-state imaging device having plural hybrid pixels with dual storing function
A solid-state imaging device comprises a plurality of hybrid pixels. The hybrid pixel comprises a photodiode, which has a charge storage region and a photoelectric conversion region, and a transparent electrode. The transparent electrode applies a voltage to the charge storage region to modulate a potential with respect to a charge. Thereby the width of the charge storage region is reduced to form an effective charge storage region. Unless potentially modulated, the hybrid pixel functions as a normal pixel. Upon the potential modulation, the hybrid pixel functions as a phase detection pixel, which selectively stores the charge generated in a part of the photoelectric conversion region.
System and method for generating a dataset for real noise reduction evaluation
The present invention provides a system and method for generating a dataset of uncompressed color images taken with three digital cameras and exhibiting different levels of real noise, resulting from low-light conditions. For each scene there are, on average, two low-noise and two noisy images that are aligned at the pixel level both spatially and in intensity. In one embodiment, the dataset contains over 100 scenes and more than 400 images, including both 16-bit RAW formatted images and 8-bit BMP pixel and intensity aligned images from three digital cameras. The generated dataset of real noise images is useful in the evaluation of denoising algorithms.
Physical information acquisition method, physical information acquisition device, and semiconductor device
A physical information acquisition method in which a corresponding wavelength region of visible light with at least one visible light detection unit coupled to an image signal processing unit is detected, each said visible light detection unit comprising a color filter adapted to transmit the corresponding wavelength region of visible light; a wavelength region of infrared light with at least one infrared light detection unit coupled to the image signal processing unit is detected; and, with the signal processing unit, a first signal received from the at least one visible light detection unit by subtracting a product from said first signal is corrected, said product resulting from multiplication of a second signal received from the at least one infrared light detection unit and a predetermined coefficient factor.
Asynchronous readout array
An imaging device is disclosed, the device comprising a pixelated array of semiconductor elements, in which each detecting element is electrically connected to an integrated circuit, the integrated circuit comprising a passive signal path and an active signal path. The passive path provides consecutive frame imaging and the active path detects the location of transient events. The device further comprising a readout decoder block, the readout decoder block controlling operation of the passive paths. Additionally, the device comprises of an address arbitration control block, the address arbitration control block controlling operation of the active paths, wherein the address arbitration control block readout of the active paths are independent of readout of the integrated signal readout from the passive paths.
System and method for image processing and generating a body model
Images of foreground objects in a scene are generated by causing electromagnetic radiation to be emitted having a first spectral power distribution from a surface of a first foreground object, which is adjacent or at least partially obscured by a second foreground object. A first image of both of the first and second foreground objects is acquired while the first foreground object emits electromagnetic radiation with the first spectral power distribution. A second image of the first and second foreground objects is acquired while the first foreground object is not emitting electromagnetic radiation or is emitting electromagnetic radiation with a second spectral power distribution which is different to the first spectral power distribution. An alpha matte of the first and second foreground objects is generated based on a comparison of the first image and second image.
Method and device for image taking brightness control and computer readable storage medium
Embodiments of the present disclosure provide a method for controlling the brightness of a shot image by controlling an exposure parameter used when the image is taken on the basis of the distribution condition of detail features comprised in each brightness class area of an image frame in a preview image frame. The method includes the operations of acquiring a preview image frame, and determining the brightness level n of each pixel in the preview image frame; dividing the preview image frame into M class areas according to the determined brightness level n of each pixel; determining an exposure adjustment level required when the preview image frame is taken according to the distribution condition of detail features comprised in each class area in the preview image frame; and adjusting a pre-acquired exposure parameter according to the determined exposure adjustment level, and taking an image according to the adjusted exposure parameter.
Facilitating detection, processing and display of combination of visible and near non-visible light
A digital camera accesses, processes and displays a combination image composed of visible light and near non-visible (“NNV”) light. A method can include accessing, by a digital camera, raw data having first information associated with a first electromagnetic spectrum range and second information associated with a second electromagnetic spectrum range. The first electromagnetic spectrum range is substantially within the visible spectrum and the second electromagnetic spectrum range is substantially within the NNV spectrum. The method can also include optimizing the raw data for the visible spectrum, thereby generating a first visual image representation, and optimizing the raw data for the NNV spectrum, thereby generating a second visual image representation. The method can also include combining the first visual image representation and the second visual image representation to generate a combination image. The digital camera can then initiate the display of the combination image.
Information processing apparatus, information processing method, and program
There is provided an information processing apparatus including an image acquisition part configured to acquire a captured image including at least a part of a pattern projected by a projector on a projection plane, a projectable area determination part configured to determine a projectable area on the projection plane on the basis of the captured image, and a projector controller configured to control the projector in a manner that an image is projected in the projectable area.
Mobile terminal and control method for displaying images from a camera
A mobile terminal capable of sensing a touch input, and a control method thereof are provided. The mobile terminal includes: a camera unit configured to receive an image in a camera mode; a display unit configured to sense a touch input; a control unit configured to designate a region on the basis of a touch input sensed by the display unit, execute the camera mode when a region is designated, control the camera unit to capture the received image, and display the captured image in the designated region.
Modeless video and still frame capture
In an embodiment, an electronic device may be configured to capture still frames during video capture, but may capture the still frames in the 4×3 aspect ratio and at higher resolution than the 16×9 aspect ratio video frames. The device may interleave high resolution, 4×3 frames and lower resolution 16×9 frames in the video sequence, and may capture the nearest higher resolution, 4×3 frame when the user indicates the capture of a still frame. Alternatively, the device may display 16×9 frames in the video sequence, and then expand to 4×3 frames when a shutter button is pressed. The device may capture the still frame and return to the 16×9 video frames responsive to a release of the shutter button.
Techniques to selectively capture visual media using a single interface element
Techniques to selectively capture media using a single user interface element are described. In one embodiment, an apparatus may comprise a touch controller, a visual media capture component, and a storage component. The touch controller may be operative to receive a haptic engagement signal. The visual media capture component may be operative to be configured in a capture mode based on whether a haptic disengagement signal is received by the touch controller before expiration of a first timer, the capture mode one of a photo capture mode or video capture mode, the first timer started in response to receiving the haptic engagement signal, the first timer configured to expire after a first preset duration. The storage component may be operative to store visual media captured by the visual media capture component in the configured capture mode. Other embodiments are described and claimed.
Thermally conductive camera enclosure
Embodiments of the invention include devices, systems and methods for using or manufacturing a camera enclosure or mobile device that includes a thermally conductive camera module, such as having a minimum thermal conductivity of 200 watts per meter Kelvin (W/mK), that enhances heat transfer between a stiffener and cap of the enclosure. This allows heat produced by the camera to be conducted forward, away from the bottom of the stiffener, through the stiffener, and to the top of can so that the bottom of the stiffener does not heat to a high temperature, components of the device or an outer surface of a cover of the device near the bottom of the stiffener. This substantially increases the time before or avoids having the temperature of outer surface reach a high temperature, such as one that will be uncomfortable to the user. Other embodiments are also described and claimed.
Image processing face detection apparatus, method for controlling the same, and program
An image processing apparatus includes a face detection unit which detects faces from an input image, an evaluation value calculation unit which calculates an evaluation value expressing a degree of a facial expression for each of the facial expressions of the faces detected by the face detection unit, and a control unit which changes a standard for extracting an image such that an image including the facial expressions, that a small number of people have, is easily extracted, based on the number of people for each of the facial expressions of the faces detected by the face detection unit and an evaluation value for each facial expression of the face calculated by the evaluation value calculation unit.
Mobile terminal and method of performing multi-focusing and photographing image including plurality of objects using the same
The present invention provides a mobile terminal and a method of capturing an image using the same. The mobile terminal controls a camera conveniently and efficiently to capture an image and performs focusing in various manners to capture an image. Accordingly, a user can obtain a desired image easily and conveniently.
Imaging apparatus and accessory, and method and system of the same, and medium
An imaging apparatus to which an accessory is detachably attached includes an imaging unit configured to convert an object image into an electrical signal, a signal generation unit configured to generate a vertical synchronizing signal that is synchronized with a timing of exposure of the imaging unit and output the generated vertical synchronizing signal, a control unit configured to control communication with the accessory based on the vertical synchronizing signal, a first terminal configured to send a clock signal generated by the control unit to the accessory, and a second terminal configured to communicate data with the accessory based on the clock signal, in which the control unit controls a signal level at the first terminal to a predetermined level when the communication of the data ends, and then changes the signal level in synchronization with the output of the vertical synchronizing signal.
Lens apparatus and image pickup apparatus including the same
A lens apparatus includes: a movable optical member; a driving unit that drives the movable optical member; an operating unit that operates the driving unit; a first controller that derives an input value for operating the driving unit based on an operation amount of the operating unit; a second controller that corrects the input value input from the first controller to calculate a control value and outputs the control value to the driving unit; and a deriving unit that derives a matching position from the control value. When an operation from the operating unit becomes effective, the deriving unit outputs the matching position to the first controller, and the first controller sets the matching position to the input value.
Illumination device and biometric authentication apparatus
An illumination device includes M light sources provided on a surface of a substrate, a diffraction optical element configured to diffract light from the M light sources to irradiate N illuminating areas into which an illuminating region is segmented, and a control unit. The control unit turns on L=M/N light sources of each of first through Nth light source groups during first through Nth time intervals, respectively, and successively irradiates the light from the on L light sources of the first through Nth light source groups in time division onto first through N illuminating areas forming the illuminating region, where M and N are natural numbers greater than or equal to 2, and L is a natural number greater than or equal to 1.
Camera having a molding unit integrating parts and method for manufacturing the same
A camera and a method for manufacturing the camera are disclosed, the camera including parts including a lens unit formed with at least one lens for concentrating an image of an outside object, and an image sensor for converting the image of the outside object concentrated in the lens to an electric signal; and a molding unit for exposing the lens of the lens unit and for integrating the parts without any coupling seams.
Cascaded bit sequences in display systems
The present disclosure pertains to a method for designing cascaded bit sequences for cascaded digital displays. The method avoids unwanted interactions between cascaded sequences in cascaded digital displays. By using sequences with a particular structure, cascaded sequences can be designed such that no sequence is affected by the others. The following rules must be followed in constructing the sequence. First, the display devices must be frame-locked, so that the timing relationship between the sequences is maintained throughout each frame. Second, for each display device, the ratio of bit plane weights must remain constant, regardless of the pixel data displayed on the other display device(s). Third, the amount of bit plane skew must remain constant, regardless of the pixel data displayed on the other display device(s). Fourth, bit plane phased leakage must be compensated for or avoided.
Sharing images from image viewing and editing application
Some embodiments provide an image-editing application. The image-editing application uploads an image to a remote image hosting website. From the image hosting website, the application receives data that identifies the image on the remote image hosting website. The application uses the received data to identify when a user of the remote image hosting website has commented on the image. The application displays the user comments from the remote image hosting website in the image-editing application.
Determination of scan resolution based on information included in scan request
One scanner taught in the present specification may be provided with a processor and a memory that stores computer-readable instructions. The computer-readable instructions, when executed by the processor, may cause the scanner to perform: obtaining a scan request from a terminal device; determining a target scan resolution based on software-related information included in the scan request; generating scan image data having the target scan resolution; and supplying the scan image data to the terminal device. The software-related information is information relating to a software installed in the terminal device and used by the terminal device for supplying the scan request to the scanner.
Image processing apparatus, and control method and program of image processing apparatus
An image processing apparatus generates second image data having different numbers of pixels from image data having first resolution for each frame, outputs first and second image data in a first order, subjects the first and second image data to a predetermined process in a second order which is different from the first order, and controls the writing of the output image data in a memory and the readout of the processed image data from the memory by the unit of the frame, according to the first and second order. The read address in the first frame and the write address of the second frame which is subsequent to the first frame are an address of a first storage region of the memory, and the write address in the second frame is determined to be the read address according to which the first frame has been read out.
Image processing apparatus and program
An image processing apparatus includes a processor, and memory storing computer readable instructions, when executed by the processor, causing the apparatus to function as a storage destination specifying unit configured analyze original image data generated by optically reading a document, the document including a body area having information written therein, and also including a storage destination specifying area representing information for specifying a storage destination to store target image data representing a target including the body area, so as to specify the storage destination to store the target image data, and a target image data providing unit configured to provide the target image data to the specified storage destination.
Apparatus for imaging a page of a book or other similar document
The present invention relates to an apparatus for imaging a page of a book or other similar document comprising: a table defining a support plane, the book being disposed on the table such that the page to image is substantially parallel to the support plane and an other page of the book is orientated at an angle α relative to the support plane, α being between 0° and 70°; means for displacing the table parallel to the support plane along a longitudinal direction and a lateral direction and/or perpendicular to the support plane along a normal direction; a plurality of light sources, each light source producing an incident light and directing said incident light onto an inspection area of the page to image at a predetermined zenith angle θi and at a predetermined azimuth angle φi; means for sensing the light reflected by the page to image; at least one control unit adapted to control said displacing means, said light sources and said sensing means; wherein the light sources are fixedly connected to a main frame, said main frame defining a partially or fully hemispherical dome;wherein said main frame comprises a first module and a second module, said second module being detachably connected to the first module at a first end thereof, said first end defining a plane that is obliquely orientated at an angle β relative to the support plane; andwherein, when the second module is disconnected from the first module, a free space between the first end of the first module and the support plane is adapted to permit the movement of the table and the book in the longitudinal and lateral directions without coming into contact with the main frame.
Image capture unit and computer readable medium used in combination with same
An image capture unit and computer readable medium used in combination therewith includes an image capturing sensor, a visual display, an instance of the computer readable medium, and circuitry for integrating functionalities thereof. The computer readable medium causes sensor data received from the image capturing sensor to be processed. The sensor data includes a plurality of image tiles and position indicating data defining a respective relative position of each one of each image tiles. Each one of each image tiles includes data representing a discrete portion of visual content. The computer readable medium causes a feedback image be displayed on the visual display. Displaying the feedback image includes correlate the relative position of each one of each image tiles with at least one other image tile that has been previously generated and displayed.
Image forming apparatus and image forming method that adjust faint character and thin line when function is set to off
Provided is an image forming apparatus that adjusts a thin character, a thin line, or the like, which are read in a manuscript, to become identifiable. The blank paper removing part, when the function is set to ON, removes the image data corresponding to the manuscript detected as a blank paper by the blank paper detecting part. The faint character mode part extract a character from the image data and performs faint character adjustment for the data of the extracted character. The control part, in case that the blank paper removing part is set as OFF, if detected a blank paper by the blank paper detecting part, makes perform image processing accompanied with the faint character adjustment by the faint character mode part to the image processing part.
System and method for document size detection in a document reproduction device
What is disclosed is a system for determining the size of a document on a platen of a document scanning device. In one embodiment, the scanning device comprises in part: a transparent pane (platen) whereon a hardcopy print is placed; a scan head comprising optical sensors which output a signal comprising an image of that hardcopy print; a plurality of LEDs positioned such that a topside of the platen is illuminated; and a processor for instructing the scan head to pre-scan the print. During the pre-scan, optical sensors comprising the scan head sense light from the LEDs of areas of the platen not covered by the hardcopy print at a first intensity and sense light from the LEDs of areas of the platen which are covered by the print at a second intensity. The processor determines the size of the hardcopy print from the first and second intensity levels.
Information sharing system, information sharing method, and connecting device
In the present invention concerning an information sharing system, a connecting device sets a destination to share information. The connecting device communicates with a terminal device by wireless communication, and performs authentication of the terminal device, which obtains a captured image by capturing an image of a subject, and transfers the captured image received from the authenticated terminal device to the destination, and then generates display information for displaying the captured image. The connecting device transmits the generated display information to a display sharing device, which displays thereon a screen based on information acquired through communication.
Pull printing system that reduces communication traffic volume relative to server computer and management burden of device
A pull printing system according to one aspect of the disclosure includes a server computer, a manager image forming apparatus, and a client image forming apparatus. The manager image forming apparatus includes a manager-side print execution unit that executes a print job received to a first port number, a job management unit that manages the print job received to a second port number different from the first port number in association with the user, and a job transmitting unit. The job transmitting unit transmits the print job associated with a user authenticated by the server computer to the client image forming apparatus among the print job managed by the job management unit.
Application-specific mobile data allocation
Mobile devices may obtain applications from an application market infrastructure. The applications may consume data from a data allocation that has been purchased from a mobile data provider. A user may assign a sub-allocation of the data allocation with a specific application, for use by the application. When the sub-allocation is depleted, the application may alert the user and also give the user an opportunity to purchase additional data. If the user accepts an offer to purchase additional data, the application calls the application market infrastructure to process a purchase transaction for the additional data. The application market infrastructure interacts with the user to complete the transaction and then instructs the mobile data provider to allocation additional data to the mobile device of the user, which is then added to the sub-allocation associated with the application.
System and method for providing contact center services in a hybrid operations environment
A system and method for providing contact center services in a hybrid operations environment. A first controller in a first operations environment is configured to receive a first message for establishing a media session, and transmit a request for media service. A media controller in a second operations environment is configured to provide media to a target device during the media session in response to the request; receive during the media session a second message from the first controller; and control the media based on the second message from the first controller.
Method and system for determining occupancy of resources in a multimodal contact center
A method and system for determining occupancy of an agent in a multimodal contact center are provided. The method includes monitoring, by a processor, a plurality of multimodal contacts simultaneously handled by an agent. For each contact of the plurality of multimodal contacts, a media capability of a contact may be determined and one or more parameters based on the media capability and the agent may be determined. A multimodal occupancy score for the agent based on the one or more parameters for each of the plurality of multimodal contacts.
Systems and methods for scoring phone numbers
Certain implementations of the disclosed technology include systems and methods for determining a reachability score of a phone number. A method includes receiving personally identifiable information associated with the subject; querying one or more public or private databases with the personally identifiable information; receiving, in response to the querying, phone number information related to the personally identifiable information; extracting, from the phone number information, one or more phone numbers associated with the subject; determining, with one or more computer processors, based at least in part on the one or more phone numbers, a phone type corresponding to the respective one or more phone numbers; determining, with the one or more computer processors, a reachability score for at least one of the one or more phone numbers, wherein the reachability score is based, at least in part, on the phone type; and outputting an indication of the reachability score.
System, method, and computer readable medium for establishing communication between devices
A system, method, and computer readable medium for establishing communication between two devices comprises connecting, by a first computer, to an open source Private Branch Exchange (PBX) platform via a port, receiving a phone number sent by a first one of the two devices at the open source PBX platform, invoking an interface module by the open source PBX platform, where the interface module resides on the open source PBX platform, and building a Calling Name request by the interface module related to the received phone number.
Pre-authentication system and method for outgoing communication
An automated calling system authenticates and subsequently communicates via a telephone network with a person such as a current or prospective customer. The communication may be in regards to an account having an adverse account status (e.g. a payment delinquency, an overdrawn checking account, being over the credit limit on a credit card, excessive transactions on one account, suspicious or fraudulent transactions on an account, and so on).
Personal allowed number system
A system and method for preventing or facilitating communications between individuals who reside in detention environments (such as e.g., prisons or correctional facilities) and individuals who are not in such detention environments using an automated authentication or verification.
Testing audio quality associated with a user device during a double talk communication
A device may provide a baseline uplink audio signal and a baseline downlink audio signal to create a double talk communication for a user device. The device may receive an audio signal, transmitted by the user device, based on providing the baseline uplink audio signal and the baseline downlink audio signal. The device may determine a score based on the audio signal. The score may indicate an effectiveness of the user device with regard to processing audio associated with the double talk communication. The device may provide information that identifies the score to indicate the effectiveness of the user device with regard to processing audio associated with the double talk communication.
Combined type accessory system and combined type accessory thereof
A combined type accessory for communications connection with a mobile terminal may include a power supply module, a control module and a function module. The control module and the power supply module can be detachably connected. The function module and the control module can be detachably connected. The power supply module can supply power to the control module and the function module, and the mobile terminal can be in communications connection with the control module so as to control the function module. Embodiments of the present invention further provide a combined type accessory system. The combined type accessory system and the combined type accessory can form various accessories through a variety of combinations, provide abundant applications of the mobile terminal, and result in convenience for people's life.
System and method of contact identification dissemination
A system and method are presented for contact identification dissemination among devices within a hybrid cloud distributed system. Information associated with a first party device is provided to a cloud managed telephony network appliance. The appliance communicates with a cloud application and is capable of communication with any other appliances which may be associated with a second party device, if that appliance is not already associated with the second party device. Information between the components in the system may be asynchronously updated in order to provide first party information and more granular matches.
Housing features of an electronic device
An enclosure and a method for forming an enclosure are disclosed. The enclosure may be formed from metal, such as aluminum, and further include a non-metal portion allowing for transmission and receipt of electromagnetic waves. The non-metal portion may be interlocked to the enclosure and in particular, to a region within the enclosure including a first material having a relatively high strength and stiffness compared to the non-metal portion. Interlocking means may include forming dovetail cuts into the enclosure to receive the non-metal portion, a hole or cavity drilled into the enclosure which includes internal threads, and a rod inserted into the first material to provide a tension to the non-metal portion. Methods of assembling internal components using anodization are also disclosed.
Communication apparatus, communication system, communication method, and program for improved data transfer efficiency
A communication apparatus includes a physical layer to perform signal transmission/reception with another communication end, and a protocol conversion section (PCL) to connect an upper level user application and the physical layer. The protocol conversion section includes a parameter extraction section to extract a prescribed parameter from communication start request data (CBW) transmitted from the user application, and a header addition section to add a header containing the extracted parameter to transmission data transmitted from the user application, and the physical layer transmits the transmission data with the header.
Method and system for data demultiplexing
A method and system for demultiplexing packets of a message is provided.The demultiplexing system receives packets of a message, identifies a sequence of message handlers for processing the message, identifies state information associated with the message for each message handler, and invokes the message handlers passing the message and the associated state information. The system identifies the message handlers based on the initial data type of the message and a target data type. The identified message handlers effect the conversion of the data to the target data type through various intermediate data types.
Message batching in a distributed strict queue
Methods and systems for implementing message batching in a distributed strict queue are disclosed. A plurality of messages are distributed to a plurality of queue servers based on strict order parameters for the messages. Messages that share a value for the strict order parameter are distributed to the same queue server. The messages are enqueued at the queue servers. Messages that share a value for the strict order parameter are enqueued in a strict order based on the time of receipt at the queue server. A batch comprising individual messages is sent to a queue client. The messages that share a value for the strict order parameter are batched in the strict order.
Tiered framework for providing remote access to an application accessible at a uniform resource locator (URL)
Method and systems of providing remote access to an application in a tiered remote access framework that includes a server tier and a client tier. In the server tier, an application that is remotely accessed and a server remote access application execute on a server. In the client tier, a client remote access application executes on a client device. A server SDK may be associated with the application in the server tier, where the server SDK being adapted to communicate display information to the client tier. A client SDK may be associated with a client application executing on the client device, where the client SDK receives the display information from the server tier. The client device connects to the server at an enumerated Uniform Resource Locator (URL) to initiate the reception of the display information.
Method and apparatus for cached content delivery to roaming devices
In one aspect, the method and apparatus disclosed herein enable a high-quality content viewing experience for users viewing user-specific content via their mobile devices operating within a mobile communication network, based on intelligently caching the content in the network using one or more distributed caches. For example, in one or more embodiments, a cache management server dynamically manages the distribution of user-specific content to one or more of the distributed caches, based on known or expected user locations, so that the content resides in the distributed cache or caches closest to the user locations.
Mobile push notification
In one embodiment, a method includes receiving a first notification through a real-time push service. The first notification includes a subset of user-facing information of an object having one or more states, the subset being determined at a first point in time. A second notification is received through the real-time push service. The second notification is an update to the user-facing information of the object, and the update may be a subset of user-facing information determined at a second point in time after the first point in time.
Content preview generation using social network analysis
Disclosed is a system and method for generating a preview of a digital content item using social network analysis. Members of a social network who acquire the digital content item may identify interesting portions of the digital content. When a member of the social network requests a preview of the digital content item, typically in anticipation of an acquisition of the digital content item, the interesting portions of the digital content item identified by fellow social network members are considered in the generation of the preview. Selection of the interesting content for preview may include more identified content, as well as social network relationship and role magnitudes. The digital content item may include: text, such as books or articles; multimedia such as audio/video; and interactive, such as games or virtual worlds.
Display of information in electronic communications
Among other disclosures, a method may include collecting historical communication data and personal data relating to a portion of a plurality of communications, a sender of one or more of the communications or one or more recipients of the communications. The method may include depositing the collected data into a repository of historical communication data and personal data. The method may include customizing an electronic communication based on one or more items in the repository, in response to user behavior.
Method and apparatus providing connection recovery for a chat client
A method, apparatus and computer program product for providing connection recovery for a chat client is presented. A chat session connection is established between a chat client and a server. Heartbeat messages are exchanged between the chat client and the server at predetermined time intervals. When a failure to receive a heartbeat message for longer than one of the predetermined time intervals, then a lost connection message is provided to at least one of the server and client. Messages for client are queued at the server while the connection is lost; and messages for the server are queued at the client while the connection is lost. If the connection can be re-established the queued messages are sent, otherwise the session is terminated.
Method and apparatus for managing sessions of different websites
A method, apparatus, and/or computer program product manages sessions of different websites. Respective session identifiers of a plurality of websites are recorded, where each of the respective session identifiers of the plurality of websites identifies a session established in response to a page open operation for a respective website, and where pages of the plurality of websites are integrated into one page on one website. An operation request for a page of a first website of the plurality of websites is received. In response to receiving the operation request, a session synchronization request message that requests that a session of the first website be synchronized with sessions of the plurality of websites is generated and transmitted from the first website to other websites from the plurality of websites.
Cloud storage for mobile devices based on user-specified limits for different types of data
Techniques described herein may enable users to manage the division of storage, for multiple applications and on a per-content type basis, between cloud storage and local storage. A mobile device may receive user preference information relating to storage limits, each of the storage limits being applicable to an aggregate amount of data, of a particular content type, and associated with a number of applications executed by the mobile device. The mobile device transfer data, to and from cloud storage, to enforce the storage limits included in the user preference information.
Presenting a source presentation
For presenting a source presentation, a synchronization module synchronizes a client time code with a host time code. A response module records a response to the presentation of a source presentation at a client. The recorded response is synchronized to the host time code.
User location-based management of content presentation
Features are disclosed for managing presentation of content to improve the content consumption experience as a user moves around or when there are multiple users. Based on user positions within a content consumption location and optionally on the layout of the location, presentation of content can be adjusted. The volume of audio content may be raised or lowered based on a user's position. Audio or visual content can be paused or stopped if a user leaves the location or the user's view is obstructed. When multiple users are consuming a content item, one or more users may have priority and any adjustment may be made to first improve the experience of the priority user. In some cases, no user has priority, and adjustments may be made to improve the experience of many or all users.
Updating error recovery information in a dispersed storage network
A method begins with a set of storage units of a dispersed storage network (DSN) receiving a plurality of read requests for encoded data slices corresponding to particular content data. The method continues with a first storage unit detecting that a corresponding portion of the plurality of read requests exceeds a heavy load condition for the first storage unit. The method continues when the corresponding portion of the plurality of read requests exceeds the heavy load condition for the first storage unit with the first storage unit identifying a first alternative storage unit of the DSN. The method continues with the first storage unit sending a copy of the first group of encoded data slices to the first alternative storage unit and redirecting some of the corresponding portion of the plurality of read requests to the first alternative storage unit for processing.
Methods and apparatus for allocating cloud-based media resources
A method for allocating a cloud-based media resource, comprising: receiving a cloud-based media task request with at least one parameter from a task requester; calculating a second integrated utility value by utilizing the at least one parameter; comparing the second integrated utility value with a first integrated utility value; determining whether to allocate the cloud-based media resource to the task requester according to a result of comparison. An apparatus for allocating a cloud-based media resource according to the present technology is also provided. In some illustrative embodiments, from the view of the utility improvement of cloud-based media services, an objective function is no longer a minimized response time but a maximum utility, and thus the satisfaction of cloud users can be significantly increased.
Scripting of SOAP commands
A computer-implemented method processes a simple object access protocol (SOAP) command. The method includes interpreting an XML script to perform a function contained in the XML script, the XML script containing the SOAP command, parsing the SOAP command from the XML script, and passing the SOAP command to a SOAP interpreter for execution.
Method and apparatus for dynamic provisioning of communication services
An approach is provided for determining a cloud provider identifier associated with a request to provision one or more communication services. The approach further involves validating the request by matching the cloud provider identifier against another copy of the cloud provider identifier associated with a session over which the provisioning request was received.
Parallel community detection
Various embodiments are directed to techniques for countering oscillation in community assignments of nodes in a network during detection of its communities. A computer-program product tangibly embodied in a non-transitory machine-readable storage medium includes instructions operable to cause a computing device to derive a first connectedness metric of a first community to which a first node of a network belongs and a second connectedness metric of a second community to which a second node of the network belongs in parallel in an iteration of parallel detection of communities in the network, wherein the first and second nodes are connected in the network; randomly pin the first node to prevent its reassignment to another community during the iteration; compare the first and second connectedness metrics during the iteration; and reassign the second node from the second community to the first community based on the comparison. Other embodiments are described and claimed.
Transferring applications between computer systems
According to one aspect of the present disclosure, a processor accesses target information associated with a target computer system, the target computer system being a candidate computer system for transferring execution of an application. The processor accesses first information associated with a first computer system, the first computer system storing a first state of the application. The processor also accesses second information associated with a second computer system, the second computer system storing a second state of the application. The processor selects a transfer computer system from which to transfer the state of the application to facilitate transfer of execution of the application, the transfer computer system selected from the first computer system and the second computer system based at least on the first information, the second information, and the target information.
System and method for providing a content distribution network with data quality monitoring and management
The present disclosure relates to a system and method for providing a content distribution network. In an embodiment, the system and method helps organizations share content as a content source, and manage multiple feeds of content from various other content sources, keeping specific information private while integrating shared updates. For example, the content may be local business information kept by numerous different organizations for their own locality. By sharing this location information through a shared content distribution network, the organizations are able to update the location information of their users and obtain a higher quality of data. In an embodiment, an organization may prioritize the content in a private feed in order to override crowd sourced external data. The network, system and method further includes one or more tools or features for monitoring and managing data quality.
Computer-implemented method, computer system, and computer program product for synchronizing output of media data across a plurality of devices
A computer-implemented method, a computer system, and a computer program product for synchronizing output of media data across a plurality of devices is provided. The computer-implemented method for synchronizing output of media data across a plurality of output devices may include providing a communication network between a media server and a plurality of output devices; and synchronously outputting media data files on the plurality of output devices, wherein the media data files are transmitted to the output devices from the media server in form of a data stream over different delivery networks.
Dynamic session monitoring in secure media-based conferencing
Methods and apparatuses, including computer program products, are described for monitoring conference session resources in a media-based conferencing system. A server computing device establishes a connection to media engines hosting in-process conference sessions. The server periodically captures system level information, application level information, and meeting size associated with each of the conference sessions. The server determines a session state associated with each of the conference sessions, and determines a pool of available computing devices to provide resources to the conference sessions. The server allocates available computing devices to the in-process conference sessions based upon the session state and periodically reports the session state and the pool of available computing devices to a network API module, which determines a routing for subsequent communication session requests based upon the reported session state and pool of available computing resources.
Feature set differentiation by tenant and user
A system for online collaboration includes an application for online collaboration, the application including an application feature set, a control module programmed to receive a request from a user to access a tenancy associated with the application on the system, the tenancy including a site provisioned for a tenant, the request including a tenancy identifier identifying the tenancy and a user identifier identifying the user, the control module using the tenancy identifier to identify a tenancy feature set associated with the tenancy, and the control module using the user identifier to identify a user feature set associated with the user, and a web-page render module programmed to generate a collaboration web site including a site feature set including the tenancy feature set and the user feature set, the web site being sent to the user for rendering on the user's computing device.
Distributed audio mixing and forwarding
A scalable media conferencing system minimizes delay while maintaining a consistent session across all of the distributed media servers handling the conference session. Each of the media servers sends a list of the local top streams and their importance. A global list of top streams is created and disseminated to all of the media servers. Each of the media servers then forwards any local stream that is on the list of global top streams to all of the other media servers. Once a media server receives all of the streams on the list of global top streams, it locally mixes the streams together and outputs the mixed stream to the endpoints that are locally connected to that media server.
Method and gateway device for managing address resource
Embodiments of the present invention disclose a method and a gateway device for managing an address resource, which relate to the field of Internet technologies and can maximally reduce horizontal traffic between gateway devices, thereby improving system performance. The method in the present invention includes: sending an address delegation request message to a management gateway device in a same gateway group, where the management gateway device is configured to manage an address pool(s) or an address in an address pool; receiving a response message sent by the management gateway device, where the response message includes a delegated address, and the delegated address is an address in the address pool(s) managed by the management gateway device; acquiring the delegated address in the response message; and allocating an address in the delegated address to a user terminal in a same user group. The present invention is used for managing the address resource.
Visualization and analysis of complex security information
In one example, a visualization data engine may be responsible for rendering the visualization data obtained from the backend data server and providing the user interface (UI) necessary to allow an administrator to analyze the data. An example UI may include the ability to filter, organize, reorganize, and choose the raw data to be transformed. The UI may also provide interactions that expand and compress sections of the dataset, drill into the underlying dataset that is represented to the user, and move the data from one visualization to another.
Advanced asset tracking and correlation
A security management system may be remotely deployed (e.g., using a cloud-based architecture) to add security to an enterprise network. For example, the security management system may scan assets within the enterprise network for vulnerabilities and may receive data chunks from these scans. The security management system may also receive data chunks from other sources, and, as a result, the system may handle data chunks having many different formats and attributes. When the security management system tries to associate data chunks to assets, there may not be a globally unique identifier that is applicable for all received data chunks. Provided in the present disclosure are exemplary techniques for tracking assets across a network using an asset correlation engine that can flexibly match data chunks to assets based on the attribute or attributes that are available within the data chunks.
IP-free end-point management appliance
An aspect includes a method of receiving a management command in an appliance to configure a network security policy, where the appliance is connected to a network end-point device. The method includes receiving a packet from a security device. Checking is performed to determine whether the packet includes a specific identifier. Upon a determination that the packet received includes a specific identifier, the management command is retrieved from a payload of the packet to configure the appliance.
Breach detection-based data inflation
A method and apparatus for deterring exfiltration of data from are provided. In the method and apparatus, it is determined that data is to be inflated. A request for access to data is received and data responsive to the request is retrieved. Spurious data is also generated and provided together with the responsive data in response to the request.
Computer defenses and counterattacks
A method includes instantiating a first detection agent based on detection criteria, where the first detection agent includes first program code executable by a second computing device to monitor network activity. The method further includes sending the first program code of the first detection agent to the second computing device for execution. When the first program code of the first detection agent is executed at the second computing device, the first detection agent causes network activity data to be transmitted to a network monitor, and the network monitor updates the detection criteria based on the network activity data to generate updated detection criteria. The method also includes instantiating a second detection agent based on the updated detection criteria and sending second program code of the second detection agent to the second computing device for execution.
Zero day threat detection using host application/program to user agent mapping
A technique allows associating host applications and user agents in network traffic and detecting possible malware without relying on signatures of the user agents. A database of host applications and user agents is maintained, allowing automatic update of the database when a new application or new application to user agent mapping is discovered. Partial matches may be made when a change is made to the application, allowing learning the new mapping automatically. If an application is associated with more than a threshold number of user agents, an indication may be generated that the application is suspicious and possibly malware.
Assessing security risks associated with connected application clients
A method for assessing security risks associated with a cloud application to which one or more connected applications are coupled begins by configuring a security risk assessment application to function as a connected application. The security risk assessment application collects “first” data associated with one or more accounts, and “second” data associated with the one or more connected applications coupled to the cloud application. After receiving the first and second data, the security risk assessment application instantiates that data into a generic “data object” that the system uses to represent each account and each of the connected applications. Each such data object thus is populated either with the first data or the second data, depending on whether the data object represents an account or a connected application. A risk assessment is then applied to the generic data object to assess a security risk associated with the cloud application.
Capturing correlations between activity and non-activity attributes using N-grams
Identifying correlations between events recorded in a computer system log, the recorded events are generated by a plurality of processes executing on the computer. A system log is partitioned into a plurality of segments, each segment associated with a characteristic found in an event, each segment including one or more events having a same characteristic value. A plurality of attributes of the events in a segment are selected. The attributes selected do not describe an action of the event. One or more distinct n-grams are generated, each distinct n-gram including the selected attributes from successive events within the segment. A distinct n-gram is distinct from all other generated n-grams. A correlation is identified for each first selected attribute of each successive event of an n-gram with all other second selected attributes from each successive event of the n-gram, and the correlations are recorded for each first selected attribute.
Dual-path distributed architecture for network security analysis
A security platform employs a variety techniques and mechanisms to detect security related anomalies and threats in a computer network environment. The security platform is “big data” driven and employs machine learning to perform security analytics. The security platform performs user/entity behavioral analytics (UEBA) to detect the security related anomalies and threats, regardless of whether such anomalies/threats were previously known. The security platform can include both real-time and batch paths/modes for detecting anomalies and threats. By visually presenting analytical results scored with risk ratings and supporting evidence, the security platform enables network security administrators to respond to a detected anomaly or threat, and to take action promptly.
Data access verification for enterprise resources
According to one embodiment, a method in a computing device for responding to a determination that a verification with a user is desired responsive to detection of activity indicative of a possible insider threat is described. The method includes selecting a target role and a target user for the verification based on an activity context and an enterprise context repository, the selecting including selecting the target role from a plurality of target roles based on the activity context and optionally the enterprise context repository and selecting a target user in the selected target role based on the enterprise context repository. The method further includes causing a verification request to be sent to the selected target user; and generating an alert when a verification result indicates that the activity is indicative of the possible insider threat.
Systems and methods of precision sharing of big data
An ecosystem that allows fine-grained multi-party control over access to information stored in one or more data sources of a data provider. A requesting party can submit a query job to the data provider. Resellers in the chain can introduce their own query modifiers to the query job, adding additional data access, data transformation and segmentation functions to the query job. The data provider can append its own query modifier to the query job and execute the query job with all of the query modifiers. Access control for each link in the chain is checked before the query modifier for the link is executed. After execution of all query modifiers and the query job, the results can be provided to the requesting party.
Data access and anonymity management
Techniques described herein provide data access and data anonymity management within various implementations of content distribution networks. In some embodiments, a data anonymity management system may include multiple different data stores configured to store identity data, user data, and/or linking data, as well as a data anonymity server configured to support data anonymity features such as active user data anonymity, one-way linking and permanently breakable links between user identity data and associated user data. In some embodiments, storage systems and techniques may be used for storing identity data, user data, and link data in multiple different data stores, with different data storage requirements and different processes and policies for data availability, data backup, online disaster recovery, offline storage archiving, and the like. Additionally, cryptographic hash functions may be used to implement one-way encryption between identity data and user data.
Dynamic distribution of authentication sessions
This disclosure relates to authenticating and providing transport security over unsecured IP networks to network subscribers. The system includes an authentication service that authenticates network subscribers. The authentication service can dynamically define expiry times for network authentication.
Local user authentication with neuro and neuro-mechanical fingerprints
In accordance with one embodiment, a method for locally verifying the identification of a user with an electronic device is disclosed. The method includes regenerating a neuro-mechanical fingerprint (NFP) in response to a micro-motion signal sensed at a body part. In response to a plurality of authorized user calibration parameters, a match percentage of the neuro-mechanical fingerprint is determined. The match percentage is determined without the use of a calibration NFP that was previously used to generate the user calibration parameters. Access to the electronic device and its software applications is then controlled by the match percentage. If the match percentage is greater than or equal to an access match level, access to the electronic device is granted. If the match percentage is less than the access match level, access is denied. Subsequent access requires further regeneration of the NFP and a determination of its match percentage in response.
System, method, and device for delivering communications and storing and delivering data
A system, method, and device includes a platform data storage that stores a wrap that secures an executable controller and executable sensors. The wrap is verified, optionally through a downloaded authentication driver. After verifying the wrap, the wrap is opened and a sister of the executable controller is installed into the platform memory to cooperate with the executable controller. Additionally or alternatively, the authentication driver may cooperate with the executable controller. The executable controller allows the platform processor to access data secured in a vault and/or verify the platform to create a connection to an application server.
Efficient network layer for IPv6 protocol
An electronic device may include a network interface that may enable the electronic device to wirelessly couple the electronic device to other electronic devices. The electronic device may also include a processor that may determine at least one data path to the other electronic devices using a Routing Information Protocol—Next Generation (RIPng) routing mechanism. After identifying at least one data path to the other electronic devices, the processor may determine whether the identified data path(s) is secure using a Datagram Transport Layer Security (DTLS) protocol. If the identified data path(s) is determined to be secure, the processor may send Internet Protocol version 6 (IPv6) data packets to the other electronic devices via the secure data path(s).
Communication apparatus, communication system, and recording medium
A communication apparatus includes a communication unit that connects with an external device in a one-to-one relationship, the external device storing certificate information required for connection with a network; an acquisition unit that acquires the certificate information from the external device connected with the communication unit; and a connection request unit that sends a request for connection with the network to a communication management device, the request including the certificate information acquired by the acquisition unit, so that the communication management device determines whether to permit the connection with the network in response to the request received from the communication apparatus.
Environment-aware security tokens
The technology described in this document can be embodied in a computer implemented method that includes receiving, at a processing device, information about one or more assets associated with a network of devices. The method also includes generating, for at least one of the assets, a security token that is based at least on a portion of the received information about the corresponding asset. The security token can be configured to identify a home network defined for the asset, and to restrict access to the corresponding asset upon detecting an occurrence of an unauthorized activity involving the asset. The method further includes storing, in a storage device, information about the security token and information linking the security token to the corresponding asset, and initiating integration of the security token with the corresponding asset.
Identity verification services using private data
A method includes receiving a request, from a client, to verify that an operator of the client is a purported individual. The request includes a personal identifier associated with the purported individual. The personal identifier corresponds to an account established by the purported individual. The account is provided by a cloud service provider. The method also includes transmitting the personal identifier to the cloud service provider. The method further includes, in response to transmitting the personal identifier, receiving private data indicative of the purported individual's usage of the account. The method still further includes creating an identity assessment based on the private data; The method even further includes receiving an evaluation of the identity assessment from the operator of the client. The method additionally includes determining, based on the evaluation of the identity assessment, whether the operator of the client is the purported individual.
Methods and apparatus for transacting with multiple domains based on a credential
In one embodiment, a method includes receiving from a credential a credential-owner authentication information associated with an identity of an individual. A issuer validation information associated with an issuer of the credential is also received. The method also includes providing a plurality of options, including a first option associated with a first domain and a second option associated with a second domain mutually exclusive from the first domain. The method also includes sending to a portion of the first domain the credential-owner authentication information and the issuer validation information in response to the first option being selected.
Reducing authentication confidence over time based on user history
Technologies are provided in embodiments to manage an authentication confirmation score. Embodiments are configured to identify, in absolute session time, a beginning time and an ending time of an interval of an active user session on a client. Embodiments are also configured to determine a first value representing a first subset of a set of prior user sessions, where the prior user sessions of the first subset were active for at least as long as the beginning time. Embodiments can also determine a second value representing a second subset of the set of prior user sessions, where the prior user sessions of the second subset were active for at least as long as the ending time. Embodiments also determine, based on the first and second values, a decay rate for the authentication confidence score of the active user session. In some embodiments, the set is based on context attributes.
GPS-enabled cross-domain guard
A method for routing of information between networks of differing security levels may include, but is not limited to: receiving a data packet from a first network having a security classification at a first network node; determining a geographic location of the first network node; applying one or more geographic location-dependent access control rules for the data packet according to the geographic location of the first network node with a guard engine; transferring the data packet to a second network according to compliance of the data packet with the one or more geographic location-dependent access control rules.
System and method for key management for issuer security domain using global platform specifications
Disclosed herein are systems, methods, and non-transitory computer-readable storage media for key management for Issuer Security Domain (ISD) using GlobalPlatform Specifications. A client receives from a server an authorization to update a first ISD keyset. The client encrypts, via a client-side secure element, a second ISD keyset with a server public key. The client sends the encrypted second ISD keyset to the server for updating the first ISD keyset with the encrypted second ISD keyset. Prior to updating, the client generates the first ISD keyset at a vendor and sends the first ISD keyset to the client-side secure element and sends the first ISD keyset encrypted with the server public key to the server. The disclosed method allows for updating of an ISD keyset of which only the client-side secure element and a server have knowledge.
Using cookies to identify security contexts for connectionless service
A mobility management entity (MME) receives a request for a key to establish a security context for communication between a base station and a user equipment in response to the user equipment requesting connectionless service with the base station. In response to receiving the request, the MME transmits a cookie to identify the security context stored by the base station.
Automated security provisioning protocol for wide area network communication devices in open device environment
An automated security provisioning protocol is provided for wide area network communication devices in an open device environment, such as cellular communication devices in a machine-to-machine (M2M) environment. For example, a method for performing a security provisioning protocol between a first communication device and a second communication device over at least one wide area communication network comprises the following steps from the perspective of the first communication device. The first communication device automatically uses access information not previously provisioned in the wide area communication network to gain access to the wide area communication network for an initial purpose of communicating with the second communication device. The first communication device, upon gaining access to the wide area communication network, automatically performs an authenticated key exchange operation with the second communication device over the wide area communication network and establishes a secure communication key as a result of the authenticated key exchange operation for subsequent use by the first communication device for secure communications. The wide area communication network is operated by a first entity and the second communication device is operated by a second entity.
Secure file transfer
The present disclosure describes techniques for storing encrypted files in a secure file repository and transferring those encrypted files to one or more recipients. A user selects a file to upload to a secure file repository. A secure collaboration app on the user's device generates a first encryption key that is used to encrypt the file. The encrypted file is then uploaded to the secure file repository, which provides the secure collaboration app with a random file name and a location of the encrypted file. The secure collaboration app updates locally stored metadata of the first encrypted file. To securely transfer the file, the user generates a second encryption key, encrypts the metadata with the second encryption key, and transmits the encrypted metadata to one or more receivers. The one or more receivers decrypt the encrypted metadata and use the decrypted metadata to retrieve the file and decrypt it.
Embodiments of the present invention disclose a method, system, and computer program product for bluesalt security. A computer receives a confidential data configuration wherein specific sensor are assigned to specific confidential information. The assigned sensors are measured for values as a system administrator enters a password corresponding to the confidential information. The measured values are converted into a salt and concatenated with the password to generate a primary key. The primary key is used to encrypt the confidential information, then the primary key is encrypted using a secondary key comprised of a second password with a second set of sensor information as the salt. The encrypted key is saved securely while the secondary key is destroyed. In order to decrypt the confidential information, a user must replicate the password and sensor values to generate the primary or secondary key.
Methods and systems for providing information relating to an event
An organizer may send information relating to an event to participants via text messaging without having participants' texting numbers. Particularly, organizer may be associated with a texting number. Organizer sets event's start/end times, and provides email addresses for event invitees. Email requests invitees' texting numbers to participate in event. Texting numbers are stored, and encrypted respectively as identifiers. Organizer's message for participants is sent as text message to participants' texting numbers between event's start/end, and may be sent as if the message originated from organizer's texting number. When event ends, participants' texting numbers are deleted unless a participant participates in organizer's later ending event. In response to invitation to organizer's later event, a received participant's texting number may be encrypted as later identifier, and compared with identifier from earlier event. If a match, organizer's text message sent to participant during prior event is included in organizer's or participant's conversational history.
Lossy data stream decoder
Lossy data stream decoder techniques are described herein. In response to a request for decoded content from a consuming application, a decoder may validate headers and identify portions of the data that are considered pertinent to the request. The decoder then performs lossy extraction to form incomplete data that is provided to the consuming application in response to the request. The full data for the data stream is not exposed to the consuming application or other downstream components. In this way, the consuming application is provided data sufficient to perform requested graphics processing and resource management operations, while at the same time the risk of piracy is mitigated since the consuming application is unable to get a full version of the data in the clear and the data have been validated by the decoder.
One-time pad communications network
A system and method for providing secure and anonymous communication between a plurality of individuals relying on the cryptographic method of the one-time pad (OTP) is described. Unique, randomly generated blocks of data are generated to serve as one-time pads, and each is given a unique identification that serves as a system address. One-time pads are anonymously distributed to communicants with a copy of each being retained by a service provider that operates a One-Time Pad Hub. Messages may be exchanged among holders of one-time pads through the Hub using the identifier addresses.
Confidential message exchange using benign, context-aware cover message generation
Systems and methods are disclosed permitting a sender to send a secret and secure message to a recipient. An application on a sender device interfaces with known message generating tools to permit a user to generate a message. The local application encrypts the message (and optional attachments) based on public/private key pairing negotiated with the server given the recipient device id. The sender device transmits the cipher text to the server. The server generates a benign, text-based, context-appropriate message and delivers same to a recipient device by way of a known messaging service. The benign message provides a secret clue to the recipient that an encrypted message is available. Recipient may then access and decrypt the encrypted message, such as from the server in response to a successful challenge (e.g., password request).
CCN routing using hardware-assisted hash tables
One embodiment provides a system that facilitates forwarding of packets with variable length names. During operation, the system receives a packet with a hierarchically structured variable length identifier (HSVLI) which comprises contiguous name components ordered from a most general level to a most specific level. The system performs a longest prefix match lookup by selecting an entry from a first data structure of entries. The entries indicate a name component, forwarding information for the name component, and a plurality of entry identifiers that chain an entry to another entry. If a size of the name component is less than or equal to a predetermined threshold, the system selects an entry based on the name component. If the size is greater, the system selects an entry based on a compressed key which can be a hash of the name component. The system also resolves collisions associated with the selected entry.
End to end email monitor
A disclosed example method to monitor an email system involves sending a first test email from a first email system to a second email system. The first test email is addressed to a first destination email address associated with the second email system and having first information identifying the first test email and the second email system. The example method also involves retrieving, from an email account having a second destination email address different from the first destination email address, a plurality of other test emails from other email systems being tested for operability. The other test emails include second information identifying corresponding ones of the other test emails and corresponding ones of the other email systems. The example method involves determining whether the first test email fails to arrive at the email account within a time period from the second email system.
Managing an electronic mail in a communication network
A method, a system, and a computer program product for managing an electronic mail in a communication network. Recursive parameters are provided in a command list of a communication protocol associated with the electronic mail. The command list is partitioned into of command sub-lists using the recursive parameters.
Generation of a communication request based on visual selection
Technologies are generally described for generating a communication request. An example method may include retrieving an image from a memory. The method may also include sending the image to a first device operated by a first user and a second device operated by a second user. The method may also include receiving a first indication of a first selection region from the first device. The method may also include receiving a second indication of a second selection region from the second device. The method may also include analyzing the first and second selection regions. The method may also include selecting the first and second user based on the analysis. The method may also include generating the communication request to request communication between the first user and the second user. The method may also include sending the communication request to at least one of the first device or the second device.
Apparatus, method and computer readable recording medium for sharing real time video through chatting window of messenger service
A method of sharing video through a chatting window of a messenger service includes generating a chatting window according to a request to create the chatting window. The request to create the chatting window is received from one of a plurality of chatting window participants. The chatting window includes a first portion where messages are to be displayed and a second portion where video is to be displayed. The first portion is allocated according to the request to generate the chatting window. A request to share video is received by at least one of the plurality of chatting window participants. The second portion is allocated according to the request to share video. The video is provided by displaying the video in the second portion, where at least one of the chatting window participants accessing the video via the second portion.
System and method for performing follow up based on user interactions
A system and method for follow up management comprising determining if a user has a repository record, extracting information from the repository record associated with the user, and acting on information stored in the repository record. The method may be practiced on a system for managing online interaction comprising a business rules engine a follow up repository, and a follow up engine.
Directed message notification in chat sessions
Embodiments of the present invention disclose a method, computer program product, and system for managing messages in an instant messaging chat session. A computer receives a directed message in the instant messaging chat session, wherein the directed message includes an identification of one or more accounts associated with individuals in the instant messaging chat session. The computer determines accounts associated with individuals in the instant messaging chat session that correspond to the directed message, wherein the accounts associated with individuals that correspond to the directed message include an account associated with an individual that sent the directed message, and the one or more accounts associated with individuals identified in the directed message. The computer displays directed message notifications to the determined accounts associated with individuals that correspond to the directed message. In another embodiment, the computer receives a response to a directed message, and updates the directed message notifications.
System and method for improved synchronization between a server and a client
A system and method for improved client and server communications, more particularly, an improved protocol that may be used for communication between a client and a server, such as in an email environment. Many features are provided for improved communications. An email server may provide the best message body available for an email message, may transfer an entire data object if requested property or properties are not well defined within the data object, may provide progress data for use in tracking download progress, and may send error information for a data object having an error. Email changes may be optimized at an email server component, even if the email changes occurred at another email server component. An email server may maintain a table of changes that occur to folders at an associated data store, and may notify a subscribed email client component of changes that occur in the table.
Packet processing apparatus, packet processing method, and non-transitory computer-readable storage medium
A packet processing apparatus receiving a packet includes a memory storing a flow information, and a processor coupled to the memory and configured to, when a processing method for the received packet is defined in the flow information, store the packet into a buffer in the packet processing apparatus and process the packet stored in the buffer using the processing method, when the processing method is not defined in the flow information and a utilization rate of the buffer exceeds a threshold value, transmit the packet to another packet processing apparatus, and when the processing method is not defined in the flow information and the utilization rate of the buffer does not exceed the threshold value, store the packet into the buffer and issue an inquiry about the processing method.
Network device scheduler and methods thereof
Methods and systems for a network device are provided. The network device includes a stage one arbiter for a base-port having a plurality of sub-ports for determining if there are any pending requests; blocking any other requests from a same receive queue destined for a same sub-port, same transmit queue when there are any pending requests; selecting a group of requests with a highest priority and available resources; selecting highest priority requests; selecting an oldest one of the highest priority requests; sending the selected requests to a stage two arbiter for selecting a request with a highest priority and when there are requests that have a same priority, selecting an oldest request for processing.
Programmable and high performance switch for data center networks
This application describes routing packets from a source server to a plurality of ports of a switch. The switch is programmed by the control server and is used to direct incoming data packets to one or more ports of the switch in a manner that reduces congestion of incoming data packets to a destination server. Further, the control server queries congestion information from the switch, and then sends congestion notification back to the source server to either increase or decrease the amount of data being sent to the destination server.
Network grouping system and the network grouping method thereof
A network grouping system and a network grouping method thereof are provided. The network grouping system includes a controlling server and a connecting server. The connecting server connects to the controlling server via a switch. The connecting server embeds a grouping identifier into a network packet, and transmits the network packet to the controlling server via the switch. The controlling server retrieves the grouping identifier from the network packet, and creates a grouping configuration according to the grouping identifier. The grouping configuration records a matching relation of the grouping identifier with the connecting server. The controlling server further transmits the grouping configuration to the switch so that the switch passes on network packets according to the grouping configuration.
Method and apparatus for implementing and managing virtual switches
In general, the present invention relates to a virtual platform in which one or more distributed virtual switches can be created for use in virtual networking. According to some aspects, the distributed virtual switch according to the invention provides the ability for virtual and physical machines to more readily, securely, and efficiently communicate with each other even if they are not located on the same physical host and/or in the same subnet or VLAN. According other aspects, the distributed virtual switches of the invention can support integration with traditional IP networks and support sophisticated IP technologies including NAT functionality, stateful firewalling, and notifying the IP network of workload migration. According to further aspects, the virtual platform of the invention creates one or more distributed virtual switches which may be allocated to a tenant, application, or other entity requiring isolation and/or independent configuration state. According to still further aspects, the virtual platform of the invention manages and/or uses VLAN or tunnels (e.g, GRE) to create a distributed virtual switch for a network while working with existing switches and routers in the network. The present invention finds utility in both enterprise networks, datacenters and other facilities.
Optimally provisioning and merging shared resources to maximize resource availability
A shared resource system, a method of managing resources on the system and computer program products therefor. A resource consolidation unit causes identification of identical memory segments on host computers. The resource consolidation unit may be in one or more host computers. Each identical memory segment is associated with multiple instances of resources provisioned on at least two host computers. The resource consolidation unit causes provisioned resources to be migrated for at least one instance from one of the two hosts to another. On the other host computer the migrated resources share respective identical memory segments with resources already provisioned on the other host.
Randomized per-packet port channel load balancing
Systems, methods, and non-transitory computer-readable storage media for per-packet load balancing in a port channel. The system first maps an incoming traffic flow to queues containing packets to be transmitted through a port channel at the system, the port channel including ports grouped into a single virtual port. Next, the system assigns a port from the port channel to a queue for a predetermined period of time, wherein the port is assigned to the queue based on at least one of a port state and a service history associated with the queue. The system then de-queues at least a portion of the packets in the queue through the port for the predetermined period of time. This load balancing can ensure that traffic is efficiently and fairly load balanced across the links of the port channel, and packets of each queue are not reordered.
Wireless area network (WAN) overloading
Incoming packets communicated over a common WAN interface of a distributed host device may be processed differently depending on their traffic classification. A virtual forwarding unit classifies incoming packets as tunneled traffic, tunnel-related control traffic, remote agent traffic, or local internet traffic. Tunneled traffic classifies packets transported over data or control tunnels extending between WAN interfaces of distributed host devices. Tunnel-related control traffic classifies packets communicated to measure a quality parameter of the data or control tunnels, such as operations, administration and maintenance (OAM) packets. Remote agent traffic classifies packets associated with existing remote agent sessions, which are created and tracked based on outgoing management traffic originating from the virtual remote agent. Local internet traffic classifies packets associated with existing local internet sessions, which are created and tracked based on outgoing local internet traffic.
Methods and apparatus for handling multicast packets in an audio video bridging (AVB) network
It is determined whether a packet is a multicast packet, and an index to a database is selected from i) a first candidate index determined based on header information of the packet, or ii) a second candidate index determined based on the header information, based on whether the packet is a multicast packet. Information is retrieved from the database using the index, and the header information is compared with information retrieved from the database. Further information retrieved from the database is used to determine one or more ports via which the packet should be transmitted when the header information matches the information retrieved from the database.
Reducing TCP timeouts due to Incast collapse at a network switch
A network switch for reducing TCP timeouts due to incast collapse is disclosed. The network switch has a plurality of buffers for storing network packets for at least one sender server. An incast buffer management component in the network switch allocates a buffer in the plurality of buffers to store an incast notification packet, the incast notification packet indicating one or more network packets that have been dropped by the network switch. The network switch also includes an incast notification component for forwarding the incast notification packet to a destination server with an incast notification packet specific header.
Distributed data processing device and distributed data processing method
A processor receives a deadlock detection message transferred between a plurality of controlled devices so as to be transferred between a plurality of nodes along a first link and a second link, and determines whether a deadlock has occurred on the basis of a history of the deadlock detection message. The plurality of nodes are combined using the first link extending from a first node to a second node and the second link extending from a third node to a fourth node. The first node corresponds to a first controlled device whose control right a first terminal has. The second node corresponds to a second controlled device whose control right the first terminal has. The third node corresponds to a third controlled device whose control right a second terminal has. The fourth node corresponds to a fourth controlled device whose control right the second terminal waits to be given.
Network resource sharing for routing and forwarding information
A system, computer-readable media, and methods for network resource sharing of routing and forwarding information are disclosed. The method may include receiving a first address for a device connected to a network and receiving one or more second addresses for the device. The method may also include identifying a first switch through which the device connects to the network and identifying a second switch for storing the first address and the one or more second addresses. Further, the method may include storing the first address in the first switch and storing the first address and the one or more second addresses in the second switch.
Control apparatus and a communication method, apparatus, and system to perform path control of a network
A control apparatus connected to a communication apparatus(es) that processes received packets in accordance with control information includes a control information generation unit generating control information to be set in the communication apparatus(es) and a communication apparatus control unit setting the generated control information in the communication apparatus(es). This control apparatus sets proxy-response control information in the communication apparatus(es), the proxy-response control information defining a processing content(s) for causing the communication apparatus(es), when the communication apparatus(es) receives a certain packet, to generate a response packet for the certain packet and to transmit the response packet to a source of the certain packet.
Signaling aliasing capability in data centers
Techniques are described for signaling aliasing capability between routers in a multi-tenant data center that uses VPNs, such as Ethernet VPNs. In the multi-tenant data center, two or more PE routers may be connected to a CE router by a multi-homed L2 segment in an all-active mode. Aliasing refers to the ability of a PE router to signal that it can reach a given multi-homed L2 segment even when the PE router has learned no MAC addresses over that multi-homed L2 segment. The PE routers on the multi-homed L2 segment advertise aliasing capability using a route advertisement on a per-L2 segment basis. When the multi-tenant data center uses global VPN identifiers, no additional information is needed by a remote PE to build an ECMP next hop to the PE routers that support aliasing, and transmission of a route advertisement on a per-VPN basis may be suppressed.
Protocol for supporting gateways with redundant routers in a shared domain
In an example embodiment, an apparatus with a first interface coupled to a local domain with routers that employ a redundant router protocol, such as Hot Standby Router Protocol (HSRP) and/or Virtual Router Redundancy Protocol (VRRP), and a second interface coupled with a shared domain, such as Virtual Private LAN (Local Area Network) Service (VPLS), and virtual bridging logic coupled with the first and second interfaces. The virtual bridging logic performs packet snooping, filtering and/or provides a proxy service so that the routers employing the redundant router protocol are localized in the local domain, and avoids the routers employing the redundant router protocol from associating with other routers employing the redundant routing protocol that are in another local domain coupled with the shared domain.
Tunnel provisioning with link aggregation
A method for processing data packets in a communication network includes establishing a path for a flow of the data packets through the communication network. At a node along the path having a plurality of aggregated ports, a port is selected from among the plurality to serve as part of the path. A label is chosen responsively to the selected port. The label is attached to the data packets in the flow at a point on the path upstream from the node. Upon receiving the data packets at the node, the data packets are switched through the selected port responsively to the label.
Methods and systems for network devices and associated network transmissions
Methods and systems for optimizing data structures to efficiently control network data transfers are provided. For example, the method includes determining common key type sets from a plurality of network processing rules; creating one or more hash data structures using the most common key type sets; programming network processing rules that use the most common key type sets into the one or more hash data structures; programming remaining network processing rules into a content addressable memory (CAM); and using the one or more hash data structures and the CAM to find an appropriate network processing rule to process a network packet.
Refresh interval independent fast reroute facility protection tear down messaging
In one example, techniques of this disclosure may enable a point of local repair (PLR) network device to signal availability of link protection or node protection to a merge point (MP) network device and enable a network device to actively determine whether or not it is a merge point router. Based on whether or not the network device determines it is a MP, the network device may selectively clean up LSP states when there is an upstream link or node failure. The RSVP-TE protocol may be extended to enable a network device to send a tear down message to a downstream router, which may enable the downstream router to conditionally delete locale LSP state information. In some instances, a PLR network device may directly send a tear down message to a MP network device even though the PLR network device may not have a working bypass LSP.
Proactive controller for failure resiliency in communication networks
Network devices and systems relating to prevention of large-scale network failure and determining a probability of a large-scale network failure for a network. The network devices may control rerouting of network traffic from failed network paths to preventative paths with probabilities of failure below determined thresholds. The network devices monitor and process real time data for dynamic and proactive rerouting when large-scale network failure occurs or is likely to occur.
Node apparatus, recording medium that has stored control program therein, and method of operating node apparatus
A node apparatus that establishes a wireless communication network through wireless communication with other node apparatuses adjacent to the node apparatus includes a memory configured to store node alive-or-dead information, which represents whether or not a node apparatus is in an abnormal state, a controller configured to perform processes including receiving a data frame, performing determination regarding an alive-or-dead state for a transmission destination node apparatus obtained from the data frame on the basis of the node alive-or-dead information stored in the memory, and determining a destination of the data frame from a transmission destination node apparatus obtained from the data frame and a transmission source node apparatus obtained from the data frame on the basis of a result of the determination, and a transmission unit configured to transmit the data frame in which the determined destination is set.
Transfer apparatus, server, and route changing method
A transfer apparatus is configured to: calculate a total cost of a first route in a first network that starts from a source transfer apparatus and ends at a destination transfer apparatus; obtain a particular cost being a cost between the source transfer apparatus and a first line, which couples the source transfer apparatus and its own transfer apparatus, in a second route, which starts from the source transfer apparatus and reaches the destination transfer apparatus via its own transfer apparatus; calculate a differential between the total cost and the particular cost; set, based on the differential, a cost between its own transfer apparatus and a second line, which couples its own transfer apparatus and the destination transfer apparatus, to a value that causes the source transfer apparatus to select the second route rather than the first route; and notify the cost value to the source transfer apparatus.
Method and system for keeping interest alive in a content centric network
One embodiment provides a system that facilitates a content requesting device to handle a potential timeout event. During operation, the system receives, by a content producing device, a packet that corresponds to a first Interest message from a content requesting device, where the first Interest includes a name. Responsive to determining that additional time is required to generate a matching Content Object for the first Interest, the system generates a notification message which indicates a time period after which a second Interest is to be sent out by the content requesting device. The name for the second Interest can be the same as the name for the first Interest or a new name as indicated in the notification message. The system transmits the notification message to the content requesting device, thereby facilitating the content requesting device to handle a potential timeout event.
Fault diagnostic system, fault diagnostic device, and fault diagnostic method
A fault diagnostic system (1) of the present invention includes a first fault diagnostic device (3) and a second fault diagnostic device (5). The first fault diagnostic device (3) acquires the voltage value of a battery (2) in accordance with a synchronization signal, and sends the voltage value and the synchronization signal. The second fault diagnostic device (5) acquires the voltage value of an inverter (4) in accordance with the received synchronization signal, matches the acquisition timings of the voltage value of the battery (2) and the voltage value of the inverter (4) on the basis of the received synchronization signal, and performs a fault diagnosis by comparing these voltage values.
System and method of infrastructure service discovery
A system and method of infrastructure service discovery is disclosed. In a particular embodiment, a method includes requesting, from an access point, association without authentication and a restricted Internet protocol (IP) address, wherein the restricted IP address is restricted for use in a service discovery procedure.
Composite service pre-provisioning
Composite service provisioning is provided. One or more processors pre-provisions a first pool of service instances of a first composite service. One or more processors pre-provisions a second pool of service instances of a sub-service of the first composite service, wherein instances of the first pool of service instances have placeholder credentials identifying the second pool of service instances.
Framework supporting content delivery with reducer services network
A framework includes a plurality of devices, each device configured to run at least one content delivery (CD) service of a plurality of CD services. The plurality of CD services include reducer services forming one or more reducer service networks.
Network management apparatus and network management method
A network management apparatus includes a first storage unit, a second storage unit, and a controller. The first storage unit stores therein communication groups included in the same subnet and information about communication devices belonging to the respective communication groups in association with each other. The second storage unit stores therein for each of the communication devices a port of a relaying device connected to the communication device as a connection destination port. The controller allows the relaying devices to perform communication between the connection destination ports on the basis of the first storage unit and the second storage unit to allow communication only between the communication devices belonging to the same communication group.
Discovering resources of a distributed computing environment
Methods, apparatuses, and computer program products for discovering resources of a distributed computing environment are provided. Embodiments include a management system transmitting an application program interface (API) message to the distributed computing environment. Embodiments also include the management system receiving from the distributed computing environment, a response to the API message and based on the response, identifying a resource of the distributed computing environment.
Identifying a nearest connection
For identifying a nearest connection is disclosed. The method encodes node data as a linear array that includes a plurality of logic states. Each logic state represents a node of node data. The method identifies a valid connection policy for a valid connection element between two logic states of a plurality of logic states. The method further generates a connection element between each two logic states of the plurality of logic states that satisfy the valid connection policy through a combination map. In addition, the method iteratively generates a connection weight sum for each node connection between a start state and an end state. The method further identifies a first node connection between the start state and the end state with a minimum connection weight sum as a nearest node connection.
The disclosure relates to provisioning end devices, such as wireless end devices. In one aspect, a wireless end device may be provisioned with a backend system without requiring a user to enter information to connect the wireless end device to a local wireless network. Moreover, the wireless end device may be provisioned with a single user action. In one example, the single action may be a single click on an activation portal. The single action may trigger the backend system to detect the wireless end device with the help of one or more gateways at one or more premises, and to associate the wireless end device with a user account. The backend system may also facilitate configuring the wireless end device to connect to the proper or desired network at a premises.
Configuration of transparent interconnection of lots of links (TRILL) protocol enabled device ports in edge virtual bridging (EVB) networks
Embodiments of the invention relate to automatically configuring a Transparent Interconnection of Lots of Links (TRILL) device port in an edge virtual bridging (EVB) network environment. One embodiment includes sending, by a virtual machine (VM) in an EVB network, a message to a device that implements TRILL protocol. The device communicates with a table using the message. Network information is obtained from the table by the device. A port for the device is automatically configured based on the network information. The device has the TRILL protocol either enabled or disabled.
Automated network security
Techniques for providing a network auditing service may be provided. Information about a configuration of a potentially compromised network of computer resources may be compared to a maintained and standard network configuration that is distinct from the potentially compromised network to determine differences. In one example, the potentially compromised network of computer resources may be periodically scanned for configuration information, which may be compared to the standard network configuration to determine if any changes have occurred that would indicate security problems. A report of the differences between the potentially compromised network and the standard network configuration information may be generated and provided for presentation.
Configuration of applications for distributed computing systems
A distributed computing system includes a primary device and one or more backend devices. The primary device provides a management interface for the distributed computing system. A plurality of applications may be installed on the backend devices for execution. The primary device generates registration data that associates the applications with management interface commands or configuration parameters in response to messages received from the applications. Subsequently, when the primary device receives a particular command at the management interface, the primary device identifies, based on the registration data, a particular application from among the plurality of applications. In response to identifying the application, the primary device may send to the application an outgoing message.
Server maintenance system
A method includes: determining a maintenance update for a data service tier based on a service condition of a data service of a target host server; selecting a spare host server to perform the maintenance update; performing the maintenance update of the data service tier to the spare host server; activating the data service on the spare host server; and redirecting client request traffic to the spare host server.
Method and an apparatus for controlling messages between host and controller
A method of controlling at least one message including at least one command and response; and an apparatus therefore are discussed. The method according to one embodiment includes transmitting a get command including a parameter identifier to a receiver for retrieving parameter information; receiving a get command response corresponding to the get command, the get command response including the parameter information corresponding to the parameter identifier and first status information. The first status information indicates whether a parameter requested by the get command is available. If the parameter requested by the get command is available, the first status information indicates a field of STATUS_OK and if the parameter requested by the get command is not available, the first status information indicates a field of STATUS_INVALID_PARAM. The method further includes transmitting a reset command. A parameter of the receiver is reset to a default value based on the reset command.
Cloud based virtual mobile device
Systems and techniques for a cloud based virtual mobile device are described herein. A virtual mobile device may be initialized to correspond to a physical mobile device. The virtual mobile device may include a representation of a physical mobile device operating environment. A service request for the physical mobile device operating environment may be received. The service request may be fulfilled using the representation of the physical mobile device operating environment.
Auto-configuration of demarcation devices in ethernet passive optical network
Systems, devices and techniques for automatically configuring a Demarcation device in a communication network based on DOCSIS provisioning over EPON. A method can be implemented to include initializing a Demarcation device and an optical network unit device (ONU) that is connected to the Demarcation device; operating the Demarcation device to establish a communication with the ONU and to obtain configuration information of the ONU; operating the Demarcation device to communicate to a back-office system in the network regarding information of the Demarcation device, the information including capabilities associated with the Demarcation device; operating the back-office system to generate a service configuration file and to send the generated service configuration file to the Demarcation device; and operating the Demarcation device to process the service configuration file from the back-office system and to update communication services provided by the ONU based on the service configuration file from the back-office system.
System and method for symmetric switching fabrics
A system and method for a symmetric switching fabric includes a first switching tier that includes a plurality of leaf switches, a second switching tier that includes one or more spine switches, and a plurality of interlinks for coupling the leaf switches to the spine switches. Each of the leaf switches includes one or more first ports configured to couple each of the leaf switches to other network devices outside the switching fabric and one or more second ports for coupling each of the leaf switches to each of the spine switches. A ratio of a number of first ports and a number of second ports is selected based on an oversubscription ratio. For each pair of a first switch selected from the leaf switches and a second switch selected from the spine switches, a same number of first interlinks selected from the plurality of interlinks couple the first switch to the second switch.
Intra-area LDP node protection
Techniques are described for providing fast reroute intra-area node protection for label switched paths (LSPs) using label distribution protocol (LDP). In one example, a network device may be configured to use network topology information, obtained by an Interior Gateway Protocol (IGP) executing on the network device, to identify a next next hop merge point to which to automatically establish a bypass LSP, and to which to establish a targeted LDP session for obtaining a label advertised by the next next hop merge point.
Method and apparatus of performing simultaneous multi-agent access for command execution through a single client
One example procedure of managing agents via a session client may include selecting multiple endpoint devices to manage, establishing a connection to a server, and identifying at least two agent identifiers identifying multiple agents corresponding to the multiple endpoint devices. The procedure may also include transmitting a session setup command to the server including the at least two agent identifiers and receiving a confirmation that a session has been established between the session client and the multiple agents of the multiple endpoint devices.
Distributed event delivery
A distributed method of delivering events to agent devices. A first software module generates an event, e.g., a screen pop event or a ringing event, for delivery to a second module responsible for an agent device. A third module, which may be the same module as the first module, evaluates a hash function to determine an identifier for the second module from an identifier for the agent device. The first module delivers the event to the second module, which responds to the event, e.g., by causing an agent device to generate a ringing alert or to display a screen pop.
Transferring data of a dispersed storage network
A method begins by a dispersed storage (DS) processing detecting unavailability of a storage device of a site of dispersed storage network (DSN) memory to produce an unavailable storage device. The method continues with the DS processing module reassigning a fraction of a logical address sub-range of the unavailable storage device to one or more other storage devices, rebuilding one or more logically addressable data objects to produce one or more rebuilt data objects and storing the one or more rebuilt data objects in the one or more other storage devices. When the unavailable storage device becomes available, the method continues with the DS processing module reallocating the fraction of the logical address sub-range from the one or more other storage devices to the storage device and transferring the one or more rebuilt data objects from the one or more other storage devices to the storage device.
System and method for digital sideband mitigation: advanced modulation in a narrow bandwidth RF channel
A system for transmitting modulation in a narrow band radio frequency channel include a first signal generator configured to modulate a first signal containing data for transmission to provide a primary signal, the primary signal utilizing a higher order modulation technique than would otherwise be permissible if the first signal is transmitted separately. The system further includes a second signal generator, configured to modulate a second signal containing a pulse signal to provide a second signal, wherein the peak signal level of the second signal results in a measurement of the bandwidth of the first signal at a higher signal level and a narrower bandwidth, and a digital signal processor (DSP), which receives and combines the primary signal and the secondary signal and outputs a combined modulated signal for further digital-to-analog conversion, processing and transmission in a radio frequency band.
256 quadrature amplitude modulation user equipment category handling
According to some embodiments, a method of decoding a transport block in a wireless network element comprises receiving a first transmission of a transport block. The transport block is modulated according to a first modulation coding scheme. The method further comprises determining a number of soft channel bits SB1 in the first transmission of the transport block based at least on a category type of a wireless device. The category type of wireless device is capable of supporting the first modulation coding scheme and a second modulation coding scheme of a different order than the first modulation scheme and both the first and second modulation schemes are associated with the same number of soft channel bits and soft buffer size. The method further comprises storing SB1 soft channel bits of the first transmission of the transport block in a soft buffer.
Modulated signal generating device and wireless device
According to an embodiment, the modulated signal generating device modulates an input signal and generates an output signal. The modulated signal generating device includes a plurality of amplifiers, a combiner, a determining unit and a control signal generating unit. The plurality of amplifiers connects in parallel with one another and each configures to drive based on a control signal and to generate amplified signals. The combiner configures to combine the amplified signals and to obtain the output signal having a stepwise waveform. The determining unit configures to determine number of amplifiers to be driven based on a value of the input signal in a period shorter than a period of the input signal. The control signal generating unit configures to select zero or more amplifiers to be driven from among the amplifiers, based on the number of amplifiers determined by the determining unit, the value of the input signal, and a fluctuation in the value of the input signal, and to generate the control signal for driving the selected amplifier.
Blind spectrum sensing method and device based on fast fourier transform
A blind spectrum sensing method and device based on fast Fourier transform. The method comprises: the spectrum sensing device receives a signal on an authorized spectrum band, calculates an autocorrelation coefficient of the received signal after sampling and filtering same, then performs a fast Fourier transform of the autocorrelation coefficient, acquires the modulus of the transform result, constructs determination variables on the basis of the modulus, and determine whether or not a signal of an authorized user is present. The method and device have the advantages of low calculation complexity, obviated need for authorization information characteristic, and insensitivity towards noise uncertainty, and are of great performance.
Stream creation with limited topology information
The discovery of a topology of a network with an unknown topology can enable the selection of a data path within the network, and the establishment of a data stream over the selected data path. Routing tables mapping originating nodes to input ports can be created based on the receipt of discovery messages generated by the originating nodes. A source node can select a data path between the source node and a sink node in order to establish a data stream using the routing tables. Data paths can be selected based on, for instance, routing table bandwidth information, latency information, and/or distance information. Data streams can be established over the selected data path, and each node can release any reserved output bandwidth determined to be unnecessary for the data stream.
Methods and apparatus for improving load balancing in overlay networks
An apparatus includes a virtual switch hosted at a first network device. The virtual switch is configured to receive a data packet from a first virtual resource hosted at the first network device to be sent to a second virtual resource hosted at a second network device. The virtual switch is configured to encapsulate the data packet to define an encapsulated data packet using a tunnel header, which has a first portion associated with the first and second network devices, and a second portion associated with a data flow between the first and second virtual resources when the data packet is sent from the first network device to the second network device. An Internet Protocol network can use the second portion of the tunnel header to load balance the data packet with respect to other data packets sent from the first network device to the second network device.
Stopping polling of a peripheral device on a network if the peripheral device leaves the network
When the communication environment of an information processing apparatus is not a communication environment for polling a peripheral apparatus, polling performed on the peripheral apparatus by the information processing apparatus is stopped.
Computer network, computer-implemented method, computer program product, client, and server for natural language-based control of a digital network
The present application relates to a computer network, a computer-implemented method, a computer program product, a client, and a server for natural language-based control of a digital network. In one aspect, the computer network for natural language-based control of a digital network may comprise: a digital network operable to provide sharing of access to a network between a plurality of devices connected in the digital network; a client installed in the digital network and operable to provide a unified natural language interface to a user to control the digital network using natural language; a server connected to the client over the network and operable to process a user request of the user performed through the unified natural language interface; and one or more software agents operable to execute at least one action on at least one of the plurality of devices based on the processed user request.
Logical network generation using primary gateway credentials
Techniques for identifying a primary gateway and generating a logical network using credentials of the primary gateway are provided. For example, a method, computing device, or computer-program product may include transmitting a query, wherein the query includes a request for identifying a primary gateway in a local area network, and receiving a response to the query, wherein the response includes an identifier associated with the primary gateway. Further, the method, computing device, or computer-program product may include transmitting credentials of the primary gateway, wherein the credentials are used to associate the computing device with a logical network in the local area network, and receiving a network identifier, wherein the network identifier is associated with the logical network in the local area network.
System and method for creating multiple transportation streams of streaming media network test traffic in packet-based networks
A packetized streaming media delivery network carries many “streams” of differing media content. They often are from multiple sources and of different media types. The invention consists of a scalable hardware and/or software computing element resolving the network traffic into its individual streams for focused, simultaneous, and continuous real-time monitoring and analysis. The monitoring and analysis consists of delay factor and media loss rate which measure the cumulative jitter of the streaming media within the delivery network and the condition of the media payload. These measurements form a powerful picture of network problem awareness and resolution. The delay factor objectively indicates the contribution of the network devices in the streams' path, allowing for both problem prediction and indication. In one example, tapping a packetized network at various locations allows for correlation of the same-stream performance at various network points to pinpoint the source(s) of the impairment(s).
Method and apparatus for distributing power over communication cabling
A PoE powered device and method of operation are provided. The device includes a first port unit configured to negotiate receipt of a level of PoE power from a power sourcing equipment. The power is received on a first pair of taps on a first communication port. A detection unit is configured to detect a presence of a first optional circuit load and to detect a presence of a second optional power load. A control circuit is configured to establish connectivity between a second pair of taps on the first communication port and a second powered device port unit in response to the detection unit detecting the first optional load, and further configured to establish connectivity between the second pair of taps and a third pair of taps on a pass-through communication port in response to the detection unit failing to detect the first load and detecting the second load.
Methods for securing and activating chips and/or devices that can utilize a hardware security module (HSM). One or more of the methods can include generating one or more digital certificates based on an identification (ID) associated with a device, generating one or more activation certificates and one or more modified activation certificate based on one or more encryption keys, and generating one or more chip data certificates and/or one or more modified chip data certificates.
Secure provisioning of semiconductor chips in untrusted manufacturing factories
One embodiment of the present invention includes a boot read only memory (ROM) with an embedded, private key provision key (KPK) set that enables secure provisioning of chips. As part of taping-out a chip, the chip provider establishes the KPK set and provides the boot ROM exclusive access to the KPK. For each Original Equipment Manufacturer (OEM), the chip provider assigns and discloses an OEM-specific KPK that is included in the KPK set at a particular KPK index. Upon receiving a secured provisioning image and the associated KPK index, the boot ROM accesses the KPK set to reconstruct the KPK and then decrypts and executes the secured provisioning image. Advantageously, this enables the manufacturing factory to provision the chip without the security risks attributable to conventional provisioning approaches that require disclosing security keys to the manufacturing factory.
Timing error processor that uses the derivative of an interpolator function
A digitized signal is processed via an interpolator. The interpolator performs timing adjustment on the digitized signal. The error signal is determined based on a desired signal and the time-adjusted digitized signal. A corrective phase shift of the digitized signal is determined via a least-mean-squared processing block that uses the error and the derivative of a function used by the interpolator. The corrective phase shift is input to the interpolator to perform the timing adjustment.
Equalization scheme in trans-impedance amplifier for optical communications
An optical communication system, a circuit, and a method of operating an optical communication system are provided. The optical communication system is disclosed to include a photodiode configured to receive optical signals and convert the received optical signals into electrical signals, a Trans-Impedance Amplifier (TIA) electrically connected with the photodiode such that the TIA receives the electrical signals from the photodiode and is configured to convert the electrical signals received from the photodiode into amplified electrical signals, and a feedback loop connected between an input of the TIA and an output of the TIA that includes a switchable capacitor bank connected thereto which introduces at least one zero into a feedback factor transfer function of the TIA thereby tuning out poles or equalizing delay introduced by a TIA input network connected between the photodiode and the input of the TIA.
Multilevel modulation optical transceiver and multilevel modulation optical transmission and reception method
A multilevel modulation optical transceiver for distributing an OTN frame defined by ITU-T to a plurality of lanes for transmission, the multilevel modulation optical transceiver including: an MLD transmission unit; and a data replication unit, further including a data rearrangement unit arranged at a preceding stage of the MLD transmission unit, for performing data rearrangement processing of replicating, in advance, a frame synchronization pattern of an overhead of the OTN frame before being subjected to the lane rotation processing from a first lane that has the overhead to another lane that does not have the overhead, and of saving a payload to be overwritten with the frame synchronization pattern to a reserved area of the overhead to enable the payload to be restored on a reception side.
Feedback control during planned gaps in data streams
Embodiments of the present disclosure describe systems and methods for feedback control during planned gaps in data streams. Various embodiments may include reusing a feedback measurement taken prior to a planned gap for a feedback message transmitted after the planned gap. Other embodiments may be described and/or claimed.
Terminal device, base station device, communication method, and integrated circuit for processing demodulation reference signals
There are provided a terminal device, a base station device, and an integrated circuit that enable a base station device and a terminal device to determine parameters related to uplink signals or uplink reference signals and to perform efficient communication. A terminal device that transmits a demodulation reference signal associated with a physical uplink shared channel to a base station device includes determining a sequence group number on the basis of a value of a parameter configured by a higher layer, determining the sequence group number on the basis of a physical layer cell identity, and generating a sequence of the demodulation reference signal on the basis of the sequence group number, wherein the sequence group number is determined on the basis of the physical layer cell identity in a case where a transmission on the physical uplink shared channel corresponding to a downlink control information format to which CRC parity bits scrambled by a Temporary C-RNTI are attached is performed in a random access procedure.
Method for transmitting broadcast signal, method for receiving broadcast signal, apparatus for transmitting broadcast signal, and apparatus for receiving broadcast signal
The present invention provides a method for transmitting a broadcast signal. The method for transmitting a broadcast signal according to the present invention may comprise the steps of: encoding data pipe (DP) data corresponding to each of a plurality of DPs which transmit at least one service or service component; generating at least one signal frame by mapping the encoded DP data to data symbols; modulating data present in the at least one signal frame by means of an OFDM scheme; and transmitting a broadcast signal including the modulated data.
Circuit for introducing signal jitter
A circuit that introduces a calibrated amount of jitter and/or amplitude variation into a signal. By generating a signal with some predetermined amount of variation, signal consuming equipment may be tested to verify that it can properly extract the information from the signal, despite the presence of such variation. The circuit includes a signal propagation channel through which a signal may propagate. However, to introduce signal variation, the signal propagation channel passes close to electromagnetic interference generation circuitry. A calibration circuit has one or multiple settings that sets on or more values of parameters of the electromagnetic interference generation circuitry. During calibration, the parameters are adjusted until desired variation is detected, and which point the calibrated values are set and associated with that signal variation. This may be repeated for multiple calibration values and multiple settings. The ability to handle signals of different variances may then be accomplished.
Simultaneous transmit and receive
A simultaneous transmit and receive (STR) technology is described. The eNB is configured with a downlink centric measurement threshold and an uplink centric measurement threshold which increase overall capacity in the wireless cellular network. A signal measurement command is transmitted from the eNB to the UE instructing the UE to take a signal quality measurement. The signal quality measurement is received from the UE at the eNB. It is determined whether the signal quality measurement is greater than the downlink centric measurement threshold and whether the signal quality measurement is greater than the uplink centric measurement threshold. The downlink centric measurement threshold, the uplink centric measurement threshold, and the DL/UL ratio are configured to increase capacity in the wireless cellular network through selective use of STR.
Method of handling hybrid automatic repeat request feedback and related communication device
A method of handling a hybrid automatic repeat request (HARQ) feedback in a subframe for a first communication device in a wireless communication system comprises determining whether the HARQ feedback exists in a physical HARQ indicator channel (PHICH) in a downlink (DL) control region of the subframe transmitted by a network of the wireless communication system according to a first uplink (UL)/DL configuration of the first communication device and a second UL/DL configuration of a second communication device in the wireless communication system communicating with the network; detecting the HARQ feedback in the PHICH of the subframe, if the HARQ feedback exists in the PHICH; and detecting the HARQ feedback in an enhanced PHICH (ePHICH) of the subframe, if the HARQ feedback does not exist in the PHICH.
Method, receiver device, network node and mobile communication terminal for decoding transmissions
A method, performed in a receiver device, for decoding transmissions of a set of coded information bits from a transmitter. The method includes deriving received symbols from first received data and second received data. The received symbols are converted to sets of soft coded bit estimates. The sets of soft coded bit estimates are combined to form a combined set of soft coded bit estimates. The combined set of soft coded bit estimates are decoded to form a set of soft information bit estimates. The set of soft information bit estimates are converted to form a set of binary bits. A determination is made whether the set of binary bits has been correctly or incorrectly decoded. Interference cancellation is performed on the received data, and the method is repeated until either the set of binary bits has been correctly decoded or a predefined maximum number of iterations is reached.
Energy efficient transmitter power control
A microwave transceiver comprising a data buffer, an ACM module, a PA, and an antenna. The ACM module configured to receive buffered data from the data buffer and to modulate the buffered data at a modulation format having a spectral efficiency, the PA configured to receive modulated buffered data from the ACM module, and to transmit amplified modulated buffered data, via the antenna, to a remote microwave transceiver at an output power. The modulation format is selected from a plurality of modulation formats based on a feedback signal from the remote microwave transceiver. The microwave transceiver further comprising a control module configured to monitor a buffer state of the data buffer, and to control the output power of the PA based on the buffer state.
Bi-directional compact coarse wavelength division multiplexing having a dispersionless bi-directional tap
A bi-directional multiplexer/demultiplexer comprises a common port, an upgrade (UPG) port, a plurality of input/output ports, a plurality of wavelength division multiplexing (WDM) filters arranged in a zig-zag fashion, and a single bi-directional tap. The single bi-directional tap directs a tapped signal to a demultiplexing tap port in demultiplexing mode and a multiplexing tap port in multiplexing mode. The bi-directional tap may be a thin-film tap filter.
Client application and servers for preview and purchase of newly created music by fans
An artist or a music company creates multimedia music contents using interactive media creating tools on their computer and upload to a fans club server. The fans club server maintains all fans registration information and client uploaded multimedia music/songs contents. An interactive media description module on the fans club server generates the interactive media using the multimedia contents provided by the client or the artist as its input. The generated interactive media will be distributed among the fans of the respective artist for playing on their mobile phones and review their contents online for a feedback before the songs being released in the market.
Peer-to-peer emergency communication using public broadcasting
A method for emergency communication includes encoding a message for visual display including a message to field and a message from field. The visual display is revealed to a reading device in communication with a broadcast center, which stores the visual display. The messages are decoded and sorted from visual displays at the broadcast center. On an index channel, a time and channel number for when a message body of the message will be broadcast on a message channel is broadcasted. The message body is broadcasted on the message channel.
Terminal and method for calculating channel quality indication information
Disclosed in the present document are a method and terminal for calculating channel quality indication information. The method includes: a terminal performing a channel measurement according to a received cell state information-reference signal (CSI-RS) or cell reference signal (CRS), determining a channel state information (CSI) reference resource, and determining channel quality indication (CQI) calculation conditions, then the terminal calculating a CQI value corresponding to the CSI reference resource according to the determined conditions and the measurement result. The present document makes a reasonable setting of the CQI calculation conditions, and ensures performance and effectiveness of system link self-adaptation.
Evaluating device antenna performance and quality
A method includes receiving over-the-air (OTA) performance test data measured for a first set of pass computing devices and for a second set of fail computing devices, measuring a first set of training data for the first and second set of computing devices during a plurality of KPI tests, measuring a second set of training data for a particular computing device, determining which ones of the plurality of KPIs qualify as clustering features, and determining a first set of KPI centers, a second set of KPI centers, and a third set of KPI centers, determining a first and a second dissimilarity distance separating the first set and the second set of computing devices from the particular device, respectively. The method further includes determining whether the first dissimilarity distance is greater than second dissimilarity distance to qualify the particular computing device to pass the OTA test.
Body area network signal discrimination
A method, system and devices provide for transmitting, by a first device, a body area network (BAN) session initiation signal indicating an availability to establish an on-body communication with a second device. At least one BAN acknowledgement signal is received by the first device from the second device. The first device determines whether one of the at least one BAN acknowledgement signal is received via conducting across a body. The first device proceeds with BAN session initiation based on determining that one of the at least one BAN acknowledgement signal is received via conducting across a body and terminates BAN session initiation based on not determining that one of the at least one BAN acknowledgement signal is received via conducting across a body.
Thyristor-based optical XOR circuit
An optical XOR circuit that includes a thyristor and control circuitry operably coupled to terminals of the thyristor. The control circuitry is configured to control switching operation of the thyristor in response to the ON/OFF states of two digital optical signal inputs such that the thyristor produces a digital signal output that is the XOR function of the two digital optical signal inputs.
Method and system for robust symmetrical number system photonic direction finding
A four-element wideband photonic DF system with robust symmetrical number system preprocessing utilizes dual electrode Mach-Zehnder modulators (DE-MZMs) to conduct phase detection for direct wideband direction finding (DF) of RF signals, such as microwave signals, in which the normalized magnitude of the output signal phase detector circuit is equal to |sin(φ/2)| where φ is the phase difference between the plane waves arriving at the reference and measurement antennas of a linear DF array. The method and system allow fine angular resolution using a much smaller array size than is typically required for linear arrays employing super-resolution signal processing techniques.
Multi-channel, parallel transmission optical module, and methods of making and using the same
A high speed optical module, and in particular, a multi-channel, single-mode, parallel transmission optical module in the field of optical communication is disclosed. The optical module includes a chassis, a first transmitter optical subassembly (TOSA), a second transmitter optical subassembly (TOSA), a third transmitter optical subassembly (TOSA), a fourth transmitter optical subassembly (TOSA) and a MT fiber connector. The TOSA may be a TO-38 TOSA of a 10 G DFB chip or FP chip. With single-mode communication, the optical module provides a transmission distance over 10 kilometers. In addition, to make coupling single-mode fibers easier, a twelve-core MT fiber connector is employed, wherein four fiber connectors are respectively connected to LC standard fiber stubs and the outputs of the TOSAs accordingly. Thus, the optical module further provides high speed and long-distance transmission, large capacity, small volume, and light weight and can be broadly applied to high speed optical communications.
Using floating transport card for best effort traffic
A network management device monitors an optical network that is configured for a required bandwidth. The optical network includes multiple optical nodes and a plurality of light paths between the multiple optical nodes. The multiple optical nodes include transport cards with a majority of the transport cards provisioned as active cards to receive a traffic load of up to full capacity of the transport cards, and with a minority of the transport cards provisioned as floating spare cards for the active cards. The network management device identifies an unused first floating spare card and an unused second floating spare card in a pair of the multiple optical nodes and automatically provisions, by the network management device, the first floating spare card and the second floating spare card to service a light path for best-effort traffic between the pair of the multiple optical nodes.
Method and system of flow control in multi-hop wireless access networks
A system, method and relay transceiver for multi-hop wireless communications. In the relay, there is a receiver for adapted to receive packets on a first wireless link collectively destined for at least one mobile terminal. The transmitter buffers them and then transmits the packets on a second wireless link. A flow control function is implemented to provide flow control over the first wireless link to limit an amount buffered in the relay transceiver for a given mobile terminal.
System and method for satellite communication
A system and method are disclosed which may include providing at least one satellite having a plurality of beamformers configured to provide a plurality of respective beams having a plurality of different respective fixed pitch angles about an axis of the satellite; causing the at least one satellite to move around the earth along a non-geostationary orbit; establishing a data communication path between a first of the beamformers on the satellite and a communication target, the data communication path having a satellite end at the first beamformer and an target end at the communication target; shifting the satellite end of the data communication path through a succession of the beamformers as the satellite moves along its orbit; and at least substantially reducing an amount of RF wave energy directed to beamformers of the plurality of beamformers not forming part of the data communication path.
Ground terminal and gateway beam pointing toward an unmanned aerial vehicle (UAV) for network access
Systems and methods for detecting an unmanned aerial vehicle (UAV). Network access (for example, to the Internet) may be provided by detecting a UAV and fixing one or more beams from one or more ground terminals to the UAV. In one embodiment, the detection of a UAV includes forming and pointing beams from a ground terminal and ground gateways toward the UAV. The ground terminal may be configured to autonomously steer its antenna beam during initial installation to detect the reference signal from a UAV. In one variant, the ground terminals are steered to more finely track the position of the UAV based on a signal quality metric such as received signal strength. In one embodiment, the ground terminal antenna is initially manually pointed toward the UAV, and thereafter allowed to automatically steer to track the position of the UAV.
End-to-end wireless connectivity between vehicle and remote server using wireless radios of two mobile devices
A system includes a first mobile device having a first wireless radio and a second wireless radio; a second mobile device having a third wireless radio and a fourth wireless radio; wherein the first wireless radio of the first mobile device is configured to communicate wirelessly with the third wireless radio of the second mobile device; wherein the third wireless radio of the second mobile device is configured to communicate wirelessly with the first wireless radio of the first mobile device; wherein the second wireless radio of the first mobile device is configured to communicate at least in part wirelessly with a central maintenance computer of a vehicle; and wherein the fourth wireless radio of the second mobile device is configured to communicate at least in part wirelessly with a remote server.
Transmission, reception and system using multiple antennas
The present disclosure in some embodiments provides transmission, reception and an apparatus using multiple antennas. A transmission apparatus in an embodiment may include first to M-th transmission antennas, where M is a natural number≧2; first to L-th encoders, where L is a natural number≧2; and first to M-th transmission signal generators. The l-th encoder (where l=arbitrary natural number between 1 and L) receives an l-th symbol sequence and generates first to M-th encoded symbol sequences by encoding the received l-th symbol sequence according to an l-th multiple antenna transmission scheme. The m-th transmission signal generator (where m=arbitrary natural number between 1 and M) combines m-th encoded symbol sequences generated by the encoders to generate a signal to be transmitted via the m-th transmission antenna.
Feedback scheduling to reduce feedback rates in MIMO systems
In a closed-loop wireless communication system, a codebook-based feedback control mechanism is provided where feedback from each of a plurality of receivers is scheduled to control the feedback so that the receiving devices do not needlessly feed back precoding information to the transmitting device. The feedback may be controlled by establishing and distributing a schedule to control when each receiver feeds back precoding information, or by establishing and distributing a metric-based feedback threshold that must be satisfied before feedback is permitted.
Method and apparatus for equal energy codebooks for antenna arrays with mutual coupling
A method and apparatus provide equal energy codebooks for antenna arrays with mutual coupling. A plurality of precoders can be received from a codebook in a transmitter having an antenna array. Each precoder of the plurality of precoders can be transformed using a transformation that maps each precoder to equal radiated power to generate transformed precoders. A signal can be received for transmission. A transformed precoder of the plurality of transformed precoders can be applied to the signal to generate a precoded signal for transmission over a physical channel. The precoded signal can be transmitted.
Feedback-based adaptive load modulation (ALM) for a near field communication (NFC) device
A first near field communication (NFC) device or a first NFC-enabled device utilizes a feedback based approach to allow for dynamic adjusting of one or more operating characteristics. The feedback based approach can be a direct feedback based approach or an indirect feedback based approach. In the direct feedback based approach, a second NFC device or a second NFC-enabled device can communicate information to the first NFC device or the first NFC-enabled device to cause the first NFC device or the first NFC-enabled device to dynamically adjust the one or more operating characteristics. In the indirect feedback based approach, the first NFC device or the first NFC-enabled device can dynamically adjust the one or more operating characteristics in response to the non-occurrence of an event, such as receiving a response command from the second NFC device or the second NFC-enabled device to provide an example.
Interface unit and computer
In an interface unit, a shield layer includes an aperture through which magnetic flux generated by a power feeding coil of an antenna passes. Since the antenna is smaller than the shield layer, the aperture is much smaller than the shield layer. Thus, noise constituted by electromagnetic waves that travel from inside to outside of a computer via an aperture provided in an upper surface cover is blocked. During communication, the antenna and the shield layer are electromagnetically coupled to each other, and the shield layer defines and functions as an antenna. This allows proper communication with a communication target.
Guided near field communication for short range data communication
A system is provided in which a set of modules each have a substrate on which is mounted a radio frequency (RF) transmitter and/or an RF receiver coupled to a near field communication (NFC) coupler located on the substrate. Each module has a housing that surrounds and encloses the substrate. The housing has a port region on a surface of the housing. Each module has a field confiner located between the NFC coupler and the port region on the housing configured to guide electromagnetic energy emanated from the NFC coupler through the port region to a port region of an adjacent module.
Power line network apparatus, system and method
Various aspects of the instant disclosure are directed towards a method for communicating time-based data in a power line communication system. In accordance with one or more example embodiments, firmware is downloaded to a multitude of endpoints over power distribution lines carrying alternating current (AC) power. Endpoint devices targeted for changes to stored firmware are grouped and the firmware is delivered in chunks to each group. As devices receive a particular chunk of firmware, the device advances to a next stage and provides information indicative of this stage, based upon which subsequent chunks of firmware are communicated. This occurs (e.g., on a daily cycle) until the endpoint has received all firmware for an update, after which the endpoint(s) are re-started using the firmware. Accordingly, such updates can be carried out in a cyclic and verifiable manner.
Rejecting RF interference in communication systems
Rejecting radio frequency (RF) interference in a communication system. In one aspect, rejecting RF interference includes receiving a signal on a signal path of a receiver from a communication channel, the signal including one or more received signal components having a frequency within a predetermined subset range of frequencies within an operating signal bandwidth of the receiver. The received signal components are attenuated using a notch filter to reduce RF interference obtained during transmission of the signal over the communication channel. In some embodiments, the one or more signal components have been boosted in power at a link partner transmitter connected to the communication channel.
Distributed appropriation and defense of time slot ownership in a channel hopping schedule
In one embodiment, a device in a network receives an indication of an appropriation and defense time slot for a set of time slots in a channel hopping schedule. The device appropriates ownership of the set of time slots using an appropriation window of the appropriation and defense time slot. The device receives an appropriation request from a second device during the appropriation window. In response to receiving the appropriation request, the device sends a defense notification during a defense window of the appropriation and defense time slot.
RX-TX switch with two power amplifiers
An RF front end circuit has a common impedance matching network connected to an output terminal, a first power amplifier arranged to drive power to the output terminal through the common impedance matching network, a second power amplifier adapted to drive power to the output terminal through the common impedance matching network, a second impedance matching network, and a reference terminal at a reference voltage. The second impedance matching network has at least a first connection path to the reference terminal, a second connection path to the second power amplifier and a third connection path to the common impedance matching network. The second impedance matching network also includes a first impedance switch configured to open the first connection path responsive to the second power amplifier being put into an OFF state.
Smartphone case with foldable selfie holder
A protective apparatus adapted for covering a mobile device and having an extendable arm. The protective apparatus includes a protective apparatus sized and shaped for being attached to a camera equipped mobile device and having a back plane and first and second sides which are laterally opposing one another, a scissor mechanism compartment formed by at least one sidewall and a bottom of the backplane, a scissor mechanism adapted to be manually extended from and manually retracted into the scissor mechanism compartment along an extension axis, and when the protective apparatus is attached to the camera equipped mobile device, a back of a housing of the camera equipped mobile device is placed against a top of the back plane and the lateral sides of the housing are placed against the first and second sides.
Customizable device case
A protective case for a portable electronic device includes a rigid plastic frame bonded to a stretchable rubber cover and a back panel insert that can be removably inserted into a pocket in the rear of the stretchable rubber cover and plastic frame. To position a device in the case, the device is simply inserted into the front opening of the rigid plastic frame and stretchable rubber cover such that the edges of the stretchable cover stretch over the device and secure the device in the case. A variety of different removable back panels allow the stand to be easily reconfigured to include a stand for the device case, a pocket adapted to hold payment cards, a folding style wallet, a mirror or a fabric covering.
Managing input/output ports in mixer system using virtual port data
An I/O unit includes a plurality of ports, a mixer includes processing channels, and the mixer and the I/O unit are interconnected via a network. The mixer stores channel data per processing channel. The channel data includes virtual port data for indirectly controlling signal processing of a port to which the channel is patched. The I/O unit stores real port data for controlling a signal processing in a corresponding port per port. In response to a connection instruction, one port and processing channels are interconnected, and real port data of the one port connected with the processing channels is set to a value of virtual port data being maintained for the processing channels.
Semiconductor devices with switchable ground-body connection
Semiconductor devices with switchable connection between body and a ground node are presented. Methods for operating and fabricating such semiconductor devices are also presented.
Method for determining threshold value of radio wave intensity for distinguishing noise in radio waves, and related wireless communication apparatus, analysis apparatus, and non-transitory computer readable medium
Provided are a wireless communication apparatus, an analysis apparatus, an analysis method and a non-transitory computer readable medium on which a program has been stored, in which a threshold value to be used for determining whether received radio waves are noise can be determined independently of an operator's capability. A threshold value is determined, on the basis of a number of intersections between a variation curve of radio wave intensity relative to the frequencies of the radio waves received by a receiver and a first line indicating a given radio wave intensity, a threshold value of radio wave intensity to be used for determining whether the received radio waves are noise.
Detector generating a displacement signal by injection locking and injection pulling
A detector includes an oscillation source, a frequency multiplier, a transceiver and a demodulator. The oscillation source generates a first injection signal with a first frequency. The frequency multiplier receives the first injection signal, outputs an output signal and receives a second injection signal with a second frequency. The frequency multiplier uses injection locking to lock a frequency of the output signal at a multiple of the first frequency, and uses injection pulling to pull the frequency of the output signal to the second frequency. The transceiver transmits the output signal and receives a received signal with a third frequency for updating the second injection signal. The demodulator performs a demodulation operation according to the output signal so as to generate a displacement signal.
Single varactor stack with low second-harmonic generation
Embodiments include semiconductor devices related to compound varactor circuits. Specifically, a semiconductor device may be constructed of a modified anti-series string of varactor pairs, wherein one varactor in a varactor pair has an effective area larger than the other varactor. Varactor pairs in the anti-series string are arranged such that adjacent varactors coupling varactor pairs have equal effective areas. In some embodiments, the anti-series string may have four varactors (two varactor pairs.) In other embodiments, the anti-series string may have eight varactors (four varactor pairs) or twelve varactors (six varactor pairs). The compound varactor using the modified anti-series string of varactor pairs may be advantageous in reducing second harmonics related to parasitic capacitances in anti-series varactor applications.
Method and apparatus for interference cancellation by a user equipment
An apparatus for interference cancellation includes: a front end processing circuit, for receiving at least an interference signal and a desire signal; an inner processing circuit, for channel/noise estimation and for suppressing the interference signal; and a MIMO (multi-input multi-output) processing circuit, for blindly detecting an interference parameter of the interference signal based on the suppressed interference signal, and for jointly cancelling the interference signal from the desire signal and for demodulating the desire signal based on the detected interference parameter and the channel/noise estimation from the inner processing circuit.
Systems and methods for improving WLAN range
Various embodiments disclose systems and methods for employing a Sub1G signal (e.g. a signal in the range of approximately 500 Mhz or 800 mHz) for use with internal and/or external components of various user devices. The Sub1G region may provide a path loss advantage over traditional 2.4 and 5 Ghz systems because of the lower frequency in free-space path loss model. Sub 1G may also present less interference compared to 2.4 GHz (e.g., better QoS for applications such as VOIP, Gaming, etc.). In some of the disclosed embodiments, Sub1G may be employed using current 2.4G or 5G Wireless LAN chipset with RF Up/Down Converters. In some embodiments, the Sub1G approach may be used to create a Long Range Bridge, Long Range Extender, Long Range Client, Long Range Hotspot, etc.
Digital broadcasting system and method of processing data in digital broadcasting system
A method of transmitting a broadcast signal includes encoding mobile data for FEC (Forward Error Correction); encoding signaling information for signaling the mobile data; allocating the encoded mobile data and signaling data into a transmission frame; and transmitting the broadcast signal including the transmission frame, wherein the transmission frame includes a service signaling table having service_type information identifying a type of a service of the mobile data and hidden information indicating whether the service of the mobile data is hidden or not.
Low power low-density parity-check decoding
In general, a minimum determination capability, adapted for determining one or more minimum values from a set of values, is provided. The minimum determination capability may enable, for a set of values, determination of a first minimum value representing a smallest value of the set of values and a second minimum value representing an approximation of a next-smallest value of the set of values. The minimum determination capability may enable, for a set of values where each of the values is represented as a respective set of bits at a respective set of bit positions, determination of a minimum value of the set of values based on a set of bitwise comparisons performed for the respective bit positions of the values.
Multi-path digital-to-analog converter
A digital-to-analog converter which improves dynamic range by apportioning a least significant bits portion of an incoming digital signal to a low-path circuit and a most significant bits portion of the incoming digital signal to a high-path circuit. The low-path circuit has a low-path digital-to-analog converter, which feeds a low-path resistive element, which feeds an output node. The high-path circuit has a high-path digital-to-analog converter, which feeds a high-path resistive element, which feeds an output node. The output node is a simple electrical connection of the outputs of the low-path and high-path resistive elements. The system can further improve dynamic range by providing a high-path amplifier with control element(s) which reduce or eliminate high-path noise from the output node. Further dynamic range improvement is realized when the high-path control system takes advantage of the effects of psychoacoustic masking. Performance linearity is improved by a feedback system which monitors the output signal.
Noise-shaping circuit, digital-to-time converter, analog-to-digital converter, digital-to-analog converter frequency synthesizer, transmitter, receiver, transceiver, method for shaping noise in an input signal
A noise shaping circuit according to an example includes a forward signal path configured to generate an output signal based on an input signal, a feedback signal path configured to feed back a feedback signal based on the output signal to the forward signal path, and a dither generator configured to generate a dither signal and to couple the dither signal into the forward signal path to modify the input signal and into the feedback signal path. Employing a noise shaping circuit according to an example may improve an overall noise performance.
Apparatus and method for phase locked loop bandwidth expansion
An apparatus for PLL bandwidth expansion including a compensation filter and a phase locked loop, where the compensation filter is programmed with a compensation function derived based on programmable coefficients and parameters of a transmitting device, a frequency response of the phase locked loop, and a wanted frequency response.
Circuit device, electronic apparatus, and moving object
A circuit device includes a drive circuit that drives a physical quantity transducer, an FLL circuit that includes a frequency comparator and an oscillator, and generates a clock signal with a signal from the drive circuit as a reference clock signal, and a detection circuit that includes a circuit operated based on the clock signal, and performs detection processing on a detection signal from the physical quantity transducer.
Pulse output circuit, shift register, and display device
A circuit is provided which is constituted by TFTs of one conductivity type, and which is capable of outputting signals of a normal amplitude. When an input clock signal CK1 becomes a high level, each of TFTs (101, 103) is turned on to settle at a low level the potential at a signal output section (Out). A pulse is then input to a signal input section (In) and becomes high level. The gate potential of TFT (102) is increased to (VDD−V thN) and the gate is floated. TFT (102) is thus turned on. Then CK1 becomes low level and each of TFTs (101, 103) is turned off. Simultaneously, CK3 becomes high level and the potential at the signal output section is increased. Simultaneously, the potential at the gate of TFT (102) is increased to a level equal to or higher than (VDD+V thN) by the function of capacitor (104), so that the high level appearing at the signal output section (Out) becomes equal to VDD. When SP becomes low level; CK3 becomes low level; and CK1 becomes high level, the potential at the signal output section (Out) becomes low level again.
A semiconductor device includes a 2-input NAND decoder and an inverter that have six MOS transistors arranged in a line. The MOS transistors of the decoder are formed in a planar silicon layer disposed on a substrate and each have a structure in which a drain, a gate, and a source are arranged vertically and the gate surrounds a silicon pillar. The planar silicon layer includes a first active region having a first conductivity type and a second active region having a second conductivity type. The first and second active regions are connected to each other via a silicon layer on a surface of the planar silicon layer.
Operation mode setting circuit of semiconductor apparatus and data processing system using the same
An operation mode setting circuit of a semiconductor apparatus includes a mode register set configured to update an operation mode information generated internally at the semiconductor apparatus based on preliminary information data in response to a preliminary information setting signal and a preliminary information providing block configured to provide the preliminary information data selected from a plurality of pre-stored preliminary information data to the mode register setting response to the preliminary information setting signal, the selected preliminary information data corresponding to a detected operation parameter detected in response to the preliminary information setting signal.
Interface circuit including buffer circuit for high speed communication, semiconductor apparatus and system including the same
A buffer circuit may include an amplification unit and an active load unit. The amplification unit is electrically coupled to an output node and configured to sense and amplify first and second signals. The active load unit is configured to form a peak of a signal outputted from the output node when the signal transitions.
Gate drive circuit for a semiconductor switch
The present application is directed to drive arrangement for semiconductor switches and in particular to a method of driving the gate of a switch with pulses corresponding to turn-on and turn-off commands through separate turn-on and turn-off transformers. The application provides a fail safe reset feature, a more efficient turn-on circuit and an energy recovery circuit for recovering energy from the gate upon turn-off. The application also provides a novel arrangement for assembling multiple pulse transformers on a circuit board.
Gate drive circuit with a voltage stabilizer and a method
A gate drive circuit creates a bipolar voltage to a gate of an IGB power transistor, and compensates for Miller currents of the IGB power transistor. The compensating is performed by a switching element connected in series with a capacitor between the gate (X4) and a supply voltage.
Integrated circuit and switching power-supply device performing output control through switching operation
An integrated circuit includes: an inductor; a switching element connected to the inductor in series; an oscillator, of which an oscillation frequency is variable; a control unit, which controls the oscillation frequency of the oscillator based on a signal according to an output voltage of a switching power-supply device; a drive signal generating unit, which generates a drive signal used for controlling the switching element based on an output of the oscillator; a drive circuit, which drives the switching element based on the drive signal generated by the drive signal generating unit; and an on-period intermittent control unit, which intermittently performs on-period extension control in which an on-period of the switching element is set to be longer than an on-period based on the drive signal in a state where the oscillation frequency is controlled not to be fixed by the control unit.
Radiation-hardened dual gate semiconductor transistor devices containing various improved structures including MOSFET gate and JFET gate structures and related methods
Systems and methods for controlling current or mitigating electromagnetic or radiation interference effects using structures configured to cooperatively control a common semi-conductive channel region (SCR). One embodiment includes providing a metal oxide semiconductor field effect transistor (MOSFET) section formed with an exemplary SCR and two junction field effect transistor (JFET) gates on opposing sides of the MOSFET's SCR such that operation of the JFET modulates or controls current through the MOSFET's. With two JFET gate terminals to modulate various embodiments' signal(s), an improved mixer, demodulator, and gain control element in, e.g., analog circuits can be realized. Additionally, a direct current (DC)-biased terminal of one embodiment decreases cross-talk with other devices. A lens structure can also be incorporated into MOSFET structures to further adjust operation of the MOSFET. An embodiment can also include a current leakage mitigation structure configured to reduce or eliminate current leakage between MOSFET and JFET structures.
Input buffer circuit
An input buffer circuit comprising: a first current source; a first differential control circuit, configured to generate a first bias voltage at the first couple terminal according to the input signals, and configured to generate first control signals according to the input signals; a second current source; a second differential control circuit, configured to generate a second bias voltage at the second couple terminal according to the input signals, and configured to generate second control signals according to the input signals; a third current source, configured to provide a first current according to the second bias voltage; a first differential output circuit, configured to receive the first control signals to generate output signals; a fourth current source, configured to drain a second current according to the first bias voltage; and a second differential output circuit, configured to receive the second control signals to generate the output signal.
Beam steerable UWB radar
An adaptive UWB radar front-end that can a) automatically tune the pulse width for target type and depth; b) automatically sweep specific area by controlling the timing (delay); and, c) for each steering direction, it can automatically adjusts the power distribution for improving radiation pattern and thus improving signal quality for clutter free imaging.
Thyristor-based optical flip-flop
An optical flip-flop circuit that includes an optical thyristor configured to receive a digital optical signal input and produce a digital signal output based on the ON/OFF state of the digital optical signal input. The optical flip-flop circuit further includes control circuitry operably coupled to the terminals of the optical thyristor. The control circuitry is configured to control switching operation of the optical thyristor in response to the level of a digital electrical signal input.
Voltage-controlled ring oscillator with delay line
The invention relates to a multi-phase oscillator for generating multiple phase-shifted oscillator signals including: a ring oscillator having a number of concatenated oscillator delay cells which are interconnected to generate an oscillator signal, wherein phase-shifted oscillator signals are generated between the oscillator delay cells; a phase-blending unit configured to receive two phase-shifted oscillator signals and to generate a mid-phase oscillator signal whose phase shift is between the shifts of the two phase-shifted oscillator signals; and an interpolator delay line having a number of concatenated interpolator delay cells to generate further phase-shifted oscillator signals.
Receiving circuit, semiconductor apparatus and system using the same
A receiving circuit may include a wide range receiving circuit and a parallelizing circuit. The wide range receiving circuit may amplify an input signal which swings within a first range and generate an intermediate output signal which swings within a second range wider than the first range. The parallelizing circuit may compare the intermediate output signal with a second reference voltage and amplify the intermediate output signal accordingly and generate output signals which swing within a third range wider than the second range.
Driver circuit with feed-forward equalizer
A driver circuit for receiving input data and generating an output signal to a termination element is provided, wherein the input data has a first bit and second bit, and the driver circuit includes: a pair of differential output terminals for outputting the output signal, wherein the pair of differential output terminals has a first output terminal and a second output terminal; at least one current mode drive unit, coupled to the pair of differential output terminals, for outputting a current from one of the first output terminal and the second output terminal, and receiving the current from the other of the first output terminal and the second output terminal according to the first bit; and at least one voltage mode drive unit, coupled to the pair of differential output terminals, for providing voltages to the first output terminal and the second output terminal according to the second bit.
Level shifter circuit
Leakage current in a standby mode of a level shifter capable of operating with low voltage is reduced. Provided is a level shifter circuit in which an n-channel silicon transistor and an oxide semiconductor transistor are provide in series between an output signal line and a low potential power supply line. The potential of a gate electrode of the oxide semiconductor transistor is raised to a potential higher than input signal voltage by capacitive coupling, so that on-state current of the oxide semiconductor transistor is increased.
MOS capacitors with head-to-head fingers and methods of forming the same
A capacitor structure is described. The capacitor structure includes a substrate, a plurality of source/drain regions, a first plurality gates, and a second plurality of gates. The plurality of source/drain regions is formed in the substrate. The first and second plurality of gates is formed above the substrate. Each gate of the first and second plurality of gates has a gate width. The gate widths are configured to be less than an active area width and each gate of the first and second plurality of gates is formed between a pair of the source/drain regions of the plurality of source/drain regions. And, each gate of the first plurality of gates is configured to be in line with a corresponding gate of the second plurality of gates to form a head-to-head gate configuration.
High frequency signal attenuators
Provided herein are high frequency signal attenuators. In certain configurations, an integrated circuit includes a signal conductor that carries a radio frequency (RF) signal, a shield conductor routed with the signal conductor and biased with a ground voltage, and an attenuation circuit that provides a controllable amount of attenuation to the RF signal. The attenuation circuit includes a shunt circuit electrically connected between a signal tapping position of the signal conductor and a shield tapping position of the shield conductor. Connecting the shunt circuit in this manner enhances high frequency performance by reducing a length of an effective loop from the signal conductor to an adjacent portion of the shield conductor.
Electroacoustic transducer having a piezoelectric substrate with electrode fingers divided into four groups
An electroacoustic transducer having an alternative finger structure is provided. The number of fingers of a cell of length A is divisible by four. The electrode fingers of the cell are divided into four groups. The distance (Δ2) between the second group and the third group is less than the distance (Δ1) between the first group and the second group and less than the distance (Δ3) between the third group and the fourth group.
Piezoelectric vibrating piece and piezoelectric vibrator
A pair of vibrating arm portions are disposed lined up in a second direction perpendicular to a first direction and are configured such that base end sides thereof in the first direction are fixed to a base portion. A pair of inclined surfaces are formed on both sides in the second direction on the base end side of the vibrating arm portion so that a width of the vibrating arm portion in the second direction is gradually widened from the distal end side to the base end side. A length of a region, having the pair of inclined surfaces formed therein, in the first direction is set to equal to or greater than 0.25 times and equal to or less than 0.5 times of a total length of the vibrating arm portion from the base end to the distal end.
Resonation device, oscillator, electronic apparatus, and moving object
A resonation device includes substrate, a resonation element that is attached to first main surface of substrate at first and second attachment portion, and heat-generating unit that is disposed on second main surface which is side opposite to first main surface so as to overlap with resonation element in a planar view. When an angle formed by line which connects center of resonation element and center of first attachment portion and virtual line which connects center of heat-generating unit and center of resonation element in a planar view is θ1 and an angle formed by a line which connects center of resonation element and center of second attachment portion and virtual line which connects center of heat-generating unit and center of resonation element in a planar view is θ2, conditions 0°<θ1<90°, 0°<θ2<90°, and 0°<|θ1−θ2|<10° are satisfied.
Loudness-based audio-signal compensation
Provided are, among other things, systems, methods and techniques for loudness-based audio-signal compensation. According to one such system, an input line accepts an input audio signal; a loudness estimator, coupled to the input line, processes the input audio signal to obtain an audio playback loudness level and also provides a production loudness level for the input audio signal; and a filter generator/selector coupled to an output of the loudness estimator provides an audio compensation filter based on the production loudness level and the audio playback loudness level. The input signal is processed by the audio compensation filter to provide an output signal.
Amplifier device with at least one microwave tube
An amplifier device with at least one microwave tube, intended to be mounted on a satellite, includes a high voltage section directly connected to said microwave tube or tubes, a low voltage section, and a low voltage cabling assembly provided with low voltage connectors at the ends thereof connecting said low and high voltage sections.
Linearized high-ohmic resistor
Representative implementations of devices and techniques provide a linearized high-ohmic resistor. In an example, a quantity of serially connected nonlinear impedances is arranged as a resistance. In one example, the quantity of impedances is applied in an amplifier circuit, between an input of the amplifier and an output of the amplifier, and arranged to set a DC operating point for the amplifier.
A differential amplifier stage may include: a first transistor having a gate terminal; a second transistor having a gate terminal; and a voltage limiting circuit coupled to the gate terminals of the first and second transistors, wherein the voltage limiting circuit limits a gate voltage supplied to at least one of the gate terminals of the first and second transistors.
Single stage buffer with filter
A single-stage buffer apparatus includes a first transistor, a second transistor, and a high pass filter network. The first transistor is configured to receive an input signal from a microphone. The second transistor is configured to operate as a cascode transistor. The high pass filter network is coupled to the first transistor and the second transistor. The second transistor electrically decouples the first transistor from an output of the single-stage buffer apparatus. A gate terminal of the second transistor is driven by the high-pass filter network, and the high-pass filter network is driven by the first transistor.
Impedance converter circuit for condenser microphone
To provide an impedance converter circuit for a condenser microphone which can secure a wide dynamic range using a voltage amplifier circuit. The impedance converter circuit is provided with: a first electron tube of a cathode grounded type in which an output signal of a condenser microphone unit is input into a grid and output from a plate; a second electron tube in which an output signal from the plate of the first electron tube is input into a grid and output from at least a cathode; and a feedback element configured to transmit a feedback signal from the cathode of the second electron tube to the grid of the first electron tube.
2G support for 2G and 3G/4G envelope tracking modulator
There is provided an amplification stage including an envelope tracking modulated supply for tracking a reference signal, comprising a low frequency path for tracking low frequency variations in the reference signal and for providing a first output voltage, and a high frequency path for tracking high frequency variations in the reference signal and for providing a second output voltage, and a combiner for combining the first and second output voltages to provide a third output voltage, the amplification stage further comprising a first amplifier arranged to receive the first output voltage as a supply voltage, and a second amplifier arranged to receive the third output voltage as a supply voltage, wherein the first and second amplifiers are enabled in different modes of operation.
Semiconductor amplifier bias circuit and semiconductor amplifier device
A semiconductor amplifier bias circuit includes a first transmission line, a first grounded capacitor, a second transmission line and a power supply terminal. The first transmission line is connected to an output end part of the output matching circuit and the external load. The second transmission line includes one end part connected to the first transmission line and the other end part connected to the first grounded shunt capacitor. An electrical length of the second transmission line is approximately 90° at a center frequency of a band. The one end part is connected to the first transmission line at a position apart from the output end part by an electrical length of approximately 45° at the center frequency. The power supply terminal is connected to a connection point of the first grounded shunt capacitor and the other end part of the second transmission line.
An apparatus includes a differential amplifier. The differential amplifier includes a first side circuit configured to receive a first input signal, a second side circuit configured to receive a second input signal, and a resonant tank circuit coupled between the first and second side circuits. A first capacitor and first switch may be provided in series between a source and drain of a cascode transistor. A second capacitor and second switch may be provided in series between a source and drain of an input transistor. A method includes receiving a first input signal by a first side circuit, receiving a second input signal by a second side circuit, controlling a resource of a resonant tank circuit, and outputting an output signal according to the first and second input signals. The resource of the resonant tank circuit may be controlled according to a transmission mode, frequency band, or both.
Summing amplifier and method thereof
An apparatus includes: a first transconductance device of a first type configured to convert a first voltage into a first current of an output node; a second transconductance device of a second type configured to convert a second voltage into a second current of the output node; a common mode feedback circuit coupled to the output node configured to control a mean voltage at the output node in accordance with a reference voltage; and a reset circuit configured to reset a voltage at the output node in accordance with a clock signal.
Substantially two-dimensional construction element
A construction element (29) which extends in two dimensions comprises a solar energy converter member (1) which also extends along and defines one surface of the construction element (29). The construction element (29) further comprises a building construction member (30) which extends along the construction element (29) and defines the second surface thereof. At least a part of the solar energy converter member (1) is integral with at least a part of the building construction member (30) whereby this integral part both contributes to the requirements for solar energy conversion as well as to requirements for constructions.
Motor drive device and electric compressor
A motor drive device drives a multi-phase synchronous motor in an electric compressor. The multi-phase synchronous motor includes a rotor that is provided with a permanent magnet and a stator having coils of different phases. The motor drive device includes an inverter that supplies current to the coils and a control unit that controls the inverter. The control unit executes an initial angular position calculation processing of detecting a d-axis and a q-axis as an initial angular position of the rotor, a rotating processing of rotating the d-axis and the q-axis in a direction opposite to rotation of the rotor, an acceleration processing of accelerating the rotation of the rotor, and a sensorless control processing of controlling the rotation of the rotor.
Method for operating an electric motor and corresponding electric motor device
A method for operating an electric motor connectable via a switching device to a current source and connected in parallel with a freewheeling device, the switching device having control applied to it at a specific activation ratio within each working cycle to establish a desired effective operating voltage of the electric motor, so that in at least one operating mode each working cycle is includes an activation and a freewheeling time period. The freewheeling device has a freewheeling transistor and a freewheeling diode, connected in parallel with the transistor and reverse-biased as to the current source; and control is applied to the freewheeling transistor in the freewheeling time period as follows: identifying the freewheeling voltage dropping across the electric motor; and switching the freewheeling transistor for a specific switching time period if the freewheeling voltage is different from zero, particularly less than zero. Also described is an electric motor device.
Method and apparatus for control of electrical machines
A control system for an electronically commutated motor (401) can rotate smoothly to very low speeds without using a high resolution encoder and can respond to variations in load without excessive speed fluctuations. The control system can be applied to motors operating with low resolution encoders and motors operating with sensorless rotor position feedback. The electronic control system can vary the magnitude and frequency of the stator excitation applied to one or more stator phase windings, the electronic control system comprising a frequency setting section (402) and a magnitude setting section (403) characterized by the fact that the frequency setting section (402) is constrained to operate over a limited range of frequencies, the maximum frequency being a function which is closely related to the frequency associated with rotation of the rotor at the desired speed.
Hybrid pulse width modulation method for variable speed drive
A system or method controlling a variable speed drive based on PWM techniques, wherein a first PWM method is used when the input current is less than a predetermined threshold value, for higher efficiency and lower total harmonic distortion (THD); and a second PWM method comprising a discontinuous modulation signal is used when the input current is greater than the predetermined threshold value for higher efficiency. By doing so, the maximum efficiency of VSD within the whole operation range can be achieved.
MEMS-based integrated inverter for wafer-scale thermionic energy converter
A thermionic energy converter is provided that includes an anode, a cathode, where the anode is disposed opposite the cathode, and a suspension, where a first end of the suspension is connected to the cathode and a second end of the suspension is connected to the anode, where the suspension moveably supports the cathode above the anode to form a variable gap between the anode and the cathode, where the variable gap is capable of enabling a variable thermionic current between the anode and the cathode, where the thermionic converter is capable of an AC power output.
A method of fabricating a large-scale triboelectric nano-generator by adhering foil to two separate plates, laying polymer to the foil, heating the plates, and then electrically coupling one of the plates.
Dual mode DC-AC inverter system and operation
A dual mode direct current-to-alternating current (DC-AC) inverter is capable of operating either with or without connection to an active external AC power source. The dual mode DC-AC inverter may operate in “current control mode” when connection to the active AC power source is present and may operate in “power control mode” when connection to the active external AC source is absent. Processes for operating an array of these DC-AC inverters are disclosed. The dual mode operation capability enables the DC-AC inverters to function both in the grid connected mode (i.e., current control mode) as well as off-grid mode (i.e., power control mode). The system is configured to sense the presence or absence of grid power and automatically select the appropriate mode of operation. For the power control mode of operation, a process may include designating a master from the array of DC-AC inverters in order to establish the voltage and frequency reference.
Inverter and operating method for an inverter
A method for operating an inverter which is connected to an energy supply grid via a transformer for feeding in electrical energy into the energy supply grid, includes measuring output currents and output voltages of the inverter, and actuating power switches of the inverter using actuation signals that are generated as a function of the measured output currents and the measured output voltages at a fundamental frequency of the energy supply grid. The actuation signals are further generated as a function of a harmonic component of the measured output voltages of the inverter at a multiple of the fundamental frequency using a control loop with positive feedback.
Safety mechanisms, wake up and shutdown methods in distributed power installations
A distributed power system including multiple DC power sources and multiple power modules. The power modules include inputs coupled respectively to the DC power sources and outputs coupled in series to form a serial string. An inverter is coupled to the serial string. The inverter converts power input from the serial string to output power. A signaling mechanism between the inverter and the power module is adapted for controlling operation of the power modules.
Power converters for aircraft starter/generators
A method of converting power includes receiving alternating current (AC) at the first phase leg set of a power conversion system having first and second phase legs sets connected by direct current (DC) leads. The first phase leg set rectifies the received AC power into DC power by switching outer switches of the first phase leg set into an off state. The DC lead conveys the DC power from the first phase leg set to the second phase leg set. The second phase leg set inverts the DC power into AC power.
Inductive clamping circuit
A power control circuit includes a solid state power controller operable to connect an AC power source to a load. The solid state power controller includes a first switching device and a second switching device arranged serially. Each of the switching devices includes a diode, a controller controllably coupled to each of the first switching device and the second switching device, such that the controller is capable of controlling an on/off state of the first switching device and the second switching device. The controller further includes a non-transitory memory storing instructions for causing the controller to perform the steps of: switching off a first switching device having a diode aligned with a current polarity of an AC current flow prior to a first zero crossing, delaying a switching off of a second switching device until after the first zero crossing, and switching the second switching device off after the delay and before a second zero crossing.
Power adapter with a step-down transformer and a voltage step-up circuit
Embodiments of an adapter are disclosed that include a rectifier with an input and an output coupled to a step-down transformer with a primary coil and a secondary coil, wherein the primary coil is coupled to the output of the rectifier. A step-up converter is coupled to the secondary coil.
High bandwidth, high efficiency DC-DC multilevel converter topology
A multilevel DC-DC converter includes a voltage source that provides a voltage Vout1 to at least one charge converter circuit and an output filter capacitor having an associated output voltage Vout2. The at least one charge converter circuit includes a transformer having at least one primary winding and at least two secondary windings, a primary and secondary circuit each having at least two switching elements, and a control unit which receives a control signal, such as but not limited to an envelope tracking signal, which represents a desired output voltage. The control unit is arranged to provide output control signals to the respective switching elements of the primary and secondary circuits to activate and deactivate the respective switching elements to obtain a desired output voltage Vout2. The multilevel DC-DC converter can be arranged to operate as a boost converter or as a buck-boost converter.
Galvanically isolated DC/DC converter and method of controlling a galvanically isolated DC/DC converter
A galvanically isolated DC/DC converter includes a first and a second side converter circuit coupled between a pair of first side DC terminals and a pair of second side DC terminals, respectively. The first side converter circuit has a first and a second switching element, each including a switch and a diode. When the DC/DC converter is in power transfer operation from the second side DC terminals to the first side DC terminals, the second side converter circuit alternates between two power transfer states. A conductive state of the diode of one of the first and second switching elements is the result of one of the two power transfer states. The first side converter circuit is controlled such that the switch of the respectively other of the first and second switching elements is closed for an adaptation interval before the one of the two power transfer states starts.
Carbon nanotube-based integrated power converters
A substrate having trenches containing carbon nanotubes has elements to provide a power converter. One set of trenches is configured to form an inductor and another set is configured to form a capacitor. Trenches in the substrate are also configured to receive semiconductor material and carbon nanotubes to form a power field effect transistor. All the elements are coupled together using carbon nanotubes placed in connection trenches of the substrate.
Methods for operating a converter
A converter may include a transformer; a first circuit arrangement coupled to a first transformer side; a second circuit arrangement coupled to a second transformer side, wherein the second circuit arrangement is configured to provide an output voltage; a first coupler configured to provide information about the output voltage to the first circuit arrangement; wherein the first circuit arrangement is configured to determine a state of the secondary side based on the received information about the output voltage, and to generate a switch control signal dependent on the determined state; a switch circuit arranged on the second side; and a second coupler configured to provide a switch control signal from the first circuit arrangement to the switch circuit; wherein the switch circuit is coupled to the first circuit arrangement to provide a first circuit arrangement control signal to the first circuit arrangement depending on the switch control signal.
Power supply apparatus
A PFC circuit generates substantially sinusoidal current that is in-phase with AC input voltage to compensate for a power factor. A DC-DC converter converts the voltage of a signal outputted from the PFC circuit to determined voltage. A current change detection section detects an amount of change in current outputted from the DC-DC converter, compares the detected amount of change in current with a threshold set in advance, and if the detected amount of change in current is larger than the threshold, outputs a gain switching signal for raising the gain of voltage outputted from the PFC circuit. The current change detection section outputs a voltage control signal for raising the voltage outputted from the PFC circuit to a determined value. A voltage setting section sets the voltage outputted from the PFC circuit to the determined value on the basis of the voltage control signal.
Power supply device
An exemplary embodiment of the present invention relates to a power supply. A power supply according to an exemplary embodiment of the present invention includes: a filter capacitor coupled to a line to which an input voltage rectified from an AC input passed through a dimmer is supplied; a discharge switch coupled to the filter capacitor through the line; and a main switch receiving the input voltage and controlling power transmission. The power supply performs input voltage control to shape the input voltage with a predetermined pattern and controls a switching operation time of the main switch.
Auxiliary supply for a switched-mode power supply controller using bang-bang regulation
A method in a switched-mode power supply (SMPS) and SMPS circuits are provided. The method and circuits use bang-bang regulation to provide for an auxiliary power supply that can be used to power a controller of the SMPS. The additional circuitry required to achieve the method and circuits is minimal and represents advantages over techniques that require an additional power supply or require an auxiliary winding in a transformer. The bang-bang regulation controls switch devices within the SMPS such that a normally-on switch device is enabled while a normally-off switch device is disabled for some period of time. During this period, current is supplied to the SMPS controller and an associated energy-storage device.
Switching regulators, power management devices and systems including the same
A switching regulator includes a DC-DC converter and a dynamic voltage positioning circuit. The DC-DC converter includes an inductor connected between an input port and an output port. The dynamic voltage positioning circuit includes a sensing circuit and a mirroring circuit. The sensing circuit is configured to sense an inductor current flowing through the inductor, and to convert a voltage applied to a direct current resistance (DCR) of the inductor into a droop current using a variable resistor. The mirroring circuit is configured to cause a voltage drop at the output port of the DC-DC converter based on a current corresponding to a difference between a bias current and the droop current.
High side switch for selectively supplying power from a power supply to a load
A circuit arrangement for selectively supplying power from a power supply to a load includes a semiconductor switch, such as an n-channel FET, along with a gate control and a charge pump. The circuit additionally includes a diode located in a ground path between a ground connection of the charge pump and a circuit ground, and a capacitor connected between the power supply and the diode. The added diode and capacitor allow the charge pump to maintain the FET in an ON state during a momentary voltage drop of the supply voltage. This circuit is preferably used with a high side switch integrated circuit.
Voltage regulator and power delivering device therewith
A voltage regulator includes a pass unit configured to transfer an input voltage to an output node as an output voltage according to a control signal, a voltage dividing unit configured to divide the output voltage to generate a divided output voltage, an error amplifying unit configured to output a comparison signal based on comparing a magnitude of the divided output voltage with a magnitude of a reference voltage, and a filter unit configured to filter noise included in the outputted comparison signal to generate the control signal. The filtered noise can correspond to noise included in the outputted comparison signal by transferring noise included in the input voltage to the error amplifying unit via the pass unit and the voltage dividing unit.
Holdup time circuit and method for bridgeless PFC converter
An embodiment holdup time circuit of a bridgeless power factor correction circuit comprises a charge device, an energy storage apparatus and a discharge device. The charge device comprises a first terminal coupled to a bridgeless power factor correction circuit and a second terminal coupled to the energy storage apparatus. The discharge device comprises a first terminal coupled to the energy storage apparatus and a second terminal coupled to the bridgeless power factor correction circuit.
A rotor (2) for an electric motor, which rotor (2) includes a plurality of laminated rotor sheets (4) arranged in layers and each provided with slots (6, 10); a number of permanent magnets (8) arranged within magnet slots (10) in the laminated rotor sheets (4), where an end area (16) of each magnet slot (10) is a magnet free area. The rotor (2) also includes a plurality of rotor bars (14) arranged in rotor bar slots (6) and a rotor sheet band (22) provided between the end area (16) and the adjacent rotor bar slot (6). At least one notch (28, 29) extending from the edge (21) of the rotor bar slot (6) and/or from the edge (21′) of the end area (16) divides the rotor sheet band (22) into a first area (24) and a second area (26). The smallest width (D1) of the first area (24) is smaller than the smallest width (D2) of the second area (26).
Electric machine with different stator pole spacings
An electric machine comprises a rotor (200) equipped with permanent magnets (204, 206, 208, 210), and a stator (100) equipped with electromagnetic poles. The electric machine is characterized in that several adjacent electromagnetic poles respectively constitute an electromagnetic pole group in which the adjacent electromagnetic poles are spaced apart at a first electromagnetic pole spacing, that adjacent electromagnetic poles belonging to different electromagnetic pole groups are spaced apart at an electromagnetic pole spacing greater than said first electromagnetic pole spacing, that each electromagnetic pole group has an even number of electromagnetic poles, and that adjacent electromagnetic poles of an electromagnetic pole group are linked to each other so as to generate magnetic fields of opposite direction in operation.
Stator for rotating electrical machine, method for manufacturing stator, and method for manufacturing coil for stator
Disclosed is a stator for a rotating electrical machine, which includes a stator core having a plurality of slots, and a plurality of coils. Each of the coils has a first inserting section and a second inserting section, which are inserted into two slots which form a pair, a first coil end, and a second coil end. The first and/or the second coil end has a twisted portion and a bent portion. The twisted portion is formed by twisting the coil end at a part close to the first inserting section. The bent portion is formed by bending, at a part close to the second inserting section, the coil end such that the coil end is laid flat.
Method of manufacturing laminated iron core
A laminated iron core manufacturing method in a blanking die apparatus having multiple machining stations is provided. The method includes feeding a belt-shaped workpiece progressively in a longitudinal direction in the blanking die apparatus, operating cutting tools provided in the respective machining stations simultaneously to perform predetermined blanking operations on the progressively fed workpiece and finally perform a contour blanking operation on the workpiece so as to form core pieces, and laminating the core pieces within or outside the blanking die apparatus to thereby manufacture a laminated iron core. An auxiliary cutting tool is operated to form a disposal hole by partly blanking a scrap forming area of the workpiece simultaneously with the operations of the cutting tools of the multiple machining stations, to thereby secure a load balance of the blanking die apparatus in the feeding direction.
Automobile roller-type power generating device
An automobile roller-type power generating device installed at the bottom of a vehicle body includes: a roller pivotally coupled to a camshaft and having a notch; a push slider having an arc bottom and installed in the notch of the roller, and the notch being in a shape corresponsive to the push slider and slightly greater than the push slider to allow the push slider to slide up and down; and a power generating mechanism installed above the pushrod. When the motor vehicle moves to roll the roller, the arc bottom presses the ground and slides into the roller to allow the push slider to slide up and down to transmit kinetic energy to the power generating mechanism, and the power generating mechanism converts the kinetic energy into electric energy to achieve the effect of generating power generation and storing electric energy into the battery.
Through flow ventilation system for a power generation turbine package
A power generation system has a housing with a first housing section (I) and a second housing section (II), an alternator arranged within the first housing section (I) and a gas turbine arranged within the second housing section (II). The alternator is drivable by the gas turbine, wherein the first housing section (I) includes an air inlet through which an airstream is injectable into the first housing section (I) such that the airstream passes the alternator and cools the alternator. The first housing section (I) is coupled to the second housing section (II) such that the airstream is feedable into the second housing section (II) after the airstream has passed the alternator. The second housing section (II) includes an air outlet through which the airstream is exhaustable after passing the gas turbine.
Rotary lifting device
A rotary lifting device comprises an actuator shaft, a linear motor and a rotary motor for moving and rotating the actuator shaft about the longitudinal axis thereof. The rotary motor has a hollow rotor, through which the actuator shaft extends and which is kinematically coupled to the actuator shaft in terms of rotation. The linear motor has an armature coaxially arranged with respect to the actuator shaft and kinematically coupled to the actuator shaft at a first longitudinal end thereof. A step-down gear is arranged at a second longitudinal end of the actuator shaft and is capable of being moved in an axial direction relative to the rotary motor. The step-down gear is kinematically coupled to the actuator shaft at the drive side, both with respect to axial movement of the actuator shaft and with respect to rotating movement of the actuator shaft.
Laminated core for a magnetic bearing having individual laminations with at least one physical interruption and method for constructing such a laminated core
The core inside a combined radial-axial magnetic bearing is stacked with coated laminations each equipped with at least one radial cut. These cuts prevent the inducement of circulating currents caused by varying axial control fluxes through the central hole of the stack. Magnetic symmetry is preserved by pivoting every lamination with respect to the previous one over a particular angle. This arrangement not only reduces the losses in the bearing, but improves the performance of the axial channel as well.
Transverse-displacement stabilizer for passive magnetic bearing systems
The invention provides a way re-center a rotor's central longitudinal rotational axis with a desired system longitudinal axis. A pair of planar semicircular permanent magnets are pieced together to form a circle. The flux from each magnet is pointed in in opposite directions that are both parallel with the rotational axis. A stationary shorted circular winding the plane of which is perpendicular to the system longitudinal axis and the center of curvature of the circular winding is positioned on the system longitudinal axis. Upon rotation of the rotor, when a transverse displacement of the rotational axis occurs relative to the system longitudinal axis, the winding will experience a time-varying magnetic flux such that an alternating current that is proportional to the displacement will flow in the winding. Such time-varying magnetic flux will provide a force that will bring the rotor back to its centered position about the desired axis.
Drive arrangement for an adjusting element of a motor vehicle
The invention relates to a drive arrangement for an adjusting element of a motor vehicle, a clutch arrangement which is connected into the drive train with a drive connection and a driven connection, the clutch arrangement at any rate forwarding a movement which is introduced on the drive side to the driven connection and having a braking arrangement for braking a movement which is introduced on the output side. The braking arrangement has a braking element which can be adjusted counter to a braking force, in that, between the output connection and the braking element, the clutch arrangement has a freewheel arrangement comprising at least one freewheel pair of clamping body freewheels which operate in opposite directions, in that a movement which is introduced on the output side always brings about the blocking of at least one clamping body freewheel and is correspondingly braked via the braking arrangement.
Rotor and rotating electric machine having the same
A rotor for a rotating electric machine has a core body and a magnet. The core body has a through-hole, a first polar portion, and a second polar portion. The first polar portion and the second polar portion are alternately arranged in the circumference direction. The magnet is disposed on the core body at a position corresponding to the first polar portion or the second polar portion. The through-hole has an arc-shaped surface having a first curvature radius. The first polar portion has an arc-shaped surface having a second curvature radius. The second polar portion has an arc-shaped surface having a third curvature radius. The first curvature radius is larger than or equal to the second curvature radius. The first curvature radius is larger than or equal to the third curvature radius.
Electric motor having air tightness test holes
Through a housing of an electric motor, an output shaft attached to a rotor penetrates. In this housing, an air tightness test hole of the electric motor which communicates with internal space of the electric space formed with the housing and a stator is formed. Further, an oil seal which blocks aeration between the internal space and an outside of the electric motor is attached to this housing.
Motor having spoked outer rotor with spaced apart pole segments
An electric motor is provided. The electric motor comprises a stator and a rotor rotatable about an axis and spaced at least in part radially outside the stator. The rotor includes a plurality of arcuately spaced apart pole segments, a plurality of arcuately spaced apart magnets alternately arranged with the pole segments such that each of the pole segments is positioned between an adjacent pair of the magnets, a rotor can at least in part supporting the pole segments and the magnets, and a plurality of pegs. Each of the pole segments defines an opening therethrough and includes a generally arcuately extending wall structure positioned radially outside of and at least in part defining the opening. Each of the pegs extends through a corresponding one of the openings to secure a corresponding one of the pole segments relative to the can.
Stator of a rotary electric machine
A stator of a rotary electric machine includes a stator core, coils and magnetic bodies. The stator core includes a plurality of teeth protruding towards the rotor and being spaced apart from each other and a plurality of slots arranged between two adjacent teeth. The coils are formed out of coil bodies being stacked in radial direction, thus the direction into which the teeth are extending, and are wound inside of slots around the teeth. The magnetic bodies are arranged between adjacent coil bodies. The thickness of the magnetic bodies in radial direction increases with increasing length of the tooth or with decreasing distance towards the air gap between rotor and stator.
Power supply arrangement of a wind farm
A power supply arrangement adapted to provide auxiliary power to a wind farm that feeds into a HVDC transmission link is provided. The power supply arrangement has an auxiliary power supply to deliver auxiliary power (Paux) to the wind farm; a backfeed control for initiating provision of a backfeed voltage on the HVDC link during a wind farm downtime; a backfeed switch to close a DC current path between the HVDC link and the auxiliary power supply; and a power converter for converting the backfeed voltage into auxiliary power (Paux). A wind farm arranged to feed into a HVDC transmission link is also provided, having such a power supply arrangement for providing auxiliary power (Paux) to the wind farm during a wind farm downtime. A method of providing auxiliary power (Pbackfeed) to a wind farm during a wind farm downtime is also provided.
System and method for a multi-coil wireless power transfer
Systems and methods are disclosed for multi-coil wireless power transfer. The system includes a first transmitting coil disposed within a lower portion of a wireless charger, and a second transmitting coil disposed within a side portion of the wireless charger. The system further includes a communications module configured to receive a signal from an information handling system. The information handling system includes a receiving coil. The system additionally includes a transmit module configured to determine an orientation of the receiving coil, and provide a first current to the first transmitting coil and a second current to the second transmitting coil based on the orientation of the receiving coil.
Apparatus and method for wireless charging
A wireless charging apparatus is provided. The wireless charging apparatus includes: an antenna that receives electrical waves; at least two charging power generators that generate charging power for charging a battery using the electrical waves received through the antenna; and a controller that senses a frequency of the electrical waves received through the antenna and that activates one of the at least two charging power generators according to a sensed result.
Master-slave multi-phase charging
A battery charging circuit comprises two or more charging circuits, each capable of charging a battery. The charging outputs of the charging circuits are connected together and can be connected to a battery to provide fast charging of the battery. The charging circuits can be configured so that they do not adversely interfere with each other during battery charging.
Battery charging status indicator for electric vehicle
A charging status indicator of an electric vehicle installed at one side of a charging status indicator cover to indicate a charging status of the electric vehicle as an illumination may include a lens-integrated lamp housing and a printed circuit board (PCB) housing which are vertically coupled to each other, a PCB installed in the PCB housing and having a plurality of Light Emitting Diodes (LEDs) mounted thereon, and a diffusion cap diffusing LED.
Compact and modular electrical power supply unit, with multi-converters, notably for fast recharging terminals for electric vehicles
The device includes a set of electronic switches having a common structure and forming modules for converting electrical energy and a power DC bus onto which the modules are connected in parallel. These modules are controlled by a control circuit so as to supply electrical energy originating from external sources of energy over the power DC bus or to extract electrical energy over this bus to recharge batteries. The device includes at least one AC-DC conversion module configured for carrying out the rectification of an AC line supply and for powering the DC bus, a DC-DC conversion module configured for charging a user battery from the DC bus and a DC-DC conversion module configured for alternatively allowing the recharging of a storage battery from the DC bus or the discharge of the same battery over the latter. The various modules are mounted onto an accommodation structure forming a heat dissipator.
Battery control device comprising a plurality of cell controllers and being capable of determining whether a cell controller is operating abnormally
A battery control device having a plurality of cell controllers which are provided corresponding to respective cell groups, are mutually connected in accordance with a predetermined communication order, and detect a state of each unit battery cell of a corresponding cell group, a control circuit which starts or stops a plurality of cell controllers, transmits a communication signal to the highest-order cell controller in a communication order among the plurality of cell controllers, and receives the communication signal from the lowest-order cell controller in the communication order among the plurality of cell controllers, and a first insulating element provided between the control circuit and the highest-order cell controller.
Battery unit, electric vehicle, movable structure, power supply device, and battery control device
A battery system is provided with a plurality of battery units each including a battery module consisting of a plurality of battery cells, a unit control unit, and a connector, and controls the overall operation of the respective battery units in a main control unit. To the plurality of connectors of the battery units, an external unit can be selectively connected so that voltage adjustment for inhibiting voltage variations among the plurality of battery cells or the plurality of battery modules can be realized by using the external unit. The external unit is connected to the battery unit for which voltage adjustment is necessary on the basis of a voltage adjustment necessity determination.
Adaptable wireless power, light and automation system
A power control unit and method of use thereof for varying the supply of electricity to an electrical apparatus using a wireless communications link between a controller and the power control unit. The power control unit is adapted to alternatively communicate with the controller using a non-peer-to-peer communications standard or a peer-to-peer communications standard such as Wi-Fi Direct.
Device for influencing reactive-power flows
The invention relates to a device for influencing reactive power flows in multi-phase alternating current systems comprising a plurality of thyristor-controlled or thyristor-switched coil branches, each of which comprises a first partial coil and a second partial coil, and a first partial coil and a second partial coil respectively form a structurally independent coil subassembly. The essential feature is that the inductance factor of the first partial coil is specifically dimensioned so as to be at least 10% greater than the inductance factor of the second partial coil and the second partial coil in a coil subassembly is disposed structurally above the first partial coil or the second partial coil is disposed structurally in a core region of the first partial coil. The disclosed device for influencing reactive power flows has a design that is as compact as possible, meets increased stability requirements especially for dynamic loads, and allows production costs and operating expenses to be reduced or kept to a minimum.
Power distribution system loss reduction with distributed energy resource control
A power distribution system has a plurality of reactive power resources including capacitor banks and distributed energy resources connected to branches of the power distribution system. Power loss is reduced in the distribution system by determining discrete switch states for the capacitor banks and continuous set points for the distributed energy resources, so that the reactive power provided by the reactive power resources reduces power loss while optionally correcting voltage violations in the power distribution system when the capacitor banks are set in accordance with the respective discrete switch states and the distributed energy resources are operated at the respective continuous set points. The range of values for the continuous set points is constrained based on maximum and minimum reactive power limits for each distributed energy resource under consideration.
Power switching assembly
A power switching assembly for switching power in a power distribution bus, and a power distribution system including such a power switching assembly, are disclosed. The power switching assembly includes a first terminal, a second terminal, a first semiconductor element and a second semiconductor element electrically coupled between the first terminal and the second terminal to provide controllability of a current flow from the first terminal to the second terminal and from the second terminal to the first terminal A controller for controlling the semiconductor elements may be configured to implement one or more of various control schemes such as a breaker, a current limiter, a load balancer, and a precharging device.
Safety device for a high-voltage system and method for safeguarding a high-voltage system
The invention relates to a safety device for a high-voltage system, having a coupling device which switchably couples high-voltage components of the high-voltage system to external components, and which is designed to electrically separate the high-voltage components from the external components depending on actuation of a safety switch, having a discharge circuit which is designed to electrically discharge the high-voltage components depending on actuation of the safety switch, and having a monitoring device which is designed to monitor electric parameters of the discharge circuit or of the high-voltage components, and to release the lock of a housing for the high-voltage components if at least one of the electric parameters of the discharge circuit or of the high-voltage components falls below a predetermined threshold value.
System and method for compressor motor protection
A refrigerant compressor includes an electric motor. A current sensor measures current flow to the electric motor. A switching device is configured to close and open to allow and prevent current flow to the electric motor, respectively. A maximum continuous current (MCC) device includes a stored digital value corresponding to a maximum continuous current for the electric motor. A motor protection module: communicates with the MCC device, the current sensor, and the switching device; determines a first MCC for the electric motor as a function of the stored digital value received from the MCC device; selectively sets a predetermined MCC to the first MCC; and controls the switching device based on a comparison of the current flow to the electric motor and the predetermined MCC.
System for improving lightning immunity for a solid state power controller
A solid state power controller (SSPC) for an electrical power distribution system (EPDS), the SSPC may include a solid state switching device (SSSD) configured to interrupt current in a feeder line of the EPDS and a processing engine. A clamping device may be interposed between the feeder line and an electrical ground of the EPDS, An opto-coupler may be interposed between the processing engine and the clamping device. The opto-coupler may coupled to the clamping device to provide a lightning-detected signal to the processing engine only when a voltage drop develops across the clamping device. The processing engine may be constrained from commanding an alteration of state of the SSSD upon receiving the lightning-detected signal.
Busway joint coupling having a splice plate with a longitudinal rib
A busway system is provided. The system includes a first electrical busway section, a second electrical busway section longitudinally offset from the first electrical busway section, and a busway joint coupling the first and second electrical busway sections. The busway joint includes a plurality of splice plates. Each splice plate includes a longitudinal rib configured to transfer a compressive force through the busway joint.
Universal mounting clip for signal-carrying cables
A mounting clip for retaining a cable against a mounting surface includes a mounting flange configured to be mounted to a mounting structure, a first cable retainer, and a second cable retainer. The first cable retainer extends from the mounting flange and defines a first passage configured to receive a length of a cable therethrough. The second cable retainer extends from the mounting flange and defines a second passage configured to receive the length of cable therethrough. The second cable retainer is resiliently movable between a rest position and a loaded position. In the rest position, the second cable retainer extends into the first passage and defines the second passage smaller than the first passage. In the loaded position, the second cable retainer is moved in a direction away from the mounting structure by the length of the cable received in the first passage and is configured to apply a force to an outer surface of the length of the cable to hold the length of the cable against the mounting structure.
A terminal feedthrough is provided. The terminal feedthrough includes a terminal pin insert having a pair of ends. A polymeric body having an externally threaded region is disposed about the terminal pin insert to form an interface with the terminal pin insert. At least one of threads of the externally threaded region and a cylindrical pin interface is configured to provide a flame-quenching pathway.
Non-penetrating anchor system and method
An anchor for lightning protection systems include a base and pad that extend over a sufficient area and a sufficient bearing length to hold in shear and in tension against the weight, shear force, and moment of cables, points, and other components of a lightning protection systems. The mounting anchor is non-penetrating, and adheres to a vertical surface almost immediately without requiring damage to structures, long term support over days waiting for cure, and works in overhang situations as well. An integrated clip may be constructed with the base from sheet material. Adhesion of the base to a cover material on a wall or parapet may be promptly followed by snapping cable into clips formed monolithically with the base.
Apparatus containing a dielectric insulation gas comprising an organofluorine compound
An apparatus for the generation, the distribution or the usage of electrical energy, the apparatus including a housing enclosing an insulating space and an electrical component arranged in the insulating space. The insulating space contains a dielectric insulation gas including an organofluorine compound A. The apparatus further includes a molecular sieve arranged such as to come into contact with the insulation gas. The molecular sieve has an average pore size y greater than the molecular size of at least one decomposition product of the organofluorine compound A generated during operation of the apparatus. The adsorption capability of the molecular sieve for organofluorine compound A is lower than for the at least one decomposition product. The apparatus further includes at least one desiccant arranged such as to come into contact with the insulation gas.
Semiconductor laser element
A semiconductor laser element includes: a semiconductor stack with a ridge, the semiconductor stack having an emission surface and a reflection surface; a first electrode layer extending in the lengthwise direction and disposed on the ridge in contact with the semiconductor stack; a current injection prevention layer covering at least a part of an upper surface from side surfaces of the first electrode layer, and being in contact with the first electrode layer at 18 to 80% of a contact surface area between the first electrode layer and the semiconductor stack; and a second electrode layer disposed on the current injection prevention layer, and being in contact with a part of the first electrode layer, edges of the second electrode layer being disposed closer to the emission surface and the reflection surface than edges of the first electrode layer, respectively.
Microchannel cooler for a single laser diode emitter based system
A laser system that allows transverse arrangement of laser emitters around a laser medium. The system includes a laser medium with a coolant source and electrical controls. A pump layer has a mounting surface, an opposite bottom surface and a center aperture through which the laser medium is inserted. Laser diode emitters are disposed on the mounting surface circumferentially around the laser medium. An intermediate layer has at least one radial channel in fluid communication with the coolant conduit. The intermediate layer is in contact with the bottom surface. A middle layer has micro-channels formed therethrough and a center aperture. The micro-channels are radially arranged around the center aperture and the middle layer is in contact with the intermediate layer. The coolant source is fluidly coupled to the micro-channels to allow coolant to be directed through the microchannels and the radial channel to impinge on the bottom surface.
Compact laser source
Embodiments of the present invention are directed toward a low-power, high quality compact laser source. Embodiments include an optical combiner combining the outputs of a pump laser and a Fabry-Perot seed laser into a fiber amplifier. The fiber amplifier can comprise, for example, erbium-doped fiber. Embodiments can include pulsed and continuous wave lasers, depending on desired functionality.
Fiber-optic laser oscillator
The invention relates to a laser oscillator comprising an amplifying optical fiber (MA) inserted in a resonant cavity so as to act as an active medium, and pumping means (DL, CP) causing a population inversion in said amplifying optical fiber, characterized in that said amplifying optical fiber comprises at least two cores (C1, C2) optically coupled to each other in a common cladding (G), and in that the shapes, sizes, refractive indices and the relative arrangement of said cores are chosen so that super-modes are supported, at least one (SMI) of which super-modes has, in an emission spectral band of said laser oscillator, a normal chromatic dispersion.
USB3.0 connector and method of making the same
A USB 3.0 connector includes an insulative body, a plurality of first and second terminals, and an outer shell covering the insulative body. The insulative body includes a base that has a base upper wall, a base lower wall, and two base sidewalls. The base lower wall has a rear end notched in a frontward direction to form a plurality of alternating shallow and deep notches to position first and second legs of the first and second terminals, which are bent downwardly. The alternating shallow and deep notches space the first legs apart from the second legs, respectively. The number of component parts for assembly is therefore reduced.
Providing orientation support in receptacles
A method of receiving a plug at a receptacle is disclosed. The method may include receiving a plug at a receptacle, the receptacle including contacts disposed with a rotational symmetry about a center point of the receptacle. The method may also include determining, via detection circuitry, any orientation of the plug inserted into the receptacle. The method may also include changing, via selection control circuitry, a connection path coupled to the contacts based on the orientation of the plug.
RJ45 jacks and breakaway RJ45 cable assemblies using same
The present invention generally relates to the field of network communication. In an embodiment, the present invention is a breakaway RJ45 cable assembly that includes a standard RJ45 plug inserted into a modified RJ45 jack that, upon a sufficient amount of tension, releases the installed standard RJ45 plug. To insure that, as tension builds up in the cable assembly, the connection between the modified RJ45 jack and the patch cord to which the standard RJ45 plug is connected to experience tension substantially along the plug and jack body lengths the breakaway cable assembly is installed in the middle of a communication channel.
An electrical connector including an insulating body, multiple terminals received in the insulating body, and a contact member. The insulating body includes a base and a tongue extending forward from the base. The tongue has a rear segment and a front segment, and the rear segment is higher than the front segment. Each terminal has a mating portion exposed from the front segment. The front segment has an isolation portion close to the rear segment, and the isolation portion is higher than the mating portion and lower than the rear segment. The contact member is disposed at the rear segment, and used for buckling a grounding elastic sheet of a mating connector during mating. The isolation portion is at least partially located on an insertion path of the grounding elastic sheet.
Cable connector assembly with improved grounding transfer structure
A cable connector assembly comprises an insulative housing, a plurality of contacts retained in the insulative housing and including a grounding contact, a cable and a connecting member, each of the contacts defines a soldering portion, the soldering portions are arranged in two rows spaced along a vertical direction, each row of the soldering portions includes one part of the grounding soldering portion, the cable includes a plurality of coaxial wires to electrically connect with corresponding contacts, each coaxial wire includes an inner conductor, a inner insulative layer enclosing the inner conductor, a braiding layer enclosing the insulative layer, and an outer insulative layer enclosing the braiding layer, the connecting member is electrically connected with the parts of the grounding soldering portion and the braiding layers of the coaxial wires.
Connector and connector assembly
A connector is provided with a lock portion, a lock supporting portion and a lock releasing member. A part of the connector forms a fitting portion to be received by a mating fitting portion of a mating connector in a mated state. The lock portion is provided in the fitting portion and locks a mating lock portion in the mated state. The lock supporting portion supports the lock portion to allow movement of the lock portion in a direction intersecting with a fitting direction. The lock releasing member is provided with a pressing portion. When release operation of the lock releasing member is performed, the pressing portion presses a pressed portion to move the lock portion toward an inside of the fitting portion in a perpendicular to the fitting direction.
Low profile connector system
A connector system is disclosed that can support high data rates over a connector with terminals on a 0.5 mm pitch. A plug connector can include a termination module that has a paddle card and a plug module that includes rows of terminals. The termination module and the plug module can be aligned via the row of terminals and pads on the paddle card. A receptacle connector includes two rows of terminals that are provided on opposite sides of a tongue. The tongue includes impedance notches aligned with terminals arranged as differential pairs. Ground terminals extend past the differential pairs and along the impedance notch.
Cable strain relief
An embodiment of a cable assembly includes a cable including at least a shielded conductor, a mating connector mounted to a first assembly end, and an elongated strain relief grommet disposed longitudinally between the cable and the mating connector. The strain relief grommet includes a grommet body formed from a compressible material. The body includes a first grommet end portion disposed proximate to the mating connector, and a second grommet end portion disposed distal to the mating connector.
Underwater connecting apparatus and assemblies
An underwater connecting apparatus is provided. The underwater connecting apparatus includes a flexible diaphragm defining a wall of a chamber for receiving therein an electrical conductor and for containing an electrically insulating material around the conductor. The flexible diaphragm includes an electrically conductive material.
Electrical device cover assembly with cord retention
A weatherproof cover assembly for an electrical wiring device such as an electrical receptacle includes a base having a front face and an opening in the front face for receiving the face of the electrical wiring device. A cover is hinged to the base to pivot between an open position and a closed position covering the electrical wiring device. The cover assembly includes a first cord retention member proximate a first side of the cover assembly having an opening with a dimension for gripping an electrical cord and a second cord retention member proximate a second side of the cover assembly with an opening with a dimension for gripping the electrical cord. The cord retention member can be a hook formed on the base and spaced outwardly from the cover or a slot formed in the peripheral edge of the cover.
Connecting mechanism having two contacts with contact surfaces inclined in a direction perpendicular to their mating direction
A connecting mechanism having a male contact and a female contact, each of the male and female contacts having a first surface including at least in part a flat surface portion defined therein, a second surface opposing the first surface, and a contact surface extending between the first surface and the second surface. The contact surface is designed so that, when the first contact and the second contact are electrically connected with each other, the contact surfaces of the first contact and the second contact make a surface contact therebetween that inclines with respect to the flat surface portions of the first and second contacts in a cross section that crosses the first surface, the second surface, and the contact surface.
Ultra low profile PCB embeddable electrical connector assemblies for power and signal transmission
Methods and devices for interconnection of Printed Circuit Boards (PCB) and to one another or to other components using ultra low profile electrical connectors. Examples include male and female inserts for placement in the plane of a PCB, and PCB assemblies comprising one or the other of male or female inserts for such placement. Further examples include surface mounted male and female connectors and PCB assemblies, in which the connectors comprise base members and connector elements configured to couple to corresponding assemblies on other PCT assemblies by movement in a horizontal plane relative to the PCB.
Connector terminal and method for producing connector terminal
It is aimed to provide a connector terminal including a silver layer on a surface of an electrical contact portion, having a reduced coefficient of friction of a surface and excellent in practicality and productivity and provide a method for producing such a connector terminal. A coating layer made of a silver layer and a film formed by bringing the silver layer into contact with a solution containing thiol and benzotriazole is formed on a contact portion of a connector terminal to be electrically brought into contact with another electrically conductive member. A solvent of this solution is preferably water and the thiol is preferably octadecanethiol.
Electrical plug type connector having a microstructured contact element
In an electrical plug type connector having an electrically conductive contact element having a contact surface, the contact surface has a microstructure.
High data rate connectors and cable assemblies that are suitable for harsh environments and related methods and systems
An inline communications connector is provided that includes a housing and tip and ring contacts that are mounted in the housing. The tip contact includes an input tip socket, an output tip socket and a tip socket connection section that physically and electrically connects the input and output tip sockets. The ring contact includes an input ring socket, an output ring socket and a ring socket connection section that physically and electrically connects the input and output ring sockets. The input tip socket is not collinear with the output tip socket and the input ring socket is not collinear with the output ring socket.
Electrical connector having wafers
An electrical connector includes a housing having a cavity. A wafer stack is received in the cavity. The wafer stack includes a plurality of electrical wafers arranged parallel to each other within the cavity. Each wafer includes a first edge and a second edge. Each wafer includes at least one trace between the first and second edges. The electrical connector includes a flex harness including a plurality of flexible printed circuit boards (FPCBs). The FPCBs are electrically connected to corresponding wafers.
Pin attach converter
A pin attach converter for coupling an electrical contact to a printed circuit board may include a compliant region having a first length adapted to traverse an aperture in a printed circuit board and provide mechanical and electrical registry with at least one wall of the aperture. The pin attach converter may also include an adapter region coupled to the compliant region, and having a cavity with a second length and adapted to receive the electrical contact, where the second length extends along a same longitudinal axis as the first length, and the cavity is adapted to provide mechanical and electrical registry with the electrical contact.
Peg press-fitting structure for connector
A peg press-fitting structure for a connector includes a peg which is made from a metal plate to fix a housing of the connector to a circuit board, and which is attached to the housing by being press-fitted from the distal end of the peg into a peg attaching slot of the housing of the connector. The housing is provided with an end wall where an entrance of the peg attaching slot opens. A press-fitting position regulating projection, which regulates the press-fitting position of the peg by abutting against the end wall of the housing where the entrance of the peg attaching slot opens, is provided closer to the base end of the peg than a press-fitted portion of the peg that is press-fitted into the peg attaching slot.
Contact terminal for printed circuit board
A contact terminal device for a Printed Circuit Board (PCB), includes the contact terminal being formed to correspondingly cover at least a portion of an opening formed in the PCB and a terminal member fixed onto the PCB, in which the terminal member includes a fixing portion fixed around the opening on a surface of the PCB and a contact terminal portion extending from the fixing portion to be disposed on the opening. The contact terminal for the PCB reduces a height from a surface of the PCB to a contact point with a counterpart component, i.e., a contact height, contributing to reducing the thickness of the portable terminal.
Structure for fixing battery post terminal
A fixing structure includes a battery post terminal having extended portions each having an inclined surface formed thereon, and an electrode fitting part sandwiching, from both sides, side surfaces of a battery post by performing pressing to narrow a space between the extended portions; a slope member having four leg parts each having a slope formed thereon whose inclination angle is the same as that of the inclined surface, and pressing the extended portions by being moved in an up-and-down direction while making the slopes to be brought into contact with the inclined surfaces; and a bolt moving the slope member in the up-and-down direction, in which the four leg parts are disposed with a space provided therebetween along an outer periphery of a screw part, the screw part being set as a center, when the battery post terminal is seen from a vertical direction.
A connector housing, terminals which have press-connecting blades that are exposed from the back end surface of the connector housing, a bus bar plate which is mounted to the back end surface of the connector housing, and a cover which is mounted by a pressing force which makes the press-connecting blades that penetrate insulators to be press-connected to signal lines of a shield attached flat cable, and makes a shield member contact the bus bar, and which holds and fixes an electric wire sheath attached part between the cover and the connector housing are included.
Electromagnetic dipole antenna
An electromagnetic dipole antenna designed in the present invention includes an antenna radiating unit and a metal ground, where the antenna radiating unit mainly includes vertical electric dipole and horizontal magnetic dipole, where the vertical electric dipole and the horizontal magnetic dipole jointly form an electromagnetic coupling structure. The antenna has advantages of small size, low profile, and the like.
Array of two twin-reflector antennas mounted on a common support and a satellite comprising this array
The two twin-reflector antennas comprise a common support on which they are mounted, with each twin-reflector antenna comprising a main reflector, a secondary reflector and at least one radiating source placed in front of the corresponding secondary reflector, and optical paths of beams produced by the two twin-reflector antennas crisscrossing one another.
Planar linear phase array antenna with enhanced beam scanning
An apparatus for a planar phase array antenna is provided. The planar phase array antenna includes a planar waveguide formed by a top ground and a bottom ground with a dielectric layer between the top ground and the bottom ground, a phase array, including radiators, configured to form an electromagnetic wave front inside the planar waveguide, at least one back side reflecting structure located behind the phase array, and at least one deflecting structure, implemented in the dielectric layer, configured to deflect the electromagnetic wave front inside the planar waveguide, wherein a permittivity value of the at least one deflecting structure is not equal to a permittivity value of the dielectric layer of the planar waveguide.
Planar radiating element and manifold for electronically scanned antenna applications
An antenna includes a higher order Floquet mode proximity coupled radiating element. The higher order Floquet mode scattering allows good polarization and the radiating element and feed layer can be combined. A vertical probe connects the metal layers of the radiating element for ease of manufacture. The radiating element utilizes higher order dielectric constant materials and a compact Wilkinson power divider allows for a smaller footprint and superior isolation.
Antenna system with reduced multipath reception
An antenna system with a sharp difference in directional pattern is intended for receiving GNSS signals. The antenna system includes at least two antenna elements located above a high-impedance capacitive ground plane, and a combining network. Antenna elements are spaced apart in vertical direction. The combining network provides subtraction of the signal reflected from the ground, the arrangement of antenna elements above the high-impedance capacitive ground plane making such subtraction efficient.
Electromagnetic enhancement and decoupling
Apparatus and methods for providing a substantially surface independent tagging system are disclosed. A resonant dielectric cavity is defined between upper and lower conducting layers, and closed at one end by a conducting base portion. Incident radiation couples into the cavity and is resonantly enhanced. An electronic device or tag paced at the edge of the cavity experiences a high electric field strength on account of this enhancement and is driven into operation.
Non-stationary magnetic field emitter, its connection in system and data modulation method
The emitter is intended to provide a contactless communication channel (particularly RFID/NFC) in miniature build space. The emitter has an oblong, at least partially ferrite core (1), the core (1) is winded up by a wire (4) with at least two threads (2), the threads (2) are on the core (1) placed tightly next to each other and the effective width (w)of one thread (2) corresponds to the radius of the core (1) in the circular core (1) cross-section, or corresponds to the equivalent radius in other shapes of the core (1) with deviation up to +−75%. The wire (4) of the coil is flat, or the coil includes several wires held parallel to each other (41 to 4N) forming a multi-stage thread. The emitter can be placed in the removable memory card (5) and/or on the PCB board (10) and/or SIM card (9) and/or battery (11). Modulation of data transmitted by the emitter uses electromagnetic wave generator with a frequency different from the receiver, difference of these frequencies corresponds to the subcarrier frequency.
An antenna device is provided. The antenna includes a feeding end, a grounding end, a loop metal portion and a protruded metal portion. The grounding end is electrically connected to a ground plane. The loop metal portion extends from the feeding end to the grounding end to form a loop antenna structure. The protruded metal portion is electrically connected to the loop metal portion, wherein the distance between the protruded metal portion and the grounding end is shorter than the distance between the protruded metal portion and the feeding end.