Dispensible electrical gasket, electronic module having dispensible electrical gasket, and method of fabricating same
An electronic module and method of making an electronic module include a printed circuit board (PCB) having a surface, at least one conductive trace being formed on the surface. A housing element for mechanically mating with the PCB includes at least one mating surface aligned with the conductive trace on the PCB when the PCB and the housing element are mechanically mated, the mating surface comprising a plurality of alternating protrusions and spaces between the protrusions. An electrical gasket is formed on the mating surface of the housing element such that the electrical gasket conforms with the protrusions and spaces on the mating surface of the housing element and is disposed between the mating surface of the housing element and the conductive trace on the surface of the PCB when the housing element and the PCB are mechanically mated, such that the electrical gasket provides an electromagnetic interference (EMI) seal between the mating surface of the housing element and the conductive trace on the first surface of the PCB.
Power converter performing evaporative cooling of a switching element
A power converter, which performs cooling of a switching element by using a boiling cooling apparatus that makes use of a boiling phenomenon of a coolant incorporated therein, includes a control unit to control an operation of the power converter based on a deviation between an element attachment surface temperature, which is a temperature of an attachment surface of the switching element, and a cooling apparatus intake air temperature. When the deviation between the element attachment surface temperature and the cooling apparatus intake air temperature exceeds a predetermined threshold, the control unit performs control of stopping the power converter.
Cooling heat-generating electronics
A server rack sub-assembly includes at least one motherboard having a perimeter; a plurality of heat-generating electronic devices mounted on the motherboard in an area of the motherboard thermally decoupled from the motherboard perimeter; one or more brackets including heat transfer surfaces and attached to the motherboard along at least a portion of the motherboard perimeter; and a heat transfer device thermally coupled to the area of the motherboard that is thermally decoupled from the motherboard perimeter and the one or more brackets. The one or more brackets are adapted to receive a cooling airflow circulated over the bracket and to convectively transfer heat into the cooling airflow and are further adapted to couple the motherboard to a server rack assembly. The heat transfer device is arranged to conductively transfer heat from the one or more electronic devices to the brackets.
Pluggable module housing assembly
A pluggable module housing assembly comprises a base at least partially surrounding a socket having an entrance sized and dimensioned to receive a pluggable module. At least one guide extends adjacent to the socket. A heat sink assembly includes a riding heat sink having a module-contacting surface facing the socket, and an actuating assembly coupled to the base and to the riding heat sink. The actuating assembly is configured to move the riding heat sink relative to the base between a deployed position a first distance from the at least one guide, and a stowed position a second distance from the at least one guide, the second distance being greater than the first distance.
Heat sinking pad and printed circuit board
The present invention relates to a heat sinking pad and a printed circuit board. The surface of the heat sinking pad on which electronic components are placed comprises a solder loading area and a solder non-loading area, wherein the solder loading area is used for being coated with solder; and the solder non-loading area comprises heat collection passages for collecting heat on the heat sinking pad and heat dissipation passages communicated with the heat collection passages. Openings of the heat dissipation passages are positioned at edges of the heat sinking pad so as to discharge the heat collected by the heat collection passages to the outside of the heat sinking pad. The heat dissipation to the edges of the heat sinking pad along the heat collection passages and the heat dissipation passages is faster than along the solder loading area, so the heat sinking pad has higher heat dissipation speed.
An electronic device includes an upper cover, a lower cover combined with the upper cover, and a heat conducting pillar. An accommodating space is formed by the upper cover and the lower cover. The heat conducting pillar is disposed in the accommodating space and physically connected with the upper cover and the lower cover to balance the temperature of the upper cover and the lower cover.
Alignment device of a hard disk drive bay
An alignment device of a hard disk drive (HDD) bay has a casing, at least one door, and at least one alignment mechanism. The at least one door is mounted on a front sidewall of the casing. The at least one alignment mechanism is mounted on a rear sidewall of the casing. Each of the at least one alignment mechanism has a stationary seat, and an aligning panel and a torsion spring pivotally mounted on the stationary seat. The torsion spring pushes the aligning panel to pivot toward a lateral sidewall of the casing. When inserting an HDD into the casing and the HDD abuts against the aligning panel, the aligning panel pushes the HDD to slide laterally and align with the connector on the rear sidewall of the casing. Thus, pins on a rear end of the HDD can accurately plug into corresponding holes of the connector.
Mobile identification indicator
The invention relates to a mobile identification indicator (1) for locking and unlocking a closure device of a motor vehicle, comprising an electronic unit (6) disposed inside a housing (2). According to the invention, the housing (2) has a defined outer surface (7) on which is applied a functional coating (10), wherein the functional coating (10) comprises an information layer (11) for individualizing the identification indicator (1).
Conductive structures for microfeature devices and methods for fabricating microfeature devices
Methods for fabricating conductive structures on and/or in interposing devices and microfeature devices that are formed using such methods are disclosed herein. In one embodiment, a method for fabricating interposer devices having substrates includes forming a plurality of conductive sections on a first substrate in a first pattern. The method continues by forming a plurality of conductive sections on a second substrate in a second pattern. The method further includes constructing a plurality of conductive lines in a common third pattern on both the first substrate and the second substrate. The conductive lines can be formed on the first and second substrates either before or after forming the first pattern of conductive sections on the first substrate and/or forming the second pattern of conductive sections on the second substrate.
Printed wiring board
A printed wiring board includes an insulative resin substrate having a penetrating hole, a first conductive layer formed on first surface of the substrate, a second conductive layer formed on second surface of the substrate on the opposite side, and a through-hole conductor formed in the penetrating hole and connecting the first and second conductive layers. The through-hole conductor includes a seed layer on inner wall of the penetrating hole, a first electrolytic plated layer on the seed layer such that the first plated layer is filling the space formed by the seed layer in the penetrating hole and forming recesses at the ends of the penetrating hole, respectively, and second electrolytic plated layers filling the recesses, respectively, and the second plated layers includes electrolytic plating having an average crystalline particle diameter greater than an average crystalline particle diameter of electrolytic plating forming the first plated layer.
Method for manufacturing a double-sided printed circuit board
Disclosed is a method for manufacturing a double-sided printed circuit board (PCB) having a circuit pattern by printing a conductive paste. According to the method of the present invention, a circuit pattern that is precise and highly conductive can be formed, and a reduction in raw materials and the simplification of processes are made possible. Also, due to the printing of the conductive paste, short-circuit can be prevented even when a conductive layer is bent or exposed to heat or physical impact.
Low viscosity polymeric printing solutions and electronic components bearing polyimide based upon the low viscosity polymeric printing solutions
An electrical component that includes a substrate and a polymeric layer oriented in working relation with the substrate, the polymeric layer including a low molecular mass polyimide.
Method for electrophoretically depositing a film on an electronic assembly
A packaged component and a method for making a packaged component are disclosed. In an embodiment the packaged component includes a component carrier having a component carrier contact and a component disposed on the component carrier, the component having a component contact. The packaged component further includes a conductive connection element connecting the component carrier contact with the component contact, an insulating film disposed directly at least on one of a top surface of the component or the conductive connection element, and an encapsulant encapsulating the component carrier, the component and the enclosed conductive connection elements.
Double-layered transparent conductive film and manufacturing method thereof
A double-layered transparent conductive film includes: a first substrate; a first imprint adhesive layer formed on the first substrate, the first imprint adhesive layer defining a first mesh-shaped groove, the first mesh-shaped groove forming a first mesh; a first conductive layer including conductive material filled in the first mesh-shaped groove; a tackifier layer formed on the first imprint adhesive layer and the first conductive layer; a second substrate formed on the tackifier layer; a second imprint adhesive layer formed on the second substrate, the second imprint adhesive layer defining a second mesh-shaped groove, the second mesh-shaped groove forming a second mesh, wherein one of the first mesh and the second mesh is a regular mesh, the other is a random mesh; and a second conductive layer including conductive material filled in the second mesh-shaped groove. During the lamination, no alignment accuracy is needed, such that the production efficiency is greatly improved. A method of manufacturing the double-layered transparent conductive film is also provided.
Method for forming copper wiring
There is provided a Cu wiring forming method for forming a Cu wiring by filling Cu in a recess, which is formed in a predetermined pattern in a Si-containing film of a substrate. The Cu wiring forming method includes forming a Mn film, which becomes a self-aligned barrier film by reaction with an underlying base, at least on a surface of the recess by chemical vapor deposition, forming a Cu film by a physical vapor deposition to fill the recess with the Cu film, and forming a Cu wiring in the recess by polishing the entire surface of the substrate by a chemical mechanical polishing.
Wiring substrate and manufacturing method of wiring substrate
A wiring substrate includes a core, a first wiring layer formed on a first surface of the core, a second wiring layer formed on a second surface of the core, and an electronic component partially accommodated in the cavity and including a projected portion projected from the first opening of the core. A first insulating layer covers a side surface of the electronic component and the first surface of the core and fills a portion of the cavity. A second insulating layer covers the first insulating layer. A third insulating layer covers the second surface of the core. The remainder of the cavity that is not filled with the first insulating layer is filled with the third insulating layer.
Provided is a display apparatus. The display apparatus includes a display panel, a flexible circuit film having a rear surface connected to the display panel, and a front surface opposite to the rear surface, the front surface having a chip mounted thereon, and a first lead bonding portion electrically connecting the chip to the display panel. The first lead bonding portion includes a first portion connected to the chip and overlying a portion of the flexible circuit film, a second portion passing through the flexible circuit film, and a third portion disposed between the flexible circuit film and the display panel on the rear surface of the flexible circuit film, where the third portion overlaps the first portion.
Embodiments of the present packages comprise a package body that is made of an insulating material, has a front surface and a back surface, and has a rectangular shape in plan view, a metal layer that is formed along a peripheral portion of the front surface of the package body and that has a frame shape in plan view, a metal frame that is joined to the metal layer with a brazing material and has a frame shape in plan view. a pair of electrode pads that are formed on the front surface of the package body surrounded by the metal layer and configured to mount a crystal oscillator, and an opening portion of a cavity opened in a position that excludes the pair of electrode pads, wherein the metal layer, the pair of electrode pads, and the opening portion of the cavity are positioned in the same plane.
Conductive film, manufacturing method thereof, and touch screen having the same
A conductive film includes a substrate, a first matrix layer, a first conductive layer, a second matrix layer, and a second conductive layer. The substrate includes a first surface and an oppositely arranged second surface. The first matrix layer is attached to the first surface. The first conductive layer is embedded in the first matrix layer. The second matrix layer is attached to a side of the first matrix layer away from the substrate. The second conductive layer is embedded in the second matrix layer. Due to the capacitor formed between the first conductive layer and the second conductive layer, it just needs to attach the conductive film to a glass panel when the conductive film is adopted to manufacture a touch screen, without bonding two pieces of conductive films.
Substrate structure and manufacturing method thereof
A manufacturing method of a substrate structure includes the following steps. A substrate including a supporting layer, two release layers and two base metal layers is provided. The release layers are disposed on two opposite surfaces of the supporting layer respectively. Each base metal layer covers each of the release layers. A first patterned solder-resist layer is formed on each of the base metal layers. A stacking layer is laminated on each of the base metal layers to cover each of the first patterned solder-resist layers. Each stacking layer includes a dielectric layer and a metal foil. Each dielectric layer is disposed between the corresponding base metal layer and the corresponding metal foil. Each base metal layer is separated from the supporting layer. Each base metal layer is patterned to form a patterned metal layer on each stacking layer. Each patterned metal layer exposes the corresponding first patterned solder-resist layer.
Electrode substrate and planar optoelectronic device
Electrode substrate for an optoelectronic device having a fabric (10) that includes electrically conductive (14; 56) as well as non-conductive (12; 50) and transparent fibers wherein the fabric is furnished over a wide area with a transparent, electrically conductive coating (26, 28, 58) in such manner that projecting or exposed portions of the electrically conductive fibers cooperate with the conductive coating in order to produce electrical contacts, wherein the conductive coating has a layer thickness that is smaller than a mean diameter of the electrically conductive and electrically non-conductive fibers of the fabric, a fabric weave of the electrically conductive fibers of the fabric is organized in such a manner that in order to create the protruding portions, the fibers encompass at least 2 of the non-conductive fibers that extend transversely in the manner of a twill weave, the fabric is embedded in the coating in such manner that portions (20; 22; 56) of the conductive fibers protrude from a non-conducting polymer material of the coating and/or are exposed, at least on one side of the coating, and the coating is applied to a polymeric, electrically non-conductive and transparent carrier film that is situated opposite the conductive coating that is applied to one side relative to the fabric.
Printed circuit board, printed circuit board assembly sheet and method of manufacturing the same
A determination mark formation portion is provided in each suspension board. In the determination mark formation portion, a recess having a given depth is provided in a base insulating layer. An outer peripheral portion is formed on the base insulating layer to surround the recess. A plating layer is formed on the outer peripheral portion. A circular hole is formed on a support substrate. The hole of the support substrate and the recess of the base insulating layer overlap each other.
Methods and circuit structures for mitigating voltage stresses on printed circuit board (PCB) in high voltage devices
A method for mitigating voltage stress on a PCB includes applying AC voltage to a multi-terminal condenser structure of a multi-layered PCB. The terminal condenser structure is formed by overlapping a plurality of conductive traces between board layers of the multi-layered PCB. A corresponding dielectric layer is disposed between the overlapping conductive traces of the board layers. The overlapping conductive traces include a first terminal, a second terminal, a third terminal, and a fourth terminal. The first terminal and the third terminal are disposed on a first layer of the multi-layered PCB, and the second terminal and the fourth terminal are disposed on a bottom layer of the multi-layered PCB. The first terminal and the second terminal are connected to a ground point, and the third terminal and the fourth terminal are connected to the AC voltage. Voltage stresses on the PCB are mitigated utilizing the multi-terminal condenser structure.
Conformal coating including embedded thermal energy absorbing material
Examples are disclosed for a conformal coating molded around power source circuitry, electrical components or at least portions of a display for a computing device. The conformal coating to include embedded microencapsulated thermal energy storage material to absorb heat generated by the electrical components.
Modular electrode device
A modular electrode device comprises a plurality of main bodies, a first electrode, at least one second electrode, at least one first connecting member and two second connecting members. Each main body has a side edge, an internal chamber and a gas inlet communicative in space between the chamber and the atmosphere. The first electrode is mounted at the side edge of one main body, while the in-serial second electrodes connected to one end of the first electrode are mounted at the side edges of the other main bodies. The main bodies are separated by the parallel third electrodes. The third, the second and the third electrodes are connected to each other. The first connecting member bridges in-serially the first electrode and the neighboring second electrode. The second connecting members are applied to both opposing end of the in-serial combination of the first and the second electrodes.
Radiography control apparatus and radiography control method
A radiography control apparatus according to the present invention includes an examination order acquiring unit configured to acquire an examination order through a network, a search condition specifying unit configured to specify a search condition for acquiring the examination order, and an imaging preparation unit configured to perform imaging preparation processing in a case where a result of the acquisition by the examination order acquiring unit satisfies an imaging start condition.
Imaging system gantry
An imaging system (100) includes a stationary gantry (102), a rotating gantry (104) that rotates around an examination region about a z-axis, an annular support (106) that is statically affixed to the stationary gantry and that rotatably couples the rotating gantry to the stationary gantry, and a radial compliant ring (108) disposed between the annular support and the rotating gantry. In a variation, the imaging system also includes an axial compliant ring (112) disposed perpendicular to the radial compliant ring, statically affixed to the annular support and extending in part in a recess (206) of the rotating gantry.
Control method of mobile device
A control method of a mobile device that controls one or more pieces of lighting equipment that illuminate a space includes: displaying a scene configuration screen that includes a configuration screen for configuring a new scene, and a configuration finish button; transmitting to the one or more pieces of lighting equipment a control signal based on configuration information indicating a lighting state configured by user operations on the configuration screen; activating the image capture unit after the configuration finish button is selected; storing in memory the configuration information from when the configuration finish button was selected as configuration information for the new scene, and also storing an image acquired by the image capture unit as a scene icon of the new scene; and displaying a new scene selection screen that includes the scene icon of the new scene.
Illumination control system, control apparatus, and illumination control method
Illumination control system 1 includes illumination apparatuses 10 and control apparatus 20 for controlling them. Each illumination apparatus 10 includes: communication unit 101 that performs wireless communication with control apparatus 20; and controller 102 that receives from control apparatus 20 instruction on operation and causes illumination apparatus 10 to perform the instructed operation. Control apparatus 20 includes: communication unit 201 that establishes connection to perform wireless communication with illumination apparatuses 10; display unit 202 that displays an icon representing target illumination apparatus 10; second controller 203 that transmits instruction on operation of target illumination apparatus 10 to enable a user to visually confirm target illumination apparatus 10; receiver 204 that receives from the user an identifier identifying a group of target illumination apparatus 10 in association with the icon; and registration unit 205 that registers group information indicating the identified group and connection information in association with each other.
Self-dimming vehicle headlights
A system by which high beam lights on motor vehicles are automatically dimmed when a similarly equipped vehicle is approaching from an oncoming direction utilizes transmitted radio frequency (RF) signals between vehicles which operate at a preset range. Vehicles equipped with the system also comprise front, rear, and side vehicle sensors to differentiate RF signals transmitted from oncoming or trailing vehicles. A receiving antenna portion of the system picks up an RF signal, verifies there are no proximal side or trailing vehicles, and deactivates the high beam circuit for a preset period of time. All vehicles equipped with the system provide an RF signal having a digital identification code to prevent interference. The system is preferably introduced as a retrofit kit for installation upon existing vehicles; however, the system may also be incorporated on new vehicles.
Intelligent lighting system and integrated circuit for determining ambient light intensity
One aspect of the present disclosure relates to an intelligent lighting control system for controlling a lighting LED array. The intelligent lighting control system includes: (a) an intelligent power control configured to allow an operator to control the lighting of an intelligent lighting system, (b) an AC power source configured to provide AC power to the intelligent lighting system, (c) an intelligent power supply configured to combine the control signal from the intelligent power control and AC power supply from the AC power source, (d) an intelligent lighting system configured to provide lighting through a lighting LED array, and (e) a DC power supply configured to provide DC power supply to control circuits and the lighting LED array.
Combined digital modulation and current dimming control for light emitting diodes
A method includes providing an input signal identifying a desired brightness for one or more LEDs to first and second parallel control paths. The method also includes generating a digital modulation control signal using the first control path, generating a current control signal using the second control path, and driving the one or more LEDs using the control signals. The method further includes performing compensation in at least one of the control paths to compensate for an increased efficiency of the one or more LEDs. Generating the control signals could include (i) adjusting the digital modulation control signal while maintaining the current control signal at a substantially constant value for a range of lower LED brightness values and (ii) adjusting the current control signal while maintaining the digital modulation control signal at a maximum value or within a range of maximum values for a range of higher LED brightness values.
LED driver with external temperature-compensated illumination control signal modulator
The present invention concerns LED drivers and is in particular directed to signal overlay for feature addition to an existing LED driver. Specifically, the invention is directed to an apparatus (200) for operating a LED driver (100), to a method of operating a LED driver, to a computer program for operating a LED driver and to a LED driver unit. The apparatus (200) is capable of overlaying an overlay signal (digital or analogue) to a control signal (164) of the LED driver (100) in dependence of external control information (256). The control signal (164) is provided to the LED driver at a control signal inlet (105). By overlaying the overlay signal, the apparatus (200) modulates the control signal (164) and provides a modulated control signal (164) to the same control signal inlet (105).
Standby power for LED drivers
Methods, devices, and circuits are disclosed for regulating a first parameter of one or more LEDs. The methods, devices, and circuits further disclose switching, in response to an indication of a dimmer interface, from regulating the first parameter of the one or more LEDs to regulating a second parameter below a light generation threshold of the one or more LEDs, wherein switching from regulating the first parameter to regulating the second parameter causes the one or more LEDs to enter a non-light generation mode.
Dimming apparatus for LEDs
A dimming way without turning on/off is to change output voltage for LED or OLED lamp corresponding to dimming percentage without turn on and off LED or OLED lamp; The dimming control signal can come from a keyboard, a phase dimmer, a dimmer button or a computer; The dimming control signal can be sent to controller through PWM signal, phase dimmer or I2C; The output load can be LED lamp or OLED lamp.
LED lighting controller
A switch mode power supply controller provides power to a pair of light sources. The controller includes a low voltage programmable current source and adjusting elements for independently adjusting the current to the LED light sources. The controller also includes a first communication port for receiving a communication from an external device, such as a dimmer, or from another power supply controller; and a second communication port for sending a communication to a third power supply controller. These ports provide an upstream and downstream communication capability through a chain of controllers so that input from a device can be communicated upstream and downstream.
Adaptable driver circuit for driving a light circuit
Driver circuits (20) for driving light circuits (21) comprising light emitting diodes are provided with converters (22) for converting input signals into output signals comprising pulses per cycle. The converters (22) comprise adapters (33) for, in response to differences between measured amplitude values of the input/output signals and nominal amplitude values of the input/output signals, adapting widths of the pulses. Then, signals having relatively precise amplitudes are no longer required. Said adapting may comprise increasing/decreasing the widths in case the measured amplitude value is smaller/larger, respectively, than the nominal amplitude value. The measured amplitude value divided by the nominal amplitude value is equal to a correction value. An adjusted duty cycle of the output signal may be made equal to a nominal duty cycle of the output signal divided by the correction value. Said adapting may be performed in a production/testing process environment.
Planar light emitting device
A plurality of electric-power-supply units are formed along one side of a transparent substrate that describes a rectangular shape in planar view, and an electric-power-supply unit is formed along a side parallel to the one side. A connecting substrate is connected to the electric-power-supply unit by a connecting member. On the connecting substrate are formed five connecting electrodes on a main surface opposing the electric-power-supply units, and five connecting terminals on a main surface of the side opposite the main surface of the connecting substrate opposing the electric-power-supply units. The five connecting terminals and the five connecting electrodes are electrically connected by an anode bus line or a cathode bus line. The electric-power-supply units are electrically connected to each other via the anode bus line of the connecting substrate, and the electric-power-supply units are electrically connected to each other via the cathode bus line of the connecting substrate.
Induction heating apparatus capable of avoiding unstable heating due to limitation of heating output
When the control unit makes both the first and second inverter circuits operational, the control unit controls the first and second inverter circuits by duty control such that an average heating output from the first inverter circuit reaches a predetermined first target heating output, and an average heating output from the second inverter circuit reaches a predetermined second target heating output. When the control unit makes one of the first and second inverter circuits operational in an automatic heating mode for automatic heating control according to a predetermined heating output sequence, the control unit inhibits the first and second inverter circuits from being controlled by the duty control.
Radio over ethernet for radio access network and cloud-RAN
An architecture for transporting radio samples, compressed samples or pre-processed radio samples in symbol form across a communication network, including a packet switched network such as Ethernet. Further, the conversion of the radio samples from streaming data to a packetized format can also be performed. Processing of radio samples can be performed in a centralized location, where the centralized location can service multiple radio heads that are located across a large geographical area. This centralized processing can be referred to as Cloud-RAN. The radio heads can also perform pre-processing to reduce effective data rates across the communication network. Further, one or more of the components of the communication network can perform timing synchronization utilizing, for example, Synchronous Ethernet (SyncE) and/or IEEE 1588.
Wireless communication system and mobile information terminal
Disclosed is a wireless communication system capable of easily reconnecting a mobile information terminal and a base unit when a user returns home and letting the user know missed incoming call information or the like. To this end, when being unable to receive a signal from the base unit, the mobile information terminal enters into a sleep state, and when a predetermined operation is performed, the mobile information terminal searches for the base unit, and when reconnecting to the base unit, the terminal displays information on an item transmitted from the base unit on an operation display section. Thus, even when the user returns home but forgets switching an operation mode, the mobile information terminal searches for the base unit as soon as the predetermined operation is performed, and can obtain necessary information from the base unit at home by a simple operation when the user desires the information.
Link failure recovery method and apparatus
Embodiments of the present invention disclose a link failure recovery method and apparatus. The method includes: first receiving, by a primary base station, failure report information sent by a user equipment, acquiring, according to the failure report information, an identifier of a DRB that needs to be reconfigured, and reconfiguring a parameter for the DRB that needs to be reconfigured; and then sending, by the primary base station, a first reconfiguration message to the user equipment, so that the user equipment reconfigures a failed DRB according to the first reconfiguration message. The present invention is applicable to the field of communications systems.
Method and system for converging call
A method for converging a call is disclosed. A non IP-Multimedia-Subsystem (IMS) network is provided with a non IMS network interworking device, by which the non IMS network is converged with a Voice over Internet Protocol (VoIP) network. The method further includes: when the non IMS network determines that a callee receiving a call request is a convergence call user, the non IMS network forwards the call request to the VoIP network; and the VoIP network initiates a call to the callee. A system for converging a call which implements the aforementioned method is further disclosed. The disclosure takes full advantage of the service characteristic of the convergence network, so as to supply users with convenient service access implementation and reduce the service charge.
Radio communication terminal and communication method
Provided are a radio communication terminal capable of causing a communication application to speedily find out whether D2D communication is possible by using a radio access network such as LTE. A terminal 400A includes a terminal finding unit 405 configured to find a candidate terminal capable of executing direct communication with the terminal 400A, a phonebook processing unit 420 configured to obtain direct-communication phonebook data containing an identifier of the candidate terminal found by the terminal finding unit 405, based on regular phonebook data containing an identifier of another radio communication terminal and being associated with the terminal 400A, and a direct communication execution unit 430 configured to execute direct communication with a counterpart terminal (e.g., a terminal 400B) indicated in a communication request from a communication application 410A, 410C, when the counterpart terminal is contained in the direct-communication phonebook data as the candidate terminal.
Establishing wireless communication via proximity detection
The present disclosure relates to computer-implemented systems and methods for wireless communication via proximity detection. The method may include determining, by a computer via a plurality of induction coils in a proximity transponder, a magnetic field emitted from a base station. The computer may include one or more processors, a radio transceiver, and the proximity transponder. The method may also include transmitting, by the proximity transponder to the base station in response to the magnetic field, identification information. Additionally, the method may include receiving, from the base station, a verification of the identification information. The method may also include establishing, by the radio transceiver based at least in part on the verification, a radio connection with the base station.
Skypoint for mobile hotspots
A system and method for dynamically planning a network is presented. One method may begin by determining network parameters for connecting nodes to a network and decision variables associated with radios and/or nodes in the network. Constraints may be established to narrow possible values of the network parameters and/or the decision variables. The constraints may be based on one or more of: values associated with connecting a radio to a node in the network, values associated with connecting two nodes in the network together over a communication link, whether a node can connect to a GIG node and a flow balance in the GIG node. To find possible links in the network that are optimal, the method may minimize an equation based on the network parameters, constraints and decision variables to determine optimal communication links between pairs of nodes in the network, pairs of nodes and radios and/or pairs of radios.
Method and device for random access in wireless communication system supporting multi-carrier wave
Provided are a method and device for random access in a wireless communication system supporting multi-carrier wave. The method includes: transmitting a random access preamble on the first secondary serving cell (SCell) to a base station, receiving a random access response from the base station, transmitting uplink data to the base station by using an uplink grant included in the random access response, and receiving a contention resolution message from the base station on the serving cell on which scheduling information on the first SCell is transmitted.
Device and method for communication using a common identifier
A communications device, communicating data via a mobile radio network, includes a transmitter/receiver communicating data to/from a mobile radio network via a wireless access interface, and a module storing information identifying the communications device to the mobile radio network, the stored information including a same common identifier in each of an associated group of communications devices, the common identifier to establish communications sessions to communicate data to/from any of the associated communications devices. The group of communications devices may communicate machine type communications for a particular application, for example disposed in a vehicle, to report certain parameters. With spatial proximity of the communications devices, each can receive control plane signalling data and accordingly communication of signalling data is as if broadcast to a local environment in which the group of communications devices are disposed, to save communications bandwidth proportional to the number of devices in the group.
System and method for simultaneous co-channel access of neighboring access points
A system and method for overriding Carrier-Sense-Multiple-Access/Collision-Avoidance (CSMA/CA) and virtual carrier sense, without harming the traffic that occupies the channel is described herein. Further provided herein are measurements and qualifying criteria for performing the aforementioned channel sharing. The system and method may be based, for example, on opportunistic spatial isolation of nodes from each other and selectively implementing ultra-fast link adaptation.
Systems and methods for efficient traffic offload without service disruption
Methods, systems, and devices for offloading traffic flows without service disruption are disclosed herein. User equipment (UE) is configured to receive an indication that a current packet data network (PDN) connection can be optimized. The current PDN connection is established over a first PDN gateway (PGW). The UE requests connection over a new PDN connection to a same type of service as the current PDN connection without releasing the connection over the first PGW. The UE routes new traffic flows over a second PGW corresponding to the new PDN connection and routes old traffic flows over the first PGW.
Mobile station aggregation of acknowledgments and negative acknowledgments in wireless networks
Various example embodiments are disclosed herein. According to one example embodiment, a method may include determining, at a base station in a wireless network, an uplink channel quality for a mobile station, sending an acknowledgment/negative acknowledgment (ACK/NAK) aggregation indicator to the mobile station based on the determining, sending a plurality of data bursts to the mobile station, and receiving at least one aggregated ACK/NAK report from the mobile station.
System and method to allocate frequency dynamically based on priority of quality of experience (QoE) in 3GPP LTE heterogeneous network
A method and system to dynamically allocate a frequency based on a priority of quality of experience (QoE) is disclosed. A method to dynamically allocate a frequency may include: securing a predetermined frequency band and a bonus frequency band for a macrocell; allocating the predetermined frequency band and the bonus frequency band to a macro terminal located in the macrocell; allocating the bonus frequency band based on the priority of service in a subsequent time slot when a frequency band comprising the predetermined frequency band and the bonus frequency band is not allocated to the macro terminal.
System and method for dropping and adding an air interface in a wireless communication system
A device and method for dropping an air interface is disclosed. In one embodiment, the method comprises communicating over a first air interface and a second air interface, determining an operational parameter based at least in part on a characteristic of the first air interface, and dropping the second air interface based at least in part on the operational parameter. A device and method for adding an air interface is also disclosed. In one embodiment, the system comprises a processor configured to drop one of a plurality of concurrently established air interfaces and to subsequently determine that at least one predetermined criteria is met before attempting to add the air interface.
Communications apparatus and communications system using multicarrier transmission mode
A base station accommodated in a communications system for communicating with a mobile station, the base station includes: a transmitter configured to generate frequency band information indicating which frequency band of used frequency bands available in the communication system is to be used for transmission of data information with a mobile station, to transmit the frequency band information by using a specific frequency band assigned from the used frequency bands, and to transmit data information by using at least one of the frequency bands; wherein the frequency bands except for the specific frequency band, are made variable.
Base station and transmission method
A communication terminal in a multi-carrier system using a frequency bandwidth including a plurality of resource blocks, each of the resource blocks including one or more sub-carriers. The communication terminal includes a receiving unit configured to receive a signal in which a control channel is multiplexed into a single radio frame based on a number of control channels allocated into the single radio frame to use a lower coding rate by repeating transmitting without changing encoding method in which a channel other than the control channel is multiplexed in accordance with scheduling information for allocating one or more of the plurality of resource blocks to the communication terminal and a processing unit configured to perform a process on the signal received by the receiving unit.
Dynamically dedicated wireless local area network service for high definition video teleconferencing
In an example embodiment described herein is an apparatus comprising a wireless transceiver and channel selection logic coupled to the wireless transceiver and operable to select an operating frequency for the wireless transceiver. The channel selection logic is configured to reserve a dedicated channel having a special identifier. The channel selection logic is configured to have the wireless transceiver advertise the dedicated service on a normal operating frequency. The channel selection logic is responsive to receiving a request from a wireless device via the wireless transceiver on the normal operating frequency to use the dedicated channel to switch to the dedicated channel and establish communications with the wireless device on the dedicated channel.
Enhancing coordinated multi-point processing transmission through resource element muting
A system and method of signal transmission in a wireless communications network is disclosed. A coordinated transmission is transmitted from a plurality of base stations, each including a transmission point. Each transmission point is configured to transmit a cell specific reference signal in a particular set of resource elements. Additionally, a determination is made regarding which of the plurality of base stations will serve as a lead base station in the coordinated transmission and data is mapped to all available resource elements in a physical resource block, except the resource elements in which the lead base station is configured to transmit a cell-specific reference signal. Further, each remaining base station is instructed to mute transmissions in the particular set of resource elements in which the corresponding transmission point is configured to transmit a cell specific reference signal.
Method and device for allocating a channel in a decentralized trunked radio communication system
A method and device for allocating a channel in a decentralized trunked radio communication system enables efficient channel utilization. The method includes scanning at a first subscriber unit a plurality of channels to determine whether a call of interest to a first subscriber unit is active in the system (step 410). The plurality of channels is then scanned at the first subscriber unit to identify a first channel that is clear in the plurality of channels after determining that there is no call of interest to the first subscriber unit active in the system (step 415). The first subscriber unit is then tuned to the first channel that is clear (step 420).
Bandwidth management (BWM) operation with opportunistic networks
A BWM controller may be provide the capability to combine a lower speed, wide area network (WAN) that may have connectivity with an ONW that may have intermittent connectivity. This may be done, for example, to generate a multi-connection service that may provide connectivity that may take advantage of occasional high-speed ONW connection events.
Methods, systems, and computer readable media for providing triggerless equipment identity register (EIR) service in a diameter network
The subject matter described herein includes methods, systems, and computer readable media for providing triggerless EIR service in a Diameter network. One method includes steps performed at a Diameter routing agent (DRA). The steps include, receiving a registration or authentication information request at the DRA. The steps further include performing, by the DRA, an EIR lookup in response to the registration or authentication information request message. The method further includes, relaying the registration or authentication information request message to a home subscriber server (HSS) or a home location register (HLR) or responding on behalf of the HSS or HLR based on results of the EIR lookup.
Method for reduced resource usage in system synchronization, data delivery and asynchronous real-time access mobile communications systems with multiple low complexity terminals
A radio communication method and a corresponding system are described. Time frequency resources are divided into a grid of resources. For communicating with a plurality of non-synchronized terminals the timing offset of each terminal is measured and a joint message is asynchronously transmitted to a subset of terminals, wherein the subset comprises at least two terminals.
Base station, terminal, system and method for data transmitting in time-division duplex system
A base station, a terminal, a system and methods for performing data transmission in a Time Division Duplex (TDD) system are disclosed. One of the methods includes: the base station sending an uplink scheduling grant signaling to the terminal on a carrier m, and after receiving uplink data sent by the terminal through a Physical Uplink Shared Channel (PUSCH) on a carrier n, the base station sending an ACK/NACK feedback signaling corresponding to the PUSCH to the terminal on the carrier m; wherein, m≠n; a timing relationship between a subframe by which the base station sends the uplink scheduling grant signaling and/or the ACK/NACK feedback signaling and a subframe where the PUSCH is located is identical with a Hybrid Automatic Repeat Request (HARQ) timing relationship corresponding to an uplink/downlink configuration of the carrier m or the carrier n.
Method and device for controlling hand-over message transmission power in a mobile communications system
The present invention relates to a method and a device for controlling the hand-over message transmission power of a mobile station in a mobile communication system. The present invention comprises the processes of: acquiring uplink data relating to a hand-over target base station; using the uplink data to determine the maximum transmission power of a hand-over ranging message; and transmitting a hand-over ranging message having a power level below the determined maximum transmission power to the hand-over target base station.
Uplink power control for power limited terminals
Transmit power control methods and apparatus are disclosed. In several embodiments, a mobile terminal is configured to effectively ignore “UP” transmit power control commands in the event that the mobile terminal is operating in a power-limited state. In an exemplary method for controlling transmit power at a mobile terminal, a plurality of transmit power control commands are received. An accumulated power control value is adjusted in response to each transmit power control command that directs a negative adjustment in transmit power. However, the accumulated power control value is adjusted in response to a transmit power control command that directs a positive adjustment in transmit power only if the mobile terminal is not in a power-limited state. Transmit power settings for each transmission are calculated based on the accumulated power control value and the one or more radio link parameters.
Mobile communication system, mobile communication method, and radio base station
A mobile communication system of an embodiment is a system in which a plurality of radio base stations receive an uplink signal transmitted from a radio terminal coordinated with one another. Each of the plurality of radio base stations comprises: an acquisition unit that acquires a path loss between the radio terminal and the radio base station; and an interface that notifies the path loss acquired by the acquisition unit to another radio base station. At least one the radio base station of the plurality of radio base stations includes a notification unit that notifies the radio terminal of the path loss used in the transmission power control of the uplink signal, in accordance with the path losses between each of the plurality of radio base stations and the radio terminal.
Method and apparatus for determining transmission power of a secondary transmitter in a hierarchical spectrum sharing system
The present invention provides a method and apparatus for determining a transmission power of a secondary transmitter in a hierarchical spectrum sharing system. The method can comprise steps of obtaining channel quality information on a primary link from at least one primary receiver within a transmission range of the secondary transmitter; and determining the transmission power for the secondary transmitter based on the channel quality information, wherein the transmission power is matched with the channel quality indicated by the channel quality information. According to the embodiments of the present invention, a power control scheme is applied to the secondary transmitter based on the channel quality information on the primary link. In such a way, the secondary transmitter' throughput can be improved with controllable rate loss to the primary receiver and accordingly the spectrum efficiency for the whole system can be further upgraded.
Power efficient sensor accessory management through sensor subsystem
Application instructions for a sub-system processing unit are received through an application programming interface (API). The application instructions control a sub-system processing unit to process wireless messages directed to a main processing unit. A message rule may be generated based on the received application instructions and predefined conditions and actions stored in the sub-system processing unit. Responsive to receiving the wireless messages from sensors and/or tags external to the wireless terminal, an action may be performed at the sub-system processing unit according to the generated message rule to control and/or reduce processing of the wireless messages by the main processing unit.
Systems and methods for low power wake up signal and operations for WLAN
Systems, methods, and devices for wireless communications are disclosed. In one aspect, an apparatus for wireless communications includes a transceiver configured to wirelessly transmit and receive packets. The apparatus further includes a wake up circuit configured to wirelessly receive packets. The apparatus is further configured to detect reception of a wake up signal via the receiver and execute a command based on the wake up signal. In another aspect, an apparatus is disclosed, which generates and transmits wake up signals.
Method and apparatus for efficiently controlling uplink control signal of user equipment in wireless communication system
The present invention relates to a method and an apparatus for efficiently controlling an uplink control signal of user equipment in an environment where a macro cell and a repeater exist together, and the method for controlling uplink transmission power of the user equipment in the wireless communication system, according to the present invention, comprises: an obtaining step for receiving a reference signal from a base station and obtaining a channel state information value; a determining step for determining whether a scaling condition is satisfied by using the channel state information value that is obtained; a calculating step for calculating a transmission power on the basis of scheduling information when the scaling condition is satisfied; and a transmitting step for transmitting data by using the transmission power that is calculated.
Method and system for employing discontinuous reception configurations in a wireless network environment
The present invention provides a method of selecting and applying Discontinuous Reception (DRX) configurations in a wireless network environment. In one embodiment, a method includes obtaining location and time information associated with user equipment, and selecting at least one DRX configuration suitable for one or more applications miming on the user equipment from a plurality of DRX configurations based on location and time information. The method also includes transmitting information associated with the selected DRX configuration to a network entity so that the network entity applies the selected DRX configuration for the user equipment.
Method and apparatus for acquiring cell identifier in radio communication system
A method for acquiring a cell identifier by a source cell in a radio communication system is provided. The method includes receiving information about a new cell from a User Equipment (UE) in the source cell, acquiring an Evolved Universal Terrestrial Radio Access (EUTRA) Cell Global Identifier (ECGI) of the new cell from the UE, if it is determined based on the information about the new cell that there is no neighbor relationship with the new cell, determining whether a Public Land Mobile Network (PLMN) Identifier (ID) (PLMN ID) in the ECGI is included in a mapping table between a primary PLMN ID and a shared PLMN ID, and acquiring an X2 Internet Protocol (IP) address of the new cell from an Evolved Packet Core (EPC) according to the determination results.
Method and apparatus for executing an application by using a communication address
A method and apparatus for executing an application by using a communication address may be implemented as terminal that includes a service providing unit that provides an application, and an IP address managing unit that assigns an IP address to the application. The terminal may also have a communication unit configured to operate as a Wi-Fi Host Access Point (AP) unit or as a Wi-Fi client unit. When the communication unit operates as a Wi-Fi Host AP unit, it uses the assigned IP address to carry out its WiFi host AP functions. When the communication unit operates as a Wi-Fi client unit, it searches for an accessible Wi-Fi Host AP, identifies a service set identifier (SSID) and an IP address of a Wi-Fi Host AP, and accesses the Wi-Fi Host AP.
Information providing apparatus and information providing method, wireless communication apparatus and wireless communication method, computer program, and wireless communication system
To reduce power consumption for communication operation wherein a client terminal at the time of offline searches a base station or access point.A server uses a communication information predicting algorithm to predict a location or time whereby the server becomes an offline state over a movement route of a client terminal, and a location or time whereby the server returns to an online state, and informs to the client terminal. The client terminal suspends a communication function when reaching the informed offline predicted location or time. The client terminal at the time of offline determines that the current location or time has reached an online return predicted location or time using location recognition or point-in-time recognition, and restores the communication function.
Power efficient small base station scanning and acquisition
Cellular network may introduce a large number of limited access/limited range (“small”) base stations deployed by end-users such as home base nodes (HNBs) or Femtocells that provide access to access terminals (ATs) or user equipment (UE) to a core network. A selective discovery approach enables UE to discover and to use a small base station without wasting power to discover an alien base station or to search when not within range of any open small base station. Discovery can entail location-dependent determination (e.g., macro base station triangulation, global positioning system, local broadcast channel, etc.) of being within range of an open femtocell whose identity was manually learned, accessed via a distributed neighbor list, etc. The UE can advantageously tolerate small changes in location without having to relearn the identity of the femtocell. The type of access afforded is advantageously communicated to end user via a display indicator.
Apparatus for providing information about available service using proxy server and method therefor
An apparatus for providing information about an available service using a proxy server and a method thereof. The apparatus includes an available service checker, a database, an available service searcher, and an available service broadcaster. The apparatus may provide information through the proxy server regarding available services of a device that is not currently connected to a basic service set (BSS), thereby preventing generation of excessive amount of traffic.
Operation regulation method, operation regulation program product, mobile terminal, vehicular apparatus, and vehicular communication system
A mobile terminal requiring operation regulation is communicably connected with a vehicular apparatus via wireless communication and executes an application for cooperating with the vehicular apparatus. An operation regulation method performed by the mobile terminal and the vehicular apparatus includes transmitting, from the vehicular apparatus to the mobile terminal, vehicle information indicating whether a vehicle including the vehicular apparatus is in a traveling state, determining, with the mobile terminal, whether the vehicle is in the traveling state based on the vehicle information when the vehicular apparatus is connected with the mobile terminal based on handsfree communication protocol, and, when the mobile terminal determines that the vehicle is in the traveling state, performing, with the mobile terminal, a regulation process for regulating one of (i) an operation of the application for cooperating with the vehicular apparatus or (ii) all or part of functions provided to the mobile terminal.
Communication apparatus, communication method, program and storage medium
A communication apparatus includes: providing means for providing communication parameters to a receiving apparatus to be provided with communication parameters; determination means for determining whether there are a plurality of providing apparatuses that provide the communication parameters; and notifying means for, in case the determination means determines that there are the plurality of apparatuses, notifying the receiving apparatus that the providing means have already provided with the communication parameters of a notification that instructs the apparatus to halt the usage of the provided communication parameters.
Method for preferred access to communication device on a communication system
A method and a communication device for accessing a communication system are disclosed. The method includes determining that an application requesting access to the communication system requires preferred access to the communication system and requesting access to the communication system using a least preferred access channel from a preferred roaming list comprising a plurality of access channels. An access node of a communication system is further disclosed. The access node includes a processor to determine whether the communication system supports a preferred access to the communication system by at least one authorized communication device of the plurality of communication devices, and transmit an indication that the communication system supports the preferred access to the communication system by the at least one authorized communication device.
Apparatus and method of changing access point in wireless network system
An apparatus and method of changing an access point in a wireless network system is provided. The wireless network system includes a first access point existing on a wireless network, and a user terminal accessing the first access point. The first access point transmits information on a second access point, which is one of a plurality of access points accessible by the user terminal, to the user terminal, and the user terminal determines whether to access the second access point and accesses the second access terminal in accordance with the determination result.
Seamless handoff and call binding
The invention provides a method and system for third party eavesdropping to communications of a target wireless electronic device. The method comprises: providing a private network system adapted to intercept communications of a target wireless device; obtaining communication characteristics of a target wireless electronic device; instructing the target wireless device to obtain measurements of public network cells in the vicinity of the target device; instructing the target device to report the measurements to the private network system; and activating the private network to eavesdrop on communications occurring on the target wireless electronic device by impersonating the target wireless device. While communication occurs on the target device, a handover is induced to a public network cell, and the handover is followed to continue eavesdropping on the communication.
Method and apparatus for handover in heterogeneous cellular networks
A method at a user equipment for handover from a serving cell to a target cell, the method comprising sending a measurement report to the serving cell; and transmitting a reconfiguration complete message to the target cell; wherein the measurement report includes downlink timing measurements for the target cell. Further, a method at a source network element for handover of a user equipment from the source network element to a target network element, the method comprising receiving a measurement report from the user equipment; sending a handover request to the target network element; receiving a handover request acknowledgement from the target network element, the handover request acknowledgement including a reconfiguration message and at least one downlink subframe in which an uplink grant is expected at the target network element for the user equipment; and forwarding the reconfiguration message and at least one downlink subframe to the user equipment.
Methods and nodes for radio communication with a user equipment
The present invention relates to a method in a radio equipment unit for downlink radio communication with a UE of a radio network. The radio equipment unit provides radio communication with UE in at least one cell, and is connected to a radio equipment control unit controlling the radio communication. The method comprises receiving (610) from the radio equipment control unit: baseband processed user related data and information indicating a frequency radio resource allocated for a transmission to the UE. The method also comprises generating (620) cell defining signals for the cell of the UE, and transmitting (630) the generated cell defining signals added to the baseband processed user related data to the UE, using the indicated frequency radio resource. The present invention also relates to a corresponding method in the radio equipment control unit and to the units themselves.
Wireless communication apparatus and transmission frame control method
A wireless communication apparatus which switches between plural wireless communication schemes that are different from each other in maximum transmission frame size includes a means for selecting one of the plural wireless communication schemes, a means for generating a transmission frame, a means for dividing the generated transmission frame if the size of the transmission frame is larger than a maximum transmission frame size of the selected wireless communication scheme, and a means for transmitting the transmission frame or divided transmission frames according to the selected wireless communication scheme.
Managing communications within a wireless communications network
A wireless communications network for communicating with wireless communications devices, the wireless communications network comprising a processor arranged to: measure congestion for each wireless communication link between a plurality of the wireless communications devices and the wireless communications network; and prioritize scheduling of communications with the plurality of wireless communications devices dependent upon the measured congestion.
Power consumption management in a radio access network
A method for managing power consumption of a radio access network. The method includes: defining a cluster including at least two radio resource units of the radio access network; defining a parameter indicative of a performance of the cluster and of a power consumption of the cluster, the parameter being expressed as a function of traffic throughputs carried by the radio resource units of the cluster; calculating optimum traffic throughputs as values of the traffic throughputs carried by the radio resource units of the cluster which optimize the parameter; and distributing traffic amongst the radio resource units of the cluster such that the radio resource units of the cluster carry the calculated optimum traffic throughputs.
Capacity increasing devices and methods for wireless communication
The present patent application improves DARP by allowing multiple users on one time slot (MUROS). It comprises means and instructions for sharing signals on a single channel, comprising setting up a new connection, allocating a new time slot if there is an unused time slot on a channel frequency, selecting an used time slot for the new connection to share with an existing connection if there is not an unused time slot on the channel frequency, and selecting a different training sequence code for the new connection if the used time slot on the channel frequency has been selected for the new connection to share with an existing connection.
Test device and test method
To provide a test device and a test method which enable a tester to easily check the allocation of physical channels when testing a mobile communication terminal which performs communication using a time division duplex system and a code division multiple access system.An allocation status display control unit of a test device generates an allocation status display screen 46 indicating the correspondence of the physical channels to a time slot and a channelization code for each connection status on the basis of allocation setting information which is acquired and specified by a setting information acquisition unit. Therefore, the operator can easily check an allocation status for each connection status.
Method and apparatus for measuring interference in a telecommunications system
A receiving unit or a transmitting unit of a wireless network, for facilitating noise and interference measurements on an air interface and a method of using the receiving/transmitting unit for measuring noise and interference. The receiving unit includes: a network interface which obtains information relating to a time-varying layout of a silent resource element (RE) grid; an electronic memory having code in communication with the network interface which stores the information; and a processing unit in communication with the electronic memory that takes a presence of a silent RE grid into account in the reception of a control or a data channel.
Systems and methods for predictive analysis of technical support issues
Embodiments of the present invention generally relate to a method and system for predictive analysis of technical issues in a technical support environment. In some embodiments, the method may include receiving information associated with a first technical support issue reported by a customer, associating at least one category with the first technical support issue based on an analysis of the received information and a history of system operation status data, and transmitting at least a portion of the information associated with the first technical support issue and the associated at least one category to an agent workstation.
Method for coordinated transmission in a plurality of cells of a wireless communication system
A method for coordinated transmission in a plurality of cells of a wireless communication system, wherein a user equipment triggers coordinate transmission of a plurality of cells if it detects an interference condition between signals received by the plurality of cells, the user equipment detecting the interference condition based on a radio quality metric dynamically set by the network and triggering coordinate transmission by transmitting a trigger signal to at least a cell of the plurality of cells. A radio equipment and a user equipment for use in a wireless communication system can implement coordinated transmission with the method.
Cellular communication network through unmanned aerial vehicle cellular communication links
A cellular communication network utilizes cellular communication receivers and cellular communication transmitters in a plurality of unmanned aerial vehicles that are deployed or flown in a point to point line or mesh like environment enabling a ground to air, air to air and air to ground cellular datalink communications network.
Coordination of spectrum usage rights among entities
Systems, methods, and apparatuses are directed to coordination of spectrum usage rights among entities. In one embodiment, logic may be configured to receive, from a first entity, spectrum information relating to a first frequency range available for allocation, and store the spectrum information in a database. The logic may also be configured to receive a request for allocation of at least one frequency range to a second entity, and query the database for at least one frequency range available for allocation to the second entity based on the allocation request. The logic may further be configured to determine that the first frequency range is available to satisfy the allocation request based on the query and the storage of the spectrum information, and allocate the first frequency range to the second entity based on the determination that the first frequency range is available to satisfy the allocation request.
Method of protecting a mobile-telephone-type telecommunication terminal
A method of protecting a telecommunication terminal having a chip-card-type personal component which is required for telecommunication network access. The terminal includes a processing unit, at least one operating memory element containing the information necessary to the operation of the terminal, i.e. a terminal operating program, and the data necessary to the program. The method involves: a) encrypting the contents of the operating memory element of the telecommunication terminal using a pre-determined key K which is necessary for decryption; and b) allowing the terminal to commence decryption once the terminal has been started with a start-up program that is saved in a secure memory element and once the key for decryption has been calculated by same.
Method and system for creating a mobile internet protocol version 4 connection
A method for creating a unique and secure mobile internet protocol version 4 connection for a packet data network is provided. The method includes generating an extended master session key to create a mobile internet protocol root key. The method also includes creating a mobile internet protocol security parameter index based on the mobile internet protocol root key and an access point name. The method further includes deriving a mobile node home agent key based on the access point name. Furthermore the method includes associating the derived mobile node home agent key to the created security parameter index. Moreover the method includes providing the unique and secure mobile internet protocol version 4 connection to transfer data for the packet data network connectivity.
Radio base station, mobile station, communication controller, and communication control method
A radio base station includes: a category acquisition unit configured to acquire one or more mobile station categories indicating capability of a mobile station with which to communicate; a category determination unit configured to determine a mobile station category to be applied to radio communications with the mobile station from the mobile station categories acquired by the category acquisition unit to correspond to one of parameters to be used in rate matching processing of the mobile station; and a category notification unit configured to notify the mobile station of the mobile station category determined by the category determination unit.
Memory system and method of controlling memory system
According to an embodiment, a memory device includes a nonvolatile first memory, a nonvolatile second memory, a first controller, and a second controller. The first controller is configured to write, to the first memory, data received over a short-range radio communication by using power generated in the short-range radio communication. The second controller is configured to execute, at a startup of the memory device, a transfer process of reading a file written in the first memory and storing the read file to the second memory.
Dynamic configuration of subscriber data, such as data for subscribers of mobile device services
A system for registering a mobile device located in a network outside a device's home network is described. In some examples, the system receives a message including contents associated with a location of the mobile device, and extracts the contents of the received message. The system matches the extracted contents to one or more rules associated with an adjustment of subscriber data within a registration database for the home network, adjusts the data, and registers the mobile device having the adjusted data.
Method and apparatus for adjusting device persona
A system that incorporates the subject disclosure may obtain presence information associated with a plurality of communication devices of a user, obtain operational capability information and usage profiles for the plurality of communication devices, obtain state information for each of the plurality of communication devices, and adjust a first device persona of a first communication device based on the presence information, the operational capability information, the usage profiles, and the state information. Other embodiments are disclosed.
System and method for performing multi-enforcement point charging
Systems and methods for accomplishing charging operations in telecommunications networks that include multiple charging and enforcement components may include configuring a first charging and enforcement component to receive user traffic, determine usage information associated with the received user traffic, send the associated usage information to a charging system component, and send the user traffic and the associated usage information to a second charging and enforcement component. The second charging and enforcement component may be configured to receive the user traffic and usage information, compute updated usage information, and send the updated usage information to the charging system component. The charging system may use this updated usage information to ensure that the subscriber accounts were billed correctly.
Device independent caller data access for emergency calls
Device independent access to stored caller data during an emergency communications event. A call server intercepts an emergency call and determines the capabilities of a calling device. Based on calling device capability, the call server uses one or more of the following device independent methods to ascertain a caller identity, independent of a calling device: interactive voice response redirect, HTTP authentication, SIP INFO method, biometric recognition, human interaction, and alternate number dialing. A caller identity is then used to query a subscriber database for a unique caller profile database key (CPDBK) assigned to the caller (unless a CPDBK is already determined). A call server uses a CPDBK to query a caller profile database (CPDB) for relevant caller data. Relevant caller data and the intercepted emergency communications event are then passed to an emergency call processing system, whereby relevant caller data may be used to more effectively address an emergency situation.
Method of handling emergency session and related communication device
A method of handling emergency session for a mobile device in a wireless communication system is disclosed. The method comprises having an ongoing PS (packet switched) emergency session; not initiating a PS detach procedure when SIM (subscriber identity module) contact is lost; and keeping the ongoing PS emergency session active and not initiating an activation procedure.
System and method for determining and delivering appropriate multimedia content to data communication devices
Provided herein are exemplary techniques for determining and delivering, appropriate multimedia content comprising a combination of text, images, sounds, rich-text, animation, video, etc. to personal data communication devices (107), such as wireless cell-phones or wireless PDA's, based upon device specific information such as the network protocol used by the device, the network provider, the device capabilities (110), the current state of the device, user specified settings, etc. An application server (109) contains an interpreter capable of executing a set of instructions to manage the delivery and receipt of appropriate multimedia and simple text content to and from personal communication devices (107). Appropriate content (104) is sent to the personal data communication device (107) based on the network protocol used by the device, the network provider, the device capabilities, the current state of the device and user specified settings under the control of the interpreter. A plurality of device capability input handlers (108) controlled by the interpreter is used to capture the device capability of the personal data communication device (107).
Alert signal control using message priority
An electronic communication system provides text or voice messages to remote receiving devices, such as cell phones or PDAs. The receiving devices include a function for determining a message priority, prior to providing any audible alert signal indicating that the message is received. If an incoming message has a priority that is lower than a necessary threshold, the function prevents the audible alert signal from being generated at the time the message is received.
Tracking locations of multicast group members within a wireless communication system
In an example, an access terminal sends a group member report to an access network, the group member report indicating a location of the access terminal and at least one multicast group, the group member report being sent before a multicast session associated with the multicast group is initiated, determines a location update rule, the location update rule being a manner in which to report location updates of the access terminal to the access network and reports location updates of the access terminal to the access network based on the determined location update rule.
Facilitating estimation of mobile device presence inside a defined region
Estimation of mobile device presence inside a defined region is facilitated. In one example, a device receives location information representing locations of a mobile device and corresponding time information for the locations of the mobile device. The device determines an estimated path of travel for the mobile device based on the location information and, based on the corresponding time information for the locations of the mobile device, determines whether the estimated path of travel traverses, at a defined time period of interest, a defined region that includes a defined portion.
User location tracking
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for receiving information from a remote system comprising one or more time periods during which a location of the client device can be tracked and monitoring the location of the client device during each of the time periods by obtaining a plurality of location coordinates from the client device during the time period and persistently storing the location coordinates on the client device.
Identification of points of interest and positioning based on points of interest
It is inter alia disclosed methods, apparatuses, systems, computer programs and computer-readable mediums for identifying a point of interest, for providing a point of interest, and for receiving a point of interest. According to one aspect of the invention, a respective position-related information collected by at least one device at a plurality of time points is obtained. One or more of the collected position-related information is represented as respective position-related points in a one- or multidimensional space. At least one point of interest is identified by detecting at least one accumulation zone from the position-related points in the space.
Method of and system for estimating position
A method of estimating the position of a user device is provided. The user device is initially in electronic communication with a positioning system controller through a communication network. The method comprises determining that a user device meets one or more proximity criteria with respect to an offline region where electronic communication between the user device and the positioning system controller, through the communication network, is expected to meet one or more failure criteria. Responsive thereto and in advance of the user device entering the said offline region, the positioning system controller transmitting local positioning data to the user device, the local positioning data comprising data concerning electromagnetic signal sources in the said offline region. The user device subsequently estimates its position while it is within the offline region by measuring signal data from a plurality of electromagnetic signal sources and processing the measured signal data and the local positioning data. The method may be used by, for example, a smartphone to estimate its position.
System for managing risk in employee travel
A system for managing risk in employee travel may notify affected users of the travel risk management system of the occurrence of a risk management event during travel. The travel risk management system may store geographic location information for a plurality of users of the travel risk management system, determine the occurrence of a risk management event, determine a geographic location of the risk management event and compare the geographic location of the risk management event to the stored geographic location information for the users. The system may execute a risk management event response in response to determining that a geographic location of at least one of the users is at the geographic location of the risk management event. The response may include transmitting a risk management event notification message to a portable computing device for each user located in the affected area.
On demand customization of mobile computing devices
Embodiments of the invention describe mobile computing device configuration processes. A device executing configuration logic may wirelessly transmit power to a mobile computing device housed within a sealed product packaging to charge a battery power supply of the mobile computing device. A short-range wireless communication link is established with the mobile computing device housed within the sealed product packaging to install a firmware image on the mobile computing device, wherein the firmware image is to be selected based, at least in part, on a geographic location of the mobile computing device. The short-range wireless communication link is then used to activate a wireless network interface of the mobile computing device housed within the sealed product packaging to connect to a boot server including an OS image for the mobile computing device to download and install.
Contact information social exchange method and system
Methods, systems, and computer storage media for a wearable device are presented. The wearable device includes a wearable housing and a transceiver attached to the wearable housing and configured to receive a first data item. The first data item is contact information or an event identifier. The transceiver is further configured to transmit a second data item. The second data item is contact information. The transceiver has an effective range of less than one meter. The transceiver is able to receive the first data item and transmit the second data item in less than three seconds. The wearable device also includes a memory configured to store the first data item and the second data item.
Network-assisted UE detection in direct mode UE-to-UE communication
Systems and methods for network-assisted device discovery for device-to-device (D2D) communications are disclosed. In one embodiment, a base station in a cellular communications network receives a D2D request from a first wireless device to establish D2D communication. In response to the D2D request, the base station selects a second wireless device for D2D communication with the first wireless device based on the D2D request and information regarding wireless devices that are available for D2D communication. The base station then transmits a D2D request acknowledgment to the first wireless device that includes information that enables the first wireless device to establish D2D communication with the second wireless device. The base station also effects transmission of a D2D reconfiguration message to the second wireless device, where the D2D reconfiguration message includes information that informs the second wireless device that the first wireless device has requested establishment of D2D communication.
Method for performing interactive services on mobile device, such as time or location initiated interactive services
A system for performing interactive services at a mobile device is disclosed. In some cases, the system receives an indication of an event, and provides interactive services to a user of the mobile device based on the event. In some cases, an indication of an event in invokes a script-based process that determines one or more actions to present to a user of the mobile device.
Wireless communication system and information providing method
A wireless communication system according to one aspect of the present invention includes a provisioning device, a gateway, and a management device. The provisioning device sets to a wireless device, provisioning information required for the wireless device to join a wireless communication network. The gateway determines, using the provisioning information set by the provisioning device, whether or not to allow the wireless device to join the wireless communication network. The management device manages join history information including the provisioning information set by the provisioning device and join information associated with the provisioning information, the join information indicating a result of the determination by the gateway, and provides the join history information to the provisioning device in response to a request from the setting device.
Method and apparatus for connection context aware radio communication management
An information handling system includes a wireless adapter for communicating with a wireless link and a storage device for storing a spatial-temporal user profile comprising wireless service usage trend data for a location where the information handling system is operating. The storage device further includes storing a spatial-temporal radio frequency profile indicating signal quality for wireless links available at the location.
Audio signal correction and calibration for a room environment
Disclosed are an apparatus and method of processing an audio signal to optimize audio for a room environment. One example method of operation may include recording the audio signal generated within a particular room environment and processing the audio signal to create an original frequency response based on the audio signal. The method may also include creating at least two iterative filters based on at least two separate frequency ranges of the original frequency response, calculating an error difference between the frequency response modified by the at least two iterative filters and the original frequency response, and applying the error difference to the audio signal.
Method and apparatus for stereo to five channel upmix
An apparatus comprising at least one processor and at least one memory including computer program code The at least one memory and the computer program code is configured to, with the at least one processor, cause the apparatus at least to perform determining a covariance matrix for at least one frequency band of a first and a second audio signal, non-negative factorizing the covariance matrix to determine at least one first weighting value and at least one second weighting value associated with the at least one frequency band; and determining a third audio signal associated with the at least one frequency band by combining the first weighting value and the first audio signal to the second weighting value and the second audio signal.
Impedance detecting device and method
The present invention discloses an impedance detecting device capable of detecting the impedance value of a load, comprising: an AC signal generating circuit for generating an AC signal; an output buffer for generating an output voltage and an output current according to the AC signal and the impedance value of the load; a current mirror for generating a mirror current according to the output current; a detection impedance for generating a detection voltage according to the mirror current; a comparing circuit for generating a comparison result by comparing the output voltage with the detection voltage; and a control circuit for adjusting at least one of a current ratio of the mirror current to the output current and the impedance value of the detection impedance according to the comparison result until the comparison result has satisfied a predetermined requirement.
Hearing aid comprising an intra-cochlear actuator
An at least partially implantable hearing aid has an input transducer (26) for capturing audio signals from ambient sound, an audio signal processing unit (32) for processing the captured audio signals, an actuator (20) for stimulating a patient's hearing, and a driver unit (44) for driving the actuator. The actuator has a rigid housing (64) closed on at least one side by a vibration diaphragm (66) that is driven by a piezoelectric transducer (68, 88). The housing is designed to float in the cochlea in direct contact with the cochlear liquids in order to couple vibration energy from the diaphragm directly into the cochlear liquids.
Method of fitting a binaural hearing aid system
A method fits a binaural hearing aid system for a person with a small or moderate asymmetrical hearing loss. The method comprises providing first hearing loss data for a right ear of a user; providing second hearing loss data for a left ear of a user; determining a difference between the first and second hearing loss data; classifying the degree of similarity of the first and second hearing loss data; determining basic hearing loss data to for each of the first and second hearing instruments depending on hearing loss classes; and calculating frequency dependent target gain values for each of the first and second hearing instruments.
Hearing aid and method of enhancing speech output in real time
A method for enhancing speech output in real time is used in a hearing aid device. The input speech is divided into multiple audio segments first. Then each audio segment is analyzed for its attribute: high frequency, low frequency, or soundless. Low frequency segments are outputted without undergoing frequency processing. High frequency segments are outputted after undergoing frequency processing. All or some of the soundless segments are deleted without being outputted. The deletion of soundless segments can reduce the delay caused by the frequency processing of the high frequency segments.
Binaural listening system with automatic mode switching
Each listening device of a binaural listening system comprises a signal processing unit for processing a signal comprising audio and for performing logic actions based on one or more control inputs, and an antenna and transceiver unit for establishing said wireless link. The transceiver unit comprises a transmit control unit allowing the transmission of first data with a first level of transmission power providing a first operating transmission range and the transmission of second data with a second level of transmission power providing a second operating transmission range, wherein said second operating transmission range is larger than said first operating transmission range. Receive control units of the listening devices are adapted to extract the first control signal from the first data received from the respective opposite listening device.
Multifunctional LED device and multifunctional LED wireless conference system
Multifunctional LED devices and multifunctional LED wireless conference systems are provided. A multifunctional LED device includes LED light source assembly, LED drive and power supply unit, controller unit, audio power amplifier unit, microphone module, wireless transceiver module, speaker unit, and/or audio codec unit. The wireless transceiver module is configured to communicate with each of a smart terminal and a second multifunctional LED device. A multifunctional LED wireless conference system includes at least two multifunctional LED devices and at least one smart terminal to read status of and to remotely control the at least two multifunctional LED devices. The smart terminal communicates with outside terminal(s) to send audio signals from the outside terminal(s) to the multifunctional LED device(s) for broadcasting. Meanwhile, the multifunctional LED devices collect ambient sound and send the ambient sound to the outside terminals via the smart terminal so that wireless conference function can be achieved.
Networked gaming headset
In an audio setup comprising at least one audio headset configurable to process audio for a first player (e.g., when participating in an online multiplayer game), a headset preset may be configured, and a token (or similar identifier) may be assigned to the headset preset. The headset preset may be uploaded into a central headset preset depository, which may be accessible by a plurality of players. The first player may share the token, via a network connection, with a second player, and second player may use the token to download the headset preset from the central headset preset depository into a second audio setup, comprising at least one other audio headset configurable to process audio for the second player. The downloaded headset preset may be utilized in configuring the other audio headset, for processing audio for the second player (e.g., when participating in the online multiplayer game).
Custom earphone with dome in the canal
An in-ear earphone featuring a housing, an audio output device carried in the housing, a hollow elongated stem formed integral with the housing and a toroidal-shaped ear dome. The stem having a first output end extending therefrom and being audibly coupled at a second input end to the output device. The ear dome integrally formed on the output end of the stem.
Apparatus and method for sound reproduction
In an embodiment an apparatus includes a graphical display panel and a loudspeaker. The panel has a display layer for displaying images and defines a plurality of apertures penetrating through at least the display layer. The loudspeaker includes a diaphragm arranged substantially parallel to the display layer. Sound from the loudspeaker diaphragm is directed outside a host device through the apertures. The speaker may be an electret or a piezo-electric speaker for thinness. There may be apertures on an opposed side of the host device housing to achieve a dipole pattern which is directed and gives acoustic privacy to the user, or a rear acoustic cavity for a monopole pattern which more broadly disperses the sound. One illustrated embodiment is selectable between monopole and dipole. Size and total area of the holes determines acoustic resistance and so a method is described to determine those from physical parameters of the display panel.
System and method for network switching
Provided is a method and system for switching between signals in an optical transport network. The method includes extracting identification data from an OTN signal at a termination sink and inserting the identification data into an Ethernet packet. The system includes a termination sink configured to extract identification data from an OTN signal and insert the identification data into an Ethernet packet.
User interface for video summaries
In one embodiment, the User Interface (UI) provides a live stream from the webcam, with markers on the side indicating the stored, detected important events (such as by using a series of bubbles indicating how long ago an event occurred). The indicators are marked to indicate the relative importance, such as with color coding. Upon selection of an indicator by the user, the time-lapse summary is displayed, along with a time of day indication. Alternately, the user can select to have a time-lapse display of all the events in sequence, using a more condensed time lapse, with less important events having less time or being left out.
Method and system for tracking and managing playback of multimedia content
A system and method for tracking and managing playback of advertisements is disclosed. The system includes a processor configured to process the multimedia content, including advertisements, and generate a video signature/audio signature corresponding to the multimedia content. The video/audio signature is subsequently embedded/superimposed on at least one of the frames of the multimedia advertisement. The system further includes a plurality of trackers placed at predetermined geographic locations and configured to detect the broadcast television signal, and determine whether the video signature/audio signature is present in the broadcast signal. Subsequently, the tracker generates a report comprising at least a time stamp indicating the time of broadcast of the advertisement having the audio/video signature.
Method and apparatus for relaying terrestrial broadcast signal
An apparatus for relaying a terrestrial broadcast signal includes a broadcast receiving unit configured to receive a broadcast signal from a terrestrial broadcast station via a over-the-air broadcast network and a broadcast streaming unit configured to stream the broadcast signal to a display terminal via a wireless communication network.
Enhanced program guide
Systems and methods described herein relate to an enhanced program guide for programs that are broadcast according to a defined schedule. Program titles included in the guide can be ordered based on a relevance rank or score, potentially with no other parameter employed in determining a position of a program title within the guide. Presentation of the guide can be independent of a time axis or dimension and a channel axis or dimension. Titles can be displayed in a manner that is independent of a start time or running length of the associated program.
System and method for targeting and rewarding a video promoter and a viewer related to social media advertising
A system and method for determining a promoter's and a viewer's remuneration for promoting and watching a video, including identifying a promoter based on an indication of a match between a profile associated with a video and a profile associated with the promoter, sending, to a viewer associated with the promoter, an invitation to view the video, receiving a message indicating that the viewer associated with the promoter has viewed the video, receiving a message indicating that the viewer associated with the promoter has answered a question regarding the video, crediting the account of the viewer associated with the promoter who viewed the video, based on the message indicating that the at least one viewer associated with the promoter has viewed the video, and crediting the account of the promoter based on the message indicating that the at least one viewer has viewed the video.
Method and apparatus for managing viewing of media content
A system that incorporates the subject disclosure may perform, for example, generating parental control information for each of a plurality of users according to options selected from a plurality of media program tags retrieved from a library, detecting a first user of the plurality of users according to biometric information of the first user, identifying the parental control information associated with the first user, tuning to a first media channel responsive to receiving a first request, receiving in the first media channel a first media program tag associated with a first media program, and enabling presentation of the first media program at a presentation device responsive to detecting from the parental control information associated with the first user that the first media program tag is included in a first list of unrestricted media program presentations. Other embodiments are disclosed.
Method and apparatus for providing embedding of local identifiers
An approach is provided for providing embedding of local identifiers. The incorporation platform causes, at least in part, a detection, at a device, of presence of one or more other devices. Next, the incorporation platform processes and/or facilitates a processing of wireless signal information, from the one or more other devices, to determine one or more identifiers associated with the one or more other devices. Then, the incorporation platform causes, at least in part, an incorporation of at least one of the one or more identifiers in one or more captured content items.
Methods and systems for presenting advertisements to particular users based on perceived lulls in media assets
Methods and systems are also provided herein for presenting an advertisement to a user who perceives a media asset to be in a lull, and refraining from presenting the advertisement to a different user who does not perceive the media asset to be in a lull. Control circuitry may determine that a first user perceives a segment of the media asset as a lull based on a first user profile. The control circuitry may determine whether or not the second user also perceives the segment of the media asset to be a lull based on a second user profile. In response to determining that the second user does not also perceive the segment of the media asset to be a lull, the control circuitry may cause the advertisement to be presented to the first user but not to the second user.
Generating montages of video segments responsive to viewing preferences associated with a video terminal
Methods, video terminals, and systems are disclosed for generating a montage of video segments for display by a video terminal. At least one video viewing preference associated with the video terminal is identified. Metadata associated with video segments in at least one video file is searched to identify video segments that correspond to the identified at least one video viewing preference. A montage of the identified video segments is generated for display by the video terminal.
Efficient authorization system for multi-channel broadcast program options
A rapid authorization system (22) for subscriber programming authorization with high levels of security can include entitlement management messages (23) that direct fluctuation of an existing package with a communication structure that may involve a primary service directive indicator (3) that is altered, transformed, or fluctuated by a secondary service directive indicator (4) or more. Terse, high entropy directives and entitlement management messages can be transmitted and a multi-channel broadcast programming fluctuation processor (9) at a multichannel broadcast receiver (8) can act to achieve the proper authorization. A conditional access system can be provided through existing, even one-way or SSL, communication pathways with high levels of security. Large subscriber base a la carte options can be provided with rapid authorization that may include nonce programming collective storage (26) for use with a fluctuation entitlement management message transmission.
One or more network based video servers is/are connected to one or more video receivers over a shared network. Pieces of video content are each encoded at a number of constant quality levels and stored on one or more of the network based servers. Responsive to requests from a receiver, video content is selected on a server and delivered over the shared network to the receiver. The system selects the quality level of the stream to deliver based on characteristics of the video stream currently being delivered, and the number of bits already buffered at the video receiver and the available network throughput. The aim is to select the video quality being delivered according to the available network throughput to maximize quality while ensuring that video data is delivered over the network in time to be decoded and displayed without interruption. Certain exemplary embodiments make that selection in advance.
Filtering live streaming contents and services
Filtering contents and services streamed live to a client device, including: establishing a private relationship between a server and the client device; determining capabilities of the client device and preferences of a user of the client device; and filtering and transmitting a list of servers, services, and contents with contents and services that are at least one of: (a) preferred; and (b) capable of being presented, viewed, played, or processed on the client device. Keywords include live media stream and content filtering.
Management of entertainment content distributed across smart wireless access points of in-flight entertainment system
Some embodiments of the present disclosure are directed to an entertainment system that includes a plurality of wireless access points. Each wireless access point includes a mass memory, at least one radio transceiver, and at least one processor. The at least one radio transceiver is configured to communicate with seat display devices. The at least one processor is configured to receive entertainment content comprising a plurality of content items, and store the entertainment content in the mass memory. The at least one processor selects a subset of content items from among the content items of the entertainment content stored in the mass memory, based on a defined rule, and downloads the subset of content items from the mass memory to a plurality of the seat display devices through the at least one radio transceiver for local storage within mass memory of the seat display devices.
Method for image interpolation using asymmetric interpolation filter and apparatus therefor
A sub-pel-unit image interpolation method using a transformation-based interpolation filter includes, selecting, based on a sub-pel-unit interpolation location in a region supported by a plurality of interpolation filters for generating at least one sub-pel-unit pixel value located between integer-pel-unit pixels, one of a symmetric interpolation filter and an asymmetric interpolation filter from among the plurality of interpolation filters; and using the selected interpolation filter to generate the at least one sub-pel-unit pixel value by interpolating the integer-pel-unit pixels.
Method and apparatus for coding video, and method and apparatus for decoding video accompanied by inter prediction using collocated image
Provided is an inter prediction method including determining a collocated block of a current block of a current image from among blocks of an image that is restored prior to the current image; preferentially checking whether a first reference list from among reference lists of the collocated block is referred to and selectively checking whether a second reference list is referred to according to whether the first reference list is referred to; based on a result of the checking, determining a single collocated reference list from among the first reference list and the second reference list; determining a reference block of the current block by using motion information of the collocated reference list; and performing inter prediction on the current block by using the determined reference block.
Feeding intra-coded video frame after port reconfiguration in video telephony
An apparatus configured for video telephony includes a receiving device configured to receive video data at a first bitrate; send a request to change the first bitrate to a second bitrate; receive a first intra coded picture in response to the request to change the first bitrate to the second bitrate; in response to detecting the second bitrate, flush the first intra coded picture from a picture buffer; and in response to flushing the first intra coded picture from the picture buffer, send a request for a second intra coded picture.
Pattern detection module with region detection, video encoding system and method for use therewith
A system for encoding a video stream into a processed video signal that includes at least one image, includes a pattern detection module for detecting a pattern of interest in the at least one image and identifying a region that contains the pattern of interest when the pattern of interest is detected, based on an analysis of the image in a plurality of domains. An encoder section, generates the processed video signal and wherein, when the pattern of interest is detected, a higher quality, such as a higher bit allocation or higher computational processing, is assigned to the region than to portions of the at least one image outside the region.
Method and apparatus for encoding video, and method and apparatus for decoding video
An apparatus for decoding an image including: an entropy decoder which obtains information that indicates an intra prediction mode applied to a current block to be decoded, from a bitstream; and an intra prediction performer which performs intra prediction on the current block according to the intra prediction mode indicated by the extracted information.
Method and apparatus for encoding video, and method and apparatus for decoding video
Disclosed are method and apparatus for encoding and decoding an image which divides a current picture into blocks with various sizes and varies a number of intra prediction modes according to the sizes of the divided blocks.
Use of frame caching to improve packet loss recovery
Various new and non-obvious apparatus and methods for using frame caching to improve packet loss recovery are disclosed. One of the disclosed embodiments is a method for using periodical and synchronized frame caching within an encoder and its corresponding decoder. When the decoder discovers packet loss, it informs the encoder which then generates a frame based on one of the shared frames stored at both the encoder and the decoder. When the decoder receives this generated frame it can decode it using its locally cached frame.
Video encoder and video encoding method as well as video decoder and video decoding method
A video encoder includes: a predictive vector selecting unit that selects candidates for a first predictive vector for predicting a motion vector in a first direction, and candidates for a second predictive vector for predicting a motion vector for a second direction; a selection information setting unit that sets first selection information for identifying the first predictive vector from among the first predictive vector candidates, and second selection information for identifying the second predictive vector from among the second predictive vector candidates; and a variable length coding unit that performs variable length coding on the first and second selection information. The video encoder applies predetermined code to the second selection information indicating that the second predictive vector candidate obtained from a motion vector in the second direction, for an encoded block corresponding to the first predictive vector is the second predictive vector.
Hypothetical reference decoder
Disclosed is a system and method of controlling a video decoder, including a reviewing channel data representing coded video data generated by an encoder to identify parameters of a hypothetical reference decoder (HRD) used by the encoder during coding operations. A parameter representing an exit data rate requirement of a coded picture buffer (CPB) of the HRD is compared against exit rate performance of the video decoder. If the exit rate performance of the video coder matches the exit rate requirement of the HRD, the coded video data is decoded, otherwise, a certain decoding degradation scheme can be applied, including disabling decoder from decoding the coded video data.
Imagers with error checking capabilities
An imager with error verification capabilities may include an array of pixels and an array of error detection circuits. The array of pixels may receive control signals that control the array of pixels to produce image pixel signals. The error detection circuits may receive the control signals and produce error detection signals. The image pixels and error detection signals may be conveyed over a readout path to image processing circuitry such as an external digital signal processor for detecting control signal errors. Each error detection circuit may be a modified copy of a corresponding pixel in the pixel array or may be a read only memory element. The array of error detection circuits may produce unique values that may be compared to expected values to detect whether correct control signals are provided to the pixel array for a given mode of operation.
Display system for automatic detection and switch of 2D/3D display modes thereof
A display system for automatic detection and switch of 2D/3D display modes thereof comprises a display device comprising a built-in display mode control chip, and a recording and playback device electrically connected to the display device. The recording and playback device comprises a built-in auto-detection software. The recording and playback device loads a playback data to be compared by the auto-detection software, and transmits a signal to the display mode control chip of the display device to achieve advantages of automatic detection and switching of 2D/3D display modes of the display device.
Depth video filtering method and apparatus
An image synthesizing method according to the present invention includes generating a depth image in a current picture by searching depth information using a plurality of color images obtained at different view points, performing filtering on the depth image using a 3-dimensional (3D) joint bilateral filter, and generating a synthesized image using the plurality of color images and the filtered depth image, wherein the 3D joint bilateral filter performs filtering on the generated depth image using color image information for at least one of previous pictures, the current picture, and subsequent pictures, and the color image information includes information on a boundary of an object in the color images and color information of the color images. According to the present invention, image processing performance may be enhanced.
Image capture apparatus that photographs a specific subject, a communication method, a storage medium and a communication system
An image capture apparatus includes a second communication control unit, a first communication control unit and a communication unit. The second communication control unit controls the communication unit so as to transmit information of a face image serving as identification information to identify a specific subject to one other image capture apparatus. The first communication control unit controls the communication unit so as to receive from the other image capture apparatus, from among images captured by the image capture unit included in each image capture apparatus, an image in which a subject designated by the transmitted face image is captured.
Automated video surveillance systems
A video surveillance system includes a plurality of video sources, at least one processing server in communication with the video sources, and at least one monitoring station viewing video from the video sources. The video sources are distributed over a target area to be monitored by the surveillance system and are attached to a video network. The processing server allocates bandwidth to the video sources with an accuracy function which provides event/object detection accuracy as a function of image/video quality transferred over the network. The image accuracy is the accuracy with which the processing server identifies features in a video image. Bandwidth is allocated by optimizing the overall event/object detection accuracy by adjusting image/video quality for each video source optionally subject to the dynamic network conditions experienced by each video source.
Vehicle with improved traffic-object position detection using symmetric search
A method for detecting the position of a target object in the environment of a host vehicle. The method may include receiving a first position of the target object as detected by an object position sensor which emits waves and receives the waves that are reflected back by the target object, and receiving an image containing the target object as detected by an image sensor. The method may also include projecting the first position on the image, and refining the first position by computing a second refined position of the target object on the basis of a symmetry search within the image.
Method and apparatus for encoding video streams
A system that incorporates teachings of the present disclosure may include, for example, an encoder having a controller adapted to receive a digital video stream with metadata, retrieve from at least a portion of the metadata a native video format, configure encoding of at least a portion of the digital video stream according to the retrieved native video format, generate from at least the portion of the digital video stream an encoded video stream conforming to a moving picture experts group format and the native video format, and submit the encoded video stream to an acquisition server for multicast distribution. Other embodiments are disclosed.
Downloadable security and protection methods and apparatus
Methods and apparatus for control of data and content protection mechanisms across a network using a download delivery paradigm. In one embodiment, conditional access (CA), digital rights management (DRM), and trusted domain (TD) security policies are delivered, configured and enforced with respect to consumer premises equipment (CPE) within a cable television network. A trusted domain is established within the user's premises within which content access, distribution, and reproduction can be controlled remotely by the network operator. The content may be distributed to secure or non-secure “output” domains consistent with the security policies enforced by secure CA, DRM, and TD clients running within the trusted domain. Legacy and retail CPE models are also supported. A network security architecture comprising an authentication proxy (AP), provisioning system (MPS), and conditional access system (CAS) is also disclosed, which can interface with a trusted authority (TA) for cryptographic element management and CPE/user device authentication.
System and method for providing retracting optics in a video conferencing environment
An apparatus is provided in one example and includes a camera configured to receive image data associated with an end user involved in a video session. The apparatus also includes a display and an optics element configured to interface with the camera. The optics element reflects the image data associated with the end user positioned in front of the display. A retracting mechanism is also provided and is configured to retract the optics element in a direction such that the camera moves to an inactive state and the optics element is removed from a view of the display from the perspective of the end user. An effective optical distance from the camera to the end user is increased by manipulating a position of the optics element. In more detailed embodiments, the camera can be configured above the display such that its lens points downward toward the optics element.
Display apparatus for displaying video input through various ports
A display apparatus displaying video input through various ports is provided. The display apparatus includes a board which is disposed behind a display module, wherein the board includes a universal serial bus (USB) port which receives a USB standard signal, a decoder which decodes a video signal from the USB standard signal and outputs a decoded signal, a video output unit which outputs a displayable video signal to the display module corresponding to the video signal, wherein the USB port is disposed at an edge of a first side of the board, and the video output unit is disposed at an edge of a second side which is different from the first side of the board. The video output unit receives video from an external apparatus such as a computer through a USB port in addition to a DVI port and D-SUB port, and displays the received video. Display apparatuses having additional ports than the DVI ports and D-SUB ports may be connected to a computer without requiring additional hardware.
Digital broadcast receiver and method for processing caption thereof
A digital cable broadcast receiver and a method for automatically processing caption data of various standards and types, is disclosed. The digital broadcast receiver includes: a demultiplexer for dividing a received broadcast stream into video data, audio data, supplementary information; a controller for determining whether caption data included in the video data is digital caption data or analog caption data on the basis of caption information included in the supplementary information, and outputting a control signal according to a result of the determining; a digital caption decoder for extracting and decoding digital caption data from the video data according to the control signal; and an analog caption decoder for extracting and decoding analog caption data from the video data according to the control signal.
Transmission apparatus, reception apparatus, communication system, transmission method, reception method, and programs thereof
[Object] To provide a transmission apparatus, a reception apparatus, a communication system, a transmission method, a reception method, and programs therefor that are capable of efficiently transmitting at least a plurality of pieces of video data included in data of a plurality of contents at the same time. [Solving Means] A switch unit (32a) of a transmission apparatus selects one of a plurality of pieces of video data supplied from a storage apparatus (42) in accordance with video data designated by a transmission data control unit (32i) and supplies it to an IF unit (32b). The IF unit (32b) transmits video data decoded by a decode unit (113) from a terminal (335). The compressed video data supplied from the switch unit (32a) is transmitted via a terminal (336). The terminal (335) is included in a first channel unit. In a case where the IF unit (32b) is an HDMI, for example, the terminal (335) is a terminal for a TMDS channel. The terminal (336) is a terminal that is included in a second channel unit and connected to a reserved line, an HPD line, and the like.
Pixel circuit with capacitor discharge indicative of number of events
A pixel circuit includes a single photon avalanche diode (SPAD) and a measurement circuit including a capacitance. The circuit is operable to discharge a known portion of the charge on the capacitance upon each detection of a SPAD event within a time period, such that the charge remaining on the capacitance at the end of the time period corresponds to the number of SPAD events detected within the time period. A time resolved imaging apparatus includes an array of such pixel circuits. A method of counting photon detection includes sensing photons with a SPAD device and discharging a known portion of the charge on a capacitance upon each detection of a SPAD event within a time period.
An image sensor includes: a plurality of pixels arranged in two dimensions, wherein at least one pixel among the pixels includes: a photoelectric conversion layer formed in a substrate; a color filter layer formed over the photoelectric conversion layer; a first shading layer formed in the same plane as the color filter layer and defining a first light transmitting region; and a second shading layer formed between the photoelectric conversion layer and the first shading layer and defining a second light transmitting region.
Image sensor with improved dynamic range
An image sensor having improved dynamic range includes a signal that is read out for a selection of pixels which act as a calibration to govern the choice of exposure levels to be applied to the rest of the array. In this way, the sensor is operable to adapt to variations in scene intensity. The pixels in the array are vertically and horizontally addressed so as to enable accounted for small areas of intensity variation across an imaged scene.
Photoelectric conversion device and imaging system
A photoelectric conversion device includes a pixel array including a plurality of pixels arranged in a matrix, and a plurality of signal processing units each associated with a respective one of columns of the pixel array and including an A/D conversion unit configured to convert a signal generated based on the pixels into a digital signal. The photoelectric conversion device further includes a plurality of groups each including a plural ones of signal processing units out of the plurality of signal processing units and a block output unit configured to receive outputs of the plural ones of signal processing units, and a driving signal transmission unit configured to transmit a driving signal for driving a plurality of the block output units. The driving signal transmission unit supplies, to one of the block output units and another of the block output units, the driving signal at respective different timings.
Image pickup device
An image pickup device may include: an image capturing unit; a reference signal generation unit; a comparison unit that compares analog signals to the reference signal and ends the comparison process at a timing at which the reference signal satisfies a predetermined condition with respect to the analog signals; a clock generation unit; a latch unit that retains the low-order phase signal as a latch signal at a timing related to the end of the comparison process; a count unit that counts a signal related to one of the low-order phase signals and generates a high-order digital signal; a detection unit that generates a low-order digital signal by sequentially comparing logic states of a plurality of bits of the latch signal retained by the corresponding latch unit and encoding the latch signal; and an arithmetic unit that performs an arithmetic process.
Image processing apparatus and image pickup apparatus where image processing is applied using an acquired depth map
An image processing apparatus has: a depth map acquiring unit configured to acquire a depth map that records information indicating a depth distance corresponding to each point on a photographed image; an in-focus position acquiring unit configured to acquire an in-focus position on the photographed image; a reference distance determining unit configured to acquire a depth distance corresponding to the in-focus position from the depth map and sets the acquired depth distance as a reference distance; and an image processing unit configured to perform image processing on the photographed image by using the depth map and the reference distance.
Method and apparatus for detection of biological conditions
A system and method for analysis of fluids, particularly bodily fluids such as saliva, uses an active, electrically-driven substrate for supporting an amalgamate of fluid and nanoparticles selected to adhere to one or more proteins. The nanoparticles affect light that is directed on or through the amalgamate. Different light directions, light polarization planes, and light wavelengths are used to obtain optical properties of the amalgamate. Once obtained, these values are compared to earlier or baseline values to determine a property of the amalgamate. Values or ranges are compared to earlier values, suitably with empirical association with maladies or conditions, to facilitate detection or diagnosis.
Image processing apparatus that performs gradation correction of photographed image, method of controlling the same, and storage medium
An image processing apparatus capable of reducing processing load by determining whether or not to perform gradation correction, according to a difference or a ratio between feature values of object areas, and generating an excellent image by performing gradation correction. An image dividing section divides an input image into a plurality of predetermined object areas. A feature value calculation section and a determination section compare the feature values indicative of features of the respective object areas, obtain a luminance level difference, and determine whether or not the difference is within a predetermined range. When the difference is within the predetermined range, an image processing section and a system controller perform area-by-area tone mapping on respective images of the areas to form a synthesized image.
Method and system for adjusting exposure settings of video cameras
A system and method to enhance dark areas of a scenes while preventing bright areas of the scenes from distorting or skewing exposure settings of video cameras. The video cameras capture images and identify bright areas in the captured images. The video cameras calculate exposure settings while excluding the bright areas in the captured images to enhance the dark areas in the captured images. Camera control parameters are then adjusted based on the calculated exposure settings.
Camera, distortion correction device and distortion correction method
An electronic zoom and distortion correction processing unit (104) performs electronic zooming and distortion correction of a distorted image by re-mapping the pixels of the distorted image. In accordance with a specified electronic zoom factor (S1), a re-mapping control unit (110) controls re-mapping by the electronic zoom and distortion correction processing unit (104) such that the correction factor (S4) of the distortion correction processing is changed in addition to the electronic zoom factor of the electronic zoom processing. By this means, the correction factor (S4) is changed in accordance with the specified electronic zoom factor (S1), and distorted images can be appropriately corrected while preventing denaturing of the images.
Imaging apparatus and device control method for self-portrait photography
A display controller includes circuitry configured to cause a display device to display self-portrait photographing information in response to receiving an indication that the display device and an imaging unit are in a predetermined positional relationship.
Mobile device for capturing images and control method thereof
Discussed is a mobile device that displays an image in consideration of a relationship among a plurality of captured images in a window mode. The mobile device includes a storage unit configure to store an image, a display unit configured to display the image, a sensor unit configured to detect a touch input to the display unit, and a controller configured to display an image in any one selected from between a navigation mode to display a plurality of thumbnail images and a window mode to display at least one image selected from among the plurality of thumbnail image, wherein the controller captures a first image and a second image having an upper and lower position relationship or a left and right position relationship to the first image from a first source, and captures a third image from a second source.
Linking-up photographing system and control method for linked-up cameras thereof
The disclosure relates to a linking-up photographing system and a control method of linked-up cameras thereof including the following steps. A first image is acquired via a first camera. A second image is acquired via a second camera and presents a field of view (FOV) which partially overlaps a FOV of the first image at least. A control look-up table is established according to the first image and the second image. A designating command specifying a region of interest (ROI) in the first image is received. A FOV of the second camera is adjusted according to the ROI and the control look-up table, and then the second camera photographs a view specified by the ROI, so as to obtain a third image. In this way, the second camera can link up and cooperate with the first camera easily.
System and method for identifying people in an image
Described herein are methods and devices employing low power wireless features to identify persons in a captured image using signals emitted from such persons' personal computing devices. As described, signals emitted from personal computing devices commonly carried on a person, such as cell phones, enable an image capture device to wirelessly connect to the personal computing devices, both directly and through a mesh network, and to obtain information about the person carrying the device. Further, the image capture device may determine the location of the personal computing devices to tag locations of persons in a captured image. Some embodiments may allow the image capture device to automatically share the captured image, such as by email, text, or social networking websites and applications. It is also possible to create a local group of users who will be identified by the image capture device, or to operate in a publicly detectable mode.
Warning system for sub-optimal sensor settings
A method includes a computing device receiving at least one sensor reading from at least one sensor on a user's device; the computing device determining at least one setting on the user's device based upon the received at least one sensor reading; the computing device detecting a change from the at least one sensor that could affect an optimal setting for the determined at least one setting; and notifying a user that the detected change has occurred.
Realtime capture exposure adjust gestures
Disclosed herein are systems, device, methods, and non-transitory computer-readable storage media for enabling semi-manual media capture. Semi-manual media capture can involve calculating optimal exposure settings in an auto-exposure loop, displaying a scene with optimal exposure settings in real time, receiving a manual adjust gesture, and adjusting the scene, in real time, based on the manual adjust gesture.
Waterproof electronic device
A waterproof electronic device with a soft polymer embedding enclosure configured to seal components embedded in the soft polymer embedding enclosure from water by direct contact of the soft polymer embedding enclosure with the components, and including an embedded microswitch operated by pressing on an outer surface of the soft polymer embedding enclosure. The apparatus may be built using various degrees of integration of its components.
Digital camera with multiple pipeline signal processors
A method includes sampling a first intensity of light with a first array of photo detectors of a digital camera. A second intensity of light is sampled with a second array of photo detectors of the digital camera. A first channel processor coupled to the first array of photo detectors generates a first image using first array data which is representative of the first intensity of light sampled by the first array of photo detectors. A second channel processor coupled to the second array of photo detectors generates a second image using second array data which is representative of the second intensity of light sampled by the second array of photo detectors. The first array of photo detectors, the second array of photo detectors, the first channel processor, and the second channel processor are integrated on or in a semiconductor substrate.
Camera interfaces for electronic devices
Approaches are described for managing the processing of image data via an electronic device. In particular, various embodiments enable a component, or combination of components, such as one or more camera interface components or other such interface components, to be integrated into a computing device (e.g., a mobile phone, a tablet computer, a wearable device, etc.) to manage the processing of image data captured by one or more cameras of the computing device. For example, one or more camera interface components, such as a camera interface circuit, can allow for coupling at least two cameras to a single input camera port of a processor component.
Systems and methods to calibrate a multi camera device
Present embodiments contemplate systems, apparatus, and methods to calibration a multi camera device. Particularly, present embodiments contemplate initiating a calibration of multiple cameras in response to a predetermined event. A calibration records current environmental conditions along with the sensor positions of each camera when focused. By recording a plurality of calibration points under a variety of imaging and environmental conditions, a more accurate synchronization of the multiple cameras' focus positions can be achieved.
Fluorescence observation device
Provided is a fluorescence observation device comprising an illuminating section that emits excitation light and illumination light onto a subject; a fluorescence-image capturing section that acquires a fluorescence image by image-capturing fluorescence generated in the subject by irradiation with the excitation light from the illuminating section; a return-light-image capturing section that acquires a return-light image by image-capturing return light that returns from the subject by irradiation with the illumination light from the illuminating section; a region extracting section that extracts a high-luminance region in which the fluorescence image acquired by the fluorescence-image capturing section has a gradation level higher than or equal to a set threshold value; and a threshold setting section that sets the threshold value higher as the gradation level of the return-light image acquired by the return-light-image capturing section increases.
Solid-state image-taking apparatus to focus incoming light into an image, manufacturing method thereof, and camera
A solid-state image-taking apparatus which have a solid-state image-taking device includes a chip of the solid-state image-taking device, an imaging lens configured to focus incoming light into an image on the solid-state image-taking device, and a material of a refraction index larger than 1, which is arranged between the chip and the imaging lens.
Zoom lens having vibration prevention function
A zoom lens includes, sequentially from an object side, a first lens group having a positive refractive power, a second lens group having a negative refractive power, and a third lens group having a positive refractive power. When zoom is changed from a wide angle end to a telephoto end, an interval between the first lens group and the second lens group increases, and an interval between the second lens group and third lens group decreases. The second lens group comprises, sequentially from the object side, a second A lens group having a negative refractive power and a second B lens group having a negative refractive power, and the second B group is displaced in a direction perpendicular to an optical axis to perform a vibration prevention function.
Image pickup unit and endoscope distal end portion including the image pickup unit
The application is directed to an image pickup system that includes a lens holder; an image pickup optical system that is secured by a portion of the lens holder; an image pickup device comprising a first surface and a second surface, wherein the first surface is nearer the image pickup optical system than the second surface in an optical axis direction, a light receiving sensor that receives light entering through the image pickup optical system, and a cover glass attached to the first surface of the image pickup device, wherein the cover glass comprising a fitting portion of the cover glass in an outer circumferential face of the cover glass.
A display apparatus which provides user interaction includes a display main body having a display screen, a camera module mounted on the display main body and configured to image a user to perform the user interaction, and a camera door configured to slidably move between a first location in which light is blocked to be incident to the camera module and a second location in which light is permitted to be incident to the camera module.
An imaging device includes a communication part that transmits an image data to an external display device, an outer barrel in which at least one lens is disposed, an imaging element, an image taking button, a power button, and a zoom switch, in which a circumferential surface part is provided at the outer barrel, in which the image taking button is disposed on a left side of the circumferential surface part, in which the power button is disposed at an upper side of the circumferential surface part, and in which the zoom switch is disposed at the circumferential surface part.
Android bound service camera initialization
A mobile device includes a camera, a user interface system, and a processor communicatively coupled to the camera and the user interface system. The processor is typically configured for running a first application. The first application is typically configured for (i) accessing the camera, (ii) upon the initialization of the first application, initializing the camera, and (iii) maintaining the camera in an initialized state as long as the first application is running. The application may be further configured for focusing the camera and maintaining the camera in a focused state as long as the first application is running.
Dynamic depth power equalization
Disclosed herein are systems and methods to control the power consumption of a battery powered platform comprising at least one depth camera. The battery powered platform may adjust the consumption of one or more systems of the depth camera, or other systems on the battery powered platform to alter the power consumption of the battery powered platform.
Software-implemented graduated neutral density filter for balancing exposure of a photograph
Techniques are described for balancing an exposure of a photograph using a software-implemented Graduated Neutral Density (GND) filter. Portions of a visual representation of a scene may be defined. Camera settings, such as aperture and/or shutter speed, may be set based on characteristics of the software-implemented GND filter and the portions of the visual representation of the scene.
Display apparatus and signal processing module for receiving broadcasting and device and method for receiving broadcasting
A display apparatus for receiving broadcasting includes a display unit configured to display an image thereon, a cover which partially covers the display unit, at least one signal connector which is configured to connect to a portable signal processing module that is located outside the cover and processes a signal to be displayed by the display unit, and receives the signal processed by the signal processing module, and a timing controller (T-con) configured to control a display timing of the signal received by the at least one signal connector.
Device and method for managing shared data, and computer-readable storage medium for computer program
A shared data managing device is provided which manages shared data by setting an access right on a first user account basis. The first user account has a first identifier and first user information on a first user receiving a first service. The device includes an obtaining portion for obtaining, from a service providing system for a second service, a second identifier of a second user account used for the second service and second user information on a second user; a pairing portion for making a pair of the first identifier and the second identifier of the first user account and the second user account that are common in the first user information and the second user information; and a transmission portion for sending, to the service providing system, the shared data, the pair made, and the access right on a first user account basis.
Image processing apparatus, image processing method, and image recording apparatus
In a case where ink having a relatively high dot height is ejected a small amount, binary data corresponding to ink having a relatively low dot height is quantized so that dot adjacency is increased.
Information processing apparatus, control methods, and storage medium for printing using short distance wireless communication
The invention allows a terminal apparatus to immediately execute print job transmission even if it is impossible to execute a direct print job by a handover. When, therefore, a mobile phone functioning as a mobile terminal performs short distance wireless communication with a printing apparatus, it receives information about peer-to-peer communication via a wireless LAN and information indicating whether the printing apparatus currently executes printing. If it is determined that another user is already executing printing, the mobile phone connects to a mobile telephone line network, and transmits a print job to a printing server for transmitting a print job to the printing apparatus.
System and method of delivering processed image data to receiver using job processing information provided to an image forming apparatus
A system and method of transmitting data to each of a plurality of receivers using job processing information regarding image forming jobs sets one or more destinations corresponding to a receiver, generates job processing information including information on the destination of the receiver to which jobs are to be transmitted, and transmitting completed jobs to the one or more destinations corresponding to the receiver using the generated job processing information. Accordingly, when processing information is generated for a particular image forming job, the locations of receivers receiving a document can be designated using only names of the receivers, and without detailed information address information regarding the receivers. Additionally, the destinations can be associated with job processing variables such as transmitters and document formats.
Network system and image processing apparatus for coordinated processing, control method thereof, and storage medium
The storage unit stores first ability information indicating an image processing ability of each of the plurality of image reading apparatuses and second ability information indicating an image processing ability of the image processing apparatus. The accepted job is instructed to execute by any one of the plurality of image reading apparatuses and specifies at least image processing. The selecting is performed on either an image reading apparatus instructing to execute the job or the image processing apparatus based on the first ability information and the second ability information. When the image reading apparatus is selected, the image reading apparatus is controlled to execute the image processing specified in the job. When the image processing apparatus is selected, the image processing apparatus is controlled to execute the image processing specified in the job on data read by the image reading apparatus.
Activation processing of information processing apparatus, method of controlling the same, and storage medium
An information processing apparatus activatable by first activation processing or by second activation processing, and method for controlling activation of the apparatus. When the information processing apparatus detects a request for causing it to activate by second activation processing upon the activation, it activates by the second activation processing when it is caused to activate due to a switch. The information processing apparatus activates by a first activation processing when it is caused to activate due to a received instruction.
Scanner that detects debris
A scanner is disclosed. The scanner detects when the to surface of the ADF scan glass is contaminated.
Communication apparatus for setting group ownership intent, communication method for setting group ownership intent, and storage medium for setting group ownership intent
A communication apparatus is capable of wirelessly communicating with a communication partner apparatus in a peer-to-peer mode. A state of supplying electric power to the communication apparatus is determined, and a group owner intent value indicating the degree of intent to operate as an access point in wireless communication is changed from a default value to a value depending on the state of the supplying electric power.
Image processing device and image processing system
A control unit in an MFP determines whether a connection request from a communication device carried by a user has been received. If the control unit determines that the connection request has been received, then the control unit issues network identification information and transmits it to the communication device. When a connection is established, the control unit automatically alters the operation screen to an operation screen related to image processing based on the information transmitted/received to/from the communication device, and accepts an operation to execute image processing.
Image reading apparatus, image reading method, image reading system, and storage medium
To read a plurality of pages, it is necessary to notify a server of completion of transfer from an image reading apparatus and transmit a next page reading input instruction from an operation terminal to the image reading apparatus again via the server. In the above reading operation, time from completion of original reading to the start of reading of the next original is prolonged, and user operability lowers. According to an embodiment of this invention, when reading images of a plurality of pages, the first image reading instruction is input from a user terminal. After that, original placement, reading start instruction, and the like for the next page are performed from an input unit provided in the image reading apparatus. This can reduce the network communication amount and improve the throughput and user operability.
System and method for providing detection of signaling-only engagements in a telecommunication network
A network server may be configured to prevent user equipment (UE) from communicating payload information across a telecommunication network without paying for the access or use of the network. This may be accomplished by the network server receiving signaling information relating to the UE from a first network component, receiving data plane information relating to the UE from a second network component, using the received information to determine a ratio between the number of signaling-only connections and the average monthly revenue associated with the user equipment device, determining whether the UE is a signaling-only device based on the ratio, and performing a responsive operation when it is determined that the user equipment device is a signaling-only device. The responsive operation may include applying a policy or charging rule to the signaling communications of the UE when it is determined that the UE is a signaling-only device.
Telephone exchange system, telephone exchanger, and incoming call switching method
Provided is a telephone exchange system including a control unit for conducting, in a case where a forwarding setting is enabled for a telephone terminal or a telephone number that receives a proxy response to an incoming telephone call to a predetermined proxy response destination under a set environment in which a proxy response function is in operation as processing relating to the proxy response, switching control for connecting the incoming telephone call directly to the proxy response destination when the incoming telephone call to the proxy response destination from the telephone terminal or the telephone number of a forwarding destination within the forwarding setting is identified.
Systems and methods for processing audio signals captured using microphones of multiple devices
Systems, methods and apparatus for capturing at least one audio signal using a plurality of microphones that generate a plurality of representations of the at least one audio signal. In some embodiments, the plurality of microphones are disposed in a multiple-microphone setting so that the at least one audio signal is captured by at least two of the plurality of microphones. In some embodiments, at least one of the plurality of microphones is a microphone of a mobile device. The plurality of representations of the at least one audio signal may be processed to obtain a processed representation of the at least one audio signal.
Handling concurrent speech
A system having one or more processors and a memory, receives both speech data from first and second participants of a session. The system outputs the speech of the first participant. The system outputs the speech of the second participant in accordance with an adjustment of the speech of a participant of the session when the speech of the second participant temporally overlaps less than a first predetermined threshold amount of a terminal portion of the speech of the first participant. The system drops the speech of the second participant when the speech of the second participant temporally overlaps more than the first predetermined threshold amount of the terminal portion of the speech of the first participant. Optionally, the system adjusts the speech of a participant of the session by delaying output of the speech of the second participant.
Bandwidth extension in a multipoint conference unit
A multipoint conference unit includes input/output ports to communicate with at least three client terminals via at least three communication channels with each communication channel communicating with one of the at least three client terminals, a memory to store data streams communicated between multipoint conference unit and the client terminals, and a processor to mix data streams received from the client terminals and to store the mixed data streams in the memory. The processor also determines a number of each of three different types of communication channels and selectively implements bandwidth extension to the communication channels based on the determination.
Identifying recorded call data segments of interest
A method and apparatus of processing a voice call are disclosed. One example method of operation may include recording at least a portion of a conference call and storing the portion of the conference call in memory. The method may also include processing the portion of the conference call to identify at least one segment of interest and processing the at least one segment of interest and creating at least one tag of interest to be associated with a third party application. The method may also include forwarding the at least one tag of interest to a third party computing device responsive to the identified segment of interest.
Active call processing and notifications
Embodiments of the invention relate generally to computing devices and systems, as well as software, computer programs, applications, and user interfaces, and more particularly, to processing active calls and stored calls in a communication network for packetized and/or synchronous communications, and to generating notifications relating to active calls and stored calls. Other embodiments relate to creating and implementing bypass rules that allow a party to bypass a set of default prompts to a the party's communication device while enabling the caller device to access functions of a call processing system.
Method and apparatus for managing contact information
A method and apparatus for managing contact information includes an electronic device detecting 302 a pair of communications by the electronic device related to a contact and parsing 304 at least one of the communications in the pair of communications to determine a time duration for a record for the contact. The method further includes the electronic device setting 306 a time duration element for the record based on the time duration to cause deletion of the record when the time duration has elapsed.
Telephone transmission system, telephone transmission server and display unit
When a user B presses a button, a display unit generates a pseudo-random number based on a clock time of a first clock and a unique ID of the display unit, then displays the generated pseudo-random number on a liquid crystal display. Upon receiving a signal from a mobile telephone, a telephone transfer server receives information generated by operating the mobile telephone. Upon receiving the information, the telephone transfer server generates a pseudo-random number based on a clock time of a second clock and the unique ID of the display unit stored in advance, and determines whether or not the pseudo-random number so generated matches the pseudo-random number in the received information. In the affirmative case, the telephone transfer server connects the mobile telephone to a fixed telephone.
Mobile phone as a one-way recorded transmitter over a cellular network
Agencies oftentimes desire to monitor personnel in the field during the course of their duties. To provide flexible monitoring capabilities to agencies, a common mobile device such as a mobile phone is converted for use as a radio-based listening system to collect and transmit audio data. Phone features and accessories are leveraged to collect additional data for transmission. Collected data is streamed or otherwise transmitted to monitoring devices at the agency or in the field for operational oversight and recordation.
A computer-implemented method of determining when an audio notification should be generated includes detecting receipt of a triggering event that occurs on a user device; generating, based on detecting, the audio notification for the triggering event; receiving, from the user device, a user voice command responding to the audio notification; and generating a response to the user voice command based on one or more of (i) information associated with the audio notification, and (ii) information associated with the user voice command.
Device and method for filtering messages
A device and method for filtering messages is provided. The device comprises: a processor; a memory storing messages, at least a subset of the messages designated as unread messages; and a touchscreen including a display. A sliding touch input is detected at the touchscreen, the sliding touch input including a change in direction, the sliding touch input terminating in a static touch input proximal an edge of the touchscreen. In response to detecting the static touch input, a list of the unread messages is provided at the display.
Proximity access and/or alarm apparatus
A method and system for securing portable electronic devices as well as access to data on the portable electronic device is described.The method consists of a proximity alarm that alarms if the physical device is carried away from the user mobile phone, or from some fixed stations.The method consists of separating the keys from the storage device where the data is stored by storing them on a FOB.When access to data is requested, the key is reconstituted in real-time by wirelessly obtaining data from the FOB and from the user, and the data is decrypted.The system provides for secure transmission of keys in real-time, and provides safeguards in case of breach of security.
Speech recognition method of and system for determining the status of an answered telephone during the course of an outbound telephone call
A system for determining the status of an answered telephone during the course of an outbound telephone call includes an automated telephone calling device for placing a telephone call to a location having a telephone number at which a target person is listed, upon the telephone call being answered, initiating a prerecorded greeting which asks for the target person and receiving a spoken response from an answering person and a speech recognition device for performing a speech recognition analysis on the spoken response to determine a status of the spoken response. If the speech recognition device determines that the answering person is the target person, the speech recognition device initiates a speech recognition application with the target person.
Mobile telephone cartilage conduction unit for making contact with the ear cartilage
A mobile telephone includes a cartilage conduction unit for making contact with the ear cartilage. The cartilage conduction unit is provided to at least one of two corner parts at an upper side of the mobile telephone. The mobile telephone can include a surface of an outer wall and a cartilage conduction vibration source arranged inward from the surface of the outer wall, the vibration of the cartilage conduction vibration source being transmitted to the surface of the outer wall, wherein when the surface of the outer wall is brought into contact with at least a part of the ear cartilage around the entrance part to the external auditory meatus without making contact with the auricular helix, the sound pressure inside the external auditory meatus at about 1 cm from the entrance part of the external auditory meatus has an at least 10 dB increase compared to the non-contact state.
Cloud edge appliances to extend cloud applications to customer premises
A cloud edge appliance (CEA) may augment the providing, by a remote cloud service provider, of cloud applications to a customer. The CEA may be installed at the customer premises and may provide a local access point for the customer. In one implementation, the CEA may provide a cloud-based application to a number of user devices, the cloud-based application being associated with functions, in which at least a first portion of the functions are implemented by the CEA and at least a second portion of the plurality of functions are forwarded, over a wide area network, to the cloud service provider.
Virtual desktop accelerator with support for dynamic proxy thread management
In particular embodiments, a method includes determining a data flow rate of the active connections at a proxy, comparing the data flow rate to a first pre-determined threshold value, and, when the data flow rate exceeds the first pre-determined threshold value, creating one or more new processing threads associated with the proxy.
Content delivery system, delivery server, receiving terminal, and content delivery method
A transmitting terminal can transmit a content held by itself to a specific receiving terminal having no email software as if using a mailer. The transmitting terminal (10) and the receiving terminal (20) are connected to a delivery server (30) via a network (4). The delivery server (30) comprises: a database (36) for registering the device ID that specifies the receiving terminal (20); a content storage (39) for temporarily storing a content transmitted from the transmitting terminal (10); and table (33, 37) for managing contents separately on a per device ID basis of the receiving terminal. The delivery server (30), when receiving a request from the receiving terminal (20), refers to the tables (33, 27) and transmits to the receiving terminal (20) a content, the transmission destination of which corresponds to the device ID of the receiving terminal (20).
Method, apparatus and system for display control
The invention discloses a method, apparatus and system for display control and belongs to Flash playing field. The method comprises: receiving an event notification message sent by a terminal; acquiring Flash objects for implementing an event; operating computing objects in the acquired Flash objects to obtain playing data for implementing the event; and sending the playing data to the terminal so that the terminal updates a Flash currently played in accordance with the playing data and plays the playing data. A server acquires and operates the computing objects in the Flash objects for implementing the event after receiving the event notification message and sends the playing data obtained to the terminal for playing. The invention avoids network resource waste due to downloading all the Flash objects to the terminal and thus saves precious network traffic of a user.
Notification of a change to user selected content
A system for notification of a change to content of a document may include a processor and a module operable on the processor for allowing a user to dynamically select a variable amount of content of the document for which a notification of a change to the selected variable amount of content is desired. The system may also include a module operable on the processor for detecting a change to the selected variable amount of content being made by another user. The system may additionally include a module operable on the processor for creating the notification of the change to the selected variable amount of content. The system may further include a module operable on the processor for transmitting the notification of the change to the selected variable amount of content in response to the change to the selected variable amount of content of the document being saved by the other user.
System and method for constructing content site visitor profiles
Embodiments of the systems described herein can implement one or more visitor stitching processes. Visitor stitching can include, among other things, one or more processes by which multiple visitors that may appear distinctly independent may be merged into a new single united visitor profile due to the leveraging of one or more unique persistent identifiers.
Dynamic social networking content
A method, computer program product, and system for performing a dynamic social content selection. According to an embodiment, a method may include determining, via one or more computing devices, a plurality of status indicators available to be associated with social content associated with a first user. The method may also include defining one or more rules for the plurality of status indicators based on, at least in part, a recipient characteristic. The method may further include selecting one of the plurality of status indicators to associate with the content for a second user based on the one or more rules. The method may further include providing the content and the selected one of the plurality of status indicators to the second user.
Dynamic social networking content
A method, computer program product, and system for performing a dynamic social content selection. According to an embodiment, a method may include determining, via one or more computing devices, a plurality of status indicators available to be associated with social content associated with a first user. The method may also include defining one or more rules for the plurality of status indicators based on, at least in part, a recipient characteristic. The method may further include selecting one of the plurality of status indicators to associate with the content for a second user based on the one or more rules. The method may further include providing the content and the selected one of the plurality of status indicators to the second user.
Method and system for creating and dynamically deploying resource specific discovery agents for determining the state of a cloud computing environment
Virtual resource specific discovery agents are instantiated in a first computing environment including internal resource specific data collection logic for directing and allowing the virtual resource specific discovery agents to collect data from a specific resource, or resource type, assigned to the virtual resource specific discovery agents. The virtual resource specific discovery agents then collect data from the specific resource, or resource type, assigned to the virtual resource specific discovery agents and provide the data collected from the specific resource, or resource types to a computing environment modeling system. The computing environment modeling system then transforms the data into description data for the computing environment indicating a state of the first computing environment at a given time.
Network nodes that establish sessions using existing connections identified in a central database
Network nodes can add information to a central database (220, 300) that identifies their connections to other network nodes. The central database (220, 300) can thereby serve as a repository of information indicating connections between network nodes. When a first network node (Node 0) needs to establish a session to a second network node (Node 1), it can interrogate the central database (220, 300) to learn what existing connections, if any, can be used for the session. When existing connections provide more than one available pathway between the first and second network nodes (Node 0, Node 1), the first network node (Node 0) may select among the existing connections in response to quality of service values that are provided by the central database (220, 300) for those connections.
Isolating clients of distributed storage systems
A distributed storage system that includes memory hosts. Each memory host includes non-transitory memory and a network interface controller in communication with the memory and servicing remote direct memory access requests from clients. The memory receives a data transfer rate from each client in communication with the memory host through remote direct memory access. Each memory host also includes a data processor in communication with the memory and the network interface controller. The data processor executes a host process that reads each received client data transfer rate, determines a throttle data transfer rate for each client, and writes each throttle data transfer rate to non-transitory memory accessible by the clients through remote direct memory access.
Dynamic assignment of transfers of blocks of data
A computer-program causing a computing device to transmit a command to a data storage cluster for multiple data transfer threads thereof to request assignment of a data transfer from a distribution thread; await receipt of a request for assignment from a data transfer thread; compare the quantity data transfer threads to the quantity of computation threads of a data processing cluster; assign to the data transfer thread an exchange of a block of data with a single computation thread in response to receipt of the request and to the multitude of data transfer threads comprising a greater quantity of threads than the multitude of computation threads; and assign to the data transfer thread exchanges of multiple blocks of data with multiple computation threads in response to receipt of the request and to the multitude of data transfer threads comprising a lesser quantity of threads than the multitude of computation threads.
System and method for providing individualized portable asset applications
In one aspect, a computer-implemented method for providing individualized portable asset applications may generally include providing access to a master geospatial asset and receiving a user input associated with generating a portable geospatial asset based on the master geospatial asset, wherein the portable geospatial asset corresponds to a data subset of the master geospatial asset. The method may also include generating the portable geospatial asset based on the user input and embedding the portable geospatial asset within an asset application, wherein the asset application includes computer-readable instructions for rendering the portable geospatial asset. In addition, the method may include transmitting the asset application containing the portable geospatial asset to a separate computing device.
Assignment of applications in a virtual machine environment based on data access pattern
Techniques for assigning applications to datastores in a virtual machine environment are disclosed. In an embodiment, applications exhibiting different I/O data access patterns are assigned to datastores by collecting data related to the input-output operations performed by the applications, analyzing the collected data to identify corresponding data access patterns, and assigning applications to datastores based on the identified data access patterns. In this way, applications can be segregated by data access pattern onto separate datastores. For example, random I/O apps and sequential I/O apps can be assigned to different datastores. Additionally, if random I/O apps are found to be comingled with sequential I/O apps on the same datastore, then data associated with the applications can be migrated as necessary to achieve segregation. In an embodiment, random I/O apps and sequential I/O apps are segregated onto datastores that rotate independent of each other.
Apparatuses and methods for plug-in management
A plug-in management apparatus for managing plug-ins installed in application programs may comprise a local plug-in management module disposed in a client device. The local plug-in management module may be configured to detect a plug-in installed in an application program; determine an activation status of the plug-in; and when the plug-in is active, turn off the plug-in when the plug-in has been in an idle condition for a time longer than a predetermined idle time. The local plug-in management module may also be configured to delete a plug-in when an activation frequency of the plug-in is lower than a predetermined frequency; clean a plurality of caches used by the plug-in when a quantity of the plurality of caches is greater than a pre-determined cache quantity or when the plug-in has been activated for a time longer than a predetermined activation time.
Service request apparatus, service request method, and recording medium
A service request apparatus includes a storage unit and a processor coupled to the storage unit, wherein the processor executes a process including: storing in the storage unit source session information and destination session information in association with a user identifier, the source session information indicating information on a session used by a service source that is requested by the user for provision of a service, and the destination session information indicating information on a session used by a service destination; determining whether the user identifier of the user who requests the service source for provision of the service is stored in the storage unit; and requesting, when the user identifier is stored, the service source for provision of the service in cooperation with the service destination connected using the destination session information associated with the source session information, the service source being connected using the source session information.
Communication apparatus, communication system, communication method, and program
A communication apparatus includes: a buffer that accumulates a plurality of data blocks; a buffer controller that reads the data blocks from the buffer to transmit the data blocks; and a transmission unit that transmits, when any of the data blocks is discarded from the buffer during the transmission of the data blocks, dummy data in place of an untransmitted portion of the data block having been discarded.
Sharing a configuration state of a client device that meets a threshold level of QoE
Arrangements described herein can include automatically monitoring, on a first client device receiving multimedia content, a first QoE associated with presenting the multimedia content by the first client device. The arrangements also can include automatically determining a configuration state of the first client device while presenting the multimedia content. The method further includes sharing, by the first client device, with at least a second client device at least a portion of the configuration state of the first client device while presenting the multimedia content, wherein the portion of the configuration state of the first client device is included in a candidate configuration that is a candidate for implementation on the second client device to improve a second QoE associated with presenting the multimedia content, or other multimedia content, by the second client device.
Systems and methods for estimating available bandwidth and performing initial stream selection when streaming content
Systems and methods for determining available bandwidth and performing initial stream selection when commencing adaptive bitrate streaming using Hypertext Transfer Protocol (HTTP) in accordance with embodiments of the invention are disclosed. One embodiment of the invention includes measuring network bandwidth using a playback device, determining an initial network bandwidth estimate using the network bandwidth measurements, selecting an initial stream from said plurality of streams of encoded media that are encoded at different maximum bitrates rates using the playback device based upon the maximum bitrates of the plurality of streams and the initial bandwidth estimate; and commencing streaming of encoded media by requesting portions of the encoded media from the initial streams using the playback device.
Method and apparatus for delivering encoded content
A method and system for delivering encoded content are provided. A holdback representing a portion of the encoded content is extracted, thereby damaging the encoded content. The damaged encoded content is distributed. The holdback is transmitted to enable reintegration of the holdback with the damaged encoded content to restore the encoded content.
Systems and methods for detecting associated devices
Systems and methods are disclosed for detecting associated devices. In accordance with one implementation, a method is provided for detecting associated devices. The method includes obtaining information about a target device and determining, based on the information about the target device, one or more target observations that include a target time and a target location. The method also includes identifying one or more second observations of one or more candidate devices, wherein the candidate observations include a second time and a second location that correspond with the target time and the target location. In addition, the method includes determining, from the one or more candidate devices, any associated devices that may correspond with the target device.
Inter-domain replication of service information
An automated conversion of service information that includes endpoint addresses of service providers and security policies between independent enterprise information technology (IT) management domains is performed using a federated gateway within each of the independent enterprise IT management domains that bridges the independent enterprise IT management domains. The automated conversion of the service information allows at least one service consumer application executing within a first independent enterprise IT management domain to use a local service definition format to access at least one remote service provider application with a remote service interface defined using a different remote service definition format for execution in a second independent enterprise IT management domain. Service provider application endpoint translation is dynamically performed, in response to at least one service request for the at least one remote service provider application, using the federated gateway within each of the independent enterprise IT management domains that bridges the independent enterprise IT management domains.
Gateway-based audit log and method for prevention of data leakage
A system and method for prevention of data leakage, the system comprising: a server configured to receive and transmit user activity commands; a protection module configured to validate and reconstruct commands received from the server and to transmit the validated reconstructed commands, the protection module further configured to create a security image associated with a specific user; and a secured transmission module configured to transmit the security image to the server while ensuring that the security image is sent securely to the associated user, wherein the server is further configured to receive the security image via the secured transmission module and to present the security image to the associated user.
Method and system for network validation of information
Embodiments of the present application relate to a method for network validation of information, a system for network validation of information, and a computer program product for network validation of information. A method for network validation of information is provided. The method includes receiving verification information from a user, the verification information including a plurality of verification fields, determining a verification sequence of the plurality of verification fields based on a verification rule configuration and a verification scoring table, verifying a current verification field according to the verification sequence, verifying a next verification field in the event that the verification of the current verification field succeeds, and terminating verification in the event that the verification of the current verification field fails.
Determination of spoofing of a unique machine identifier
In one embodiment, an edge network device may monitor a network service that is provided at a network service device. Information related to the monitored network service may be temporarily stored at the edge network device and transmitted to a remote network device. In one embodiment, an administrative device may compare current extracted information with stored historical information to determine if a unique machine identifier of an end user device has been spoofed.
Integrated network threat analysis
The inventive systems and methods aggregate network information to accompany file information in an indicator and warning environment. This system also provides a user interface to search for files using network attributes or file attributes, such as message digest. The system can include threat scoring functionality that can be configured to calculate a threat score based on a combination of the result of file analysis on one or more files and associated network data capture information.
Managing restricted access resources
Entities such as resource and service providers can utilize a ticketing system to define operational actions as primitives that can be stored, combined into more complex workflows, and executed in a restricted zone wherein a portion of the resources or services are not directly accessible to those providers. These primitives can be stored in the provider environment and shared with the restricted zone, in order to provide a structured approach to the sharing of operational knowledge. When a primitive is first received to the restricted zone, a person vetted by the customer associated with the restricted zone can review and approve the primitive, and can cause the primitive to be executed in the restricted zone. When that same primitive is subsequently received to the restricted zone, a lookup can be performed to determine that an approval exists, whereby the primitive can be executed in the restricted zone without another review.
Apparatus and method for access validation
One or more techniques for access validation are provided. Access validation may be performed automatically or in real-time. Access validation may be at the resource level or at a sub-resource level. Techniques provided herein may be applied in a large variety of situations and industries, e.g. compliance management or inventory. Access validation reports may be generated in real-time or may link to indications of access validation in real-time. Five outcomes or options are provided, including affirmative, negative, stronger negative with larger implication, undetermined, and negative, however with temporarily granted access. A field for allowing entry of justification for access to a particular resource is provided. Reminders to validate privileges are provided. A continuous access validation process is provided. A technique for extending the hierarchy and corresponding workflow that is generated thereof is provided.
Communication apparatus, relay apparatus, wireless communication system, control method of communication apparatus, control method of relay apparatus, and storage medium
A communication apparatus, which is connected to a relay apparatus, and transmits data to a server apparatus connected via the relay apparatus, includes a determination unit which determines whether the communication apparatus or the relay apparatus holds authentication information used in authentication processing required to access the server apparatus, a decision unit which decides, according to the determination result, a transmission method required to transmit the data by controlling an authentication processing unit of the apparatus that holds the authentication information to execute the authentication processing, and a transmission unit which transmits the data by the decided transmission method.
System and method for determining liveness
Systems and methods are provided for recording a user's biometric features and generating an identifier representative of the user's biometric features and whether the user is alive (“liveness”) using mobile devices such as a smartphone. The systems and methods described herein enable a series of operations whereby a user using a mobile device can capture imagery of a user's face, eyes and periocular region. The mobile device is also configured analyze the imagery to identify and determine the position of low-level features spatially within the images and the changes in position of the low level features dynamically throughout the images. Using the spatial and dynamic information the mobile device is further configured to determine whether the user is alive and/or generate a biometric identifier characterizing the user's biometric features which can be used to authenticate the user by determining liveness and/or verify the user's identity.
Secure BIOS access and password rotation
A device may periodically update a BIOS password on a client device. In some implementations, the device may determine a particular password generation algorithm; determine password generation seed values; and generate a first password and one or more second passwords based on the particular password generation algorithm and the password generation seed values. The first password may be a password that should be set for the BIOS. The one or more second passwords may be possible current passwords currently set. The device may individually output the one or more second passwords to the client device to cause the client device to update a password of the BIOS to update to the first password; receive an indication that the BIOS password has been updated to the first password; and output the indication that the BIOS password has been updated to the first password.
Multi-factor authentication using an authentication device
Systems and methods of authenticating users using a possession factor communicate a first authentication code to the user device and a second authentication code to an authentication device that is assumed to be the user's possession. Both authentication codes are presented to the user via their respective devices. An authentication application on the authentication device asks the user to compare the authentication codes and respond, via the authentication device, if these two authentication codes match. Authentication codes may be identical or different and match based on a user association. If a message from the authentication device indicates that the two codes match, then it is confirmed that the user possesses the authentication device and has authorized the authentication to proceed. For enhanced security, the authentication application may optionally be installed and executed on a Subscriber Identity Module (SIM) installed in the authentication device.
Verification of configuration using an encoded visual representation
Aspects of the present disclosure relate to a method, system, and computer program product for verifying a parameter on a computing node. The method can include accessing a first dynamically generated encoded visual representation from a computing node. The method can also include identifying one or more parameters of the computing node from the first dynamically generated encoded visual representation. The method can also include determining whether the computing node has a first parameter from the one or more parameters. The method can also include displaying the first parameter in response to the computing node having the first parameter.
Communications hub for use in life critical network
Secured communications between patient portable communicators (PPC) and a central authority (CA) via an unsecured network are implemented using software implemented by a communications device. The communications device provides for detecting, using a multiplicity of disparate communication protocols, presence of entities requesting a network connection and determining whether or not each of the entities is a PPC, establishing, only for the entities determined to be PPCs, a connection to the CA via the unsecured network using the disparate communication protocols, authenticating only the PPCs to the CA, and facilitating communication of PPC data between the PPCs and the CA via the communications device and the unsecured network upon successful PPC authentication. The PPC data comprises at least some patient implantable medical device data acquired by the PPCs.
Providing domain-joined remote applications in a cloud environment
Embodiments are directed to provisioning private virtual machines in a public cloud and to managing private virtual machines hosted on a public cloud. In one scenario, a computer system receives authentication information for a private domain from an entity. The entity indicates that their private virtual machines are to be provisioned on a public cloud, where the entity's private domain is accessible using the authentication information. The computer system establishes a virtual network on the public cloud which is configured to host the entity's private virtual machines, where each virtual machine hosts remote applications. The computer system establishes an authenticated connection from the virtual network to the entity's private domain using the received authentication information and provides the entity's private virtual machines on the public cloud. The remote applications provided by the private virtual machines then have access to data stored within the entity's private domain using the authenticated connection.
Systems and methods for authenticating devices
A computer-implemented method for authenticating devices may include (1) identifying a request from a device for a credentialing service to issue a credential to the device, the request including an application identifier encrypted with a first encryption key, the first encryption key having been derived by the device based on a token provisioned to the device by a vendor of the device, (2) transmitting the request to the credentialing service, (3) receiving, from the credentialing service, the credential encrypted using a second encryption key, the second encryption key having been derived by the device based on the token, and (4) providing the encrypted credential to the device. Various other methods, systems, and computer-readable media are also disclosed.
Communication apparatus, communication system, and computer program product
According to an embodiment, a communication apparatus includes a sharing processing unit, an extension unit, and a communication unit. The sharing processing unit shares a first cryptographic key with an external apparatus connected via a link, and further generates a second cryptographic key and shares the second cryptographic key with the external apparatus through secret communication using the first cryptographic key. The extension unit generates an extended key by extending a length of the second cryptographic key. The communication unit transmits the extended key to a first application which communicates with a second application to which the external apparatus provides the second cryptographic key.
System and method for establishing a secure wireless communication path
A communication system automatically provides a secure communication link between a device and a network. A switch initiates a wireless link between the switch and the network. Then, a secure communication path is created between the switch and the network. When a device is linked to the switch, the device is automatically granted access to the secure communication path created by the switch.
Providing content to devices in a cluster
Methods, systems, and apparatus, include computer programs encoded on a computer-readable storage medium, and include a method for providing content. The method includes receiving a request for content from a requesting device that includes an associated IP address and determining that the received request is appropriate for clustering based on the IP address. The method further includes determining whether the received request is already associated with a cluster including, and when not, returning a cluster cookie to the requesting device and storing cluster information including the IP address associated with the requesting device; otherwise creating a cluster including returning a cluster cookie to the requesting device and storing in a data set associated with the cluster information including the IP address associated with the requesting device. The method further includes providing a response to the received request based on the data set for an associated cluster.
Providing contextual relevance of an unposted message to an activity stream after a period of time elapses
A method, system and computer program product for providing contextual relevance of an unposted message to an activity stream after a period of time elapses. A comparison is made between the current state of the activity stream at a second point in time with respect to the state of the activity stream at a first point in time, which includes an unposted message. The relevance of the unposted message with respect to a current topic of interest in the activity stream at the second point in time is quantified. If the contextual relevance of the unposted message with respect to the current topic of interest in the activity stream at the second point in time is less than a threshold, then the user is presented with an indication of the contextual relevance of the unposted message to the activity stream.
Booking method and system
The invention relates to a method and system for booking reservations in a booking system and synchronizing bookings among several booking systems. The system comprises at least one booking system; at least one service provider; a mediator service; a client, and at least one client terminal device that can be a mobile device and that includes a dialog. The client uses the dialog to enter information into the system and the mediator receives inquiries and answers from the at least one booking system, the at least one service provider, and the at least one client. The mediator transfers and adapts information between them. The method and system are particularly suited for use with mobile phone users by Small Message Service messages.
Routing messages exclusively to eligible consumers in a dynamic routing network
Embodiments relate to routing a message only along routes in a messaging network that lead to a currently active consumer for the message. The messaging network adapts to changes in the message preferences of the message consumer, and the message consumer's availability throughout the messaging network. In various embodiments, changes to message routing criteria at a destination broker in the network are propagated to all other brokers in the network until the entire network is adapted, and the network routes messages based on the adaptations, which reflect the current connectivity and message accepting criteria of each message consumer.
Method and system for suggesting messages and accounts from a real-time messaging platform
A real-time messaging platform and method are disclosed which suggests messages and accounts from the real-time messaging platform.
Generating intentional interruptions during gatherings
Systems and methods for generating interruptions are provided. A method for generating interruptions, comprises generating a message for one or more recipients, detecting that a computing device is being used for a presentation, concluding, using a processor, that the one or more recipients are in an audience for the presentation, and after concluding that the one or more recipients are in the audience, interrupting the presentation with the message.
Network resource management for parallel computing
An illustrative example computing system includes a parallel computing controller configured to communicate control information with a plurality of computing nodes over a virtual private network. A cloud computing controller is configured to receive a communication from the parallel computing controller. Based at least in part on the received communication, the cloud computing controller allocates cloud computing resources to facilitate data traffic communication involving at least one of the plurality of computing nodes.
Packet preemption for low latency
While transmitting a first Ethernet frame from the first buffer onto an Ethernet link, a first Ethernet device may stop transmitting the first frame prior to completing transmission of the frame. The first Ethernet device may then transmit a second frame from a second buffer onto the Ethernet link. The first Ethernet device may resume transmission of the first frame from the first buffer onto the Ethernet link. A second Ethernet device may receive, via the Ethernet link, a first portion of a first Ethernet frame and store the first portion of the first Ethernet frame in a first buffer. The second Ethernet device may then receive, via the Ethernet link, a second Ethernet frame and store the second Ethernet frame in a second buffer. The second Ethernet device may then receive, via the Ethernet link, a second portion of the first Ethernet frame and append it to the contents of the first buffer.
Physical port sharing in a link aggregation group
Virtual switches are established in a host system of a computing environment. Each virtual switch of the virtual switches includes a respective virtual switch port grouped within a shared port group of virtual switch ports. The virtual switch ports of the shared port group are in communication with a common physical network adapter of the host system. The virtual switch ports of the shared port group share a single physical port of the physical network adapter as part of a common physical link aggregation group (LAG).
Method and arrangement for the power management of a digital communication line
The present invention relates to a method and an arrangement for the power management of a digital communication line such as a digital subscriber line DSL (2201). A problem addressed by the invention is that the transitioning of the digital subscriber line (2201) from a low transmission power state to a high transmission power state can cause disturbance to adjacent lines. This problem is solved by the current invention by an access node AN (2100) that is arranged to step-wise increase the power state until the high transmission power state has been reached. The invention also comprises embodiments of monitoring and detecting traffic events that serve as triggers of the transitioning.
Managing data retransmission to a wireless device
First data packets for a wireless device are received at a network element and are encoded into at least one second data packet, the second data packet comprising at least two of the first data packets. The at least one second data packet is sent from the network element to the wireless device. A round trip time related to the at least one second data packet, and a frequency band load of a frequency band to deliver the at least one second data packet to the wireless device are determined. A number of permitted retransmissions of the at least one second data packet from the access node to the wireless device is adjusted based on the round trip time and the frequency band load.
Leveraging hardware accelerators for scalable distributed stream processing in a network environment
An example method for leveraging hardware accelerators for scalable distributed stream processing in a network environment is provided and includes allocating a plurality of hardware accelerators to a corresponding plurality of bolts of a distributed stream in a network, facilitating a handshake between the hardware accelerators and the corresponding bolts to allow the hardware accelerators to execute respective processing logic according to the corresponding bolts, and performing elastic allocation of hardware accelerators and load balancing of stream processing in the network. The distributed stream comprises a topology of at least one spout and the plurality of bolts. In specific embodiments, the allocating includes receiving capability information from the bolts and the hardware accelerators, and mapping the hardware accelerators to the bolts based on the capability information. In some embodiments, facilitating the handshake includes executing a shadow process to interface between the hardware accelerator and the distributed stream.
System and method for subscriber aware network monitoring
A system and method for subscriber aware network monitoring is provided. The method includes: determining subscriber and session data, wherein the subscriber has a non-unique IP (Internet Protocol) address; retrieving identifying data from a packet; and comparing the identifying data with the determined subscriber and session data to determine the subscriber associated with the packet. The system includes: at least one network probe configured to determine subscriber and session data, wherein the subscriber has a non-unique Internet Protocol (IP) address; at least one traffic probe configured to retrieve identifying data from a packet; and a processing module configured to compare the identifying data with the stored subscriber and session data to determine the subscriber associated with the packet.
Network routing based on resource availability
A system for network routing based on resource availability. A network switching element (NSE) may be configured to provide status information to a controller. The controller may be configured to utilize the status information in determining control information that may be provided to the NSE. The NSE may further be configured to assign processing of information flows to processors in the NSE based on the control information. For example, the control information may contain minimum and maximum percent utilization levels for the processors. Information flows may be reassigned to processors that have available processing capacity from processors whose operation is determined not to be in compliance with the minimum and maximum levels. Moreover, inactive processors may be deactivated and alerts may be sent to the controller when the NSE determines that no available processing capacity exists to reassign the flows of processors whose operation is determined to be noncompliant.
Method and apparatus for intercepting multicast protocol packet and switch
The present disclosure provides a method and an apparatus for intercepting a multicast protocol packet and a switch. The method for intercepting a multicast protocol packet includes: acquiring multicast work information of a router; acquiring a multicast protocol parameter of the switch according to the multicast work information of the router, where the multicast protocol parameter includes an interval of sending general query packets, a robustness variable, and a query response interval; acquiring port aging time of the switch according to the multicast protocol parameter of the switch; and aging a port if no multicast protocol packet is received on the port within the port aging time. The present disclosure further provides a corresponding apparatus and a switch including the apparatus.
Traffic generator with priority flow control
Traffic generators, methods, and computer readable storage media for testing a network are disclosed. A scheduler may determine a sequence of packets to be transmitted, each packet in the sequence of packets belonging to one of a plurality of flow control groups. A packet generator may generate packets in the determined sequence and output completed packets for transmission over a network under test. The packet generator may include a first processing engine and a last processing engine configured as a pipeline to perform respective sequential stages of a packet generation process, and a first bank of first-in-first-out (FIFO) queues including a plurality of FIFO queues corresponding to the plurality of flow control groups. The first processing engine may store first packet forming data associated with each flow control group in the corresponding FIFO queue of the first bank of FIFO queues.
Method of monitoring a tandem connection in a multi-protocol label switching (MPLS) telecommunication network
It is disclosed a method of monitoring, a Multi-Protocol Label Switching network, a tandem connection of a Label Switched Path. The tandem connection to be monitored has an input node and an output node. The method comprises the following steps: receiving a first Operation Administration Management packet at the input node; and generating a second OAM packet at the input node. According to the invention, the following steps are further performed: a tandem connection header is inserted into the first OAM packet; both the first OAM packet with the tandem connection header and the second OAM packet are sent towards the output node; and the second OAM packet is identified according to the presence or absence of said tandem connection header.
Managing processing branches in an operator graph
Embodiments of the disclosure provide a method and system for processing data such as a stream of tuples. One embodiment is directed toward a method for managing a stream of tuples. The method can include receiving the stream of tuples to be processed by a plurality of stream operators operating on one or more computer processors. The method can include routing the stream of tuples to a plurality of output ports, the output ports each communicate with a processing branch. The method can include receiving performance data of the stream of tuples from a measuring stream operator that measures the processing branch. The method can include determining weights to assign to each output port based on the performance data. The method can also include modifying the routing of the stream of tuples through the plurality of output ports as a function of the weight of each output port.
System and method for controlling neighbor cell monitoring activity based on conditions of serving cell in a mobile communication device
Embodiments are provided herein for reducing neighbor cell monitoring by a mobile communication device that may include measuring a channel condition of the cell serving the idle network subscription, determining whether the measured channel condition of the cell serving the idle network subscription satisfies a threshold value, and in response to determining that the measured channel condition of the cell serving the idle network subscription satisfies the threshold value, reducing a frequency at which neighbor cells associated with the idle network subscription are monitored and monitoring the neighbor cells associated with the idle network subscription according to the reduced frequency.
Flexible and scalable method and apparatus for dynamic subscriber services configuration and management
A method and apparatus is described for configuring a network element for providing services for subscribers by dynamically generating a set of one or more internal network attributes based on a set of relatively simple attributes passed from a server.
Network management using secure mesh command and control framework
Embodiments relate to systems and methods for network management using a secure mesh command and control framework. A network management server can communicate with a set of supervisory hosts, which in turn communicate with an underlying set of targets. The set of targets can have associated digital certificates which can be authenticated by common certificate authorities. A controlled target can authenticate one or more other target requesting access to the controlled target via the trusted common certificate authority. One authenticated target can therefore mesh on a trusted basis with another target to perform installation, monitoring, testing, or other activities directly on the target of interest, without channeling commands through an intervening supervisory host.
Method for extending business systems to a mobile workforce
Systems, software, and methods for reliable wireless communication are provided. In one aspect, a computer program control device, called a node, is configured to be transmitted from a first device for receipt and processing on a second, disparate device. The node comprises a collection of managed objects or managed object representations that is effective to control said disparate device. In one exemplary illustrative non-limiting implementation, the node is configured to control the processing of multiple data types.
Systems and methods for discovering devices in a neighborhood aware network
Methods, devices, and computer program products communicating discovery information in a wireless neighborhood aware network (NAN). One method includes receiving, at a first wireless device, a message from a neighboring wireless device. The message includes a data structure indicative of discovered device identifiers. The method further includes determining whether the data structure indicates an identifier of the first wireless device. The method further includes transmitting a message including the identifier of the first wireless device when the data structure does not indicate the identifier of the first wireless device.
Remote browsing session management
A browsing process is directed to the generation and management of a browse session at a network computing provider. A client computing device requests a remote browse session instance at a network computing provider. The browse session instance may correspond to requests for network content, and the requests may include information that can be used to identify the client computing device or its user. The network computing provider can remove identification information from the request before passing it to the content provider. The network computing provider retrieves the requested content and performs a first set of processing actions to generate a processing result. The processing actions can include removing identification information that was retrieved with the content. The processing result may be provided to the client computing device for display, including performing a second set of processing actions on the processing result at the client computing device.
Systems, devices and methods for provisioning, pairing and activating a newly manufactured device for automatic joining of customer's network
The invention provides systems and methods for providing a unified single-scan user interface for accessing and managing a remotely located device throughout its life cycle, including cellular network provisioning, cloud data provider registration, initialization and activation, as well as providing end users with easy access to the device and its data. The end user simply powers the device on and the device automatically connects with the communication network and the cloud data provider. The device comes to the end user already provisioned and paired and activated with the cloud data provider and the communication network provider. Further, the user account, or accounts, for the use of the device is both active and recorded for billing by the various service providers supporting the device use, i.e., the communication network provider(s).
Ethernet fault management systems and methods
Ethernet fault management systems and methods using programmable Type-Length-Value (TLV) offsets combine software-based Operations, Administration, and Maintenance (OAM) protocol support with hardware-based fault management support to delegate generation and processing of OAM protocol messages to hardware devices with the software-based protocol support used to program hardware based on fixed offsets in the OAM protocol messages. The hardware can be designed to be flexible since the hardware can be agnostic to the logic within the OAM protocol which would reside in the software. The Ethernet fault management systems and methods combine the flexibility of software-based approaches with the speed and efficiency of hardware-based approaches.
Analytics platform for automated diagnosis, remediation, and proactive supportability
Automatic remediation is provided to a serviced system. Selected system information associated with the serviced system is received. A set of one or more symptoms is generated using the selected system information. A knowledge repository is searched using the set of symptoms to identify a root cause. A remediation package corresponding to the root cause is obtained and, if permitted, the remediation package is caused to be performed on the serviced system.
Tunnel fault detection method and traffic engineering node
The embodiments of the present invention provide a tunnel fault detection method and a traffic engineering (TE) node. The method includes: receiving, by a traffic engineering TE node, a link fault report packet; determining, by the node, a faulty link in which a fault occurs according to the link fault report packet; detecting, by the node, whether one or more tunnels which use the node as an ingress node and pass through the faulty link exist; and identifying the tunnels as faulty tunnels if the one or more tunnels which use the node as the ingress node and pass through the faulty link exist. In the embodiments of the present invention, the TE node can detect all faulty tunnels at a time, and it is not necessary to wait until the fault notification based on each tunnel is received and then the faulty tunnel is identified one by one.
Network system and network managing method
A controller completes the setting of a flow entry to a switch previously before the communication of a virtual machine starts. Specifically, the controller sets information of the virtual machine and information of a server on which the virtual machine operates. The controller detects the information of the server under the switch through the switch. When the set server information and the detected server information match to each other, the controller sets a flow entry for a packet destined to the virtual machine to the switch based on information of the virtual machine on the server. After that, the virtual machine starts communication.
Distributed computing architecture
A system includes a plurality of servers and a border server. The border server receives a request for a transaction that can be accomplished by performing tasks, identifies a first task of the tasks, identifies an initial server of the servers to perform the first task by consulting, based on a type of the first task, routing data stored in memory of the border server, and requests that the initial server perform the first task. Each of the servers will, in response to receiving a task from the border server, perform the received task using related data stored exclusively on the server, determine whether the received task requires an additional task, identify a next server to perform the additional task by consulting routing data stored in memory of the server, and request that the next server perform the additional task.
Systems and methods for client-side media chunking
A computer implemented method of downloading one or more chunks of a selected media file from a server to a computing device is provided. A client application resides on the computing device and is configured to obtain a metadata file describing how the selected media file may be chunked, to determine, based on the metadata file, the portion of the selected media file to download, and to download the portion. The client application prepares a local media file corresponding to one or more chunks of the downloaded portion of the selected media file, and facilitates playback of the local media file on the computing device. The time interval of the chunk may be selected based on a suitable chunk time interval for the computing device.
System and method for data transfer between terminals in voice communication under voice over internet protocol (VOIP)
The present invention relates to a system and method for sharing and controlling various contents in a voice call. A contents sharing system includes a soft switch and a contents share server. The soft switch receives a voice call from a VoIP terminal to set establishment and cancellation on a voice call session, receives a contents sharing request call, and transmits the same to the contents share server. The contents share server in cooperation with the soft switch receives the contents request call and processes establishment and cancellation on a data session for contents sharing between the callers. Accordingly, improved calling is provided by sharing various contents between the callers in a voice calling and thereby overcoming the problem of communication only available for voice.
Pulse cancellation crest factor reduction with a low sampling rate
A method relates generally to data transmission. In such a method, a peak detector detects a signal peak of an input signal exceeding a threshold amplitude. This detecting includes sampling the input signal at a sampling frequency to provide a sampled signal. The sampling frequency is in a range greater than a bandwidth frequency of a carrier signal used for providing the input signal and less than twice the bandwidth frequency. Samples of the sampled signal proximate to the signal peak are interpolated to provide a reconstructed peak. A cancellation pulse is applied by a cancellation pulse generator to the samples to reduce the signal peak. A version of the input signal is output after application of the cancellation pulse.
Method and system for detecting FSS by peak threshold, and receiver
A method and system for detecting FSS by a peak threshold, and a receiver include: a peak search module configured to perform peak search on a set of inputted CIR average values to obtain a set of CIR peaks; a threshold generation module configured to search for a maximum value from the obtained set of CIR peaks, obtain an FSS search threshold according to the maximum value and a preset threshold, and provide the FSS search threshold to an FSS detection module; and the FSS detection module configured to utilize the FSS search threshold to detect an FFT windowing position of a receiving antenna. The technical solutions according to the disclosure improve the protection capability from exceptions for FSS detection while reducing the detection complexity of FSS.
Adaptive phase shift apparatus and method
The invention discloses an adaptive phase shift method in a multi-carrier system, comprising: generating a group of one or more new phase values for corresponding one or more phase shift carriers, PSCs, based on quantization phase values; calculating and comparing a backward maximum power in an evaluation path with the group of one or more new phase values in one timeslot and a forward maximum power in a working path with current phase values in the timeslot; and adjusting phase of the PSCs based on the group of one or more new phase values if the calculated backward maximum power is less than the calculated forward maximum power. An adaptive phase shift apparatus is also disclosed. With the invention, complexity of the implementation is reduced and a small DPS block resource, low Hardware cost, low power consumption is also achieved.
Burst noise detection and pilot selection
Techniques are presented herein for detecting burst noise in a received orthogonal frequency division multiplex (OFDM) transmission. An OFDM transmission is received that includes pilots transmitted at different instances of time but on the same subcarrier during a predetermined time interval such that there are a plurality of different pairs of pilots that are on the same subcarriers during the predetermined time interval. For each possible pair of pilots, an equalized pilot is generated using received values for first and second pilots of the pair. A signal-to-noise ratio is computed for each equalized pilot. A determination is made as to which pilots, if any, are affected by burst noise by comparing the signal-to-noise ratio among the plurality of equalized pilots. Pilots determined to be affected by burst noise are removed from a channel response computation.
Multi-bandwidth communication system using a shared baseband processor
Systems and methods are provided for transceiving information via alternate bandwidths using a shared baseband processor. The transmission method selects clock sampling frequencies, for example a first clock frequency (l×F1), or a second clock frequency (k×F1), where k>l. Digital information is processed using the selected clock sampling frequency and a baseband signal is generated. Regardless of the clock sampling frequency selected, the baseband signal may have the same number of subcarrier frequencies. The baseband signal is converted into a radio frequency (RF) signal having a data rate responsive to a selected clock frequency, and transmitted. More explicitly, a first baseband signal is generated having a first data rate in response to selecting the first clock frequency. A second baseband signal having a second data rate greater than the first data rate, may be generated in response to selecting the second clock frequency.
Application of sequence hopping and orthogonal covering codes to uplink reference signals
Methods and apparatuses are provided for transmitting and receiving references signals. A method includes receiving a first parameter, which is a cell specific parameter; receiving a second parameter, which is a UE specific parameter; acquiring a reference signal for a physical uplink shared channel (PUSCH), based on the second parameter; and transmitting the reference signal on the PUSCH. Group sequence hopping is not applied to acquire the reference signal, if the first parameter indicates that the group sequence hopping is enabled and the second parameter indicates that the group sequence hopping is disabled, and the group sequence hopping includes hopping among different groups.
Transmission of acknowledge/not acknowledge (ACK/NACK) bits and their embedding in the reference signal
Transmitting a acknowledge/not acknowledge (ACK/NACK) response in a wireless cellular network by mapping the data value into a cyclic shifted version of a reference signal. A subframe is formed with a plurality of symbols with certain symbols designated as reference signal (RS) symbols. The receiver and transmitter both know when an ACK/NACK response is expected. If an ACK/NACK response is not expected, then an RS is inserted in the duration of symbols designated as RS symbols. If an ACK/NACK response is expected, then the ACK/NACK response is embedded in one or more of the symbols designated as RS symbols. The subframe is transmitted to a receiver, and the receiver can determine the ACK/NACK value in the RS symbol, if present, and also use the RS symbol for coherent demodulation of a CQI (channel quality indicator) or data.
System and method for multi-threaded OFDM channel equalizer with coprocessor
A system for an orthogonal frequency division multiplexed (OFDM) equalizer, said system comprising a program memory, a program sequencer and a processing unit connected to each other, wherein the processing unit comprises an input selection unit, an arithmetic logic unit (ALU), a coprocessor and an output selection unit; further wherein the program sequencer schedules the processing of one or more symbol-carrier pairs input to said OFDM equalizer using multiple threads; retrieves, for each of the one or more symbol-carrier pairs, multiple program instructions from said program memory; generates multiple expanded instructions corresponding to said retrieved multiple program instructions; and further wherein said ALU performs said processing of the one or more symbol-carrier pairs using the multiple threads across multiple pipeline stages, wherein said processing comprises said ALU executing arithmetic operations to process said expanded instructions using said multiple threads across the multiple pipeline stages.
Compact and fast N-factorial single data rate clock and data recovery circuits
A plurality of line interfaces is configured to receive a spread signal over the plurality of line interface. The spread signal carrying symbols with guaranteed symbol-to-symbol state transitions between consecutive symbols. The spread signal is defined by a plurality of transition signals including a first signal over a first line interface. A clock signal is extracted based on a comparison between a first instance of the first signal and a delayed second instance of the first signal. The delayed second instance of the first signal is sampled based on the clock signal to provide a symbol output. The clock extraction circuit is further adapted to generate the clock signal based on additional comparisons between a first instance of a second signal, within the plurality of transition signals, and a delayed second instance of the second signal, where the first and second signals are concurrent signals received over different line interfaces.
Embodiments provide methods, devices, circuitry and systems for supporting or implementing functionality to provide a filtering circuit, and for providing a transmitter, receiver or transceiver system incorporating the same. One embodiment provides a circuit for filtering signals. The circuit comprises a first connection configured to be connected to a signal line carrying varying signal voltage and a second connection. The circuit also comprises a first circuit portion comprising a parallel resonant circuit having a variable capacitance connected in parallel with a first inductor; and a second circuit portion comprising a second inductor. The first circuit portion and the second circuit portion are connected in series between the first connection and the second connection.
Multiple mobility domains with VLAN translation in a multi-tenant network environment
An example method for facilitating multiple mobility domains with VLAN translation in a multi-tenant network environment is provided and includes detecting attachment of a first virtual machine on a first port and a second virtual machine on a second port of a network element, the first port and the second port being configured with a first mobility domain and a second mobility domain, respectively, and the first and second virtual machines being configured on a same original VLAN, determining whether the original VLAN falls within a pre-configured VLAN range, translating the original VLAN to a first VLAN on the first port corresponding to the first mobility domain and to a second VLAN on the second port corresponding to the second mobility domain, and segregating traffic on the original VLAN into the first VLAN and the second VLAN according to the respective mobility domains for per-port VLAN significance.
Verification of computer system prior to and subsequent to computer program installation
Embodiments of the present invention provide a method, system, and computer program product for validating a computer environment. In an embodiment of the invention, a signature file denoting the infrastructure requirements of a computing environment to support a computer program to be installed in the computer environment of multiple different computing devices disposed in multiple different network domains can be loaded. Administrative network privileges to access the multiple different network domains in the computing environment can be acquired. Further, at least one deficiency in the infrastructure requirements corresponding to one of the network domains can be identified and the identified deficiency can be remediated. The identified deficiency can be reported.
Method, apparatus and system for forwarding data under protocol independent multicast dual join
Embodiments of the present invention relates to the field of communications, which complements a data forwarding method of a backup incoming interface under protocol independent multicast dual join in a PIM protocol, facilitates implementation of compatibility in various manufacturers, and reduces a restriction of a network topology on the application of the PIM protocol. The method includes: when a main incoming interface is up, forwarding, by a router, multicast data received from a backup incoming interface to the main incoming interface in a join state; and when the main incoming interface is down, before selecting a new main incoming interface and/or backup incoming interface, forwarding, by the router, the multicast data received from the backup incoming interface to all interfaces in a join state or to all other interfaces in a join state except the backup incoming interface.
Method and system for power-fail protection of communication equipment, and power controller
The invention discloses a method and a system for power-fail protection of communication equipments, and a power controller. The method is applied to a system comprising a power controller, a power detection unit, and an energy storage conversion unit. The method includes: a power controller acquires the information of one or more circuit boards requiring protection in an equipment; when the power controller determines the equipment is currently in power-fail status, the power controller indicates to gate the switches between an energy storage conversion unit and one or more circuit boards, and provides the pre-stored electric energy to the one or more circuit boards. According to the technical solution provided by the present invention, the problems in the related art that the power consumption is large, the cost is high and it is difficult to implement when the power-fail protection is performed for all circuit boards of a frame are solved, so the power consumption is effectively reduced and the cost is saved.
Telephone caller authentication
Techniques for authenticating the identity of a caller in a telephone call are disclosed. The device generating the call implements encrypting caller identification information and initiating the telephone call, said initiating comprising providing a voice carrier signal including the caller identification information; and simultaneously providing a data carrier signal including the encrypted caller identification information. The receiving device implements receiving the telephone call; decrypting the encrypted caller identification information at the recipient device; and verifying the identity of at least an unknown caller at the recipient device by at least one of verifying the authenticity of a certificate used to encrypt the caller identification information; and comparing the decrypted caller identification information with the caller identification information from the voice carrier signal. A telephony device implementing such an authentication technique is also disclosed.
Method for fully homomorphic encryption using multivariate cryptography
Embodiments are described for a method of performing fully homomorphic encryption on a data set by providing a multivariate encryption polynomial to produce an encrypted data set and a multivariate decryption polynomial to decrypt the encrypted data set, providing a multivariate function polynomial that represents an operation to be performed on the encrypted data set, and recomposing the function polynomial with encryption polynomial. Also described are a method comprising providing a private key comprising a multivariate polynomial polynomial function to encrypt plaintext data to produce ciphertext, and providing a public key comprising a multivariate set of equations derived from the private key and a randomly selected injective vectorial multivariate function to decrypt the ciphertext.
Secret communication method with self-authentication capability
A secret communication method with a self-authentication capability is provided, which comprises steps of dividing a secret message into a plurality of secret segments; converting each of the secret segments into (k+1) shares, wherein k is a positive integer; embedding the shares into a media carrier; selecting every k shares among the (k+1) ones to compute (k+1) copies in value; and checking if the (k+1) copies in value are the same. If the (k+1) copies in value are the same, then the secret message is shown. Otherwise, at least one mark will be utilized to replace the secret message while the part of the secret message which is not falsified can still be correctly shown. By employing the method, the integrity and fidelity of the hidden secret message can thus be verified, thereby achieving a new covert communication process performing both information hiding and self-authentication capability.
Multi-channel timing recovery device
The present invention discloses a multi-channel timing recovery device capable of generating a common clock for processing a plurality of data channel signals, comprising: a first channel timing recovery circuit, and a second channel timing recovery circuit. The said first channel timing recovery circuit includes a first detecting circuit capable of detecting phase and/or frequency, an oscillation control circuit, an oscillator and a feedback circuit, and is operable to generate the common clock according to a first channel signal which could be a clock signal or a data signal. The said second channel timing recovery circuit includes a second phase detecting circuit, a second phase control circuit and a second clock output circuit, and is operable to generate a second clock according to the common clock and determine the phase of the second clock according to a second channel signal which is a data signal.
Circuit and method for clock recovery of quadrature amplitude modulated waveforms
Apparatus and method for performing low cost analog clock recovery within a high bandwidth radio frequency communications system. An analog data source is passed through a squaring loop typically utilized for carrier recovery. A squaring loop consists of an analog mixer to multiply one component of the complex signal with itself, a bandpass filter and phase lock loop. The addition of nonlinear gain compression enables clock recovery for higher order modulation schemes to exploit the fundamental phase differences of the individual components that construct the received signal. The output of the phase lock loop drives the Analog-to-Digital converter. It is desired that this signal converges to the symbol clock's frequency and phase of the transmitter, thereby sampling the received baseband signal at the desired symbol levels.
Baud-rate CDR circuit and method for low power applications
In an example, a clock data recovery (CDR) circuit for a receiver includes a timing error detector circuit, a loop filter, and a phase interpolator. The timing error detector circuit is coupled to receive, at a baud-rate, data samples and error samples for symbols received by the receiver. The timing error detector circuit is operable to generate both a timing error value and an estimated waveform value per symbol based on the data samples and the error samples. The loop filter is coupled to the timing error detector to receive timing error values. The phase interpolator is coupled to the loop filter to receive filtered timing error values, the phase interpolator operable to generate a control signal to adjust a sampling phase used to generate the data samples and the error samples.
Selecting between normal and virtual dual layer ACK/NACK
An allocation of downlink resources is received, which are monitored on l layers for data. A resource-specific bit (ACK/NACK) is generated for each of those resources. From a pattern of those resources is selected an algorithm from among a first algorithm that bundles them in a first mode and a second algorithm that bundles them in a second mode. The selected algorithm is used on the generated resource-specific bits that correspond to the downlink resources, bundled according to the selected mode, to generate l reply bits which are then transmitted. At the network side a NACK reply bit is received, based on a pattern of the allocated downlink resources, a first algorithm that bundles them in a first mode or a second algorithm that bundles them in a second mode is selected. A bundling window and layer combination are determined from the selected algorithm, which gives the resource for retransmitting the NACK'd data.
Wireless apparatus and training signal transmission method
The number of OFDM symbols for channel estimation is reduced, overhead due to a pilot signal and a feedback signal is reduced, and the throughput is improved. A wireless apparatus is provided with: an iterative coefficient setting unit which sets, for a plurality of transmission ports, an iterative coefficient representing the number of transmission ports which share a plurality of frequency channels of training signals for estimating the channel information; a training signal generating unit which allocates frequency channels to each transmission port so as to satisfy the set iterative coefficient and generates L training signals based on the allocated frequency channels; a channel information acquiring unit which acquires channel information estimated from the training signals from a communication partner for the frequency channels allocated to each transmission port; and a channel information interpolating unit which interpolates channel information of a remaining frequency channel other than the frequency channels allocated to each transmission port from the acquired channel information.
Method and system for dynamic allocation of resources in a cellular network
One example method is provided for dynamic allocation of air interface resources in a cellular network. The method can include at least three wireless cells located within a geographical proximity of each other. The method can include determining, by a central managing entity, one or more classification rules for classifying each of said plurality of mobile devices according to the one or more classification rules. The method can also include providing, by the central management entity, to a group of base stations associated with the at least three cells, information that can include, at least in part, information that relates to the determined one or more classification rules and information that relates to semi-static allocation of blocks of air interface resources for use by one or more specific members of the group of base stations.
Method for determining a channel estimate and communication device
A method for determining a channel estimate is described comprising receiving a first signal via a plurality of first communication resources and a second signal via a plurality of second communication resources, determining a first channel estimate for the plurality of first communication resources and a second channel estimate for the plurality of second communication resources, determining a combination of the channel estimates estimating a component of the combination that depends on the plurality of first communication resources removing the estimated component from the channel combination and determining a channel estimate for the plurality of second communication resources based on a remainder of the combination after removing the estimated component.
Method and apparatus for transmitting uplink reference signal in a multi-antenna wireless communication system
A method and apparatus for transmitting a Reference Signal (RS) during retransmission at a User Equipment (UE) in a multi-antenna wireless communication system are disclosed. The RS transmission method includes receiving an uplink grant from a Base Station (BS), initially transmitting data and an RS corresponding to each layer based on the uplink grant, receiving ACKnowledgment/Negative ACKnowledgment (ACK/NACK) information for the initially transmitted data, and retransmitting the RS corresponding to each layer and the data according to the ACK/NACK information. The retransmission includes initializing a cyclic shift value for the RS corresponding to each layer according to a cyclic shift field for RSs included in the uplink grant.
Method and apparatus for data security and automatic repeat request implementation in a wireless communication system
A method and apparatus for implementing data security and automatic repeat request (ARQ) in a wireless communication system are disclosed. Cipher entities are included in a wireless transmit/receive unit (WTRU) and an access gateway (aGW), and outer ARQ, (or radio link control (RLC)), entities are included in the WTRU and an evolved Node-B (eNode-B). Each cipher entity is located on top of an outer ARQ entity. The cipher entities cipher and decipher a data block by using a generic sequence number (SN) assigned to the data block. The outer ARQ entities may segment the ciphered data block to multiple packet data units (PDUs), may concatenate multiple ciphered data blocks to a PDU, or may generate one PDU from one data block. The outer ARQ entities may segment or re-segment the PDU when a transmission failure occurs.
Importance-based FEC-aware error-repair scheduling
A method is provided in one example and includes receiving a loss report usable to determine a plurality of missing packets at a first receiver; determining one or more retransmission packets for retransmission based on a forward error correction (FEC) scheme and the plurality of missing packets at the first receiver, where the one or more retransmission packets are determined to allow the first receiver to recover at least one of the missing source packets in the one or more source packets using the FEC scheme; and sending the one or more retransmission packets to the first receiver, the one or more retransmission packets allowing the first receiver to recover at least one of the missing source packets in the one or more source packets that it is missing using the forward error correction scheme after receiving the one or more retransmission packets.
Method of transmitting a digital signal for a marc system with a full-duplex relay, a corresponding program product and relay device
A method and apparatus for transmitting a signal for a network having at least four nodes comprising two transmitters, a relay, and a receiver that are connected together by non-orthogonal links implementing a spatially-distributed network code. The method includes each transmitter delivering a code word per block of K information bits and transmitting the code words during N time slots; iterative joint detection/decoding in the relay to separate respective streams and determine, per stream, a vector representative of the received code word; jointly coding two vectors derived from the two streams to determine redundancy information representative of two code words transmitted during N time slots; transmitting, by the relay, redundancy information during N time slots; and sequencing in the relay such that the redundancy information transmitted during the N time slots corresponds to the code words transmitted during the preceding N time slots.
Radio communication system, radio base station apparatus, user terminal and radio communication method
To reduce overhead of CSI feedback without decreasing throughput in applying CoMP transmission, a radio communication method of the invention is characterized in that a radio base station apparatus determines so that content of CSI to transmit to a serving cell to perform CoMP transmission as feedback is different from content of CSI to transmit to a coordinated cell as feedback, and notifies a user terminal of the content of CSI, and that the user terminal generates feedback information based on the content of CSI notified from the radio base station apparatus, and transmits the feedback information to radio base station apparatuses of cells that perform Coordinated Multi-Point transmission.
Pilot aided data transmission and reception with interference mitigation in wireless systems
Embodiments disclosed herein reduce interference at pilot symbols and also enable good interference measurements by using a combination pilot tones and null tones along with null tones. In this type of system, the receivers estimate the channel state information without any strong interference from the neighboring transmitters, and at the same time it can also measure either the individual interference channel states or the interference covariances from the silent periods. It uses these measurements thus obtained to calculate the post processing SINR, and then compute and report the wideband and subband CQIs to the transmitter. The groups of transmitters are reused in geographically separated region using a frequency reuse structure. In a preferred implementation, pilot signal is precoded using a multi-antenna precoder. The precoder may be same for pilot and data.
System and method to provide channel access synchronization without time-stamp exchange in time division multiple access (TDMA) multi-hop networks
The present invention relates to a system and method for providing channel access synchronization in a time division multiple access (TDMA) multi-hop network employing a plurality of time slots defined within a frame structure which repeats. The system and method includes nodes which have local clock variables. The local clock variables generate an expected arrival time of signals from other nodes in the network. Each node then determines whether the local clock variable needs adjusting after receiving a transmission and comparing the expected arrival time with the actual arrival time. Thus, time synchronization across the network is distributed and updated locally at each node. Networks may be merged by casting out nodes in one network and joining those cast out nodes with the other network. Newly joined nodes are thereafter time synchronized into their new network by comparing actual and expected arrival times and updating their clock accordingly.
TDMA-based self-adaptive channel switching
In some examples, a method of TDMA-based self-adaptive channel-switching is described. The method may include determining multiple switching thresholds, each corresponding to a respective one of multiple communication devices within a coverage area of a wireless access point (AP). Each of the switching thresholds may be based at least on a first received signal strength indication (RSSI). The first RSSI may indicate a received signal strength at the respective one of the communication devices substantially in the absence of interference. The method may also include determining that a current RSSI at a particular one of the communication devices is less than a corresponding one of the switching thresholds. The method may also include coordinating a transition by the wireless AP and the communication devices from a carrier sense multiple access CSMA mode to a hybrid CSMA-TDMA mode.
Method and system for initiating bi-directional communication in a time-division duplex communication system
The present invention relates to a method and a system for initiating bi-directional communication in a time-division duplex (TDD) communication system between a customer premises equipment (CPE) modem, such as a DSL modem, and an operator modem, such as a DSLAM. The invention is characterized in that the transmission of the CPE modem is aligned with the time-division duplex timing structure present in received crosstalk noise when transmitting initiation signals, so-called handshake tones.
Methods and systems for blending between analog and digital broadcast signals
Systems and methods are disclosed that may be implemented to process a received RF spectrum that includes both analog modulated and digitally modulated RF signals to blend between a digital demodulated signal and an analog demodulated signal obtained from the received RF spectrum prior to performing one or more signal quality mitigation operations on the blended signal (e.g., such as stereo blend, hi-cut, etc.). In one embodiment, the digital demodulated signal and the analog demodulated signal may include at least some of the same information, e.g., such as information from simulcast digital and analog channels that are obtained from the same received RF spectrum.
Remote server system for combining audio files and for managing combined audio files for downloading by local systems
A web-based method of combining time coded audio files, having the following steps: (a) a local operator using a web-based interface displayed on a local computer system to access a library of audio files stored on a remote system; (b) the local operator using the web-based interface to select a plurality of the audio files from the library; (c) the local operator using the web-based interface to request the remote system to combine the selected audio files into a single combined audio segment comprising the selected audio files commencing play at audio cue markers; (d) the remote system generating the single combined audio segment by combining the plurality of selected audio files; and (e) the local operator using the web-based interface to download or stream the single combined audio segment.
Computing system with power estimation mechanism and method of operation thereof
A computing system includes: an antenna configured to receive a receiver signal for representing a serving signal and an interference signal; a communication unit, coupled to the antenna, configured to: calculate a signal likelihood from the receiver signal based on a Gaussian approximation mechanism; calculate an interference power estimate based on the signal likelihood for characterizing the interference signal; and estimating the serving signal based on the interference power estimate.
Reconstruction and restoration of an optical signal field
A digital version of both amplitude and phase of a received optical is developed by employing direct differential detection in conjunction with digital signal processing. The signal is split into three copies. An intensity profile is conventionally obtained using one of the copies. Phase information is obtained by supplying each remaining copy to a respective one of a pair of optical delay interferometers that have orthogonal phase offsets, followed by respective balanced intensity detectors. The output of each of the balanced intensity detectors, and the intensity profile, are each converted to respective digital representations. Signal processing is used to develop the phase information from the digital representations of the output of the balanced intensity detector outputs.
Reducing power requirements for optical links
An optical system includes a device selected from a transmitter and a receiver. The transmitter has multiple laser cavities that each generates an optical channel at a different channel wavelength. The transmitter is also configured to modulate the optical channels into modulated light signals. The receiver is configured to demultiplex modulated light signals and use the demultiplexed light signals to generate electrical signals. The device is configured to operate in an atmosphere having an operational temperature range that includes a range of temperatures extending from TL to TH. Electronics are configured to elevate the temperature of the device when the temperature of the atmosphere is in a first portion of the temperature range from TL to TH but not elevate the temperature of the controlled device when the temperature of the atmosphere is in a second portion of the temperature range from TL to TH.
Transmission device, transmission method, and communication system
In order to provide a transmission device which can resolve the deterioration in transmission characteristics due to lack of the resolution of a D/A converter in a high speed and large capacity digital communication, a transmission device according to an exemplary aspect of the present invention includes an encoding unit encoding input data; an unequal-interval quantization unit quantizing an output signal from the encoding unit by a quantization level number based on a resolution of a subsequent digital-to-analog conversion unit by using an unequally spaced quantization level interval based on the output signal; the digital-to-analog conversion unit converting an output signal from the unequal-interval quantization unit into an analog signal; an output level adjustment unit adjusting an output level of the digital-to-analog conversion unit so as to compensate a difference between a predetermined initial transfer function and a transfer function of the unequal-interval quantization unit; and a modulation unit generating a transmission signal based on an output signal of the digital-to-analog conversion unit adjusted by the output level adjustment unit.
Pairing techniques for a wireless card reader
Methods, systems, and apparatus, for pairing a wireless card reader and a computing device, including: receiving first user input setting the wireless card reader in a pairing mode; sending an indication from the wireless card reader to the computing device that a pairing mode of the wireless card reader is enabled; receiving an indication from the computing device that a pairing mode of the computing device is enabled; receiving, in the wireless card reader, a second user input of a sequence of actuations of a sensor on the wireless card reader; determining, on the wireless card reader, whether the sequence of actuations matches a stored sequence; and in response to determining that the sequence of actuations matches a stored sequence, pairing the wireless card reader with the computing device.
Terrestrial based high speed data communications mesh network
A network for providing high speed data communications may include multiple terrestrial transmission stations that are located within overlapping communications range and a mobile receiver station. The terrestrial transmission stations provide a continuous and uninterrupted high speed data communications link with the mobile receiver station employing a wireless radio access network protocol.
Gateway functionality for mobile relay system
A method includes controlling one or more radio access connections at a mobile gateway for at least one station associated with a mobile relay system, the mobile relay system providing a plurality of access technologies and being served by one or more donor cellular systems. The method further includes controlling address information of communication on the one or more radio access connections between at least one station and one or more core network elements associated with the one or more donor cellular systems.
Communication device, communication control method and communication system
To enable high-speed learning of an antenna directionality to be used for millimeter-wave communication, there is provided a communication device including a first radio communication unit capable of radio communication in accordance with a first communication method, and a second radio communication unit capable of radio communication in accordance with a second communication method using a higher frequency band than the first communication method, in which, upon receiving an instruction signal instructing to learn a beam directionality, the first radio communication unit determines a reception start time point of a beam reference signal based on the instruction signal, and the second radio communication unit starts reception of the beam reference signal from the reception start time point determined by the first radio communication unit and determines a parameter value for specifying an optimum beam pattern based on the received beam reference signal.
Uplink training for MIMO implicit beamforming
In a method for beamforming in a multiple input multiple output (MIMO) communication system, a data unit is received from a communication device via a MIMO communication channel, and it is determined whether the data unit satisfies one or more selection criteria. Further, when it is determined that the data unit satisfies the one or more selection criteria, the data unit is selected to be used in developing a steering matrix for transmitting data units to the communication device.
Method and apparatus for transmitting codebook-based signal in wireless communication system
The present invention relates to a wireless communication system, and more specifically, disclosed are a method and an apparatus for transmitting a codebook-based signal. A method for transmitting channel state information from a terminal in the wireless communication system, according to one embodiment of the present invention, comprises the steps of: measuring a downlink channel from a downlink signal that is received from a base station; determining a first precoding matrix indicator (PMI) and a second PMI of the downlink channel based on the measurement of the downlink channel; and transmitting the first PMI and the second PMI to the base station, wherein the first PMI indicates a first precoding vector that includes a first elevation angle component of a multi-antenna of the base station, the second PMI indicates a second precoding vector that includes a second elevation angle component and an azimuth angle component of the multi-antenna of the base station, and wherein the second elevation angle component can be determined based on the value of the first elevation angle component.
Method for transmitting efficient feedback in multi-antenna wireless communication system and apparatus therefor
The present invention relates to a method for transmitting a signal of a transmitting side in a wireless communication system that supports multiple antennas. More particularly, the method comprises the steps of: receiving, from a receiving side, feedback information for transmitting the signal of the transmitting side; and transmitting a signal to which a precoding matrix (W) is applied on the basis of the feedback information, wherein the precoding matrix (W) is expressed as a multiplication of two precoding matrices (W1 and W2), W1 is set to correspond to a plurality of antenna groups configured according to the feedback information, and W2 is configured such that the signal corresponding to the plurality of antenna groups can be transmitted in a mutual orthogonal way.
Apparatus and method for dynamically altering a downlink MIMO configuration
A mobile wireless device may dynamically alter a downlink MIMO function by switching it on and off, or switching between different downlink MIMO configurations, such as 2×MIMO and 4×MIMO. Still further, a mobile device having greater than two antennas may dynamically select a subset of the antennas to be used to receive a MIMO transmission, and further, enable a mobile device to request a subset of antennas at a base station to be used for the MIMO transmission. This dynamic control of the MIMO mode or configuration may be achieved by using implicit signaling, by way of an enlarged code word set in CQI feedback transmissions, or by using explicit signaling, by way of E-DPCCH orders. In this way, a MIMO-capable mobile device may dynamically be configured for downlink MIMO transmissions as the conditions demand, enabling MIMO to be switched off when its use might otherwise cause performance to suffer.
Radio base station, radio terminal, and communication control method
In a case where, although a radio base station (eNB 1-1) has established an SRS transmission frequency band, a serving radio terminal (UE 2-1) has transmitted, to the radio base station (eNB 1-1), an SRS by use of only a frequency band that is a part of the SRS transmission frequency band, the radio base station (eNB 1-1) allocates a downstream resource block the frequency band of which is included in the SRS transmission frequency band and further the frequency band of which is identical with the frequency band of the SRS received at the latest; then establishes, for the downstream resource block, a transmission weight based on the SRS received at the latest; and then uses the downstream resource block to transmit a radio signal.
Wireless communication apparatus and wireless communication system
To realize a wireless communication apparatus with high transceiver coil mounting density, provided is a wireless communication apparatus comprising a plurality of differential coil pairs that respectively transmit and receive differential signals to and from a plurality of external differential coil pairs, through magnetic coupling, wherein one coil in a first differential coil pair among the differential coil pairs is provided at a distance from each of two coils of a second differential coil pair among the differential coil pairs that is less than or equal to a distance between the two coils of the second differential coil pair, and the other coil of the first differential coil pair is provided at a distance from each of the two coils of the second differential coil pair that is greater than the distance between the two coils of the second differential coil pair.
NFC system comprising a plurality of secure elements
It is provided a method implemented by an electronic device comprising a near field communication (NFC) system. The system comprises an NFC contactless front end, a plurality of secure element interfaces to which a plurality of secure elements are connected, and a processing unit adapted to control the NFC contactless front end and the plurality of secure elements through the secure element interfaces. The method comprises sending (S10) an initialization command to all the secure elements through the secure element interfaces, upon exposure of the NFC contactless front end to an NFC reader. The method improves the field of near field communication.
Transmission device with impairment compensation and methods for use therewith
Aspects of the subject disclosure may include, for example, a waveguide system that includes a transmission device having a coupler positioned with respect to a transmission medium to facilitate transmission or reception of electromagnetic waves that transport communications data. The electromagnetic waves propagate along an outer surface of the transmission medium. A training controller detects an impairment on the transmission medium adverse to the transmission or reception of the electromagnetic waves and adjusts the electromagnetic waves to reduce the effects of the impairment on the transmission medium. Other embodiments are disclosed.
Phase selection for power line communication (PLC) links
In one embodiment, a device receives connected phase data from a neighboring device indicative of one or more electrical phases to which the neighboring device is connected. A determination is made, based on the connected phase data for the neighboring device, whether to transmit the message to the neighboring device over a single electrical phase at a higher output power or over a plurality of electrical phases at a lower output power. The message is then transmitted to the neighboring device over the determined one or more electrical phases.
Crosstalk reduction in optical networks using variable subcarrier power levels
A method and system for reducing crosstalk among subcarriers of a super-channel may involve adjusting power levels of the subcarriers. In one example, power levels of edge and/or intermediate subcarriers may be reduced relative to center subcarriers in the super-channel band. The adjustment in power level may lead to overall reduction in optical signal-to-noise ratio degradation.
Echo cancellation apparatus, echo cancellation method and communications apparatus
An echo cancellation apparatus cancels an echo signal included in a second speech signal including the echo signal of a first speech signal, and includes: a first echo replica generating unit generating a first echo replica by processing the first speech signal through a filter whose characteristic is equalized with a acoustic transfer function of amplified sound; a first echo cancelling unit generating and providing a first echo-cancelled signal by subtracting from the second speech signal the first echo replica generated by the first echo replica generating unit; and a filter updating unit generating a nonlinear-converted echo-cancelled signal by performing nonlinear conversion on the first echo-cancelled signal generated by the first echo cancelling unit, and updating the filter characteristic thereby equalizing the filter characteristic with the acoustic transfer function, using the nonlinear-converted echo-cancelled signal, the first speech signal, and a norm of the first speech signal.
Signal transmitting and receiving circuit of digital subscriber line
This invention discloses a signal transmitting and receiving circuit of a digital subscriber line used for transmitting an output signal to a telecommunication loop or receiving an input signal from the telecommunication loop. The signal transmitting and receiving circuit comprises a transformer, which is coupled to the telecommunication loop; a signal transmitting module, which is coupled to the transformer, for generating the output signal; a signal receiving module, which is coupled to the transformer, for processing the input signal; an echo cancelling circuit, comprising passive components and having two ends, one of which is coupled to the signal transmitting module and the transformer, the other is coupled to the signal receiving module and the transformer. The output signal is transmitted to the telecommunication loop via the electromagnetic coupling of the transformer, and the input signal is received by the signal receiving module by the electromagnetic coupling of the transformer.
A RF (Radio Frequency) switch may include: a common port; a first switching unit including a plurality of first switching devices; a second switching; a negative voltage generating unit sensing the high frequency signal from the common port and rectifying the sensed high frequency signal to generate a negative voltage; and a logic circuit unit controlling switching operations of the first and second switching units using the negative voltage provided from the negative voltage generating unit and a positive voltage provided from the outside.
Apparatus and method for setting up an interface in mobile terminal
There are provided an interface setup apparatus and method capable of easily setting up an interface in a mobile terminal. A controller transmits, to a server, identification information extracted from a Subscriber Identification Module (SIM) card inserted into the mobile terminal upon power-on of the mobile terminal, in response, downloads a binary received from the server and corresponding to the identification information, and sets up the interface of the mobile terminal based on the binary.
DC offset filter for wide band beamforming receivers
A DC offset filter for wide band beamforming receivers is disclosed. In an exemplary embodiment, an apparatus includes a first mixer configured to down-convert an RF wideband beamformed signal to generate a first baseband wideband beamformed signal, the RF wideband beamformed signal having a beam pattern selected from a plurality of beam patterns, and a notch filter configured to remove DC offset from the first baseband wideband beamformed signal independent of the beam pattern.
Radio transmitting device and radio transmitting method
The amount of distortion of the output signal increases due to a difference in delay times in a plurality of paths in a radio transmitting device transmitting RF signals in a plurality of bands, therefore, a radio transmitting device according to an exemplary aspect of the present invention includes: a multi-band RF signal generator making each of a plurality of input baseband signals carried by a carrier wave with each of different frequencies, and outputting the carrier wave as a radio frequency signal; a power amplifier amplifying and outputting the radio frequency signal; a distortion compensation control signal generating unit applying a distortion compensating function, which compensates a distortion characteristic of the power amplifier, to the each of the plurality of input baseband signals; and a transmitter delay correction unit correcting a difference in delays which the plurality of input baseband signals receive respectively in the multi-band RF signal generator.
Matrix for use with a radio transceiver and methods thereto
A matrix for use with a radio transceiver having at least two signal sources is provided. The matrix comprises for each selected set of two or more signal sources, a list of combinations of harmonics of the signal sources, the combinations of harmonics each having a predicted amplitude greater than a predetermined threshold, and a frequency within a defined range related to a frequency range of one of the signal sources. Further, methods for generating such matrix and methods for avoiding spurs are provided.
Hardware abstraction layer (HAL) configuration for software defined radio (SDR) platforms
A method of producing a hardware abstraction layer (HAL) for software defined radio (SDR) platforms. A HAL software device in a processor of a given SDR platform operates to process data and exchange messages among a waveform software application and a waveform FPGA. A core module in the software device contains a set of software that is common to a number of different SDR platforms including the given platform, to enable the platforms to use HAL interfaces and services needed by the platforms. A custom module in the device contains software that is specific only to the FPGA of the given platform, while the core module provides the platform with the common software to enable the platform to use the HAL interfaces and services. By providing the separate custom and core modules, the overall cost of developing HALs for software radios having different hardware platforms is significantly reduced.
Method and device for storing and decoding hybrid automatic repeat request transmission block
A method and a device for storing and decoding a hybrid automatic repeat request (HARQ) transmission block are provided. The method includes obtaining an HARQ transmission block including at least one block during a downlink signal transmission, and storing the code block that cannot be correctly decoded to a divided storage space of a buffer. The storage space of the buffer is dynamically divided in a unit of code blocks.
Method and apparatus for spectrum spreading of a pulse-density modulated waveform
A spreading method and apparatus for spreading the spectral density of a pulse stream by summing a set of randomly selected zero-sum sequences to an incoming pulse stream and ensuring that the number of pulses output by the spreading method and apparatus is equal to the number of pulses input to the spreading method and apparatus.
Superconductor analog to digital converter
Superconductor analog-to-digital converters (ADC) offer high sensitivity and large dynamic range. One approach to increasing the dynamic range further is with a subranging architecture, whereby the output of a coarse ADC is converted back to analog and subtracted from the input signal, and the residue signal fed to a fine ADC for generation of additional significant bits. This also requires a high-gain broadband linear amplifier, which is not generally available within superconductor technology. In a preferred embodiment, a distributed digital fluxon amplifier is presented, which also integrates the functions of integration, filtering, and flux subtraction. A subranging ADC design provides two ADCs connected with the fluxon amplifier and subtractor circuitry that would provide a dynamic range extension by about 30-35 dB.
Analog-to-digital converter and image sensor
An analog-to-digital converter has a sampler to hold a sampled signal, an input signal predictor to generate a prediction signal at predetermined timing before a signal level of a ramp signal that monotonically increases or monotonically decreases with time crosses a signal level of the sampled signal, a comparator to compare signal levels of the ramp signal and the sampled signal to output a comparison signal showing whether the signal level of the ramp signal is larger than the signal lever of the sampled signal, a first counter to perform a count operation in synchronism with a first clock signal within a period from start of a comparison operation by the comparator to generation of the prediction signal, and a second counter to perform a count operation in synchronism with a second clock signal.
Quantum interference device, atomic oscillator, electronic apparatus, and moving object
An atomic oscillator includes a gas cell in which metal atoms are sealed, a heating unit that is driven by the supply of power and heats the gas cell, a power terminal, and a boosting circuit that boosts a voltage output from the power terminal and then is applied to the heating unit. The boosting circuit has a switching regulator function, and a switching frequency of the boosting circuit is equal to or higher than 10 kHz and equal to or lower than 10 MHz.
Clock phase adjusting circuit and semiconductor device including the same
A semiconductor device includes a buffer suitable for receiving an input signal, a clock buffer suitable for receiving a clock, a delay locked loop (DLL) suitable for delaying the clock to generate a delay locked clock, a code generation unit suitable for generating a digital code corresponding to 1/N of the clock cycle where N is an integer equal to or more than two, a delay unit suitable for delaying the clock corrected by the DLL by a value corresponding to the digital code to output a delayed clock, and a strobing unit suitable for strobing the input signal using the delayed clock.
Bimodal serial link CDR architecture
A system for generating a local clock, configurable to utilize a forwarded clock and a data stream, or a data stream only, as frequency and phase references. In one embodiment, the system includes a phase locked loop that may be referenced to a forwarded clock, or to a phase reference formed from received data, utilizing a sampler, a crossing sampler, and a bang-bang phase detector. The system includes a local phase recovery loop which may utilize the bang-bang phase detector as part of a phase detector for controlling a phase interpolator, the output of the phase interpolator serving as the local clock for clocking received data.
Adaptive clocking scheme to accommodate supply voltage transients
Adaptive clocking schemes for synchronized on-chip functional blocks are provided. The clocking schemes enable synchronous clocking which can be adapted according to changes in signal path propagation delay due temperature, process, and voltage variations, for example. In embodiments, the clocking schemes allow for the capacity utilization of a logic path to be increased.
Level shifter for a time-varying input
A level shifter circuit for coupling a first circuit, that uses a first supply voltage, with a second circuit, that uses a second supply voltage, includes an input node to receive an input signal and an output node to output to a level-shifted output signal corresponding with the input signal. An idle state on the input node corresponds with a particular binary logic value that is maintained for a first time period, and which is detected by a detection sub-circuit. Further, the level shifter circuit includes a first inverter that uses the second supply voltage, and has a feedback path between the input and output of the first inverter. The feedback path includes a first resistive element and a first transmission gate. The first transmission gate is configurable to open the feedback path when the detection sub-circuit detects an idle state on the input node of the level shifter circuit.
High frequency semiconductor switch circuit and high frequency radio system including same
A path switching FET and a shunt FET are separated from each other by a capacitor. The gates of the path switching FET and the shunt FET are controlled using an inverter circuit having a first internal power supply voltage (e.g., 2.5 V) as a power supply. The sources and drains of the path switching FET and the shunt FET are controlled using an inverter circuit having a second internal power supply voltage (e.g., 1.25 V) which is smaller than the first internal power supply voltage, as a power supply.
Inductive load driver slew rate controller
A circuit and method for digital controlling the slew rate of load voltage are provided. The circuit is comprised of a digital slew-rate control unit that utilizes a feedback signal to generate control signals where the feedback signal indicates the observed rate of voltage change on the load. The circuit is further comprised of a load driver circuit that is operated by the control signals and provides a slew-rate controlled output voltage used to operate a load switch, where the load switch provides power to the load. The circuit is configured to operate the load switch using a slew-rate controlling driver, depending on the state of the load switch transition, and a non-controlling driver.
Glitch suppression in an amplifier
A driver circuit includes detectors responsive to the operating region that a driven switch is operating in. The driver circuit is operative to drive the gate of the driven switch at a speed responsive to the output of the detectors.
High voltage switch
A high-voltage switching device is formed by: connecting a number of normally-on transistors, such as JFETs, in series with each other, where the drain of each transistor is connected to the source of the next; connecting the chain of normally-on transistors in series with a normally-off switch component, such as a MOSFET, where the drain of the normally-off switch component is connected to the source of the first transistor in the chain in the chain; and, for each transistor, connecting a voltage-clamping device, such as a diode, with the anode of the voltage-clamping device connected to the source of the transistor and the cathode of the voltage-clamping device connected to the gate of the next transistor in the chain.
Driver circuit for signal transmission and control method of driver circuit
A driver circuit for receiving a data input and generating an output signal according to at least the data input is provided. The driver circuit includes a pair of differential output terminals, a current mode drive unit and a voltage mode drive unit. The pair of differential output terminals has a first output terminal and a second output terminal. The current mode drive unit is arranged for outputting a first reference current from one of the first and second output terminals and receiving the first reference current from the other of the first and the second output terminals according to the first data input. The voltage mode drive unit is arranged for coupling a first reference voltage to one of the first and the second output terminals and coupling a second reference voltage to the other of the first and the second output terminals according to the first data input.
LC lattice delay line for high-speed ADC applications
This disclosure describes techniques and methodologies of using passive continuous time (CT) delay line for high-speed CT analog-to-digital converter (ADC) applications. In a continuous-time residual producing stage common to these CT ADCs, a proper delay between the analog input and DAC output is crucial. Specifically, using an inductor-capacitor (LC) lattice based delay element to enable high-performance CT pipeline ADC and CT delta-sigma (ΔΣ) ADC. The use of an LC lattice based delay element provides wide-band group delay for continuous-time signals with well-controlled impedance. This will be an essential circuit component to build a high-performance CT ADCs especially in architectures where the generation of a low-noise and low-distortion residual between the CT signal and its digitized version is needed. LC lattice based delay element enables noise-free, distortion-free wideband delay that is required for high speed continuous-time pipeline ADC and delta-sigma ADC.
Apparatus and method for transferring multiple asynchronous clock signals over a single conductor
Methods and systems for transferring two clock signals over a single conductor are disclosed. According to various disclosed embodiments, first and second input clock signals are generated at a first module. The rising and falling edges of a generated reference clock signal are used to transfer the two clock signals from the first module to a second module over the single conductor.
Apparatuses and methods for acoustic channel auto-balancing during multi-channel signal extraction
Systems and methods are described to automatically balance acoustic channel sensitivity. A long-term power level of a main acoustic signal is calculated to obtain an averaged main acoustic signal. Segments of the main acoustic signal are excluded from the averaged main acoustic signal using a desired voice activity detection signal. A long-term power level of a reference acoustic signal is calculated to obtain an averaged reference acoustic signal. Segments of the reference acoustic signal are excluded from the averaged reference acoustic signal using a desired voice activity detection signal. An amplitude correction signal is created using the averaged main acoustic signal and the averaged reference acoustic signal.
Low noise low-dropout regulator
Representative implementations of devices and techniques provide a regulator having a high regulation speed and low noise across a wide frequency range. A pass through device outputs a regulated voltage based on a control signal output by an error amplifier. The control signal is boosted via a regulated boost signal.
Super-efficient single-stage isolated switching power amplifier
A super-efficient single-stage switching power amplifier is realized by not incorporating a rectification process in its power conversion loop while incorporating a bidirectional active clamping circuit to not only remove or maximally reduce otherwise occurring disruptive ringing and spikes but also convert the energy otherwise associated with the ringing and spikes to return energy that goes back to the DC power supply.
Frequency and phase conversion circuit, wireless communication unit, integrated circuit and method therefor
A frequency and phase conversion circuit and wireless communication unit for supporting a plurality of different duty cycles is described. The frequency and phase conversion circuit comprises: a local oscillator module comprising a plurality of frequency conversion modules arranged to receive at least one input clock signal wherein a plurality of phases of the at least one input clock signal are selectable to support a plurality of different duty cycle clock signals; and at least one frequency conversion module comprising a plurality of mixer arrangements configured to receive at least one baseband input signal and the selected plurality of phases of the at least one input clock signal and output a frequency and phase converted representation of the at least one baseband input signal, wherein at least one of the plurality of mixer arrangements is re-used in a plurality of the selectable supportable duty cycles.
Broadband integrated RF/microwave/millimeter mixer with integrated balun(s)
A broadband radio frequency, microwave, or millimeter mixer system may include a balun and a mixer. The balun may have an unbalanced port; a balanced port; a first and a second inductor tightly and inversely magnetically coupled to one another; and a third inductor which is not magnetically coupled to the first or the second inductors. The mixer may be connected to the balanced port of the balun. The balun, including its three inductors, and the mixer may all be integrated onto a single substrate that forms an integrated circuit.
In accordance with the present invention there is provided a bi-stable oscillator circuit for detecting a load imparted to a surface. The bi-stable oscillator comprises an electrical amplifier, at least one resonator comprising an electrical transducer having a resonant frequency, a surface of the resonator forming the surface on which the load is to be detected and an impedance network having a resonant frequency. The resonator is arranged to be exposed to an environment under test, and the resonator and the impedance network are connected in parallel with the electrical amplifier such that when a load imparted to the surface exceeds a pre-determined threshold value the oscillator circuit oscillates at the resonant frequency of the impedance network and when a load imparted to the surface is less than the threshold value the oscillator circuit oscillates at the resonant frequency of the resonator, switching of the circuit oscillation frequency being indicative of the load crossing the predetermined threshold value.
Complementary Colpitts voltage controlled oscillator with low power and low phase noise
A complementary Colpitts voltage-controlled oscillator having the properties of low power and low phase noise are disclosed. The disclosed complementary Colpitts voltage-controlled oscillator includes: a first circuit composed as a PMOS Colpitts voltage-controlled oscillator having a first PMOS transistor, a first current source, a first capacitor, a second capacitor, and a first inductor but with the first inductor removed; a second circuit composed as an NMOS Colpitts voltage-controlled oscillator having a first NMOS transistor, a second current source, a third capacitor, a fourth capacitor, and a second inductor but with the second inductor removed; and a first transformer and a second transformer arranged between the first circuit and the second circuit.
Low-noise voltage-controlled oscillator
A low-noise and big tuning range voltage-controlled oscillator. Wherein a current source circuit is used for generating working current of the voltage-controlled oscillator, a resonance circuit is used for generating an oscillating signal of the voltage-controlled oscillator, the resonance circuit is an inductance and capacitance type resonance circuit, wherein capacitance adopts a metal oxide semiconductor (MOS) capacitive reactance tube or a reverse diode to increase the tuning range of the circuit, a negative resistance circuit is used for generating negative resistance to counteract positive resistance generated by the resonance circuit, and a feedback circuit is used for feeding back the oscillating signal generated by the resonance circuit to the current source circuit to add a new current to the current source.
Electrical test apparatus for a photovoltaic component
The present invention relates to electrical test apparatuses for photovoltaic modules and methods of testing photovoltaic modules.
Calibration system for solar collector installation
A solar concentrator calibration tool that compensates for inconsistencies in the fabrication, assembly and installation of a solar collector system, permits the solar collector to perform optimally. The calibration tool provides feedback information to a supervisory control processor, allowing the processor to compare the expected position of the sun to the “actual” position found by the calibration tool. The processor then generates a calibration signal, thereafter used by the collector's movement control mechanism, to compensate the tracking of the solar collector to accurately follow the movement of the sun, unconstrained by the effects of the construction inconsistencies.
Control method implemented in a variable speed drive
The invention relates to a method of control implemented in a variable speed drive, said method comprising the following steps of: for a switching of a transistor (100) of the rectifier stage (1), determination of a first control signal (Ce) corresponding to a first gate current (Ige) to be applied to the gate of the transistor to be switched so as to act on the rate of the variation of a first voltage (Vrec) generated by the switching, for a switching of a transistor (200) of the inverter stage (2), determination of a second control signal (Cs) corresponding to a second gate current to be applied to the gate of the transistor to be switched so as to act on the rate of the variation of a second voltage (Vinv) generated by the switching, determination of a first instant of switching (te) of the transistor of the rectifier stage and of a second instant of switching (ts) of the transistor of the inverter stage (2), the first control signal (Ce), the second control signal (Cs), the first instant of switching and the second instant of switching being determined so as to minimize the difference between the first voltage (Vrec) and the second voltage (Vinv).
Method and device for operating a brushless motor
The invention relates to a method for operating a brushless electric motor, the windings of which are controlled by an inverter using six switches, wherein the inverter comprises three outputs, which are associated with the windings of the electric motor, and wherein a respective power semiconductor switch is arranged between the output of the inverter and the windings, and wherein a detection unit for detecting defective switches, a unit for measuring the voltage at the outputs of the inverter, and a microcontroller for controlling switches are provided. The invention further relates to a device operating a brushless electric motor. In order not to damage the power semiconductor switches, according to the invention of the inverter is switched off by the microcontroller after a defective switch has been detected, such that no additional power is introduced in the windings (U, V, W) of the electric motor and the power semiconductor switches are opened in a predetermined motor angle position (φU, φv, φw). For said purpose, the motor angle positions (φu, φv, φw) are associated with a respective winding (U, V, W) and the power semiconductor switches thereof and are selected such that the associated power semiconductor switches are not damaged during opening.
Electric power tool
An electric power tool includes a motor with a rotor having a permanent magnet; a control unit that sets a control amount of the motor in accordance with operation of an operation portion and that drive-controls the motor based on the control amount; and a number-of-rotations detection unit that detects the number of rotations of the motor. During driving of the motor, when the number of rotations detected by the number-of-rotations detection unit has reached an upper limit number of rotations set in advance, the control unit shifts drive control of the motor to rotation control, in which the control amount is made to be increased or decreased so that the number of rotations of the motor becomes a predetermined target number of rotations.
Motor position controller
A motor position controller includes a temporary setting portion, a position command generating device, a motor controlling part, and a second conformity determination portion. The motor position controller drives a motor based on an input of a command pulse signal and a setting of a desired pulse form. The temporary setting portion is configured to consecutively temporarily set a plurality of the pulse form settings following a predetermined order. The position command generating device is configured to generate a position command signal from the command pulse signal in accordance with the desired pulse form setting. The motor controlling part is configured to supply power to the motor based on the position command signal. The second conformity determination portion is configured to input the command pulse signal, input the pulse form setting temporarily set by the temporary setting portion.
Apparatus for closed-loop mechanical energy harvesting
A closed-loop apparatus for converting mechanical energy into electrical energy utilizes a closed-loop channel including sections of different cross-section (including a first group of sections having a constrained cross-section and a second group sections having an enlarged cross-section). An energy-producing configuration (such as coils and/or electrodes) is formed to surround at least a portion of the channel. A closed-loop chain of energy-producing elements is positioned in channel such that when the chain moves along the channel, the mechanical motion generates electrical energy. The chain is formed to include a set of expandable assemblies that change in dimension as they pass through the different cross-section areas of the channel. An inert fluid is injected into the channel at one or more locations by a mechanical force, resulting in the creation of a pressure-induced force differential that initiates and maintains the movement of the chain with respect to the channel.
Piezoelectric element, liquid ejecting head, liquid ejecting apparatus, ultrasonic sensor, piezoelectric motor, and power generating apparatus
A piezoelectric element includes: a first electrode; a piezoelectric body layer which is provided on the first electrode; and a second electrode which is provided on the piezoelectric body layer, the piezoelectric body layer is made of a composite oxide with a perovskite structure, which contains bismuth, barium, iron, titanium, and strontium, and the content of strontium with respect to barium is equal to or greater than 5 mol % and equal to or less than 18 mol %.
Control device of power conversion unit and method of controlling power conversion unit
A control device and control method of power conversion unit applied to a three-phase AC grid. The control device includes detection unit, current detection unit, and signal processing unit. The detection unit detects three-phase voltage signal of the three-phase AC grid and calculates and generates negative sequence reactive current given signal. The current detection unit detects current of the power conversion unit to output feedback current signal. The signal processing unit receives the negative sequence reactive current given signal, positive sequence current given signal, and the feedback current signal to output modulation signal. The power conversion unit is electrically coupled to the signal processing unit and the three-phase AC grid. The power conversion unit absorbs negative sequence reactive currents from the three-phase AC grid according to the modulation signal when the three-phase voltage signal is unbalanced to reduce negative sequence voltage at output terminal of the power conversion unit.
Cells control in a multilevel converter
Cells in a phase leg of a multilevel converter are controlled through regulating, using tap-changer control, the modulation index of the converter to above 0.80, providing a group of carrier waves for the phase leg, where these carrier waves are identical but displaced in time from each other with a time delay, providing a voltage reference for the phase leg being separate from voltage references provided for other phase legs, stop switching of the cells when waveform values of a power transmission converter waveform are detected to be in a selected interval around a peak value of the power transmission converter waveform and control switching of the cells based on comparisons of the respective carrier waves with the voltage reference when the waveform values of the power transmission converter waveform are detected to be outside the selected interval.
Leakage current detection and switched on/off compensating current
A converter to which an alternating current is inputted from an AC power supply rectifies the alternating current to output it to a DC link. An inverter is connected through the DC link to the converter and converts a direct current into an alternating current to output it to a load. A leakage current detector outputs a detection current corresponding to a leakage current leaking from the load. A compensating current output end is connected to a location where the leakage current leaks, and outputs a compensating current compensating for the leakage current in response to the detection current. A switch sets whether to input the detection current to the compensating current output section or not.
Reconstruction pulse shape integrity in feedback control environment
A switched mode power converter includes a closed loop feedback control mechanism for regulating an output characteristic and a resonant type circuit for inclusion of resonant energy delivery. The characteristic impedance of the resonant type circuit is modified from an optimal energy transfer configuration to one that dampens fluctuations in a feedback signal used by the closed loop feedback mechanism. The modified characteristic impedance functions to dampen those fluctuations in the feedback signal resulting from leakage inductance energy provided by the resonant type circuit.
Current limiting scheme for a converter
A modulator configured to control switching of current through an inductor of a converter according to a current limiting scheme while converting an input voltage to an output voltage, which includes a current limit generator and a comparator network. The current limit generator is configured to provide a periodic ramping current limit value based on either the input voltage or the output voltage, an inductance of the inductor, a timing signal, and a predetermined maximum output current of the boost converter. The comparator network is configured to provide a switch control signal to control switching of current through the inductor by comparing a current sense value indicative of a current through the inductor with a lesser of a compensation error value and the periodic ramping current limit value. The converter may be configured as a peak current mode control converter in either boost or buck mode.
Switch mode power supply including binary pulse skipping
In one embodiment, a circuit comprises a sense circuit configured to sense an increase in an output voltage of a switching regulator under a light load condition. A pulse generating circuit generates a control signal to switch on and off a voltage input to the switching regulator. The pulse generating circuit reduces in a binary manner a switching frequency of the control signal under the light load condition as the sensed output voltage increases. As the output voltage rises, a clock signal is divided by two to remove every second pulse and applied to the pulse generating circuit. Further increases in the output voltage cause divisions of the clock frequency by four to remove 3 of 4 pulses so that only every fourth pulse remains. With output voltage increases, the frequency is divided by eight to remove 7 of 8 pulses so that every eighth pulse remains, and so forth.
Switched-mode power converter with split partitioning
A power converter is described that includes components arranged within a first die and a second die of a single package. The first die includes one or more first switches coupled to a switching node of a power stage. The second die includes one or more second switches coupled to the switching node of the power stage, a feedback control unit configured to detect a current level at the one or more second switches of the power stage, and a controller unit configured to control the one or more first switches and the one or more second switches of the power stage based at least in part on the current level detected by the feedback control unit.
DC-DC converter efficiency improvement and area reduction using a novel switching technique
A control logic of a switched DC-to-DC converter allows continuous switching to bring the DC-to-DC converter to a final output value during a startup phase, it allows skipping of clock switching pulses if they are not needed and allows burst mode of switching pulses dependent on a load applied to the output voltage of the DC-to-DC converter. No digital or analog regulator is required for the control logic.
Charge pump system and charge pump protection circuit
A charge pump system may include a charge pump including a plurality of boosting units boosting an input voltage input to an input terminal multiple times depending on clock signals and outputting the boosted voltage to an output terminal; and a charge pump protection circuit including a series resistor unit disposed between the output terminal and a ground and including a plurality of resistors connected to each other in series. A portion of the plurality of resistors are disposed in parallel to a portion of the plurality of boosting units.
Power supply apparatus with reducing voltage overshooting
A voltage generating unit generates a standard output voltage and sends to a voltage output side. A voltage detection unit detects a voltage of the voltage output side and informs a voltage gain control unit. When the voltage of the voltage output side is decreasing due to a dynamic load, the voltage gain control unit is configured to control the voltage generating unit to increase a gain of a voltage generated by the voltage generating unit, and the voltage generated by the voltage generating unit is lower than the standard output voltage. Then, the voltage gain control unit is configured to control the voltage generating unit to decrease the gain of the voltage generated by the voltage generating unit, and the voltage generated by the voltage generating unit is equal to the standard output voltage.
Power converter with low common mode noise
The present invention relates to a power converter with low common mode noise, at least comprising: a ground terminal, a power converting unit, a capacitor unit of common DC bus, a filtering capacitor unit, a filtering inductor unit, and a compensation unit. In the present invention, a filtering inductor unit including three primary windings and three auxiliary windings is used for making the power converting unit couple to three phase terminals of an external electrical apparatus. Moreover, the three auxiliary windings are further formed a compensation circuit by way of being connected with the compensation unit, such that the engineer is able to easily and effectively suppress the common mode noise occurring near the resonant frequency of the power converting apparatus through selecting a suitable turns ratio of the primary windings and the auxiliary windings.
Electronics apparatus and production method for an electronics apparatus
An electronics apparatus having a housing, an inverting device, a first circuit board connected to the inverting device via at least one line, and a second circuit board connected via a first galvanic connection to the first circuit board and connected via a second galvanic connection to at least component, and having a first filter situated on the first circuit board and upstream from the first galvanic connection, the first filter having a first discharge connection to the housing, and having a second filter situated on the second circuit board and downstream from the first galvanic connection, the second filter having a second discharge connection to the housing, and having a third filter situated on the second circuit board and upstream from the second galvanic connection, the third filter having a third discharge connection to the housing. A method for producing an electronics apparatus is also described.
Electronic apparatus and control method for high frequency AC to DC conversion
A high-frequency ac-dc power converter takes an input ac signal and converts it to an output dc signal. The converter has at least two front-end rectifier diodes arranged as a full wave rectifier of the input ac signal. A first inductor positioned at the output of the full wave rectifier. An output capacitor is connected across a load for the converter. There are at least one additional inductor and one additional capacitor. A switching circuit selectively forms different (LC) resonant circuits with the inductors and capacitors during a cycle of the input ac signal to form a dc-dc power converter.
Driver device for power factor correction circuit
There is provided a driver device for a power factor correction circuit including first and second main switches that are switched on and off with a phase difference therebetween, and first and second auxiliary switches that provide conduction paths of surplus voltage in the first and second main switches before the first and second main switches are switched on, the driver device including: an input unit receiving a plurality of input signals; and an output unit outputting a first control signal for the first main switch, a second control signal for the second main switch, a third control signal for the first auxiliary switch, and a fourth control signal for the second auxiliary switch based on a plurality of input signals.
Switching techniques to reduce current overshoot in a DC to DC converter
A DC/DC converter system includes gate control circuitry, a transformer, a second stage, and soft start control circuitry. The gate control circuitry is configured to generate a first and a second gate control signal configured to open and close first and second switches of an inverter circuitry, respectively, to generate an AC signal from a DC input signal. The transformer transforms the AC signal and the second stage rectifies the AC signal to a DC output signal. The soft start control circuitry generates a signal to delay a closing of the first switch during an initial portion (Td) of a first cycle of the first switch. A method of soft-starting a DC/DC converter includes generating first and second gate control signals and delaying closing of the first switch during Td.
Universal power supply system
A universal power supply system allows each board mounted DC power module or each AC/DC power supply device therein having identical dimensions and appearance to further have a specification setting circuit. When the board mounted DC power module or the AC/DC power supply device is plugged in a backboard module, the specification setting terminal outputs a specification identification signal to a monitoring circuit of the backboard module. As built in with a specification mapping table, the monitoring circuit can compare the specification identification signal to find a model number corresponding to the signal, and automatically sets a critical current value or critical power value of each board mounted DC power module for over-current protection or over-power protection. Accordingly, the universal power supply system can be adapted to different board mounted DC power modules or AC/DC power supply devices without redesigning the backboard module.
Connector and spring assembly for a generator
An assembly includes a resistor pack, a first spring clip, and a first rigid connector. The resistor pack has a first clip-shaped cavity therein. The first spring clip is disposed within the first clip-shaped cavity and the first connector is abutted by opposing portions of the first spring clip.
Hobby servo motor linear actuator systems
Hobby servo motor linear actuator systems are provided. In certain circumstances, a linear actuator system includes a lead screw attachment mechanism and a lead nut. The lead screw attachment mechanism is configured to be rotatably connected to an output shaft of a hobby servo motor assembly. The lead nut is configured to move linearly along the lead screw attachment mechanism as it is rotated. The system is optionally either open-looped or closed-loop. The lead screw attachment mechanism has an outer surface that can include multiple different types of threads such as, but not limited to, gear teeth and screw threads. The hobby servo motor assembly may include one hobby servo motor or multiple hobby servo motors that work together.
Stator and rotary electric machine
A stator includes a core fixed to a case of a rotary electric machine, and a plurality of winding wire coils that are wound on the core and that form a coil end protruded in the axial direction of the core. The two winding wire coils have a first and second conducting wires that are exposed in a distal end of each of the two coils. The stator includes: a joint in which the first and second wires are joined together at the coil end and in which proximal portions of the two coils approach each other with an acute angle therebetween so that the first and second wires lie on each other; and an insulating coat formed to enclose the joint with an insulating material that is coated entirely over peripheries of the two coils in their circumferential directions while filling a space across which the proximal portions form the acute angle. A rotary electric machine includes the stator, the case and a rotor.
Rotor for rotating electric machine
A rotor includes a rotor core having a plurality of pairs of magnet-receiving holes and a plurality of magnets respectively received in the magnet-receiving holes. Each pair of the magnet-receiving holes is arranged in a substantially V-shape opening radially outward and a center bridge formed between the two magnet-receiving holes of the pair. For each of the magnet-receiving holes, a protrusion is formed, at a position closer to a radially outer end than a radially inner end of the center bridge, so as to protrude from the center bridge inward of the magnet-receiving hole. Moreover, a magnetic flux barrier is formed at a radially innermost corner portion of the magnet-receiving hole and defined by a curved surface that includes three or more single-curvature surfaces having different curvatures. Among the single-curvature surfaces, the single-curvature surface which has the minimum curvature is positioned closest to the longitudinal axis of the rotor core.
Physical and virtual identification in a wireless power network
A wireless charging system is disclosed. The wireless charging system includes a detector configured to identify device information related to a device to be powered at a location, a location processor coupled with the detector and configured to deliver location-specific information related to the location to the device to be powered based on the detected device information, a power supply in communication with the location processor configured to wirelessly provide power to the device based on the detected device information, such that the location processor is configured to deliver the location specific information to the device via a first channel, and wherein the power supply is configured to wirelessly provide power to the device via a second channel.
System and method for efficient power distribution and backup
A system and method of power distribution and backup is provided. The power backup system includes a first uninterruptible power supply and a second uninterruptible power supply configured to drive a load in parallel. The first uninterruptible power supply and the second uninterruptible power supply are both connected through a direct connection or through at least two switches to at least two power sources.
Solar power generation, distribution, and communication system
A solar panel is disclosed that can be daisy-chained with other solar panels. The solar panel automatically generates output alternative current (AC) power that is in parallel with input AC power coming into the solar panel when the solar panel senses the input AC power so that the solar panel operates as a slave in this state. The solar panel automatically generates standalone AC output power when the solar panel fails to detect input AC power coming into the solar panel where the solar panel operates as a master in this state. The solar panel generates the standalone output AC power without any reliance on input AC power generated by a utility grid and/or other AC power sources external to the solar panel.
Secondary-battery monitoring device and battery pack
A secondary-battery monitoring device capable of realizing highly reliable overcurrent detection and a battery pack having it are provided. When an overcurrent flowing to a secondary battery is to be detected by utilizing a current detection voltage generated via on-resistance of a discharge-control switch and a charge-control switch, a voltage correction circuit that generates a correction voltage having a characteristic varied by positive slope or negative slope along with increase in a power supply voltage is provided, and the correction voltage is added to the detection voltage or a reference power supply voltage with the polarity that cancels out the slope of voltage variation caused in the detection voltage, and then the voltage is input to a comparator circuit. In this manner, variation in the overcurrent determination current is reduced.
Method and system for controlling charging parameters of a battery using a plurality of temperature ranges and counters and parameter sets
A method of charging a battery and a battery pack utilizing the same, is disclosed. The method enhances the battery life characteristic of a battery cell by varying the charging parameters (e.g., charging voltage, charging current, rate of charge, relative state of charge, and battery capacity) based a temperature of or around the battery cell is in a normal, extended, or abnormal temperature range when the battery cell is fully charged. The charging method includes determining whether a battery cell is being charged, and if the battery cell is being charged, determining whether the battery cell is fully charged; if the battery cell is fully charged, determining whether a temperature of or around the battery cell is in a normal range or in an extended range; and if the temperature is in the normal range, selecting a first charging parameter set, and if the temperature is in the extended range, selecting a charging condition of the battery cell as a second set value.
Battery charger cradle
In a battery charger cradle, a battery incorporated in a battery built-in device is charged by electric power induced to an induction coil. The cradle includes a primary coil for inducing electromotive force to the induction coil, a casing having a top plate atop of which the battery built-in device is placed, a movement mechanism for moving the primary coil along an inner surface of the top plate, and a position detection controller for detecting a position of the battery built-in device placed on the top plate and controlling the movement mechanism to bring the primary coil closer to the induction coil in the battery built-in device. When the battery built-in device is placed on the top plate, the position detection controller detects the position of the battery built-in device, and the movement mechanism moves the primary coil closer to the induction coil in the battery built-in device.
Charging cradle for a headset device and an earphone cover for the headset device
Disclosed is a charging cradle for a headset device, which includes a housing with a surface providing a mounting depression, and a cover with a transparent surface pivotably connected to the housing so as to open and close the mounting depression. The headset device is mounted in the mounting depression so as to charge an internal battery pack provided in the headset device. The cradle protects the headset device under charging, enabling the user to observe the charging state without opening it. An earphone cover for a headset device includes a projected semi-circular fixing ring for preventing the earphone from being removed from the ear. The earphone cover is provided in various sizes to fit a user's ear size, and may be rotated to change the rotational position of the fixing ring so as to enable the user to put the headset device selectively on the right or left ear.
Portable compact multiple-outlet power supply with circuit for supplying device-specific charging profiles to mobile telephones
An apparatus for providing electrical power, including an electrically non-conductive generally cube-shaped housing, an electrical power supply operationally connected and positioned in the housing, a first plurality of power outlets electrically connected to power supply for connecting three-prong plugs, a second plurality of power outlets for connecting male USB connectors, and a power cord operationally connected to the power.
Reconfigurable energy storage and power supply device
Charging devices, modular adapters, and circuits are provided. One charging device including a body including a rechargeable energy storage device and a housing. The housing includes at least one first coupling portion. The charging device further includes a modular adapter including a second coupling portion configured to be mated to the first coupling portion of the housing. When mated to the housing, the modular adapter is configured to be electrically connected to the rechargeable energy storage device. When the modular adapter is mated to the housing, the body and the modular adapter form a single integrated and substantially rigid structure.
System for optical wireless power supply
A system for optical wireless power transmission to a power receiving apparatus generally situated in a mobile electronic device. The transmitter has an optical resonator with end reflectors and a gain medium positioned between them, such that an optical beam is generated. The frequency of the beam is selected such that it is absorbed by almost all transparent organic materials in general use. A beam steering unit on the transmitter can direct the beam in any of a plurality of directions, and the beam is absorbed on the receiver by means of an optical-to-electrical power converter, through a low reflection surface. The band gap of this power converter is selected to be smaller than that of the gain medium. The receiver has a voltage converter including an inductor, an energy storage device and a switch. A beam steerer controller ensures that the beam impinges on the receiver.
Island grid power supply apparatus and methods using energy storage for transient stabilization
A system includes at least one generator coupled to an island grid, at least one energy storage unit and at least one converter coupled to the at least one energy storage unit and configured to be coupled to the island grid. The system further includes a control circuit configured to cause the at least one converter to transfer power between the at least one energy storage unit and the grid responsive to a change in a load on the island grid to maintain operation of the at least one generator at a predetermined operating point. The at least one generator may include a control system configured to match generator output to the load and the control circuit may be configured to maintain the control system of the at least one generator within a predetermined dynamic response capability limit responsive to the change in the load.
Power supply system and power control circuit thereof
A power supply system for supplying power to a chipset of an electronic device is provided. The power supply system includes a voltage converter, converting a supply voltage of a power supply into a predetermined voltage and supplying the predetermined voltage to the chipset, and a power control circuit connected between the voltage converter and the power supply. The power control circuit further includes a switch and a switch controller. The switch has a first terminal connected to the power supply, a second terminal connected to the voltage converter and a control terminal The switch controller, connected to the control terminal of the switch and the chipset, controls the switch to couple the power supply to the voltage converter according to the turning-on of the power supply system.
A protective circuit is provided. The protective circuit includes a charging unit, a voltage regulating unit, and a comparing unit. The charging unit receives a rise signal and an over-current signal, and outputs a first reference voltage. The voltage regulating unit receives the first reference voltage and adjusts an output voltage according, to the first reference voltage and a feedback voltage. The comparing unit receives the feedback voltage and compares the feedback voltage with a first threshold voltage to determine whether to output the rise signal to the charging unit.
High voltage protection circuit for non-tolerant integrated circuit
A high voltage protection circuit for a non-tolerant integrated circuit is described herein. A non-tolerant integrated circuit may be a powered down integrated circuit or a low voltage tolerant integrated circuit, that may be exposed to a high voltage source such as an external circuit, device or power supply. The high voltage protection circuit includes a limiting transistor circuit, a control transistor circuit, and an isolation transistor circuit. The limiting transistor circuit limits or holds the voltage at the signal bump to be less than a voltage that can damage the circuit. The isolation transistor circuit disconnects input/output signal circuitry from normal protection circuitry. Both the limiting transistor circuit and the isolation transistor circuit are controlled by the control transistor circuit and are responsive to the power supply voltage being off.
Vehicle-mounted electric rotating machine
A vehicle-mounted electric rotating machine includes a field winding wound on a rotor for magnetizing a field pole of the rotor, a stator winding for generating an AC voltage in accordance with a rotating magnetic field generated by the field pole, a power converter for converting the AC voltage to a DC voltage and outputting the DC voltage through a first power supply line connected to an output terminal thereof, and a load dump handling section for performing a load dump protection operation when a voltage of the output terminal of the power converter exceeds a threshold voltage. The load dump handling section is supplied with operating power through a second power supply line provided separately from the first power supply line.
Junction box auxiliary securing structure
The invention is relative to a junction box auxiliary securing structure having an auxiliary securing plate mounted in the junction box, and a switch base mounted securely on the auxiliary securing plate. The auxiliary securing plate extends from outside to inside, and oppositely defines long slots, short slots at two sides thereof, respectively, and a central opening formed at a center thereof. The four corners of the central opening have securing tongues slantly extending therefrom and toward a center of the auxiliary securing plate. Two sides of the switch base have a plurality of first fixing holes and a plurality of second fixing holes, respectively. The first fixing holes are corresponding to the long slots of the auxiliary securing plate, and the second fixing holes are corresponding to the short slots of the auxiliary securing plate.
Faceplate for electrical switching apparatus panel and electrical switching apparatus panel including same
A faceplate for use in a panel for electrical switching apparatus includes a generally planar member having a first surface, an opposite second surface and a number of apertures disposed through the first surface and the opposite second surface. Each aperture is configured to receive an actuatable mechanism of an electrical switching apparatus. The faceplate further includes a number of inclined features, each extending from the opposite second surface about a respective aperture of the number of apertures. At least one inclined feature includes an inclined surface disposed opposite the opposite second surface of the generally planar member. The inclined surface is disposed at a non-zero angle with respect to the generally planar member.
Sealed cable conduit electrical box
A cable conduit electrical box including a base having at least one opening for receiving a cable conduit, a cover removably attachable to the base, and an adapter removably positioned on the base or the cover for sealing the at least one opening around the cable conduit. A gasket may be positioned between the base and the cover and a gasket may surround the cable conduit.
Resistor, method of assembling the same, and switchgear
A resistor for suppressing magnetizing inrush current includes a container made of an insulating material and at least one resistive element housed in the container, the resistive element being connected to two bushings provided at the container, the outer surface of the container being coated with a conductive paint, and the paint being connected to the ground, thereby being able to be located between a cable and a switch, and being able to fix the outer surface thereof to a ground voltage level so that human contact safety is not impaired.
Arc resistant shutters
A connection system for connecting electrical devices to busses within a switchgear cabinet includes an independently movable shutter that slides along a bus bar, the shutter covering access to the bus bar in a disconnected position and allowing access in a connected position. The bus bar has an insulator cap covering its free end. The shutter is mounted to a spring-biased support. The shutter has an opening through which the bus bar passes. The shutter slides along the bus bar backwardly away from the insulator cap, in the connected position. The shutter slides forwardly along the bus bar toward the insulator cap, in the disconnected position. The insulator cap fits closely within the opening in the shutter to prevent access to the bus bar when in the disconnected position. The shutter can fit within arc attenuating phase barriers surrounding each bus bar and be constructed to be arc resistant.
Nitride semiconductor laser element
A nitride semiconductor laser element includes an n-type semiconductor layer, a p-type semiconductor layer, and an active layer between the n-type semiconductor layer and the p-type semiconductor layer. The active layer includes well layers, and at least one barrier layer provided between the well layers. The barrier layer includes a barrier layer having band gap energy higher than that of an n-side optical guide layer. The p-type semiconductor layer includes an electron barrier layer having band gap energy higher than that of all barrier layers comprised in the active layer. A p-side optical guide layer includes a first region disposed on a side of a final well layer and having band gap energy lower than that of the n-side optical guide layer, and a second region disposed on a side of the electron barrier layer and having band gap energy higher than that of the n-side optical guide layer.
Planar waveguide laser pumping module and planar waveguide wavelength conversion laser device
A waveguide is constructed by sandwiching a transparent member (4) and a laser medium (5) between a first clad 3-1 and a second clad 3-2. Pumping light (8) is made to be incident from a direction perpendicular to a direction of the optical axes of first to fourth laser oscillation light beams 9-1 to 9-4, and to alternately propagate through the transparent member (4) and the laser medium (5) in a zigzag manner so as to pump only resonator mode regions in the laser medium (5).
Rotatable power center for a work surface
A rotatable power center is configured for installation along a work surface or the like, and includes an outer housing and a pivotable inner housing having one or more electrical or data outlets. The inner housing is positionable between a use position in which the outlets are accessible along the work surface, and a non-use position in which the outlets are generally not accessible. The outer housing defines an upper opening through which different surfaces of the inner housing are exposed or accessible, depending on the inner housing position. Spindles or spindle caps are used to pivotable mount the inner housing to the outer housing, and may also serve to secure two inner housing pieces together. A separate latch may be provided to secure the inner housing at the use or non-use position. Optionally, a detent arrangement holds the inner housing at the use or non-use position.
Switchable modular jack assembly for telecommunications systems
A switchable modular jack assembly includes a housing which defines a receptacle for receiving an RJ14 modular plug, and a socket for receiving a pre-wired adapter plug. Each of the RJ14 modular plug and the adapter plug has electrical contacts on an exposed surface thereof. The jack assembly also includes leaf spring electrical contacts which extend into the receptacle and socket. When no RJ14 modular plug is received by the receptacle, the leaf spring electrical contacts contact the electrical contacts of the adapter plug. When an RJ14 modular plug is received by the receptacle, the leaf spring electrical contacts contact the electrical contacts of the RJ14 modular plug, but not the electrical contacts of the adapter plug.
Plug connector, receptacle connector and electrical connector assembly
A plug connector, a receptacle connector and an electrical connector assembly are disclosed. When the plug connector is engaged with the receptacle connector, the power mating bodies and the signal mating body of the receptacle connector respectively enter into the corresponding plug power ports and the plug signal port of the plug connector, and the plug power contacts and the plug signal contacts respectively enter into the receptacle power ports and the receptacle signal ports. The vertical blade-shaped mating end of the plug power contact is inserted between the elastic pieces of the corresponding two receptacle power contacts, and the head of the plug signal contact is inserted into the forked head of the corresponding receptacle signal contact.
Mezzanine connector assembly
A mezzanine connector assembly includes a mezzanine receptacle connector having a plurality of receptacle contacts arranged in pairs for carrying differential pair signals and each having a mating interface. The mezzanine receptacle connector has a plurality of receptacle ground shields surrounding each pair of receptacle contacts and providing electrical shielding from each other pair. The mezzanine connector assembly includes a mezzanine header connector having a plurality of header contacts arranged in pairs. Each header contact has a mating segment mated to the mating interface of the corresponding receptacle contact. The mezzanine header connector has a plurality of header ground shields surrounding each pair of header contacts and providing electrical shielding from each other pair of header contacts. The header ground shields are mechanically and electrically connected to associated receptacle ground shields to create shield boxes around the various mated pairs of header and receptacle contacts.
Electrical connector used for transmitting high frequency signals
An electrical connector includes an insulative housing defining a base portion and a tongue portion extending forwardly from the base portion, the tongue portion defines a first surface and a second surface disposed oppositely. A first terminal module is retained in the insulative housing and exposed on the first surface. And a shielding member is embedded in the tongue portion of the insulative housing and located between the first surface and the second surface. The first terminal module defines at least one grounding contact, the grounding contact defines a connecting portion projecting toward and contacting with the shielding member.
Shielded connector assembly
An assembly is disclosed herein, including a connector and a carrier for carrying the connector. The connector includes a plurality of terminals having terminal contacts, a first shield at least partially surrounding at least one first terminal and having a first shield contact and a second shield at least partially surrounding at least one second terminal and having a second shield contact. The carrier includes a plurality of signal conductors, e.g. being a circuit board or a connector body. The carrier also includes a plurality of, advantageously substantially identical, contact sites. The terminal contacts are contacted to a number of the contact sites of the carrier, and the first and second shield contacts are arranged adjacent each other so that they together fit and are contacted to one contact site of the carrier.
A lever connector includes a first connector, a second connector and a lever. The lever includes a locking portion provided to be bendable inward and outward with respect to a rotation direction of the lever. The first connector is provided with a locked portion to be locked with the locking portion. The rotation of the lever causes the locking portion to be bent outward with respect to the rotation direction of the lever, and then causes the locking portion to be bent inward with respect to the rotation direction of the lever such that the locked portion is locked with the locking portion. The locking portion is provided with an abutment portion that abuts on an edge part of an attachment hole of a panel when the first connector and the second connector are attached to the attachment hole in the middle of the rotation of the lever.
Electrical plug connector
The invention relates to a plug comprising a plurality of contact elements located in a plug housing and strain relief elements (200, 200′) arranged on the housing (110, 310), wherein both contact elements and strain relief elements can be fixed to a printed circuit board (10) using SMT technology. The invention is characterized in that the strain relief elements (200, 200′) are sheet metal elements that can be fixed to parts of the plug housing and are bent essentially at a right angle on the side facing the printed circuit board (10), thereby forming a bearing surface (220, 220′) for SMT attach.
Connecting element for a storage battery
The invention relates to a connection arrangement (1) comprising a connecting pin (2) extending along a first axis (AI), and a connecting element (7) having an electrically insulating housing element (8) comprising a housing wall (10) defining an inner space (9), wherein the contact element (13) is arranged in the inner space (9) of the housing element (8), wherein the contact element (13) can be connected to the connecting pin (2) along said first axis (AI), wherein the connecting element (7) comprises a securing element (8, 22) that can be moved relative to the contact element (13) from a securing position into a release position, and if the contact element (13) is in a contacting state with the connecting pin (2), the securing element (8, 22) is in the securing position, in which said securing element is connected to the securing region (4) of the connecting pin (2) in a form-fitting manner, by means of which the connection between the connecting element (7) and the connecting pin (2) is secured in a form-fitting manner, and the security element (8, 22) can be moved from the securing position into the release position, wherein in the release position the form-fit between the securing element (8, 22) and the connecting pin (2) is removed and thus a movement between the contact element (13) and the connecting pin (2) is rendered possible.
Connector with tuned channel
A connector is provided that includes a housing and the housing supports a plurality of wafers. Each wafer supports a terminal and adjacent signal wafers are configured so as to provide broad-side coupled terminals. A pair of signal terminals can be surrounded on both sides by ground terminals that offer shielding so as to help isolate one signal pair from another signal pair. The geometry of the wafers can be adjusted so as to provide a tuned transmission channel. The resultant tuned transmission channel can be configured to provide desirable performance at high signaling frequencies of 12-16 GHz or even higher signaling frequencies such as 20 GHz.
Plug connection having a guide element optimized for preventing shavings
A plug connector set-up for a control unit includes: a pin support having a pin; and a guide element having a lead-through for positioning the pin at a circuit board of the control unit. The lead-through has an entrance opening on the side facing the pin support and an outlet opening on the side facing away from the pin support. A diameter of the entrance opening is greater than a diameter of the outlet opening. The pin includes a centering region having a diameter which is less than the diameter of the entrance opening and greater than the diameter of the outlet opening.
Contact element for directly electrically contacting circuit boards
In a contact element for direct electrical contacting of a contact surface on a circuit board, a front insertion portion is constituted by a metal sheet having two multiple-ply lateral edges located opposite one another, and having a center portion located therebetween and having fewer plies, in particular one ply, the two lateral edges extending with their outer peripheral edges parallel to one another and each being turned over at least once; and at least one of the two outer lateral edges having a projecting contacting protrusion for direct electrical contacting of a contact surface.
Variable impedance coaxial connector interface device
A variable impedance interface device connecting a coaxial connector to an external component with a housing having a first end adapted to receive a coaxial connector and a second end having an interface where the housing is attachable to an external component, such as a printed circuit board. A cavity within the housing is defined by an inner surface and has a cavity first end and a cavity second end. The inner surface tapers between the cavity first end and the cavity second end. A mating position in the cavity has a certain dimension due to the taper of the inner surface, and defines a location at which a coaxial connector received by the housing positions. An impedance of the housing is based on the mating position and may be varied due to the impedance of the interface such that signal degradation at the interface is reduced.
Stepped spring contact
In an embodiment, a stepped spring contact may have a first portion, a transition portion, and a second portion. The first portion may include a plurality of windings whose pitch may vary. The second portion may include a plurality of windings that are closely wound. A pitch of the windings contained in the second portion may be, for example, constant. The transition portion may include a winding that may make mechanical and electrical contact with a first electrical conductor (e.g., a pad contained on a printed circuit board (PCB)). The first portion may include a tip. The tip may be, for example, flat shaped or conically shaped. The tip may make electrical contact with a second electrical conductor (e.g., a terminal connector). In operation, the stepped spring contact may provide electrical continuity between the first electrical conductor and the second electrical conductor.
Coaxial cable device and method involving weld and mate connectivity
A coaxial cable device and method for establishing weld and mate connectivity across a coaxial cable. The device includes an outer conductor engager and an inner conductor engager wherein the outer conductor engager includes a weld interface for engagement with a first portion of a coaxial cable, and wherein the inner conductor engager includes a mate interface for engagement with a second portion of the cable.
Antenna device including reflector and primary radiator
An antenna device includes a reflector which forms an offset antenna with a portion of a rotational paraboloid being cut out, and a primary radiator which radiates a beam having an elliptical cone shape to an aperture plane of the reflector. A reflector contour of the aperture plane of the reflector is formed in an elliptical shape along an isolux line of an elliptical beam radiated from the primary radiator. Accordingly, a loss due to spillover of the reflector is compensated for in a space in which the reflector contour of the present embodiment protrudes from a general reflector contour having a virtual elliptical shape formed to be perpendicular to an axis of a beam incident on an aperture plane of the reflector. In a space in which the general reflector contour protrudes from the reflector contour of the present embodiment, degradation of illuminance efficiency of the reflector is compensated.
Device and method for signature adaptation and an object with such a device
The invention pertains to a device for signature adaptation, comprising at least one surface element (100; 300; 500) arranged to assume a determined thermal distribution, wherein said surface element comprises at least one temperature generating element (150; 450a, 450b, 450c) arranged to generate at least one predetermined temperature gradient to a portion of said at least one surface element. Said surface element (100; 300; 500) comprising at least one display surface (50), wherein said display surface (50) is arranged to radiate at least one predetermined spectrum. The invention also pertains to a method for signature adaptation and an object such as a craft provided with the device according to the invention.
Boundary radiation prevention structure and electronic cabinet and electronic working platform using the boundary radiation prevention structure
The invention provides a boundary radiation prevention structure, comprising: a metal portion, and a guide portion. The metal portion has an incident plane adapted to block an incident electromagnetic wave, wherein the incident electromagnetic wave induces an induced current on the incident plane. The guide portion is located on one border of the incident plane and has a curved surface electrically connected to the metal portion for the induced current to pass through, wherein the curved surface is covered by an absorption layer for absorbing the incident electromagnetic wave and a boundary radiation generated from the induced current radiation.
On radiator slot fed antenna
An antenna includes a slot feed on the radiator itself (On Radiator Slot Fed Antenna or ORSFA) instead of the slot feed being a separate element. One of the advantages of having the slot feed integrated onto the radiator is that the antenna is less dependent on the adjacent conductive parts, since the feed is coupling to the radiator rather than to ground (as is done in a standard slot feed antenna concept). The Q of the radiator can also be reduced for a given volume, since the coupler is removed from the antenna volume. In an embodiment the antenna can include a transmission line and an impedance match circuit directly on the radiator.
Stylus and antenna thereof
A stylus includes a conductive rod, a circuit board, and an antenna. The conductive rod has a first opening. The circuit board is disposed in the conductive rod and includes a ground portion, wherein the conductive rod is electrically connected to the ground portion. The antenna includes a radiating portion and a feeding portion. The feeding portion is electrically connected to the circuit board and extends to the outside of the conductive rod via the first opening. The radiating portion is disposed at the outside of the conductive rod and is electrically connected to the feeding portion.
Combined floor mat and antennas for an electronic article surveillance system
An electronic article surveillance system has transmitter and receiver antennas secured to the bottom of a floor mat to provide an interrogation zone above the mat and an electronic control unit operable to energize the transmitter antenna to provide an electromagnetic field in the interrogation zone and sense electric signals from the receiver antenna to produce an alarm indicating the presence of a tag in the interrogation zone.
Lightweight cavity filter and radio subsystem structures
Embodiments provide a novel fabrication method and structure for reducing structural weight in radio frequency cavity filters and radio subsystems such as antennas and filters. The novel structures are fabricated by electroplating the required structure over a mold, housing, or substrate. The electrodeposited composite layer may be formed by several layers of metal or metal alloys with compensating thermal expansion coefficients. The first or the top layer is a high conductivity material or compound such as silver having a thickness of several times the skin-depth at the intended frequency of operation. The top layer provides the vital low loss performance and high Q-factor required for such filter structures while the subsequent compound layers provide the mechanical strength.
Dielectric waveguide with corner shielding
A dielectric wave guide (DWG) has a longitudinal dielectric core member. The core member has a first dielectric constant value. A cladding surrounds the dielectric core member and has a second dielectric constant value that is lower than the first dielectric constant. A portion of the DWG is configured as a corner having a radius. A conductive layer formed on an outer radius of the corner.
Emergency starting system and method for fuel cell hybrid vehicle
An emergency starting system and an emergency starting method of a fuel cell hybrid vehicle perform an emergency start when a DC power converter for starting fails. The emergency starting system includes: a fuel cell and a super capacitor connected through a main bus terminal in parallel; a driving inverter connected to the main bus terminal; a driving motor connected to the driving inverter; a balance-of-plant configured to activate the fuel cell; a starting DC power converter configured to drive the balance-of-plant; and a starting controller configured to control the super capacitor at the time of a start. The starting controller includes a super capacitor relay, an initial charging relay, and an initial charging resistor, the initial charging relay includes a plurality of relays, and the initial charging resistor includes a plurality of resistors.
Apparatus and method for manufacturing a modular battery pack with fluid circulation tube and interleaved fins
A battery pack includes at least one serpentine fluid circulation tube that extends around part of the periphery of a plurality of electric cells. First and second segments of the tube are disposed adjacent a first and a second edge of a first set of the plurality of electric cells. The sets of electric cells are disposed in an alternating arrangement. A first fin and a second fin are provided between each of the electric cells. The fins have a reverse turn wrapped around the segments of the tube. The fins have internal ends that are disposed between the electric cells and the tube segments. The battery pack may be assembled by folding the fins around the electric cells and the tube or by preforming folded sheets that define thermal fins and assembling the folded sheets over segments of the tube from opposite sides of the electric cells.
Circuits and methods for determination and control of signal transition rates in electrochemical cells
A charge/discharge input is for respectively supplying charge to, or drawing charge from, an electrochemical cell. A transition modifying circuit is coupled between the charge/discharge input and a terminal of the electrochemical cell and includes at least one of an inductive constituent, a capacitive constituent and a resistive constituent selected to generate an adjusted transition rate on the terminal sufficient to reduce degradation of a charge capacity characteristic of the electrochemical cell. A method determines characteristics of the transition modifying circuit. A degradation characteristic of the electrochemical cell is analyzed relative to a transition rate of the charge/discharge input applied to the electrochemical cell. An adjusted transition rate is determined for a signal to be applied to the electrochemical cell that will reduce the degradation characteristic. At least one of an inductance, a capacitance, and a resistance is selected for the transition modifying circuit to achieve the adjusted transition rate.
Traction battery thermal plate with flexible bladder
A traction battery thermal plate assembly may include a structure having edge portions defining a cavity and configured to support a battery cell array. A flexible bladder may be disposed within the cavity between the structure and array. The flexible bladder may be configured to be filled with a fluid such that the bladder contacts the array to transfer heat between the array and fluid. The assembly may include a frame sized to receive the flexible bladder and configured to support the flexible bladder. An inlet port may be in fluid communication with the flexible bladder and a pump, and may be configured to deliver fluid to the flexible bladder at a pump output rate. The flexible bladder may include ribs defining channels therebetween. The channels may be configured to direct fluid flow along the at least one surface of the battery cell array.
Magnesium borohydride and its derivatives as magnesium ion transfer media
The electrolyte includes a magnesium salt having the formula Mg(BX4)2 where X is selected from H, F and O-alkyl. The electrolyte also includes a solvent, the magnesium salt being dissolved in the solvent. Various solvents including aprotic solvents and molten salts such as ionic liquids may be utilized.
Positive electrode including first and second lithium compounds and lithium battery using same
A positive electrode having a surface on which a positive electrode active material composition including a positive electrode active material is formed. The positive electrode includes a first lithium compound having an open-circuit voltage less than 3V with respect to lithium metal, and a second lithium compound having an open-circuit voltage of 3 V or greater with respect to lithium metal. The first lithium compound includes a solid solution represented by Formula 1: xLizM1-yM′yO2-(1−x)LiaM″bMocO3.
Microbattery and method for manufacturing a microbattery
A microbattery that includes, in succession starting from a first substrate: a first current collector, a first electrode, an electrolyte, a second electrode consisting of a solder joint, a second current collector and a second substrate. Additionally, a method for manufacturing a microbattery, which includes the following steps: forming a thin-film multilayer including, in succession from the first substrate, a first current collector, a first electrode, an electrolyte and a first metal film; forming a second current collector on a face of a second substrate; and forming a second electrode by soldering the first metal film and the second current collector together, said substrates being placed facing each other during assembly.
Fuel cell, method for manufacturing the same, and application apparatus used for manufacturing the same
In a fuel cell, a cell 105 including an anode 109, a solid electrolyte film 111 and a cathode 113 on an outer peripheral surface of a substrate tube 103 is formed in a circumferential direction of the substrate tube 103. A plurality of the cells 105 are arranged along a longitudinal direction of the substrate tube 103, and an interconnector 107 connecting the cells 105 electrically in series is formed between the adjacent cells 105. A thickness of an end portion of the cathode 113 in the longitudinal direction, the portion being in contact with the interconnector 107, is larger than a thickness of a center portion of the cathode 113 in the longitudinal direction. Thereby, high power generation performance can be achieved.
Hydrogen generator and fuel cell system
A hydrogen generator includes: a reformer configured to generate a hydrogen-containing gas by using a raw material; a hydro-desulfurizer configured to remove a sulfur compound in the raw material; a recycle passage through which the hydrogen-containing gas is supplied to the raw material before the raw material flows into the hydro-desulfurizer; a booster configured to supply the raw material to the reformer; a raw material supply passage through which the raw material to be supplied to the reformer flows; and an ejector which is disposed on the raw material supply passage provided downstream of the booster and upstream of the hydro-desulfurizer and into which the hydrogen-containing gas flows from the recycle passage.
Passive anode gas recovery system for fuel cell
A passive anode gas recovery system for fuel cells is revealed. The system includes a fuel cell, a fuel supply device, an electronically controlled regulator, a first ejection module, a second ejection module, a hydrogen recovery module, and a controller. The system is a passive fuel recovery system disposed on an outlet end of an anode of the fuel cell. By the controller, the hydrogen recovery module recovers unconsumed hydrogen gas in the fuel cell provided by the fuel supply device into two ejection modules with different orifice diameters for recycling and reuse. The system has advantages of low cost, no extra energy consumed, and no external controller required. The system can be applied to developing fuel cell systems with high efficiency and low cost.
Fuel cell cooling system for vehicle and fuel cell-powered vehicle
The grill shutter is disposed between the front grill and the air intake duct. The grill shutter is capable of opening or closing shutter members and regulating positions of the shutter members when being opened. When a maximum supplied flow rate of air provided by the wind during running is greater than a flow rate of air required for the hydrogen fuel battery, the required flow rate of air is established only by opening/closing control of the shutter members through a grill shutter opening instruction. If this is not the case, the grill shutter members are opened fully through the grill shutter opening instruction to maximize the volume of the wind during running taken in from the front grille. Additionally, a shortfall in the required flow rate of air for the hydrogen fuel battery is compensated for by actuating the blower through a blower speed instruction.
In one embodiment, in a fuel cell, a first electrode supplied with an oxidant gas includes a first gas diffusion layer having a first porous base material and a first catalyst layer having a second porous base material. The first catalyst layer is stacked to the first gas diffusion layer. The second porous base material has a pore diameter distribution with a peak in a range of 0.04 μm to 0.12 μm, and a volume ratio of pores with diameters of 0.04 μm to 0.12 μm to all the pores being 17% or more. A second electrode supplied with a fuel includes a second gas diffusion layer having a third porous base material and a second catalyst layer having a fourth porous base material. The second catalyst layer is stacked to the second gas diffusion layer. An electrolyte film is held between the first and second catalyst layers.
Silicon oxide for anode of secondary battery, method for preparing the same and anode of secondary battery using the same
Provided is a silicon oxide for an anode of a secondary battery, having a good mechanical lifespan and electrical properties, and a method for preparing the same and an anode of a secondary battery using the silicon oxide. According to the method, a mixture is prepared by mixing SiCl4 and ethylene glycol, a gel is manufactured by stirring the mixture, and the gel is heat treated to prepare silicon oxide for an anode of a secondary battery.
Manufacturing methods of materials powder for performance improved electrode and using the same electrode and its application
Disclosed is a material for an electrode having an excellent performance and an excellent durability by maintaining high electrical conductivity and by restraining the growth of the grain at a high temperature. The material can be manufactured by synthesizing composite materials through use of a metallic material of Mo and a ceramic material, and then the composite materials can be used as the electrode.
Negative electrode material for lithium ion secondary batteries, and method for producing same
A negative electrode material for lithium ion secondary batteries comprises amorphous coated particles that are composed of a plurality of consolidated particles having no specific shape, said consolidated particles being obtained by consolidating a plurality of primary spheroidized graphite particles, and 0.5-20% by mass of an amorphous carbon layer that covers the surfaces of the consolidated particles and binds the consolidated particles with each other; and 0.5-20% by mass of a highly crystalline carbon layer that is formed so as to cover the outer surfaces of the amorphous coated particles and has an interplanar distance ascribed to CVD processing of 0.335 nm or more but less than 0.3369 nm. The negative electrode material for lithium ion secondary batteries is also characterized by having a porosity of 5% by volume or less, and a method for producing the negative electrode material for lithium ion secondary batteries.
A secondary battery is provided, including an electrode assembly, a case accommodating the electrode assembly, a cap assembly, and an electrode terminal portion. The cap assembly includes a cap plate covering the case, an inversion plate formed in the cap plate, and an insulation plate having a first side connected to the inversion plate and a second side positioned on the cap plate. The inversion plate is configured to be inverted when the internal pressure of the case is greater than or equal to a critical level. The electrode terminal portion includes a fastening part electrically connected to the electrode assembly and a short-circuit member electrically connected to the fastening part. The short-circuit member is configured to make contact with a top portion of the insulation plate when an elastic force is applied on the short-circuit member toward the cap plate.
Battery connection member and battery connection body
Prevention of interference between an electric wire and a terminal in a wiring part, and downsizing of the wiring part are achieved. A battery connection member, includes a plurality of housings accommodating a bus bar connecting in series a plurality of batteries, and one or more terminals electrically connected to the bus bar; and a wiring part arranged in parallel along the plurality of housings in a direction intersecting a connecting direction of the electric wire relative to the terminals. The wiring part includes: a communication part formed to communicate with inside the wiring part, and positioning an end of a swaging part of the terminal therein; and an electric wire protection part continuing to the communication part, projecting toward inside the wiring part, and formed to prevent contact of the terminal positioned inside the communication part and the electric wire connected to the other terminal.
Separator having heat resistant insulation layers
A separator (1) having heat resistant insulation layers for an electric device includes a resin porous substrate (2), and heat resistant insulation layers (3) formed on both surfaces of the resin porous substrate (2) and containing heat resistant particles having a melting point or a thermal softening point of 150° C. or higher. A parameter X represented by the following mathematical formula 1 is greater than or equal to 0.15: X = ( A ′ + A ″ ) C × ( A ′ / A ″ ) 2 [ Math 1 ] where A′ and A″ represent thicknesses (μm) of the respective heat resistant insulation layers (3) formed on both surfaces of the resin porous substrate (2) while fulfilling a condition of A′≧A″, and C represents the entire thickness (μm) of the separator (1) having heat resistant insulation layers.
Tiered battery cabinet
An apparatus and method of mounting storage batteries are presented in which batteries in multiple tiers may be easily accessed for installation and servicing. A battery cabinet or relay rack has provision for multiple tiers of batteries spaced so that batteries may be inserted in each tier. The batteries are supported by a tray or other structure so that they are positioned to permit top access to the battery terminals mounted on the front or front to surfaces of the battery. Tiers are positioned further from the front of the relay rack as the height of the tier increases.
Electrochemical energy storage devices
Provided herein are energy storage devices. In some cases, the energy storage devices are capable of being transported on a vehicle and storing a large amount of energy. An energy storage device is provided comprising at least one liquid metal electrode, an energy storage capacity of at least about 1 MWh and a response time less than or equal to about 100 milliseconds (ms).
Electronic device displays with border masking layers
An electronic device may be provided with a display. The display may have an active area with an array of display pixels and an inactive border region containing metal lines and other support circuitry. The array of display pixels may be formed from organic light-emitting diode structures in an organic-light-emitting diode layer. The display may also include an encapsulant layer on the organic light-emitting diode layer and a substrate layer. An opaque masking layer may be formed in the inactive border region. The opaque masking layer may overlap structures in the inactive border region such as the support circuitry, thereby blocking the support circuitry from view. The opaque masking layer may be formed a glass layer in the display, in part of a polarizer in a display, under a planarization layer, or between other layers in the display.
Organic EL device and method for manufacturing organic EL device
Provided is an organic EL device having high reliability, wherein decrease of the luminance due to the generation of a gas such as water vapor is suppressed. This organic EL device is provided with: an interlayer insulating film that is formed on a substrate; a lower electrode that is formed above the interlayer insulating film so as to correspond to a light emitting region; a light emitting layer that is formed on the lower electrode in the light emitting region; and an upper electrode that is formed on the light emitting layer. A gap is formed between the interlayer insulating film and the lower electrode.
Edge barrier film for electronic devices
In some embodiments, a first product is provided. The first product may include a substrate, a device having a device footprint disposed over the substrate, and a barrier film disposed over the substrate and substantially along a side of the device footprint. The barrier film may comprise a mixture of a polymeric material and non-polymeric material. The barrier film may have a perpendicular length that is less than or equal to 3.0 mm from the side of the device footprint.
Organic electro-luminescent display device
An organic EL display device includes an inorganic insulating film including a contact part as an opening where a contact electrode made of a conductive film is exposed, a TFT circuit layer provided on the inorganic insulating film and including a circuit including a thin film transistor, an organic EL element layer provided on the TFT circuit layer and including an organic EL element whose light emission is controlled by the circuit, and a sealing layer covering the organic EL element layer and made of an inorganic insulating material.
Organic semiconductor element
By introducing new concepts into a structure of a conventional organic semiconductor element and without using a conventional ultra thin film, an organic semiconductor element is provided which is more reliable and has higher yield. Further, efficiency is improved particularly in a photoelectronic device using an organic semiconductor. Between an anode and a cathode, there is provided an organic structure including alternately laminated organic thin film layer (functional organic thin film layer) realizing various functions by making an SCLC flow, and a conductive thin film layer (ohmic conductive thin film layer) imbued with a dark conductivity by doping it with an acceptor and a donor, or by the like method.
Organic electroluminescence device
An organic electroluminescence device according to the invention includes: a cathode; an anode; and an organic layer being interposed between the cathode and the anode, the organic layer comprising one or more layers comprising at least an emitting layer. The emitting layer contains: an anthracene derivative represented by a formula (1) below; and a pyrene derivative represented by a formula (21) below.
Organic electroluminescent materials and devices
Compounds having a structure of Formula I, where G1 has the formula having the structure are described. In the structure of Formula I: Z1 to Z24 are each independently selected from group consisting of carbon and nitrogen; p is an integer from 1 to 10; adjacent carbazole groups G11, G12, and G13 are each bonded together either by a 9N-2C bond or a 9N-3C bond; G1 can include at least one 9N-2C intercarbazole bond and at least one 9N-3C intercarbazole bond; L and G2 are each independently selected from the group consisting of alkyl, aryl, or heteroaryl, which may be further substituted; m and n are both integers; and m+n ranges from 1 to the maximum number of possible substituents on L. Formulations and devices, such as an OLEDs, that include the compound of Formula I are also described.
Organic compound, light-emitting element, display module, lighting module, light-emitting device, display device, electronic appliance, and lighting device
A novel organic compound is provided. In addition, a novel organic compound with high heat resistance is provided. In the organic compound, a dibenzoquinoxaline skeleton and a 4,4-bidibenzofuran skeleton or a 4,4′-bidibezothiophene skeleton are connected to each other through an arylene group.
Method for making organic light emitting diode array
The disclosure relates to a method of making organic light emitting diode array. A base defining a number of convexities is provided. A number of first electrodes are applied on the number of convexities. A number of electroluminescent layers are transfer printed on the number of first electrodes to form the number of organic light emitting layers. A patterned second insulative layer is made to cover the number of first electrodes and expose the number of organic light emitting layers. A second electrode is electrically connected to the number of organic light emitting layers.
Apparatus and method for coating organic film
An apparatus and method for coating an organic film are disclosed. The apparatus comprises an evaporation device, an electron emission device and a spray device; wherein the evaporation device comprises an evaporation container, the evaporation container is a linear evaporation container, in which a uniform organic gas is generated; the electron emission device is horizontally arranged over the evaporation container such that the organic gas evaporated in the evaporation container is uniformly charged and becomes charged organic gas; the spray device is provided with an electric field, under which the charged organic gas is moved toward a substrate so as to deposit the organic film on the substrate.
Method for fabricating organic light emitting display device by predepositing a solvent to increase wettability and inkjet print device used therein
A method for fabricating an organic light emitting display device includes forming a first electrode on a substrate; forming a pixel-defining film having an opening exposing the first electrode; forming an ink non-reactive solvent portion by discharging of an ink non-reactive solvent at the opening and forming an organic light emitting layer by discharging an organic light emitting ink on the ink non-reactive solvent portion; and forming a second electrode on the organic light emitting layer.
Resistance variable memory structure and method of forming the same
A semiconductor structure includes a memory region. A memory structure is disposed on the memory region. The memory structure includes a first electrode, a resistance variable layer, a protection material and a second electrode. The first electrode has a top surface on the memory region. The resistance variable layer has at least a first portion and a second portion. The first portion is disposed over the top surface of the first electrode and the second portion extends upwardly from the first portion. The protection material surrounds the second portion of the resistance variable layer. The protection material is configurable to protect at least one conductive path in the resistance variable layer. The second electrode is disposed over the resistance variable layer.
Some embodiments include a memory cell having a data storage region between a pair of conductive structures. The data storage region is configured to support a transitory structure which alters resistance through the memory cell. The data storage region includes two or more portions, with one of the portions supporting a higher resistance segment of the transitory structure than another of the portions. Some embodiments include a method of forming a memory cell. First oxide and second oxide regions are formed between a pair of conductive structures. The oxide regions are configured to support a transitory structure which alters resistance through the memory cell. The oxide regions are different from one another so that one of the oxide regions supports a higher resistance segment of the transitory structure than the other.
Magnetic devices and methods of manufacturing the same
Magnetic devices, and methods of manufacturing the same, include a stack structure including at least one magnetic layer, etched using an etching gas including at least 70 volume percent of a hydrogen-containing gas and at least 2 volume percent of CO gas.
Semiconductor storage device with magnetoresistive element
According to one embodiment, a semiconductor storage device is disclosed. The device includes first magnetic layer, second magnetic layer, first nonmagnetic layer between them. The first magnetic layer includes a structure in which first magnetic material film, second magnetic material film, and nonmagnetic material film between the first and second magnetic material films are stacked. The first magnetic material film is nearest to the first nonmagnetic layer in the first magnetic layer. The nonmagnetic material film includes at least one of Ta, Zr, Nb, Mo, Ru, Ti, V, Cr, W, Hf. The second magnetic material film includes stacked materials, including first magnetic material nearest to the first nonmagnetic layer among the stacked materials, and second magnetic material which is same magnetic material as the first magnetic material and has smaller thickness than the first magnetic material.
According to one embodiment, a magnetic memory is disclosed. The magnetic memory includes a substrate, and a contact plug provided on the substrate. The contact plug includes a first contact plug, and a second contact plug provided on the first contact plug and having a smaller diameter than that of the first contact plug. The magnetic memory further includes a magnetoresistive element provided on the second contact plug. The diameter of the second contact plug is smaller than that of the magnetoresistive element.
Vertical hall device with electrical 180 degree symmetry
A vertical Hall device indicative of a magnetic field parallel to a surface of a substrate comprises first, second, third and fourth terminals. The vertical Hall device further comprises contacts to generate a Hall effect signal indicative of the magnetic field. At least one pair of Hall effect regions is provided which comprises a first Hall effect region and a second Hall effect region formed in the substrate. A first group of the contacts is arranged in or at a surface of the first Hall effect region, the first group comprising a first and second outmost contacts. A second group of contacts is arranged in or at a surface of the second Hall effect region, the second group comprising third and fourth outmost contacts. Each of the first, second, third and fourth terminals is connected to a same number of outmost contacts.
Method of implementing a ferroelectric tunnel junction, device comprising a ferroelectric tunnel junction and use of such a device
The invention relates to a method of implementing a ferroelectric tunnel junction, said junction comprising to films each forming an electrode-type conductive element, and separated by a film forming a ferroelectric element acting as the tunnel barrier, said ferroelectric element being able to possess a remanent polarization. According to the invention, the ferroelectric element possesses a domain structure, said domains corresponding to regions of the ferroelectric element the polarization of which is oriented one way in a single direction; and when a voltage is applied between the electrodes, the absolute value of the voltage being equal to or higher than the absolute value of what is called a saturation voltage, the ferroelectric element main comprises only a single domain; and when a voltage is applied between the electrodes, the absolute value of the voltage being lower than the absolute value of what is called the saturation voltage, the ferroelectric element comprises a plurality of separate domains, the spatial distribution of said domains and their proportions being controlled by the chosen voltage value.
Method of manufacturing an ultrasonic transducer electrode assembly
A method of fabricating an ultrasound transducer includes providing a substrate having a first side and a second side opposite the first side. A bottom electrode is formed over the first side of the substrate. A piezoelectric element is formed over the bottom electrode. The piezoelectric element has a chamfered sidewall. A top electrode is formed over the piezoelectric element. A step metal element is formed over a portion of the top electrode proximate to the chamfered sidewall of the piezoelectric element.
Nano-piezoelectric generator and method of manufacturing the same
A nano-piezoelectric generator includes a first electrode and a second electrode, at least one nano-piezoelectric unit, formed of a semiconductor piezoelectric material having a nano-structure, disposed between the first and the second electrodes, and an interlayer, formed of an insulating material, disposed between the first electrode and the at least one nano-piezoelectric unit.
Energy harvester with improved heat flow arrangement
A thermoelectric energy harvesting system may include a thermoelectric generator that may produce a voltage in response to a temperature difference across the thermoelectric generator. The thermoelectric generator may be captured between the housing and the base member. The system may include at least one mechanical fastener coupling the housing to the base member and including a shoulder spacer formed of thermally-insulating material and positioned under the mechanical fastener.
Flip chip package structure and wafer level package structure
A flip chip package structure includes a package base and a LED chip. The package base includes a first substrate, a first and a second electrodes disposed on the first substrate and a bonding layer disposed on the first substrate. The LED chip is flipped on the package base and includes an epitaxy layer, a third and a fourth electrodes disposed on the epitaxy layer and contacting the first and the second electrodes, a second insulating layer disposed between the third and the fourth electrodes, and a plurality of bonding pillars disposed on the second insulating layer and contacting the bonding layer. A minimum interval between the bonding layer, the first and the second electrodes and a minimum interval between the bonding pillars, the second and the third electrodes are larger than a width of each bonding pillar.
A light-emitting device comprises: a supporting member having a top surface with a first surface area and a bottom surface with a second surface area; a first conductive via having a top surface with a third surface area; a second conductive via separated from the first conductive via and having a top surface with a fourth surface area, wherein the supporting member surrounds the first conductive via and the second conductive via; and a semiconductor structure comprising an active layer on the supporting member; wherein the sum of the third surface area and the fourth surface area is greater than 40% of the first surface area and smaller than the first surface area.
Light-emission element assembly and method of manufacturing same, as well as display
A light-emission element assembly includes: a light-emission element; a mold section in which the light-emission element is molded; a pad section protruding from an undersurface of the mold section, and electrically connected to the light-emission element; and a reinforcement section provided in the pad section, and projecting towards a side on which the mold section is provided.
Light emitting device and method for manufacturing the same
According to one embodiment, a light emitting device includes a first base section, a light emitting section, and a first wiring section. The light emitting section is embedded on a first surface side of the first base section. The light emitting section includes a light emitting element. The first wiring section is provided on the first surface of the first base section. The first wiring section is connected to the light emitting element.
Light-emitting device with reflecting electrode
An electrode structure for effectively improving the stability of a semiconductor LED includes a reflecting layer capable of current spreading. In such an electrode structure, the current injects from the side surface of the reflecting layer to form a certain potential gradient over the contact surface between the electrode and the LED contact surface, thereby inhibiting the metal ion of the reflecting layer from migration due to electric field during usage, thereby improving device stability. In addition, the electrode portion for current injection can include a high-reflectivity material yet not vulnerable to ion migration, thereby increasing the entire reflecting area and improving luminous efficiency.
Near UV light emitting device
Disclosed is a near UV light emitting device. The light emitting device includes an n-type contact layer, a p-type contact layer, an active area of a multi-quantum well structure disposed between the n-type contact layer and the p-type contact layer, and at least one electron control layer disposed between the n-type contact layer and the active area. Each of the n-type contact layer and the p-type contact layer includes an AlInGaN or AlGaN layer, and the electron control layer is formed of AlInGaN or AlGaN. In addition, the electron control layer contains a larger amount of Al than adjacent layers to obstruct flow of electrons moving into the active area. Accordingly, electron mobility is deteriorated, thereby improving recombination rate of electrons and holes in the active area.
Nanowire structure and method for manufacturing the same
A light emitting diode (LED) structure includes a plurality of devices arranged side by side on a support layer. Each device includes a first conductivity type semiconductor nanowire core and an enclosing second conductivity type semiconductor shell for forming a pn or pin junction that in operation provides an active region for light generation. A first electrode layer extends over the plurality of devices and is in electrical contact with at least a top portion of the devices to connect to the shell. The first electrode layer is at least partly air-bridged between the devices.
Semiconductor chip that emits polarized radiation
A semiconductor chip that emits radiation includes a semiconductor body having an active zone, which emits unpolarized radiation having a first radiation component of a first polarization and having a second radiation component of a second polarization. A lattice structure acts as a waveplate or polarization filter and causes an increase in one radiation component relative to the other radiation component in the radiation emitted by the semiconductor chip through an output side. Therefore, the semiconductor chip emits polarized radiation, which has the polarization of the amplified radiation component. The attenuated radiation component remains in the semiconductor chip an optical structure, which converts the polarization of at least part of the attenuated radiation component remaining in the semiconductor chip to the polarization of the amplified radiation component, and a reflective rear side opposite the output side.
Epitaxy structure of a light emitting element having III-nitride quantum wells
An epitaxy structure of a light emitting element includes a gallium nitride substrate, an N-type gallium nitride layer, a quantum well unit, and a P-type gallium nitride layer. The gallium nitride substrate includes a gallium nitride buffer layer, a gallium nitride hexagonal prism, and a gallium nitride hexagonal pyramid. The gallium nitride hexagonal prism extends from the gallium nitride buffer layer along an axis. The gallium nitride hexagonal pyramid extends from the gallium nitride hexagonal prism along the axis and gradually expands to form a hexagonal frustum. The N-type gallium nitride layer is located on the gallium nitride hexagonal pyramid. The quantum well unit includes an indium gallium nitride layer located on the N-type gallium nitride layer and a gallium nitride layer located on the indium gallium nitride layer. The P-type gallium nitride layer is located on the gallium nitride layer.
Nitride light emitting diode and fabrication method thereof
An epitaxial structure of light emitting diode with a current modulation layer, and more specifically, a high-resistivity material is injected to change the current conduction path, and implementation of the main structure is to grow a high-resistivity material (e.g., InxAlyGa1-x-yN) over the N-type conductive layer or the P-type conductive layer till part of current conduction path is exposed through high-temperature H2 in-situ etching in the reacting furnace and to grow the N-type or the P-type conductive layer for coverage. This design for forming a current modulation layer without second epitaxial growth provides the injected current with a better spreading path in the N-type conductive layer and the P-type conductive layer, which more effectively and uniformly injects the current to the active layer and improves luminous efficiency.
P-contact with more uniform injection and lower optical loss
The current distribution across the p-layer (130) of a semiconductor device is modified by purposely inhibiting current flow through the p-layer (130) in regions (310) adjacent to the guardsheet (150), without reducing the optical reflectivity of any part of the device. This current flow may be inhibited by increasing the resistance of the p-layer that is coupled to the p-contact (140) along the edges and in the corners of contact area. In an example embodiment, the high-resistance region (130) is produced by a shallow dose of hydrogen-ion (H+) implant after the p-contact (140) is created. Similarly, a resistive coating may be applied in select regions between the p-contact and the p-layer.
Light emitting element
Embodiments of the present invention include a light emitting element, a method for manufacturing the light-emitting element according to one embodiment of the present invention, comprises: a first conductive semiconductor layer 112; a GaN-based superlattice layer 124 on the first conductive semiconductor layer 112; an active layer 114 on the GaN-based superlattice layer 124; and a second conductive semiconductor layer 116 on the active layer 114, wherein the GaN-based superlattice layer 124 has a bandgap energy level that varies in a direction from the first conductive semiconductor layer 112 to the active layer 114.
Method of cutting light-emitting device chip wafer by using laser scribing
Methods of cutting a light-emitting device chip wafer by using a laser scribing process. The method includes: preparing a wafer that has a plurality of semiconductor chips on an upper surface of the wafer; attaching a first tape covering the semiconductor chips to the upper surface of the wafer; forming scribing lines to define each of the semiconductor chips on the wafer by irradiating a laser beam onto a lower surface of the wafer; attaching a second tape to the lower surface of the wafer; and breaking the wafer into a plurality of chips by applying a physical force to the wafer along the scribing lines.
Light emitting heterostructure with partially relaxed semiconductor layer
A light emitting heterostructure including a partially relaxed semiconductor layer is provided. The partially relaxed semiconductor layer can be included as a sublayer of a contact semiconductor layer of the light emitting heterostructure. A dislocation blocking structure also can be included adjacent to the partially relaxed semiconductor layer.
Photo detector having sensor element array and photo conversion element, and method for fabricating the same
A photo detector and a method for fabricating the same are provided. The photo detector includes a first substrate and a photo conversion element. The first substrate has a sensor element array for receiving a light with a spectrum in a specific wavelength range. The photo conversion element is disposed on the sensor element array, where the photo conversion element includes a photo conversion material layer and a doped photo conversion material column structure layer. A luminescent spectrum of the doped photo conversion material layer column structure layer is overlapped with the spectrum in a specific wavelength range, and a luminescent spectrum of the photo conversion material layer is non-overlapped with the spectrum in a specific wavelength range.