Conveyor device for printed circuit boards
A conveyor device for printed circuit boards includes a carrier that continuously circulates between conveyor wheels. At least one carrier element supporting placement of the printed circuit board and at least one resilient clamping element clamping the printed circuit board on the carrier element are arranged on the carrier. A switching device moves the clamping element back and forth between an open position of the clamping element, in which the printed circuit board can be loosely placed onto the carrier element, and a spring-loaded closed position of the clamping element, in which the printed circuit board can be pressed onto the carrier element by the clamping element.
Electromagnetic shielding film, flexible printed wiring board with electromagnetic shielding film, electronic device and method for forming the same
A electromagnetic shielding film includes a conductive supporting substrate which includes a cured material of a thermosetting resin including a conductive filler; a metal thin film layer which covers one surface of the conductive supporting substrate; a thermosetting adhesive layer which covers a surface of the metal thin film layer; and a peeling substrate which covers the other surface of the conductive supporting substrate.
Electromagnetic wave shielding film and method for producing a circuit board comprising the shielding film
The present invention discloses an electromagnetic wave shielding film, comprising at least one electromagnetic shielding layer. A printed circuit board comprising the shielding film, is formed by tightly connecting the electromagnetic wave shielding film with the printed circuit board in the direction of thickness, wherein a ground layer is disposed on said printed circuit board. A method for producing the circuit board, including the following steps: (1) hot-pressing and curing the electromagnetic shielding film with the circuit board in the direction of thickness; (2) piercing the adhesive film layer by a rough surface of the electromagnetic shielding layer, to achieve grounding. Or, including the following steps: (1) hot-pressing and curing the electromagnetic shielding film with the circuit board in the direction of thickness; (2) piercing the shielding film by an electrically conductive substance, to achieve grounding. Or, including the following steps: (1) hot-pressing and curing the electromagnetic shielding film with the circuit board in the direction of thickness; (2) forming through holes or blind holes in the circuit board; (3) metallizing the holes, to achieve grounding. The adhesive film layer of the shielding film of the present invention contains no conductive particle, so that the cost and the insertion loss are reduced, and the development demand of high-speed and high-frequency of the electronic products is met.
Power conversion apparatus
Technology leading to a size reduction in a power conversion apparatus comprising a cooling function and technology relating to enhancing productivity and enhancing reliability necessary for commercial production are provided. Series circuits comprising an upper arm and lower arm of an inverter circuit are built in a single semiconductor module 500. The semiconductor module has cooling metal on two sides. An upper arm semiconductor chip and lower arm semiconductor chip are wedged between the cooling metals. The semiconductor module is inserted inside a channel case main unit 214. A DC positive electrode terminal 532, a DC negative electrode terminal 572, and an alternating current terminal 582 of a semiconductor chip are disposed in the semiconductor module. The DC terminals 532 and 572 are electrically connected with a terminal of a capacitor module. The alternating current terminal 582 is electrically connected with a motor generator via an AC connector.
Cooling system for an electronic rack
The present invention discloses a cooling system for an electronic rack, comprising: an electronic rack comprising at least one side wall; at least one electronic chassis comprising a top wall and at least one side wall and disposed inside the electronic rack for housing at least one modular electronics equipment comprising a plurality of electronic components and at least one stationary thermal interface arranged above the plurality of electronic components; a first detachable thermal interface arranged between the top wall of the at least one electronic chassis and the at least one modular electronic equipment; and at least one second detachable thermal interface arranged between the at least one side wall of the electronic rack and the at least one side wall of the at least one electronic chassis.
Rack mount device
A rack mount device includes: a support rail which is provided in a rack and which extends in a front-rear direction of the rack; an electronic device which is housed in the rack along the support rail and which is supported by the support rail; an upper support portion which is provided in the rack and which is arranged at a position higher than the support rail; and a holding member which extends obliquely downward from the upper support portion to a side to which the electronic device is drawn out and which holds the electronic device outside of the rack in a state in which the electronic device has been drawn out from the rack along the support rail.
Modular chassis with floating midplane carrier
A split chassis with a floating midplane carrier is provided. The split chassis is a modular electronic chassis which includes a first chassis section and a midplane carrier floatingly mounted to the first chassis section. The modular electronic chassis further includes a second chassis section mounted to the first chassis section, with the midplane carrier mounted between the first chassis section and the second chassis section.
Server having a latch
Example techniques for using a release latch to access a second tray of a server are disclosed. An example method includes operating a server in a rack. A release latch is engaged to initiate movement of a first tray of the server away from a second tray located behind the first tray. The second tray can then be accessed to remove and replace a storage drive from the second tray while the server remains in operation.
Pluggable power cell for an inverter
In one embodiment, a power cell chamber for a drive system includes moveable and fixed portions. The moveable portion includes a rectifier stage to rectify an input signal received from a secondary winding of a transformer to provide a rectified signal and an inverter stage having a plurality of switching devices to receive a DC signal and output an AC signal. This moveable portion can be slidably adapted within a cabinet of the drive system. In turn, the fixed portion includes a DC link having at least one capacitor to receive the rectified signal and provide the DC signal to the inverter stage.
To provide a semiconductor module capable of shortening of the manufacturing tact time, reducing the manufacturing costs, and improving assembility. A semiconductor module (30) includes substrate (31) made of metal, an insulating layer (32) formed on the substrate (31), a plurality of wiring patterns (33a to 33d) formed on the insulating layer (32), a bare-chip transistor (35) mounted on a wiring pattern (33a) via a solder (34a); and a metal plate connector (36a, 36b) jointing an electrode (S, G) of the bare-chip transistor (35) and a wiring pattern (33b, 33c) via a solder (34b, 34c). The metal plate connector (36a, 36b) has a bridge shape, and has a flat surface and a center of gravity at a middle portion of the component.
Display module and display apparatus having the same
A bottom sash of a display module is provided. The bottom sash includes a bead part formed by depressing some portions of the bottom sash toward a rear side, and a reinforcing panel attached to a front surface of the bottom sash and spaced apart from the bead part.
Isolator for an electronic device
An electronic device assembly includes an electronic device having a mount that includes a mounting opening. The mounting opening is configured to receive mounting hardware therein for mounting the electronic device to a structure. An isolator is coupled to the mount. The isolator includes an elastomeric bushing configured to attenuate at least one of shock or vibration exerted on the electronic device. The isolator is incorporated within the mount such that the elastomeric bushing is received into the mounting opening of the mount.
A display device in the present invention includes a display panel which is provided with a display screen, a I-substrate which is arranged in a predetermined range narrower than the display panel at the back side of the display panel, first flexible printed circuit substrates which extend downward from the upper end of the display panel and are connected to the T-substrate, and second flexible printed circuit substrates which extend upward from the lower end of the display panel and are connected to the T-substrate in order to achieve more reduction in thickness when the display panel and the circuit substrate are arranged together.
Hazard detector battery compartment facilitating ease of user access and device robustness
According to one embodiment, an access door for a hazard detector includes a release member that releasably secures the access door in a closed position over a battery compartment of the hazard detector. The release member allows the access door to be pivoted open and closed relative to the battery compartment and hazard detector. The access door also includes a first hinge member and a second hinge member. The first hinge member enables the access door to pivot along a first pivot path and by a first pivot amount and the second hinge member enables the access door to pivot along a second pivot path and by a second pivot amount. A cumulative total of the first pivot amount and the second pivot amount is substantially greater than either pivot amount alone.
Housing with locking structure
The present invention refers to a housing with a locking structure to connect a first housing part (12) with a second housing part (14). The locking structure comprises a flexible snap member (38) extending from the first housing part over an inner wall portion of the second housing part and is provided with a first engaging portion (44). The inner wall portion of the second housing part is provided with a second engaging portion (60). The first and second engaging portions forming a snap fit connection to be released by lifting said snap member from the inner wall portion. A release tool (70) is arranged on or above the bottom of said second housing part to be slidable towards the snap member. The snap member is further provided with a receiving portion being formed to catch the tip (76) of said release tool in a locked manner when the release tool is pushed into the receiving portion.
Flux, solder composition, and method for manufacturing electronic circuit mounted substrate
Provided is a flux that includes at least one polybutadiene (meth)acrylate compound selected from polybutadiene (meth)acrylate compounds and polybutadiene (meth)acrylate compounds, and a hydrogenated dimer acid.
Method of mounting self-adhesive substrate on electronic device
A method of mounting a self-adhesive substrate on an electronic device comprising steps of: (S01) providing a base for mounting at least one self-adhesive substrate thereon, wherein each self-adhesive substrate includes a copper circuit layer formed thereon, an insulated adhering layer adhered with the copper circuit layer and made of glue with thermal conductive powders, and a release layer attached with the insulated adhering layer; (S02) forming the at least one self-adhesive substrate on the base based on a profile or a circuit configuration of a fixing portion of an accommodating member of an electronic device; (S03) welding a plurality of electronic elements on the copper circuit layer of each self-adhesive substrate; (S04) removing each self-adhesive substrate; (S05) removing the release layer from each self-adhesive substrate to adhere each self-adhesive substrate on the fixing portion of the accommodating member of the electronic device.
Printed circuit board assembly methods
A method includes aligning a first portion of a magnetic core with respect to a first side of a PCB using a first alignment device. The method includes applying a first bonding material to a surface of at least one of the first portion of the magnetic core and a second portion of the magnetic core. The method further includes coupling a second alignment device that retains the second portion of the magnetic core to the first alignment device. When the first alignment device and the second alignment device are coupled, the first portion and the second portion of the magnetic core are retained in a specified assembly position. The specified assembly position includes a specified gap between the first portion and the second portion of the magnetic core. The method also includes curing the first bonding material.
A wiring board includes: an insulating substrate; and a wiring layer including a first metal layer disposed on the insulating substrate and a second metal layer disposed so as to cover a surface of the first metal layer, the surface not being in contact with the insulating substrate, wherein the thickness of the second metal layer is 1/10 of the total thickness of the wiring layer, the wiring layer contains a migration inhibitor, and the mass Y of the migration inhibitor contained in the second metal layer is greater than the mass X of the migration inhibitor contained in the first metal layer.
Circuit board structure and manufacturing method thereof
A circuit board structure includes an inner circuit structure and a first build-up circuit structure. The inner circuit structure includes a core layer having an upper surface and a lower surface, a first patterned circuit layer disposed on the upper surface, a second patterned circuit layer disposed on the lower surface and a conductive through hole connecting the first and the second patterned circuit layers. The first build-up circuit structure at least has a cavity and an inner dielectric layer. The inner dielectric layer has an opening connecting the cavity and exposing a portion of the first patterned circuit layer. A hole diameter of the opening is smaller than a hole diameter of cavity. A height difference is between an inner surface of the inner dielectric layer exposed by the cavity and a top surface of the first patterned circuit layer exposed by the opening.
Transparent conductive film
A transparent conductive film includes a film base, a cured resin layer formed at one side of the film base, and an indium composite oxide layer laminated at a side of the cured resin layer opposite to the film base. The indium composite oxide layer has a thickness of 20 nm to 50 nm. The cured resin layer has a plurality of spherical particles and a binder resin layer which fixes the plurality of spherical particles to the film base. A difference w−d between a mode particle size w and a thickness d of the binder resin layer is greater than zero and less than or equal to 1.2 μm, where w is a mode particle size of the spherical particles and d is a thickness of the binder resin layer.
Area array device connection structures with complimentary warp characteristics
Printed circuit boards (PCBs) can be designed to have dynamic warp characteristics complimentary to those of an attached component. A PCB and an attached component can be designed to dynamically warp, during a thermal excursion, in the same direction and with approximately the same magnitude of warp. Warp characteristics of the PCB and the attached component can be determined by the vertical thickness of conductor and dielectric layers, by the wiring density and number of conductor layers. Warp characteristics can also be at least partially determined by the arrangement/ordering of conductor and dielectric layers, by dimensions of a sash structure surrounding a component outline and by dimensions of a prepreg layer applied to an existing design. Such a prepreg layer can cover a portion or an entirety of one of the PCBs planar surfaces.
Electrical characteristics of package substrates and semiconductor packages including the same
Package substrates are provided. The package substrate may include a power line and a ground line on a first surface of a substrate body; a plurality of signal lines on the first surface between the power line and the ground line; and a lower ground pattern and a lower power pattern positioned on a second surface of the substrate body opposite to the first surface. The lower ground pattern may be disposed to be opposite to the power line and the lower power pattern may be disposed to be opposite to the ground line. Related semiconductor packages are also provided.
Printed circuit board and electronic apparatus
A printed wiring board has thereon an electronic component having a heat radiation pad, and an electrolytic capacitor provided for the electronic component. The printed wiring board further has thereon another electronic component having another heat radiation pad and exhibiting a higher heat value than that of the electronic component, and another electrolytic capacitor provided for the other electronic component. The heat radiation pad of the electronic component, a ground terminal of the electrolytic capacitor, the other heat radiation pad for the other electronic component, and another ground terminal of the other electrolytic capacitor are connected by using a ground conductor. In the ground conductor, a thermal resistance between the other heat radiation pad and other ground terminal is lower than the thermal resistance between the heat radiation pad and the ground terminal.
Electrode substrate and touch panel
Provided is an electrode substrate, including: a substrate; a first pattern unit on the substrate; and a second pattern unit on the substrate.
X-ray cells and other components having gas cells with thermally-induced density gradients
A method includes creating a gas flow in a gas cell and cooling a portion of the gas flow to create a thermally-induced temperature gradient in the gas flow. The method also includes directing at least one laser beam through at least a portion of the gas flow with the thermally-induced temperature gradient. The gas flow can be directed axially along a length of the gas cell or transverse to the length of the gas cell, and the at least one laser beam can be directed axially along the length of the gas cell through at least the portion of the gas flow. The gas flow may represent a first gas flow, and the method may further include creating a second gas flow in the gas cell and cooling a portion of the second gas flow to create a thermally-induced temperature gradient in the second gas flow.
Lighting device and lighting control system having the same
A lighting device is provided, which may include a power converting module, a lighting module, a wireless receiving module and a wired receiving module. The power converting module may be coupled to the lighting module, the wireless receiving module and the wired receiving module. The wireless receiving module may receive a second control signal transmitted from a wireless control module by a wireless transmission technology, and convert the second control signal into a second converted control signal. The wired receiving module may receive a first control signal transmitted from a wired control module, and convert the first control signal into a first converted control signal. The power converting module may drive the lighting module and the wireless receiving module, and may adjust the luminous status of the lighting module according to the first and second converted control signals.
Controllable lighting devices
The present invention provides a lighting device comprising a light output means, a computing device, data communication means, and a casing, wherein the light output means is configured to be controllable by the computing device, the computing device configured to receive and/or transmit instructions to/from the data communication means. The lighting device may be capable of outputting light have various effects, or may emit notifications to a user.
Systems and methods for providing power and data to lighting devices
Systems and methods are provided for lighting systems, including high output lighting systems for various environments. The lighting systems include a lighting controller for driving lighting modules and transmitting a data signal to the lighting modules. The data signal varies between logical states. The lighting controller provides a low loss rectified power signal. The lighting controller further provides data within the power signal by forming a positive polarity rectified power waveform corresponding to data in a first state and a negative polarity rectified waveform signal corresponding to data in a second state using substantially loss-less circuitry.
Light-emitting apparatus and lighting appliance provided with the same
In various embodiments, a light-emitting apparatus is disclosed. In one example, the light-emitting apparatus comprises a substrate, an LED string mounted on the substrate, in which LED string a plurality of LEDs are connected in series, a power supply path connected in series to the LED string, and a plurality of protection elements, each protection element having a first node commonly connected to the power supply path and a second node connected between a pair of the LEDs in the series, wherein the protection elements include capacitors or zener diodes, and an AC impedance of each protection element is smaller than an impedance between the pair of LEDs and a case ground.
Systems for providing tunable white light with high color rendering
The present disclosure provides systems for generating tunable white light. The systems include a plurality of LED strings that generate light with color points that fall within blue, yellow/green, red, and cyan color ranges, with each LED string being driven with a separately controllable drive current in order to tune the generated light output.
Power supply device and lighting device
A power supply device includes LED driver circuits electrically connected to LED light sources, respectively, and a control circuit. Each of the LED light sources includes light-emitting diodes electrically connected in series. The control circuit is configured, when current is prohibited from flowing through a target light source, to perform control of a target driver circuit so that a voltage lower than a threshold voltage at which current starts to flow through the target light source is applied across the target light source. The target light source is a part of the LED light sources. The target driver circuit includes an LED driver circuit, corresponding to the target light source, of the LED driver circuits.
Lighting device, illumination device, and lighting fixture
A lighting device is configured such that only one of a first current control circuit and a charging current control circuit operates in any of operation modes from a first mode to a fourth mode. The lighting device is configured such that the first current control circuit and the charging current control circuit are not included in the same closed circuit.
Low cost LED driver with integral dimming capability
A distributed system for driving strings of series-connected LEDs for backlighting, display and lighting applications that includes multiple intelligent satellite LED driver ICs connected to an interface IC via a serial lighting interface bus. The interface IC translates information obtained from a host microcontroller into instructions for the satellite LED driver ICs pertaining to such parameters as duty factor, current levels, phase delay and fault settings. Fault conditions in the LED driver ICs can be transmitted back to the interface IC. An analog current sense feedback system which also links the LED driver ICs determines the supply voltage for the LED strings.
Method of controlling a lighting arrangement, a lighting controller and a lighting system
A lighting controller and method has light sources which are activated for a respective lighting duration in a repeating non-overlapping sequence. The end of the lighting duration for one light source is detected for triggering the switching on of the next light source in the sequence. This provides non-overlapping control of the light sources and provides an efficient and easy to implement the required controller.
LED lighting apparatus and control circuit thereof
Disclosed are an LED lighting apparatus and a control circuit thereof which controls the brightness of a lamp including LEDs using a dimmer. The LED lighting apparatus and the control circuit use a starting current based on a rectified voltage, in order to supply a holding current to the dimmer in a state where a lamp including LEDs is turned off.
Light engine module, related power supply unit and lighting system
Various embodiments may relate to a Light Engine Module including a plurality of series connected LEDs, a positive power supply line, a common ground line, a communication line, a current set resistor) coupled to the communication line, with its value of conductance being indicative for the current demand of the Light Engine Module, and a variable current generator connected to the communication line. The variable current generator is responsive to at least one measurement signal provided by at least one sensor. Various embodiments may further relate to a Power Supply Unit, and a lighting system including the Power Supply Unit with at least one Light Engine Module.
A display device of the present invention includes a body stand unit; a display displaying unit; and an arm unit, arranged upright from the body stand unit, for supporting the display displaying unit; where the arm unit is arranged on either left or right end side from a center in a horizontal direction of the display displaying unit, and supports the display displaying unit in a cantilever state.
Microwave heating device
A microwave heating device mountable to an electric device, includes: a commercial power supply; an AC/DC converter which outputs a plurality of DC voltages according to power supplied from the commercial power supply; a controller which receives power from the AC/DC converter and totally controls the electric device; a microwave processing device using a compound semiconductor which receives a plurality of outputs of the AC/DC converter and outputs a microwave; and a plurality of loads connected between, of the DC voltages output from the AC/DC converter, a predetermined Vd voltage and ground through a plurality of contacts. The loads form a group of electric components in the electric device. The controller controls power supply to the loads, and controls on/off of the contacts to drive the loads by the Vd voltage regardless of the voltage of the commercial power supply.
A communication device may receive first information from a terminal device in a case where a first communication link is established via a first type of interface between the communication device and the terminal device. The communication device may determine whether a communication via a second type of interface between the communication device and the terminal device is performable, establish a second communication link via the first type of interface between the communication device and the terminal device, and perform a two-way communication of second information with the terminal device by using the second communication link in a case where it is determined that the communication via the second type of interface is performable. The communication device may not perform the two-way communication of the second information with the terminal device in a case where it is determined that the communication is not performable.
Method and apparatus for simultaneously receiving on two carriers and performing discontinuous transmission and reception in dual cell high speed downlink packet access
A method and an apparatus for simultaneously receiving on two carriers and performing discontinuous transmission (DTX) and discontinuous reception (DRX) in dual cell high speed downlink packet access (DC-HSDPA) are disclosed. A wireless transmit/receive unit (WTRU) receives a message for activating DRX for at least one of an anchor carrier and a supplementary carrier and applies the same DRX pattern to the anchor carrier and the supplementary carrier upon reception of the message. The message may be received via a high speed shared control channel (HS-SCCH) order. The WTRU may activate or de-activate the supplementary carrier based on the physical layer signal. Upon activation of the supplementary carrier, the WTRU may apply the same DRX pattern on both the anchor carrier and the supplementary carrier. The WTRU may flush a hybrid automatic repeat request (HARQ) buffer associated with the supplementary carrier upon de-activation of the supplementary carrier.
Apparatus and method for transmitting/receiving data in mobile content network
A method for receiving data in a User Equipment (UE) in a mobile content network is provided. The method includes transmitting a request message, which requests a content, to a first Digital Unit (DU), receiving an Internet Protocol (IP)_ADD message, including information of a second DU which caches the content, from the first DU, updating a Stream Control Transmission Protocol (SCTP) connection according to the information of the second DU included in the IP_ADD message, and receiving data from the second DU using the updated SCTP connection.
Method and apparatus for improved multi subscription operation
A method, apparatus and computer program product are provided in which the network is informed of a connection break with a device having multiple SIMs. In this regard, from the perspective of the device, information regarding a connection break with the device is provided to a network entity associated with a first network, the device communicating with the first network via a first subscription. The method may also cause the connection break to be initiated and causing another connection to be established with the device via a second subscription. From the perspective of the network, a method, apparatus and computer program product are provided in which the network receives information regarding the connection break and, based on the information, performs one or more network optimization actions.
Communication control method, user terminal, processor, storage medium, and base station
A communication control method applied to a mobile communication system including a user terminal capable of storing an MDT measurement log related to a radio environment measured based on an instruction from a network and a connection establishment failure log related to a failure of RRC connection establishment procedure with the network, the method includes the steps of: reserving a dedicated memory area for storing the connection establishment failure log, by the user terminal; and storing the connection establishment failure log in the dedicated memory area reserved in the reserving step, by the user terminal.
Method and apparatus for discovering target in device-to-device direct communication
If a master device in device-to-device direct communication designates an object type of a target to be communicated with, transmits a target discovery request message including the object type of the target to be communicated with to a plurality of neighboring target devices, and receives a target discovery response message from one or more target devices corresponding to the object type of the target to be communicated with among the plurality of target devices, the master device determines one target device among one or more target devices as the target to be communicated with.
Bluetooth pairing system, method, and apparatus
The system provides secure controlled access to multiple Bluetooth devices issued to users. For example an officer may be issued a weapon. To enable monitoring of weapon status, a Bluetooth sensor may be fitted to a holster and the Officer issued with a Bluetooth enabled mobile phone. In order to establish a secure Bluetooth connection between the devices, sensor contains a restored link key and the mobile phone stores a partial link key. The supervisor enters their username and password, and a secret key into the phone which is then used with the partial link key to generate a copy of the link key stored in the first device, so that a secure connection can be established with the first device. The officer enters their username and password into the sensor, and once the secure connection is established it is sent over the secure connection to the mobile phone which then sends both user names and passwords to a verification authority. If the officer is verified and authorized to issue the devices, an authorization message is returned and use of the devices allowed. If the authorization fails, a failure message is returned and the devices are not issued and features may be blocked. The verification authority may be internal or external to the phone. If the authority is external, then the supervisor's user name and password could be omitted.
Radio resource management apparatus of base station in mobile communication system and method of managing the same
A base station of a mobile communication system divides an ultra wideband into a plurality of unit bands, uses a plurality of beam component carriers corresponding to the L3 CP dedicated unit band as a coverage layer by grouping in one cell in the L3 CP dedicated unit band and uses a plurality of beam component carriers corresponding to the UP dedicated unit band in the UP dedicated unit band as a plurality of capacitor layers by grouping in a plurality of cells of a smaller size than that of the grouping.
System and method for reserving a channel for coexistence of U-LTE and Wi-Fi
A shared-channel device is configured to perform a method for reserving a shared channel in a wireless communication system. The method includes, upon a determination to utilize a shared channel for payload data communication starting at a first time, calculating a push-forward duration. The method also includes performing a channel reservation procedure to reserve the shared channel, wherein the channel reservation procedure is started at a second time that is before the first time by the push-forward duration.
Method and system for delay scheduling
The present disclosure discloses a method for delay scheduling, comprising: sending, by a base station, delay scheduling information to a terminal for performing delay scheduling on the terminal; receiving, by the terminal, the delay scheduling information, and stopping monitoring a Physical Downlink Control Channel PDCCH and entering a delay scheduling state according to the received delay scheduling information; and restarting monitoring the PDCCH and terminating the delay scheduling state according to the delay scheduling information. The present disclosure also discloses a delay scheduling system, which enhances an overload processing ability of network. Meanwhile, a mass of radio resources required to access to the network may be saved, and thereby the radio resources can be saved effectively, the load at the network side is relieved.
Adaptively using subframes for radar detection in unlicensed spectrum
Systems and methods for adaptively using subframes for radar detection in unlicensed spectrum are disclosed. The systems and methods include scheduling a first set of subframes in a frame duration for traffic based at least in part on a first configuration for communications in an unlicensed frequency band. Further, the systems and methods include scheduling, based at least in part on the first configuration, a second set of subframes in the frame duration for detection of a primary user of the unlicensed frequency band. Moreover, the systems and methods include adjusting a number of subframes in the first and second set of subframes based on a second configuration for communications, wherein the second configuration for communications is identified based on a type of primary user being detected.
Beamform scheduling based on the directionality of UEs
A method, an apparatus, and a computer program product for beamforming in a wireless communication are provided. The apparatus determines a beamforming direction and a SNR of at least two user equipments (UEs) and determines whether to schedule communication with the at least two UEs during a same time interval via a single communication beam based on the beamforming directions and the SNRs of the at least two UEs. When the communication with the at least two UEs during the same time interval via the single communication beam is scheduled, the apparatus allocates bandwidth resources respectively among the at least two UEs, sizes a width of the single communication beam to encompass the beamforming directions of the at least two UEs, and communicates with one or more of the at least two UEs during the same time interval via a respectively allocated bandwidth resource using the sized single communication beam.
Method for receiving downlink signal, and user device; and method for transmitting downlink signal, and base station
In the present invention, a demodulation reference signal is transmitted using a plurality of settings in which demodulation reference signals occupy different positions in at least a density or time-frequency resource region of the demodulation reference signals. A base station can transmit, to the user device, information indicating a setting related to a downlink signal or a setting related to an uplink signal from among the plurality of settings, and the user device can receive the demodulation reference signal with the downlink signal or transmit the demodulation reference signal With the uplink signal according to the indicated setting.
Method and device for sending and receiving EPDCCH, base station, and user equipment
Provided are a method and a device for sending and receiving an ePDCCH, a base station, and user equipment. The method includes: a base station mapping enhanced resource element groups (eREGs) corresponding to an ePDCCH to different resource elements, wherein each of the eREGs corresponding to the ePDCCH is located in one physical resource block pair; and the base station sending the ePDCCH on the resource elements. The disclosure improves the reliability and resource utilization of ePDCCH transmission.
Override of multi-TTI scheduling messages
The embodiments herein relate to a method in a network node (301) for handling scheduling of a wireless device (305) in a communications network (300). The network node (301) is adapted to communicate wirelessly with the wireless device (305) over a radio channel (310). The network node (301) determines that a data transmission or data reception corresponding to a multi-TTI scheduling message previously transmitted to the wireless device (305) should be at least one of adjusted, interrupted and terminated. The network node (301) transmits, to the wireless device (305), information indicating that the data transmission or data reception corresponding to a previously transmitted multi-Transmission Time Interval, TTI, scheduling message should be at least one of adjusted, interrupted and terminated as determined.
Radio communication system, method, program, base station apparatus, multi-cell/multicast cooperation control apparatus
Disclosed is a radio communication system in which transmission parameters, such as MCS of MBSFN, the number of subframes, and a transmission power of a reserved cell, are adaptively output, based on a unicast traffic volume in a MBSFN area, a number of terminals, and a number of cells of the MBSFN area, so that a system throughput in the MBSFN area is maximized while satisfying an MBSFN quality requirement condition.
Multichannel preferred device notification
Embodiments relate to multichannel preferred device notification. A system includes a memory having computer readable instructions and a processor for executing the computer readable instructions. The computer readable instructions include receiving an electronic notification for a user and determining whether a device group including a plurality of electronic devices is defined for the user. A notification subgroup is identified that includes more than one of the electronic devices located within a predefined overlapping notification range based on determining that the device group is defined for the user. A primary device is identified from the notification subgroup based on a notification priority defined for each of the electronic devices in the notification subgroup. Generation of a notification output corresponding to the electronic notification is triggered on the primary device.
Method and system for providing enhanced location based information for wireless handsets
Methods, devices and systems for generating enhanced location information on or about a mobile device may include hybrid lateration and/or trilateration solutions in which the mobile device determines whether information obtained via a geospatial system of the mobile device is accurate, collects location information from a plurality of mobile devices in response to determining that the information obtained via the geospatial system of the mobile device is not accurate, computes computing more precise location information (including three-dimensional location and position information) based on the location information collected from the plurality of mobile devices, and uses the computed more precise location information to provide an enhanced location based service, such as an emergency location service, a commercial location service, an internal location service and/or a lawful intercept location service.
Method for building database for fingerprinting positioning and fingerprinting positioning method using the built database
A method for building a database for fingerprinting positioning including: generating, by a database building device, raw data by collecting received signal strengths (RSSs) for access points (APs) at each sample point (SP); and generating a cluster table by clustering SPs for each of the APs according to the RSS for the AP, using the generated raw data.
Method and apparatus for managing communication services using multiple subscription agreements
Aspects of the subject disclosure may include, for example, storing subscription utilization information in the memory where the subscription utilization information is indicative of a history of subscription usage by the device and where registration information associated with a group of subscription agreements is stored in the memory, receiving location information from the device processor where the location information indicates a location of the device, and selecting a target subscription agreement from among the group of subscription agreements according to the history of subscription usage and the location information. Other embodiments are disclosed.
Method, base station, and broadcast multicast service center for creating, updating, and releasing synchronization entities
The present invention provides processes of creating, updating, and releasing SYNC entities between eNB and BM-SC, and an eNB and a BM-SC for implementing the processes of creating, updating, and releasing the SYNC entities. According to a solution of the present invention, a method of creating SYNC entities is provided, including: creating, at a BM-SC, a plurality of SYNC entities whose amount is equal to the total amount of services, and associating the created plurality of SYNC entities with the services in a one-to-one correspondence manner; sending a SYNC entity creating instruction to all eNBs within an MBSFN area; creating, at each eNB, a plurality of SYNC entities whose amount is equal to the total amount of services based on the received SYNC entity creating instruction, and associating the created plurality of SYNC entities with the services in a one-to-one correspondence manner.
Synchronization distribution in microwave backhaul networks
In some embodiments, a system comprises a clock, a root node, a radio channel network, and first and second child nodes. The clock may be configured to generate a clock signal. The root node may be configured to generate a first frame including a first payload and a first overhead and generate a second frame including a second payload and a second overhead. The first and second overheads may comprise a synchronization value based on the clock signal. The radio channel network may be in communication with the root node for transmitting the first and second frames. Each first and second child nodes may be configured to perform clock recovery including frequency synchronization using the synchronization value and a respective phase-lock loop.
Updating data of a controller of a primary device of a power substation
Exemplary embodiments for updating a controller of a primary device of a power substation. An actual time is received from a time server via a cell phone communication network with a mobile device and the actual time is sent with the mobile device via a local wireless communication network to the controller.
Control elements in a wireless device and wireless network
A wireless device transmits a power headroom report media access control element (PHR MAC CE). The PHR MAC CE comprises a presence field comprising a plurality of presence bits. The presence field is of a fixed size of one octet when up to seven of the one or more secondary cells are each configured with a cell index having a value between one and seven. The presence field is of a fixed size of four octets when the one or more secondary cells comprise more than seven secondary cells with configured uplinks.
Method of efficiently reporting user equipment transmission power and apparatus thereof
A method and an apparatus for efficiently transmitting or reporting a Power Headroom Report (PHR) of a User Equipment (UE) are provided. The method of transmitting the PHR of the UE in a mobile communication system includes configuring an extended PHR including an indicator corresponding to a variation factor of a maximum transmission power of the UE, and transmitting the extended PHR from the UE to a Base Station (BS). The BS may be notified of a maximum transmission power of the UE and a variation factor corresponding to the maximum transmission power in order to enable efficient scheduling.
Wireless communication system with enhanced power management
A method is provided for a wireless communication device containing at least a main processor for data processing, and a transmitter and a receiver for wireless communication. The method includes providing power to the main processor using a power source via a power switch, performing device initialization of the wireless communication device, and determining whether the wireless communication device recovers from a power-down standby mode, where the power source is disconnected to the main processor such that the main processor does not consume power from the power source. Further, the method includes recovering device states based on information stored on a non-volatile storage when it is determined that the wireless communication device recovers from a power-down standby mode. The method also includes reporting device status including at least battery level of the wireless communication device to an external server based on configuration information on the wireless communication device.
Channel-sensitive power control
A communication receiver which applies signal processing for quantitatively estimating receive signal factors such as communication channel quality, signal characteristics, and overall system received bit error rate (BER) or packet error rate (PER) and which applies a general algorithm for mapping these estimated factors to control receiver performance and minimize power consumption.
Network connection processing method after wakening of terminal in standby, AP and BP
The method is used in the AP, including: the AP suspending a high-speed bus directly when the terminal enters a standby state; the AP resuming the high-speed bus and inquiring a network connection state of the BP when the terminal is wakened; and if connection, the AP continuing to use a wireless data link, otherwise, the BP re-establishing a wireless data link. The method is used in the BP, including: the BP entering a standby state directly when the BP detects that a high-speed bus is suspended; the BP entering a wakening state after detecting that the high-speed bus is resumed, inquiring and feeding back a network connection state of the BP to the AP after receiving an instruction of inquiring the networking state of the AP; re-establishing a wireless data link or maintaining a wireless data link of a current networking after receiving a networking instruction of the AP.
Wireless communication apparatus, vehicular apparatus, and display apparatus
A wireless communication apparatus for a vehicle includes a receiver, a distance calculation section, and a reception frequency changing section. The receiver receives information transmitted from each external communication apparatus located outside of a host vehicle via wireless communication. The distance calculation section calculates a distance between the host vehicle and each outside target to which the external communication apparatus is provided based on position determination information when the information transmitted from the external communication apparatus includes the position determination information. A position of the outside target can be specified based on the position determination information. The reception frequency changing section decreases an information reception frequency of the receiver in accordance with an increase in the distance between the host vehicle and one of the outside targets closest to the host vehicle.
Communication device, power management system having communication device and control method of communication device
Provided is a communication device including an acquisition unit configured to acquire the electrical quantity of a power load, a communication unit configured to wirelessly transmit a packet including the electrical quantity acquired to a master unit that wirelessly transmits a control signal that controls the electrical quantity of a plurality of loads, and a controller configured to switch operation of the communication unit to a second mode in which the packet is wirelessly transmitted without specifying a destination when the electrical quantity equal to or greater than a first reference value is acquired during operation of the communication unit in a first mode in which the packet is wirelessly transmitted to the base station by specifying a destination.
Controlling access to a network
A method for controlling access to a network includes, with a client device, sending a request over a network to a server to determine a public logical address for the client device, determining, using the public logical address, whether the client device is connected to the network through one of a number of approved network service providers, and disconnecting from the network if the client device is not connected to the network through one of the approved network service providers.
Parameters for device to device discovery
A user device may receive one or more parameters from a base station to facilitate device-to-device (D2D) discovery. One of the received parameters is a discovery period parameter, which identifies a discovery period in which discovery resources are available for D2D discovery. Once the user device has received the parameters, the user device may use the parameters to participate in D2D discovery.
Method and apparatus for transmitting backhaul link information
Disclosed are a method and an apparatus for transmitting backhaul link information. A method for acquiring backhaul link state information for a station (STA) may comprise the steps of: an STA transmitting, to an access point (AP), a generic advertisement service (GAS) request frame requesting a backhaul link state information of the AP; the STA receiving, as a response to the GAS request frame, a GAS response frame comprising backhaul link state information, wherein the GAS request frame is a frame transmitted by an STA, before an authentication or an association procedure and after a scanning procedure of the AP, to request availability-related information of a network to be accessed by the STA, and the backhaul link state information can comprise information regarding the load of a backhaul link linking network apparatuses other the AP and the STA.
Systems and methods for sharing scanning information
Systems and methods are disclosed for facilitating a scanning process to obtain information about available WLANs operating within range. Scanning information already obtained by one or more wireless communications devices may be shared with another wireless communications device, thereby reducing the time spent by performing scans by other wireless communications device. As desired, shared scanning information may be used preferentially depending on one or more metrics characterizing the information, such as the age of the scanning information or the relative distance to the sharing wireless communications device.
Method, apparatus and system for transmitting gateway address
This application relates to wireless communication technologies, and more particularly, to a method, a apparatus and a system for transmitting a gateway address, which are used to solve the problem in the prior art that a DeNB is incapable of assisting an MME in selecting an SGW/PGW for a mobile relay node (RN). The method for transmitting a gateway address in an embodiment of this application comprises: a base station determining, when determining an access device to be a mobile RN, a gateway IP address of a mobility anchor serving as a gateway of the mobile RN; and sending the determined gateway IP address to a mobility management entity (MME) corresponding to the mobile RN. In the embodiment of this application, the DeNB is capable of assisting the MME in selecting a suitable mobility anchor for the mobile RN as the SGW/PGW, thereby guaranteeing normal work of the mobile RN.
Selecting a channel based on backhaul bandwidth
In some implementations, a base station may determine a bandwidth associated with a backhaul connecting the base station to a network. The base station may select a band in an unlicensed spectrum based at least partly on a scan of at least a portion of the unlicensed spectrum. The base station may select an operating channel in the band based at least partly on a characteristic of the operating channel and the bandwidth associated with the backhaul. After selecting the operating channel, the base station may, based on one or more conditions, re-scan the band and select a new operating channel based at least partly on a characteristic of the new operating channel.
Radio resource control (RRC) protocol for integrated WLAN/3GPP radio access technologies
An integrated WLAN/WWAN Radio Access Technology (RAT) architecture is described in which signaling used to control the integration of the WLAN/WWAN architecture is performed over the Radio Resource Control (RRC) plane. The integrated architecture may provide a network-controlled framework for performing traffic steering and radio resource management.
Apparatus and method for reserved transmission of non-real-time content in heterogeneous network environment
An apparatus and a method for reserved transmission of non-real-time content in a heterogeneous network environment are disclosed. According to the present disclosure, a method for performing reserved transmission of non-real-time content in a heterogeneous network environment comprises receiving a transmission reservation option from either a mobile terminal user or a server, collecting information on networks accessible by the mobile terminal and data transmission rate on a regular basis, performing scheduling of whether to transmit data over a currently accessible network, based on the received transmission reservation option and the collected information on the accessible networks and the data transmission rate, and repeating data transmission according to the scheduling until transmission of the content is completed.
Method and apparatus for video communication
A method for changing a communication network for video communication is provided. The method includes performing, by a User Equipment (UE), video communication through a mobile communication network; searching for whether there is a Wireless Local Area Network (WLAN) accessible by the UE; displaying, if a WLAN accessible by the UE is found, the accessible WLAN; and when the displayed WLAN is selected by a user, changing a communication network for the video communication to perform the video communication through the selected WLAN.
Idle mode operation in heterogeneous networks
An idle mode UE can RACH to a cell different from the cell paging the UE. The UE can be allocated additional time to respond to all cells in the neighborhood to identify the cell in which to RACH. Interference cancellation can occur at different rates based on whether the UE is in connected mode or idle mode. The time to respond to the page can be a function of a paging cycle. Additionally, a variable bias may promote early handoff to lower power cells and late handoff to high power cells.
Optimizing in-order delivery of data packets during wireless communication handover
Systems and methodologies are described that facilitate processing service data units (SDU) in-order during communication handover in wireless networks. In particular, for mobile devices using re-transmission schemes, SDUs can be processed in-order by indicating to a target base station an index of a last SDU received in-order before handing off communication to the target base station. Additionally, SDUs received subsequent to one or more non-acknowledged SDUs can be forwarded to the target base station. Utilizing this information, the target base station can determine one or more SDUs the mobile device is preparing to re-transmit and can wait for this SDU before processing subsequently received SDUs. Also, a timer can be utilized to end a waiting period for the SDU.
Systems, methods and apparatus configured to manage neighbor cell lists
According to some wireless network standards the size of a neighbor cell list is restricted to a maximum size. The limited size of a neighbor cell list may not reflect the realities of a wireless network deployment, especially for deployments including numerous femto cells clustered in close proximity. Accordingly, as the concentration of macro cells and/or femto cells in an area increases, there lies a challenge to identify and communicate neighbor lists to user devices that reflect the arrangement of a particular portion of the deployment and the needs of the user devices. Various systems, methods and apparatus described herein are configured to provide a user device or a group of user devices a neighbor cell list that includes neighbor cell identifiers chosen from a candidate list.
Wireless internet system and method
A method, system, and apparatus, including a program encoded on computer-readable medium, for transmitting data to a server. A wireless communication connection is established between a first computing device and a second computing device. Data transmitted from the first computing device to the second computing device is received over the wireless communication connection and stored on the second computing device for uploading to a server on an IP based network. The wireless communication connection is disconnected. An IP communication connection is established between the second computing device and the server on the IP based network, and at least a portion of the stored data is transmitted from the second computing device to the server on the IP based network over the IP communication connection after the wireless communication connection between the first computing device and the second computing device is disconnected.
Apparatus and method for improving device handover during a call
Disclosed are methods and apparatus for improving the performance of a user equipment handover during a data call. In one aspect, a source base station determines to handover user equipment (UE) to a target base station. The source base station first determines whether the UE is in a data call prior to the handover. The source base station then modifies one or more of connected mode discontinuous reception (CDRX) and semi-persistent scheduling (SPS) parameters with the UE based on determining to handover the UE and determining that the UE is in the data call.
Charging information accuracy in a telecommunications network
A method for improving charging information accuracy in a telecommunications network with respect to a target user equipment includes: in case of a handover or cell change procedure from the first base transceiver station to the second base transceiver station regarding the target user equipment, transmitting the first non-delivered packet data volume information from the first base transceiver station to the target user equipment and from the target user equipment to the second base transceiver station; and determining, based on the first non-delivered packet data volume information, the second non-delivered packet data volume information.
Configuring WAN backlink bandwidth for a mobile communication platform based on real-time and predetermined factors
A process for managing satellite bandwidth available to a moving vessel includes configuring a satellite to associate the vessel with a group of multiple vessels; configuring the satellite to guarantee a committed information rate (CIR) bandwidth to the vessel and to associate a maximum information rate (MIR) with the vessel, and to combine the CIR of the vessel into a CIR bandwidth pool for the group of vessels, and to combine the MIR of the vessel into a MIR bandwidth pool for the group of vessels, and to provide the vessel with a priority burst rate up to the combined CIR bandwidth of the group of vessels, and to provide the vessel with a burst rate up to the combined MIR bandwidth of the group of vessels, conditional on availability of bandwidth beyond the combined CIR bandwidth of the group of vessels; and re-configuring the satellite to release the guarantee of CIR bandwidth for the vessel upon the vessel gaining access to a terrestrial network connection of higher speed than the satellite connection.
Wireless communication system and method for replacing at least part of an interference signal to mitigate interference
Embodiments of the invention concern a method for mitigating interference between near field communication and an audio stream in a mobile user equipment, wherein the method includes a step of replacing at least part of the interfered audio stream by a sound representative of an interfering near field communication transaction.
Determining a transmission order of data packets in a wireless communication system
In systems and methods of determining a transmission order of packets in a wireless communication network, one method includes determining an efficiency of time frequency frame allocations performed by a network node over a predetermined period of time. The method also includes determining when the efficiency of the time frequency frame allocations is below a threshold. The method further includes rearranging two or more time frequency frames in one or more time transmission intervals when the efficiency of the time frequency frame allocations is determined to be below the threshold.
Service specific subscriber priority
A communication method manages the allocation of Quality of Service using a communication network having an application server providing services and user equipment operated by subscriber The method also includes prioritizing a subscriber according to their subscription details for each service provided. The method also includes allocating Quality of Service for a service provided to user equipment according to the priority of a subscriber operating the respective user equipment.
Method and apparatus for estimating lag in antenna feeder cable of wireless transmission system
A method includes transmitting, at a first time, a first transmission vector signal towards an antenna via a feeder cable connected to the antenna; receiving a first reflected vector signal, the first reflected vector signal being a reflection of the first transmission vector signal reflected from a point in the feeder cable; determining a first transformed transmission vector signal by performing a first vector forward transform on the first transmission vector signal; determining a first transformed reflected vector signal by performing a first vector forward transform on the first reflected vector signal; determining a first complex conjugate vector signal based on the first transmission vector signal and the first reflected vector signal; determining a first computed vector signal by performing a first vector inverse transform on the first complex conjugate vector signal; and determining a first sub-vector by performing a windowing function based on the first computed vector signal.
Method and apparatus for efficiently controlling an MDT in a plurality of PLMNS
The present invention relates to a method and apparatus for efficiently controlling a minimization of drive test (MDT) in a plurality of public land mobile networks (PLMNs). The method for controlling an MDT of a terminal according to one embodiment of the present invention comprises the steps of: performing a tracking-area update; receiving a logged measurement configuration message; determining whether or not the received logged measurement configuration message comprises an MDT PLMN list; and a applying, if the MDT PLMN is comprised, the MDT PLMN list to the MDT. The method and apparatus according to the present invention may efficiently control an MDT in a plurality of PLMNs.
Randomization procedure for assigning interference measurement resources in wireless communication
Methods and apparatus are provided for assigning interference measurement resources. A method includes receiving at least one identifier, which determines, at least in part, at least one interference measurement resource that partially overlaps with another at least one interference measurement resource. The at least one interference measurement resource comprises a number of resource elements out of a set of resource elements. The method also includes measuring interference based at least in part on the at least one interference measurement resource.
Method, device and user equipment for sending indication information, method and device for receiving multimedia broadcast multicast service
Provided are a method, device and UE for sending indication information, and a method and device for receiving an MBMS. The method for sending indication information includes: UE determining that the UE has left one or more MBSFN areas which can carry a predetermined MBMS; the UE sending indication information to a network side. The method for receiving MBMS includes: UE receiving a specified MBMS which is carried in one or more MBSFN area to which a source cell where the UE is currently located belongs; after the UE performs cell reselection and resides in a target cell, in the case that one or more MBSFN areas to which the target cell belongs are different from one or more MBSFN areas to which the source cell belongs, the UE acquiring a condition of one or more MBMSs which are carried in the one or more MBSFN areas to which the target cell belongs; and the UE continuing receiving the specified MBMS in the target cell according to the acquired MBMS condition.
Aperture-fed, stacked-patch antenna assembly
Directive gain antenna elements implemented with an aperture-fed patch array antenna assembly are described. A feed network for the aperture-fed patch array may include offset apertures and may also include meandering feed lines. Scalable aperture shapes and orientations that can be used with antennas operating at any frequency and with dual orthogonal polarizations are also disclosed. Directive gain antenna elements implemented with arrays of orthogonal reflected dipoles are also described with optimal feed networks and parasitic elements to achieve desired directive gain characteristics. Such arrayed dipole antennas feature dual orthogonal polarizations with assembly tabs that lower cost and improve reliability. Backhaul radios that incorporate said antennas are also disclosed.
Optimizing coverage by customizing signal patterns
Systems, methods, and computer-readable media for optimizing coverage for a cell site are provided. Cell sites are typically configured with antennas that emit a standard petal lobe pattern for a sector. The needs of the sector are not taken into account since a standard pattern is emitted for all antennas. The antennas may be adjusted at times to increase signal strength to particular regions but the pattern then returns to the standard petal pattern. Customized patterns may be created in order to optimize coverage for a sector. Sector needs may be taken into consideration such as object interference, geographical information, population data, and the like, in order to crate the customized pattern for a sector. The antenna may then emit the customized pattern for a predetermined length of time as a static pattern for that cell site.
Systems and methods for coordinating interference mitigation techniques and beamforming
Systems and methods are described for coordinating interference mitigation techniques and beamforming. Information about transmissions made by at least one access node neighboring a first access node is obtained. Further, profile data for a wireless device within a transmission range of the first access node is obtained. The systems and methods contemplate determining that transmissions from the first access node to the wireless device will utilize beamforming, based upon the profile data for the wireless device. The first access node is instructed to schedule wireless transmissions to the wireless device utilizing beamforming, based upon the determination to use beamforming.
Performance-based cell aggregation in a mobile network
For controlling aggregation of cells (101, 111, 112, 113, 114, 115, 116, 201, 211, 212, 213, 214, 215, 216) of a mobile network, a network management device (300) determines a traffic load of a cell (101, 111, 112, 113, 114, 115, 116, 201, 211, 212, 213 214, 215, 216) of the mobile network. Further, the network management device (300) determines a rate of handovers between the cell (101, 111, 112, 113, 114, 115, 116, 201, 211, 212, 213, 214, 215, 216) and at least one further cell (101, 111, 112, 113, 114, 115, 116, 201, 211, 212, 213, 214, 215, 216) of the mobile network. On the basis of the traffic load and the rate of handovers, the network management device (300) controls aggregation of the cell (101, 111, 112, 113.114, 115, 116, 201, 211, 212, 213, 214, 215, 216) and the at least one further cell (101, 111, 112, 113, 114, 115, 116, 201, 211, 212, 213, 214, 215, 216) to an aggregated cell.
Medical body area network (MBAN) with automatic in-facility spectrum use enforcement
A medical system comprises: a medical body area network (MB AN) system (10) comprising a plurality of network nodes (12, 14) intercommunicating via short range wireless communication, the MBAN system (10) including a spectrum control sub-module (52) that selects an operating channel or frequency for the short range wireless communication; and a radio frequency identification (RFID) tag (60) disposed with the MBAN system. The spectrum control sub-module selects an operating channel or frequency from a spectrum comprising a combination of (1) a default spectrum and (2) a restricted spectrum authorized for use by the MBAN system conditional upon the MBAN system being within a medical facility as indicated by readings of the RFID tag. The spectrum control sub-module selects an operating channel or frequency from a spectrum comprising only the default spectrum conditional upon the MBAN system not being within the medical facility as indicated by readings of the RFID tag.
Methods and apparatuses for communicating in television white space (TVWS) based on TVWS enablement signal
Certain aspects of the present disclosure relate to techniques for supporting television white space (TVWS) communication. In an aspect of the present disclosure, a low-rate TVWS enabler (Mode II wireless communication device) may provide initial enablement for all Mode I devices (e.g., access points and user terminals), as well as it may transmit a contact verification signal (CVS) on a regular basis to keep the Mode I devices enabled for the TVWS communication.
Methods and system for changing mobile station settings upon hand-off to low-cost internet base station
Methods and systems are provided for changing mobile-station settings upon a mobile station handing off to a base station. In an embodiment, a base station makes a first determination that at least one of several enumerated events has occurred, and in response to making the first determination, carries out one or more of several enumerated steps. Among the several enumerated events are (i) a mobile station handing off to the base station, and (ii) the mobile station initiating a call to a voicemail system maintaining a voicemail account associated with the mobile station; and among the several enumerated steps are (i) disabling a password requirement for the voicemail account, (ii) conveying a voicemail password to the voicemail system on behalf of the mobile station, and (iii) configuring the mobile station to convey the voicemail password to the voicemail system upon the mobile station establishing a call to the voicemail system.
Wireless authentication system and wireless authentication method
A wireless authentication system includes an execution end device and a control end device. When the execution end device and the control end device receive an activation signal, the execution end device generates a time related random code, and transmits the time related random code to the control end device; and the control end device generates a comparison authentication code according to the time related random code, a fixed password and a variable password. When the execution end device determines that the comparison authentication code corresponds to a set of data stored in the execution end device, the execution end device performs a predetermined operation, and the variable password is changed.
Automated credential porting for mobile devices
Devices, systems, and non-transitory computer-readable storage media for updating wireless device credentials, the wireless device comprising: a user interface, memory configured to store one or more credentials for enabling the wireless device to obtain one or more services over a wireless access network, and one or more processors configured to execute one or more machine-executable instructions that, when executed by the one or more processors, cause the one or more processors to obtain an indication of a user request to replace a particular credential with a target credential, detect a network-provisioning state change, determine that the particular credential does not match the target credential, initiate a programming session with a network element over a wireless access network, obtain an updated credential from the network element, and assist in storing the updated credential in memory.
System and method for privacy-enabled mobile locator services with dynamic encounter horizon
A method and system for managing awareness information relating to a mobile device's visibility with respect to other buddy devices, the system comprising; the mobile device, a mobile application listing one or more buddies, an application listener which tracks the one or more buddies zoom operations and radar zoom factors, and a server, the server comprising an encounter manager, an approach manager and a notification marshalling system.
Method of device-assisted enhanced SIM replacement
A method of supporting enhanced SIM replacement procedure is proposed. A UE detects that a first identification module running a first application is inserted. The first identification module belongs to a PLMN, and an enhanced service is provided by an operator of the PLMN via a second application. The UE sends a notification to the operator for obtaining a second identification module. The UE detects that the second identification module running the second application is inserted. The UE sends a second notification to the operator for activating the second identification module such that the UE is able to use the enhanced service provided by the operator. The device-assisted solution for SIM replacement complies with existing security/authentication model, has no standard charge, and complies with existing SIM replacement model and offers a simpler and more automatic procedure.
Identity suspension method for a mobile device
This inventions relates to an identity suspension method and system for a mobile device designed for operation with a subscriber identification module (SIM) card, wherein the mobile device further includes a virtual SIM device. The virtual SIM device acts as a bridge between a remotely located SIM card, and the mobile device. The virtual SIM device can detect when the mobile device requests an identity or when the cellular services provider is attempting to authenticate the identity associated with the mobile device. Should the virtual SIM device sense that the process may not be completed for any reason, the virtual SIM device returns a transient error to the mobile device and effectively present a new “parking” identity to the mobile device using procedures defined in SIM toolkit.
Method and apparatus for processing unstructured supplementary service data service
The present invention discloses a method for processing USSD service. In this method, when an application server determines that a mobile terminal on a VoLTE network supports USSD operations over IMS, the application server sends an invite message to the mobile terminal, where the invite message includes an identifier of a USSD service; receives an invite response from the mobile terminal, where the invite response carries reply information entered by a subscriber and the identifier of the USSD service; generates, according to the reply information, a message that requests to execute the USSD service, where the message that requests to execute the USSD service carries the identifier of the USSD service; and sends, to a subscriber data server, the message that requests to execute the USSD service, so that the subscriber data server processes the USSD service.
Adaptive silencing mechanism for device-to-device (D2D) discovery
Novel adaptive silencing schemes for device-to-device (D2D) discovery based on loading conditions in a discovery zone are disclosed herein. These adaptive silencing schemes can be used to mitigate interference and data collisions in networks where D2D connections can be formed. In some embodiments, a silencing factor is used to probabilistically determine whether a user equipment (UE) will transmit one or more D2D discovery signals in the discovery zone. Loading conditions in a current discovery zone can be estimated using several different approaches and metrics described herein. The silencing factor can be increased or decreased for a subsequent discovery zone based on the values of one or more of the metrics described herein for the current discovery zone.
Systems and methods for the detection of transmission facilities
A method of detecting a transmitting device within an obstruction rich environment is disclosed. The method may involve detecting the transmitting device with a wireless transmission detection facility; communicating signal information relating to the detected transmitting device from the wireless transmission detection facility to a central unit; determining the location of the transmitting device; displaying information of the detection and location of the transmitting device through a user interface; and providing an action facility for causing actions related to the detected transmitting device.
Security control method and device in a mobile communication system supporting emergency calls, and a system therefor
The present invention relates to a security control method and device for emergency calls in a mobile communication system, and the security control method in a mobile communication system supporting emergency calls according to an embodiment of the present invention comprises: a step in which a terminal transmits a message containing terminal security capabilities to a source network during handover in an emergency call; a step in which a mobility manager of the source network transmits, to a mobility manager of a target network, the message containing terminal security capabilities; a step in which the mobility manager of the target network transmits, to a base station of the target network, a hand-over request message containing the terminal security capabilities; and a step in which, after the hand-over preparation procedure has been completed, a base station of the source network transmits, to the terminal, a hand-over command message containing the terminal security capabilities.
Communication system and apparatus for providing supplementary service in femto cell
When a femto cell base station used for a communication system provided with a function of providing a predetermined supplementary service receives first information indicating supplementary service control from a radio terminal, the femto cell base station converts the received information to a SIP (Session Initiation Protocol) message including the first information and transmits the SIP message to a higher apparatus in the communication system.
Smartphone conferencing system and method of operating same
This invention relates to a smartphone conferencing system (1), a dial-out and permissions rating engine (DPRE) (17) for use in the system, and a method of handling a smartphone conference call between a smartphone user and a plurality of conference call participants (5). The system and method both incorporate a DPRE (17) which analyzes the conference call establishment requests and determines if a request is valid or if a request is invalid based on call dial-out history. The system and method will obviate many of the delays in establishing a smartphone conference call and will prevent fraud should the users lose their smartphone (3).
Method and apparatus for positioning a mobile terminal in a radio network
A method for positioning a mobile terminal in a radio network including a plurality of base stations, comprising: transmitting a signal from a base station for receipt in the mobile terminal along a line of sight of a radio beam; receiving time measurement data from the mobile terminal, obtained based on receipt in the mobile terminal of the transmitted signal; calculating a distance value (DLOS) for the distance from the base station to the mobile terminal based on the time measurement data; and calculating a vertical position (Dv) of the mobile terminal, based on the distance value and an elevation angle (θ) of the line of sight of the radio beam from one or more of the plurality of base stations.
Devices and methods for geo fencing
Generally discussed herein are systems and apparatuses for determining a location of a device. Also discussed herein are methods of using the systems and apparatuses. According to an example a mobile device may include processing circuitry including a Measurement Engine (ME) and a Position Engine (PE), wherein the PE is configured to provide a location estimate of the device using a location function, generate an estimate location function that approximates the location function to within a specified error, and provide the estimate location function to the ME, and wherein the ME is configured to receive a geo fence boundary defining a boundary of a geographical region, determine a plurality of pseudo ranges between the device and a plurality of navigation satellites, and determine, using the estimate location function and the plurality of pseudo ranges, whether the device is within the geographical region defined by the geo fence boundary.
Wireless device, wireless base station, and control method for a failure in a wireless network
A wireless device including: an antenna wirelessly coupled to a terminal, a network interface coupled to a baseband unit (BBU) that perform baseband processing, and a processor configured to: convert a wireless signal received from the terminal into a baseband signal to be transmitted to the BBU, convert a baseband signal received from the BBU into a wireless signal to be transmitted to the terminal, and determine, when failure occurs in the wireless device, whether the wireless device takes a measure against the failure or not based on a first index indicating a level of the failure and a second index relating to the number of users that are affected by the failure.
Provision of information regarding a mobile station
A method of providing information regarding a mobile station adapted for communication via a communication system is provided. In the method an area event notification request is received at a location service entity provided in association with the communication system, the area event notification request containing information associated with the identity of the mobile station and an area of interest. Monitoring for an event indicative of a change in the presence status of the mobile station relative to said area of interest is then activated. A notification is signalled in response to detection of such event.
Localization using a wireless tag supporting multiple states
A capability for controlling or facilitating the use of a wireless tag to communicate location tracking information is presented. The capability for controlling or facilitating use of a wireless tag to communicate location tracking information utilizes a wireless tag supporting multiple states in order to control communication of location tracking information. The wireless tag supporting multiple states in order to control communication of location tracking information may be configured to support or facilitate tag-controlled state transitions, gateway-controlled state transitions, infrastructure-controlled state transitions, or the like, as well as various combinations thereof. The multiple states of the wireless tag may specify use of different sets of wireless gateways for communication of location tracking information, use of different protocols for communication of location tracking information, use of different air interfaces for communication of location tracking information, use of different performance parameters for communication of location tracking information, or the like.
Service processing method and apparatus based on location information
The embodiments of the present invention disclose a service processing method and apparatus based on location information. The method comprises: acquiring, by an application server, a positioning signal sent by a positioning terminal; determining, by the application server, location information about the positioning terminal according to the positioning signal; and sending, by the application server, service processing information to an application client and/or a positioning terminal according to a service processing rule and based on the location information about the positioning terminal. The present invention achieves the technical effect of the application server sending adaptive service processing information to the application client and/or the positioning terminal according to different service processing rules, optimizes the existing location-based service technology, and meets the growing demand of people for individual and customized location-based services.
Methods and mobile devices to implement traveler interactions and activity to channelize customized data
Various embodiments relate generally to electrical and electronic hardware, computer software, wired and wireless network communications, and wearable computing devices for identifying activities and/or destinations of relative importance. More specifically, a system, a device and a method are provided to determine interactions at a mobile computing device predict activities based on one or more types of interactions. Examples of activities include preferential activities available at a geographic region association with lodging In one or more embodiments, a method can include receiving data representing an interaction with a user interface, generating data summarizing the interaction to include an interaction type, and determining data representing a prioritized value indicative of a degree of the interaction. The method also may include predicting participation in an activity as a function of the prioritized value, and generating customized advisory data based on prioritized values of one or more interaction types.
Method and apparatus for conveying point of interest data with minimum data exchange
An approach is provided for determining a first location-based record associated with at least one device (501). Next, the point of interest platform causes, at least in part, a specification of a second location-based record relative to the first location-based record (503). Subsequently, the point of interest platform causes, at least in part, a transmission of the second location-based record to the at least one device (505), wherein transmission of the second location-based record to the at least one device is based, at least in part, on the one or more codes.
Data routing for positioning
A system for implementing a positioning functionality. An apparatus (e.g. a directional transceiver) (706) may receive a signal (704) for positioning and measure characteristics associated with the received signal (704). If the directional transceiver (706) then determines that the received signal (704) comprises calculator identifier information, the apparatus may forward the measured characteristics based on the calculator identifier information. Otherwise, the directional transceiver (706) may forward the measured characteristics to a buffer (712). From the perspective of the apparatus (700) transmitting the signal (704) for positioning, a determination may be made as to whether calculator identifier information is known. If determined to be known, the transmitting apparatus (700) may include the calculator identifier information in the signal (704) for positioning. Otherwise, the other apparatus may transmit the signal (704) for positioning without any calculator identifier information.
Seeding an estimator when receiving assistance data on a slow link
Systems, apparatus and methods for determining a location of a mobile device are presented. Often a mobile device requests assistance data from a location server. If the mobile device expects a significant delayed response in receiving the assistance data, the mobile device may determine a seed location or rough location estimate from a server. The mobile device may also request a map to display and/or a data structure for its estimator. The mobile device may preload the estimator with the rough location estimate and/or the data structure. After preloading, the estimator determines a location of the mobile device. Also, the mobile device may show the map to a user via a display.
Inter-device bearing estimation based on beam forming and motion data
Disclosed herein are techniques and systems for inter-device bearing estimation. Particularly, sensor fusion techniques are disclosed that combine motion data of a local computing device with beamforming data of the local computing device to determine a line-of-site path between the local computing device and a remote computing device. A motion sensor(s) of a local computing device may generate motion data from movement of the local computing device. The local computing device may further determine a direction, relative to the local computing device, of a beampattern in which an antenna(s) of the local computing device radiates energy, the beampattern direction being along a communication path between the local computing device and a remote computing device. The local device may then determine, based at least in part on the motion data and the direction of the beampattern, whether the communication path corresponds to a line-of-sight path between the local and remote devices.
Method and technical equipment for short range data transmission
A method, an apparatus and a computer program product are used for device filtering. A packet is received from a device, after which it is determined whether the device is allowed to be responded to, wherein the determination comprises at least one of the following: determining a received signal strength indication from the packet; or determining a time from previous connection of the device; or determining the data in a payload of the packet.
Facilitating radio frequency communications among environmental control system components
A boiler control device may include a housing and a wireless communication module for receiving coded control signals from the thermostat device. The boiler control device may also include boiler control circuitry for selectively controlling activation of the boiler-based heating system according to the coded control signals from the thermostat device. An onboard antenna disposed within the housing and communicatively coupled to the wireless communication module, and an interface configured to receive an auxiliary antenna. The auxiliary antenna may be disposed outside of the housing. Detection circuitry may detect times when the auxiliary antenna is communicatively coupled to the interface. Switching circuitry may interrupt communication between the onboard antenna and the wireless communication module during the times when the auxiliary antenna is communicatively coupled to the interface.
Cloud based mobile device security and policy enforcement
Cloud based mobile device security and policy systems and methods use the “cloud” to pervasively enforce security and policy on mobile devices. The cloud based mobile device security and policy systems and methods provide uniformity in securing mobile devices for small to large organizations. The cloud based mobile device security and policy systems and methods may enforce one or more policies for users wherever and whenever the users are connected across a plurality of different devices including mobile devices. This solution ensures protection across different types, brands, operating systems, etc. for smartphones, tablets, netbooks, mobile computers, and the like.
Network tools for analysis, design, testing, and production of services
Various embodiments are disclosed for a services policy communication system and method. In some embodiments, a network device collects service usage measurements for a communications device use of a service on a network; and compares the service usage measurements to a device assisted implementation of a service policy to verify the device assisted implementation of the service policy.
Method for playing back the sound of a digital audio signal
A method for playing back the sound of a digital audio signal comprising an oversampling step consisting of producing, from a signal sampled at a frequency F, a signal sampled at a frequency N×F, where N corresponds to an integer greater than 1, then of applying convolution processing to a first digital file sampled at a frequency N×F corresponding to the acquisition of the soundscape of a reference sound space, a second digital file sampled at a frequency N×F corresponding to the acquisition of the noise footprint of a piece of reference playback equipment, a third digital file sampled at a frequency N×F corresponding to the acquisition of the noise footprint of an equalizer and a fourth file corresponding to said oversampled audio file, the resulting digital packets then undergoing digital conversion processing at a sampling frequency F/M corresponding to the working frequency of the listening equipment.
Method and apparatus for controlling multimedia execution on a device
Embodiments are disclosed for controlling execution of multimedia data. One or more information blocks of multimedia data including audio sounds are determined. Also, one or more frequency differences in the audio sounds for each of the one or more information blocks of the audio data is determined. The control of the execution of the multimedia data is based, at least in part on, a comparison of the one or more frequency differences to one or more prestored frequency values.
Method and system for monitoring speaker temperature for speaker protection
A method of monitoring speaker temperature for speaker protection starts by generating a low level inaudible noise signal and injecting the low level inaudible noise signal in an audio signal. The voice coil resistance estimate that estimates a resistance of a voice coil of a speaker is then computed. The voice coil resistance estimate changes while the speaker is being driven by the audio signal that includes the low level inaudible noise signal. The temperature estimate is then computed based on the voice coil resistance estimate. The level of the audio signal may be adjusted based on the temperature estimate. Other embodiments are also described.
System and method for testing and certification of media devices for use within a connected media environment
In accordance with an embodiment, described herein is a system and method for testing and certification of media devices for use within a connected media environment. A testing device includes an input mechanism, for example a microphone, and a plurality of test files. Each test file can be used to produce a characteristic signal, for example an audio track having a particular frequency. The testing device emulates a gateway between a media device under test, such as an audio speaker, and a media server. Test scripts can be used to mimic commands to play or otherwise access media content at the device under test. Playback of a particular test file can be detected and recognized according to the characteristic signal produced by that test file. Resultant test information can be used to evaluate the performance and/or certify operation of the media device within the connected media environment.
A sensor system is provided. The sensor system includes a control device and a sensor device. The control device has an audio combo jack and selectively provides an audio signal to the audio combo jack. The sensor device is connected with the audio combo jack. The sensor device includes a transformer, a rectifier, a power supply circuit, and a sensor. The transformer receives the audio signal through the audio combo jack and amplifies the audio signal to generate an amplified audio signal. The rectifier, coupled to the transformer, receives the amplified audio signal and rectifies the amplified audio signal to generate a rectified voltage signal. The power supply circuit is controlled by the rectified voltage signal to provide a supply voltage. The sensor is powered by the supply voltage to perform a sensing operation. An output signal which carries information related the sensing operation is generated.
Smart hearing aid
A method for controlling a hearing aid based on an adjustable policy including receiving an input signal; receiving an indication signal from a user identifying the input signal; receiving an adjustment to the hearing aid with the indication signal; and utilizing a processor to store the input signal in memory with the adjustment to the hearing aid as an adjustable policy corresponding to the input signal.
Smart hearing aid
A system or computer usable program product for controlling a hearing aid based on an adjustable policy including receiving an input signal; receiving an indication signal from a user identifying the input signal; receiving an adjustment to the hearing aid with the indication signal; and utilizing a processor to store the input signal in memory with the adjustment to the hearing aid as an adjustable policy corresponding to the input signal.
Speaker apparatus and electronic device having the same
A speaker apparatus and an electronic device having the same are provided. The speaker apparatus includes a hollow shape frame, a magnet disposed in an internal part of the hollow shape frame, a voice coil installed in proximity to the magnet, a diaphragm including a diaphragm edge that vibrates by an electric current applied to the voice coil, and a diaphragm edge compression part extended upward along the diaphragm edge. The diaphragm edge compression part contacts an inner surface of a housing of the electronic device.
Battery-powered stereo speaker assembly having power connection for charging a handheld device
The present invention provides a portable and compact battery-powered stereo speaker assembly that incorporates a DC to DC converter, which enables power from the internal stereo speaker assembly battery to charge an interconnected hand-held device, such as a smartphone, through a USB connection, thereby extending the time that the device can be used untethered from the AC power grid. A DC to DC converter enables the charging function can be implemented even if the speaker assembly is not connected to the AC power grid, and even if the battery of the stereo speaker assembly is not fully charged. The stereo speaker assembly also incorporates Bluetooth connectivity, a proprietary open wireless technology standard, developed by Ericsson in 1994, employing frequency-hopping spread spectrum radio transmissions in the ISM band from 2400-2480 MHz.(134)
Device and method for driving a sound system and sound system
A driving device for a sound system by loudspeaker signals, wherein the sound system has a wave field synthesis loudspeaker array and one or several supply loudspeakers arranged separate from the wave field synthesis array includes an audio input for receiving at least one audio signal from at least one sound source, a position input for receiving information on a position of the sound source, a wave field synthesis unit for calculating loudspeaker signals for the loudspeakers of the wave field synthesis loudspeaker array, and a provider for providing the loudspeaker signal for the one or the several supply loudspeakers. The driving device enables a sound system by means of which sound localization becomes possible for the audience and at the same time pleasant levels can be achieved also in the first rows of the audience.
Automatic audio system equalizing
An automated process for equalizing an audio system and an apparatus for implementing the process. An audio system includes a microphone unit, for receiving the sound waves radiated from a plurality of speakers, acoustic measuring circuitry, for calculating frequency response measurements; a memory, for storing characteristic data of the loudspeaker units and further for storing the frequency response measurements; and equalization calculation circuitry, for calculating an equalization pattern responsive to the digital data and responsive to the characteristic data of the plurality of loudspeaker units. Also described is an automated equalizing system including a acoustic measuring circuitry including a microphone for measuring frequency response at a plurality of locations; a memory, for storing the frequency responses at the plurality of locations; and equalization calculation circuitry, for calculating, from the frequency responses, an optimized equalization pattern.
Method and device for automatically identifying microphone pin and ground pin of audio interface and electronic signature token
A method and a device for automatically identifying a microphone pin and a ground pin of an audio interface and an electronic signature token are provided. The method comprises: not implementing an identification operation on the first pin and the second pin of the audio interface when an absolute value of a voltage difference between the first pin and the second pin is less than a first threshold; and determining a type of each of the first pin and the second pin according to a sign of the voltage difference between the first pin and the second pin when the absolute value of the voltage difference is greater than or equal to a second threshold, in which the second threshold is greater than or equal to the first threshold.
User terminal apparatus, electronic device, and method for controlling the same
A user terminal apparatus connected to an electronic device, and a method thereof, are provided. The apparatus includes a communicator that performs communication with the electronic device, an audio processor that processes an audio source to be transmitted to the electronic device, and a controller that adjusts a sound level of the audio source based on a reference volume unit of the electronic device, and controls the adjusted audio source to be transmitted to the electronic device in a streaming method.
Narrow-angle directional microphone
An acoustic tube attaching unit that attaches an acoustic tube to a side of a main body case where a microphone unit is mounted. The acoustic tube attaching unit includes first and second elastic members lying between a fixing member and a washer, and bolts that tight the fixing member and the washer in an axial direction. A peripheral edge surface of the first elastic member is formed in a linear manner, and a peripheral edge surface of the second elastic member is formed in a recessed surface manner, so that the peripheral edge surface of the first elastic member protrudes in an outer peripheral direction by elastic deformation by the tightening of the bolts. The acoustic tube is attached to the main body case side by fixing action to an inner wall of the acoustic tube by the protrusion of the first elastic member in the outer peripheral direction.
Circuitry detects properties of an accessory removably connected thereto via a multi-pole connector. The circuitry has first, second and third circuit terminals for coupling to respective first, second, and third poles of said connector, and has an output for providing evaluation values from which properties of the accessory may be derived. In the circuitry, first current sourcing circuitry is coupled to said first circuit terminal for providing a first current. A switch network comprises first, second, third and fourth switch network terminals, said first switch network terminal coupled to a reference potential, said second switch network terminal coupled to said second circuit terminal, and said third switch network terminal coupled to said third circuit terminal. Comparator circuitry provides a comparison signal, its first input terminal being coupled to said first circuit terminal. Second current sourcing circuitry having a monitor node coupled to said second comparator input terminal and an output node coupled to said fourth switch network terminal provides a second current to said switch network. At least one of said first current sourcing circuitry and said second current-sourcing circuitry is responsive to a digital control word for varying said first or said second current. Control logic is provided for operatively controlling the state of the interconnections of said switch network, for adjusting said digital control word in response to said comparison signal until a voltage at said first circuit terminal is equal to a voltage at said monitor node, and for supplying said adjusted digital control word associated with the state of the interconnections to said output as an evaluation value.
Method and device for personalized hearing
An electronic audio device for use with at least one earpiece or a pair of earpieces, or a pair of earpieces in a headphone, each earpiece having a microphone and a speaker located therein, including circuitry operatively coupled to the microphone and speaker, and a processor operatively coupled to evaluate a seal quality of the earpiece to a user's ear based on seal quality measurements made while driving or exciting a signal into the speaker located in the earpiece and where the processor is configure to generate a visual or audio message identifying whether at least one earpiece is properly sealed based on the seal quality measurements.
Earphones with left/right magnetic asymmetry
A first earphone of an earphone system includes a first magnet assembly and a first voice coil. A second earphone of the earphone system includes a second magnet assembly and a second voice coil. The second magnet assembly has a magnetic polarity that is opposite to the first magnet assembly. The current direction in the second voice coil is reversed relative to the current direction in the first voice coil. The first earphone and the second earphone attract each other because of the opposite magnetic polarity between the first magnet assembly and the second magnet assembly.
Headphone responsive to optical signaling
An optical sensor may be integrated into headphones and feedback from the sensor used to adjust an audio output from the headphones. For example, an emergency vehicle traffic preemption signal may be detected by the optical sensor. Optical signals may be processed in a pattern discriminator, which may be integrated with an audio controller integrated circuit (IC). When the signal is detected, the playback of music through the headphones may be muted and/or a noise cancellation function turned off. The optical sensor may be integrated in a music player, a smart phone, a tablet, a cord-mounted module, or the earpieces of the headphones.
Bone-conduction anvil and diaphragm
Disclosed herein are methods and apparatuses for the transmission of audio information from a bone-conduction headset to a user. The bone-conduction headset may be mounted on a glasses-style support structure. The bone-conduction transducer may be mounted near where the glasses-style support structure approach a wearer's ears. In one embodiment, an apparatus has a bone-conduction transducer with a diaphragm configured to vibrate based on a magnetic field. The magnetic field being based off an applied electric field. The apparatus may also have an anvil coupled to the diaphragm. The anvil may be configured to conduct the vibration from the bone-conduction transducer. Additionally, the anvil may be coupled to a metallic component. The metallic component may be configured to couple to a magnetic field created by the bone-conduction transducer.
Use of an earpiece acoustic opening as a microphone port for beamforming applications
A mobile multi-function device that includes a speaker, two or more microphones, and a beamformer processor is described. The beamformer processor uses the microphones to perform beamforming operations. One of the microphones shares a receiver acoustic opening with the speaker while the other microphone uses a separate acoustic opening. The receiver acoustic opening may be an earpiece opening that is held to the ear of a user while conducting a phone call with the device and provides acoustic input and output paths for the microphone and the speaker, respectively.
Devices of the invention are portable speakers that provide stereophonic, surround sound. According to certain aspects, a speaker system includes a first speaker portion, a second speaker portion and a cable handle. The first speaker portion includes a first end and a second end, and the second speaker portion includes a third end and a fourth end. The cable handle couples the first end of the first speaker portion and a third end of the second speaker portion. The second end of the first speaker portion is configured to releasably couple to the fourth end of the second speaker portion, thereby forming a looped unit, when coupled, with the first speaker portion, the second speaker portion, and the cable handle.
Method and system for zapping advertisement service
Disclosed herein are a method and a system for a zapping advertisement service, and more particularly, a method and a system for providing various kinds of advertisement services targeted to a content recipient to an advertiser wanting a zapping advertisement and effectively exposing the zapping advertisement to the content recipient. Accordingly, an embodiment of the present invention provides additional information corresponding to the zapping advertisement according to a user request when the zapping advertisement is provided for zapping time generated at the time of switching a channel and maximizing an advertisement effect for the zapping time by repeatedly providing corresponding zapping advertisements, or continuously providing the zapping advertisement associated therewith at the time of switching the screen.
Broadcast interactive television system
A system that incorporates teachings of the present disclosure may include, for example, a system for delivering broadcast channels by way of edge routers using multicast virtual private networks, sharing a same multicast state for the broadcast channels and sharing a same multicast delivery tree for the broadcast channels. Other embodiments are disclosed.
Display apparatus for arranging content list and controlling method thereof
A controlling method for arranging a content list of a display apparatus is provided. The method includes storing at least one content selected by a user, displaying a content list including the at least one content, and in response to a location fixation command related to one of the at least one content included in the content list being input, fixing a location of the selected at least one content on the content list. Accordingly, the content list can be arranged efficiently.
Method for playing contents
A method for playing contents is provided. In the method, information corresponding, respectively, to a plurality of contents may be displayed, and a drag and drop operation related to first contents information and second contents information among the displayed contents information may be received. Thereafter, the first contents and the second contents may be played.
Method and system for detecting and presenting a new event in a video feed
The application is directed to a video monitoring user interface that includes a first region for displaying a live or recorded video feed from a video camera and a second region for displaying an event timeline. The event timeline includes equally spaced time indicators each indicating a specific time, and a moveable current video feed indicator indicating the temporal position of the video feed displayed in the first region. The temporal position includes a past time corresponding to the previously recorded video feed and a current time corresponding to the live video feed. The event timeline is displayed with event indicators corresponding to different types of events previously detected during a period of time associated with the event timeline. When a new event is detected, a new event indicator is displayed on the event timeline with the graphic display characteristic corresponding to the event type of the new event.
IP camera, communication method and communication system
An IP camera, a communication method and a communication system are provided. The IP camera includes an image capturing unit, a video processing unit and a connection processing unit. The image capturing unit captures a plurality of consecutive images. The video processing unit is coupled to the image capturing unit, and generates a first video stream and a second video stream according to the images. The connection processing unit is coupled to the video processing unit, processes the first video stream into a first packet stream, and processes the second video stream into a second packet stream. The connection processing unit transmits the first packet stream to a local area wireless network unit through a first wireless link, and the connection processing unit transmits the second packet stream to an external electronic device through a second wireless link.
System and methods for automatically obtaining cost-efficient access to a media content collection
Systems and methods for automatically obtaining cost-efficient access to a media content collection are provided. A user selection of a media content collection, which consists of a number of media assets, is received. A first price is determined for receiving access to the entire media content collection using a single transaction. For each media asset of the media content collection a set of providers of the media asset are identified, and the lowest price for receiving access to each media asset is determined. The lowest price for receiving access to each media asset of the media content collection is accumulated to determine a second price for receiving access to the media content collection using multiple transactions. The first and the second price are compared, and access to the media content collection is received based on this comparison.
Provision of supplemental processing information
Supplemental processing information (52, 54) defining post-decoding instructions for processing decoded media content is co-organized in a file (1) together with a pseudo-identifier of a media codec employed for encoding the media content. The co-organization trigger abortion of decoding of the media content by a legacy media terminal (210) that does not recognize the pseudo-identifier but enables decoding of the media content by a media terminal (200) that recognizes the pseudo-identifier to thereby enable post-decoding processing of the decoded media content using the supplemental processing information (52, 54). The co-organization thereby prevents legacy media terminals (210) that cannot use the supplemental processing information from decoding the media content and rendering the media content in a media presentation.
Application execution on a server for a television device
In at least one example embodiment, a system may include a television device configured to: transmit a request to execute an application; and a server configured to: execute the application that uses at least one function of the television device to generate an image; transmit the generated image to the television device; and transmit a request to execute the at least one function of the television device, and wherein the television device is further configured to: execute the requested function of the television device and transmit a result of the execution to the server.
Proximity dependent content delivery
To be accessed on different media players, requested content must be delivered in a format that is supported by the requesting device. A dynamic content packager for encrypting and packaging requested content for different requesting devices at the time of consumption is disclosed.
Coding and deriving quantization parameters
QP control information valid for a block of samples is parsed. A QP to use for the block of samples is derived according to a first QP derivation process independent on the QP control information if residual data of the block of samples is not color transformed and according to a second QP derivation process dependent on the QP control information if the residual data of the block of samples is color transformed. The embodiments thereby decouple QP parameters for blocks of samples that are coded with color transform and those that are coded without color transform. This decoupling achieves better flexibility during encoding and results in better visual quality.
Method for fast 3D video coding for HEVC
The present disclosure relates to the technical field of video coding. Implementations herein provide methods for fast 3D video coding for high efficiency video coding HEVC. The methods speed up the view synthesis process during the rate distortion optimization for depth coding based on texture flatness. The implementations include extracting coding information from textures, analyzing luminance regularity among pixels from flat texture regions based on statistical method, judging the flat texture regions using the luminance regularity for depth maps and terminating the flat texture block's view synthesis process when processing rate distortion optimization. Compared to original pixel-by-pixel rendering methods, the implementations reduce coding time without causing significant performance loss.
Image decoding apparatus adaptively determining a scan pattern according to an intra prediction mode
Provided is an image decoding apparatus that restores a quantized transform block by inversely scanning 1D quantized coefficients, inversely quantizes the quantized transform block using a quantization step size, inversely transforms the transform block to generate a residual block, and generates a prediction block according to an intra prediction mode. When a size of the transform block is 8×8, the quantized transform block is divided into a plurality of sub-blocks, and the plurality of sub-blocks and coefficients of each sub-block are scanned using a same scan pattern determined according to the intra prediction mode. When the intra prediction mode is a horizontal mode, the scan pattern is a vertical scan.
Image processing apparatus to which moving vector search technique is applicable, control method therefor, and storage medium storing control program therefor
An image processing apparatus that is capable of improving image stabilization performance by improving motion vector search performance by restricting a search range even for an image with a large motion due to a camera shake of an image pickup apparatus at a tele-end side of a zoom lens or a shoot while walking at a wide-end side. A motion vector search unit searches for a motion vector of a reference image later input from an image pickup device with respect to a standard image input previously. A control unit sets at least one of a search range and a search position of a motion vector searched by the motion vector search unit based on position-posture change information about the image pickup apparatus detected by a detection unit and image stabilization control information obtained from an image stabilizing unit.
Apparatus for encoding a moving picture
Provided is an apparatus for encoding a moving picture. When the current block is coded in intra prediction and a size of the transform block is larger than 4×4, the quantized transform coefficients of the quantized transform block are divided into a plurality of sub-blocks. The plurality of sub-blocks are scanned according to a first scan pattern determined by the intra prediction mode of the current block and the quantized transform coefficients of each sub-block are scanned according to a second scan pattern determined by the intra prediction mode of the current block. The first scan pattern for scanning the plurality of sub-blocks is the same as the second scan pattern for scanning the quantized transform coefficients of each sub-block.
Apparatus for decoding a moving picture
Provided is an apparatus for decoding a moving picture. When the current block is coded in intra prediction and a size of the transform block is larger than a predetermined size, a plurality of sub-blocks are restored by applying a first scan pattern determined according to the intra prediction mode of the current block on the quantization coefficient sequence, and the quantized transform block is restored by applying a second scan pattern determined according to the intra prediction mode of the current block on the plurality of sub-blocks. The first scan pattern for restoring the plurality of sub-blocks from the quantization coefficient sequence is the same as the second scan pattern for restoring the quantized transform block from the plurality of sub-blocks.
Apparatus for decoding a moving picture
Provided is an apparatus for decoding a moving picture. When the current block is coded in intra prediction and a size of the transform block is larger than a predetermined size, a plurality of sub-blocks are restored by applying a first scan pattern determined according to the intra prediction mode of the current block on the quantization coefficient sequence, and the quantized transform block is restored by applying a second scan pattern determined according to the intra prediction mode of the current block on the plurality of sub-blocks. The first scan pattern for restoring the plurality of sub-blocks from the quantization coefficient sequence is the same as the second scan pattern for restoring the quantized transform block from the plurality of sub-blocks.
Scalable image distribution in virtualized server environments
A method and system include replicating an image representing a sequence of bytes on a local storage medium on a target device by determining a similarity between images and reconstructing a new image using equivalent blocks from one or more similar images locally available on the target device or available on donor devices to reduce network link usage and transfer time in replicating the image.
Coding and decoding images with sign data hiding
A method is provided for coding at least one image split up into partitions, a current partition to be coded containing data, at least one data item of which is allotted a sign. The coding method includes, for the current partition, the following steps: calculating the value of a function representative of the data of the current partition with the exclusion of the sign; comparing the calculated value with a predetermined value of the sign; as a function of the result of the comparison, modifying or not modifying at least one of the data items of the current partition, in the case of modification, coding the at least one modified data item.
Video coding using compound prediction
Combining intra-frame and inter-frame prediction is described. A first combined prediction block for a first block is formed by combining weighted pixel values of a first inter prediction block and a first intra prediction block. The weighting is based on the intra prediction mode. A second combined prediction block is formed by selecting a second intra prediction block using a first partitioned area of the first block, selecting a second inter prediction block using a second partitioned area of the second block, the first and second partitioned areas separated by a border at an angle to an orientation of a row or column of pixels, and combining pixel values of the second inter and intra prediction blocks that are weighted by a weighting function based on a distance of a pixel from the border. One of the combined prediction blocks is selected to encode the first block.
Just-in-time (JIT) encoding for streaming media content
A method and system for just-in-time (JIT) encoding of media content is described. The JIT encoder allows a server to create one or more slices of requested portions of the media content according to one of the available quality profiles when requested without previously creating and storing different copies of the media content at the different quality profiles.
Individual buffer management in video coding
In one embodiment, a method determines buffer parameter settings for a plurality of layers in a scalable video stream for a video. Each layer includes a respective buffer parameter setting. Then, the method applies respective buffer parameter settings to individual buffers for respective layers in the plurality of layers. The respective layers are buffered in the individual buffers according to the respective buffer parameter settings where the respective layers are combined after the buffers to form a combined bitstream including the respective layers for decoding.
Layered video encoding and decoding
In some examples, a layered encoding component and a layered decoding component provide for different ways to encode and decode, respectively, video streams transmitted between devices. For instance, in encoding a video stream, a layered encoding component may analyze the content of successive video frames and determine different types of encoding techniques to use for different ones of the video frames. Further, in some cases, some of the encoding techniques may be used on less than an entire video frame. In another example, in decoding a video stream, a layered decoding component may receive video frames encoded with different types of encoding. The layered decoding component may decode the differently encoded video frames and combine them to reconstruct a video stream.
Adaptive coding, transmission and efficient display of multimedia (acted)
Embodiments of the invention receive videos and feedback data associated with the videos from a client device and adaptively encode the videos based on the feedback data. The encoded videos are suitable to be transmitted over a network and displayed on the client device. Embodiments of an encoding server adaptively changes resolution of a video on the fly or scale the video quality up or down based on the factors described by the feedback data, including network condition for transmitting the encoded video, network delay, encoder and decoder processing capacity and feedback from viewers of the decoded video. Furthermore, the encoding server adaptively encodes the video based on a combination of various factors described by the feedback data.
Method and apparatus for encoding/decoding image using variable-size macroblocks
A video decoding apparatus for reconstructing residual signals of a current block to be decoded by using a tree structure, includes: a decoder to decode, from a bitstream, prediction type information on the current block to be decoded, and divide, by the tree structure, the current block into one or more subblocks of which information on residual signals is to be reconstructed, by decoding, from the bitstream, a partition flag which indicates whether a block corresponding thereto is divided into blocks of a lower layer in the tree structure, wherein blocks which are not further divided are identified as the subblocks of which information on the residual signals is to be reconstructed; and a reconstructor to reconstruct information on residual signals of each of the subblocks from the bitstream.
Parsing friendly and error resilient merge flag coding in video coding
Methods and apparatus for parsing friendly and error resilient merge flag coding in video coding are provided. In some methods, in contrast to merging candidate list size dependent coding of the merge flag in the prior art, a merge flag is always encoded in the encoded bit stream for each inter-predicted prediction unit (PU) that is not encoded using skip mode. In some methods, in contrast to the prior art that allowed the merging candidate list to be empty, one or more zero motion vector merging candidates formatted according to the prediction type of the slice containing a PU are added to the merging candidate list if needed to ensure that the list is not empty and/or to ensure that the list contains a maximum number of merging candidates.
Adaptive filtering based upon boundary strength
An image decoding apparatus that includes a motion compensation prediction circuit configured to conduct motion compensation prediction for each of blocks to be decoded by using the reconstructed image, an inverse transformation circuit configured to conduct inverse orthogonal transformation for the data of the blocks to be decoded, and a determination circuit configured to determine a filtering strength and whether or not to conduct filtering, with respect to each of the boundaries. In addition, the determining circuit is configured to determine filtering is conducted when at least one of the two adjacent blocks is intra-coded, and filtering is not conducted when both of the two adjacent blocks are not intra-coded, a non-zero transformation coefficient is not coded in both of the two adjacent blocks, the two adjacent blocks are predicted by the same reference frame, and an absolute value of a difference between motion vectors of the two adjacent blocks is smaller than a specified threshold value.
Image encoding device, image decoding device, image encoding method, and image decoding method for generating a prediction image
When carrying out an average prediction, the intra predictor carries out a filtering process on target pixels of the intra prediction located at an upper end and a left end of the block, the filtering process using an intermediate prediction value, which is an average value of adjacent pixels of the block, and at least one adjacent pixel of the target pixel. The intra predictor sets a filter coefficient to ½, associated with the intermediate prediction value for a target pixel at an upper left corner of the block, and sets a filter coefficient to ¼, associated with an adjacent pixel adjacent to an upper side or a left side of the target pixel. As a result, prediction errors locally occurring can be reduced, and the image quality can be improved.
Iterative video optimization for data transfer and viewing
Computer-implemented techniques that leverage available CPU resources to incrementally improve quality and compression of media for faster transfer over data networks for improved viewing are described.
Image encoding apparatus, image encoding method, image decoding apparatus, and image decoding method
The present invention provides an image encoding/decoding technique that is capable of achieving the higher compression efficiency. An image encoding method comprises: an intra prediction step which performs intra prediction on a block basis to generate a predicted image; a subtraction step which calculates the difference in prediction between the predicted image generated by the intra prediction step and an original image; a frequency conversion step which performs frequency conversion processing for the difference in prediction; a quantization step which subjects the output of the frequency conversion step to quantization processing; and a variable-length encoding step which subjects the output of the quantization step to variable-length encoding processing; wherein the intra prediction encoding step predicts a target pixel to be encoded by use of pixel values of two reference pixels between which the target pixel to be encoded is located.
Conditional concealment of lost video data
A receiving apparatus comprises a receiver for receiving a video signal, an output for outputting the video signal to a screen, storage device or further terminal; and a concealment module for applying a concealment algorithm to a lost area of the video signal. The concealment module is configured to determine an estimate of concealment quality selectively directed toward a region of interest within the area in question, and based on this estimate to determine whether or not to apply the concealment algorithm.
Detection, location, and processing of static pixels
Systems and methods may provide for the detection, location, and processing of static pixels during video processing. In one example, the method may include determining if a color component value of a pixel located at a pixel location remains constant between a first frame and a next frame, determining if the pixel is a low-difference pixel, calculating a motion-compensation error of the color component, determining if the motion compensation error of the color component is large, and generating a map of static pixels including the pixel.
Video encoding method, video decoding method, video encoding apparatus, video decoding apparatus, and programs thereof
A reduction in residual energy of inter-frame prediction with motion compensation and improvement in encoding efficiency are achieved by using a region-dividing type adaptive interpolation filter that takes an edge property of a picture into consideration. An edge calculation unit calculates edge information from reference picture data designated by a motion vector. A region dividing unit divides an encoding target frame into a plurality of regions that are units to which interpolation filters are adaptively applied based on the edge information. A filter coefficient optimizing unit optimizes an interpolation filter for a fractional-accuracy pixel for each of the regions. A reference picture interpolating unit interpolates the fractional-accuracy pixel of a reference picture using the optimized interpolation filter, and a predictive encoding unit performs predictive encoding using motion compensation of fractional-accuracy.
Program products for iterative quantization rate control in video encoding
Iterative video encoding systems, methods and computer program products, where residue quantization and data packing operations of an encoding process may he repeated with various values for a quantization parameter, without repeating the determination of macroblock prediction codes. In an embodiment, the size of an actual file generated by encoding is compared to a target file size. The QP may be adjusted depending on the amount by which these file sizes differ. The quantization and packing may then be repeated with the adjusted QP. In an embodiment, a greater difference in these file sizes results in a greater adjustment to the QP.
Image capturing device, control method for grouping image capturing devices, and control system thereof
An image capturing device, control method for grouping image capturing devices, and control system thereof are provided. The control method is applied in the control system for controlling image capturing devices. Every image capturing device includes a direction detection unit for indicating a current direction, a command receiving unit, a computing unit, a driving unit and an image capturing unit. The control method comprises the following steps. A steering command for indicating a specified region is provided to at least two image capturing devices. The computing unit calculates a steering angle according to the current direction and specified region. The driving unit drives the image capturing device to capture the specific region according to the steering angle.
Anaglyph ghost cancellation
Ghosting of images can be produced by the use anaglyph techniques to produce stereoscopic images. Ghost effects can be produced when filtering is applied to images by displays such as televisions or monitors. Techniques and apparatus are described for reducing or cancelling ghost effects. Anaglyph ghost reduction information can be produced to reduce or cancel ghost effects.
Apparatus and control method for stereoscopic display using viewer's position information
A method is provided for controlling stereoscopic display. The method includes a collection device obtaining a position variation between a space position of a viewer at the current time and a space position of the viewer at the previous time, wherein the position variation is an offset of parallel translation of the space position of the viewer relative to a display panel. The method also includes an adjusting device adjusting a stereoscopic display apparatus based on the space position of the viewer at the current time and the position variation.
Method and apparatus for representing storage capacity allocation of an audio/video recording device
A method and apparatus for representing allocation of capacity of a storage unit within an audio/video (AV) recording device is described. In one example, a quantity of AV program data stored on the storage unit is determined. A storage schedule for new AV program data that is defined over a predetermined time period is obtained. A deletion schedule for old AV program data that is defined over the predetermined time period is obtained. Temporally dynamic indicia is produced that is representative of allocation of the capacity of the storage unit over the predetermined time period in response to the quantity of stored AV program data, the storage schedule, and the deletion schedule. A pictorial representation of the temporally dynamic indicia may then be displayed on a display coupled to the AV recording device.
Imaging apparatus, imaging method, recording medium, and program
Disclosed herein are an imaging apparatus, an imaging method, a recording medium, and a program which are capable of processing imaging data in a manner similar to that of a normal frame rate. Image data captured by a solid-state imaging element capable of performing imaging at a high resolution and a high frame rate is supplied to a memory control. The memory control, at the same time as writing the imaging data input from the imaging element in a frame memory, reads preceding frames of imaging data that are recorded on the frame memory, and sequentially respectively outputs them in parallel, as video image data items, for each frame, to respective camera signal processing units. In the camera signal processing units, a video output, a viewfinder output, codec units, and recording units, processing similar to that when a frame rate that is ¼ the imaging frame rate is executed.
Display device and method for adjustment of an image
A display device and method are provided. The display device includes a projector that is configured to project light based on an image signal per frame unit on a screen and a light receiving sensor that is configured to output a voltage proportional or inversely proportional to an amount of light reflected by the screen among the light according to the image signal. A controller is configured to measure the amount of light reflected by the screen based on the voltage output from the light receiving sensor, to detect an abnormal position at which the voltage that corresponds to the amount of light reflected by the screen exceeds a predetermined reference voltage, and to adjust an image signal to be projected on the abnormal position in a subsequent frame.
Camera for photogrammetry and aerial photographic device
The invention provides a camera for photogrammetry, which comprises a shaft 11 tiltably supported in any direction via a gimbal 14, a GPS device having a GPS antenna 12 installed on an upper end of said shaft, and a photographic device main unit 13 installed on a lower end of said shaft, wherein optical axis of said photographic device main unit is designed so as to direct in vertical and downward direction, said photographic device main unit has an image pickup unit 24 installed in a known relation with said GPS antenna and a control device for controlling image pickup of said image pickup unit, and said control device 19 controls said image pickup unit so that still image is acquired by the image pickup unit, and an image pickup position at the time of image pickup is obtained by said GPS device.
Validating asset movement using virtual tripwires and a RFID-enabled asset management system
Validation of asset movement can begin with the definition of a virtual tripwire for video cameras of a video surveillance system that monitor a defined area of interest through which RFID-identified assets are conveyed. The virtual tripwire can visually define a boundary within the view field of the video camera. The video camera can detect the movement of an asset through a virtual tripwire and an asset management system can be notified of the potential misdirection of the asset. The asset management system can obtain the asset's RFID data from a RFID handling system that monitors the area of interest. The validity of the detected movement can be determined using RFID data and an asset movement specification that defines pathing rules for assets and virtual tripwires. When the movement of the asset is determined to be invalid, a record of suspect movement data can be generated for the asset.
Method and system for providing secure CODECS
A system and method is arranged to provide compression and decompression of digital content in a secure manner. The system is configured to authenticate a source of the digital content, and to further determine a consumer's entitlements and rights for access to the digital content. Based upon the determined entitlements and rights for access, the system is directed to decrypt, and decompress the digital content. In one embodiment, a component of the system is enabled to establish a trust relationship with at least one other component of the system, to minimize an opportunity for piracy of the digital content. In another embodiment, a secure clock is directed to provide protection against hackers that may employ an in-circuit emulator, or the like.
Communication management system, communication terminal, communication system, and recording medium
A communication management system manages session information regarding a contents data session being established to communicate contents data among a plurality of participating communication terminals, and receives a request for registering a group of the plurality of participating communication terminals that are currently participating in the session, from a first participating communication terminal of the plurality of participating communication terminals, during when the session is being established. In response to the request for registering, the communication management system stores first candidate information of the first participating communication terminal in a first memory, the first candidate information associating the group of the plurality of participating communication terminals with the first participating communication terminal.
Optimized video snapshot
Methods, media and devices for generating an optimized image snapshot from a captured sequence of persons participating in a meeting are provided. In some embodiments, methods media and devices for utilizing a captured image as a representative image of a person as a replacement of a video stream; as a representation of a person in offline archiving systems; or as a representation of a person in a system participant roster.
Method for performing a video talk enhancement function and an electric device having the same
A method for performing a video talk enhancement (VTE) function in an electric device is provided. A video talk application performs a video call and receiving at least one first frame generated by a camera sensor from a middleware. The input unit receives an input signal to select one of several video talk enhancement modes provided by a video talk enhancement application. Under the video call, the middleware replaces the at least one first frame with a second frame(s) or modifying the at least one first frame according to the selected video talk enhancement mode. The video talk application transmits the modified at least one first frame or the second frame(s) to another electric device, so that the modified at least one first frame or the second frame(s) which is transmitted is shown on the another electric device as a video talk frame.
One embodiment relates to an electronic apparatus including a video processor and a video interface controller. The video processor transmits first uncompressed video data and high dynamic range (HDR) information in a first transmission format. The HDR information is associated with each video frame of the first uncompressed video data. The first transmission format includes a first non-blanking region in each video frame. The video interface controller receives the first uncompressed video data and the HDR information from the video processor in the first transmission format. The video interface controller transmits second uncompressed video data and the HDR information to an external device in a second transmission format. The second uncompressed video data corresponds to the first uncompressed video data. The second transmission format includes a second non-blanking region in each video frame, and the first non-blanking region is larger than the second non-blanking region.
Methods and devices for generating and using video images comprising control messages
A device (D1) is dedicated to the processing of video images which are intended to be transmitted to a receiver (R) so as to be used to construct synthesis images to be displayed. This device (D1) is devised, in the presence of a video image acquired consisting of video image data, so as to construct a processed image by replacing in this acquired video image some of its video image data by a control message which contains at least one group of control data, of nonvideo type and defining information which is intended to be used by the receiver (R) to construct a synthesis image to be displayed on the basis at least of the remaining video image data, after the replacement, in the processed image.
Image recording apparatus and image recording method for rapid mirroring restoration
An image recording apparatus includes an image recording unit which records a first image data, and a second image data which is recorded in a first recording medium in a second recording medium; an instruction unit which gives an instruction regarding writing start positions of the first image data and the second image data in the second recording medium; and a recording ending control unit which performs a control so that recording of the second image data is ended when a recording position of the first image data and a recording position of the second image data in the second recording medium match with each other.
Method and system for fail-safe program recording in personal video recorders
A method, system, and non-transitory computer-readable storage medium for implementing backup recording of events are disclosed. The method may include detecting, by a personal video recorder (PVR) cluster coordinator, an interruption in a current or scheduled recording of an event at a first PVR. The method may further include determining, by the PVR cluster coordinator, a PVR cluster corresponding to the first PVR in response to the detection, the PVR cluster comprising a plurality of PVRs and including the first PVR. The method may further include facilitating, by the PVR cluster coordinator, a backup recording of the interrupted recording at a serving PVR in the PVR cluster after determining the PVR cluster corresponding to the first PVR. Further, the PVR cluster coordinator may be implemented by at least one computer processor.
Display apparatus, display system, and display method
There is provided a control apparatus including a command acquiring unit that acquires selection commands of pieces of content transmitted from a plurality of controllers, and a display processing unit that, when at least a part of users who use the plurality of controllers view same content, enlarges a display area of the content.
Video tag layout
In one embodiment, a portion of a video sequence is displayed on an interface. A video tag is also displayed in the portion of the video sequence. In one embodiment, the video tag is a placeholder tag that shows where the tag would be displayed in the portion of the video sequence. An input area is then displayed that allows input of tag information for the video tag. For example, the user may specify what kind of tag they would like and also any information that can be displayed for the tag. For example, the user may specify that they would like the tag to be a text tag that includes the logo of the company.
Pipelined analog-to-digital converter incorporating variable input gain and pixel read out analog front end having the same
A pipelined ADC incorporating variable input gain has a novel first stage generating a first digital output and a residue according to an analog input. The first stage comprises a novel MDAC. The MDAC comprises an operational amplifier, a feedback capacitor, a first sampling capacitor and a second sampling capacitor. First terminals of the feedback capacitor, the first sampling capacitor and the second sampling capacitor are connected to an inverted input terminal of the operational amplifier. A non-inverted input terminal of the operational amplifier is connected to a ground. In a sampling phase, second terminals of the feedback capacitor, the first sampling capacitor and the second sampling capacitor are connected to the analog input. In a charge transferring phase, second terminals of the feedback capacitor, the first sampling capacitor and the second sampling capacitor are respectively connected to the output terminal, a flash ADC output and the ground.
A/D conversion circuit and image-capturing device
An A/D conversion circuit includes: a reference signal generation section that includes an integrator circuit having a first constant current source and generates a reference signal that changes in accordance with a constant current output by the first constant current source; a comparison section that executes a comparison process between an analog signal and the reference signal and terminates the comparison process; a clock generation section that includes a delay section having delay units for delaying an input signal for a predetermined time and outputting delayed input signals in accordance with a constant current output by a second constant current source, and outputs a lower phase signal based on the signals output from the delay units; a latch section that latches the lower phase signal at a timing related to the termination of the comparison process; and a count section that counts a clock based on the lower phase signal.
CMOS image sensor having a timing signal generator implemented using both hardware and software using the same
A CMOS image sensor includes a hardware-implemented timing signal generation module that generates a timing signal based on a timing pattern generated by a software-implemented timing pattern generation and control module.
Manufacturing method of semiconductor device
A drain of a first transistor is formed by performing ion implantation on a semiconductor substrate using a first member as a mask for a gate electrode of the first transistor. Further, ion implantation is performed on the gate electrode of the second transistor after thinning a second member.
Solid-state imaging device, imaging apparatus, and electronic apparatus with negative feedback circuit
A solid-state imaging device includes a photodiode that generates a signal charge by photoelectric conversion according to received light, a floating diffusion that accumulates the signal charge generated by the photodiode, an amplification transistor that amplifies and outputs a power source voltage according to the signal charge accumulated in the floating diffusion, a dummy transistor having the same characteristics as the amplification transistor, and a negative feedback circuit that applies a negative feedback to the dummy transistor such that respective source currents of the amplification transistor and the dummy transistor are equal to each other. The respective source currents of the amplification transistor and the dummy transistor are controlled so as to coincide with each other by the negative feedback circuit.
Backside illumination image sensor, manufacturing method thereof and image-capturing device
An image sensor includes a first photoelectric conversion unit that converts light incident through a first opening to an electric charge, a second photoelectric conversion unit that converts light incident through a second opening which is smaller than the first opening to an electric charge, and a signal output wiring that outputs a first signal generated by the electric charge converted by the first photoelectric conversion unit and a second signal generated by the electric charge converted by the second photoelectric conversion unit. The second photoelectric conversion unit is disposed between the second opening and the signal output wiring.
Semiconductor apparatus having a decoding function, method of controlling the same, and camera
A semiconductor apparatus, comprising a decoder arranged in a path between a first power supply line and a second power supply line and configured to receive a signal and decode the signal, a switch portion arranged, in series with the decoder, in the path between the first power supply line and the second power supply line, and a control unit configured to set the switch portion in a conductive state so as to cause the decoder to decode the signal after the signal has changed from one of high level and low level to the other.
Photodetector having a first transistor with a channel formed in an oxide semiconductor layer and method for driving photodetector
Adverse effects of noise are reduced. A photodetector circuit, a difference data generation circuit, and a data input selection circuit are included. The photodetector circuit has a function of generating an optical data signal. A first data signal and a second data signal is input to the difference data generation circuit and the difference data generation circuit has a function of generating difference data of data of the first data signal and data of the second data signal. The data input selection circuit has a function of determining that the data of optical data signal is regarded as data of the first data signal or data of the second data signal.
Auto-correction of depth-sensing camera data for planar target surfaces
A depth-sensing camera may be used to locate objects on a planar surface. A planar fit calculation is used to model the surface. One problem with the best planar fit calculation is that it is not robust over time. Firstly, this is because the depth data has a non-linear curve near its extremities because of camera lens distortion. Secondly, as the depth-sensing camera warms up and its thermal activity changes, the depth data drifts and the initial plane fit is no longer valid. The position and the amount of curvature and drift may be different for cameras of the same make and model in some cases. In accordance with some embodiments, algorithms may be used to detect and correct for these types of errors to support more robust plane fitting in real time.
Image capture apparatus and method for controlling the same
An image capture apparatus can execute automatic focus detection of an imaging optical system, using a signal obtained from an image sensor. First image-forming position information is obtained by performing, using first weights, weighted addition on information regarding image-forming positions of the imaging optical system, the information corresponding to different spatial frequencies. In addition, second image-forming position information is obtained by performing, using second weights, weighted addition on the information. A result of the automatic focus detection is corrected based on a result of a comparison between the first and second image-forming position information. The first weights correspond to an evaluated band at the time of appreciating an image, and the second weights correspond to an evaluated band of the signal used in the automatic focus detection.
Solid-state image pickup device with transmittance control element
Provided is a solid-state image pickup device that includes: a plurality of pixels each including a photoelectric conversion element; and a transmittance control element provided on a light incident side of the photoelectric conversion element of at least a part of the plurality of pixels, and configured to change a transmittance of incident light by an external input.
Location-tag camera focusing systems
A system for improved camera focusing systems using subject location tags. More particularly, the disclosed subject matter relates to providing a system comprising camera accessories and in-lens technologies that allows for the continuous, automated focus of a subject by measuring the distance between the camera and a subject that has been “tagged” with a locator beacon.
Image-based motion sensor and related multi-purpose camera system
An image-based motion sensor includes a camera system and a processing system. The camera system is arranged for generating an image output including a plurality of captured images. The processing system is arranged for obtaining a motion sensor output by processing the image output, wherein the motion sensor output includes information indicative of at least one of a motion status and an orientation status of the image-based motion sensor. For example, information indicative of the orientation status of the image-based motion sensor may includes roll, pitch, and yaw related motion information, and information indicative of the motion status of the image-based motion sensor may includes speed, acceleration and displacement information.
Technique for view synthesis
A technique for computing an image of a virtual view based on a plurality of camera views is presented. One or more cameras provide the plurality of camera views. As to a method aspect of the technique, two or three camera views that at least partially overlap and that at least partially overlap with the virtual view are selected among the plurality of camera views. The image of the virtual view is computed based on objects in the selected camera views using a multilinear relation that relates the selected camera views and the virtual view.
Mobile terminal and method of controlling the mobile terminal
Provided is a mobile terminal including a main body, first and second cameras that are arranged on the front and rear sides of the main body, respectively, a sensing unit that senses the extent to which the main body moves when driving the first and second cameras, and a controller that when a panorama photographing mode is selected, drives the first and second cameras at the same time in such a manner that the first and second cameras capture their respective images depending on movement of the main body, and when the extent of the sensed movement of the main body falls out of a reference range, stops photographing and connects first images captured by the first camera and second images captured by the second camera to generate at least one panorama picture. The rotation of the main body within a reference range enables a panorama picture to be generated.
Color processing apparatus and method therefor
Capturing conditions and capturing of an imaging apparatus, which captures a plurality of color patches displayed on a monitor, are controlled. Imaging data is inputted from the imaging apparatus. Measurement values of the plurality of color patches are calculated from the imaging data using color conversion characteristics corresponding to the capturing conditions. First capturing conditions used at start of the capturing for the calculation of measurement values based on the imaging data captured by the imaging apparatus using initial capturing conditions. After the capturing for the calculation of measurement values is started, when the imaging data is input, it is determined whether or not perform the capturing by changing the capturing conditions.
Image pickup apparatus and control method with focus adjusting modes
An image pickup apparatus comprising an imaging element for capturing an object image, and a sensor dedicated to focus detection for receiving light reflected from the object to output a signal for focus detection is provided. The image pickup apparatus carries out continuous shooting that sequentially exposes an imaging element. The image pickup apparatus acquires mode related information used in the determination of a focus adjusting mode applied to an interval between each of the exposures during the continuous shooting, and based on the acquired mode related information, determines either a first focus adjusting mode for calculating a defocus amount based on a signal output by the imaging element or a second focus adjusting mode for calculating the defocus amount based on a signal for focus detection output by the sensor dedicated for focus detecting, to be the focus adjusting mode applied to the interval between each of the exposures.
Focus adjustment apparatus, focus adjustment method, program and image pickup apparatus
To achieve focusing suitable for a perspective-conflict object in AF control using a phase difference detection method, a focus adjustment apparatus detects a defocus amount of an image pickup optical system based on plural image signals generated from an exit pupil of the system, sets plural areas including a predetermined area used for focus adjustment of the system as areas of the plural image signals used for detecting the defocus amount, generates a focus adjustment signal for performing the focus adjustment based on the defocus amount detected in the predetermined area, and determines whether a perspective conflict occurs in the predetermined area according to the defocus amount detected in each set area. If the perspective conflict occurs in the predetermined area, the area used for the focus adjustment is changed from the predetermined area to any of other set areas, according to the defocus amount detected from each area.
Distance measurement device for motion picture camera focus applications
A system for determining a distance to a region of interest. The system may be used to adjust focus of a motion picture camera. The system may include a first camera configured to have a first field of view, and a second camera configured to have a second field of view that overlaps at least a portion of the first field of view. The system may include a processor configured to calculate a distance of the selected region of interest relative to a location by comparing a position of the selected region of interest in the first field of view with a position of the selected region of interest in the second field of view.
Image capturing apparatus, image capturing system, control method of image capturing apparatus, and computer readable storage medium
An image capturing apparatus includes: an encoding unit configured to perform encoding processing on an image output from an image capturing unit for obtaining an image; a communication unit configured to receive designation of a resolution of the encoding unit from an information processing apparatus; an obtaining unit configured to obtain a resolution which is associated with the resolution set for the image capturing unit, and is settable for the encoding unit; a determination unit configured to determine whether the designated resolution is the resolution obtained by the obtaining unit and settable for the encoding unit; and a transmission unit configured to transmit an error response to the information processing apparatus, if the determination unit determines that the designated resolution is not the resolution obtained by the obtaining unit and settable for the encoding unit.
Integrated image sensor and lens assembly
An integrated image sensor and lens assembly includes a lens barrel adhered to a lens holder or a lens barrel adhered to an image sensor assembly using an adhesive. The lens barrel and lens holder or the lens barrel and the image sensor assembly are bonded based on the sheer strength of the adhesive. Thus, adhesive expansion does not substantially affect the distance between the lens and the image sensor and therefore does not affect the focal plane of the assembly.
Compact interchangeable lens type camera
A camera body includes a body mount to which an interchangeable lens is attachable; a CMOS image sensor; a main circuit board; and a mechanical shutter provided with an aperture. The main circuit board is disposed between the body mount and the CMOS image sensor, and an opening through which light from the interchangeable lens toward the CMOS image sensor passes is formed in the main circuit board. The mechanical shutter is disposed between the body mount and the CMOS image sensor, and is attached to the main circuit board.
Image pickup unit and method for manufacturing the same
An image pickup unit according to the embodiment includes an image pickup device chip having a rectangular shape in plan view, a transparent substrate which is equal in plan view dimensions to the image pickup device chip and is joined to the image pickup device chip, and a lens unit joined to the transparent substrate with the center of a light receiving portion of the image pickup chip aligned with the optical axis, in which, two locking portions are formed in the transparent substrate and two locked portions of the lens unit which is equal to or smaller than the image pickup device chip in plan view dimensions are fitted into or abut on the corresponding locking portions respectively.
Devices, methods, and systems for expanded-field-of-view image and video capture
In various example embodiments, an imaging system and method are provided. In an embodiment, the system comprises a first image sensor array, a first optical system to project a first image on the first image sensor array, the first optical system having a first zoom level. A second optical system is to project a second image on a second image sensor array, the second optical system having a second zoom level. The second image sensor array and the second optical system are pointed in the same direction as the first image sensor array and the first optical system. The second zoom level is greater than the first zoom level such that the second image projected onto the second image sensor array is a zoomed in on portion of the first image projected on the first image sensor array. The first image sensor array includes at least four megapixels and the second image sensor array includes one-half or less than the number of pixels in the first image sensor array.
Solid-state imaging device, drive method thereof and camera system
A solid-state imaging device includes: pixel signal reading lines; a pixel unit in which pixels including photoelectric conversion elements are arranged; and a pixel signal reading unit performing reading of pixel signals from the pixel unit through the pixel signal reading lines, wherein the pixel signal reading unit includes current source circuits each of which includes a load element as a current source connected to the pixel signal reading line forming a source follower, and the current source circuit includes a circuit generating electric current according to a slew rate of the pixel signal reading line and replicating electric current corresponding to the above electric current to flow in the current source.
Receptacle for an image capture computing device and a stabilization device
An apparatus comprises a receptacle configured to receive a mobile computing device that has an integrated image capture component. Further, the apparatus comprises a first handle having a first handle top portion that is operably connected to the receptacle and a first handle bottom portion that is operably connected to the receptacle. In addition, the apparatus comprises a second handle having a second handle top portion that is operably connected to the receptacle and a second handle bottom portion that is operably connected to the receptacle. The apparatus also comprises a tripod receiver that is operably attached to the first handle. The tripod receiver receives a tripod connector to connect a tripod to the first handle.
Image capturing apparatus
There is provided an image capturing apparatus, comprising an image capturing device disposed inside of a housing; and a holding unit held by an image capturer upon an image capture, a first turning axis substantially orthogonal to an optical axis being disposed in the holding unit, a display unit on which an image captured by the image capturing device is displayed turning freely opened/closed to the housing centering around the first turning axis.
The depth camera includes a control module and a lighting module. The control module includes a control board, a control unit, a seat and a lens mounted on the seat. The lighting module is mechanically and electrically connected to the control module and includes a base board having a through hole for being passed by the lens and corresponding to the control board in position. A plurality of lighting units are symmetrically arranged on the base board and beside the through hole. A shade module is fastened on the base board and has a mount board and shades thereon. The bottom of each shade has an opening for receiving one of the lighting units.
Methods for processing multimedia flows and corresponding devices
A method for synchronizing of multimedia flows provided by different sources or transmitted via different transport protocols to a single receiving device or are designed to be rendered by different rendering devices. According to the invention, a reference datum representative of a datum of the first multimedia flow is provided in the second multimedia flow and associated with a datum of this second multimedia flow to synchronise the two flows. This reference datum constitutes a timing reference for the datum of the second multimedia flow with which it is associated. It is used to synchronize the two multimedia flows.
Method and apparatus for modifying a multi-frame image based upon anchor frames
A method, apparatus and computer program product are provided to cause image content to be adjusted in a manner consistent with the corresponding viewing direction, such as the viewing direction of a user of a head-mounted display device. In regards to a method, one or more first anchor frames are determined within a multi-frame image, a user's viewing direction is determined relative to the multi-frame image and at least one second anchor frame is identified based on the user's viewing direction. The method also includes determining one or more tonal modification parameters of a frame in relation to the viewing direction based upon the one or more first anchor frames and the at least one second anchor frame. Further, the method generates a plurality of modified frames based on the one or more tonal modification parameters. A corresponding apparatus and computer program product are also provided.
Determining a special-toner screen based on a type of gradation process for a color-toner screen
An image processing device includes: a first gradation-process determining unit that determines a type of gradation process for a process-color toner plate in accordance with halftone mode information; a second gradation-process determining unit that determines a type of gradation process for a special toner plate other than a process color in accordance with the type of gradation process determined by the first gradation-process determining unit; and a halftone processing unit that performs halftone processes in accordance with the types of gradation processes that are determined by the first gradation-process determining unit and the second gradation-process determining unit.
Memory control circuit and image forming apparatus
A memory control circuit includes a writing unit configured to receive image data that is input and write the image data into a memory; a first reading unit configured to read the image data written in the memory and output the image data to a determination unit that determines a type of image of the image data; and a second reading unit configured to read the image data written in the memory and output the image data to an image processing unit that performs image processing according to a determination result obtained by the determination unit. When the second reading unit is outputting the image data to the image processing unit, the first reading unit outputs image data, which is input subsequently to the input of the image data, to the determination unit.
Applying luminance conversion processing in accordance with image attribute information to improve edge detection and image data correction for pseudo halftone processing
An image processing device includes a first gradation processor to apply first pseudo halftone processing to image data, an edge detector to detect an edge portion of the image data to output a detection result, a correction value calculator to calculate an edge correction amount and convert the image data to corrected image data based on the edge correction amount, a second gradation processor to apply, to the corrected image data, second pseudo halftone processing for edge processing, and an output selector to adopt a processing result at the first gradation processor to a non-edge portion of the image data, and a processing result at the second gradation processor to an edge portion of the image data, based on the detection result at the edge detector.
Imaging device capable of temporarily storing a plurality of image data, and control method for an imaging device
An imaging device of the present invention comprises an image data acquisition circuit for acquiring image data, a temporary storage for temporarily storing the image data, an image processing circuit for subjecting the image data that has been temporarily stored to image processing, a storage medium that can store at least some saved data of the image data that has been temporarily stored, a management information storage for storing management information for managing the save data, and a control circuit for, when the saved data is stored in the storage medium, carrying out management of the saved data using the management information.
Processing image read by overlapping adjacent line sensors by detecting frequency of density variations in seam-read image and synthesizing seam-read images based on detection result to form seam image
A read image processing apparatus is provided for processing a read image read by line image sensors arranged such that one end parts of which adjacent to each other are overlapped in a sub-scanning direction. The read image processing apparatus includes a density variation detector, a seam processor, and a line image generator. The density variation detector detects whether a density variation occurs for not less than a predetermined number of times or not in each of a plurality of regions in a seam-read image. The seam processor generates a seam image by synthesizing the seam-read images read by the line image sensors adjacent to each other in accordance with a detection result made by the density variation detector. The line image generator generates a read image corresponding to one line based on read images read by the line image sensors and the seam image generated by the seam processor.
Image reading apparatus and image forming apparatus having a guide member
An image reading apparatus includes a movable body supported so as to be movable along a support table, the movable body supporting at least a light source; a controller that controls the light source; a connection member that electrically connects the movable body and the controller together, the connection member formed into a strip shape whose longitudinal direction extends in a direction in which the movable body moves and whose lateral direction extends in a widthwise direction, the connection member including a folded-back portion that is folded back in a direction opposite to the direction in which the movable body moves; and a guide member disposed along the connection member, the guide member having a high flexural rigidity in a portion that extends along the direction in which the movable body moves, the guide member having a low flexural rigidity in a portion corresponding to the folded-back portion.
Sheet conveyance device
A sheet conveyance device includes a sheet mount on which a standard-sized sheet is mountable; a first conveyor to bring in the sheet from the mount, convey the sheet through a reverse conveyance path such that the sheet passes through a specific operation position, and eject the sheet into a sheet ejection area outside the mount; and a second conveyor to bring in a hard sheet with a higher bending rigidity than the sheet from one end of a straight conveyance path along a plane passing through the specific position of the reverse path, and eject the hard sheet conveyed along the straight path from another end of the straight path at a sheet ejection area side. The mount includes a hard sheet ejection port to let through at least a leading edge portion of the hard sheet to be ejected from the second conveyor in a sheet ejection direction.
Image forming apparatus having a projection to regulate an attitude between two casings when a load is applied
An image forming apparatus includes an image reading portion; an image forming portion; a first casing; a second casing including a space which continuously opens to two directions perpendicular to not only the vertical direction but also each other and including a mounting portion where the first casing is mountable at a position where the space does not continuously open to the two directions; one or more supporting portion; and one or more auxiliary supporting portion. A gap is formed between itself and the other one of the first casing and the mounting portion in a state in which no load is externally exerted on the first casing, and wherein the auxiliary supporting portion contacts the other one when a load not less than a predetermined load is externally exerted on an upper portion of the first casing downward at a position deviated from the mounting portion.
Image forming apparatus that delivers image data displayed on digital signage devices and computer-readable non-transitory medium with image forming control program recorded thereon
An image forming apparatus includes an image reading section, a storage section, a communication section, an acceptance section, and an operation control section. The storage section has a plurality of storage regions at least one or more of which are signage-specific storage regions associated one-to-one with the one or more digital signage devices. Each of the signage-specific storage regions stores the image data generated by the image reading section having read the original document. The operation control section is further configured to, when the acceptance section accepts the delivery instruction, allow the communication section to send the image data stored in the signage-specific storage region associated with the individual digital signage device designated in the delivery instruction to the digital signage device designated in the delivery instruction and allow the storage section to store the delivery instruction as history information in the associated signage-specific storage region.
Information processing system capable of automatically configuring settings for functional cooperation between apparatuses, image pickup apparatus, method of controlling the image pickup apparatus, and storage medium
An information processing system that automatically configures settings for functional cooperation between an information processing apparatus and an image pickup apparatus. The information processing system includes a network camera and an MFP configured to receive predetermined information from the camera. A CPU of the camera sends the predetermined information to the MFP when an approach of a user to the MFP is detected. The CPU sets a detection frame extracted from image data obtained by picking up an image of the MFP, to detect the user's approach thereto. Then, the CPU determines whether the detection frame has a size equal to or larger than a predetermined threshold. When the size of the detection frame is not equal to or larger than the predetermined threshold, the CPU detects whether or not the user has approached the MFP, using the detection frame.
Loudspeaker localization with a microphone array
Embodiments of the present disclosure provide systems and methods for source localization using a microphone array. Such an embodiment, among others, utilizes circuitry to process audio signals and microphone signals to remove an echo (produced by a nearby loudspeaker) from the microphone signals using a plurality of adaptive echo cancellation filters. Location information is then determined for the loudspeaker based on the plurality of adaptive echo cancellation filters used to remove the echo.
Trading environment recording
Systems and methods for recording multiple channels of incoming data. Shared data may be centrally recorded, whereas unique data may be recorded at an endpoint, such as a workstation. A central recording system may request the unique data recorded at the endpoint and correlate it to the shared data. In some implementations, the data may be audio, where the shared data is audio played over speakers, whereas the unique data is audio at a handset of a workstation.
Call steering in a call center system
A system, method, and computer readable medium for processing call in a call center platform are provided. A call center platform provides for customized delivery of calls to contact centers. The call center platform provides the ability to transfer calls in a manner that reduces carrier connection costs and intra-state costs. The call center platform provides alternative connectivity mechanisms, such as packet-switched, circuit-switched, and multiprotocol label switching connectivity, for a call center enterprise customer. An interactive call center service provider front end includes a media gateway adapted to receive circuit-switched and packet-switched customer calls and a self service platform. Customer calls may be directly connected with the call center front end and contact center via circuit switched connections, via VoIP connections, and may be connected utilizing intelligent call routing and central queue point mechanisms.
Day-level SLA-based routing
A system for day-level SLA-based routing, comprising a statistics server configured to collect, store, and provide service level agreement data; and a routing server configured to receive at least a customer interaction via a network, and configured to compare an interaction against service level agreement data provided by the statistics server, and configured to produce an interaction priority based at least in part on the comparison, and configured to route the interaction based at least in part on the interaction priority.
Method for connecting users with agents using user selected agents and agent ratings
A content type of content interacted by a user is determined and a skill set is determined based on the content type. A first set of preferred agents is identified based on the skill set, where the preferred agents have a prior relationship with the user. A second set of recommended agents is identified based on the skill set, where the recommended agents have no prior relationship with the user. The first and second set of preferred agents and recommended agents are transmitted to a user device of the user to allow the user to select one of the preferred and recommended agents. The transmitted information include information indicating whether any of the preferred and recommended agents is available the point in time. A live communication session is established between the user device and an agent device of a selected agent.
Activities assignment optimization for multi-skill contact center
A system and method for setting agent cross skill enablement levels in a contact center. In one embodiment, a series of simulations is performed to determine optimum cross skill enablement levels for various circumstances, e.g., the number of agents, the proficiency of each agent at each of a number of skills, and the rates of incoming interaction requests requiring each of various skills. A lookup table is created which is subsequently used, during configuration of the contact center prior to operation, or in real time during operation, to adjust agent cross skill enablement levels.
Dynamic modification of automated communication systems
A script for an interactive communication is dynamically adjusted during the interactive communication. The interactive communication is monitored over a communication network using a computer with a processor and memory for input during the interactive communication. Input incompatible with a script for the interactive communication is detected for the interactive communication. The incompatible input is categorized. The script is dynamically adjusted during the interactive communication into a dynamically updated script in accordance with the categorizing. Information is provided over the communication network to the initiator in accordance with the dynamically updated script.
User device detection and integration for an IVR system
A system and method includes one or more processors one or more processors coupled to a memory. The one or more processors may execute instructions from the memory to perform the steps including receiving an audio communications request from a first user device of a user, identifying a second user device of the user in response to receiving the audio communications request, providing a suggestion that the user use the second user device with the system, receiving a response from the user responding to the suggestion, establishing a communication channel with the second user device, and providing content associated with the audio communications request to the second user device.
Identifying information associated with an incoming telephone call
A telephone number corresponding to an incoming telephone call may be utilized to obtain information associated with the incoming call. If it is determined that the telephone number does not match records stored on the device on which the call is received, a request may be sent from the receiving device to an external device to obtain information associated with the incoming call. The request may be directed to a remote contacts application, another device listed in a data store of the receiving device, or to the calling device itself. When a response is received, the information may be displayed or otherwise utilized by the receiving device.
Crisis negotiation telephone
A negotiator makes and receives calls and SMS with a subject through a virtual number. Parties of individuals serving specialized functions are optionally dialed in to monitor the call/receive the SMS each time those communications occur. Alternatively, a member of a particular party can dial in ahead of a call and be placed in a waiting room for the party until the call happens. Different parties may have different functions. For example, one party may be configured such that members can discuss amongst themselves while hearing the negotiator and the subject communicate. Another party may be configured such that communications among the members is disabled such that each member only hears audio from the negotiator and subject.
Disablement of lost or stolen device
The restricted use of a cellular network to facilitate disablement of a device that is suspected lost or stolen. Accordingly, even if the device is not capable of general use of the cellular network, disablement communications are still permitted across the cellular network. Accordingly, the device may receive a disable command from the disablement service over the cellular network, and acknowledge processing of the disable command to the disablement service also over the cellular network. Thus, efforts by an unauthorized possessor of the device to prevent disablement by removing the physical authentication module are thwarted. Likewise, turning the cellular service off using software settings at the device also does not prevent the device from being disabled via cellular network communication.
Usage of software programs on mobile computing devices
A solution is provided for controlling usage of one or more software programs on one or more mobile computing devices. A corresponding method comprises monitoring an indication of a position of each mobile computing device to determine a location area of the mobile computing device. The method comprises assigning each one of the software programs to a usage group. For each location area, the software programs of each software program type are assigned to the corresponding usage groups providing one or more usage characteristics that fulfill one or more usage requirements of each software program; this is performed according to one or more optimization criteria depending on one or more usage weights of each usage group. The method comprises enabling the usage of each software program according to the usage characteristics of the corresponding usage group.
Methods and arrangements employing sensor-equipped smart phones
The present technology concerns improvements to smart phones and related sensor-equipped systems. Some embodiments involve spoken clues, e.g., by which a user can assist a smart phone in identifying what portion of imagery captured by a smart phone camera should be processed, or identifying what type of image processing should be conducted. Some arrangements include the degradation of captured content information in accordance with privacy rules, which may be location-dependent, or based on the unusualness of the captured content, or responsive to later consultation of the stored content information by the user. A great variety of other features and arrangements are also detailed.
Protective connector and applications thereof
A protective connector includes a core assembly structure, mating pins and a mating coupling structure. The core assembly structure has circuitry mounted therein. The mating coupling structure substantially encases the core assembly structure and mates with another connector such that the mating pins of the protective connector are electrically coupled to pins of the other connector. The mating coupling structure is mechanically free-moving with respect to the core assembly structure such that forces applied to the mating coupling structure to mate the protective connector to the other connector are not applied to the circuitry within the core assembly structure.
Apparatus for bi-directional communication with medical and wellness devices
An apparatus that can communicate with multiple medical and/or wellness devices and encode data for efficient transmission is described. The apparatus can detect the presence of and receive data from one or more medical and/or wellness devices. The apparatus can receive, decode, store, process, encode, and forward received data through a wired and/or wireless interface. The wired data interface utilizes encoding techniques to render the data stream compatible with audio inputs of personal computing and communication devices.
Method and apparatus for displaying incoming call information
The present disclosure discloses method and apparatus for displaying incoming call information. The method includes: generating a first trigger signal according to an incoming call received by a mobile terminal; in response to the first trigger signal, determining whether a current interface is an application interface and generating a determining result accordingly; intercepting data corresponding to a regular interface when the determining result is that the current interface of the mobile terminal is an application interface; generating a block interface according to the first trigger signal, the block interface comprising operation option and prompt information related to the incoming call; and displaying the block interface along with at least a portion of the current application interface.
Systems and methods for managing communication
A method includes providing a contact list comprising a plurality of contacts and in response to at least one of (1) occurrence of a predetermined time and (2) receiving a manual initiation input, presenting at least one communication option of a first contact of the plurality of contacts selected from the contact list. The plurality of contacts is not presented during the period of time between the occurrence of the predetermined time and the presenting of the at least one communication option of the first contact.
Button-type connector module and electronic device using the same
A button-type connector module and an electronic device using the button-type connector module are provided. The electronic device is adapted to the pluggable hot plug component. The electronic device includes a main body and a button-type connector module. The main body includes a motherboard. The button-type connector module is disposed in the main body. The button-type connector module includes a push button unit, a connector and a circuit board. The connector includes an accommodation recess. The hot plug component is plugged into or removed from the accommodation recess, when the connector moves relative to the main body to expose the accommodation recess. The circuit board is disposed between the push button unit and the connector. The push button unit and the connector are electrically connected to the motherboard of the main body via the circuit board.
Mobile terminal comprising a display rotable about a casing
There is provided a mobile terminal including a casing that includes an audio output unit that outputs audio, and a transmissive display unit provided rotatable about the casing. The transmissive display unit is disposable in a plane intersecting a principal face of the casing while the audio output unit is outputting audio.
Protective shell for electronic equipment
A protective shell for electronic equipment contains: a first casing and a second casing which are connected together to form an accommodating cavity for accommodating electronic equipment. The first casing has a first bottom plate, the second casing has a second bottom plate, a first end of the first bottom plate retains with a first end of the second bottom plate, and the first bottom plate has a protective fence arranged around a second end and two peripheral sides thereof, the second bottom plate has a protective fence formed around a second end and two peripheral sides thereof. Each protective fence of the first bottom plate and the second bottom plate has a curved retaining portion defined on a free end thereof. Thereby, the protective shell dissipates heat to air quickly so as to cool the electronic equipment efficiently.
Distributed service processing of network gateways using virtual machines
A network gateway device includes an ingress interface, an egress interface, and a load balancing module coupled to the ingress and egress interfaces. The load balancing module configured to receive a packet from the ingress interface, determine a set of a plurality of processes corresponding to a connections session associated with the packet based on a policy. For each of the identified processes, the load balancing module is to identify a service processing module executed by a virtual machine that is capable of handling the identified process, and to send the packet to the identified service processing module to perform the identified process on the packet. The packet is then transmitted to the egress interface of the gateway device to be forwarded to a destination.
Processing a unit of work
A client computer group is created at a server computer by selecting a subset of a group of client computers, where each of the group of client computers has a separate communication channel with the server computer. A message from at least one of the subset of the group of client computers is received at the server computer. In response to receiving messages from at least two of the subset of the group of client computers within the client computer group, the messages are grouped under a single unit of work. A single decision associated with the single unit of work for the client computer group is computed. Each of the at least two of the subset of the group of client computers is operable to accept the single decision.
Method for managed social networking services
A method for managing closeness of a connection in SNS is provided and includes: calculating an intimacy distance of a connection based on times of activities or amount of interactions between a user and the other end of the connection, tuning the intimacy distance by other factors the user chooses; controlling the closeness of a connection and in disclosure according to the intimacy distance calculated. With the embodiments of the present invention, a user can control the closeness of a connection and control data disclosure based on the closeness with individual people regardless of their groups or circles.
Forwarding content on a client based on a request
A computing device configured to forward a request is described. The computing device includes a processor and instructions stored in memory that is in electronic communication with the processor. The computing device receives a request. The computing device also identifies an agent module based on the request to obtain an identified agent module. The computing device further determines an administrative service based on the identified agent module. The computing device additionally forwards the request to the administrative service. The computing device also sends a reply to the identified agent module.
Aggregating social networking system user information for display via stories
To generate stories for presentation to social networking system users, one or more story generation engines receives a set of actions of social networking system users. Various story generation engines output stories of different types that collect particular types of actions and arrange the actions in a specified format for presentation. The story generators may avoid selecting the same actions for different stories. Stories generated by the various story generators may be ranked and the ranking used to select stories for presentation to one or more social networking system users.
Systems and methods for social dating are provided. In particular, some embodiments provide recommendations for connections (i.e., candidate users) based on a user's social graph. These recommendations can identify potential single individuals that may be good matches for dating or can identify individuals with other commonalities or shared experiences to create dialog. For example, the recommendations for a user can include single individuals that are friends of a friend. The user can be presented with information about the recommendation and then ask for an introduction from the user's friend. As another example, the recommendations can be based on subject matter selected by the user (e.g., twins, cancer, phone type, etc.) with or without any friendship connections. The user may also be able to filter or further refine the searches based on other criteria such as interests, location, age, and/or other constraints. Rewards can be provided in some cases to encourage participation.
Computer system and method for data transmission
Methods and devices for data transmission may comprise a computer system comprising: a reception module configured to receive and store condition data assigned to data elements of a data delivery unit; a context checking module configured to check whether a second mobile communication terminal, external to the computer system, satisfies one or more conditions defined by the condition data; and a data transmission module configured to trigger transmission of context-specific data elements from the computer system via the mobile radio network to the first mobile communication terminal. The computer system may be configured to obtain, from a networking unit of the mobile radio network, current attribute data associated with the second mobile communication terminal, and the context checking module may be configured to check, based on these current attribute data and respective condition data, whether the second mobile communication terminal satisfies the conditions.
Propagating communication awareness for communication sessions
Techniques for propagating communication awareness for communication sessions are described. In at least some embodiments, a communication session refers to an exchange of communication media between different communication endpoints. According to various embodiments, communication awareness of a communication session is propagated among various autonomous networks involved in routing the communication session. Communication awareness, for instance, is propagated out-of-band from a data stream that carries the communication session.
Storage management operations based on executable files served on demand to storage management components
Systems and methods are disclosed for speedily upgrading (e.g., via service packs) components of a storage management system, such as media agents and data agents, which may number in the thousands. The disclosed methods and systems provide a lightweight and flexible approach. Executable files such as service packs are deployed to a network-shared file system and are served on demand to each targeted host computing device to launch a data agent and/or media agent component. New service packs (e.g., upgrades) are installed on another shared drive and the connection thereto is refreshed by each targeted storage management component to begin executing the new version on demand. The resultant overall upgrade process across the storage management system may be substantially shortened, and the network burden greatly reduced.
Technique for synchronized content sharing
Multiple media devices (101-104) at different locations can advantageously synchronize shared content by including chronology information with each piece of content. Each media device maps received content pieces (102, 104) from other devices, along with content pieces (108, 110) on the device itself to a common time line (106). The mapped content, when displayed, will depict the earliest content earliest on the time line and the latest content piece appears latest on the time line.
Methods for obtaining content from a peer device
A first peer device connects to a first mesh network, which does not have the second peer device. The first peer device transmits a request for the content to a third peer device over the first mesh network. In response to the request, the first peer device receives, from the third peer device, the identity of the second peer device and the identity of the file containing the content. The third peer device also creates a tracker representing the request. Subsequently, the third peer device connects to the second peer device over another mesh network (to which the first peer device may not be connected) and indicates to the second peer device that the first peer device has requested the file. The first peer device then connects to the second peer device over another mesh network and receives the file from the second peer device.
Efficient maintenance of a distributed system membership view
A method, system and computer program product are disclosed for maintaining a membership view of a distributed computing system comprising a multitude of members, wherein each of said members sends out a message indicating that said each of the members is available in the system. In one embodiment, the method comprises maintaining a first list of at least some of the members in the distributed system; and over a period of time, when one of the members sends out the message indicating that said one of the members is available in the distributed system, adding said one of the members to a second list. At defined times, the first list is replaced with the second list. In an embodiment, the method further comprises at said defined times, starting a new, empty second list.
Method and system of network transfer adaptive optimization in large-scale parallel computing system
A method and apparatus for performing network transfer adaptive optimization in a computing system. The method includes forming a message to be transferred through the network based on obtained information related to a task executed by computing nodes, wherein the message includes identification of the computing nodes to perform data transfer and corresponding sink nodes, and an amount of data the computing nodes to transfer to the corresponding sink nodes; transferring the message to a network layer; and forming a data transfer pattern for data transfer between the computing nodes and the corresponding sink nodes in accordance with the message.
Methods, systems, and media for stored content distribution and access
Methods for distributing and providing access to stored content from remote storage comprising; receiving a first request to access a first portion of stored content from a requestor, wherein the first request is in a file system request format; creating a placeholder for the stored content so that the placeholder has at least one parameter identical to the stored content and the placeholder can hold the first portion of the stored content and at least a second portion of the stored content; requesting the first portion of the stored content from remote storage; receiving the first portion of the stored content from the remote storage; storing the first portion of the stored content in the placeholder; and before the second portion of the stored content has been stored in the placeholder, providing the first portion of the stored content to the requestor using a file system response format.
Generation of background content requests for performance analysis
Features are disclosed for automatically generating content requests and recording metrics and other information about execution of the requests. The requests can be background requests, executed by user computing devices during idle periods and without any user initiation. The background requests may be browser requests for content pages. Metrics and other information about execution of the requests may be recorded during execution of the background requests and reported to a performance analysis system. Instructions to execute background requests can be generated so as to develop a data set, such as a data set for analyzing request execution performance.
System for monitoring conversational audio call quality
A method, a computer program product, and a computer system for monitoring conversational audio quality of Voice over Internet Protocol (VoIP) are provided. A monitoring system determines a size of an audio file and an available bandwidth. The monitoring system predicts time of receiving the audio file, based on the size and the bandwidth. The monitoring system determines whether the time of receiving the audio file exceeds a monitoring timer interval by a certain threshold. The monitoring system uses an intrusive testing method for monitoring call quality, in response to determining that the time of receiving the audio file exceeds the monitoring timer interval by the certain threshold.
Method and apparatus for sharing presentation data and annotation
A method and apparatus for sharing presentation data, interactions, and annotation information between devices. The method includes: converting the presentation data into at least one image; transmitting the at least one image to the second device; displaying an image from among the at least one image on a screen of the first device, and transmitting image identification information about the displayed image to the second device; adding annotation data to the displayed image, based on a user input; and transmitting annotation information about the annotation data to the second device. The second device displays an image corresponding to the image identification information on a screen of the second device based on the image identification information, and the second device displays the annotation information on the image displayed on the screen of the second device the annotation information.
System, terminal device, computer readable medium and method
A service registration system includes a server that provides a service through a network, a peripheral device capable of communicating with the server and using the service, and a terminal device capable of communicating with the server and the peripheral device. When the terminal device receives the registration requesting information representing information related to registration necessary for using the service from a user, the terminal device transmits registration requesting information to the server. When the server receives the registration requesting information from the terminal device, the server transmits service information necessary for using the service. Further, the terminal device can transmit the service information to the peripheral device when it receives the service information from the server. Further, when the peripheral device receives the service information from the terminal device, the peripheral device stores the received service information and operates in a mode where the service is usable.
Method, apparatus and system for establishing session
Provided are a method, an apparatus and a system for establishing a session. In the method, a Visit Policy and Charging Rules Function (V-PCRF) receives an S9 session establishment triggering message from a Home Policy and Charging Rules Function (H-PCRF), wherein the S9 session establishment triggering message is used for triggering establishment of an S9 session and a first S9 sub-session, and the first S9 sub-session is used for policy control of Evolved Packet Core (EPC)-routed traffic; the V-PCRF determines whether the S9 session has been or is being established; and when it is determined that the S9 session has been or is being established, the V-PCRF indicates to the H-PCRF that the S9 session has been or is being established. Through the solution, conflict is avoided in the process of establishing the S9 sub-session in the related art and the stability of the system is improved.
System and method for securing virtualized networks
A method and apparatus that secures a dynamic virtualized network is described. In an exemplary embodiment, a device receives a current network policy of the dynamic virtualized network. In addition, the current network policy includes multiple network policy elements, where each of the multiple network policy elements identifies an authorized endpoint in the dynamic virtualized network. The device further determines a network security policy for the dynamic virtualized network from the current network policy. The network security policy includes one or more second network policy elements that are a different network policy element than one of the multiple network policy elements of the current network policy. In addition, each of the one or more second network policy network elements adds an additional policy on how network traffic is processed in the dynamic virtualized network by a port of one of the plurality of network access devices. The device further applies the network security policy to each network access device that is affected by the network security policy.
System and method for directing malicous activity to a monitoring system
A system of client devices and a server system implementing services makes use of credentials to facilitate authentication of the client devices with the server and generates log entries for different accesses to the server system. A monitoring system places credentials and log entries referencing the monitoring system with the credentials and log entries on the client devices without any authentication or actual access attempts by the client devices to the monitoring system. Unauthorized access to the client devices may result in the credentials and log entries to the monitoring system being accessed and used to access the monitoring system. Attempts to exploit the monitoring system using the credentials and log entries is contained within the monitoring system and data is collected to characterize malicious code attempting to exploit the monitoring system. The data is then used to prevent attacks and detect compromised client devices and server systems.
Web redirection for content scanning
This specification generally relates to using redirect messages to implement content scanning. One example method includes receiving from a client a first request for a network resource, the first request including an original location of the network resource; determining that a response to the first request is to be analyzed; sending a redirect response to the client including a modified location for the network resource different than the original location; receiving a second request for the network resource from the client, the second request including the modified location; in response to receiving the second request for the network resource from the client: retrieving the network resource from the original location; determining that the retrieved network resource is suitable to send to the client; and in response to determining that the retrieved network resource is suitable, sending the retrieved network resource to the client.
System and method for detecting insider threats
An approach for detecting an insider threat is described. Embodiments include determining one or more features from one or more network transfers among a plurality of network entities, determining a baseline behavioral profile of the plurality of network entities based on the one or more features; and determining at least one malicious network entity from among the plurality of network entities based on a systematic deviation from the baseline behavioral profile of at least one of the one or more features.
Method and system for detecting restricted content associated with retrieved content
In embodiments of the present invention improved capabilities are described for detecting restricted content associated with retrieved content. The method and system may include receiving a client request for content, saving contextual information from the client request, presenting retrieved content in response to the client request, and presenting the contextual information from the client request, and retrieved content, to a scanning facility. The scanning facility may utilize the contextual information from the client request to aid in the detection of restricted content associated with retrieved content.
Generating risk profile using data of home monitoring and security system
Systems and methods are described comprising a touchscreen that includes a processor coupled to a security system at a premises. A plurality of user interfaces presented via the touchscreen includes a security interface and a network interface. The security interface provides control of functions of the security system and access to data collected by the security system. The network interface provides access to network devices. The network devices are located at the premises and are coupled to the touchscreen. A security server at a remote location is coupled to the gateway and comprises a client interface through which remote client devices exchange data with the gateway and the security system. At least one of the security server and touchscreen collect behavioral data using the security system and the network devices, and generate a risk score using the behavioral data.
System and method for adding context to prevent data leakage over a computer network
Systems and methods for adding context to prevent data leakage over a computer network are disclosed. Data is classified and contextual information of the data is determined. A transmission policy is determined in response to the classification and contextual information. The data is either transmitted or blocked in response to the classification and the contextual information.
Method and system for executing a secure application on an untrusted user equipment
A method for executing a secure application on an untrusted user equipment having storage means with at least one protected region includes establishing a secure or authenticated communication channel between a trusted device and the user equipment. Secure application information of the secure application is provided via the communication channel to be executed on the user equipment. Correctness of the secure application information is checked. Execution of the secure application is initiated on the user equipment via the communication channel such that the secure application is stored in the protected region of the storage means.
Smart beacon data security
A secure beacon-based system includes beacons that may generate dynamic beacon identifiers. A mobile device application may send a request to an application server, including a dynamic beacon identifier. The application server can locally compute the dynamic beacon identifier and compare it to the received beacon identifier to validate the request and determine whether to respond to the request.
Automated credentialing of device newly added to a network
A device newly introduced to a network is automatically credentialed to be able to communicate over a network before the device first communicates with the network. For example, at a point of purchase, a user can provide network identification information to a merchant computing device that effects transfer of that information to the new device such that the new device can communicate directly with the network without initial credentialing directly between the unique device and the local network. In another example, the merchant computing device communicates with the local network to register a newly purchased device with the local network before the newly purchased device is introduced to the network. Accordingly, the network is configured to begin communications with the unique device without initial credentialing directly between the unique device and the local network.
Controlling administration rights
A computer in a network has an operating system. The operating system is configured to prevent running of software not identified in a list of approved software referred to as a white list. Software absent from the list is prevented from running by the operating system. The network has a server which determines, for each item of software on the white list, the administration rights of the users of computers having that item of software. If a white listed software item is present on one or more computers used by users without admin rights, then the admin rights of any user of other computers having the same white listed software item are withdrawn by instructions sent by the server to the computer.
Credential abuse prevention and efficient revocation with oblivious third party
Aspects relate to a computer implemented anonymous credential method for credential abuse prevention and efficient revocation. The method includes acquiring a credential from an issuer at a user, registering the user and credential with an oblivious monitor, generating a user presentation token at the user using the credential, requesting presentation with the oblivious monitor by the user, wherein the user presentation token is transmitted to the oblivious monitor, verifying the user presentation token, wherein presentation is aborted if verification fails, transmitting, from the oblivious monitor, an oblivious monitor presentation token portion to the user in response to the verification passing, transmitting a combined presentation token to a verifier, wherein the combined presentation token includes the user presentation token and the oblivious monitor presentation token portion, and verifying the combined presentation token at the verifier.
Method and system for authorizing secure electronic transactions using a security device having a quick response code scanner
Methods and systems for authenticating a security device for providing a secure access and transaction authorization to a remote network location are provided. The security device is authenticated by installing private security software on the security device. In order to authorize a transaction, a transaction authorization is performed using the security device by display a QR (Quick Response) code from an authorization server on a user terminal and scanning the QR code into the security device. After scanning the QR code, an OTA (One-Time-Authorization) code is sent from the security device to the authorization server for verifying the transaction. Embodiments of the present invention provide increased security and privacy. A corresponding system for authenticating a security device and preforming secure and private transactions is also provided.
User authentication method and user authentication system
A verification server is configured to communicate with a usage target system via a first communication channel and an information terminal device via a second communication channel. The verification server includes: a unit for registering personal information of a user for using a usage target system; a unit for receiving, via the second communication channel, system identification information of the usage target system and a restriction code from an information terminal device owned by a use; a unit for generating an internal system password for the usage target system; a unit for receiving, via the first communication channel, a plurality of characters from the usage target system, the plurality of characters being inputted by a user into the usage target system; and a unit for determining whether the plurality of characters are legitimate based on the internal system password and the system identification information.
Image forming apparatus supporting peer-to-peer connection and method of controlling job authority thereof
A method of controlling job authority of an image forming apparatus that supports a P2P connection includes: storing a profile of a wireless device that is P2P connected to the image forming apparatus in the image forming apparatus; receiving and storing job authority information corresponding to the profile; when the wireless device requests the image forming apparatus to execute an operation, setting a job authority of the wireless device by using the profile and the job authority information; and checking the job authority of the wireless device by the image forming apparatus, and executing the requested job when the wireless device has the authority to perform the requested job.
Strong user authentication for accessing protected network
Systems and methods for strong user authentication for accessing protected networks. An example method may include: transmitting, by a processing device, an authentication request to an authentication server; receiving an access granting token from the authentication server; transmitting, to a nonce server, a nonce request using the access granting token; receiving a cryptographic nonce from the nonce server; and transmitting, to a virtual private network (VPN) server, a VPN connection request using the cryptographic nonce.
Systems, methods, and computer program products for securely managing data on a secure element
Systems, methods, and computer program products are provided for managing applets. A first request to personalize the first applet is received over a communications network. A second request including a command requesting at least a portion of the second applet data is communicated to the second applet. At least a portion of the second applet data is communicated to the first applet. One or more values of the first applet data are replaced with one or more values of at least the portion of the second applet data.
In-vehicle shared-screen system with write back to multiple user accounts
In some examples, a vehicle head unit of a vehicle includes at least one processor; and at least one module operable to: responsive to authenticating a first user at a vehicle head unit of a vehicle, establish a session with a first user identifier, the first user identifier associated with the first user; responsive to authenticating a second user at the vehicle head unit, associate a second user identifier with the session, the second user identifier associated with the second user, wherein the first and second user identifiers are concurrently associated with the session; generate data while the first and second user identifiers are concurrently associated with the session; and store, based on the first user identifier and the second user identifier, the data to both a first user account associated with the first user identifier and a second user account associated with the second user identifier.
Service providing system and data providing method that convert a process target data into output data with a data format that a service receiving apparatus is able to output
A system providing a service to a service receiving apparatus includes a management information storage that stores management information including service identification information, user authentication information of a user, and device authentication information of the service receiving apparatus that are associated with each other; an authentication information receiving unit that receives, as authentication information, at least one of user authentication information and device authentication information from the service receiving apparatus; an authentication unit that performs authentication by referring to the management information storage based on the received authentication information; an obtaining unit that obtains process target data from an external service based on an entry request from the service receiving apparatus that has been successfully authenticated; and a conversion unit that converts the obtained process target data into output data with a data format that the service receiving apparatus is able to output.
Systems and methods of geo-location based community of interest
The embodiments described herein recite a geo-location based community of interest (COI) system and method which add the capability to configure Network Connect Devices (NCD) to identify the location of the source and destination IP addresses. The NCDs would then drop any packets that are destined to an IP address outside of its predefined radius. For any sent/received packets, the geo-location position of the remote IP-address on the wide area network (WAN) may be determined. The distance between two points on the earth given their latitudes and longitudes of the devices may be determined. If the distance is greater than the predefined range, the data packets may be denied. If the distance falls within the pre-determined range, the data packets are allowed to reach their destination.
Non RFC-compliant protocol classification based on real use
A firewall system determines whether a protocol used by an incoming data packet is a standard protocol compliant with Request For Comment (RFC) standards. In the event the protocol is RFC compliant, the firewall transmits the packet to the recipient according to firewall policies regarding the standard protocol. If the protocol is not that of an RFC standard, the firewall determines whether the protocol matches an RFC-exception protocol in a RFC-exception protocol database. If the protocol does match an RFC-exception, the firewall may transmit the packet to the recipient according to firewall policies regarding the RFC-exception protocol. If it does not match an RFC-exception, the firewall may transmit the packet or protocol to a support system where it may be quarantined until it is approved based on a decision that the protocol is safe and/or widely adopted.
Lightweight directory access protocol (LDAP) join search mechanism
Complex search tasks are performed relative to an LDAP directory with a minimal quantity of LDAP search operations. Search tasks that follow relationships between LDAP entries can be performed, even under circumstances in which those relationships are not represented by the hierarchical structure of the LDAP directory. A client application can specify an LDAP control that the client application sends to the LDAP server along with the LDAP search operation. The LDAP server's receipt of the LDAP control can cause the LDAP server to modify the behavior of the search operation so that the LDAP server follows potentially non-hierarchical specified relationships between the LDAP entries in determining the set of entries to return as results of the search operation. As a result, the LDAP server can return a complete set of related result entries to the client application in response to a single LDAP search operation directed by the application.
Method and electronic device for performing exchange of messages
An electronic device is provided that easily performs message exchange that exploits the relative position relationship with other vehicles while traveling. The electronic device (2) includes a display unit (11), a wireless communication unit (20) that receives information including positional information of a sender and message information desired by the sender to be transmitted to a correspondence party, a relative position calculation unit (41) that calculates relative position information of the sender relative to an own device based on the positional information, and a display control unit (43) that provides a first display region (111) to the display unit (11) and display message information in the first display region (111), as well as displaying relative position information without displaying a map.
Location-based notification includes establishment of a rally point and subsequent notification of a user when another user enters the rally point. Senders may set up rally points at various physical locations and specify one or more target recipients that are to be notified when the sender enters the rally point. Target recipients may specify communication settings that dictate whether and/or how they wish to receive notifications under a variety of circumstances. When a sender having a computing device enters a rally point location, a notification is sent from the computing device to a location-based notification service, which notifies each of the target recipients in a manner that complies with the target recipient's individual communication settings.
Simultaneous sharing communication interface
A user can share (show) multimedia information while simultaneously communicating (telling) with one or more other users over a network. Multimedia information is received from at least one source. The multimedia information may be manually and/or automatically annotated and shared with other users. The multimedia information may be displayed in an integrated live view simultaneously with other modes of communication, such as video, voice, or text. A simultaneous sharing communication interface provides an immersive experience that lets a user communicate via text, voice, video, sounds, music, or the like, with one or more other users while also simultaneously sharing media such as photos, videos, movies, images, graphics, illustrations, animations, presentations, narratives, music, sounds, applications, files, and the like. The simultaneous sharing interface enables a user to experience a higher level of intimacy in their communication with others over a network.
Telecommunication and multimedia management method and apparatus
A telecommunication and multimedia management apparatus and method that supports voice and other media communications and that enables users to: (i) participate in multiple conversation modes, including live phone calls, conference calls, instant voice messaging or tactical communications; (ii) review the messages of conversations in either a live mode or a time-shifted mode and to seamlessly transition back and forth between the two modes; (iii) participate in multiple conversations either concurrently or simultaneously; (iv) archive the messages of conversations for later review or processing; and (v) persistently store media either created or received on the communication devices of users. The latter feature enables users to generate or review media when either disconnected from the network or network conditions are poor and to optimize the delivery of media over the network based on network conditions and the intention of the users participating in conversations.
Retrieval of stored transmissions
An instant messaging client application is executed on a first terminal, to participate in threads of instant messaging between user terminals over a packet-based network, each thread comprising exchanging text-based messages between the user terminals of a selected group of contacts comprising the first user and at least one second user. A digital record of the messages is maintained in a data storage medium. A further text-based message is received from one of the second terminals over the packet-based network, comprising a citation of a cited one of the text-based messages previously transmitted over the packet-based communication network and stored in the storage medium. The further message is processed at the first terminal so as, by reference to the storage medium, to recover a context of the cited message in relation to others of the text-based messages in the respective thread.
Information processing apparatus and information processing method
Provided are an information processing method and apparatus being applicable to a first electronic device, comprising establishing a communication link between the first and a second electronic device; displaying a first communication interface; judging whether a predetermined condition is satisfied; and displaying a second communication interface when it is judged that the predetermined condition is satisfied; wherein the second communication interface comprises a first area and a second area, the first and second areas are at least partially overlapped, and the first area comprises a first subarea and/or a second subarea, the second subarea is used for displaying first information acquired by the first electronic device, the first subarea is used for displaying second information acquired by the second electronic device, the second area is used for displaying shared information, and at least a part of the shared information is simultaneously displayed on the first and second electronic device.
Digital data processing methods and apparatus for the automated generation of personalized digital content
The invention provides, in some aspects, digital data processing methods of generating digital content pieces (e.g., email messages or portions thereof) that are customized in accord with individual recipient behaviors. Such methods include the step of generating and digitally transmitting to a digital data devices of a recipient a digital content piece that (i) has a call to action to which the recipient can respond and (ii) that has a plurality of features selected so as to maximize a probability, P(b1,b2, . . . ,bM,x1,x2, . . . ,xM), that the recipient will respond to that call to action, where that probability is defined by the relation P(b1,b2, . . . ,bM,x1,x2, . . . ,xM)=exp(Σj=1, . . . ,Mbjxj)/(1+exp(Σj=1, . . . ,Mbjxj)) where x1,x2, . . . ,xM are values for each of a plurality, M, of features characterizing the digital content piece and/or the recipient, b1,b2, . . . ,bM are respective coefficients for each of the values x1,x2, . . . ,xM.
Methods and systems for clustering emails using email addresses
A computer-implemented method of automatically organizing email messages is performed at a computer system. In the method, a plurality of email messages is accessed. A set of email addresses included in the email messages is identified, respective weights are assigned to respective email addresses in the set of email addresses, and the plurality of email messages is divided into clusters in accordance with the respective weights. Email messages of the plurality of email messages are provided for display, organized by the respective clusters.
Methods and systems for managing distributed media access control address tables
Methods, systems, and computer programs are presented for switching a network packet. One method includes operations for receiving a packet having a media access control (MAC) address, and for switching the packet by a first packet switching device (PSD) when the MAC address is present in a first memory. Further, the method includes operations for transferring the packet to a second PSD when the MAC address is absent from the first memory and present in a second memory associated with the second PSD, and for transferring the packet to a third PSD when the MAC address is absent from the first memory and the second memory.
Tunneling within a network-on-chip topology
Systems and methods relate to a network on chip (NoC) which includes one or more channels configured to carry data packets in a first direction, the first direction having an upstream end and a downstream end. A tunnel is configured between an upstream element at the upstream end and a downstream element at the downstream end. The tunnel includes common wires which are shared by the one or more channels. The tunnel is configured to transmit data packets of two or more formats on the common wires based on common signals. common signals comprise data signals to transmit one or more of data, control, or debug information belonging to the data packets on the common wires, and framing signals to control transmission of the data signals on the common wires.
Software-defined networking single-source enterprise workload manager
Embodiments relate to a software-defined networking (SDN) single-source enterprise workload manager. An aspect includes a system for SDN single-source enterprise workload management. A network flow graph of a workload is received at an SDN controller in an enterprise network from a workload compiler of the enterprise network. The network flow graph defines interactions between a plurality of subprograms distributed in the enterprise network based on compile-time information of the workload. The SDN controller analyzes the network flow graph to identify the interactions between the subprograms as prompts. The SDN controller allocates network resources to define a plurality of flows through the enterprise network based on the prompts and characteristics of the enterprise network. Network traffic in the enterprise network is controlled based on the flows.
Allocating identifiers with minimal fragmentation
In certain embodiments, a system includes one or more memory units and one or more processing units. The memory units store blocks that each include a number of identifiers. The memory units include executable instructions that upon execution by the processing units cause the system to receive a request to allocate an identifier to an entity. The request includes data identifying the entity. A target block of identifiers is identified. The target block includes more unallocated identifiers than any other block. The target block is split into first and second blocks. The identifiers of the second block are each higher than any identifier of the first block. The second block is assigned to the entity, and a lowest identifier of the second block is allocated to the entity.
Packet exchanging device, transmission apparatus, and packet scheduling method
A packet exchanging device includes queues each configured to accumulate one or more packets, a scheduler unit configured to give a certain permissible reading amount indicating amounts of data of readable packets to each of the queues, and a reading processing unit configured to read the one or more packets from the queues by the permissible reading amount in an order in which a reading condition regarding the permissible reading amount for each queue and an amount of data in the one or more packets accumulated in each queue is satisfied.
Network system, front-end unit and control message transmission rate reducing method
A transmission rate of a control message between a switch and a switch controller can be reduced. A network system includes the switch which transfers a packet based on a switch flow table, the switch controller and a front-end unit which relays the control message between the switch controller and the switch. The front-end unit includes a buffer, a flow table storage section and a buffer control section which buffers the control message which hits a buffer flow entry of the flow table in the buffer.
Adaptive resource management for multi-screen video applications over cable Wi-Fi networks
Combining network and client based adaptive streaming approaches enable a distributed and adaptive resource management system for carrier quality video transmission over cable Wi-Fi systems. The adaptive resource management over cable Wi-Fi heterogeneous networks includes a network based approach using client based feedback. The resource management of a video stream is performed on a service provider's network, for example in a cable modem termination system, by evaluating a margin and a fairness index. In embodiments, the rate of a video stream to a requesting client is adjusted and, in embodiments, the rate of a video stream for non-requesting clients is adjusted. Embodiments include mechanisms for call admission control and adaptive streaming based on adjustable resource margins and fairness indices for DOCSIS and Wi-Fi hetnet systems.
Traffic control on an on-chip network
An apparatus, system, and method for controlling traffic on an on-chip network. Embodiments of the method comprise injecting a packet at a first rate into the on-chip network by a first node coupled to the on-chip network, receiving the packet at a second node coupled to the on-chip network, modifying a bit in the packet by the second node in response to determining that a rate at which packets are injected into the on-chip network should change, returning the packet with the bit modified to the first node by the second node, and changing the first rate by the first node in response to detecting that the bit in the packet was modified.
Dynamic bit rate scaling
The invention provides for a download agent executing on a computing device to dynamically select between media files with different media quality for delivery of media content provided by a media content provider. The download agent may select between different media files with similar content but different quality based on a playback rate of the media file, the resolution of the media file, or the encoding scheme of the media file. The download agent may seamlessly transition from one media file to another media file at key frames to avoid any motion artifacts and to avoid requiring a user to restart the media file.
Multi-level flow control
Various methods, systems, and apparatuses can be used to control flow in an ethernet environment. In some implementations, methods can include receiving a flow of ethernet frames at a first device via an ethernet switch, determining that a buffer at the first device exceeds a threshold for an incoming flow, generating an initial pause frame operable to pause only a second device, and transmitting the initial pause frame to the ethernet switch.
Least disruptive AF assignments in TRILL LAN adjacencies
A methodology is described for achieving efficient forwarder appointments. Such efficient appointment may provide an equal load on each participating routing bridge in the TRILL LAN. Load may be viewed as the number of VLANs for which a given node is an appointed forwarder. Furthermore, efficient appointment may be executed with a minimum of traffic disruption. Minimal disruption may be ensured by forwarder appointments by moving a minimum number of VLANs to ensure an equal load on each participating routing bridge.
Computing disjoint paths for reactive routing mesh networks
In one embodiment, a reactive routing computer network may be partitioned into diverse logical topologies, and a source node may transmit route request (RREQ) messages toward a destination node on each logical topology. In response, the source node may receive route reply (RREP) messages indicating routes to the destination node in each logical topology. The source node may thus select a route for each logical topology to reach the destination node, accordingly. In another embodiment, if partitioned logical topologies do not produce two or more routes or as a standalone embodiment, the source node may transmit RREQ messages toward the destination node without any corresponding logical topology. The destination node receives RREQ messages, and two or more routes from the source node to the destination node may be determined (e.g., by the destination or source node) based on the received RREQ messages at the destination node and path selection criteria.
Network system and VLAN tag data acquiring method
In the present situation, a switch cannot identify inner tag data (VLAN ID data before QinQed in the input of OF-NW) given to each of packets which flow in an open flow network (OF-NW). Therefore, OF-NW composed only one VLAN cannot handle a plurality of VLANs. Specifically, a controller handles a plurality of VLANs in the OF-NW in which there is only one VLAN, by mapping the inner tag data given to the packets which flow through the OF-NW, and flow cookie data showing the flow entry corresponding to the packets which flow through the OF-NW. Specifically, the flow flowing into the OF-NW is transferred from the switch to the controller, and the controller learns VLAN ID data in the input of the OF-NW, and handles the plurality of VLANs by mapping this VLAN ID and the flow cookie data showing the flow entry corresponding to the packet in the OF-NW.
Packet preamble and symbol boundary detection
A packet is detected in an input data stream. A stream of fast Fourier transform (FFT) blocks are scanned for a plurality of candidate symbols for a preamble of the packet. The stream of FFT blocks correspond to the input data stream. A symbol boundary is detected between adjacent candidate symbols of the plurality of candidate symbols. The FFT blocks are aligned with the symbol boundary. A transition boundary is detected between different adjacent candidate symbols of the preamble based on the detected symbol boundary. A packet detection indication is provided based on the detected transition boundary.
Method for testing radio frequency (RF) data packet signal transceivers in a wireless signal environment
Method for testing one or more of a group of radio frequency (RF) data packet signal transceiver devices under test (DUTs) with reduced signal interference from the remaining DUTs. A tester broadcasts a signal containing power control instructions about uplink signal power characteristics for communication with the tester. For example, for the LTE 3GPP standards, such characteristics could include power ramping step size, preamble initial received target power or maximum number of preamble transmissions for uplink signals transmitted from the DUTs. Following initiation of communication between the tester and one or more DUTs, the tester broadcasts a signal containing power control instructions to instruct the remaining DUTs to transmit any future signals with different uplink signal power characteristics. For the LTE 3GPP standards, such different characteristics could include reduced power ramping step size, reduced preamble initial received target power or reduced maximum number of preamble transmissions for uplink signals.
System and method for forwarding external notifications of events in a virtual space from a user device to a presentation control device
Notifications of events that take place within a virtual space and/or information related the notifications may be transmitted from a server which hosts an instance of the virtual space to the user device via which users may interact with the virtual space. Based on the received notifications and/or the information related to those notifications, the user device may transmit external notifications to one or more presentation control devices that are within the vicinity of the user device. Determining a particular presentation control device to which the user device should transmit the event notification may depend on whether the presentation control device is located within the vicinity of the user device, a predefined association between a user and the presentation control device, and/or whether the user is present at the presentation control device. The presentation control device may concurrently display notifications that belong to different users.
Methods, systems, and products for monitoring domain name servers
Methods, systems, and products infer performance of a domain name system. Queries to, and responses from, the domain name system are logged and categorized. Each category is associated with a different performance issue related to the domain name system. The number of entries in each category may be used to infer the performance of the domain name system.
Automatic connectivity analysis for a DICOM network
A method, a computer program product, a system and a connectivity analyzer are disclosed for determining available communication functionalities during the configuration of a DICOM node in a DICOM network. According to an embodiment of the invention the available communication functionalities are registered automatically by way of test communication requests and analysis of the test communication responses. Following the analysis the result containing the detected communication functionalities can be provided automatically. The result is preferably provided in the configuration phase and already prior to the entry into operation of the respective DICOM node.
System and method for remote management of a computer
There is provided a system and method for remote management of a computer. The method includes establishing a connection between a remote console and a managed server. Additionally, the method includes detecting a change in the status of the connection and issuing commands to lock the managed server if a change in status of the connection is detected.
Network DNA may be determined for a computer network that taxonomically classifies the computer network. Network DNA may include derived network DNA components and raw network DNA components. Raw network DNA components may be acquired from local or remote sources. Derived network DNA components may be generated according to derived network DNA component specifications. Derived network DNA component specifications may reference raw network DNA components. Network DNA determined for the computer network may include a network species component capable of indicating network species classifications for computer networks. Network species classifications may include enterprise network, home network and public place network. Network species classifications may be determined as a function of network security, network management and network addressing. One or more network DNA stores may be configured to store network DNA for computer networks. Network DNA stores may store network DNA history as well as current network DNA.
Systems and methods for real-time performance monitoring
In one embodiment, a method includes causing a real-time performance dashboard to be displayed, wherein the real-time performance dashboard comprises a time-indexed line that represents a status of at least one monitored system over time, wherein the status is determined, at least in part, as a composite of a plurality of time-series performance metrics. The method further includes receiving, for a time interval, new values of at least a portion of the time-series performance metrics. The method additionally includes, responsive to a determination that at least one performance event has occurred during the time interval, causing a portion of the time-indexed line which corresponds to the time interval to graphically indicate instability. Further, the method includes, responsive to a determination that no performance event has occurred during the time interval, causing the portion of the time-indexed line which corresponds to the time interval to graphically indicate stability.
Intellectual property cores with traffic scenario data
Performance analysis for an electronic system includes determining, using a processor, data traffic patterns stored within a core library of an electronic design automation system, wherein the data traffic patterns are part of cores stored within the core library. The determined data traffic patterns are displayed using a display as modeling options. A user input selecting a displayed data traffic pattern is received; and the selected data traffic pattern is executed as part of modeling the electronic system.
Detecting deviation of data center connectivity by conditional sub-graph matching
Various systems and methods for detecting a deviation of an existing connectivity of a data center from a pre-determined connectivity are presented. One method involves detecting a deviation of an existing connectivity of a data center from a pre-determined connectivity by defining a start node. The start node is defined based on a condition of a component of the data center. The condition is determined based on an explicit relationship between a node and another node of the data center. The method involves conditionally matching a sub-graph and a portion of a main graph by identifying the deviation. The conditional matching is begun at the start node. A failure to conditionally match a portion of the sub-graph and a portion of the main-graph indicates that the deviation exists.
Systems and methods for managing a network are disclosed. For example, systems and methods are disclosed for selectively disabling and/or otherwise configuring devices to avoid interference, overlapping service, and/or the like. Signal information for nearby devices can be detected and analyzed to determine device configuration settings.
Address autoconfiguration using bloom filter parameters for unique address computation
In one embodiment, a method comprises generating, by a network device, a Bloom filter bit vector based on applying Bloom filter parameters to a candidate address autoconfigured by the network device; and selectively repeating, by the network device, the autoconfiguring of the candidate address until the corresponding Bloom filter bit vector includes a bit set at a reserved bit vector position that is reserved for the network device, the reserved bit vector position providing uniqueness of the candidate address within a link layer domain.
Disclosed herein are example embodiments for accommodating different frequencies. For certain example embodiments, at least one device, such as a wireless node, (i) may accommodate different attributes or characteristics of electromagnetic radiation at particular frequencies or (ii) may accommodate multiple different frequencies with a same device. However, claimed subject matter is not limited to any particular described embodiments, implementations, examples, or so forth.
Transmission system, routing control device and method for controlling routing
A first terminal-side routing control device 13 is placed between a first communication network 21 and a first communication terminal 11. A second terminal-side routing control device 15 is placed between a second communication network 22 and a second communication terminal 12. The first terminal-side routing control device 13 includes a first via information setting unit 14 for including, in data received from the first communication terminal 11, information for specifying a routing control device 33 placed on one side of a long-distance transmission path 23 as a via device. The second terminal-side routing control device 15 includes a second via information setting unit 16 for including, in data received from the second communication terminal 12, via information for specifying a routing control device 34 placed on the other side of the long-distance transmission path 23 as a via device.
Method and apparatus for providing alarms in networks
Multiple physical NEs may be presented to a network carrier as a single logical NE comprising multiple physical NEs. Alarms between the multiple physical NEs may be treated as internal connection alarms of the single logical NE instead of endpoint alarms of the multiple physical NEs. A number of alarms in the network may be reduced as well as alarm processing of the alarms at an Operational Support System (OSS), effectuating scaling of alarms as well as relaxing resource requirements (e.g., compute power, memory, etc.) of the OSS.
System, method, and computer program product for identification and handling of a flood of alarms in a telecommunications system
A system and method for identification and handling of a flood of alarms in a telecommunications system. A flood event occurs when a plurality of alarms in a queue of an alarm management system exceeds a threshold. The threshold may be a static, dynamic or adaptive threshold. A classification is determined for each flood event and preventive measures are determined. A plurality of floods having identical or different classifications may be identified respective of the plurality of alarms. A classification may be related, for example, to a network element (NE), element manager (EM), sync event, user actions, external application or rules. Preventive measures may be, for example, resetting a NE or EM or diverting alarms from the queue into another memory portion. The threshold may be determined respective of the total number of alarms in queue, the rate of alarms received and the rate of processing the alarms.
Spintronic wireless communication system for simultaneously modulating multi-band frequency and amplitude
A spintronic wireless communication system for simultaneously modulating multiband frequencies and amplitudes includes a plurality of spin-torque transfer devices which have different frequency characteristics from each other, and OOK modulate or multi-level ASK modulate input data to thereby output a multiband OOK modulation signal or a multiband, multi-level ASK modulation signal; a plurality of matching networks which match individual impedances of the plurality of spin-torque transfer devices; and a broadband antenna which receives the multiband OOK modulation signal or the multiband, multi-level ASK modulation signal from ends of the plurality of matching networks and simultaneously transmits the signals to the outside.
Communicating through physical vibration
A data transmitter includes a vibration motor and a switch to regulate voltage from a direct-current (DC) power supply to the vibration motor. A microcontroller generates a pulse width modulation signal with which to drive the switch and regulate the voltage to the vibration motor in a sinusoidal manner, to generate data as symbols from vibrations that form a series of bits from the vibration motor. The microcontroller may also cancel and jam a sound of vibration (SoV) created by the vibration motor. A data receiver includes a vibration sensor to sample data from vibrations in an incoming signal at a predetermined sampling rate, and a microcontroller, coupled to the vibration sensor, to control the sampling rate through an inter-integrated circuit (I2C) protocol or the like. A memory card, coupled to the microcontroller, stores the data with a serial peripheral interface (SPI) protocol or the like.
Transfer of information within an ASIC using a slotted ring based protocol
A system, comprising: a first local controller (LC) having a first position in a ring network and comprising a first LC cycle counter; a second LC having a second position in the ring network and comprising a second LC cycle counter; and a central controller (CC) connected to the ring network and comprising: a data structure linking the first LC to the first position and linking the second LC to the second position; and a CC cycle counter.
Bonded interconnection of local networks
Apparatus and methods relating to bonded interconnection of local communication networks are disclosed. Bonded communication links, including multiple constituent links that have been bonded together, are terminated to enable communications over the bonded links using bandwidth available on the constituent links. A cross-connect function determines whether received communication traffic is to be forwarded to one or more of a local communication network and the terminated bonded links. The received communication traffic is forwarded in accordance with the determination. The local communication networks may include ring networks, linear networks, or both. The bonded links and links between nodes in a local communication network are bonded DSL (Digital Subscriber Line) links in some embodiments. Bonding of DSL links in this manner can be used, for instance, to extend the reach of DSL service without sacrificing bandwidth.
Control device, control target device and method of transmitting content information thereof
Provided are control device and a method of controlling a server. The method includes requesting an aggregated device list to the aggregate server; receiving the aggregated device list from the aggregate server; selecting at least one aggregated device from the received aggregated device list; requesting, to the aggregate server, content information collected from the selected aggregated device; and receiving, from the aggregate server, the content information of the selected aggregated device transmitted.
Method and apparatus for creating a smart network
A method and apparatus for creating a smart network of control devices includes a master control device and a plurality of programmable control devices; the master control device having a wireless transmission unit and each of the plurality of programmable control devices having a wireless communication unit being configured for wireless communication between the master control device and the programmable control devices. The master control device is positioned within close proximity to one or more of the plurality of programmable control devices in order to send a configuration signal that is used to add the one or more programmable control devices to the network of control devices; a unique identifier being allocated to each of the programmable control devices added to the network of control devices. In the same way, one or more of the programmable control devices can be removed from network of control devices.
Synchronization between conference and calendar systems
A method for scheduling a meeting using an email client that is part of an email system includes receiving a request at the email client to schedule the meeting. The request may include an indication of the resources that are to be provided by a conferencing system for the meeting. The method also includes communicating the request to a conference bridge that is part of the conferencing system and receiving from the conference bridge an access code associated with the meeting. The method also includes appending the access code to a meeting invitation associated with the meeting and providing the meeting invitation to an email server that is part of the email system. The method also includes sending the meeting invitation to users invited to participate in the meeting.
Migrating a chat message service provided by a chat server to a new chat server
Migrating a chat messaging service provided for a chat user is disclosed. At a second chat server from a first chat server, static information associated with a chat user is received. The static information is received before the chat user is indicated as being associated with a migration state. At the second chat server from the first chat server, dynamic information associated with the chat user is received. At least a portion of the dynamic information is received after the chat user is indicated as being associated with the migration state. After the chat user is no longer indicated as being associated with the migration state, a chat message for the chat user is received at the second chat server.
System and method for creating a multi-branched blockchain with configurable protocol rules
The present invention generally relates to blockchain technology. Specifically, this invention relates to creating a blockchain called a slidechain that allows for multiple valid branches or forks to propagate simultaneously with a customized set of protocol rules embedded in and applied to each fork chain that branches from another chain. The invention generally provides a computer-implemented method for accessing, developing and maintaining a decentralized database through a peer-to-peer network, to preserve the original state of data inputs while adapting to changing circumstances, user preferences, and emerging technological capabilities.
Elongated physical unclonable function
An elongate physical unclonable function (PUF) is disclosed. The PUF has a longitudinal axis and contains a plurality of small magnetic particles. A much larger magnet is positioned on the longitudinal axis to indicate a home position. A low-cost linear translation mechanism may be used to read the PUF by referencing position information to the home position. Other devices are disclosed.
System and method for high performance secure access to a trusted platform module on a hardware virtualization platform
A system and method for high performance secure access to a trusted platform module on a hardware virtualization platform. The virtualization platform including Virtual Machine Monitor (VMM) managed components coupled to the VMM. One of the VMM managed components is a TPM (Trusted Platform Module). The virtualization platform also includes a plurality of Virtual Machines (VMs). Each of the virtual machines includes a guest Operating System (OS), a TPM device driver (TDD), and at least one security application. The VMM creates an intra-partition in memory for each TDD such that other code and information at a same or higher privilege level in the VM cannot access the memory contents of the TDD. The VMM also maps access only from the TDD to a TPM register space specifically designated for the VM requesting access. Contents of the TPM requested by the TDD are stored in an exclusively VMM-managed protected page table that provides hardware-based memory isolation for the TDD.
Mobile terminal, restricting system and method of accessing an information using the mobile terminal
The exemplary embodiment relates to a system and method for restricting the disclosure of information employing a mobile terminal, which restricts the disclosure of information using a mobile terminal. In an aspect, the exemplary embodiment provides a mobile terminal, including a short-range communication module performing the short-range communication channel, memory storing authorization information for allowing access to unaccessible information stored in the information device, and a controller transmitting the authorization information through the short-range communication module.
Cryptographic communication system and cryptographic communication method
Provided is a cryptographic communication system including a first semiconductor device and a second semiconductor device. The first semiconductor device includes a common key generation unit that generates a common key CK(a) by using a unique code UC(a) and correction data CD(a), and an encryption unit that encrypts the common key CK(a) generated in the common key generation unit by using a public key PK(b) of the second semiconductor device. The second semiconductor device includes a secret key generation unit that generates a secret key SK(b) by using a unique code UC(b) and correction data CD(b), and a decryption unit that decrypts the common key CK(a) encrypted in the encryption unit by using the secret key SK(b).
Shared data encryption and confidentiality
Embodiments relate to deduplication and compression on data performed downstream from where the data is encrypted. Confidentiality of data is maintained, and the ability of storage systems to perform data reduction functions is supported. Encrypted data to be written to a storage system is separated into one or more data chunks. For a data chunk, a master encryption key for an owning entity associated with the data chunk is retrieved. The data chunk is decrypted into plaintext, and the plaintext is transformed by performing one or more advanced data functions. A private key is created and used to encrypt the transformed plaintext, which is stored as a first encryption unit. A wrapped key is created by encrypting the private key with the master key, and is stored as metadata for the encryption unit to limit data access to the owning entity.
System and method for centralized key distribution
A system and method for distributing key pair credentials that includes receiving a public key message at a key master service, wherein the public key message originates from a first client application; associating a key identifier with the public key; storing the public key at the key master service indexed at least by a key identifier; receiving a request for a public key from an outside service, wherein the request specifies a key identifier; and responding to the request with a public key according to the key identifier.
Managing access to a secure digital document
In a method for managing access to a secure digital document by workflow participants, in which a respective public key is associated with each of the workflow participants, an entry table is populated with a participant entry for each of the workflow participants. Each of the participant entries includes a map entry identifier that corresponds to a map entry tag in a map file, and a first label associated with the map entry identifier. In addition, symmetric keys for the workflow participants are accessed and each of the first labels is encrypted using a respective symmetric key to generate a plurality of second labels, the entry table is populated with the plurality of second labels, each of the plurality of symmetric keys is encrypted with the public key of a respective workflow participant, and the entry table is incorporated into the digital document.
Systems and methods for encryption and provision of information security using platform services
Systems and methods for securing or encrypting data or other information arising from a user's interaction with software and/or hardware, resulting in transformation of original data into ciphertext. Generally, the ciphertext is generated using context-based keys that depend on the environment in which the original data originated and/or was accessed. The ciphertext can be stored in a user's storage device or in an enterprise database (e.g., at-rest encryption) or shared with other users (e.g., cryptographic communication). The system generally allows for secure federation across organizations, including mechanisms to ensure that the system itself and any other actor with pervasive access to the network cannot compromise the confidentially of the protected data.
Mobile terminal, control method thereof, onboard unit, control method thereof, backend server, and control method thereof
There is provided a mobile terminal for use in a system which includes a backend server having a first encryption key and an onboard unit (OBU). A first receiving unit receives, from the backend server, a base shared key encrypted with a second encryption key, the base shared key encrypted with the first encryption key, and a digital signature. A deriving unit decrypts the base shared key with the second encryption key and derives first authentication information based on the base shared key and a first temporary parameter. A second sending unit sends, to the OBU, the base shared key encrypted with the first encryption key, the digital signature, the first authentication information, identification information of the base shared key, and the first temporary parameter.
Hearing device with communication protection and related method
A hearing device includes: a processing unit configured to compensate for hearing loss of a user of the hearing device; and an interface; wherein the processing unit is configured to: receive a session request for a session via the interface, obtain and store a session key, encrypt the session key based on a hearing device key, send a session response comprising the encrypted session key, and receive session data in the session via the interface.
Encryption key generation
A method of generating an encryption key. The method comprises collecting a plurality of user defined variables defined by input from a user and collecting a plurality of environmental variables associated with varying environmental conditions. The method further comprises defining parameters of a plurality of scrambling functions using the user defined variables and calculating a plurality of scramble values. Each scramble value comprises a combination of environmental variables combined in accordance with one of the plurality of scrambling functions. The method further comprises combining the scramble values to produce a scramble code and generating the encryption key from the scramble code.
Method for defense against primary user emulation attacks in cognitive radio networks using advanced encryption
A method for defense against primary user emulation attacks in cognitive radio networks includes the steps of generating an advanced encryption standard (AES)-encrypted reference signal with a transmitter for transmitting to at least one receiver. The method also includes the steps of allowing a shared secret between the transmitter and the at least one receiver and regenerating the reference signal at the at least one receiver and using the regenerated reference signal to achieve accurate identification of authorized primary users as well as malicious users.
Decoy bits method for direct encryption and key generation
A new cryptographic technique is disclosed, called decoy bits method, which can be used to obtain near ideal information theoretic security in both quantum and classical key generation and data encryption, not only for raw security but also under known-plaintext attacks. The technique relates to a method of data encryption by insertion of random bits, called decoy bits, into a data sequence whereby the decoy bits are discarded upon decryption. The positions of the decoy bits are determined by a decoy position determining mechanism. This method can be used in conjunction with other standards of encryption to increase security.
Method for performing phase shift control for timing recovery in an electronic device, and associated apparatus
A method for performing phase shift control for timing recovery in an electronic device and an associated apparatus are provided, where the method includes: generating an output signal of an oscillator, wherein a phase shift of the output signal of the oscillator is controlled by selectively combining a set of clock signals into the oscillator according to a set of digital control signals, and the set of clock signals is obtained from a clock generator, wherein the phase shift corresponds to the set of digital control signals, and the set of digital control signals carries a set of digital weightings for selectively mixing the set of clock signals; and performing timing recovery and sampling on a receiver input signal of a receiver in the electronic device according to the output signal of the oscillator to reproduce data from the receiver input signal.
Methods and systems for frequency multiplexed communication in dense wireless environments
Systems, methods, and devices for high-efficiency wireless frequency division multiplexing are provided. A method includes receiving, at a first wireless device, a reference signal from an associated access point, the reference signal indicative of a time of joint transmission with at least a second wireless device. The method further includes transmitting a first communication to the access point based on the reference signal, the communication utilizing a first subset of wireless frequencies available for use. The first communication is concurrent with a second communication, from the second wireless device, utilizing a second subset of wireless frequencies, the second subset excluding the first subset.
Systems and methods for scheduling transmissions between an access node and wireless devices
Systems and methods are described for scheduling transmissions between an access node and wireless devices. A location may be determined for a plurality of small cells within an access node signal area. Based on the determined locations, a frame structure may be selected for the access node used to communicate with a plurality of wireless devices. Data may then be communicated between the access node and a plurality of wireless devices based on the selected frame structure.
Adaptive frequency domain resource configuration method, apparatus, and communications system
Disclosed are an adaptive frequency domain resource configuration method, an apparatus, and a communications system. The method includes receiving, by a receiving apparatus, a pilot signal transmitted by a transmitting apparatus and feeding back channel information of a channel for transmitting the pilot signal to the transmitting apparatus by measuring the pilot signal, so that the transmitting apparatus divides a bandwidth frequency of the transmitting apparatus according to the channel information. The receiving apparatus can feed back the channel information to the transmitting apparatus according to the received pilot signal, so that the transmitting apparatus can divide the bandwidth frequency according to channel quality, and adaptive adjustment can be performed on a frequency domain resource of each subcarrier according to the channel information fed back by the receiving apparatus.
Method for performing measurement and terminal
A method is provided for assisting measurement of a user equipment (UE). The method is performed by a serving cell for the UE. The serving cell determines whether a cell-specific reference signal (CRS) of the serving cell is to collide with a CRS of a second neighbor cell or whether a CRS of a first neighbor cell is not to collide with the CRS of the second neighbor cell, if the serving cell and the first neighbor cell correspond to aggressor cells to the second neighbor cell corresponding to a victim cell. The serving cell generates a second measurement subframe pattern based on an almost blank subframe (ABS) pattern in response to the determination, and transmits the second measurement subframe pattern for the first and second neighbor cells to the UE.
Methods and devices for enabling high user bitrates in mixed-traffic scenarios
The disclosure relates to a method performed by a communication device 3 for uplink transmission. The communication device 3 is configured with a primary carrier for uplink data transmission and a dedicated secondary carrier for uplink data transmission to a network node 5A, 5B, 7. The method comprises: transmitting 604 a scheduling information report using the primary carrier; receiving 608 a grant to use the dedicated secondary carrier; and transmitting 610 user data using a data channel on the dedicated secondary carrier upon reception of the grant for the dedicated secondary carrier, wherein the communication device 3 is configured such that it does not transmit any data on the dedicated secondary carrier unless receiving a grant for the dedicated secondary carrier. The disclosure also relates to corresponding method in network node, and to a communication device and network node.
Transmit diversity for SC-FDMA
Techniques for transmitting data with transmit diversity for single-carrier frequency division multiple access (SC-FDMA) are described. In one design, a transmitter (e.g., a UE) may form a first symbol vector including first and second modulation symbol sequences. The transmitter may also form a second symbol vector including third and fourth modulation symbol sequences, which may be generated based on the second and first modulation symbol sequences, respectively. Each symbol vector may further include a cyclic prefix and possibly a cyclic postfix for each modulation symbol sequence. The transmitter may generate a first SC-FDMA symbol based on the first symbol vector and a second SC-FDMA symbol based on the second symbol vector. The transmitter may transmit the first and second SC-FDMA symbols from two transmit antennas in a single SC-FDMA symbol period to achieve transmit diversity.
LTE hierarchical burst mode
Methods, systems, and devices are described for hierarchical communications within a wireless communications system. An eNB and/or a UE may be configured to operate within the wireless communications system which is at least partially defined through a first layer with first layer transmissions having a first subframe type and a second layer with second layer transmissions having a second subframe type. The first subframe type may have a first round trip time (RTT) between transmission and acknowledgment of receipt of the transmission, and the second layer may have a second RTT that is less than the first RTT. Subframes of the first subframe type may be multiplexed with subframes of the second subframe type, such as through time division multiplexing.
Apparatus and method for defining physical channel transmit/receive timings and resource allocation in TDD communication system supporting carrier aggregation
A method of defining physical channel transmit/receiving timings and resource allocation is provided for use in a Time Division Duplex (TDD) communication system supporting carrier aggregation. A method for receiving, at a base station, a Hybrid Automatic Repeat Request (HARQ) acknowledgement from a terminal in a Time Division Duplex (TDD) system supporting carrier aggregation of a primary cell and at least one secondary cell includes transmitting a downlink physical channel through one of the primary and secondary cells, receiving the HARQ acknowledgement corresponding to the downlink physical channel of the primary cell at a first timing predetermined for the primary cell, and receiving the HARQ acknowledgement corresponding to the downlink physical channel of the secondary cell at second timing, wherein the second timing is determined according to the first timing.
Short packet for use in beamforming
A method for generating a beamforming training (BFT) unit includes generating a physical layer (PHY) preamble of the BFT unit and generating a first encoding block and a second encoding block using PHY data and MAC data, including at least one of i) using a number of padding bits in a PHY layer of the BFT unit such that the BFT unit consists of the PHY preamble, the first encoding block, and the second encoding block, and ii) generating a MAC protocol data unit (MPDU) having a length such that the BFT unit consists of the PHY preamble, the first encoding block, and the second encoding block.
All-optical time slice switching method and system based on time synchronization
An all-optical time slice switching method based on time synchronization is provided. With the method, continuous data streams in an optical network are assembled to time domain periodic optical time slices and are transmitted in an asynchronous transmission mode. Network nodes obtain high precision synchronization time via a network and control optical switches to switch arriving optical time slices to a target port at precise time points periodically, therefore all-optical switching is implemented. When a connection request arrives, an available path, a wavelength and time slots to be occupied are calculated by a source node according to information on available time slots of the optical network, and the time slots are reserved by a connection management module. After the time slots are reserved, the source node send optical time slices carrying services periodically at reserved time slots. A destination node restores the optical time slices to the data streams.
Distributed spatial mode processing for spatial-mode multiplexed communication systems
A method and system for distributed spatial mode processing is disclosed a number of optical signals are received over an optical link. Each optical signal is received via a respective one of a number of spatial modes of the optical link. The optical link includes a particular spatial mode not used for the receiving. A first one of the number of optical signals received from a first one of the number of spatial modes is transferred to a second one of the number of spatial modes via the particular spatial mode, wherein the first one of the number of optical signals is transmitted via the second one of the number of spatial modes.
Integrated access network
The present invention is an optical terminal device comprising a signal modulator configured to generate a first signal modulated onto a first optical sideband of a first optical wavelength signal and a second signal modulated onto a second sideband of the first optical wavelength signal, the first signal being a different type than the second signal; a receiver configured to receive a third signal modulated onto the first optical sideband of a second optical wavelength signal and a fourth signal modulated onto a second sideband of the second optical wavelength signal, the third signal being a different type than the fourth signal; and a circulator coupled to the signal modulator and the receiver, wherein the circulator is configured to communicate with a node of an integrated network via an optical fiber. A remote node, a communication terminal, and a method of performing integrated network access are also disclosed.
Concurrent airborne communication methods and systems
Aircrafts or unmanned air vehicles flying near Earth are used as airborne communications towers or relays. Using techniques of ground based beam forming and wavefront multiplexing enhance the ability to coherently combine the power of the communication signals, and improve the signal-to-noise ratio.
Time synchronization system, management node, and time synchronization method
A time synchronization system comprises a time master, a time slave, and a management node which are coupled to one another via a plurality of networks. The time master transmits to the time slave a time packet at a given timing through at least one of the plurality of networks. The time slave has a time correcting part for receiving the time packet transmitted from the time master and for correcting time based on the received time packet. The management node has: a network switching determining part for determining whether to switch the network for transmitting a time packet to another of the plurality of networks; and a network switching notifying part for notifying, in a case where it is determined that the network for transmitting the time packet is to be switched, information for identifying the switched-to network to the time slave.
Multi-band wireless communication device with multiplexer and method of multiplexing multi-band wireless signals
An apparatus includes: a first multiplexer configured to allow bi-directional communication over a first plurality of multiplexed communication bands that each include a corresponding transmit band and a corresponding receive band, wherein none of the transmit bands of the first multiplexer have transmit frequencies that overlap with any receive frequencies of any of the receive bands of the first multiplexer; a second multiplexer configured to allow bi-directional communication over a second plurality of multiplexed communication bands that each include a corresponding transmit band and a corresponding receive band, wherein none of the transmit bands of the second multiplexer have transmit frequencies that overlap with any receive frequencies of any of the receive bands of the second multiplexer; and an electromechanical band switch configured to selectively connect the first and second multiplexers to a common antenna.
Methods of transmitting and receiving a media information file for HTTP streaming
Disclosed are methods of transmitting and receiving media information file for HTTP stream. Content is divided into segments, the segments are divided into segment sub groups, each of the divided segments grouping the segment sub groups, a meta media information file including information on a segment sub group is configured; and sub media information file including information on segments in a segment sub group is configured. When service initializes, the meta media information file is transmitted. When a transmission request for content is received, the sub media information file to which a playback request timing for content belongs is selected and transmitted by referring to the meta media information file, and then, a segment in a segment sub group corresponding to the sub media information file is transmitted. Thus, during HTTP streaming, initial transmission delay is reduced, and random access and trick mode playback are possible.
Digital mixer and patch setting method of digital mixer
In a digital mixer, when a patch of a certain channel is changed, values of parameters of one port which has been connected to the certain channel is applied as parameters of a newly connected port, thereby enabling to hand over parameters of the one port which have been set for the certain channel. Further, when a newly connected port is already connected to another channel, the digital mixer asks the user whether or not to apply the parameters of the one port.
Method and apparatus for launching a wave mode that mitigates interference
Aspects of the subject disclosure may include, for example, a system that performs operations including receiving electromagnetic waves on an outer surface of a transmission medium having a non-hybrid wave mode and a cutoff frequency, detecting a degradation of a signal quality of the electromagnetic waves, generating adjusted electromagnetic waves having a hybrid wave mode and a non-optical frequency range responsive to the detecting, and directing the adjusted electromagnetic waves having the hybrid wave mode and the non-optical frequency range to the outer surface of the transmission medium for guiding propagation of the adjusted electromagnetic waves without utilizing an electrical return path. Other embodiments are disclosed.
Circuit for realizing passivation of intelligent optical distribution interface disc in machine disc enable manner
Disclosed is a circuit for realizing passivation of an intelligent optical distribution interface disc in a machine disc enable manner, which relates to the field of optical communications. In the present invention, a distribution port is separated from distribution management, all management circuits on a distribution interface disc are moved out, and all control and management functions are achieved on a distribution management disc, to enable passivation of a distribution interface disc circuit, i.e. any active electronic devices such as integrated circuits, triodes, etc. which are easily damaged by static electricity and affected by fouling are not placed on the distribution interface disc any longer, and power lines are not introduced in the distribution interface disc. Using the present invention, no matter whether in a fusion-distribution integration or fusion-distribution separation design, during onsite construction, a distribution disc has both strong anti-static capability and fouling-resistant capability. When the fusion-distribution integration design is used, the device cost can be reduced, the device production process can be reduced, and the device performance and the distribution density can be increased. When the fusion-distribution separation design is used, even an optical fiber fusion splice point on the distribution disc generates failure, over-high requirements may not be put forward for maintenance and construction.
Planar lightwave circuit and optical receiver
A planar lightwave circuit and an optical receiver which reduce degradation in signal quality is provided.A planar lightwave circuit includes: a substrate with a straight groove formed therein; a signal light input port which is formed in the substrate and receives signal light; a first planar filter part which is fitted into the groove and separates the signal light into a signal light component including a first polarization state and that including a second polarization state; a second planar filter part which is fitted into the groove and separates the local oscillator light into a local oscillator light component including the first polarization state and that including the second polarization state; a first interference part formed in the substrate; a second interference part which is formed on a side of the substrate opposite to the side of the first interference part across the groove; a first waveguide which is connected to the signal light input port and also to a reflection surface of the first planar filter part; a second and a third waveguide; a fourth waveguide which is connected to the local oscillator light input port and also to a reflection surface of the second planar filter part; and a fifth and a sixth waveguide.
MIMO equalization optimized for baud rate clock recovery in coherent DP-QPSK metro systems
The present invention is directed to a MIMO equalization system and method, optimized for baud rate clock recovery in coherent symbol-spaced DP-QPSK Metro systems. According to this method, the Mueller & Muller timing function is extended to cope with controlled ISI induced signals, while decoupling between MIMO equalization and clock recovery loops, using a midpoint output of the equalizer for timing estimation, instead of its final output. At least a portion of controlled Inter-Symbol Interference (ISI) is kept intact and the controlled ISI is compensated by an MLSE, right after carrier timing synchronization.
Optical apparatus with multiple transmission power levels
Embodiments of the present disclosure are directed toward techniques and configurations for an optical apparatus to control optical power of the light source. In one embodiment, the apparatus may include a transmitter and receiver to transmit and receive optical signals over an optical communication channel, and a controller to cause the transmitter to transmit pulse signals at a first power level and detect a change in optical power in the channel, indicating a presence of a signal from another optical apparatus. The controller may confirm that the detected apparatus is capable of communications at a second power level (greater than the first level) and initiate data transmission at the second level. Upon detection of a failure in the channel, the controller may cause the transmitter to halt the data transmission and restart the pulse signals at the first power level. Other embodiments may be described and/or claimed.
Ethernet passive optical network over coaxial (EPoC) physical layer link and auto-negotiation
A PHY auto-negotiation and link up procedure for Ethernet Passive Optical Network Over Coax (EPOC) is provided. The procedure is compliant with the Ethernet Passive Optical Network (EPON) standard and can be used to bring an EPOC network to user traffic readiness. In addition, the procedure, or a variation thereof, can be used to enable periodic maintenance of the coaxial link of the EPOC network, thereby maintaining adequate communication conditions.
Integrated circuit device with field programmable optical array
Systems and methods are provided to improve flexibility of optical signal transmission between integrated circuit devices, and more specifically data utilization circuits. More specifically, the integrated circuit devices may include a data utilization circuit communicatively coupled to a field programmable optical array (FPOA). In some embodiments, the FPOA may convert an electrical signal received from the data utilization to an optical signal, route the optical signal to an optical channel, and multiplex the optical signal with other optical signals routed to the optical channel. Additionally or alternatively, the FPOA may de-multiplex a multiplexed optical signal based on wavelength, route an optical signal included in the multiplexed optical signal to an electrical channel, convert the optical signal into an electrical signal, and output the electrical signal to the data utilization circuit via an electrical channel. In some embodiments, the FPOA may improve flexibility by performing such functions without reconfiguring the data utilization circuit.
Switched pixel visible light transmitting method, apparatus and program
In a transmitting method that enables communication between various devices including devices other than lightings, a luminance change pattern is determined by modulating a visible light signal, a common switch for turning ON, in common, a plurality of light sources which are included in a light source group of a display and are each used for representing a pixel in an image is switched according to the luminance change pattern, and a first pixel switch for turning ON a first light source among the plurality of light sources included in the light source group is turned ON, to cause the first light source to be ON only for a period in which the common switch is ON and the first pixel switch is ON, to transmit the visible light signal.
A display device according to the present disclosure includes: a backlight control unit configured to divide the luminescence surface of the backlight into a plurality of areas, and, based on the image signal, (i) perform luminescence control in each of the plurality of areas and (ii) set off periods starting at different times for the plurality of areas. The backlight control unit performs luminescence control in a visible light communication area which is at least one area among the plurality of areas in a period in which the visible light communication signal is output, based on the visible light communication signal, instead of performing luminescence control based on the image signal, and performs the luminescence control based on the image signal, in the visible light communication area, in a period in which the visible light communication signal is not output.
Method, light module and receiving unit for light coding
A method for embedding data in light, wherein the method comprises the step of operating at least two light sources (A, B) arranged to emit light (101) having color coordinates (x, y) and luminous intensity (Y), wherein each light source is arranged to emit light (101a, 101b) which is distinguishable from the light of at least one other light source, and embedding data in the light emitted from the at least two light sources. The method further comprises the step of operating the at least two light sources such that the color coordinates of the light emitted from the at least two light sources are maintained over time within a first, bounded interval (115), and the luminous intensity of the light emitted from the at least two light sources is maintained over time within a second, bounded interval (116).
Method and apparatus for measuring quality parameters of optical transmission channel
The present invention discloses a method and an apparatus for measuring quality parameters of optical transmission channels. The apparatus comprises: a tunable optical filter for receiving an optical signal, performing wavelength or optical carrier demultiplexing on the optical signal, and out-of-band ASE noise suppression; an optical coherent receiver connected to the tunable optical filter, for performing polarization- and phase-diversity detection on the filtered optical signal and converting it into multiple lane baseband electrical signals; analog-to-digital converters for sampling and quantizing the multiple lane baseband electrical signals so as to convert the them into multiple lane digital signals; a digital signal processing module for processing the multiple lane digital signals to obtain quality parameters; and an display module for displaying the quality parameters. By the device according to an embodiment of the invention, real-time measurement of various key performance parameters of the 40 Gbps, 100 Gbps and extra-100 Gbps (for example, 200 Gbps, 400 Gbps and 1 Tbps) coherent polarization-multiplexed system is achieved simultaneously, especially the issue of real-time measurement of the in-service in-band OSNR is solved. Therefore, the network operation and maintenance are facilitated and the cost of network operation and maintenance is saved.
Method of calculating transmitter and dispersion penalty for predicting optical data link and signal quality
A method of calculating a transmitter and dispersion penalty for predicting optical link signal quality includes providing an optical link; capturing an averaged eye, using an optical test signal sequence to drive the transmitter with an oscilloscope receiver having an oscilloscope bandwidth as available; and from the averaged eye, capturing histograms A1; capturing a non-averaged eye using an optical test signal sequence to drive the transmitter, and from the non-averaged eye, capturing histograms B1; de-convolving histograms A1 from histograms B1; filtering waveform from step 1), convolve the filtered waveform from step 4) with the estimate of the noise from 3); and calculating “soft” TDP based on the probability distribution function.
Optical network connection termination on client facility failure
A method for operating an optical network (ON) using a control plane (CP), including: identifying, by the CP, a failure of a client facility connecting a network element of the ON and a client device; and terminating, by the CP and in response to identifying the failure, an optical connection through the ON for the client device.
Method for reporting channel state information, user equipment, and base station
Embodiments of the present invention provide a method includes: receiving a reference signal sent by a base station; selecting, based on the reference signal, a precoding matrix from a codebook, where a precoding matrix w included in the codebook is a product of three matrices being W1, Z, and W2, that is, W=W1ZW2, where both W1 and Z are block diagonal matrices, W1=a formula (I), Z=a formula (II), each of W1 and Z includes at least one block matrix, that is, NB≧1, and each column of each block matrix Zi in the matrix Z has the following structure formula (III); and sending a precoding matrix indicator (PMI) to the base station, where the PMI corresponds to the selected precoding matrix, and is used by the base station to obtain the selected precoding matrix w according to the PMI.
Hybrid virtual antenna mapping for multiple-input multiple-output system
Aspects for balancing power output on the plurality of antennas for the transmission of a transport block are disclosed. In accordance with the present disclosure, a transmitter may balance the power output on a plurality of transmit antennas in a multiple-input multiple-output (MIMO) system by having a precoded data block bypass a virtual antenna mapping of the overhead channels (e.g., control channels). Additionally or alternatively, the transmitter may balance the power output on the plurality of transmit antennas by applying an inverse mapping parameter during the precoding process to the transport block to generate a plurality of inverse mapped precoded data blocks. In some examples, the inverse mapping parameter may be an inverse of the mapping parameter. Thus, in accordance with the present disclosure, precoding a transport block may include selecting a precoding weight for each of the plurality of antennas from an unrestricted precoding weight set.
Closed loop MIMO harmonized feedback
The subject matter disclosed herein provides methods and apparatus for closed loop operation of a wireless system implementing multiple input multiple output (MIMO). In one aspect, there is provided a method. The method may include receiving a payload including channel estimation information. Moreover, one or more bits of the payload may be inserted into a subset of the tiles of a slot. The slot including the subset of the tiles carrying the one or more bits of the payload may be provided as part of a closed loop MIMO-based system. Related systems, apparatus, methods, and/or articles are also described.
Supporting distinct single-input single-output (SISO) services in a multiple-input multiple-output (MIMO) baseband circuit, particularly suited for a distributed antenna system (DAS)
One embodiment of the disclosure relates to supporting distinct single-input single-output (SISO) services in a multiple-input multiple-output (MIMO) baseband circuit, particularly suited for a distributed antenna system (DAS). In this regard, in one aspect, two communication paths in the MIMO baseband circuit are reconfigured to distribute two distinct SISO signals. A quadrature modulator modulates the two distinct SISO signals to two different radio frequency (RF) bands, respectively, based on a modulation frequency. In another aspect, the two or more distinct SISO signals are provided to the quadrature modulator using two intermediate frequencies (IFs) that are determined based on the center frequencies and bandwidths of the two different RF bands. By reconfiguring the MIMO baseband circuit to distribute the two distinct SISO signals, it is possible to retro-support new wireless communication services and/or new RF bands in existing DAS installations without replacing the MIMO baseband circuit.
Wireless transmitting and receiving device and method
A wireless device, method, and signal for use in communication of a wireless packet between transmitting device and a wireless receiving device via a plurality of antennas, wherein a signal generator generates wireless packet including a short-preamble sequence used for a first automatic gain control (AGC), a first long-preamble sequence, a signal field used for conveying a length of the wireless packet, an AGC preamble sequence used for a second AGC to be performed after the first AGC, a second long-preamble sequence, and a data field conveying data. The AGC preamble sequence is transmitted in parallel by the plurality of antennas.
Wireless power and data transmission
Communications between a base station and a transponder that is powered by the base station are effected using a signal differentiation approach. A first radio frequency signal is communicated between the base station and the transponder to power the transponder, with the first radio frequency signal including noise and data for authenticating communications between the base station and the transponder. A second radio frequency signal is communicated between the base station and the transponder, with the second radio frequency signal including data for authenticating communications between the base station and the transponder. The detection of noise presented via the first radio frequency signal is mitigated while detecting data in the second radio frequency signal, via signal differentiation.
Wireless power transmitting apparatus and method thereof
Disclosed herein are a wireless power transmitting apparatus and method of wirelessly transmitting a power to a power receiving apparatus by selectively using one central coil and two side coils, wherein in the case in which each of the one central coil and the two side coils transmits the power, a reception power amount received by the power receiving apparatus is judged, at least one of the one central coil and the two side coils is selected as a power transmitting coil that is to transmit the power by the judged reception power amount, and the power is wirelessly transmitted to the power receiving apparatus through the selected power transmitting coil.
Signal transmission arrangement with a transformer and signal transmission method
A signal reception arrangement includes a receiver circuit having a receiver input configured to be coupled to a secondary winding of a transformer of a first communication channel, a first output for providing a data output signal, and a second output. The receiver circuit is configured to evaluate a signal level at the receiver input and to detect a signal transmission when the signal level reaches a given threshold, and generate a feedback signal dependent on a detection of the signal transmission.
Repeater and methods for use therewith
Aspects of the subject disclosure may include, for example, a repeater device having a first coupler to extract downstream channel signals from first guided electromagnetic waves bound to a transmission medium of a guided wave communication system. An amplifier amplifies the downstream channel signals to generate amplified downstream channel signals. A channel selection filter selects one or more of the amplified downstream channel signals to wirelessly transmit to the at least one client device via an antenna. A second coupler guides the amplified downstream channel signals to the transmission medium of the guided wave communication system to propagate as second guided electromagnetic waves. Other embodiments are disclosed.
Type 1 and type 2 hopping for device-to-device communications
Methods, systems, and devices are described for coordinating a device to device (D2D) hopping scheme with a wide area network (WAN) hopping scheme. In one aspect, a method may include identifying, by a base station, a WAN frequency hopping scheme. The base station may coordinate a D2D frequency hopping scheme a D2D enabled user equipment (UE) with the identified WAN frequency hopping scheme, and communicate the D2D frequency hopping scheme to the D2D enabled UE. In one aspect, the D2D frequency hopping pattern may apply to retransmissions between two D2D enabled UEs. Another method may include receiving, by a D2D enabled UE, a D2D frequency hopping scheme from a base station, where the D2D frequency hopping scheme is coordinated with a WAN frequency hopping scheme. The D2D enabled UE may transmit at least one message to a second D2D enabled UE according to the D2D frequency hopping scheme.
Dynamic trigger algorithm for antenna switch diversity
Methods, systems, and devices are described for triggering an antenna switch. A settling time may be identified, and the antenna switch may be delayed based at least in part on the identified settling time. The settling time may include an estimated delay in reception attributable to settling following the antenna switch.
High linearity RF diplexer
A first RF diplexer, which includes a first hybrid RF coupler, a second hybrid RF coupler, a first RF filter, and a second RF filter, is disclosed. The first hybrid RF coupler has a first main port, a first in-phase port, a first quadrature-phase port, and a first isolation port, which is coupled to a primary RF antenna. The second hybrid RF coupler has a second main port, a second in-phase port, and a second quadrature-phase port. The first RF filter is coupled between the first in-phase port and the second in-phase port. The second RF filter is coupled between the first quadrature-phase port and the second quadrature-phase port.
Case for cooling an electronic device via an endothermic reaction
A case for cooling a portable electronic device, the case including a housing and a cartridge. The housing holds the electronic device and has a cartridge compartment for retaining the cartridge. The cartridge includes sets of compartments for retaining substances configured to generate an endothermic reaction when mixed or combined. Pairs of compartments are separated by a divider configured to be selectively breached. The duration of the cooling effect may be extended by periodically breaching dividers of additional compartment pairs. The magnitude of the cooling effect may be increased by breaching multiple compartment pairs at once. The case may also include electronic components for monitoring the temperature of the electronic device and automatically initiating an endothermic reaction when the temperature reaches a predetermined threshold.
Output driver architecture with low spur noise
In one embodiment, an integrated circuit includes: a first input pad to receive a radio frequency (RF) signal; a radio receiver to process the RF signal and output a digitally processed signal; an analog filter to receive a digital signal via an input signal path and output a drive signal via an output signal path; and a first output pad coupled to the output signal path to output a filtered digital signal based on the drive signal.
Method and apparatus for mitigating interference between wireless local area network (WLAN) communications and cellular communications
A wireless device including a first receiver and a second receiver. The first receiver is configured to receive a first signal transmitted on a first network using a first communication standard, and generate, in response to a signal strength of the first signal being greater than or equal to a predetermined threshold, first information about the first signal based on a first portion of the first signal. The second receiver is configured to receive a second signal transmitted on a second network using a second communication standard, and suppress interference from the first signal based on the first information about the first signal. The first communication standard is different from the second communication standard. The first receiver and the second receiver are co-located in the wireless device.
Digital pre-distortion systems in transmitters
Various digital pre-distortion systems for use in transmitters are disclosed. The digital pre-distortion system comprises an observing path, which performs either undersampling or radio frequency sampling of the output of a power amplifier. Undersampling may be performed at a rate, which causes aliasing to occur in the undersampled frequency domain. Both undersampling and radio frequency sampling reduces the complexity of the digital pre-distortion system by removing any down mixing modules or anti-aliasing modules, while maintaining reasonable performance of the digital pre-distortion systems.
Method and system for 60 GHz distributed communication
Methods and systems for 60 GHz distributed communication are disclosed and may include generating IF signals from baseband signals in a computing device with wireless capability. The IF signals may be communicated to remote RF modules within the computing device via coaxial lines. The IF signals may be up-converted to RF signals and transmitted via the RF modules. The IF signals in the coaxial lines may be tapped via taps coupled to the RF modules. The baseband signals may comprise video data, Internet streamed data, and/or data from a local data source. The RF signals may be communicated to a display device. Control signals for the RF devices may be communicated utilizing the coaxial lines. One or more of the RF devices may be selected based on a direction to a receiving device. The remote RF devices may comprise mixers. The RF signals may comprise 60 GHz signals.
Reliable data reading with data set screening by error injection
According to one embodiment, a method for processing data includes determining whether a PES is invalid while reading data from a magnetic medium using at least one data channel, determining whether a PES value is above a first predetermined threshold when the PES is valid, injecting error bits into a data stream in place of corresponding bits of decoded data when the PES is invalid and/or the PES value is above the first predetermined threshold, decoding the data using a run-length limited (RLL) decoder to produce the decoded data based on the data from the magnetic medium, and outputting the data stream. Other methods, systems, and tape drives for processing data using error injection are described in more embodiments.
Compression of integer data using a common divisor
According to one embodiment of the present invention, a system for compressing data determines a common divisor for a set of values comprising integers. The system divides each value within the set of values by the common divisor to produce reduced values, and represents the set of values in the form of data indicating the common divisor and the reduced values. Embodiments of the present invention further include a method and computer program product for compressing data in substantially the same manners described above.
Digital-to-analog converter with switching elements controlled by a microcontroller
A digital-to-analog converter (DAC) is described. The DAC comprises a resistor having a resistance R and a capacitor having a capacitance C. The DAC comprises a first switching element configured, in response to a first control signal, to couple the capacitor to a first rail via a path having a resistance less than R and a second switching element configured, in response to a second control signal, to couple the capacitor to the first rail through the resistor. The DAC also comprises a third switching element configured, in response to a third control signal, to couple the capacitor to a second rail (8) via a path having a resistance less than R and a fourth switching element configured, in response to a responsive to a fourth control signal, to couple the capacitor to the second through the resistor. The capacitor can be quickly charged or discharged over a period less than RC or less than 0.7 RC. The DAC may comprise a first control element configured to switch on the second switching element before switching on the first switching element and a second control element configured to switch on the fourth switching element before switching on the third switching element.
A/D converter circuit, pipeline A/D converter, and wireless communication device
An A/D converter circuit has an amplifier circuit to amplify an input signal and output a first amplification signal and a second amplification signal, the second amplification signal having an amplification error smaller than that in the first amplification signal, a first sampling circuit to sample the first amplification signal, a first A/D converter to perform A/D conversion on the first amplification signal sampled by the first sampling circuit and output a first digital signal, a second sampling circuit to sample the second amplification signal, a D/A converter to perform D/A conversion on the first digital signal and output a first analog signal, a subtracter to subtract the first analog signal from the second amplification signal sampled by the second sampling circuit and output a second analog signal, and a second A/D converter to perform A/D conversion on the second analog signal and output a second digital signal.
Symmetrical capacitor arrays succesive approximation register (SAR) analog-to-digital converter (ADC)
Analog-to-digital converter (ADC) circuitry includes a first binary-weighted capacitor array having a total capacitance of 2n-2C. The value of n represents number of bits of a digital signal that represents an analog signal. The ADC circuitry also includes a second binary-weighted capacitor array having a total capacitance of 2n-2C. In addition to that, the ADC circuitry further includes a comparator circuit having first and second terminals. The first terminal is coupled to the first binary-weighted capacitor array, and the second terminal is coupled to the second binary weighted capacitor array. The switching circuit within the second binary-weighted capacitor array may be configurable to couple a largest capacitance capacitor within the second binary-weighted capacitor array from remaining capacitors within the second binary weighted capacitor array.
Method and device for controlling single-phase phase-locked loop
The present disclosure provides a single-phase PLL controlling method and a single-phase PLL controlling device. The device includes a first FIR filter, a second FIR filter and a Park converter. The first FIR filter and the second FIR filter are configured to perform FIR filtration on a collected power grid voltage signal so as to acquire filtered signals, and output the filtered signals to the Park converter. A filtered signal Vα acquired by the first FIR filter and a filtered signal Vβ acquired by the second FIR filter form a set of virtual two-phase signals in an αβ coordinate system. The Park converter is configured to perform Park conversion on the filtered signal Vα and the filtered signal Vβ, so as to acquire a set of two-phase signals Vd and Vq in a dq coordinate system.
Wideband direct modulation with two-point injection in digital phase locked loops
A digitally controlled oscillator (DCO) modulation apparatus and method provides a wideband phase-modulated signal output. An exemplary modulator circuit uses an oscillator in a phase-locked loop. The circuit receives a wrapped-phase input signal, unwraps the wrapped-phase input signal to generate an unwrapped-phase signal, and differentiates the unwrapped-phase signal. The wrapped-phase input signal and the differentiated unwrapped-phase signal are both injected into a feedback loop of the modulator circuit. The feedback loop may include a multi-modulus frequency divider with a frequency divisor that is temporarily incremented or decremented to cancel out abrupt phase jumps associated with the wrapped-phase to unwrapped-phase conversion.
PLL circuit and operation method
A PLL circuit having a desired performance is provided. A PLL circuit (100) includes a phase comparator (11) that detects a phase difference; a voltage control oscillator (12) that generates a signal to be returned to the phase comparator (11); and a loop filter (10) that is disposed between the phase comparator (11) and the voltage control oscillator (12) and includes an adder (50) that adds outputs from a proportional path (20), a first integral path (40), and a second integral path (30). The second integral path (30) and the first integral path (40) each include a cumulative adder, a ΔΣ modulator, and an RC filter. The lock detector (36) detects a lock state, controls a gain of the first cumulative adder (42) and a bandwidth of the first RC filter (45), and switches an input to a second ΔΣ modulator (33) to a fixed value.
All digital phase locked loop
An all-digital phase-locked loop (AD-PLL) and related methods and computer readable medium are provided. The AD-PLL comprises a reference phase generator for receiving a digital signal and splitting the digital signal into an integer part and a fractional part, an estimator block for estimating a control signal, and a digital-to-time converter for receiving the estimated control signal and a reference clock signal and for deriving a delayed reference clock signal. The AD-PLL also includes a time-to-digital converter for receiving the delayed reference clock signal and a desired clock signal phase, and for deriving a fractional phase error. The estimator block receives the fractional phase error and determines the estimated control signal by correlating the fractional phase error with the fractional part, yielding a correlated signal, multiplying the correlated signal with its absolute value, and integrating the outcome of the multiplying to obtain the estimated control signal.
A semiconductor device may include a delay line including a first group of unit delay cells and a second group of unit delay cells. The first group of unit delay cells and the second group of unit delay cells may be configured for delaying a phase of a clock by a unit cycle of a reference frequency. The reference frequency may serve as a reference for distinguishing between a first frequency and a second frequency. The semiconductor device may include a reservoir capacitor located adjacent to one or more of the unit delay cells of the first group. Only the first group of the unit delay cells may be used to delay the phase of the clock.
High-voltage tolerant input voltage buffer circuit
Described is an apparatus comprising a first node to receive signal; a second node to provide an output signal; a voltage limiter circuit operating under a first supply voltage, the voltage limiter coupled to the first and the second nodes; and a bypass circuit operating under the first supply voltage, the bypass circuit coupled to the voltage limiter circuit and is capable of being enabled to electrically short the first node to the second node.
Resistance calibration method and related calibration system
A resistance calibration method for a first resistor of a first module includes performing resistance calibration on a calibration unit of a second module, wherein the first module is connected to the second module via a pad coupled to the first resistor and the calibration unit is coupled to the pad; obtaining a resistance value of the calibration unit after the resistance calibration; and calibrating a resistance value of the first resistor according to the resistance value of the calibration unit.
Reference voltage circuits and on-die termination circuits, methods for updating the same, and methods for tracking supply, temperature, and/or process variation
Devices and methods for operating devices are provided, such as those that include a memory device having a reference voltage (Vref) circuit that has substantially similar paths and impedances as an on-die termination (ODT) circuit. One such Vref circuit tracks supply variations and temperature changes in a manner substantially similar to the ODT circuit. In some embodiments an update scheme is provide for the ODT circuit and the Vref circuit to enable simultaneous update of each circuit through the same digital codes.
Use of relative permittivity in different materials to enhance capacitive switch sensitivity
In the present invention, a capacitance-type switch is provided with an operation plate and an electrode plate. The operation plate forms operation surfaces operated by the touch of a fingertip F (operation body) of a user. The electrode plate is disposed on the side of the operation plate opposite the operation surfaces. Furthermore, the capacitance-type switch is turned on and off in response to the change in capacitance caused between the fingertip F and the electrode plate. In addition, a high-permittivity material is disposed in an outer circumferential section of the electrode plate, the high-permittivity material having a higher permittivity than the operation plate. It is possible to improve the sensitivity of the capacitance-type switch while minimizing malfunctioning.
Well tool having optical triggering device for controlling electrical power delivery
A method of controlling electrical power delivery to a well tool can include transmitting trigger light via an optical waveguide to a circuit in a well, and the circuit delivering the electrical power to the well tool in response to the circuit receiving the trigger light. A circuit for supplying electrical power to at least one well tool can include a photodiode which receives light from an optical waveguide in a well, a voltage increaser which increases a voltage output by the photodiode, and an electrical energy storage device which receives electrical energy via the voltage increaser, whereby the electrical power can be supplied to the downhole well tool from the storage device.
Integrated circuit with precision current source
An integrated circuit with precision current source includes a first MOSFET, a second MOSFET, an op-amp and a resistor formed on a common semiconductor substrate. The first MOSFET is characterized by a first multiplier (×M1) and the second MOSFET is characterized by a second multiplier (×M2) where a ratio of ×M2 to ×M1 is greater than one. An inverting input of the op-amp is coupled to a drain of the first MOSFET and an output of the op-amp is coupled to a gate of the first MOSFET. A negative feedback circuit limits a rise in output current under low output voltage conditions.
Apparatus for performing signal driving with aid of metal oxide semiconductor field effect transistor
An apparatus for performing signal driving with aid of MOSFET and an associated IC are provided, where the apparatus includes a PMOSFET coupled between a predetermined voltage level and a terminal, and further includes an NMOSFET coupled between the predetermined voltage level and the terminal. The PMOSFET is arranged for selectively driving a signal that passes through the terminal. In addition, the NMOSFET is arranged for selectively driving the signal. Additionally, the apparatus further includes another NMOSFET coupled between another predetermined voltage level and the terminal, wherein the other NMOSFET is arranged for selectively driving the signal. More particularly, the PMOSFET, the NMOSFET, and the other NMOSFET does not drive the signal at the same time. For example, each of the PMOSFET, the NMOSFET, and the other NMOSFET selectively drives the signal to have one of a plurality of logical states.
System and method for monitoring voltage across isolation barrier
Systems and methods relating to voltage monitoring across isolation barriers are disclosed herein. In one example embodiment, an isolation system includes a low voltage circuit portion including a first control logic portion, and a high voltage circuit portion including a second control logic portion and an analog-to-digital converter portion. The system further includes a first transistor device having a first terminal coupled at least indirectly to a first connection having a first voltage level and a second terminal coupled at least indirectly to a second connection having a second voltage level. The first control logic portion governs provision of an output signal generated based at least indirectly upon the second voltage level. Due to a galvanic barrier, the output signal can be provided for receipt by another device in a manner that avoids exposure of that device to an undesirably high current or power level.
Drive device for insulated-gate semiconductor element, and power converter
A driver circuit for turning ON and OFF one of two parallel-connected insulated-gate semiconductor elements includes a voltage control circuit that controls a level of a power supply voltage in response to a detected element temperature of the one semiconductor element, a constant current supply section, responsive to a drive signal, for supplying a constant current to a gate of the one semiconductor element to turn the one semiconductor element ON, the power supply voltage being supplied to the constant current supply section from the voltage control circuit, and a discharge circuit, responsive to the drive signal, for discharging an electric charge accumulated in the gate to turn the one semiconductor element OFF.
Method and apparatus improving gate oxide reliability by controlling accumulated charge
A method and apparatus are disclosed for use in improving the gate oxide reliability of semiconductor-on-insulator (SOI) metal-oxide-silicon field effect transistor (MOSFET) devices using accumulated charge control (ACC) techniques. The method and apparatus are adapted to remove, reduce, or otherwise control accumulated charge in SOI MOSFETs, thereby yielding improvements in FET performance characteristics. In one embodiment, a circuit comprises a MOSFET, operating in an accumulated charge regime, and means for controlling the accumulated charge, operatively coupled to the SOI MOSFET. A first determination is made of the effects of an uncontrolled accumulated charge on time dependent dielectric breakdown (TDDB) of the gate oxide of the SOI MOSFET. A second determination is made of the effects of a controlled accumulated charge on TDDB of the gate oxide of the SOI MOSFET. The SOI MOSFET is adapted to have a selected average time-to-breakdown, responsive to the first and second determinations, and the circuit is operated using techniques for accumulated charge control operatively coupled to the SOI MOSFET. In one embodiment, the accumulated charge control techniques include using an accumulated charge sink operatively coupled to the SOI MOSFET body.
Short circuit protection circuit, semiconductor device and electronic machine
The present disclosure provides a short circuit protection circuit with small area and less current-consuming. A short circuit protection circuit 14 includes a transistor M11 and a resistor R11, serially connected between a source and a drain of an output transistor 11 (transistor M10); and a transistor M12, connected between the source and a gate of the output transistor 11 and forming a current mirror together with the transistor M11.
Comparator circuit, comparator circuit control method, A/D conversion circuit, and display apparatus
A comparator circuit includes a differential circuit unit which detects a difference between two input signals, a current supply unit which supplies a current to the differential circuit unit, and a control unit which detects an operation timing of the differential circuit unit and controls the current supplied to the differential circuit unit by the current supply unit according to a detection result thereof.
Efficient high voltage square wave generator
This disclosure generally provides a system, active input device, and method for generating an amplified square wave signal based on an input signal. The method comprises generating a pulse signal based on the input signal, and driving a switching signal based on the pulse signal to control a first switch. A pulse width of the pulse signal is adaptively controlled using a control signal generated based on the amplified square wave signal. An output terminal of the first switch is coupled with a second switch, and the switching signal controls current entering into the second switch. The method further comprises driving the input signal to control a third switch coupled with the second switch. The amplified square wave signal is generated at the second output terminal based on the switching signal and on the input signal.
Phase interpolator and method of implementing a phase interpolator
A phase interpolator implemented in an integrated circuit to generate a clock signal is described. The phase interpolator comprises a plurality of inputs coupled to receive a plurality of clock signals; a plurality of transistor pairs, each transistor pair having a first transistor coupled to a first output node and a second transistor coupled to a second output node, wherein a first clock signal associated with the transistor pair is coupled to a gate of the first transistor and an inverted first clock signal associated with the transistor pair is coupled to a gate of the second transistor; a first active inductor load coupled to the first output node; and a second active inductor load coupled to the second output node.
A semiconductor device includes a transistor, a diode, a sense transistor, a sense diode, a resistor, and a clamp circuit. The diode is connected in inverse parallel to the transistor. The resistor is connected at one end of the resister to an emitter of the sense transistor and an anode of the sense diode, and is connected at the other end of the resister to an emitter of the transistor and an anode of the diode. The clamp circuit is configured to clamp a voltage that is generated in the resistor when a sense diode current flows. A ratio of a sense diode current to a current flowing to the diode is larger than a ratio of a sense current to a current flowing to the transistor.
Speed booster for comparator
Representative implementations of devices and techniques provide a speed increase to a comparator circuit. An active clamp device may be positioned between an input stage and an output stage of the comparator, limiting the voltage range of the output of the first stage.
A sampling circuit includes a first latch, a second latch and a signal transition detector. The first latch is disposed on an upstream side of a logic circuit. The second latch is disposed on a downstream side of the logic circuit. The first latch and the second latch respectively switch to opposite states of an opaque state or a transparent state according to trigger signals generated by a reference clock and a control clock. The signal transition detector is configured for detecting whether the signal outputted by the logic circuit is in error or not and outputting a corresponding control clock. The above-mentioned sampling circuit can delay switching the second latch to the opaque state and switching the first latch to the transparent state to correct sampling when a timing error occurs.
Frequency tuning for LC circuits
Apparatus and methods are disclosed related to tuning a resonant frequency of an LC circuit. In some implementations, the LC circuit can be embodied in a low noise amplifier (LNA) of a receiver. The receiver can include a component configured to generate an indicator of received signal strength indication (RSSI) of a radio frequency (RF) signal received by the receiver. A control block can adjust the resonant frequency of the LC circuit based at least in part on the indicator of RSSI. As another example, the receiver can include an oscillator, such as a VCO, separate from the LC circuit that can be used to tune the resonant frequency of the LC circuit. These apparatus can compensate for variation in a zero imaginary component of an impedance across the LC circuit.
Acoustic wave filter with enhanced rejection
A narrow-band acoustic filter comprises an input and an output, and at least one acoustic resonator pair coupled between the input and the output. Each of the acoustic resonator pair(s) comprises at least one in-line acoustic resonator and in-shunt acoustic resonator that operate together to create a nominal passband. The acoustic filter further comprises at least one capacitive element in parallel with one of the in-line acoustic resonator and the in-shunt acoustic resonator of each of the acoustic resonator pair(s), thereby sharpening one of a lower edge and an upper edge of the nominal passband.
Filter device having a first inductance in a chip substrate and a second inductance in a mounting substrate
A filter device with a ladder circuit configuration includes series arm resonators and parallel arm resonators, a filter component mounted on a mounting substrate and including a chip substrate and an elastic wave filter chip, a circuit configuration in which a plurality of series arm resonators and parallel arm resonators are defined by the elastic wave filter chip, and inductances are connected between ground-potential-side end portions of the plurality of parallel arm resonators and a ground potential, and in which at least one of the plurality of inductances is provided in the chip substrate and a remaining at least one inductance is provided in the mounting substrate.
Method and apparatus for adapting a variable impedance network
The present disclosure may include, for example, a tunable capacitor having a decoder for generating a plurality of control signals, and an array of tunable switched capacitors comprising a plurality of fixed capacitors coupled to a plurality of switches. The plurality of switches can be controlled by the plurality of control signals to manage a tunable range of reactance of the array of tunable switched capacitors. Additionally, the array of tunable switched capacitors is adapted to have non-uniform quality (Q) factors. Additional embodiments are disclosed.
Systems and methods to dynamically calibrate and adjust gains in a direct conversion receiver
Method embodiments are provided herein for dynamically calibrating and adjusting a direct conversion receiver system. One embodiment includes applying one or more gain control signals to one or more gain elements of a receiver system, where the applying one or more gain control signals results in a gain change to the receiver system; in response to the gain change, determining whether the receiver system exhibits a DC (direct conversion) offset; and in response to a determination that the receiver system exhibits the DC offset, applying one or more DC offset correction control signals to one or more gain elements of the receiver system, where the one or more DC offset correction signals are configured to correct the DC offset.
A converter including: an amplifier having first and second input terminals and an output terminal, the first input terminal configured to receive a reference voltage; an array of resistors configured to generate a tuning voltage; and a first plurality of switches coupled to the second input terminal of the amplifier and the array of resistors, the first plurality of switches configured to adjust a gain of the amplifier by selecting at least one resistor in the array of resistors to connect to the second input terminal of the amplifier.
Process for adjusting the sound volume of a digital sound recording
The present invention relates to a process for adjusting the sound volume of a digital sound recording characterised in that it comprises: a step consisting of determining, in absolute values, for a recording, the maximum amplitude values for sound frequencies audible for the human ear, a step consisting of calculating the possible gain for a specified sound level setting, between the maximum amplitude value determined above and the maximum amplitude value for all frequencies combined, a step consisting of reproducing the recording with a sound card by automatically adjusting the amplification gain level making it possible to obtain a sound level for the recording of a specified value so that it corresponds to the gain calculated for this recording.
Method for an adaptive transconductance cell utilizing arithmetic operations
A first transconductance cell having a differential input voltage ΔV1 and a forced output current ΔI1, has a bias set by a feedback loop. A second transconductance cell having a differential input voltage ΔV2 and using the same biasing as the first cell has analytically identical transconductance. The second transconductance cell produces an output current ΔI2 dependent on the product of the output current ΔI1 of the first transconductance cell and the quotient of the second differential input voltage ΔV2, and the first differential input voltage ΔV1. The adaptive transconductance cells can be used to generate mathematic functions such as multiplication and division.
A differential amplifier includes an amplifying stage that outputs an output signal by amplifying an input signal with a gain set by a control signal, and an adjusting stage that stabilizes a DC level of the output signal. The amplifying stage includes a first source supplying a first current, and a load, and determines a ratio of a current flowing through the load to the first current depending on the input signal and the control signal, and generates the output signal from a voltage drop of the load. The adjusting stage includes a second source supplying a second current, and a monitor resistor, and generates a monitor current divided from the second current by the ratio, and duplicates the DC level as a voltage drop of the monitor resistor caused by the monitor current, and controls the first current source and the second current source depending on the DC level.
Apparatus and methods for paralleling amplifiers
Provided herein are apparatus and methods for low distortion composite amplifiers with high load current. In certain configurations, a composite amplifier can be a closed loop system which includes two or more amplifiers such that one or more amplifiers can provide an output current to a load while one or more amplifiers can control an output voltage to be proportional to an input voltage. The loop gain can be proportional to the product of the individual amplifier gains and to a noise gain network function. In this way the composite amplifier can maintain low distortion for heavier loads and for load currents which exceed the normal load current operation of a single amplifier.
Low noise amplifier
A low noise amplifier includes a T-type circuit, a first amplification module and a second amplification module. The T-type circuit is adapted to receive an input signal from a signal source, filters the input signal to generate a filtered signal, and is configured such that an equivalent input impedance seen into the T-type circuit matches an equivalent output impedance seen into the signal source. The first amplification module is coupled to the T-type circuit for receiving the filtered signal therefrom, and amplifies the filtered signal to generate an amplified signal. The second amplification module is coupled to the first amplification module for receiving the amplified signal therefrom, and amplifies the amplified signal to generate an output signal.
Balanced Doherty power amplifier circuit and radio transmitter
A balanced Doherty power amplifier circuit and a radio transmitter is provided. The circuit includes a first peak amplifier, where an input end of the first peak amplifier is connected to a first input end of the circuit, and a first mean amplifier, where an input end of the first mean amplifier is connected to a second input end of the circuit, and an output end of the first mean amplifier is connected to an input end of a first matching unit. The circuit also includes a second peak amplifier, where an input end of the second peak amplifier is connected to the first input end of the circuit; and a second mean amplifier, where an input end of the second mean amplifier is connected to the second input end of the circuit, and an output end of the second mean amplifier is connected to an input end of the second matching unit.
A power amplifier includes a power splitter that splits a first signal into a second signal and a third signal delayed from the second signal by about 90°, a first amplifier that outputs a fourth signal by amplifying the second signal when a power level of the first signal equals/exceeds a first level, a second amplifier that outputs a fifth signal by amplifying the third signal when the power level of the first signal equals/exceeds a second level higher than the first level, a first phase shifter that receives the fourth signal and outputs a sixth signal delayed from the fourth signal by about 45°, a second phase shifter that receives the fifth signal and outputs a seventh signal advanced from the fifth signal by about 45°, and a combining unit that outputs an amplified signal of the first signal by combining the sixth and seventh signals.
A transceiver comprising a tank circuit, a variable differential conductance, VDC, coupled to the tank circuit, and a variable resistance coupled to the VDC is disclosed. The variable resistance is arranged to bias the VDC into a region of positive differential conductance during a first state of operation of the transceiver, and bias the VDC into a region of negative differential conductance during a second state of operation of the transceiver.
Charge pump circuit
When a voltage difference between a raised output voltage vcp and an input voltage vin is larger than a set voltage value, based on a added-on voltage vup detected by a voltage monitor 3 or a current iu passing through the voltage monitor 3, the clock generator controller 4 is activated. Then the clock generator controller 4 draws in a frequency control current iw from a clock generator 1 side, switches the frequency Fclk of a clock signal CLK generated by the clock generator 1 from a first frequency, which is comparatively high, to a second frequency, which is one or more digits lower than the first frequency, and applies the clock signal CLK to the voltage raiser 2. The voltage raiser 2 saves power by performing voltage raising (charge pumping) at the second frequency.
Calculation of MOSFET switch temperature in motor control
Systems and techniques are described for monitoring the operating temperature of one or more circuit elements, such as a metal oxide field effect transistor (MOSFET) switch, where the circuit element is used to control at least one phase of an electric motor. The systems and techniques may calculate temperature by determining at least two electrical signals from the circuit element taken at least two different times. This results in an accurate temperature calculation without requiring precise knowledge of the particular characteristics of each respective circuit element.
Method and device for controlling an electric motor propulsion unit with decoupled controls
A method of controlling an electric motor including a rotor and a stator, sensors for measuring currents flowing in the rotor and in the stator, a mechanism determining setpoints of current, and a mechanism processing the signals from the measurement sensors, the method including: determining intermediate signals by a transformation according to which stator voltages and rotor voltages of the electric motor are expressed in a decoupled reference system as a function of the signals received from the processing means, and determining signals for regulating voltage as a function of the currents flowing in the rotor and in the stator of the electric motor satisfying the setpoints of current as a function of the intermediate signals obtained by transformation.
Frequency converter parameter optimization
A method is provided for optimizing a parameter used in a frequency converter connected to an electrical rotating machine. The method includes identifying a parameter of the machine using electrical quantities, the identified parameter being used in the frequency converter and being identified in a first operating point, providing an electro-mechanical model of the rotating electrical machine to the frequency converter, and calculating when a processor capacity of the frequency converter is available, (i) a state of the rotating electrical machine in the first operating point using a finite element method with the electro-mechanical model of the rotating electrical machine, (ii) a state of the rotating electrical machine in a selected operating point using the finite element method with the electro-mechanical model, correcting the calculated state of the rotating electrical machine, and calculating, from the corrected state, parameter(s) of the electrical machine to be used in the frequency converter.
Lightup prevention using multi-layer ceramic fabrication techniques
In accordance with this disclosure, there are provided several inventions, including an electrostatic chuck apparatus comprising multiple layers with cutouts that form a labyrinth structure which defined a path for cooling or heating gas. The structure prevents particles from accelerating such that they form unwanted lightup in the gas flow path.
Embodiments of electrostatic chucks are provided herein. In some embodiments, an electrostatic chuck for retaining a substrate includes a base plate, a ceramic plate, supported by the base plate, having a substrate supporting surface, a first plurality of electrodes disposed within the ceramic plate having a first polarity, and a second plurality of electrodes disposed within the ceramic plate having a second polarity opposite from the first polarity, wherein the first and second plurality of electrodes are independently controllable to provide a desired chucking power and frequency.
DC-to-AC conversion apparatus and method of operating the same
A DC-to-AC conversion apparatus converts a DC input power source to a three-phase AC output power source. The DC-to-AC conversion apparatus includes an input capacitor assembly, a first conversion circuit, a second conversion circuit, and a control circuit. The input capacitor assembly is connected to the DC input power source, and has a neutral point. The neutral point is connected to a first phase sequence of the AC output power source. The first conversion circuit is connected a second phase sequence and a third phase sequence. The second conversion circuit is connected to the first phase sequence, the second phase sequence, and the third phase sequence. The control circuit generates a plurality of control signals to respectively control the first conversion circuit and the second conversion circuit, thus converting the DC input power source into the three-phase AC output power source.
Power supply device
In a power supply device the bridge circuit is configured such that a plurality of series circuits of two inverse parallel connection circuits of a semiconductor switch and a diode are connected in parallel. The power supply device includes a control unit configured to control the semiconductor switch such that a voltage between AC terminals of the bridge circuit becomes a zero voltage only during a prescribed time period before and after two zero crossing points in one cycle of the input current and such that the voltage becomes a positive-negative voltage in which the output voltage is a peak current value during other time periods. Consequently, a power factor of the power receiving circuit is improved and a loss of an entire device is inhibited, and a size and a cost of the entire device may be reduced.
Active rectifier and regulator circuit
The various embodiments described herein include systems, methods and/or devices used to produce a rectified and regulated output signal. In one aspect, the method includes, at a circuit, comparing an output signal at an output node with an input signal at an input node, wherein the output signal is a rectified and regulated signal, and the input signal is an unrectified and unregulated signal, and computing a difference between a reference signal and a comparison signal. Power transfer from the input node to the output node is prevented when the output signal is greater than the input signal. Furthermore, power transfer from the input node to the output node is regulated to produce the rectified and regulated output signal when both the input signal is greater than the output signal, and when the magnitude of the reference signal exceeds the magnitude of the comparison signal.
Power conversion system, and voltage detection device thereof
A detection target voltage is divided by a voltage divider circuit wherein a large number of resistor circuits, each of which is formed by a plurality of resistors being connected in parallel, are connected in series, and the voltage is detected. The output of a multiple voltage detector circuit formed of an operational amplifier, and the like, connected to three arbitrary places in the voltage divider circuit is input into a CPU twice, when the switch is in an on-state and when it is in an off-state. The CPU, based on the two measured voltages, can determine that trouble has occurred when there is, for example, trouble such as a short circuit or disconnection of a resistor of the resistor circuits related to the places connected to the three places in the voltage divider circuit.
Converter and method for controlling the same
A method for controlling converter such as a Flyback converter is disclosed. A load of the Flyback converter varies between zero and a peak value. The method includes: a load detecting step for detecting the load; and an operating mode control step for controlling the Flyback converter to switch between two or more of a continuous conduction mode, a valley conduction mode and a burst mode according to the load. A converter such as a Flyback converter is also provided.
DC-DC converter apparatus
Objects of the invention are not to receive influence of an electromagnetic noise from a transformer and to reduce a possibility of breakage caused by shock or vibration. In a DC-DC converter apparatus of the invention, a shielding metal frame 300 is placed between a transformer 250 and a control circuit board assembly 240A housed in a case 101. A plate spring 311 attached to the metal frame 300 is pressed to cores 251 of the transformer 250 to fix the transformer 250 to a bottom portion 101a of the case 101. Heat generated from the transformer 250 is transmitted to the metal frame 300 and the bottom portion 101a of the case 101 and is then radiated.
Overshoot prevention for deep dimming startup
An apparatus includes an energy storage device, a driver circuit configured to receive energy from the energy storage device, and a bleed circuit configured to reduce an amount of the energy received by the driver circuit from the energy storage device. The bleed circuit is configured to reduce the amount of the energy received by the driver circuit during a startup period. The energy storage device may include a transformer, the driver circuit and bleed circuit being coupled to first and second windings of the transformer, respectively. A method includes receiving, by a driver circuit, energy from an energy storage device, and reducing, using a bleed circuit, the energy received by the driver circuit during a startup period. The energy storage device may include a transformer, the driver circuit and bleed circuit being coupled to first and second windings of the transformer, respectively.
DC/DC converter, on-board unit and charging device
A DC/DC converter 1 is configured to allow separation of a primary side constitution unit 3 and a secondary side constitution unit 4 of a transformer 2. A secondary side switching element FET 2 is provided in the secondary side constitution unit 4, and controls power supply to a load 12 by intermitting an output of a secondary winding L2. The primary side constitution unit 3 detects an electrical behavior of the primary side generated by the intermittent operation of the secondary side, and controls the power supplied from the primary winding L1 to the secondary winding L2 by operating the intermittent operation of the primary side switching element FET 1 such that a cycle or duty of the intermittent operation of the secondary side falls within a predetermined range.
DC power supply equipment
A power supply equipment includes a plurality of units each including a capacitor and an isolated DC-DC converter connected between the both terminals of the capacitor, wherein DC input sides of the plurality of units are connected in series and the DC output sides are connected together in parallel. The DC power supply equipment also comprises control circuits to control the isolated DC-DC converters. The control circuits generate operation commands to operate some of the plurality of units in an alternating sequence with a same time ratio in a predetermined control period in a light load condition, and the control circuits control the isolated DC-DC converters of the units according to the operation command.
High efficiency boost converter
A boost converter circuit receives an input power supply voltage and produces an output boosted supply voltage. The circuit includes a voltage regulator, boosting circuitry, and a timing controller. The voltage regulator provides a regulated voltage to the boosting circuitry, which controls switching a transistor to drive the output boosted supply voltage; and the timing controller controls switching the boost circuit from the start-up mode to the normal operation mode. In start-up mode, the regulated voltage is generated from the input power supply voltage. During normal operation mode, the regulated voltage is generated from the output boosted supply voltage. The circuitry performs a low-power start-up when the input power supply voltage is low, and maintains efficient low-power operation by driving the transistor to produce the output boosted supply voltage as the input power supply voltage decreases.
DC/DC converter activation stability control
Provided is a DC/DC converter capable of operating a circuit to perform stable control even when an output voltage becomes 0 V at the time of activation of a power supply voltage or due to a load short circuit. The DC/DC converter includes an ON-timer circuit including: a ripple generation circuit configured to generate and output a ripple component based on a control signal; an averaging circuit configured to output a signal obtained by averaging an output of the ripple generation circuit; a timer circuit configured to generate and output an ON-time signal based on the signal of the averaging circuit and the control signal; and an activation circuit configured to increase a voltage of an output terminal of the ripple generation circuit to a predetermined voltage.
System and method to eliminate transition losses in DC/DC converters
Various embodiments of the invention reduce switching losses associated with existing non-zero volt switching and non-zero current switching in DC/DC converters without the need for a resonant design. Certain embodiments of the invention provide for improved efficiency by reducing switching losses related to the simultaneous presence of current and voltage across high power switching devices. In certain embodiments, this is accomplished by adding a relatively small inductor and two switching elements to various switching regulator topologies. Energy stored in the inductor is used to transition the output of the switching converter to achieve zero volt switching and zero current switching.
Switching regulator and the method thereof
A switching regulator uses an over voltage comparator to compare an envelop line signal with a reference wave signal, to detect whether the system is in an over voltage condition. The envelop line signal is indicative of a peak value of an inductor current.
Integrated limiter and active filter
An integrated limiter and active filter constituted of: an input node; an output node; a transistor coupled between the input node and the output node; a first control circuit coupled to the control terminal of the transistor and arranged to limit the amount of current flowing through the output node to a predetermined value which is responsive to a signal received at a first reference input; a second control circuit coupled to the control terminal of the transistor and arranged to limit the voltage appearing at the output node to a predetermined value which is responsive to a signal received at a second reference input; and a third control circuit coupled to input node and arranged to provide the second reference input, the third control circuit arranged to set the second reference input responsive to the input voltage and to a predetermined maximum allowed output voltage.
Low power and low EMI power stealing circuit for a control device
There is provided a device and a method for controlling a supply of power from an AC power source to a load. A switch is arranged in series electrical connection between the power source and the load, the switch having a first state in which the switch connects the load to the power source for supplying an electrical current from the power source to the load and a second state in which the switch disconnects the load from the power source. A power stealing circuit is arranged in parallel electrical connection to the switch and adapted to divert the electrical current away from the power source with the switch in the second state, the power stealing circuit comprising a linear semiconductor device adapted to control a rate of change of a first voltage across terminals of the switch upon the switch being brought to the first state.
Embodiments described herein may take the form of an electromagnetic actuator that produces a haptic output during operation. Generally, an electromagnetic coil is wrapped around a central magnet array. A shaft passes through the central magnet array, such that the central array may move along the shaft when the proper force is applied. When a current passes through the electromagnetic coil, the coil generates a magnetic field. The coil is stationary with respect to a housing of the actuator, while the central magnet array may move along the shaft within the housing. Thus, excitation of the coil exerts a force on the central magnet array, which moves in response to that force. The direction of the current through the coil determines the direction of the magnetic field and thus the motion of the central magnet array.
Vibration-based electric power generator
The present invention provides a The vibration-based electric power generator in which one of ends of a magnet holding member 20 and one of ends of an outer yoke 30 are connected to each other through a first support spring 41 which is a leaf spring, the other end of the magnet holding member 20 and the other end of the first support spring 41 are connected to each other through a second support spring 42 which is a leaf spring, and the outer yoke 30 or the magnet holding member 20 is fixed to a structure 50 such as a wall surface, a road sign, a vehicle body and a railway bridge for generating electric power from vibration of the structure 50. The vibration-based electric power generator has excellent durability and can generate electric power even by slight vibration.
Method and device for generating electrical energy
A method and device for generating electrical energy in a combined system of power plant, cold storage system and air compression system. The air compression system has a primary air compressor for generating a primary compressed air flow at a first pressure level. The power plant has a combustion unit which operates at a second pressure level and generates a combustion gas from which electrical energy is generated. The cold storage system has means for generating cold from compressed air, means for storing cold thus produced and means for generating a compressed air flow at the second pressure level using the stored cold. In a first operating mode (charging mode), a first compressed air flow is introduced from the air compression system into the cold storage system to charge the cold reservoir. In a second operating mode (discharging mode), the first compressed air flow generated in the primary air compressor, is introduced into the cold storage system to discharge the cold reservoir and to generate a third compressed air flow at the second pressure level, which is introduced into the combustion unit. The air compression system has a first booster for boosting compressed air compressed in the primary air compressor to the second pressure level. In a third operating mode (normal mode), the entire primary compressed air flow generated in the primary air compressor is boosted in the first booster to the second compressed air level and introduced into the combustion unit.
Stator arrangement and electric machine
The present invention relates to a stator arrangement for an electric machine, comprising a stator laminate stack, comprising a multiplicity of stator windings, comprising a contact-making device which has at least one contact conductor, which is designed to electrically connect at least two stator windings to one another, wherein a respective contact conductor has at least one connecting lug for electrically coupling an external connection unit to the contact-making device and at least one hook for receiving a winding wire end of a stator winding connected electrically in each case to the contact conductor. The present invention relates to an electric machine comprising such a stator arrangement.
Rotor for rotating electrical machine, rotating electric machine, and method for producing rotor for rotating electrical machine with magnet having surfaces tilted with respect to magnet insertion hole
Provided is a rotor for a rotating electrical machine which is capable of minimizing increases in eddy current losses via a magnet, while making insulating film processing of the surface of the magnet unnecessary. The rotor for the rotating electrical machine includes: a rotor core having a magnet insertion hole extending inside; a magnet inserted in the magnet insertion hole; and an insulating filler which is filled between the inner wall of the magnet insertion hole and the magnet so as to secure the magnet. The magnet is secured by the filler in such a manner that the surface of the magnet inside the magnet insertion hole is in an inclined position with respect to the extending direction of the inner wall of the magnet insertion hole.
Inductive power supply
One example discloses an inductive power supply device, comprises: an inductive coupler including a resonant circuit having a first resonant state in response to an object at a first distance from the inductive power supply, and a second resonant state in response to the object at a second distance from the inductive power supply; a driver circuit coupled to send a first power-level to the inductive coupler when in a charge-object state and to send a second power-level to the inductive coupler when in a detect-object state, wherein the second power-level is less than the first power-level; and an object detector coupled to detect the first and second resonant states and place the driver circuit in the charge-object state in response to the first resonant state, and place the driver circuit in the detect-object state in response to the second resonant state.
Auxiliary power system for optical network terminal
A system is provided for powering an optical network terminal, including a power adapter connected to the optical network terminal and configured to power the optical network terminal; and a battery tray, connected to the power adapter, configured to supply auxiliary power to the optical network terminal through the power adapter from one or more batteries contained within the battery tray, wherein the battery tray is configured to allow removal and replacement, at the customer premise, of the one or more batteries.
Charging system and charging method thereof
A charging system includes a transmission line, a power adaptor, and an electronic device. The transmission line includes a first terminal and a second terminal. The power adaptor is coupled to the first terminal and generates a charging voltage and a first voltage signal. The charging voltage is at a first voltage level. The electronic device is coupled to the second terminal and receives the first voltage signal. When the first voltage signal is larger than a first preset voltage signal, the electronic device outputs a second voltage signal to the power adaptor. When the second voltage signal is larger than a second preset voltage signal, the power adaptor adjusts the charging voltage into a second voltage level.
Near field communication and wireless charging device and switching method using the same
A near field communication and wireless charging device includes a coil, a tuning module, a near field communication module, a wireless charging module, and a power storage device. The coil is configured to receive electromagnetic waves. The tuning module is electrically connected to the coil. The near field communication module includes an attenuator and a near field communication control circuit. The attenuator is configured to attenuate the energy of electromagnetic waves transmitted from the tuning module. The near field communication control circuit is electrically connected to the attenuator. The power storage device is electrically connected to the wireless charging module. Electromagnetic waves are magnetically coupling to the coil, and the coil transmits signals of the electromagnetic waves to the near field communication module through the tuning module, or transmits the energy of the electromagnetic waves to the power storage device through the tuning module and the wireless charging module.
Method and apparatus for wirelessly transferring power and communicating with one or more slave devices
Some embodiments provide a system for charging devices. The system includes a master device and a slave device. Some embodiments provide a method for charging devices in a system that includes a slave device and a master device. The slave device includes (1) an antenna to receive a radio frequency (RF) beam and (2) a power generation module connected to the antenna that converts RF energy received by the slave antenna to power. The master device includes (1) a directional antenna to direct RF power to the antenna of the slave device and (2) a module that provides power to the directional antenna of the master device.
Bank card presence detection to avoid a wireless charger demagnetizing a bank card
Various embodiments relate to a method, machine-readable medium, and a system for preventing demagnetization of a magnetically sensitive object comprising detecting, by a first identification sensor at a wireless charging transceiver, a foreign object; determining, by a processor using information from the first identification sensor, whether the foreign object is magnetically sensitive; and responsive to a determination that the foreign object is magnetically sensitive, preventing the wireless charging transceiver from operating.
Method for transmitting power wirelessly, method for receiving power wirelessly, wireless power transmitting device, and wireless power receiving device
A wireless power transmitting device including a signal processing unit, a wireless transceiver, and a controller. The controller is configured to control a detection signal for detecting an external device to be transmitted via a wireless power transmitter, and if an authentication request signal is received from the external device in response to the detection signal, control an authentication response signal including an ID (Identification) assigned to the external device, and further, if a power profile signal including power amount information of the external terminal and change information indicating whether the power amount information is changed is received from the external terminal, control an allocation signal including wireless power allocation information indicating an allocated slot, determined based on the power amount information, to the external terminal.
Charge control apparatus and charge control method
ECU executes program including the steps of turning on an overcharge tentative determination flag and performing limitation on Win in a case where a rising rate ΔTB is higher than or equal to ΔTB(0), and a current average value IBs is a value on a side of charging, and the steps of turning off the overcharge tentative determination flag and cancelling the limitation on Win in a case where the rising rate ΔTB is lower than or equal to ΔTB(1), or the current average value IBs exhibits a value on a side of discharging, and the steps of determining that a battery is in the overcharging state and executing a fail safe process in a case where the integrated value IBs of current from a time point at which the overcharge tentative determination flag is switched from an off-state to an on-state becomes greater than or equal to IBs(0).
Control device, electric storage system, electronic device, electric vehicle, and electric power system to boot up a power source
A battery system including a battery unit including a plurality of battery cells, and a control device including a power supply boot-up unit. The power supply boot-up unit is configured to receive a voltage from the plurality of battery cells, and supply a control signal in response to the voltage supplied by the plurality of battery cells.
Control system, control apparatus, and control method
There is provided a control system including a plurality of first apparatuses, and at least one second apparatus that is connected to each first apparatus. The first apparatuses include a plurality of conversion units, and each include a control unit controlling an on/off state of each conversion unit by referring to a table. The second apparatus includes a power storage unit and a charging control unit controlling charging of the power storage unit. The conversion units each convert a first voltage supplied from a power generating apparatus to a second voltage according to a magnitude of the first voltage. The second voltage output from at least one of the conversion units is supplied to the second apparatus. The charging control unit controls charging of the power storage unit in accordance with a variation in the second voltage.
Electricity distribution system and electricity distribution method
An electricity distribution system includes an electricity supply control unit that receives information on power consumption, estimates the current and the future power consumption, and controls the supply of electricity to the electric device; an information display unit that displays information on a power use situation of an electric device electrically connected with the electricity supply control unit; and a battery server that accumulates power, in which the electricity supply control unit communicates the information on the power consumption with a new electric device when the new electric device is electrically connected, and when the amount of available power is exceeded by supplying electricity to the electric device, does not supply electricity to the electric device, makes the information display unit display that the amount of available power is exceeded by supplying electricity to the information display unit, and determines whether to use the power accumulated in the battery server.
Wireless power system with a self-regulating wireless power receiver
A method and a system for self-regulating wireless power transmitted to a wireless power receiver (WPR) are provided. An auto-tuning network is operably coupled within the WPR. The auto-tuning network includes an impedance network that dynamically increases, decreases, or maintains an amount of the received wirelessly transmitted power by detecting changes in a rectifier load disposed in the WPR and/or in a rectifier output voltage in the WPR. The auto-tuning network self-regulates the wireless power received from a wireless power transmitter (WPT) obviating the need for conventional communication messages. The WPT is hence free from a modulator/demodulator block and an out-of-band communication block and operates over a limited operating range to enable a simpler design for passing electromagnetic compliance regulations. The WPR implements a receiver-maximum-power-signature algorithm for enabling the WPT to detect unsupported receivers, configure its operating point and range, and terminate power transmission when not needed by the WPR.
Power transmitting apparatus, power receiving apparatus, control apparatus, and wireless power transfer system
There is provided a power transmitting apparatus including: a power supply, a power transmitting inductor, a mutual coupling adjusting unit and a control unit, in which the power supply supplies AC power, the power transmitting inductor transfers the AC power to a power receiving apparatus through magnetic coupling with a power receiving inductor in the power receiving apparatus, the mutual coupling adjusting unit adjusts a relative position between the power transmitting inductor and the power receiving inductor, and the control unit controls the mutual coupling adjusting unit, based on a mutual coupling coefficient between the power transmitting inductor and the power receiving inductor.
Electric power supplying apparatus, electric power supplying method, inverter, and electric vehicle
The present disclosure provides an electric power supplying apparatus including: an electric storage device; and a control portion configured to control processing for mixing an output from the electric storage device, and an electric power of an external electric power system with each other in accordance with at least one of a peak shift command, a load electric power, and a remaining capacity of the electric storage device, wherein an alternating current electric power is formed in the mixing processing. When the electric power supplying apparatus further includes an electric power generating apparatus, processing for mixing an output from the electric power generating apparatus, an output from the electric storage device, and an electric power of the external electric power system with one another, is controlled.
Modular static converters with parallel or series architecture and decentralized modular control (DMC)
A static converter with parallel architecture or series architecture comprises a plurality of switching cells, arranged in parallel or in series, and controlled in a decentralized manner by associated control modules, strung together according to a loop by a series of communication links.Each control module comprises a single and different local unit for generating the triangular carrier of the module which controls the positioning of its interleaving phase as a function only of the signals of the triangular carriers of the two adjacent modules.Each control module comprises a local unit for balancing the currents of branches and/or a unit for internal regulation of the output voltage of AVP type, or a local unit for balancing the cell voltages and/or a unit for internal regulation of the input current or output current of the ACP type.
Method and apparatus for controlling energy supply
A method and apparatus for controlling energy supply to energy consuming devices are provided. The method includes acquiring a first amount of energy to be used in at least one energy consuming device, determining the amount of energy stored in an energy storage, and optionally transmitting an energy supply request message to an energy supplier based on the amount of energy to be consumed in an energy consuming device and the amount of stored energy.
Filter for switched mode power supply
There is provided a filter for receiving a rectangular or stepped source voltage to be filtered and for providing an output voltage, the filter including means arranged to determine the output voltage in dependence on the frequency components of the source voltage within the filter passband, and independent of output current drawn.
We describe a photovoltaic power conditioning unit for delivering power from multiple photovoltaic panels to an ac mains power supply output, comprising: a dc input for receiving power from multiple photovoltaic panels; an ac output for delivering ac power to the ac supply; a bank of electrolytic energy storage capacitors for storing energy from the dc source for delivery to the ac supply; a dc-to-ac converter coupled to the ac output and having an input coupled to the bank for converting energy stored in the bank to ac power for the ac supply; and further comprising: a plurality of sense and control circuits, one for each capacitor in the bank, wherein each circuit is coupled in series with a capacitor, and is configured to disconnect the associated capacitor from the bank upon detection of a current flow through the associated capacitor of greater than a threshold current value.
Single-wire electric transmission line
A single-wire electric transmission line system that includes a power sources having first and second poles and a phase shifting device, coupled to one of the poles of the power source, in such a manner that the phase shifting device shifts the phase of a first signal propagating through the pole such that the shifted phase of the first signal will be essentially identical to the phase of a second signal propagating through the other pole. The shifted first signal is added to the second signal with essentially the same phase of second signal, whenever both poles are connected together to form a single-wire, through which the resulting added signal propagates.
Method for optimizing the yield of a partially shaded photovoltaic array
A method for optimizing the yield of a photovoltaic array with an inverter is provided. The method includes: a) cyclically measuring a current (Igiv) and a DC link voltage (U) when controlling the inverter by a MPP method (Maximum Power Point) and storing a measured current value, b) lowering the DC link voltage (U) to a value that exceeds by no more than 100% a minimum DC link voltage (Umin) admissible for operation of the inverter, c) measuring a current (Ired) with a reduced DC link voltage and comparing it with a previously stored value at a given time for the current (Igiv), d) if a prescribed threshold for a difference between the two currents (Ired, Igiv) is exceeded, a searching process for a global MPP (Maximum Power Point) is initiated, e) otherwise, operation is continued at a power maximum (MPP) with a last-stored current value for the current (Igiv).
Inverter apparatus having primary-side and secondary-side driver circuits driven by respective DC/DC converters and control method thereof
An inverter apparatus includes a direct current to direct current converter (DC/DC converter), a direct current to alternating current converter (DC/AC converter), a primary-side control circuit and a secondary-side control circuit. The DC/DC converter is arranged for outputting a first DC power and a second DC power. The DC/AC converter is coupled to the DC/DC converter, and is arranged for receiving the first DC power. The primary-side control circuit is coupled to the DC/DC converter, and is arranged for controlling an operation of the DC/DC converter. The secondary-side control circuit is coupled to the DC/DC converter and the DC/AC converter, and is arranged for receiving the second DC power, and controlling an operation of the DC/AC converter according to the second DC power.
GFCI test monitor circuit
A circuit interrupting device having an auto-monitoring circuit for periodically testing various functions and structures of the device. The auto-monitoring circuit initiates an auto-monitoring routine which, among other things, generates a self-test fault condition and determines whether the detection mechanisms within the device properly detect the self-test fault. Processing an early detection signal determines whether the self-test fault was properly detected without interfering with the normal operation of the detection circuitry and without causing a false trip within the device. Additional functionality of the auto-monitoring circuit permits automatic verification that the device is properly wired, that is, not miswired, and determines whether the device has reached the end of its useful life.
System and method to interrupt a DC current in a high voltage circuit by use of an AC circuit breaker
An electrical circuit to interrupt a DC current includes a bypass switch and an AC high voltage breaker which includes interrupters that are rated for carrying a current having a value of the DC current for a period of time less than or equal to continuous duty. The first interrupter is electrically coupled in parallel with the bypass switch. A making switch causes a cancellation current to flow from an energy source through the second interrupter, and through the first interrupter, in addition to the DC current. The AC high voltage breaker is adapted to a DC service as the DC current in addition to the cancellation current causes an arc quench which allows the AC high voltage breaker to cause the interruption of the DC current in the electrical circuit. A method for interrupting a DC current flowing in an AC high voltage circuit breaker is also described.
Battery circuit fault protection in uninterruptable power sources
A power system which includes a battery (or string of batteries) as well as a preemptive fuse driver, PFD, system. The PFD protection system reliably protects circuits that could be damaged by long term fault currents. More specifically, the PFD protection system includes a sensor and a controller as well as a controlled switch. The controller includes a PFD control module which allows protection to be tuned specifically to the source and load characteristics.
Electrical fitting for non-metallic electrical cable
An electrical fitting to secure multiple non-metallic electrical cables has a body having a first end for insertion into an electrical panel box or to receive conduit, and a second end having an opening with apertures formed near a periphery thereof, the body having a hollow interior for passage of cables, and a cable securing device having a plate dimensioned to mount to the body and clamping devices, each having a pair of resilient clamp fingers to secure at least one cable, each finger having a terminating end adjacent the terminating end of the other finger, a pair of squeezable arms extending to facilitate cable insertion and removal, and a pair of anchoring fingers extending from the first surface of the plate, each anchoring finger having a protruding member to snap into one of the apertures so as to secure the cable securing device especially when the arms are squeezed.
Rack positioning assembly for an electric panel, electric panel comprising one such assembly and method for fitting this assembly
The inventive rack positioning assembly for an electric panel comprises a vertical busbar (J2) for distributing electric current to electric appliances, said busbar comprising several bars, which are positioned in a same vertical plane and on which it is provided to connect racks of the electric panel, and several rack positioning modules (20), which are positioned above one another and which surround the bars of the vertical busbar. The positioning modules (20) comprise means (50) for increasing the insulation distance between the bars at the interface between two successive modules, that insulation distance corresponding to the length of the electric creep path between the bars.
An enclosed switchboard includes: a device containing board which contains main circuit devices such as circuit breakers; and a cable connection board which is arranged side by side adjacently to the device containing board, and contains cables that input and output electric power to/from the main circuit devices. In the enclosed switchboard, the cable connection board is configured by one housing; and the inside of the housing is divided into two by a partition plate to be comparted to a cable lead-in compartment which contains lead-in side cables and a cable lead-out compartment which contains lead-out side cables.