Wireless power transfer through conductive materials
An electrical component with conductive material(s) that is suitable for use within the electromagnetic field path of a wireless power transfer system. The electronic component includes conductive materials that are sufficiently thin to absorb no more than an acceptable amount of the electromagnetic field, yet thick enough to remain sufficiently conductive to perform the desired electrical function. In embodiments in which the wireless power supply delivers up to 20 watts of power, the conductive materials are not substantially thicker than about 1/10 the skin depth of the material at the anticipated wireless power frequency. The electrical component may be disposed at any location between the wireless power supply transmitter and the remote device receiver. The present invention permits the use of a wide rang of electrical components in the field path, such as a display, a sensor or a component capable of selectively operating as both.
Electromagnetic shielding structures
An electronic device may have a printed circuit to which electrical components are mounted. Electromagnetic shields may be mounted to the printed circuit over the components to suppress interference. A shield may have a metal frame covered with a conductive fabric. The conductive fabric may cover an opening in the top of the frame. An insulating layer may be formed on the lower surface of the conductive fabric to prevent shorts between components on the printed circuit and the conductive fabric. An insulating cap such as an elastomeric polymer cap may also be formed over each component to provide electrical isolation between the components and the conductive fabric. Shields may be formed by coupling shield cans to subscriber identity module shields or other metal structures in a device. Intervening wall structures may be removed to help provide additional shielding volume.
Liquid-cooled heat sink configured to facilitate drainage
Cooling apparatuses, cooled electronic modules, and methods of fabrication are provided which facilitate heat transfer from one or more electronic components to a liquid coolant in an operational mode, and drainage of coolant therefrom in a transport mode. The cooling apparatus includes a liquid-cooled heat sink configured to horizontally couple along a main heat transfer surface to the electronic component(s). The heat sink includes a thermally conductive structure with a coolant-carrying compartment through which coolant flows, and a coolant inlet tube and a coolant outlet tube affixed to the thermally conductive structure and in fluid communication with the coolant-carrying compartment to facilitate coolant flow through the compartment. The coolant-carrying compartment has a base surface, and the coolant outlet tube extends into the coolant-carrying compartment towards the base surface to facilitate withdrawal of the liquid coolant from the compartment in the transport mode of the cooling apparatus.
Computer room, data center, and data center system
A data center system includes an infrastructure unit including a public area and a bridge area and at least one computer room. The computer room is disposed along an extending direction of the bridge area, and a length of the bridge area is matched with a length of computer rooms arranged along the bridge area, so that a number of computer rooms may be increased according to the needs. The computer room includes a plurality of layers of data centers stacked on each other. Cold passage areas and hot passage areas of two neighboring layers of data centers form a cold air passage and a hot air passage so that cold air produced by a cooling module may be directed to each data center, and hot air in each data center may be directed to the cooling module to enable devices in each data center to operate under appropriate temperature.
Automatic height compensating and co-planar leveling heat removal assembly for multi-chip packages
Embodiments of the present disclosure may include a heat removal assembly that is to thermally couple with two or more dice of an electronic device. The heat removal assembly may include a bellows to automatically adjust a position of at least one surface of the heat removal assembly relative to another surface of the heat removal assembly. Other embodiments may be described and/or claimed.
Regulation of airflow and performance in information handling systems after fan failure
A fan control subsystem may control a plurality of fans in an information handling system to cool the information handling system. The fan control subsystem may determine a fan importance factor for each of the plurality of fans based on the presence and thermal priority ratings of one or more thermal components located in a respective thermal region associated with each of the plurality of fans. Upon detecting a failure of one of the plurality of fans, the fan control subsystem may regulate airflow within the information handling system based on the fan importance factors determined for the fans.
Thermal piezoelectric apparatus
An integrated thermal apparatus includes a piezoelectric device and a thermal module which includes a thermal plate contacting a heat source to remove heat from the heat source. The thermal plate has built-in heat sinks for maximizing the surface area for heat dissipation. Each piezoelectric device includes one or more piezoelectric elements. Through the actions of piezoelectric elements, a jet of air and an influx of air are generated to cool the heat sinks. The airflow also cools the surface of heat plate, which acts like a fan mounted on top of the heat source.
Rail for mounting a rack-mountable component
A rail for mounting a rack-mountable component can include a longitudinal member having a first flange, a spring located proximal to the first end and having an uncompressed state and a compressed state, and a latch having a trigger arm and a cam arm, wherein moving the trigger arm toward the first flange engages the cam arm with the spring to transition the spring from the uncompressed state to the compressed state.
Housing for at least one electronic card
Housing for an electronic card includes a chassis that has a base, a cover, and an insertion wall. The base has a female element and a pocket. The electronic card can be introduced/extracted through a window of the insertion wall. The electronic card also includes guide walls, each including: a guide groove to receive the electronic card; a male element to cooperate with the female element; a tongue disposed at an end of the guide wall oriented on a side opposing the insertion wall and forming an arm having a stud to be inserted in the pocket; a clip disposed at the guide wall end and forming an elastic blade with a tooth oriented towards the base, and a face of the blade is oriented towards the cover and is designed to abut the latter; and a backplane electronic card to be inserted between the blade and the arm.
Electrical connection box and wire harness
An electrical connection box applied to a wire harness includes a casing and a cover member. The casing is provided with a first member that houses an electronic component and a second member and an insertion port formed on the first member, and an exterior installation unit formed outside the insertion port of the first member with an end of an exterior member of which being arranged in a stacking direction. The cover member has a pair of locking units, and is locked to the exterior installation unit via the pair of locking units and holds an end of the exterior member between the cover member and the first member. The second member includes a pressing wall that interposes an end to be pressed of the cover member between the pressing wall and the first member and that presses the end to be pressed toward the first member side.
Electronic device for fast assembling and connecting
An electronic device for fast assembling and connecting includes a holder and a monitor. The holder includes a main lever, an assembling member, a positioning member, and a signal connector. The monitor includes a rear shell body, an assembling slide, and a connector. The monitor is movably installed in the holder. The assembling member is pivotally connected with the main lever. A rear shell body of the monitor includes an assembling slide and a connector. A slide portion is formed on the rear shell body. The slide portion and the assembling slide are movably installed in the assembling member. The connector is electrically connected with a signal connector of the assembling member. Accordingly, the monitor may be quickly installed in the holder. During the installation, the connector may be electrically connected with the signal connector.
Carrier rail housing
A carrier rail housing (1) is described comprising a snap-in base (2) for setting on a carrier rail (3). The snap-in base (2) comprises a carrier rail receiving opening (5) for receiving a carrier rail (3), two snap-in latches (4, 12) movable relative to each other comprising respectively at least one snap-in lug (6, 13), which protrude in a snap-in position into the carrier rail receiving opening (5) for locking with a carrier rail (3) receivable in the carrier rail receiving opening (5), and a coupling element (10) which is in operative connection with the two snap-in latches (4, 12) and transfers a movement of one snap-in latch (4) into a movement of the other snap-in latch (12). The snap-in base (2) further comprises a locking arm (15) with a stop (18) protruding into the carrier rail receiving opening (5) in an open position, in which the snap-in lugs (6, 13) are unlocked from the carrier rail (3), for applying at a side edge of the carrier rail (3) receivable in the carrier rail receiving opening (5). The locking arm (15) is in an operative connection with the snap-in latches (4, 12) in such a way that the snap-in latches (4, 12) are held in the open position by the application of the stop (18).
A plurality of electrically conductive material layers and a plurality of dielectric layers are alternately stacked on a second substrate. The plurality of electrically conductive material layers comprise first and second patterns. The first pattern comprises at least a first pair of overlaying areas free of the electrically conductive material, and the second pattern comprises at least a second pair of overlaying areas free of the electrically conductive material. The first pair of areas overlay areas of the second pattern having the electrically conductive material and the second pair of areas overlay areas of the first pattern having the electrically conductive material. The plurality of electrically conductive material layers are electrically isolated from one another by the dielectric layers.
Light-source module and light-emitting device
A light-emitting module (3a-c; 23; 26; 33a-c) comprising a plurality of light-sources (12a-e; 27a-h) arranged in at least a first and a second column (18a-b; 28a-c) arranged side by side and extending along a first direction of extension (X1) of the light-emitting module (3a-c; 23; 26; 33a-c); and a plurality of connector terminal pairs (13a-b, 14a-b, 15a-b, 16a-b 17a-b), each being electrically connected to a corresponding one of the light-sources (3a-c; 23; 26; 33a-c) for enabling supply of electrical power thereto. Each connector terminal pair (13a-b, 14a-b, 15a-b, 16a-b 17a-b) comprises a first connector terminal (13a, 14a, 15a, 16a 17a) and a second connector terminal (13b, 14b, 15b, 16b 17b) being arranged at opposite sides of the light-emitting module (3a-c; 23; 26; 33a-c). The light-sources (12a-e; 27a-h) are arranged in a predetermined light-source sequence along the first direction of extension (X1) of the light-emitting module (3a-c; 23; 26; 33a-c), and the connector terminal pairs (13a-b, 14a-b, 15a-b, 16a-b 17a-b) being electrically connected to the corresponding light-sources (12a-e; 27a-h) are arranged in the predetermined light-source sequence along the first direction of extension (X1) of the light-emitting module.
High-frequency component and high-frequency module including the same
A filter circuit component includes desired frequency characteristics without being influenced by a parasitic inductance and a parasitic capacitance, and since the ground terminal of the filter circuit component connected to the mounting electrode of the high-frequency component is connected to the ground electrode of the high-frequency component through the via conductors of the high-frequency component at the shortest distance, the packing density of the filter circuit component is significantly increased and the occurrence of an unnecessary parasitic inductance and an unnecessary parasitic capacitance is prevented. The filter circuit component is mounted on the high-frequency component to obtain the desired frequency characteristics without the influence of a parasitic inductance and a parasitic capacitance. Since the component is located in a space surrounded by the inner peripheral surface of the supporting frame body, the packing density of components mounted on the high-frequency component is increased.
Touch screen panel active matrix organic light emitting diode display device
A touch screen panel Active Matrix Organic Light Emitting Diode (AMOLED) display device for decreasing the thickness of a mobile terminal and improving a degree of freedom in design is provided. The touch screen panel AMOLED display device includes a flexible AMOLED disposed on the bottom of a window, and a Chip-On-Film (COF) film connected to the flexible AMOLED and coupled with a flexible AMOLED driver Integrated Circuit (IC). Therefore, the thickness of the touch screen panel AMOLED display device may be decreased, and damage of the AMOLED due to an external shock may be prevented. Additionally, separation of the flexible AMOLED driver IC from a mounting surface may be prevented.
Flexible display device
The present invention provides a flexible display device. A plurality of limiting structures are arranged at the back side of a display screen in rows with an end surface of a bottom end of each limiting structure fixed on the back side of the display screen. The head end has a protrusion, the protrusion comprising a first abutting surface and a second abutting surface adjoined with each other, an opening of an angle between the two surfaces away from the display screen. The tail end has a groove, the groove comprising a third abutting surface and a fourth abutting surface adjoined with each other, an opening of an angle between the two surfaces away from the display screen and the angle being larger than the angle between the first abutting surface and the second abutting surface.
Rigid flex circuit board
A rigid flex circuit board is provided, including a flexible circuit board, which includes a core layer, first and second cover layers, first and second bonding layers, first and second dielectric layers, and first and second superposition layers. The core layer includes first and second core circuit layers. The first and second cover layers cover a portion of the first and second core circuit layers. The first and second bonding layers cover a portion of the first and second cover layers. The first and second dielectric layers cover a portion of the first and second core circuit layers and the first and second cover layers. The first superposition layer is disposed on the first bonding layer and the first dielectric layer, and the second superposition layer is disposed on the second bonding layer and the second dielectric layer.
Substrate, imaging unit and imaging device
A substrate comprises: a first insulating layer; a second insulating layer having an elastic modulus that is different from an elastic modulus of the first insulating layer; and a core layer that is sandwiched by the first insulating layer and the second insulating layer, and is more rigid than the first insulating layer and the second insulating layer.
Radio frequency module
A radio frequency module includes a plurality of insulating base material layers made of a thermoplastic resin defining a multilayer circuit board and including a cavity inside thereof, an IC chip disposed in the cavity and including a noise generation source, and planar ground conductive bodies provided in the multilayer circuit board. The planar ground conductive bodies are disposed on a layer not exposed to the inner surface of the cavity, and include inter-layer connection conductive bodies protruding in the direction of the noise generation source from the planar ground conductive bodies.
Apparatuses to support photovoltaic modules
Methods and apparatuses to support photovoltaic (“PV”) modules are described. A saddle bracket has a mounting surface to support one or more PV modules over a tube, a gusset coupled to the mounting surface, and a mounting feature coupled to the gusset to couple to the tube. A grounding washer has a first portion to couple to a support; and a second portion coupled to the first portion to provide a ground path to a PV module. A PV system has a saddle bracket; a PV module over the saddle bracket; and a grounding washer coupled to the saddle bracket and the PV module. Saddle brackets can be coupled to a torque tube at predetermined locations. PV modules can be coupled to the saddle brackets.
Lighting unit with near field communication, integrated circuit and methods therefor
A lighting unit having a microcontroller; and a near field communication (NFC)-enabled embedded device comprising NFC shared memory configured to be written to by both an external NFC reader/writer using near field communication and the microcontroller and configured to enable an operation of the lighting unit to be both monitored and controlled using NFC. In this manner, the operation of a lighting unit may be monitored using NFC and controlled by using one of two approaches, such as via a microcontroller within the lighting unit and/or a near field communication, NFC, via the NFC-enabled embedded device; wherein the microcontroller is configured to manage a communication protocol to facilitate communications between the lighting unit and at least one other NFC-enabled device.
Wireless light switch system and method, load controller device, and remote switch device
A wireless load control system is provided including one or more wireless switch components and one or more load controller components optionally in one-to-one, many-to-many, many-to-one, and one-to-many wireless communication with each other. A wirelessly-controlled load controller assembly includes an enclosure adapted to fit within a junction box, the enclosure comprising a projecting fitting adapted to fit through an aperture of the junction box to maintain the enclosure in fixed relation to the junction box. A control circuit in the enclosure is provided with an antenna that extends through an antenna port that is disposed within the fitting so that when the load controller is mounted in a junction box, the antenna extends through the aperture of the junction box.
System and method for luminance degradation reduction using consumption rate limits
A system to compensate for luminance degradation of an emissive display is provided. The system employs a combination of a consumption rate limit and temperature to regulate and control display luminance for emissive displays (such as organic light emitting diodes). A consumption rate limit is employed to determine a display luminance ceiling at which to drive the display. By employing the aspects disclosed herein, the display systems may achieve a longer lifetime.
Lighting device and detection method thereof
A lighting device includes a light source, a driving module, a sensing module, and a control module. The driving module is configured to drive the light source. The sensing module is configured to obtain a brightness value corresponding to the environmental scene. The control module is configured to control the driving module to use a first current to drive the light source, control the sensing module to obtain a first brightness value, control, when the first brightness value is less than a reference brightness value, the driving module to use a second current to drive the light source, control the sensing module to obtain a second brightness value, the second current being greater than the first current by a predetermined amplitude value, compare the second brightness value with the first brightness value, determine that the light source is in a thermal attenuation state or an optical attenuation state.
An electronic device including a body and a light source module is provided. The body has a side on which an unstable display is disposed and another side on which a bi-stable display is disposed. The light source module is arranged inside the body and configured to provide a light source to one or none of the unstable display and the bi-stable display.
Two-level LED security light with motion sensor
A two-level LED security light with a motion sensor. At night, the LED is turned on for a low level illumination. When the motion sensor detects any intrusion, the LED is switched from the low level illumination to a high level illumination for a short duration time. After the short duration time, the LED security light returns to the low level illumination for saving energy. The LED security light includes a power supply unit, a light sensing control unit, a motion sensing unit, a loading and power control unit, and a lighting-emitting unit. The lighting-emitting unit includes one or a plurality of LEDs which may be turned-on or turned-off according to the sensing results from the light sensing control unit. When the motion sensing unit detects an intrusion, the illumination of the LED security light can be immediately turned on to the high level to scare away the intruder.
Lighting device, smart terminal, lighting-device network-forming system, and methods thereof
The present disclosure provides a lighting device including a lighting controller, an LED lamp, and a brightness controlling module. The lighting controller is configured for sending first control signals to the LED lamp and the brightness controlling module. The first control signals include an identity of the LED lamp and instruction information for turning on and off the LED lamp. The brightness controlling module is configured for receiving the first control signals sent by the lighting controller and obtaining a previously-stored telegraph code corresponding to the identity of the LED lamp when successively receiving the first control signals instructing to turn on, off, and on the LED lamp within a predetermined time period. The brightness controlling module is configured to adjust a brightness of the LED lamp according to the telegraph code and send out the telegraph code in a manner by changing the brightness of the LED lamp.
Method and system for lighting interface messaging with reduced power consumption
Provided is a system for reducing power consumption in digitally addressable lighting interfaces (DALI), the system including a processor having at least one pin, a transistor coupled to the processor and a resistive network coupled to the processor and the resistive network.
Lighting device and lighting fixture for current control with a solid-state lighting element
A lighting device which outputs a DC current to a load, the lighting device including: a downconverter circuit which includes a switching element and steps down a DC voltage input to the downconverter circuit; and a controller which controls turning on and off of the switching element, wherein the controller has operating modes including a detection mode in which the controller detects a time taken for a current through the switching element to reach a predetermined value after the switching element turns on, the current through the switching element representing the DC current output to the load.
The disclosure relates to a controller (606) for a switched mode power supply, SMPS (600), comprising: a switch toggling unit (670) having a first switching mode and a second switching mode, wherein the first switching mode is a continuous conduction mode or a boundary conduction mode and the second conduction mode is a discontinuous conduction mode; and a switch mode selector (676) configured to set the switching mode of the switch toggling unit (670) in accordance with a current in an inductor (602) of the SMPS (600).
Microwave module lid
A microwave module lid is disclosed. The microwave module lid can include an inner side operable to define, at least in part, a cavity configured to have a radio frequency (RF) emitting component disposed therein. The microwave module lid can also include two or more dielectric layers proximate one another. Each layer can have a thickness, a dielectric constant, and a dielectric loss characteristic. In addition, the microwave module lid can include a metal backing layer proximate one of the dielectric layers to contain RF energy within the lid. The thicknesses, the dielectric constants, and/or the dielectric loss characteristics of the dielectric layers can be configured to minimize RF resonance in the cavity.
Heat exchanger device and heater
A heat exchanger device for a heater a motor vehicle, having a housing with at least one fluid channel disposed therein, with a fluid inlet and a fluid outlet, an element generating an alternating magnetic field, and at least one, preferably metallic, flat heating element around which a fluid can flow on one or both sides, whereby at least one further flat heating element is provided, which is configured to divide the at least one fluid channel into subchannels. A heater with a heat exchanger device is also provided.
System and method for dynamic deployable wireless services
A system and method for intelligently and dynamically deploying a plurality of mobile robotic machines capable of carrying out a complex series of actions automatically to propagate wireless network connectivity comprising, at least, a mechanical framework, sensors, actuators, communications capability, an energy source, a propulsion means, a control mechanism, and a payload. The payload may comprise electronic or mechanical communication equipment to propagate services such as wireless networking services, in for example, a first responder or emergency environment, or electronic and mechanical jamming services in a military or anti-terrorism environment.
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 managing failed connection requests for devices in an inactive mode
Aspects of the subject disclosure may include, for example, a network device that receives a failure message from a mobility management entity where the failure message indicates that a first connection request from an application server to an end user device failed based on the end user device being in an inactive mode, where the network device provides to the application server a target time for transmitting a second connection request to the end user device, and where the providing of the target time to the application server causes the application server to cease transmitting connection requests to the end user device until the target time. Other embodiments are disclosed.
Bluetooth low energy secondary data channel with multi-rate streaming
Packets are communicated between a first device and a second device, over a primary data channel, according to an interval. The first device receives over the primary data channel a request from the second device to establish a secondary data channel. The request includes secondary connection parameters including an offset relative to events on the primary data channel, and a sub-interval relative to the interval. Acknowledgement is exchanged and the first and second devices communicate over the secondary data channel according to the secondary connection parameters.
Establishing simultaneous radio connection between a user equipment and two eNodeBs
A first radio station (1) requests or instructs a second radio station (2) to prepare for communication with a radio terminal (3) on a second cell (20) while a first radio connection on a first cell (10) with the radio terminal (3) is established. Further, the first radio station (1) instructs the radio terminal (3) or the second radio station (2) to establish a second radio connection on the second cell (20) with the radio terminal (3) while maintaining the radio connection on the first cell (10) with the radio terminal (3). It is thus for example possible to enable a single radio terminal to establish radio connections with cells of a plurality of radio stations, in order to achieve carrier aggregation of cells operated by different radio stations.
Mobile discovery via community self-naming conventions
Systems and methods may provide for determining a self-naming convention associated with a group of devices and receiving a first discovery communication from a remote mobile device. Additionally, a pairing process between the remote mobile device and a local mobile device may be accelerated if the first discovery communication is a remote device name that complies with the self-naming convention. In one example, a local device name may be generated in accordance with the self-naming convention and the local device name may be broadcasted as a second discovery communication.
Method and device for fast link synchronization in WLAN system
The present invention relates to a wireless communication system, and more specifically, a method and a device whereby a station (STA) performs link setup with an access point (AP) in a WLAN system are disclosed. The method according to one embodiment of the present invention comprises: a step in which an STA receives a first frame related to link setup from an AP in a wireless communication system; and a step in which a second frame related to association is transmitted to the AP, wherein the first frame is a fast initial link setup (FILS) discovery frame and the second frame may comprise timestamp request information in case an AP configuration change count (CCC) value the STA has and an AP CCC value included in the received first frame are determined to be the same.
Method and apparatus for contention-based uplink data transmission
A method and apparatus for a wireless transmit receive unit (WTRU) to use a contention-based uplink communications channel, applies a rule-based restriction of access to the contention-based uplink channel that attempts to use at least one contention-free uplink channel allocation for uplink transmissions on a condition that at least one contention-free uplink channel allocation has been granted.
Multicarrier signal transmission in wireless communications
A wireless device transmits a random access preamble (RAP) on a first cell of a first cell group. If a configured transmission of an uplink transport block (UTB) or an uplink control information (UCI) on a second cell of a second cell group overlaps in time with transmission of the RAP, the wireless device adjusts transmission power of at least one of the UTB or the UCI. If a configured transmission of a sounding reference signal (SRS) on a third cell overlaps in time with transmission of the preamble, the wireless device drops the configured SRS transmission if a calculated total transmission power exceeds a first value.
Methods, apparatus, user equipment, wireless network node, and computer program product for random access
Embodiments of the disclosure provide a method, an apparatus, a wireless network node, a user equipment and a computer program product for random access in a wireless network. According to the method, a RoT level may be selected from a plurality of RoT levels according to a predetermined policy, and a time period with the selected RoT level may be determined for initiating a random access request.
Method and apparatus for network assisted data transfer scheduling
A method, apparatus, computer program product and system are provided for scheduling support for cloud services. From the perspective of a client device, a method is provided that includes causing a support request to be transmitted and receiving an indication message. The support request includes an indication of an amount of data associated with a support task and an indication of an urgency of the support task. The method further includes determining whether to wait for or reject the support task. If it is determined to wait, the method includes performing one or more idle functions, receiving a ready indication, and determining whether to proceed with or cancel the support task. If it is determined to proceed with the support task, the method further includes causing an acceptance indication to be transmitted and receiving or causing to be transmitted, the data associated with the support task.
Communication control method, user terminal, and communication apparatus
A communication method comprises: broadcasting, from a communication apparatus to a user terminal, system information for Device to Device (D2D) proximity service, by use of a frequency of a serving cell of the user terminal, the communication apparatus managing the serving cell. The system information includes first information and second information. The first information indicates an available frequency for a discovery procedure in which the user terminal discovers another user terminal. The second information indicates at least one parameter for calculating transmission power for the discovery procedure. The available frequency for the discovery procedure is a frequency different from the frequency of the serving cell. The first information is related to a center frequency of a frequency band of the available frequency for the discovery procedure.
Dynamic determination and signaling of a RAR window size to a coverage enhanced low complexity machine type communication device
In one example embodiment, a base station includes a processor configured to determine a window size indicating for how long a random access response transmission by the base station is to be searched and monitored. The base station further includes a transceiver connected to the processor and configured to transmit, over a downlink control channel, downlink control information including the determined window size.
Method and apparatus for indicating allocation of distributed communication resources
A user equipment (UE) receives downlink data using resource blocks in a wireless mobile communication system. The UE includes data processing circuitry coupled to a receiver that receives downlink control information including resource allocation information for the downlink data from a base station and to receive the downlink data mapped to physical resource blocks (PRBs) based on the downlink control information. The resource allocation information indicates virtual resource block (VRB) allocations for the user equipment. Each resource block corresponds to one time slot. A resource block pair includes a first resource block associated with a first time slot and a second resource block associated with a second time slot adjacent to the first time slot. The first and second resource blocks are allocated to the same frequency indices. A mapping relationship between VRB pairs and PRB pairs exists such that frequency consecutive VRB pairs are mapped to non-frequency consecutive PRB pairs and that each resource block pair is split so there is a frequency gap between the first and second parts of the resource block pair. The resource allocation information indicates the frequency gap size is one of a first value and a second different value.
Method and network node for improving resource utilization of a radio cell
The present invention relates to a method of a network node for improving utilization of resources of a cell 102 provided by a radio base station (RBS), the cell covering a geographical area and being a cell served by a low power node (LPN) 101 of the RBS in a heterogeneous network 100. The method comprises determining a load of downlink (DL) resources of the cell used for wireless communication terminal(s) 104 connected to the cell. The method also comprises deciding, based on said determined load, that the DL bandwidth of the cell available for scheduling should be adjusted, allowing the power of the LPN to be reallocated for the adjusted bandwidth available for scheduling whereby a transition zone area 103 between the LPN and at least one neighboring node 105 will be adjusted accordingly. The transition zone is an area in which a path-loss is lower to the LPN than to the at least one neighboring node but a received DL power density is lower from the LPN than from the at least one neighboring node.
Method of outputting content through network, and apparatus and system for performing the method
A system for outputting content through a network includes: a first server configured to store content received in an account of a user; and a second server configured to obtain the content from the first server, convert the content into output data, and transmit the output data to an output device, according to an output request received from a mobile terminal of the user, wherein when the second server receives a request to check the content from the mobile terminal, the second server provides a preview of the content, instead of an original file of the content, to the mobile terminal.
System and method for adaptive transmission time interval (TTI) structure
Methods and devices are provided for communicating data in a wireless channel. In one example, a method includes adapting the transmission time interval (TTI) length of transport container for transmitting data in accordance with a criteria. The criteria may include (but is not limited to) a latency requirement of the data, a buffer size associated with the data, a mobility characteristic of a device that will receive the data. The TTI lengths may be manipulated for a variety of reasons, such as for reducing overhead, satisfy quality of service (QoS) requirements, maximize network throughput, etc. In some embodiments, TTIs having different TTI lengths may be carried in a common radio frame. In other embodiments, the wireless channel may partitioned into multiple bands each of which carrying (exclusively or otherwise) TTIs having a certain TTI length.
Method, user equipment and base station for configuring radio frame for offsetting Doppler effect
Flexible employment of frame configuration in light of the Doppler frequency change is proposed. According to the present invention, frame configuration for a predetermined frequency band may be changed. Changing frame configuration in the present invention may include changing the number (≧0) of zero-power subcarriers which alternate with nonzero-power subcarriers.
Collision avoidance system for mobile slotted aloha protocol
A system for reducing collisions in communications utilizing a media access control (MAC) data communication protocol and/or a time division multiple access-based (TDMA-based) data communication protocol, such as an Aloha protocol or an MS-Aloha protocol, that may include one or more electronic devices (such as electronic devices of a vehicular ad-hoc network (VANET)).
Suspending a connection in a wireless communication system
An evolved Node B (eNB) includes a memory and at least one hardware processor communicatively coupled with the memory and configured to: determine to suspend an established radio resource control (RRC) connection with a user equipment (UE), where suspension causes the established RRC connection to be a suspended RRC connection that disables user plane data communications between the UE and the eNB; in response to a determination to suspend the established RRC connection, store RRC connection data related to the established RRC connection; and transmit, to the UE, an RRC connection suspend command instructing the UE to store the RRC connection data and suspend the established RRC connection.
Method for the transmission of data field of technology
A method, system and computer program product for the transmission of data from a transmitter to receiver. The present invention is directed to improving data transmission. To this end, the transmission of data is accelerated, and an inband-signaling of information is carried out on an MAC-layer plane, wherein the information is particularly relevant to the base station (BS).
PUCCH resource allocation with enhanced PDCCH
Embodiments of the present disclosure include methods, apparatuses, and instructions for receiving at a user equipment (UE) of a third generation partnership project (3GPP) network an offset value selected from a plurality of offset values in downlink control information. The UE also receives one or more enhanced control channel elements (eCCEs) of an enhanced physical downlink control channel (ePDCCH). The UE may then determine an allocation of an uplink resource for a transmission on a physical uplink control channel (PUCCH) based at least in part on the index of a first eCCE and the offset value.
Mapped device/PHY maintaining system
A device/PHY mapping maintaining system includes a rack that houses a networking device and that is configured to house a server device in different locations. The networking device provides a device/PHY mapping between the server device and a first PHY when the server device communicates with a first antenna system that is connected to the first PHY through a first radio processing engine. The networking device determines that the server device is communicating with a second antenna system that is connected to a second PHY through a second radio processing engine and, in response, connects the second antenna system to the first PHY to maintain the device/PHY mapping between the server device and the first PHY by connecting at least one of the second antenna system and the first PHY to a different radio processing engine.
Base station apparatus, mobile terminal apparatus and communication control method
The present invention provides a base station apparatus, a mobile terminal apparatus and a communication control method which can improve the accuracy of channel quality estimation. A communication control method includes the steps of: allocating a CSI-RS (Channel State Information-Reference Signal), which is a reference signal for downlink channel estimation, in resources for the CSI-RS that are defined for CSI-RS transmission; setting muting resources in the resources for the CSI-RS; and reporting parameters to specify the CSI-RS, including at least a transmitting subframe cycle, a subframe offset and transmission power, to a mobile terminal apparatus.
MTSI based UE configurable for video region-of-interest (ROI) signaling
In a video conferencing application, a user viewing a scene can performing zooming by selecting an area in the scene, then dynamically switching a video feed of the scene to the selected area of the scene. The hardware and software of the video conferencing application can limit the video transmitted to the user to include only the selected area of the scene. Transmitting only the selected area of the scene, and excluding the non-selected area of the scene from transmission, can more efficiently use the available bandwidth of the video conferencing application.
Method and server for broadcasting a data file to a plurality of radio talk groups
A method and server for broadcasting a data file to talk groups. The method includes fragmenting the data file into data blocks and broadcasting the data blocks to the talk groups. The method also includes detecting a voice call start event based on a first change is a received voice call status. The method further includes detecting a voice call end event based on a second change in the received voice call status. The method also includes generating a backlog item. The backlog item includes a subset of data blocks of the plurality of data blocks. The subset of data blocks were broadcasted on the broadcast data channel after the voice call start event and prior to the voice call end event. The method further includes broadcasting the subset of data blocks on the broadcast data channel upon detection of the voice call end event.
Associating metro street address guide (MSAG) validated addresses with geographic map data
Master Street Address Guide (MSAG)-validated street address data is correlated with real-world geographic (e.g., latitude/longitude) data. Conventional MSAG-validated street address data is processed, or geocoded, into an additional (or integrated) database that associates latitude/longitude information with a particular entry in the existing MSAG-validated database. The association of the lat/lon data may be direct, or indirect using link ID or other unique tags indicating a particular entry in the MSAG-validated database. The geocoding need be performed only once by a service provider, e.g., as part of the deployment of an emergency service system. In this way, the closest public service answering point (PSAP) to a given latitude/longitude position of a wireless or VoIP device may be determined quickly, providing emergency services with the smallest possible reliable response time.
Methods and apparatuses for requesting/providing assistance data associated with various satellite positioning systems in wireless communication networks
Systems and methods for requesting and providing assistance data for a satellite positioning system are described herein. A method as described herein includes receiving, at a base station over a wireless communication link, a first message from a mobile station, wherein the first message comprises a first field identifying requested assistance data associated with a first Satellite Positioning System (SPS) and a second field identifying a requested format of the requested assistance data, and wherein the requested assistance data are available in a plurality of formats that includes the requested format; and transmitting a second message from the base station to the mobile station over the wireless communication link, wherein the second message includes the requested assistance data in the requested format.
Handset agent calibration for timing based locating systems
A handset agent calibration solution is provided that uses the GPS receivers on mobile devices to determine a location of the mobile device to calibrate timing based locating systems. The handset agent can be installed on the mobile device and can upload to an internet server the coordinates captured by the GPS receiver along with the observed time differences. The observed time differences and the location of the mobile device can be used to solve for reference time differences to calibrate unsynchronized macrocells. The reference time difference can be used to solve for the location of other mobile devices if the observed time differences between that mobile device and the macrocells are known. The solution can include receiving measurement reports from many mobile devices to obtain averaged observed time differences at a reference location to achieve more accurate reference time differences.
Uplink synchronization processing method, user equipment, and base station
An uplink synchronization processing method, a user equipment (UE), and a base station are provided. The method includes: receiving a component carrier (CC) uplink synchronization indication message sent by a base station, where the uplink synchronization indication message carries identification information of one or multiple newly configured CCs; sending synchronization signaling to the base station when knowing that the uplink synchronization needs to be executed on all or a part of the one or multiple newly configured CCs corresponding to the identification information; and receiving a time advanced (TA) adjusting message that is sent by the base station according to the synchronization signaling, and applying a TA value carried in the TA adjusting message to the CC on which the uplink synchronization needs to be executed.
CCA clearance in unlicensed spectrum
Techniques are described for contention-based wireless communications channel access that may improve the likelihood that a contention procedure will pass and allow a device to transmit an uplink or downlink transmission using the contention-based channel. Various disclosed techniques may determine a transmit power for a subsequent transmission based on channel characteristics during one or more clear channel assessment (CCA) time durations. The transmit power may be selected to provide a CCA threshold that may increase the likelihood that a device will win contention for the channel during the CCA procedure.
Enodeb restricted banwidth and power boost operation to support MTC devices
A wireless telecommunication system includes base stations for communicating with terminal devices. One or more base stations support a power boost operating mode in which a base station's available transmission power is concentrated in a subset of its available transmission resources to provide enhanced transmission powers as compared to transmission powers on these transmission resources when the base station is not operating in the power boost mode. A base station establishes an extent to which one or more base stations in the wireless telecommunications system supporting the power boost operating mode conveys an indication of this to a terminal device. The terminal device receives the indication and uses the corresponding information to control its acquisition of a base station of the wireless telecommunication system, for example by taking account of which base stations support power boosting and/or when power boosting is supported during a cell attach procedure.
Method and apparatus for reducing power consumption in mobile device
A method and apparatus capable of minimizing power consumption occurring when a mobile device is changed from a sleep state to a wake-up state by partially controlling on/off of a display unit and partial booting control of a system function are provided. The method includes detecting a change of the mobile device from a sleep state to a wake-up state, turning on a display unit of the mobile device such that a first section of the mobile device displays an operating region, the first section including one or more portions of the display unit and less than an entire screen of the display unit and waiting for a system function registered in the operating region.
Power save method and station device
A power save method and a station device. The method includes: confirming, by a STA, according to a frame type identifier in a received frame, that the frame is an NDPA frame, and obtaining a STA AID in a STA information field in the NDPA frame; comparing, by the STA, its STA AID with the obtained STA AID, and determining whether its STA AID is the same as the obtained STA AID; and when the STA determines that its STA AID is different from the obtained STA AID, allowing the STA to enter a doze state. The method reduces the power consumption during the TXOP period and saves resources.
Method and device for accessing channel in wireless LAN system
According to one embodiment of the present invention, a method for performing a channel access by a station (STA) in a wireless communication system comprises the steps of: transmitting a first frame for a channel access request to an access point (AP); and receiving a second frame, which is a response to the channel access request, from the AP, wherein the first frame includes information indicating whether or not uplink data of the STA is present.
Power saving mechanism for mobile terminal
A mobile terminal includes a detector configured to detect presence of a first possible connection to a mobile network and a second possible connection to the mobile network, the first possible connection being a connection of a first technology and the second possible connection being a connection of a second technology. A selector identifies which of the first possible connection and the second possible connection causes less energy consumption in the mobile terminal in its low-power mode of operation, and a controller connects the mobile terminal to the mobile network through the identified possible connection. The disclosure is also directed to a corresponding operating method, a corresponding computer program, and a network entity for supporting a mobile terminal in performing a power consumption sensitive cell reselection.
User equipment and base station
The present disclosure relates to techniques for implementing cell selection suitable for 3D MIMO. One aspect of the present invention relates to user equipment, comprising: a transmission and reception unit configured to receive a reference signal list including precoded reference signals transmitted from a camped base station and an adjacent base station; a measurement unit configured to measure reception quality of the respective precoded reference signals in the received reference signal list; and a beam selection unit configured to select a beam to communicate with the camped base station or the adjacent base station based on the measured reception quality and indicate the selected beam to the camped base station or the adjacent base station.
Providing a mobile terminal with system information which enables the terminal to access one of the cells of a cellular telecommunications system includes transmitting from the telecommunications system to all terminals within the cell, including the terminal, a system information indicator that makes available to the terminal system information to provide access to the system. The system information indicator is transmitted on the broadcast channel (BCH). The system information indicator may be a sub-set of the system information conventionally transmitted on the BCH but which is sufficient to allow the mobile terminal to access the network and obtain in the downlink further system information. Alternatively, the information transmitted in the BCH may be a profile index value which directs the mobile terminal to retrieve from a store of the mobile terminal system information pre-stored on the mobile terminal.
Cell broadcast for signaling resource load from radio access networks
Concepts and technologies are described herein for cell broadcast for signaling resource load from one or more radio access networks (“RANs”). According to one aspect disclosed herein, a base station can collect signaling load information of the base station. The base station can also generate a cell broadcast message that includes the signaling load information. The base station can also send the cell broadcast message to a target mobile device. The target mobile device can be configured to determine, based at least in part upon the signaling load information, to which radio access network of a plurality of radio access networks to connect.
System and method for reliable communications over multiple packet RF networks
The invention is a method and system for mobile communications. A mobile communicator communicates with a network routing center. The communicator monitors each of two or more wireless carriers for a service characteristic. The communicator selects, based on the monitored service characteristic, one of the two or more wireless carriers. The mobile communicator can then communicate with the network routing center using the selected wireless carrier.
Route optimization for on-demand routing protocols for mesh networks
Various embodiments implement a set of low overhead mechanisms to enable on-demand routing protocols. The on-demand protocols use route accumulation during discovery floods to discover when better paths have become available even if the paths that the protocols are currently using are not broken. In other words, the mechanisms (or “Route Optimizations”) enable improvements to routes even while functioning routes are available. The Route Optimization mechanisms enable nodes in the network that passively learn routing information to notify nodes that need to know of changes in the routing information when the changes are important. Learning routing information on up-to-date paths and determining nodes that would benefit from the information is performed, in some embodiments, without any explicit control packet exchange. One of the Route Optimization mechanisms includes communicating information describing an improved route from a node where the improved route diverges from a less nearly optimal route.
Method of automatically adjusting mobility parameter
By the method of the present invention, the automatic adjustment of mobility parameter between different frequencies or different access systems becomes available and can be supported in the case of the self-optimization of mobile load balance and the self-optimization of mobile robustness, so as to improve the performance of mobile communication system.
Communication apparatus, storage apparatus, and control method
A communication apparatus includes a memory and a processor coupled to the memory and configured to transmit a first content acquisition request to a first server apparatus via a first base station apparatus, receive a content, requested by the first content acquisition request, from the first server apparatus via the first base station apparatus, and change, in a case where coupling is switched from the first base station apparatus to a second base station apparatus in a handover process, a transmission destination address in a second content acquisition request to be transmitted to the second base station apparatus, from a first address of the first server apparatus coupled to the first base station apparatus to a second address of a second server apparatus coupled to the second base station apparatus.
Cell reselection for link budget limited devices
Some embodiments relate to a user equipment (UE) configured to modify at least one signal strength threshold value to provide improved operation for link budget limited devices when performing cell selection or reselection. In some embodiments, the UE may receive a threshold value indicating a minimum received signal strength for camping on a cell. The UE may determine an offset value based on operating parameters of the UE, and may determine a modified threshold value by applying the offset value to the received threshold value. The UE may then compare the modified threshold value to a signal strength measurement of a signal received from a base station associated with the cell. The UE may camp on the cell if the modified threshold value is less than the signal strength measurement, and not camp on the cell if the modified threshold value is greater than the signal strength measurement.
Method and apparatus for performing cell reselection in wireless communication system
A method and apparatus for performing cell reselection in a wireless communication system is provided. A user equipment (UE) in an idle mode camps on a second cell, and receives reselection information for dual connectivity, which indicates cell reselection to a first cell or cell reselection to a frequency of the first cell, from the second cell. If the UE supports dual connectivity, the UE performs cell reselection based on the received reselection information for dual connectivity.
Method and apparatus for processing handover of terminal in mobile communication system
A method and an apparatus for processing a handover of a terminal in a mobile communication system are provided. The method includes determining, by a source evolved-NodeB (eNB), a handover of a User Equipment (UE) to a target eNB, obtaining information about content transmitted to the UE from a source cache server connected to the source eNB over a backhaul network, and transmitting the content information to a target eNB.
A method of influencing operation of user equipment in a wireless telecommunications network, a computer program product and network control node operable to perform that method. The method comprises: providing user equipment with a neighbor cell list; selecting at least one priority criteria to be applied by user equipment to a cell included in said neighbor cell list; and communicating the selected priority criteria to user equipment, determining an action to be taken by user equipment in relation to a cell meeting said priority criteria and communicating said action to user equipment and wherein the action comprises: a measurement performance requirement to be applied in relation to a cell having a priority. It will be appreciated that aspects and embodiments may define a means to manage an expected increase in size of an NCL in HetNet deployments without a need to significantly increase user equipment complexity to meet measurement performance requirements.
Method and apparatus for adjusting mobility parameter
A mobility parameter adjustment method and apparatus for use in a wireless communication system is provided. The mobility parameter adjustment method of a base station includes receiving connection failure information from a terminal, and adjusting a mobility adjustment parameter based on the connection failure information. The mobility parameter adjustment method and apparatus of the present disclosure is capable of adjusting mobility parameter efficiently so as to improve the mobility robustness of the wireless communication system and User Equipment (UE).
Device and method of handling network configurations
A communication device for handling network configurations comprises a storage unit for storing instructions and a processing means coupled to the storage unit. The processing means is configured to execute the instructions stored in the storage unit. The instructions comprise receiving a radio resource control (RRC) message indicating a reconfiguration of at least one of a radio link control (RLC) configuration, a packet data convergence protocol (PDCP) configuration and a semi-persistent scheduling (SPS) configuration; performing the reconfiguration according to the RRC message, when at least one of following conditions is satisfied: the RRC message changes a secondary cell group (SCG) of the communication device, and the RRC message reconfigures a radio bearer from a SCG bearer to a MCG bearer; and stopping performing the reconfiguration, when none of the conditions is satisfied.
Method for selecting a master CM in a coexistence network
The present invention relates to a method for requesting the selection of a master management apparatus through a server by a management apparatus enabling television white space (TVWS) apparatuses to coexist in a TVWS. The method includes the steps of: determining whether the trigger condition of the process for selecting the master management apparatus is satisfied; and requesting the selection of the master management apparatus by the server, wherein the master management apparatus is configured to determine a channel selection in the TVWS for terminals connected to the master management apparatus and a slave management apparatus, and the trigger condition can be based on the load balance parameters or geographical coverage parameters of the management apparatus.
Multi-tier quality of service wireless comfmunications networks
The present invention pertains to improved communication quality of service in communication networks. A customer may pay different fees for different tiers of service relating to voice quality and bandwidth access. Higher service tiers may guarantee that a specific vocoder or bit rate is used; or guarantee that communication is supported by parameters such as maximum allowed dropped calls rate, jitter and latency. Availability may be guaranteed per the contract between subscribers and service providers. Different tiers may be associated with customers' records for billing purposes. High end devices may be afforded higher voice quality by comparing a given device to a look up table indicating what service level is associated therewith. A calling device or a receiving device may ask the other device to change the vocoder or bit rate to ensure a higher quality call. The user may also change the quality level before or during a call.
Messaging devices and methods
An electronic messaging device includes a receiver configured to receive a message at one of a first operational frequency and second operational frequency. The messaging device can added to a message distribution group comprising a plurality of existing messaging devices. A test communication can be sent through a coupling to test an operation of the messaging device and confirming the addition of the messaging device to the message distribution group without communicating with the existing messaging devices.
Network diagnostic system for analyzing performance of a radio network during functional over-the-air operation
An apparatus determining network health in a network comprising base station transceivers in bidirectional communication with radios, each having an identifier and transmitting a signal including the identifier. First and second devices each receive the transmitted signal during normal over-the-air operation of the radio, measure signal parameters, and determine operating characteristics of the radio from the parameters. Each of the devices produce a responsive received signal when the first operating characteristics determined by the first device indicate a healthy first radio and the second device produces a responsive received signal when the second operating characteristics determined by the second device indicate a healthy first radio. The devices determine respective signal parameters of the respective received signals. The received signals are time aligned to insure that the devices have determined the respective signal parameters of the same transmitted signal. Network health is indicated by the first and second operating characteristics.
Network performance testing in non-homogeneous networks
As disclosed herein, a method, executed by a computer, for analyzing a performance metric includes distributing link connection information for a network to each node in the network, pairing each node with another node in the network to provide paired nodes, testing a performance metric for the paired nodes, and generating a performance report for the network. The method may further include receiving link connection information for the network. The method may further include constructing a connectivity graph based on the received link connection information. The method can be used to test link performance within non-homogeneous networks. A computer system product and a computer program product corresponding to the method are also disclosed herein.
Methodology and method and apparatus for signaling with capacity optimized constellations
Communication systems are described that use geometrically shaped constellations that have increased capacity compared to conventional constellations operating within a similar SNR band. In several embodiments, the geometrically shaped is optimized based upon a capacity measure such as parallel decoding capacity or joint capacity. In many embodiments, a capacity optimized geometrically shaped constellation can be used to replace a conventional constellation as part of a firmware upgrade to transmitters and receivers within a communication system. In a number of embodiments, the geometrically shaped constellation is optimized for an Additive White Gaussian Noise channel or a fading channel.
Gateway relocation control method and control device in mobile communication system
A control method and device, as well as a system, are provided that make it possible to perform relocation at an appropriate timing without impairing a user's sensory feeling about use of a service. A relocation control device 301 that controls relocation of a packet network gateway 100a which provides functionality as an anchor for ensuring mobility of a mobile terminal in a mobile communication system, includes a bearer information acquisition section 311 that, when an occasion for relocation arises, acquires information to obtain importance and a use state of a communication between a mobile terminal 50 and the packet network gateway 100a, and a relocation determination section 312 that determines whether or not to perform relocation, based on the importance and the use state of the communication.
Architecture, devices and methods for supporting multiple channels in a wireless system
Devices, systems, and methods are presented for a wireless base station to assign dynamically a plurality of radio transceiver chains among a varying number of wireless channels. In this manner, the communication system including the wireless base station may transition between a range extension mode and an enhanced capacity mode. In the range extension mode, a system is configured for maximum communication range with Subscriber Stations that are relatively distant from the radio transceiver chains, although communication is still possible with nearby Subscriber Stations. In the enhanced capacity mode, the system is configured for maximum communication throughput with Subscriber Stations that are relatively near to the radio transceiver chains, whereas communication with relatively distant Subscriber Stations will be either terminated or at least non-optimized.
Method, device, and system for collecting and reporting minimally necessary real-time personal context
A wireless computing device collects and reports minimally necessary real-time personal context of a user. During a first period of time, collecting and storing one or more first personal context information elements associated with the user but not reporting them via wireless transmission. In response to determining that there is an increased probability of an incident occurring near the user, for a second period of time: continuing to collect the first personal context information elements and reporting them all via wireless transmission, and beginning collecting and storing second personal context information elements not collected during the first period of time but not reporting second personal context information elements via wireless transmission.
Multiple BSSID procedure with TIM encoding
Certain aspects of the present disclosure provide methods and apparatus for s wireless communications, comprising a processing system configured to generate a frame with an information element (IE) having a partial virtual bitmap field that indicates zero or more basic service sets (BSSs) that have buffered group-cast traffic, wherein the partial virtual bitmap field comprises at least one encoded subfield that identities at least one individual BSS having buffered group-cast traffic using one or more bits of an identifier of the individual BSS, and an interface for outputting the frame containing the IE for transmission.
Methods and devices for device to device communication source address change indication
A method implemented in a user equipment (UE) includes obtaining an indication for changing a first source address to a second source address, where the first source address is used in a device to device communication session. The method further includes obtaining the second source address. The method further includes generating a message including the second source address. The method also includes transmitting the generated message using the first source address.
Method and apparatus for medium access group assignment
Systems and methods for implementing a medium access group assignment of stations (STAs) are disclosed. An access point (AP) device may be configured to allocate a chosen beacon interval to a medium access group (MAG). Further, the AP device may assign STAs to different MAGs. After assignment to a particular MAG, the STAs that are associated to the particular MAG may use the configured beacon interval during transmission and reception of messages.
Delivery of branding content and customizations to a mobile communication device
Embodiments of the disclosure are directed to methods and systems for provisioning and/or customizing a mobile device. After a mobile device is purchased by a user, custom settings and information (or customization content) may be delivered to or accessed on the mobile device. In some embodiments, the customization content may be pre-loaded onto the device and access via a uniform resource identifier (or URI) string. In other embodiments, the customization content may be accessed from a remotely hosted location via a uniform resource locator (or URL) string. Additionally, customization content may be accessed via a combination of the above methods.
Method, device, and system for improving device pairing between a scanning wireless radio communication device and target wireless electronic devices
Improved device pairing between a scanning wireless radio communication device and target wireless electronic devices is provided by initiating a discovery process and during the discovery process: receiving, from each of a plurality of target wireless electronic devices, wireless pairing information, receiving, from some or all of the target wireless electronic devices, and in addition to the wireless pairing information, physical state information describing a particular physical state of the target wireless electronic device; for each target wireless electronic device providing the particular physical state of the target wireless electronic device, correlating the received physical state information with state information stored at the scanning wireless radio communication device and associated with an indication that the target wireless electronic device is a preferred discoverable target wireless electronic device; and initiating pairing with or displaying only those physical stated correlated target wireless electronic devices.
Device pairing via device to device contact
A system may include and/or involve a first device, a second device, and logic to effect pairing of the first and second devices upon detection of physical contact between the devices.
System and method for providing individualized tsunami notifications with the aid of a digital computer
A system and method for providing individualized tsunami notifications with the aid of a digital computer are provided. A request for a location of a mobile device is received by a mobile application executing on the mobile device. The location is provided to at least one server. A notification of a possible forecasted tsunami impact on an area that comprises the provided location is received via the communication network, the notification comprising a vector line applicable to a map of the area and describing a portion of the area forecasted to be impacted when applied to the map. The vector line is applied to the map and the portion of the area is represented on the map. When the location is forecasted to be impacted is calculated. The representation of the portion of the area and when the location is forecasted to be impacted is represented via the mobile device.
Content distribution channel selection, transcoding, and tracking gateway
An auxiliary content delivery gateway. The gateway comprises a processor, a non-transitory memory, and an application stored in the non-transitory memory. When executed by the processor the application creates auxiliary content request messages comprising a collaborator mediation indication based on requests for auxiliary content received from a plurality of mobile communication devices and transmits the auxiliary content request messages to a plurality of auxiliary content sourcing channels, whereby the auxiliary content sourcing channels discern that the auxiliary content request messages do not constitute click-fraud based on the collaborator mediation indication in the auxiliary content request messages. The application further receives auxiliary content response messages from the plurality of auxiliary content sourcing channels and transmits selected auxiliary content to the mobile communication devices based on the auxiliary content response messages.
Methods and systems for automatic creation of talkgroups based on received signal strength indicator (RSSI)
Disclosed herein are methods and systems for automatic creation of talkgroups based on received signal strength indicator (RSSI). In one embodiment, a first mobile radio broadcasts a talkgroup invite and receives responses from other mobile radios. The first mobile radio selects one or more of those other mobile radios based at least in part, for each received response, on one or both of (i) an invite-RSSI value included in the response and associated with receipt of the invite by the mobile radio from which the response was received and (ii) a response-RSSI value associated with receipt by the first mobile radio of the response. The first mobile radio establishes a talkgroup that includes itself and the one or more selected other mobile radios, and communicates as a participant in the established talkgroup.
Method and arrangement for locating a mobile device
A method for locating an electronic mobile device capable of wireless communication, the method including obtaining a probability map structure for the area of interest, the probability map structure associating environment data values, preferably including cellular network based data, with location data, obtaining a number of probabilistic temporospatial motion models for different types of motion, the models at least partly defining transition probabilities between location estimates relative to time, obtaining at least environment data captured or determined by the mobile device at a plurality of sequential time instances, and determining the most probable location estimate of the mobile device based on combining probability data from both the probability map structure and the motion models, wherein the at least environment data is best fitted in the motion models and probability map structure according to predefined criteria. Related two arrangements and a computer program are presented.
Position information providing device, position information providing system
A navigation device, which works as a position information providing device for providing information on positions to a user, includes a terminal ECU that can log in management servers, each of which manages a social networking service (SNS) to which information can be posted, via a line network. The terminal ECU logs in the management servers via the line network in synchronization with a start operation of the navigation device to acquire the whole or a part of posting information on positions posted to the SNS by network users and accumulated in the management servers.
Apparatus, systems and methods for visually connecting people
A method for visually finding and interacting with people, operable on a computing system including a server and a mobile device comprising a processor, a display and a camera, the method comprising: detecting the current location of members of a group, which a user of the mobile device has created or is a member of, if the group members have similar mobile devices and if they have set to permit their visibility when the user or other group members wish to locate them by scanning their surroundings with the camera of their mobile device; and, for each group member detected while the user is scanning user's surroundings, and having a position falling in the direction the mobile device's camera points to at a particular moment, displaying on the mobile device's display a group member representation associated with the group member's position.
Earth positioning system
An earth positioning system (EPS) is provided. The EPS includes a plurality of fixed LED lights with communication functions and a mobile communications device. A cloud computer and at least one map marked with world coordinates of the fixed LED lights may be further included. The LED light includes a substrate, at least one LED die, a power supply, a wireless communication module, a control unit and a housing. The LED lights may be arranged in indoor and outdoor environments, with coordinates represented in longitude, latitude and altitude. The coordinates are included in a map data of the cloud computer. When the mobile communication device moves with its carrier, the world coordinates of the mobile communication device can be located based on the coordinates of the LED lights nearby or based on the unique IDs of the LED lights together with the aforementioned map.
Method for transmitting signals via device-to-device link in wireless communication system, and apparatus therefor
Disclosed is a method for transmitting, by a user equipment (UE), signals via a device-to-device (D2D) link in a wireless communication system. Specifically, the method comprises the steps of: transmitting a control signal for the D2D link including a timing adjustment value for the D2D link based on a reference timing to a target UE without applying the timing adjustment value; and transmitting a data signal for the D2D link to the target UE with applying the timing adjustment value. Here, the timing adjustment value for the D2D link is same as a timing adjustment value for an uplink to a base station (BS).
Proximity based device usage
A method of performing functions by proxy for a set of associated proximate devices is disclosed. In some embodiments, the method may comprise associating a set of user equipments (UEs), wherein upon determination that a first UE in the set is unavailable for performing a requested function, at least one alternate second UE in the associated set of UEs is selected, wherein the at least one second UE is proximate to the first UE and the at least one second UE is available for performing the requested function. The performance of the requested function on the at least one second UE is initiated.
Integrated geospatial activity reporting
Systems and methods for distinguishing between user mobile device location data indicating user locations within an area of interest or merely near an area of interest are disclosed. User geospatial location data is obtained at user mobile devices (e.g., smartphones) upon the triggering event of a user action (e.g., visiting a web site or using an application on the user mobile device). The location data is stored and compared against polygonal map data accurately and precisely defining a map area of the area of interest. A map view may be generated by generating markers having different styles for user location data within or near the area of interest, which markers may then be overlaid on a map including a polygon representation of the area of interest. Such map view may be augmented by additional data and presented as a report including location and additional data for a plurality of users.
Monitoring a mobile device en route to destination
A system, method and apparatus are disclosed for monitoring a mobile device en route to a destination. A user of a monitored device specifies geo-fence regions along a route to the destination. Entry and exit of regions triggers the sending of event notifications to a monitoring device. Event notifications may be sent if an estimated time of arrival changes due to delay. Event notifications may be sent if the monitored device deviates from a planned route by a threshold distance. Event notifications may be sent through a direct communication link between the monitored device and monitoring device or through a location-based service.
System and method for using multiple networks to estimate a location of a mobile communication terminal
Apparatus and methods are described, including an interrogation device comprising an antenna, a transmitter-receiver (transceiver), and a processor. The processor, via the transceiver and the antenna, solicits a mobile communication terminal to associate with the interrogation device. While the solicited terminal is associated with the interrogation device, by communicating to the terminal respective identifiers of a plurality of base stations that collectively belong to a plurality of mobile communication networks, the processor drives the terminal to receive respective signals from at least some of the base stations, and communicate a property of at least some of the received signals to the processor. Other embodiments are also described.
Method and system for providing preference based content to a location aware mobile device
A system and method in accordance with exemplary embodiments may include receiving a message from a location-aware mobile device associated with a user, receiving content delivery information from the user, formulating a content package at least based on the content delivery information, and sending a content message associated with the content package to the location-aware mobile device via a network.
Transport of LCS-related messages for LTE access
Techniques for transporting messages for location services (LCS) are described. A Mobility Management Entity (MME) may have a location session with an Evolved Serving Mobile Location Center (E-SMLC) to provide location services for a User Equipment (UE). The UE may exchange LCS-related messages with the E-SMLC to obtain location services. In an aspect, LCS-related messages exchanged between the UE and the E-SMLC may be encapsulated in Non-Access Stratum (NAS) messages and transported via the MME and a base station. In another aspect, a routing identifier (ID) may be used to associate messages exchanged between the UE and the MME with the location session between the MME and the E-SMLC for the UE. Each NAS message exchanged between the MME and the UE may include the routing ID, which may enable the MME to associate each NAS message from the UE with the location session between the MME and the E-SMLC.
Method for short-range wireless communication and electronic device using the same
A method for short-range wireless communication for an electronic device is provided, which comprises establishing a first connection to a first electronic device; transmitting audio data on a call received by the electronic device to the first electronic device based on the first connection; and receiving audio data on a call received by the first electronic device based on a second connection in a state where the electronic device and the first electronic device are connected through the first connection.
User association with passive tags
Embodiments relate generally to methods and systems for user association with a gas detector using passive NFC tags. Applicants propose a gas detector with a near-field communication (NFC) reader built into the gas detector, thereby allowing the user to scan their employee identification (ID) badge or a specialized individualized NFC tag. In some embodiments, an NFC tag may be attached to an employee ID badge. The gas detector may communicate via NFC with the badge and/or tag, and may recognize the badge and/or tag as associated with a specific user. When the user starts their shift, the gas detector with an NFC reader can scan the tag and associate the user with the detector and store the information in a log for archival purposes. This process can be completed by the user, and does not require connecting the gas detector to a computer to provide the association.
Proxy connection method and apparatus
Apparatus has at least one processor and at least one memory having computer-readable code stored therein which when executed controls the at least one processor: to respond to receiving a proxy connection initiation request message from a source, the proxy connection initiation request message being a request to provide a proxy and including an address of a target and an address of the source, by causing sending of an advertising message addressed to the target; and to respond subsequently to receiving a connection request message from the target by causing sending of a proxy setup request message addressed to the source.
Method and apparatus for determining a position of a microphone
An apparatus comprises a receiver (203) receiving a multichannel signal comprising two channels for rendering by a first speaker (101) at a first position and a second speaker (103) at a second position respectively. A first signal generator (207) generates a correlated signal and a second signal generator (209) generates an uncorrelated signal from the multichannel signal, the signals comprising respectively correlated and uncorrelated signal components for the channels. A receiver (201) receives a microphone signal from the microphone (107). A first correlator (213) determines a first correlation signal from a correlation of the microphone signal and the correlated signal, and a second correlator (215) determines a second correlation signal from a correlation of the microphone signal and the uncorrelated signal. A position estimator (219) estimates a position of the microphone from the first and second correlation signals. For example, timings of peaks in the correlations signals may be used to determine propagation delays and thus distances from the speakers (101, 103).
Apparatus and method for efficient object metadata coding
An apparatus for generating one or more audio channels is provided. The apparatus includes a metadata decoder for receiving one or more compressed metadata signals. Each of the one or more compressed metadata signals includes a plurality of first metadata samples. The metadata decoder is configured to generate one or more reconstructed metadata signals and to generate each of the second metadata samples of each reconstructed metadata signal of the one or more reconstructed metadata signals depending on at least two of the first metadata samples of the reconstructed metadata signal. The apparatus includes an audio channel generator for generating the one or more audio channels depending on the one or more audio object signals and depending on the one or more reconstructed metadata signals. An apparatus for generating encoded audio information including one or more encoded audio signals and one or more compressed metadata signals is provided.
Playback device configuration based on proximity detection
Embodiments described herein involve configuring a playback device based on the detection of a barrier in proximity to the playback device. One embodiment may involve receiving proximity data that includes an indication of a barrier that is proximate to a playback device; detecting that the barrier is within a threshold proximity to a first speaker of the playback device based on the indication of the barrier proximate to the playback device; in response to the detecting, setting a playback configuration of the playback device; and causing the playback device to play an audio content according to the playback configuration.
High-voltage reset MEMS microphone network and method of detecting defects thereof
A method of detecting defects in a high impedance network of a MEMs microphone sensor interface circuit. The method includes adding a high-voltage reset switch to a high-voltage high impedance network, closing the high-voltage reset switch during a start-up phase of the MEMs microphone sensor interface circuit, simultaneously closing a low-voltage reset switch of a low-voltage high impedance network during the start-up phase, simultaneously opening the high-voltage reset switch and the low-voltage reset switch at the end of the start-up phase, and detecting a defect in the high-voltage high impedance network or the low-voltage high impedance network immediately after opening the high-voltage reset switch and the low-voltage reset switch.
System for localizing sound source and the method therefor
It is provided a system for localizing a sound source and a method therefor. The system includes a movable unit, being adapted for free movement and being integrated with a microphone; a motion tracking unit; and a processing unit, being adapted for receiving microphone signal and motion tracking unit signal and obtaining information on a direction from which sound from the sound source arrives using the microphone signal and motion tracking unit signal obtained during movement of the movable unit. By having the system and the method therefor, it is helpful for solving at least one of the technical problems: the complexity and a large volume of an acoustic camera for localization of a sound source; the restriction of the movement of the microphone in a sound source localization system.
Systems and methods for hearing assistance device antenna
Disclosed herein, among other things, are systems and methods for modular circuit component for a hearing assistance device flex antenna. One aspect of the present subject matter includes a universal apparatus for use with multiple hearing assistance devices. The apparatus includes a circuit module including an outer radial surface, the circuit module configured to provide electronics for a hearing assistance device. A flex circuit loop antenna is configured to be affixed to the outer radial surface, and the antenna is configured for wireless communication for the hearing assistance device. After the antenna is affixed to the outer radial surface, the circuit module is configured to be inserted into a plurality of different main hearing assistance device chassis. In various embodiments, the circuit module includes a retention feature and the antenna includes an opening configured to align with and receive the retention feature to affix the antenna to the circuit module.
An acoustic sensor adapted to convert acoustic vibration to a change in an electrostatic capacitance to detect the acoustic vibration is provided. The acoustic sensor includes a semiconductor substrate, a back plate including a fixed plate arranged to face a surface of the semiconductor substrate, and a fixed electrode film arranged on the fixed plate, and a vibrating electrode film arranged to face the back plate with a space formed therebetween. The vibrating electrode film includes a plate-like vibrating member that vibrates in response to sound pressure. The vibrating electrode film is fixed to the back plate with a fixing unit thereof including one or more fixing portions each including a fixing protruding end that is arranged on a protruding end of a leg portion protruding from an edge of the vibrating member. The vibrating member has an edge portion surrounding at least a part of the fixing protruding end.
Woven transducer apparatus
Embodiments of a speaker spider for a loudspeaker or transducer are provided. The speaker spider may include a textile material formed of a woven pattern with a plurality of concentric corrugations. The weaving pattern and/or dimensions of the speaker spider may substantially homogenize and/or reduce stress on the speaker spiders during operation of the speaker. The weaving pattern of the textile material of the speaker spider may include a pattern formed of a plurality of substantially concentric circular shapes, and/or a pattern including threads tangential to the central opening.
Digital audio processing systems and methods
A system for processing audio data of the present disclosure has an audio processing device for receiving audio data from an audio source. Additionally, the system has logic that separates the audio data received into left channel audio data indicative of sound from a left audio source and right channel audio data indicative of sound from a right audio source. The logic further separates the left channel audio data into primary left ear audio data and opposing right ear audio data and for separating the right channel audio data into primary right ear audio data and opposing left ear audio data applies a first filter to the primary left ear audio data, a second filer to the opposing right ear audio data, a third filter to the opposing left ear audio data, and a fourth filter to the primary right ear audio data, wherein the second and third filters introduce a delay into the opposing right ear audio data and the opposing left ear audio data, respectively. Also, the logic sums the filtered primary left ear audio data with the filtered opposing left ear audio data to obtain processed left channel audio data and sums the filtered primary right ear audio data with the filtered opposing right ear audio data to obtain processed right channel audio data. The logic further combines the processed left channel audio data and the processed right channel audio data into processed audio data and outputting the processed audio data to a listening device for playback by a listener.
Wireless speaker arrangement
The present invention relates to a wireless speaker arrangement. The present invention also relates to a wireless speaker system comprising at least a pair of such speaker arrangements, to a method for operating a wireless speaker arrangement and to a corresponding computer program product.
Complex exponential modulated filter bank for high frequency reconstruction or parametric stereo
An apparatus and method are disclosed for filtering an audio signal are disclosed. The apparatus includes an analysis filter bank, a high frequency reconstructor or a parametric stereo processor, and a synthesis filter bank. The analysis filterbank receives real-valued time domain input audio samples and generates complex valued subband samples. The high frequency reconstructor or parametric stereo processor modifies at least some of the complex valued subband samples. The synthesis filter bank receives the modified complex valued subband samples and generates time domain output audio samples. The analysis filter bank comprises analysis filters that are complex exponential modulated versions of a prototype filter.
Modular audio system and method
A method, computer program product, and computer system for receiving an indication that a first module is operatively connected to a main module, wherein the first module and the main module include hardware modules. A type of speaker operatively connected to the first module is identified. The type of speaker is matched to a speaker profile, wherein the speaker profile includes a predefined sound curve setting. The first module is tuned to the predefined sound curve setting based upon, at least in part, matching the type of speaker to the speaker profile.
Waterproof structure for microphone
A waterproof structure for a microphone includes a single-directional sound head disposed within an upper sleeve, which is disposed above a fixing seat having two fixing end portions, wherein a peripheral wall interconnecting the fixing end portions is formed with an insert hole. An empty tube is inserted into the insert hole in the fixing seat. Top and bottom covers are mounted respectively on the upper fixing end portion of the upper sleeve and a lower fixing end portion of the fixing seat, wherein each of the top and bottom covers is formed with a central through hole. Three pieces of breathable waterproof fabric are disposed between the top cover and the upper fixing end portion of the upper sleeve and another six pieces are disposed between the bottom cover and the lower fixing end portion of the fixing seat.
Microphone and microphone housing
A microphone includes a microphone unit that converts a sound into an electrical signal. A tubular housing houses the microphone unit and includes a rear opening portion in a side surface. A step portion surrounds the rear opening portion in an inner surface of the housing. A plate-like shielding member is attached to the step portion from an inner surface side of the housing, and a circuit board housed in the housing in contact with the shielding member includes a ground pattern its side surface and in a contact position between the circuit board and the shielding member.
Signal processing device, signal processing method, and computer program
There is provided a signal processing device including a first reproduced sound outputting section configured to cause a first reproduced sound providing section to provide a first reproduced sound, a second reproduced sound outputting section configured to cause a second reproduced sound providing section to provide a second reproduced sound, a comparison result obtaining section configured to obtain a result of comparison between the first reproduced sound and the second reproduced sound, and a correcting section configured to generate, based on the obtained result of comparison, a signal for correcting an output feature of the second reproduced sound from the second reproduced sound outputting section.
Sound output method and device utilizing the same
A sound output device and method are provided. The device includes a first speaker and a second speaker; a first coupling unit and a second coupling unit which can be coupled to the first coupling unit; a sensor module for sensing at least one of a coupling state between the first coupling unit and the second coupling unit, a separation distance, and a separation time; a communication module for forming a communication channel with an electronic device; and a processor for receiving sound information corresponding to a sound output function from the electronic device, generating control information for controlling the sound output function on the basis of at least one of the coupling state between the first coupling unit and the second coupling unit, the separation distance, and the separation time, and transmitting the generated control information to the electronic device.
Method of flat membrane speaker installation
A method of mounting a speaker to a wall having an opening defined therein includes attaching a top portion of the speaker to the wall. The top portion of the speaker is attached to the wall by a first clip. The method also includes swinging a bottom portion of the speaker toward the wall with the wall at an upper side of the opening between the top portion of the speaker and the first clip until a space between the bottom portion of the speaker and a second clip is substantially aligned with the wall at a lower side of the opening. The method further includes sliding the speaker away from the wall at the upper side of the opening to cause the wall at the lower side of the opening to be between the bottom portion of the speaker and the second clip.
Emergency alert data delivery apparatus and methods
Apparatus and methods for efficiently and flexibly providing emergency alert data (e.g., EAS messages) to subscribers of a content-based network, such as for example Internet protocol television (IPTV) subscribers. In one exemplary embodiment, the apparatus includes a server performing real-time receipt and encapsulation of the EAS data (which may comprise audio, video, and/or text), transport of the EAS data to client devices over the network, and use of one or more applications running on the client devices to decode and display/present the EAS data in a manner which effectively guarantees that it will be perceived by the viewer. In one variant, instant messaging (IM) infrastructure is used to authenticate clients and receive and display at least portion of the EAS data via a separate transport process. Server and client-side apparatus adapted for EAS data receipt, decoding and display are also disclosed.
System and method for engagement and distribution of media content
Disclosed is a system and method for distributing media content including an engagement system including a stamp server, the stamp server including a memory and a processor, a content system including a content server, the content server including a memory and a processor, and a user system communicatively connected to the engagement system and the content system, the user system configured to receive a stamp from at least one of the engagement system and the content system, and present the stamp and a stamp indicator on a display of the user system.
Dynamic video advertisement replacement
A system and method includes an automatic content recognition (ACR) headend to perform ACR recognition on a video stream that is also being streamed to a smart TV, to detect timing of an upcoming ad spot to be delivered within the video stream. An addressable TV (ATV) engine can be in communication with the ACR head end and to: determine, from data of an ad campaign, whether a first ad to be delivered to the ad spot is off target for the ad spot; notify the ad replacer client to replace the first ad with an addressable ad when the first ad is off target for the ad spot; and provide, to the ad replacer client, criteria with which to constrain an ad request to obtain a second ad that is on target for the ad spot.
Content replacement with onscreen displays
A method of content replacement with onscreen displays. The method can further include sending an overlay request to provide overlay content and an overlay format. The method can include receiving the overlay content and the overlay format selected in view of overlay parameters. The method can include superimposing the overlay content over the media content using the overlay format. The method can include detecting a presence of an onscreen display. The method can include determining a location of a portion of the onscreen display that extends underneath the overlay content. The method can include defining a window in the overlay content that corresponds to at least the location of the portion of the onscreen display. The method can include setting a transparency level of the overlay content in the window to permit the portion of the onscreen display to be at least partially visible through the overlay content.
Systems, methods and apparatus for transmitting data over a voice channel of a wireless telephone network
The various embodiments described herein generally provide apparatus, systems and methods which facilitate the transmission of data between a client device and a remote device over a wireless telephone network. More particularly, data from a client device is modulated into an audio signal and transmitted to a wireless telephone. The wireless telephone receives the audio signal and places a phone call to a remote device over a wireless telephone network. During the phone call, the wireless telephone transmits the audio signal across a voice channel of the wireless telephone network to the remote device. The remote device receives and decodes the audio signal to extract the transmitted data.
Search query column for internet-connected TV's
A TV display presents a grid of thumbnails representing content available for display from the Internet and next to the grid, a column of thumbnails representing content that conforms to a user-entered query. The conforming content is located by searching the Internet, from an EPG, from local TV storage, and from the TV's home network. Search result thumbnails are prioritized according to user navigation history.
Video device with electronic program guide application and methods for use therewith
An electronic program guide application generates an interactive graphical user interface (GUI) for display. The GUI includes a channel navigation region that displays a plurality of channel icons corresponding to a plurality of video channels in accordance with a linear ordering of the video channels. A channel lens pane presents a selected channel icon, channel information corresponding to a selected video channel, and an interactive channel rank control icon that responds to user interaction to modify a position of the selected channel icon in the linear ordering. A channel schedule region presents a nonlinear temporal ordering of program panes, each program pane corresponding to a program presented on the selected video channel. Each program pane includes a program icon, program schedule information relating to a time the program is presented on the selected video channel.
System and method for content-based navigation of live and recorded TV and video programs
A system, method and computer-readable medium are presented for providing real-time content-based navigation of live video programming. The video programming is received and a searchable database is generated. The method aspect of the invention comprises receiving a live video program, generating an index to the received live video program by extracting images and/or text from the video program, recording the live video program, presenting at least a portion of data associated with the generated index to a user, receiving user input regarding a search to a portion of the recorded video program to which the user desires to navigate and playing back the recorded video program starting at the searched portion identified by the user input. The search may be of an image and/or text portion of the presentation.
Systems and methods for setting a timer via an interactive trigger
Systems and methods may provide for setting a timer via an interactive trigger. The interactive trigger may be combined with a video stream and detected when the video stream is to be displayed. Based on the detection, a selectable display object associated with the interactive trigger may be displayed with the display of the video stream. Selection of the selectable display object may enable a timer to be set based on the interactive trigger. The timer enabled by the interactive trigger may be a recording timer, an auto-tune timer or a reminder timer.
Multi-stream premises apparatus and methods for use in a content delivery network
Apparatus and methods for enhanced tuner efficiency, wherein tuner resources function to permit multiple content streams to be demultiplexed and thus made available for subsequent display. In one embodiment, Customer Premises Equipment (CPE) comprises a resource manager on which a guide application is run to control the tuning of an available tuner resource. This approach obviate reliance on OCAP or other proprietary vendor architecture applications. In another variant, the CPE is adapted to receive RF source data from a wideband tuner, or multiple tuners. The CPE may also be utilized in conjunction with other system configurations designed to enforce a security or other policies within a premises network. The CPE may also employ ‘look ahead’ capabilities to anticipate a QAM stream content before it is received.
Methods and apparatus to determine viewing condition probabilities
Methods, apparatus, systems and articles of manufacture are disclosed for a viewing condition probability calculator. The viewing condition probability calculator enumerates a list of all viewing combinations for a tuning event, for a number of people N at a location. A probability for each of the viewing combinations is determined, using an independent probability of viewing for each of the N people at the location. A probability of a viewing condition is determined using the probabilities of a first set of viewing combinations that have a first common characteristic.
System and method for the presentation of alternative content to viewers of video content
According to certain embodiments of the present invention behavioral patterns are utilized in order to calculate a predicted level of interest of viewers in a specific video item at any given moment throughout the length of the video item. More specifically, according to certain embodiments, this calculation allows to identify instances of peaks of high and low interest throughout the length of the video item. This allows predicting the occurrence of critical moments throughout the video item when it is likely that viewers would abandon the video item on one hand, and moments when viewers are most likely absorbed in the currently presented video, on the other hand. This information allows to capture viewers when their interest in the viewed content is low or decreasing, and to synchronize the presentation of alternative content to these instances.
Broadcast reception device, operating method of broadcast reception device, conditional access module and operating method of conditional access module
A broadcast reception device is provided. The broadcast reception device includes a communication interface unit receiving, from a CAM, a first data unit including a request for diagnostic information for representing a status of the broadcast reception device; and a control unit generating a second data unit including a reply to the first data unit to transmit the second data unit to the CAM through the communication interface unit, wherein the second data unit includes information representing that the broadcast reception device does not implement displaying of a diagnostic information related screen.
Remote media streaming
A redirection device for remote streaming media reroutes media content sent to the receiving device, typically located in the home of the subscriber, to the subscriber's mobile device such as a laptop or smartphone. Remote media streaming provides media recipients with capabilities for out-of-home (OOH) viewing for remotely rendering media content from a subscriber based receiving device to a personal electronic device. The remote streaming redirects media that has already been received by the subscription based receiving device, such that the redirection device forwards a rendering signal including the requested content to the rendering device based on the reported location. The redirected media stream therefore emanates from the redirection device as an independent transmission of content already received by the receiving device, and not as a separate transmission of media content from the content provider.
Systems and methods for recording and playing back programs having desirable recording attributes
Systems and methods for recording multiple copies of a program are provided. The method may include receiving a user instruction to record a program. A determination may be made to record multiple copies of the program. In response to the determination, multiple copies of the program may be recorded. A user instruction to display the recorded program may be received. A copy of the program may be played back. The user may switch to another copy of the recorded program if the original copy lacks desirable recording attributes, or the interactive television application may automatically switch to another copy of the program.
Multi-channel video playback system with variable time delay
There is provided a video playback system comprising a plurality of video playback channels, a memory, and a processor configured to transmit a first video content over a first playback channel, store a first video transmission being transmitted over the first video playback channel in the memory, start transmitting, at a second time, the first video transmission from the memory over a second playback channel, receive an update segment for replacing a first segment of the first video transmission and a location of the first segment in the first video transmission, detect the location of the first segment in the first video transmission, transmit the update segment in place of the first segment over the second video playback channel, revert to transmitting the first video transmission over the second video playback channel, and store a second video transmission being transmitted over the second video playback channel in the memory.
Reducing latency in video encoding and decoding
Techniques and tools for reducing latency in video encoding and decoding by constraining latency due to reordering of video frames, and by indicating the constraint on frame reordering latency with one or more syntax elements that accompany encoded data for the video frames. For example, a real-time communication tool with a video encoder sets a syntax element that indicates a constraint on frame reordering latency, which is consistent with inter-frame dependencies between multiple frames of a video sequence, then outputs the syntax element. A corresponding real-time communication tool with a video decoder receives the syntax element that indicates the constraint on frame reordering latency, determines the constraint on frame reordering latency based on the syntax element, and uses the constraint on frame reordering latency to determine when a reconstructed frame is ready for output (in terms of output order).
Method of 3D or multi-view video coding including view synthesis prediction
A method and apparatus for 3D (three-dimensional) and multi-view video encoding or decoding of dependent-view texture or depth data using Merge mode with modified list size according to one or more 3D enabling flags are disclosed. An extra-candidate-number indicating one or more extra Merge candidates for the current block is determined according to one or more 3D enabling flags comprising a VSP (view synthesis prediction) flag. A modified list size for a 3D Merge list corresponding to a sum of the extra-candidate-number and an original list size is determined. The 3D Merge list with the modified list size is then determined based on original Merge candidates used to derive the base-view Merge list for video data in a base view and one or more 3D Merge candidates as enabled by the 3D enabling flags according to a priority order.
Method for coding and an apparatus
The invention relates to a method for encoding, a method for decoding, an apparatus, computer program products, an encoder and a decoder for video information. The motion vector for a block in a video image is predicted from a set of motion vector prediction candidates determined based on previously-coded motion vectors. A motion vector prediction candidate is included in the set based on the location of the block associated with the first spatial motion vector prediction candidate and in comparison with motion vector prediction candidates already in the set.
Moving picture encoding device, moving picture encoding method and moving picture encoding program, and moving picture decoding device, moving picture decoding method and moving picture decoding program
In inter prediction that is performed by partitioning a first block, which is obtained by partitioning each picture, into one or more second blocks, a spatial merge candidate generating unit derives a spatial merge candidate without referring to a block included in a first block that includes a second block. In case of a mode where a coding block is divided by a horizontal border into prediction blocks arranged vertically, the reference index derivation unit of a time merge candidate sets reference index information of a time merge candidate to a value of reference index information of an encoded prediction block adjacent to a left edge of a prediction block subject to encoding.
Picture coding device, picture coding method, and picture coding program, and picture decoding device, picture decoding method, and picture decoding program
In a picture coding device, a significant coefficient information coding controller 706 and an arithmetic encoder 701 code significant difference coefficient information indicating that a difference coefficient value is not zero and significant for each of the difference coefficients in the partial region of the coding target. A difference coefficient value coding controller 707 and the arithmetic encoder 701 code difference coefficient values when significant difference coefficient information is significant for each of pixels in the partial region of the coding target. The significant coefficient information coding controller 706 decides a context for coding the significant difference coefficient information in the partial region of the coding target based on information indicating significance of the difference coefficient in the coded partial region.
Render-orientation information in video bitstream
Disclosed are techniques for creating, coding, decoding, and using, rotation information related to one or more coded pictures in non-normative parts of a coded video bitstream.
Multi-level significance map scanning
Methods of encoding and decoding for video data are described in which multi-level significance maps are used in the encoding and decoding processes. The significant-coefficient flags that form the significance map are grouped into contiguous groups, and a significant-coefficient-group flag signifies for each group whether that group contains no non-zero significant-coefficient flags. A multi-level scan order may be used in which significant-coefficient flags are scanned group-by-group. The group scan order specifies the order in which the groups are processed, and the scan order specifies the order in which individual significant-coefficient flags within the group are processed. The bitstream may interleave the significant-coefficient-group flags and their corresponding significant-coefficient flags, if any.
Spatial motion vector scaling for scalable video coding
In one implementation, an apparatus is provided for encoding or decoding video information. The apparatus comprises a memory unit configured to store video information associated with a base layer and/or an enhancement layer. The apparatus further comprises a processor operationally coupled to the memory unit. In one embodiment, the processor is configured to determine a scaling factor based on spatial dimension values associated with the base and enhancement layers such that the scaling factor is constrained within a predetermined range. The processor is also configured to spatially scale an element associated with the base layer or enhancement layer using the scaling factor and a temporal motion vector scaling process.
Scalable video coding method and apparatus using inter prediction mode
The present invention relates to a scalable video coding method and apparatus using inter prediction mode. A decoding method includes determining motion information prediction mode on a target decoding block of an enhancement layer, predicting motion information on the target decoding block of the enhancement layer using motion information on the neighboring blocks of the enhancement layer, if the determined motion information prediction mode is a first mode, and predicting the motion information on the target decoding block of the enhancement layer using motion information on a corresponding block of a reference layer, if the determined motion information prediction mode is a second mode.
Gaming machine and method employing video compression
A video compression technique relates to gaming machines which comprise a display to display images; a user interface to receive input from displayed screen images; a memory; and a game controller configured to control display of the images and process input received via the user interface. The game controller is further configured to receive an image sequence comprising a plurality of frames and, for each frame, to divide the frame into a series of blocks; compress each of the blocks using a first compression technique to form a series of compressed blocks; for each compressed block in the frame, identify whether the block is identical to a previous block within the frame and, if so, replace the compressed block with an index to the previous block; for each compressed block in the frame, determine a data difference between the compressed block and a corresponding block in an immediately preceding frame.
Video coding with helper data for spatial intra-prediction
For decoding a video stream, an encoded video stream is received with an indication of a prediction mode and an indication of one or more prediction helper values. While decoding this encoded video stream, a predicted value is calculated for each of at least one sample based on the indicated prediction mode and on the prediction helper value(s). The decoded video stream, incorporating each of the at least one samples as decoded using the respective calculated predicted value, is then output to at least one of a computer readable memory and a graphical display. An optional step function can be utilized to aid the helper values and enable non-linear prediction values in a given row or column of a prediction unit. At the encoder side the encoder decides the prediction helper values that it uses to encode the video stream that is stored or transmitted to the decoder.
Entropy coding of motion vector differences
An entropy decoder is configured to, for horizontal and vertical components of motion vector differences, derive a truncated unary code from the data stream using context-adaptive binary entropy decoding with exactly one context per bin position of the truncated unary code, which is common for horizontal and vertical components of the motion vector differences, and an Exp-Golomb code using a constant equi-probability bypass mode to obtain the binarizations of the motion vector differences. A desymbolizer is configured to debinarize the binarizations of the motion vector difference syntax elements to obtain integer values of the horizontal and vertical components of the motion vector differences. A reconstructor is configured to reconstruct a video based on the integer values of the horizontal and vertical components of the motion vector differences.
Moving picture coding device, moving picture coding method, and moving picture coding program, and moving picture decoding device, moving picture decoding method, and moving picture decoding program
In a moving picture coding device that further divides a first block acquired by dividing each picture of a moving picture into a predetermined size into one or a plurality of second blocks and codes the moving picture in units of blocks, a quantization parameter calculation unit calculates a quantization parameter of the second block. A predictive quantization parameter deriving unit derives a predictive quantization parameter of the second block by using the quantization parameter of one or a plurality of third blocks that are neighboring to the second block. The predictive quantization parameter deriving unit derives the predictive quantization parameter of the second block by using a quantization parameter of a fourth block coded before the second block in a case where the third block neighboring to the second block is located at a position beyond a boundary of the first block.
Video encoder and video encoding method
A video decoder decoding an encoded stream includes a parallel entropy decoding part to entropy decode the stream of blocks in block lines in parallel, a parallel QP prediction part to compute prediction values of the blocks in the block lines in parallel, and a parallel decoding processing part to generate decoded pixels of the blocks in the block lines in parallel, the decoded pixel being obtained utilizing data decoded by the parallel entropy decoding part and the prediction value. When performing computing processing in parallel per unit of N block lines, the processing is performed on a processing block in a (K−1)th block line preceding a processing block in a Kth block line by at least one block in a horizontal position to compute the prediction value of the processing block by referring to a block already processed corresponding to the processing block.
Image decoding method, image coding method, image decoding apparatus, image coding apparatus, program, and integrated circuit
An image decoding method which can improve both image quality and coding efficiency is an image decoding method for decoding a coded stream which includes a plurality of processing units and a header for the processing units, the coded stream being generated by coding a moving picture, the processing units including at least one processing unit layered to be split into a plurality of smaller processing units, the image decoding method including specifying a hierarchical layer having a processing unit in which a parameter necessary for decoding is stored, by parsing hierarchy depth information stored in the header, and decoding the processing unit using the parameter stored in the processing unit located at the specified hierarchical layer.
Video encoding/decoding apparatus and method using batch mode together with skip mode
A video decoding method, includes: reconstructing a syntax corresponding to at least one of a first block, a second block and a third block, wherein the first block is generated by dividing a frame for decoding, the second block corresponds to a unit of a prediction and is generated by dividing the first block, and the third block corresponds to a unit of transformation and is generated by dividing the first block in a tree structure; and reconstructing a prediction block corresponding to at least one of the first block, the second block and the third block.
Image encoding and decoding method and apparatus
Embodiments of the present disclosure provide an image encoding and decoding method and apparatus. A division mode used for a current image block is acquired, division information of the current image block is acquired according to the division mode, and encoding processing is performed on a division mode identifier and the division information that correspond to the division mode, so that a decoder obtains, according to the division mode identifier and the division information, a division template used by an encoder, so as to perform decoding. The encoder and the decoder do not need to store a large quantity of division templates, thereby lightening a burden on an encoding and decoding system.
Encoding or decoding method and apparatus
Embodiments of the present invention provide an encoding or decoding method and apparatus. The method includes: extracting first information in a bitstream; determining a chroma component intra prediction mode according to the first information; when the chroma component intra prediction mode cannot be determined according to the first information, extracting second information in the bitstream; and determining the chroma component intra prediction mode according to the second information, where the first information includes information for indicating whether the chroma component intra prediction mode is a DM mode or an LM mode, the second information is used to indicate a remaining mode as the chroma component intra prediction mode, and the remaining mode is one of available chroma component intra prediction modes other than a mode that may be determined according to the first information.
Optical systems with compact back focal lengths
Optical systems, such as 2-D and 3-D projection systems, may be configured to have a compact back focal length to allow for more compact projection lenses, lower throw ratios, improved contrast, or any combination thereof. In an embodiment, an optical system may include a relay element configured to form an intermediate image having a focal point proximate to a projection lens.
A display device including: an image display section in which unit pixels each composed of a plurality of sub-pixels corresponding to a plurality of colors are arranged; and an optical element having a window section allocating light emitted from the image display section in units of the sub-pixels to a plurality of viewpoints, wherein a color arrangement of the sub-pixels of the image display section or an arrangement of the window section of the optical element is set such that, when the image display section is viewed from each of the plurality of viewpoints, in an arrangement of colors of light allocated by the window section of the optical element, a same color is not arranged linearly in a predetermined number of sub-pixels or more in succession in any of a row direction, a column direction, and an oblique direction.
Camera module and apparatus for calibrating position thereof
A camera module and an apparatus for calibrating position of the camera module are provided, the camera module according to an exemplary embodiment of the present disclosure comprises a first sensor unit configured to obtain a first image; a second sensor unit configured to obtain a second image; and a third sensor unit configured to obtain a third image, wherein the second sensor unit is spaced apart from the first sensor unit at a predetermined distance, and the third sensor unit is spaced apart from the second sensor unit at a predetermined distance.
Methods and devices for generating a stereoscopic image
Methods and devices for generating a stereoscopic image are described. In one aspect, the electronic device includes a main body and a support rotatably coupled with the main body about an axis of rotation. The support is rotatable between a plurality of positions including a first position and a second position. The electronic device also includes a first camera module for generating first camera data and a second camera module for generating second camera data. The second camera module is positioned in spaced relation to the first camera module and coupled to the support away from the axis of rotation. The electronic device further includes a controller coupled with the first camera module and the second camera module.
Method and apparatus for processing three-dimensional (3D) pseudoscopic images
A method for detecting three-dimensional (3D) pseudoscopic images and a display device for detecting 3D pseudoscopic images are provided. The method includes extracting corresponding feature points in a first view and corresponding feature points in a second view, wherein the first view and the second view form a current 3D image; calculating an average coordinate value of the feature points in the first view and an average coordinate value of the feature points in the second view; based on the average coordinate value of the feature points in the first view and the average coordinate value of the feature points in the second view, determining whether the current 3D image is pseudoscopic or not; and processing the current 3D image when it is determined that the current 3D image is pseudoscopic.
System and method for presenting and viewing a spherical video segment
Systems and methods for presenting and viewing a spherical video segment is provided. The spherical video segment including tag information associated with an event of interest may be obtained. The tag information may identify a point in time and a viewing angle at which the event of interest is viewable in the spherical video segment. An orientation of a two dimensional display may be determined based upon output signals of a sensor. A display field of view within the spherical video segment may be determined and presented on the display based upon the orientation of the display. The display field of view may be captured as a two dimensional video segment. If the viewing angle of the event of interest is outside the display field of view proximate the point in time, a notification may be presented within the display field of view.
Automatic white balancing system and method
Systems for automatic white balancing (AWB) of a digital image and methods for making and using same. In response to a white balancing trigger, the relative positions of an image sensor and a reference region for white balancing are automatically adjusted such that the image sensor can acquire an image of the reference region. A white balance parameter reflecting the color temperature of the illuminating source is then computed and used to perform white balancing so as to remove color casts. The position of the reference region can be pre-recorded or scanned-for by the image sensor. The reference region can be rendered mobile so that it can be positioned within the image sensor's field-of-vision. The imaging systems can further include a gimbal that enables the image sensor to rotate about one or more axes. The present systems and methods are suitable for use, for example, by unmanned aerial vehicles (UAVs).
Automatic white balancing system and method
Systems for automatic white balancing (AWB) of a digital image and methods for making and using same. In response to a white balancing trigger, the relative positions of an image sensor and a reference region for white balancing are automatically adjusted such that the image sensor can acquire an image of the reference region. A white balance parameter reflecting the color temperature of the illuminating source is then computed and used to perform white balancing so as to remove color casts. The position of the reference region can be pre-recorded or scanned-for by the image sensor. The reference region can be rendered mobile so that it can be positioned within the image sensor's field-of-vision. The imaging systems can further include a gimbal that enables the image sensor to rotate about one or more axes. The present systems and methods are suitable for use, for example, by unmanned aerial vehicles (UAVs).
Method and device for processing a projection image, and projection display system
Embodiments of this disclosure disclose a method for processing a projection image, including: obtaining an image to be projected, with a first resolution; adjusting the resolution of the image to be projected, according to a second resolution supported by a projection display device, to obtain a first image with a third resolution, number of pixels in the row direction of an image with the third resolution is N times number of pixels in the row direction of an image with the second resolution, and number of pixels in the column direction of the image with the third resolution is M times number of pixels in the column direction of the image with the second resolution; dividing the first image into pixel blocks, integrating pixels in the pixel blocks, to obtain a second image and a third image; and projecting the second image and the third image alternately.
Projection device and fabrication method of a polarization grating
A projection device including a light source, a reflective spatial polarization modulator, a polarization grating, and a projection lens is provided. The light source is configured to provide a light beam. The reflective spatial polarization modulator is disposed on a path of the light beam and configured to reflect the light beam and modulate a polarization state of the light beam. The polarization grating is disposed on the path of the light beam between the light source and the reflective spatial polarization modulator, wherein the reflective spatial polarization modulator reflects the light beam from the reflective spatial polarization modulator back to the polarization grating. The projection lens is disposed on the path of the light beam from the reflective spatial polarization modulator, wherein the polarization grating is disposed on the path of the light beam between the reflective spatial polarization modulator and the projection lens.
Light source apparatus and image display apparatus
A light source apparatus according to an embodiment of the present technique includes a first light source section, a second light source section, a third light source section, and a synthesis section. The first light source section includes a plurality of red laser light sources arranged in an array. The second light source section includes a plurality of green laser light sources arranged in an array. The third light source section includes a plurality of blue laser light sources arranged in an array. The synthesis section synthesizes red laser light emitted from the first light source section, green laser light emitted from the second light source section, and blue laser light emitted from the third light source section to generate white light.
User terminal and system and method for correcting color
The present invention is to provide a user terminal and a system and a method for correcting a color that improve the convenience by displaying an actual taken image and an image displayed on a display device in same colors. The user terminal includes a camera that takes an image of an object; a display device that displays the object; extracts color image data output when the camera takes an image of a color sample as a color reference provided on the object; compares the extracted color image data with the color of an original color sample; and corrects the color of the object displayed on the display device as a result of a comparison.
Real-time moving platform management system
The present disclosure describes a method for displaying data products onto a geospatial map in real-time using a computer program. In one version, the method includes the steps of monitoring the one or more directories of one or more computer readable media for newly created data products, automatically reading the newly created data products, correlating positional information of the data products with the geospatial map of the computer program for mapping and exploitation, and rendering information onto the geospatial map indicative of the area covered by each newly created data product.
Systems and methods for facilitating eye contact during video conferences
The disclosed computer-implemented method for facilitating eye contact during video conferences may include (1) detecting a video conference between a user of a computing device and a remote user of a remote computing device, (2) identifying a location on the computing device's screen where the eyes of the remote user are displayed as part of the video conference, (3) creating a video stream of the user that appears to be taken from the perspective of an imaginary camera located at the eyes of the remote user, and (4) transmitting the video stream of the user to the remote computing device of the remote user. Various other methods, systems, and computer-readable media are also disclosed.
Radiation imaging system
A radiation imaging system capable of obtaining excellent image quality is provided. The radiation imaging system includes a detection unit (205) configured to include a plurality of pixels which are arranged in a matrix and which output pixel values by converting radial rays into charges and to output image information, driving control means (204) for causing the plurality of pixels to perform a resetting operation until a signal indicating irradiation with radial rays is supplied and to stop the resetting operation and perform an operation of accumulating charges when the signal indicating irradiation with radial rays is supplied, and for performing an operation of reading pixel values of the plurality of pixels after the irradiation with radial rays is terminated so as to output image information corresponding to the irradiation with radial rays, correction coefficient obtaining means (207) for calculating correction coefficients in accordance with the image information output from the detection unit, and image correction means (208) for correcting the image information output from the detection unit using the correction coefficients calculated by the correction coefficient obtaining means.
Synchronized lighting and video active lighting tracks (VALT) with synchronized camera to enable multi-scheme motion picture capture
A method and system for synchronizing LED lighting to the shutters of fast digital cameras. The system enables capture of multiple lighting schemes to be filmed in a single video take on sequential frames. Since 24 frames per second is the industry standard used broadly in film and television, a 96 FPS camera can capture up to 4 lighting tracks of 24 FPS each in a single take. Each lighting fixture can be changed frame by frame to any desired intensity. The changing of lighting can be synchronized with the times when the shutter is closed so that all frames are complete and are without the visual artifact of the light changing mid frame. This is extremely useful for simple visual effects such as a simulated camera flash, lighting pattern or gun flash. The lighting can be programmed so that by turning on lights at the appropriate intensity while the camera shutters are closed all viewers on set perceive a constant, flicker-free light. The entire system is compatible with existing industry standards.
Image processing method and image processing device
An image processing method applied in an image processing device, which includes an image capturing unit, an image processing unit, an image recognition unit and an exposure adjusting unit, is provided. The image processing method includes the following steps: obtaining a first image by the image capturing unit, generating an average brightness of a dark part of the first image by the image processing unit; recognizing the first image by the image recognition unit; generating a first average brightness of a human face by the image processing unit and generating a first exposure value according to the average brightness of the dark part of the first image, the first average brightness of the human face and a weight array, when the human face is recognized from the first image; and adjusting an exposure of the first image according to the first exposure value by the exposure adjusting unit.
An imaging apparatus includes: a zoom lens unit that forms image light on an imaging unit; a zoom ring that is provided around the zoom lens to be manually rotated; a rotation detection unit including: a slit member that includes a plurality of blades that are spaced apart from one another in a rotation direction and is rotated by being connected to the zoom ring, and a sensor that detects rotation of the slit member and outputs a detection signal; and a lens control unit that adjusts a zoom ratio by driving the zoom lens unit based on the detection signal of the sensor, wherein a rotation ratio of the slit member to the zoom ring is greater than 1.
Portable information device having real-time display with relevant information
A portable information device including a body, a position information portion that is provided in the body and that outputs position information, an image sensor that is provided in the body, a display system that is provided in the body and that displays, on a local field in a screen field, relevant information based on the position information such that the displayed relevant information is overlapped on a real-time image, an input portion that is provided on the body and, by use of which user operates an icon, the icon being displayed on the local field such that the displayed icon is overlapped on the real-time image and an imaging button that is provided, separately from the input portion, on the body and that is operated by user to capture a subject image via the image sensor.
Systems and methods for device communication handshaking
Systems and methods for device handshaking are described. Embodiments for client device and associated wearable device initiated handshaking are described. In certain embodiments, a device such as wearable camera eyeglasses having both high-speed wireless circuitry and low-power wireless circuitry communicates with a client device. The low-power wireless circuitry is used for signaling and to manage power on handshaking for the high-speed circuitry in order to reduce power consumption. An analysis of a high-speed connection status may be performed by a client device, and used to conserve power at the glasses with signaling from the client device to indicate when the high-speed circuitry of the glasses should be powered on.
Content-aware wide-angle images
This specification describes technologies relating to digital images. In general, one aspect of the subject matter described in this specification can be embodied in methods that include the actions of receiving a source wide-angle image; identifying one or more locally salient features of the source wide-angle image; calculating a mapping from the source wide-angle image to a two-dimensional mapped wide-angle image according to constraints using the identified one or more spatially variable salient features; and rendering the mapped wide-angle image using the calculated mapping such that the mapped wide-angle image reduces distortion of the locally salient features relative to the distortion of the source wide angle image.
Extended depth of focus for high-resolution optical image scanning
Methods and systems for acquiring and/or projecting images from and/or to a target area are provided. Such a method or system can includes an optical fiber assembly which may be driven to scan the target area in a scan pattern. The optical fiber assembly may provide multiple effective light sources (e.g., via a plurality of optical fibers) that are axially staggered with respect to an optical system located between the optical fiber and the target area. The optical system may be operable to focus and/or redirect the light from the multiple light sources onto separate focal planes. A composite image may be generated based on light reflected from and/or projected onto the separate focal planes. The composite image may have an extended depth of focus or field spanning over a distance between the separate focal planes while maintaining or improving image resolution.
Non-uniform curve sampling method for object tracking
A method of tracking an object in a plurality of image frames includes receiving an initial contour associated with the edge object in a first one of the image frames. A plurality of first measurement points distributed non-uniformly along the initial contour are determined. The first measurement points are biased to relatively high information portions of the initial contour. A set of subsequent contours are estimated from the initial contour in a second image frame. An identical plurality of second measurement points are determined along each of the set of estimated subsequent contours in the second image frame using the same non-uniform distribution of the first measurement points in the first image frame. The method selects at least one contour of the set of estimated subsequent contours using a confidence measure determined from the second measurement points as distributed along the selected subsequent contour.
360 degree photobooth kiosk
The present invention relates to a kiosk design for an advanced photographic system. More specifically, the present invention relates to a self-contained, automated photobooth kiosk. In embodiments of the invention, the photobooth kiosk is capable of taking a 360 degree panoramic photograph or sequence of photographs of a subject and surrounding background. For instance, a customer of the photobooth kiosk may stand in the center of the photobooth and have his or her picture taken with a plurality of specialized “machine vision” cameras, with the images sent to a central processor such as a computer for processing into a 360 degree panoramic photograph or video clip. After the photo-taking session, the customer may collect prints of the pictures at the kiosk, similar to presently available photobooths. The photobooth kiosk may be fully automated such that no operator is necessary, and all options and features desired by the customer may be self-selected by the customer prior to, during, and after the photo-taking session.
Information processing apparatus, information processing method, and program
There is provided an information processing apparatus including an action recognition unit configured to recognize an action state of a user based on a measurement result obtained by a sensor carried by the user, and a photographing control unit configured to control timing at which a photographing unit carried by the user is allowed to perform photographing based on the recognized action state of the user.
Automatic focus adjustment apparatus and control method therefor
In an automatic focus adjustment apparatus, a setting unit sets, on an image sensor, a first range in which defocus information is detected using a phase difference detection and a second range in which a focus state is detected using a contrast detection. The second range is set so as to include the first range. In a case where the second range is detected by the contrast detection as being in an in-focus state, a control unit changes a control mode into a predetermined control mode in which the driving of the focus lens is limited according to the defocus information in the first range detected by the phase difference detection.
Image capturing apparatus and method for controlling image capturing apparatus
An image capturing apparatus capable of executing autofocus by at least one of a phase difference detection method and a contrast detection method using an image signal obtained from a set focus detection region and from which an imaging optical system and a converter lens are detachable. The image capturing apparatus comprises: a conversion unit configured to convert aberration information indicating a spherical aberration of the imaging optical system based on a magnification and aberration information of the converter lens in a case where the converter lens is mounted; a calculation unit configured to calculate a correction value for correcting a difference between a result of the autofocus and a focus condition of a captured image; and a control unit configured to control a position of a focus lens based on the result of the autofocus that has been corrected using the correction value.
Image processing apparatus, image processing method and program, and image pickup apparatus for processing light field data
An image processing apparatus authenticates whether the same person as a person as a destination of transmission is photographed in light field data as an object, and when the person is photographed as the object, sets a focal distance of an object image of the person as the destination of transmission as a focal distance to be used for refocusing the light field data.
Credential transfer management camera system
A camera detects devices, such as other cameras, smart devices, and access points, with which the camera may communicate. The camera may alternate between operating as a wireless station and a wireless access point. The camera may connect to and receive credentials from a device for another device to which it is not connected. In one embodiment, the camera is configured to operate as a wireless access point, and is configured to receive credentials from a smart device operating as a wireless station. The camera may then transfer the credentials to additional cameras, each configured to operate as wireless stations. The camera and additional cameras may connect to a smart device directly or indirectly (for instance, through an access point), and the smart device may change the camera mode of the cameras. The initial modes of the cameras may be preserved and restored by the smart device upon disconnection.
Peer to peer camera communication
A camera, method and computer program for communicating between a primary camera device and other camera devices comprising: detecting orientation and position of the primary camera device and range of a primary subject in focus on the primary camera device; locating other networkable camera devices for communication; receiving subject data for a real time image of a subject from one or more of the located networkable camera devices; and determining from subject data which networkable camera devices are shooting the primary subject whereby the primary camera can utilize the subject data and image data from both its own detectors and determined network cameras to take a picture of the subject.
Portable digital video camera configured for remote image acquisition control and viewing
A wearable digital video camera (10) is equipped with wireless connection protocol and global navigation and location positioning system technology to provide remote image acquisition control and viewing. The Bluetooth® packet-based open wireless technology standard protocol (400) is preferred for use in providing control signals or streaming data to the digital video camera and for accessing image content stored on or streaming from the digital video camera. The GPS technology (402) is preferred for use in tracking of the location of the digital video camera as it records image information. A rotating mount (300) with a locking member (330) on the camera housing (22) allows adjustment of the pointing angle of the wearable digital video camera when it is attached to a mounting surface.
Directional imaging using camera positioning in light fixtures for minimizing protective window size
The specification and drawings present a light fixture for an imaging camera, where a protective window size requirements for camera imaging in a wide field of view (WFOV) are minimized using directional imaging through the protective window. This can be accomplished by a camera position adjustment according to a predefined algorithm as described herein. This adjustment may be performed using a mechanical motor or manually (using corresponding screws, lever, etc.) to actuate a mechanical mechanism. For example, a four-bar linkage mechanism may be used, which may allow the camera to pivot about a virtual pivot point (or generally, a pivotal area) generated by the intersection of the camera lens bore sight axes (camera lens central axes), e.g., outside of a housing of the light fixture.
Data processing system
The present invention easily realizes synchronization between processor cores in a multicore system. A data processing system receiving a group of data of different kinds from the outside and performing data processes by kinds includes: a plurality of data process control units corresponding to the kinds of the data group and performing data processes on the data group of corresponding kinds; and a memory unit which can be accessed by the data process control units and has a first region storing a value indicating whether the data process by the data process control units can be executed or not. Each of the data process control units updates the value in the first region on completion of preparation for executing the data process of itself and, when the value in the first region becomes a predetermined value, synchronizes start timings of the data processes and executes the data processes.
To calibrate a printer
A method to calibrate a printer in which printing of a first print job is controlled. A target color is obtained from a second print job that is to be printed subsequent to the first print job. Printing of the target color obtained from the second print job is controlled while controlling printing of the first print job. An image of the printed target color is received. The printer is calibrated using the printed target color in the received image and the target color obtained from the second print job.
Mechanism for color management cache reinitialization optimization
A printing system is disclosed. The printing system includes a color management unit having a hash table to store input colors and corresponding output colors and a lookup table (LUT). The printing system also includes one or more processors to reinitialize the hash table based on a hash table time and a interpolation time derived from concurrent real time measurements.
Image processing apparatus, image processing method, and storage medium
An image processing apparatus is capable of appropriately extracting a frame of an output target from a moving image. The image processing apparatus includes an analysis unit configured to analyze a plurality of analysis regions in each of a plurality of frames included in the moving image, an extraction unit configured to extract the frame of the output target from among the plurality of frames by comparing analysis results of the plurality of analysis regions in each of the plurality of frames analyzed by the analysis unit for each analysis regions corresponding to each other between the plurality of frames, and an output unit configured to output the frame of the output target extracted by the extraction unit.
Document management system, document management method, an image forming apparatus, an analysis server and storage medium
An image forming apparatus of the present embodiment notifies an analysis server of the start and end of a continuous scan scanning a plurality of documents relating to one another. The analysis server collectively analyzes the plurality of pieces of scanned data received between the start of the continuous scan and the end of the continuous scan in response to notification of the end of the continuous scan and transmits one or more storage destination candidates that are output as the results of the analysis to the image forming apparatus. The image forming apparatus outputs the plurality of pieces of scanned data to a storage destination determined from among the one or more storage destination candidates.
Noise suppressing device, image reading device, and image forming apparatus
A noise suppressing device includes a first circuit board not being grounded; a second circuit board connected to the first circuit board through a transmission line including a signal line that transmits a high-frequency signal and a ground line, the second circuit board including a ground layer being grounded; and a high-frequency reducing element that is arranged between the ground layer of the second circuit board and the ground line of the transmission line and that reduces a high-frequency signal excited at the ground line of the transmission line.
Image reading apparatus
An image reading apparatus includes an LED light source, a CCD sensor receiving light reflected from a document irradiated with light from the LED light source, a fan, and a frame housing the LED light source, the CCD sensor and the fan. The fan circulates air in a substantially sealed space formed by the frame. Thus, temperature difference in the image reading apparatus can be reduced while not degrading dust-proof property of the apparatus, and efficient heat radiation to the outside becomes possible. Thus, variation of sensitivity of CCD sensor, deviation of point of focus of image forming system and deviation of reading position caused by temperature increase can be prevented.
Image forming apparatus to store activation application specifying information that specifies an application to be activated on the operating system of the operation unit in response to the image forming apparatus entering a given state, image forming system, and image forming method
An image forming apparatus performs: storing activation application specifying information that specifies an application to be activated on an operating system of an operation unit when the image forming apparatus enters a given state; notifying a main unit of the activation application specifying information; storing the notified activation application specifying information; controlling activation of an application to be activated by then operation unit, which is the application specified with reference to the activation application specifying information according to a state of the image forming apparatus, performing control to cause a display unit to display a screen for accepting an operation on the activated application, and controlling activation of an application to be activated by the main unit, which is the application specified with reference to the activation application specifying information according to the state of the image forming apparatus.
Imaging device assembly
An imaging device assembly that includes a first imaging module frame, a second imaging module frame, and at least one first attachment member including a base positioned within an interior of the first imaging module frame and at least one protrusion extending from the base through a first wall portion of the first imaging module frame to be exposed external to the first imaging module frame, wherein the at least one protrusion is releasably connected to a top portion of the second imaging module frame.
Printing device software management and common interface
The present disclosure is directed to a method for managing printing device software. The method includes receiving, at a computing device, a request to print a document file. The method also includes receiving a selection of a particular printing device with which to print the document file. The method further includes performing a search operation to determine whether a printer driver for the particular printing device is stored on the first computing device. Additionally, the method includes causing a data transfer of the printer driver from a server onto the first computing device over a wide area network upon determining that the printer driver is not stored on the computing device. Further, the method includes converting, using the printer driver, the document file into a print job. The method also includes transmitting, to the particular printing device, instructions to execute the print job.
Image forming system, method of controlling image forming apparatus by using messenger application of mobile device, and the mobile device for performing method
An image forming system to control an image forming apparatus by using a messenger application, a mobile device, and a method are provided. The image forming system includes a mobile device to activate a chat user interface to interface with an account of the image forming apparatus on the messenger application, and sending user messages to control a printing function of the image forming apparatus, a cloud server to receive the user messages from a messenger server, providing response messages of the account of the image forming apparatus in response to the user messages, and communicating with the mobile device in a conversational manner, thus controlling the printing of the image forming apparatus, and an image forming apparatus whose printing is controlled by the cloud server based on the user messages or providing monitoring information of a current status.
Mail processing and delivery within a controlled-environment facility
An incoming physical mail item addressed to a resident of a controlled-environment facility is converted to a digital format mail item, which is associated with the resident and archived in an electronic database. A determination may be made whether the resident is allowed to receive the physical mail item. If so, the digital format mail item may be delivered to the resident as an electronic message, if an electronic message service is available to the resident.
Information processing apparatus, method for controlling processing apparatus, and storage medium
An information processing apparatus includes a display control unit, a generation unit, and a notification unit. The display control unit displays a device for executing a particular function on a display device. The displayed device includes separate webpages and the separate webpages include a webpage for setting to make the particular function usable. In response to a user selecting the device displayed on the display device, the generation unit generates a uniform resource locator (URL). The generated URL represents the webpage for setting to make the particular function usable. The notification unit notifies the URL generated by the generation unit to a web browser included in the information processing apparatus.
Using graphical text analysis to facilitate communication between customers and customer service representatives
Embodiments relate to facilitating communications between customers and customer service representatives. A method for facilitating communications between customers and customer service representatives is provided. The method generates a graph of expressions of a customer. The method generates a graph of expressions of each customer service representative of a plurality of customer service representatives. The method performs a graphical text analysis on the graph for the customer to identify an interaction style of the customer. The method performs a graphical text analysis on the graph for each customer service representative to identify an interaction style of the customer service representative. The method selects a customer service representative from the plurality of the customer service representatives based on the interaction style of the customer and the interaction styles of the plurality of the customer service representative. The method starts a communication between the customer and the selected customer service representative.
Outbound calling center inventory management
Systems and methods for optimizing inventory assignment amongst a plurality of Producers to achieve maximum revenue from a given inventory are provided. The system employs historical analysis of each producer's relative liquidation rate at a given percentage of capacity. The inventory is then assigned to the producers such that the anticipated relative liquidation rate for each producer working the inventory is substantially equal to a target relative liquidation rate.
Customer callback reward system and method
A system, method and non-transitory computer readable medium including computer-executable instructions for handling calls. In an exemplary method of the disclosure, it may be determined whether a call should be transferred from the VSS to an agent based on, for example, agent availability or queue wait times. When it is determined to transfer the call to the agent, it may be determined whether a callback call should be offered to the caller. When it is determined to offer the callback call, one or more time blocks may be provided to which the caller can initiate the callback call to receive higher priority routing. Upon calling back into the system within one of the time blocks, the call may receive preferential routing treatment.
Recording user communications
A call handling platform receives a call placed by a caller. The call handling platform collects data points based on an interaction of the caller with an interactive voice response module during the call, and computes an experience score for the caller. The call handling platform accesses a predetermined first threshold that indicates a first level of caller satisfaction and compares the experience score to the first threshold. Based on the comparing, the call handling platform determines that the caller has a lower level of satisfaction than the first level of satisfaction, and routes the call to a human agent. The call handling platform determines whether an option for recording a call is enabled. Based on determining that the option for recording a call is enabled, the call handling platform initiates recording of the interaction between the caller and the human agent.
Method and apparatus for predicting intent in IVR using natural language queries
An IVR system is disclosed in which customer experience is enhanced by improving the accuracy and intent prediction capabilities of an interactive voice response system. Customers are allowed to make a natural language queries to specify their intent, while the accuracy of traditional IVR systems is maintained by using key features in language along with the customer's past transactions, CRM attributes, and customer segment attributes to identify customer intent.
System and method for determining availability statuses for users
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for determining availability statuses for users of a communication service provider system. One of the methods includes obtaining data identifying a plurality of availability status features for a user of a communication service provider system and a respective weight for each of the availability status features; determining a respective current value of each of the availability status features; and determining an aggregate user availability status based at least in part on the current values of the availability status features and on the weights for the availability status features.
Communication systems and methods for using shared channels to increase peak data rates
The present disclosure generally pertains to systems and methods for communicating data. In one exemplary embodiment, a system has a high-speed channel, such as an optical fiber, between a network facility, such as a central office (CO), and a first intermediate point between the network facility and a plurality of customer premises (CP). Digital communication links, such as DSL links, are used to carry data between the first intermediate point, such as a feeder distribution interface (FDI), and a second intermediate point, such as the Distribution Point (DP). Non-shared links may then carry the data from the second intermediate point to the CPs. The links between the two intermediate points are bonded to create a high-speed, shared data channel that permits peak data rates much greater than what would be achievable without bonding. In some embodiments, multicast data flows may be prioritized and transmitted across a set of connections to each of the intermediate points. In addition, it is possible to power components at the intermediate points from one or more of the CPs.
Method, terminal device and storage medium for displaying information
The present disclosure discloses a method, a terminal device and a storage medium for displaying information in the terminal device. The method includes: acquiring service option information with an information type identifier of a yellow-pages number, and displaying a service option corresponding to the service option information on a contact page of the yellow-pages number according to the information type identifier. With the present disclosure, by displaying the service option corresponding to the service option information in the contact page of the yellow-pages number, various service options corresponding to various services provided by a person, a business or an organization, represented by the yellow-pages number, may be added into a contact list and prompt a user without costing excessive manpower and material resources on separate developments for each service, and thus the method is expandable, easy to operate and time efficient.
Mobile cabin panel
A vehicle passenger cabin control system that includes a cabin control panel having an interface that is operable to receive control commands. The cabin control panel is operable to control at least one passenger cabin system in response to a received control command. The cabin control system includes a first wireless data interface. The control system also includes a mobile device that includes a display screen, a user interface operable to receive control commands, and a second wireless data interface to send the control commands to the cabin control panel. Control commands received by the user interface of the mobile device are transmitted by the cabin control panel by the second wireless data interface and the first wireless data interface. The cabin control panel is operable to control at least one passenger cabin system in response to a received mobile control command.
Communication apparatus, method of controlling the same, and non-transitory computer-readable storage medium
A communication apparatus stores data to a storage unit, receives a first request signal from a first other communication apparatus by a wireless communication that complies with a first communication method, determines, if the first request signal is received, whether or not target data to be transmitted is stored in the storage unit, performs, if the target data is determined to be stored in the storage unit, connection processing by using a wireless communication that complies with a second communication method different from the first communication method, and transmits, if the connection processing is performed, target data by using the wireless communication that complies with the second communication method, wherein if the target data is determined to not be stored in the storage unit, the connection processing is not performed.
Disposable connectable wireless communication receiver
A wireless receiver can be connected to a user device, such as a smartphone or a tablet device. The wireless receiver can receive a wireless data communication from a wireless transmitter. The wireless data communication can include a message code that can be compared by the wireless receiver to a receiver code stored at the wireless receiver to determine whether the wireless transmitter was authorized to transmit the wireless data communication, and/or whether the wireless receiver is authorized to use the wireless data communication. The wireless receiver can then decode a message from the wireless data communication and transmit the message to the user device for viewing through an application.
Communication device and method capable of automatic response to incoming call
A method for a communication device to automatically respond to an incoming call is provided. The method includes defining a destination, calculating an average speed of the communication device based on a GPS unit of the communication device, determining whether the average speed is equal to or exceeds a predefined value, disconnecting the incoming call if the average speed is equal to or exceeds the predefined value, forming a predefined message based on the average speed, and transmitting the predefined message to a caller of the incoming call.
Personal computer and mobile phone communications through peer-to-peer connection
An information handling system includes a network interface, a radio frequency interface, and a processor. The processor is configured to receive a call initiation signal from a remote system through the network interface, establish a connection with a portable communication device through the radio frequency interface, and accept a call from the remote system. Additionally, the processor is further configured to route audio signals related to the call between the portable communication device and the remote system.
A mobile telephone has a front wall, a rear wall, a top wall partly continuous with a side face, and a side wall, and includes a vibration-absorbing member between the top wall and each of the rear wall and the side wall, and a cartilage conduction vibration source on the inner side of the top wall. Opposite corner parts of the top wall partly continuous with the side face each serve as a cartilage conduction unit. Or a mobile telephone has a front wall, a rear wall, a top wall, and a side wall, and includes a cartilage conduction vibration source that has a thin shape, that vibrates in a direction perpendicular to the thin shape, and that is affixed to the middle, in the left/right direction, of the inner side of the top wall in a direction parallel to the thin shape.
Method for recoverable message exchange independent of network protocols
A method is described to allow a device to retrieve a message, that is separated into a plurality of fragments, from a data source, wherein the method involves: establishing a first network connection with the data source; receiving a subset of the plurality of fragments; determining the first network connection has ended before completion of said message; establishing one or more subsequent network connections with the data source; and receiving any of the plurality of fragments not within the subset. The characteristics (for example: application protocol, security, speed, reach, bandwidth capability, cost of usage, network type, physical layer type, data-link layer type, or IP address of one or both of the first and second devices) of the first network connection can be potentially different than the subsequent network connections.
Clustering support across geographical boundaries
An approach is presented that provides computer clustering support across geographical boundaries. Inter-node communications are managed in a cluster by having each node operate at the network device driver (NDD) level within the kernel. Multiple types of NDD are utilized (Ethernet, SAN, DISK etc.) to provide redundancy so that nodes can reliably exchange heartbeat. To align with this architecture, for remote nodes, a pseudo NDD is used over Transmission Control Protocol (TCP) based communication interface to work along side other NDDs. Thus, the same packet which is sprayed over the NDDs pertaining to local nodes can be sprayed over the TCPSOCK NDD interface for remote nodes. Nodes (local or remote) receive the same packet and reassemble and process it in the same manner.
Span out load balancing model
This document describes techniques for transporting at least a portion of the data for a remote presentation session via datagrams. In particular, a span-out model is described whereby a remote presentation session can be associated with multiple channels and each channel can be routed through a different gateway computer system. As such, a connectionless oriented channel for a client may be routed through a first gateway computer system and a connection oriented channel for the client may be routed through a second gateway computer system. In addition to the foregoing, other techniques are described in the claims, the attached drawings, and the description.
Live data as a service and corresponding programming infrastructure
Techniques for live data management are described. Some embodiments provide a Live Data Management System (“LDMS”) that provides a facility for managing live data objects and for efficiently developing client-server applications that utilize such live data objects. Live data objects are modules of computation that exist on both a client side and server side portion of a client-server application. Live data objects are configured to monitor changes to data hosted on or accessible via the server side, and to automatically update the client side without the need for polling or other requests made by the client side. The described techniques facilitate efficient software development of Web-based client server applications.
Control device, and method for transfer control
Upon reception of a connection request from a client terminal, a control device couples a providing server that provides a virtual desktop environment to the client terminal. The control device then causes the client terminal to transfer a file maintained in the client terminal to the providing server to which the client terminal is coupled, according to correspondence information in which path information in the client terminal is associated with path information in the virtual desktop environment for each file used by the client terminal for executing an application in the virtual desktop environment. This facilitates file transfer on the client terminal side for transferring the file to a server in the virtual desktop environment.
Adjustment to managed-infrastructure-as-a-service cloud standard
An arbitrary customer instance is transferred from a customer environment to a target managed-infrastructure-as-a-service cloud environment as a transferred image. An image adjustment plan, capturing at least one adjustment required to render the transferred image compliant with standards of the target managed-infrastructure-as-a-service cloud environment, is formulated. The image adjustment plan is executed to adjust the transferred image to obtain an adjusted image compliant with standards of the target managed-infrastructure-as-a-service cloud environment. The adjusted image is on-boarded into the managed-infrastructure-as-a-service cloud environment as a standard image thereof.
Selective download of alternate media files
Methods, systems, and computer readable media can be operable to facilitate delivery of multiple media renditions of multimedia content to a subscriber. The methods, systems, and apparatuses described herein enable the identification and retrieval of one or more preferred or requested media renditions of multimedia content. A subscriber device can maintain a list of media attributes preferred by the subscriber device and/or one or more users with access to the subscriber device, wherein the list includes preferred media attributes in order from the most requested/received attribute to the least requested/received attribute. When the subscriber device receives a request for multimedia content, the subscriber device can identify one or more media attributes preferred by the subscriber, and media renditions of the multimedia content having an identified preferred media attribute can be downloaded to the subscriber device.
Network data retrieval
An apparatus includes a processor and a storage storing instructions causing the processor to: receive a request for data concerning a target node and neighboring nodes; multiply an identifier of the target node with an index multiplier to determine a location of an index entry of the target node within an index data; access the index entry to retrieve an identifier of a window and an indication of a location within the window at which a node entry of the target node may be accessed, and to retrieve an indication of data size of the node entry; access the node entry within the identified window to retrieve an amount of the node entry up to the data size to retrieve at least one identifier of at least one neighboring node within a single degree of separation of the target node; and output the at least one identifier.
Systems and methods for managing shared content based on sharing profiles
Content items stored in an online content management service can be organized and shared. Content items can be associated with sharing profiles that include various sharing-specific metadata, such as details of how an item is shared or with whom it is shared. In some embodiments, the metadata stored in the sharing profiles can be used to organize shared content into shared folders automatically and/or to sort a list of content items.
Network traffic management using port number redirection
A first request is received from a device over a network. It is determined that the first request should be redirected, based at least in part on information included in the first request. A redirect message is sent to the device over the network. A second request is received that includes the address and the port number. Responsive to determining that the port number is on the predetermined list of port numbers, modifying the second request by removing the port number. The modified second request is sent to the address.
Assessment of content delivery services using performance measurements from within an end user client application
A system for measuring and monitoring performance of online content is provided. In one embodiment, the system includes an intermediary device, such as a web proxy, that receives client requests for content, such as requests for web pages. The device obtains the requested content, modifies it by applying one or more performance optimizations, and serves it to the client. The device also inserts code into the content for execution by the client to gather and report data reflecting, e.g., how quickly the client is able to get and process the content. The code includes information identifying the modifications the device made, and this is reported with the timing data, so that the effect on performance can be analyzed. In other embodiments, the device selects one of multiple versions of content, and the inserted code contains information identifying the selected version. The foregoing are merely examples; other embodiments are described herein.
Aided passive listening
An aided passive listening system is configured to identify an audio signal using a listening mobile communication device enabled with a listening application; identify one or more other mobile communication devices within a predetermined distance of the listening mobile communication device that are enabled with the listening application; and push an action associated with the audio signal to the listening mobile communication device and the one or more other mobile communication devices within the pre-determined distance.
Peer-to-peer data migration
Examples are disclosed for peer-to-peer data migration between nodes coupled via one or more peer-to-peer communication links.
Integration of user interfaces for different physically distributed medical applications
A system, method and computer program product are disclosed for integrating a user interface of external or foreign applications, running on second physical machines, into a user interface of a first application running on a first physical machine. In an embodiment, the generated integrated user interface is displayed on a monitor of the first physical machine. The applications refer to MR-scanning and post-processing applications. The user is only working with one single, common and integrated user interface although he controls two different sets of applications on different machines.
Locked files for cartridges in a multi-tenant platform-as-a-service (PaaS) system
Implementations for locked files for cartridges in a multi-tenant Platform-as-a-Service (PaaS) system are disclosed. A method of the disclosure includes identifying, by a processing device of a multi-tenant Platform-a-a-Service (PaaS) system, an operation requested to be performed by the multi-tenant PaaS system, determining access contexts for the identified operation with respect to a cartridge associated with the operation, the access context comprising a user or component that is attempting to access a file of the cartridge for the identified operation, accessing a locked files manifest of the cartridge, the locked files manifest identifying at least one of files or directories of the cartridge to which a cartridge author of the cartridge restricts access to application developers utilizing the cartridge to execute an application, and applying access permissions to the cartridge according to the determined access contexts and the locked files manifest.
System and method for backend control of frontend user interfaces
A system and method for transmitting data using a data transfer protocol, including receiving, at the first device, a request object from the second device, receiving, at the first device, a response object in response to the request object, transforming the response object by appending a one or more logical expressions for controlling at least one user-interface component of an application hosted at the second device, varying the format of the response object to generate a transformed response object, and sending the transformed response object to the second device.
Communication device, information processing device, program, and reader/writer providing system
A communication device includes an IC (integrated circuit) chip storing information in a predetermined area and functioning as a reader/writer that reads out or writes information stored in another IC chip. Also, the communication device downloads an agent from an information processing device connected to the network. Here, the agent is provided as application software operating the IC chip as a reader/writer. Furthermore, the communication device downloads a role from the information device connected to the network using the agent downloaded therefrom, where the role is provided as script data in which part of the contents of processing of the reader/writer performed by the agent.
Modular and scalable digital multimedia mixer
A modular multimedia platform includes a chassis into which a variety of modular input/output units, referred to as ports, may be inserted. The units may acquire an input signal and convert it to high precision digital information, or convert a digital signal to an analog signal and output the analog signal (or digital output may be provided). Multiple chassis can be connected together to increase the number of ports. A tag unit may be attached to any device coupled to a port. Each tag has a unique identification number to uniquely identify the device to which it is attached.
System for optimising wireless data downloads
A system (10) for optimizing wireless data downloads is described. An embodiment of the system is manifest as a file server (18) comprising: a data storage device (22) adapted to store multimedia content; and a wireless access point (36) adapted to wirelessly interconnect, via a wireless data signal, the data storage device (22) to a wireless device (52), the file server (18) being configured to wirelessly transmit selected portions of the stored multimedia content to the wireless device (52), and being characterized by: a directional signal strength gauge (60) configured to determine the strength of the wireless data signal at the wireless device and to determine a direction (72) from the wireless device to the wireless access point.
Method and apparatus for transceiving data packet for transmitting and receiving multimedia data
A method for transmitting complex multimedia data is provided. The method includes selecting one of a data headers composed of basic transmission units determined according to an amount of multimedia included in the complex multimedia data, generating a basic transmission unit of the complex multimedia data according to the selected data header, packetizing the complex multimedia data in the basic transmission unit; and transmitting the packetized complex multimedia data to a receiver.
Latency differential mitigation for real time data streams
Techniques for mitigating effects of differing latencies associated with real time data streams in multimedia communication networks. For example, a technique for mitigating a latency differential between a first media path and a second media path, over which a first device and a second device are able to communicate, includes the following steps. A training phase is performed to determine a latency differential between the first media path and the second media path. Prior to the first device switching a media stream, being communicated to the second device, from the first media path to the second media path, the first device synchronizes the media stream based on the determined latency differential such that a latency associated with the switched media stream is made to be substantially consistent with a latency of the second media path.
Systems and methods of distributed silo signaling
The embodiments described herein recite a telephone communication system used for handling information such as messages, typically voice mail messages, and, more particularly, is directed to a system that provides distributed session initiation protocol (SIP) silos. Distributed SIP silos (DSS) is a Communications Application Platform (CAP) feature that maintains the site's call capacity even when a signaling server fails. DSS uses multiple non-redundant signaling servers to provide SIP signaling for the same set of media ports. Because there are multiple signaling servers providing signaling for the same set of ports, the failure of one signaling server only terminates the calls it was actively processing and once those calls have been cleaned up, all the available (non-suspended) ports in the configuration are available to the remaining signaling servers.
Information processing apparatus and determination result providing method
An information processing apparatus includes a determination unit configured to determine whether a first communication port used by a first communication protocol is available and whether a second communication port used by a second communication protocol is available; and a determination result display unit configured to display a determination result for the first communication port and a determination result for the second communication port individually on a display unit.
Network node security using short range communication
Systems (100) and methods for network node security configuration. The methods involve: performing operations by a mobile communication device (104) to obtain a unique identifier from a network node (108) to be installed at a customer facility (102) via a first short range communication link (110); communicating a signal comprising the unique identifier from the mobile communication device to a remote server (118) via a first long range communication link (112); verifying by the remote server that a correct type of network node is being installed at a first location within the customer facility according to a respective work order; and communicating security information, useful for configuring security functions of the network node, from the remote server to the network node via the mobile communication device, without presenting the security information to a user of the mobile communication device or storing the security information in the mobile communication device.
Data access policies
To verify compliance with a data access policy, a query result including data specified by a requesting entity and a representation of a data access policy is received from a database. Based on the representation of the data access policy included in the query result, it is verified whether the requesting entity is permitted to access the data included in the query result. Transmission of the data included in the query result to the requesting entity is controlled responsive to the verification. Related methods, systems, and computer program products are also discussed.
Security enhancements for a software-defined network with network functions virtualization
A communication network can be constructed to support software-defined networking (SDN) protocols and network functions virtualization (NFV) protocols. Such a communication network can advantageously be operated at lower costs, increased flexibility and control, and with simplified management to name but a few. In addition to these advantages, various networking security aspects can be enhanced by leveraging the SDN/NFV architecture.
Accessing SSL connection data by a third-party
A method, system, and apparatus are directed towards enabling access to payload by a third -party sent over an SSL session. The third-party may be a proxy situated between a client and a server. SSL handshake messages are sent between the client and the server to establish the SSL connection. As the SSL handshake messages are routed through the proxy, the proxy may extract data. In addition, one of the client or the server may send another message within, or out-of-band to, the series of SSL handshake message directly to the proxy. The other SSL message may include secret data that the proxy may use to generate a session key the SSL connection. With the session key, the proxy may receive SSL messages over the SSL connection, modify and/or transpose the payload within the received SSL messages, and/or terminate the SSL connection at the proxy.
Systems and methods for preventing the execution of online malvertising
A computer-implemented method for preventing the execution of online malvertising may include (1) maintaining a database of software version information for at least one client device, (2) detecting a request from the client device to access a website that contains active advertising content, (3) identifying, by querying the database of software version information, a vulnerability in at least one software element on the client device that may be used to deliver the active advertising content, and (4) preventing delivery of the active advertising content to the client device. Various other methods, systems, and computer-readable media are also disclosed.
Method and apparatus for automating threat model generation and pattern identification
A method and system for automating threat model generation and pattern identification for an application includes identifying components of an application, and receiving security information that identifies whether security measures were implemented within the application to secure the application against security threats. The method further receives an identification of external events, and receiving first patterns from one or more first virtual assets. A database is populated with the first patterns and the external events and then second patterns are received and compared to the first patterns. The method and system include distributing the identification of the one of the external events to the one or more second virtual assets, if the second patterns are similar to the first patterns, according to one embodiment.
Security with respect to managing a shared pool of configurable computing resources
Disclosed aspects include management of a shared pool of configurable computing resources having a first region and a second region. Using an analysis technique such as a heuristic technique, an asset is accessed for processing of a transfer of the asset from the first region to the second region. Based on accessing the asset for processing of the transfer of the asset from the first region to the second region, a potential security exposure is identified with respect to processing the transfer of the asset from the first region to the second region. Based on the potential security exposure, a corrective action is determined and performed.
Site security monitor
Techniques for monitoring site security are disclosed herein. Sites are scanned for security metric values associated with one or more security metrics. Normalized values for those scanned security metric values are calculated based on previously obtained values associated with one or more other security metrics associated with other scanned sites. Site security metrics are then calculated for the sites based on a subset of the normalized values and based at least in part on a comparison to other scanned sites.
Technologies for secure personalization of a security monitoring virtual network function
Technologies for secure personalization of a security monitoring virtual network function (VNF) in a network functions virtualization (NFV) architecture include various security monitoring components, including a NFV security services controller, a VNF manager, and a security monitoring VNF. The security monitoring VNF is configured to receive provisioning data from the NFV security services controller and perform a mutually authenticated key exchange procedure using at least a portion of the provisioning data to establish a secure communication path between the security monitoring VNF and a VNF manager. The security monitoring VNF is further configured to receive personalization data from the VNF manager via the secure communication path and perform a personalization operation to configure one or more functions of the security monitoring VNF based on the personalization data. Other embodiments are described and claimed.
Power line communication (PLC) network nodes using cipher then segment security
Embodiments of the invention provide systems and methods for a cipher then segment approach in a Power Line Communication (PLC). A node or device generates frames to be transmitted to a destination node in the PLC network. A processor in the node is configured to generate a data payload comprising data to be sent to the destination node. The processor divides the data payload into two or more payload segments and encrypts the payload segments. The processor creates a frame for each of the encrypted payload segments, wherein each frame comprises a message integrity code. The processor creates a segment identifier for each frame using the message integrity code and an authentication key that is shared with the destination PLC node. The segment identifier is added to each frame.
Account registration and login method, and network attached storage system using the same
An account registration method for a network attached storage system is provided. The method includes transmitting an open ID and network attached storage information to a cloud management server; transmitting the open ID to a social network service server to perform a verification procedure on the open ID; if the verification procedure is passed, receiving security information corresponding to the open ID from the social network service server and recording the open ID, the security information, and the network attached storage information in the cloud management server; transmitting the open ID to a network attached storage; transmitting login information corresponding to the network attached storage to the user terminal, wherein the login information is generated by the network attached storage according to the open ID; and recording the open ID and the login information in the user terminal.
Method for sending contents including tracking information and apparatus thereof, and method for receiving content including tracking information and apparatus thereof
A method for transmitting contents including tracking information is described. The method comprising the steps of generating a content transmission stream relevant to an original content, determining at least part of the original content as a forensic mark (FM) target segment, generating a FM stream including the FM segment in which a particular pattern is inserted into the FM target segment and a FM stream different from the content transmission stream and transmitting the content transmission stream and the FM stream to a receiving device, wherein the FM stream is combined with the content transmission stream based on session information related to the transmitting in the receiving device.
Differential security policies in email systems
A differential message security policy includes receiving information regarding activities of a user, determining a security risk for the user based on the activities of the user, and setting a security policy for the user based on the security risk. The security policy of the user may be modified based on a change in the security risk of the user or the security risk of the user exceeding a predetermined level. The security risk may be determined based on an aggregated scoring system that uses security variables related to the activities of the user.
Method and apparatus for determining phishing website
Disclosed are a method and an apparatus for determining a phishing website. The method comprises: a server determining whether a target website accessed by a client is a gray website, the gray website being a website neither in a preset blacklist nor in a whitelist; the client acquiring the browsing information of the gray website in the local client, and determining whether the browsing information meets a preset condition; if yes, determining that the gray website is a non-phishing website; if not, the client acquiring the domain name feature information of the gray website, and when the domain name feature information conforms to a pre-configured rule, determining that the gray website is a phishing website. Through the present disclosure, when the server cannot determine whether the website accessed by the client is a phishing website, or when the server fails, the latest generated phishing website can be intercepted the first time at the client, and most of the phishing websites can be intercepted, thereby ensuring the network security.
Methods and apparatus for premises content distribution
Apparatus and methods for protected content access, browsing and transfer over a network. In one embodiment, the network comprises a premises (e.g., residential) Local Area Network (LAN), and the apparatus comprises a server and renderer consumer premise equipment (CPE). The renderer CPE scans the network to search for a server CPE that implements a compatible security framework. The renderer authenticates itself with the server, and the server allows content browsing and selection access only to an authorized and authenticated renderer. A negotiation and exchange protocol comprises messages exchanged between the renderer and the server that include one or more of device identification, encryption key exchange, digital certificates and information regarding security package used by each CPE.
Systems, methods, and media for authenticating multiple devices
Systems, methods, and media for authentication are provided. In accordance with some implementations, the system comprises: a hardware processor that is programmed to: receive, from a device, a message relating to an authentication status of a user account associated with the device; transmit an authentication request to the device that is transmitted to an authentication server; receive, from the device, a response to the authentication request that includes authentication data relating to a session corresponding to the user account on the authentication server; cause an interface to be presented that requests authorization to authenticate the device with the authentication server using the user account; and transmit the authentication data to the device that causes the device to retrieve a corresponding authentication token from the authentication server, wherein the corresponding authentication token authenticates the user account on the device.
System, design and process for easy to use credentials management for accessing online portals using out-of-band authentication
The invention provides an easy to use credential management mechanism for multi-factor out-of-band multi-channel authentication process to protect user access to online portals. When opened, the client processing application generates a multi-dimensional code. The user scans the multi-dimensional code and validates the client processing application and triggers an out-of-band outbound mechanism. The portable mobile device invokes the authentication server to get authenticated. The authentication server authenticates the user based on shared secret key and is automatically allowed access to the online portal. The process of the invention includes an authentication server, a client processing application to generate an authentication vehicle or an embodiment (i.e. multi-dimensional bar code) and handle incoming requests, secret keys and a portable communication device with a smartphone application.
Authentication system and authentication method
Provided is an authentication system in which a client terminal that receives input of request information is connected to a server that executes a process with regard to the request information. The client terminal includes: a first authentication information generation unit that generates first authentication information based on information which is shared with the server; an encryption unit that generates encryption information; and a transmission unit that transmits the request information and encryption information to the server. The server includes: a reception unit that receives the request information and encryption information; a second authentication information generation unit that generates second authentication information; a decoding unit that generates reference information which is acquired by decoding the encryption information using the same common key method as in the client terminal while using the second authentication information as a key; and an authentication unit that compares the request information with the reference information.
Performing biometrics in uncontrolled environments
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for receiving an enrollment biometric identifier of a user. Determining a matching threshold based on a characteristic of the enrollment biometric identifier of the user. Storing the matching threshold in an enrollment profile for the use in association with the enrollment biometric identifier.
Seamless authentication mechanism for user processes and web services residing on common host
Techniques are presented herein for authenticating local process to a web service, both executing on a common host computer server. The local process may present a self-signed certificate to the web service. In response, the web service may identify a file system directory on the first computer server containing a file storing the self-signed certificate. If the subject information identifying the owner of the process matches file system metadata indicating an owner of the file, then the web service may consider the process as being authenticated to the web service.
Multimedia personal historical information system and method
Disclosed is a mobile and web-based personal history capture-store-retrieval process and system intended to be used by individuals or groups (including companies and educational institutions) to record personal historical information in multimedia file format from any source, such as the individual's smartphone, tablet, or personal computer. The system will assist individuals in the recording and storage and retrieval of the individual's (or group's) personal histories. The system employs an artificial intelligence engine to analyze user content (e.g., information, data, metadata, and historical content associated with such user) and design prompts to the user to input additional information. The system also provides a method for creating an e-book from the content, either by a single user or by collaboration among multiple users. Disclosed also is a computer implemented method and system and related computer program product for capturing, storing, retrieving and disseminating personal and/or group legacy and history information.
Systems and methods for automatically identifying and removing weak stimuli used in stimulus-based authentication
Systems and methods for identifying a weak stimulus in a stimulus-based authentication system is provided. Counters are associated with each stimulus used in the authentication and a first counter is incremented when the stimulus is used in an authentication session and a second counter is incremented when a successful event occurs with respect to the stimulus during the authentication session, but the authentication session ultimately fails. A ratio of the second counter and the first counter is compared to a threshold and the stimulus is identified as weak when the ratio exceeds the threshold. The stimulus may then be removed and no longer be used in the stimulus-based authentication system.
Roaming internet-accessible application state across trusted and untrusted platforms
In one embodiment, a user device may store state data for an application at an internet-accessible data storage 124 for access by other devices of the user. The target user device 140 may use an untrusted platform 142 to generate an access request 300 for an application state data set for a source application 114. The target user device 140 may send the access request 300 to the internet-accessible data storage 124. The target user device 140 may send an access credential 330 to the internet-accessible data storage 124.
Internet of things datapoint engine
Techniques allow owners of Internet of Things (IoT) devices to provide specific access to data from their IoT devices to requesters of data. A request for data from one or more IoT devices is received from one or more requesters, and the request is provided to the owner of the one or more IoT devices. An indication of acceptance by the owner is provided for at least one of the requests from the requesters. A public key of a public/private key pair associated with each of the accepted requester(s) is received. A plurality of datapoints from the one or more IoT devices is also received. For each of the selected requester(s), at least one datapoint of the plurality of datapoints is encrypted with the public key of the requester. The encrypted at least one datapoint is then sent to the requester, where the requester can decrypt the encrypted at least one datapoint using the private key of the public/private key pair.
Authenticated time-of-flight indoor positioning systems and methods
This disclosure describes systems, methods, and computer-readable media related to testing tools for devices. In some embodiments, a plurality of public keys may be received from a server via a secured network connection where each of the plurality of keys corresponds to a respective private key associated with an access point. A time-of-flight (ToF) measurement protocol may be initiated with one or more access points. Data generated by ToF measurement protocol with the one or more access points may be received. In some embodiments, the one or more access points may be authenticated based at least in part on the plurality of public keys. A location of a user device may be determined based at least in part on the received data.
Firewall security for computers with internet access and method
A firewall security platform is provided for enhancing security of a network. The firewall security platform includes at least one interface to communicate the identity and current status of one or more traffic requesters and at least one device for receiving instructions from a user. Communication data packets associated with the one or more traffic requesters are allowed for communication via the network or denied and blocked by the firewall security platform based on the current status of each of the one or more traffic requesters. The user's instructions include making a selection, with the selection including members that are at least one of the one or more traffic requesters. The current status of each member of the selection is altered in response to the making of the selection.
Mobile cellular network backhaul
A mobile cellular network (MCN) communication system can provide an independent mobile cellular network to devices within a covered area. In addition, the MCN communication system can communicate with other MCN communication systems using a wireless standard that is similar to the wireless standard used to communicate with user equipment within the covered area. In some instances, the MCN communication system can be registered as a user equipment of another MCN communication system and/or have another MCN communication system registered with it as a user equipment.
Determining expiration time of bindings for network address translation devices
Methods and apparatuses, including computer program products, are described for determining expiration time of bindings for NAT devices. A first device receives a first request including a first source IP address/port pair of a first NAT binding, and transmits a response. The first device receives a second request including a second source IP address/port pair of a second NAT binding, and transmits a response. The first device sets a refresh time T1 of the first NAT binding to be shorter than an expected minimum expiration time of the first NAT binding, transmits one or more messages via the second NAT binding where a sending interval time T2 of the second NAT binding is longer than T1, increments T2 when a response is received, and if a response to any of the messages is not received, sets T1 equal to the last T2 value for which a response was received.
Direct transmission of data between applications in a multi-tenant environment
Overhead of sending data from one application to another by doing input and output processing can be costly. The present invention provides a method of transmitting data with a low overhead between applications in a multi-tenant runtime environment. The multi-tenant runtime detects a connection between tenants, and then performs low-overhead data transmission mechanisms by cloning data from one tenant space to another tenant space, while keeping the data isolated for two tenants.
Workflow and in-context e-mail recipient handling
Various technologies and techniques are disclosed that improve the workflow process for resolving data elements, such as email addresses. These technologies and techniques allow the user to perform such tasks in the same context as the activity or message. In addition, user can start and stop the resolution process at any point in the process of composing the activity or email. The activity cannot be finalized, such as an email message being sent, until all of the data elements are resolved.
Method and system for on-demand communities
In an embodiment, communities are generated on demand. In this specification a community is a group of webpages in which users share ideas with one another by posting ideas and sending messages for one another to read. An on-demand community is a community that may be created via tools specialized for creating communities, with just a few keys strokes and/or mouse clicks and by adding information (e.g., about the members and/or the topic or set of topics that the community is focused upon), such that a community maybe established within a short amount of time, such as a few minutes or a few hours. Optionally, the communities may be initially populated with ideas related to a particular topic or set of topics. Optionally, each member may be provided with tools for establishing one or more profile page and/or one or more friend pages.
Switching of a transmit queue associated with a virtual machine
Methods and systems for managing multiple transmit queues of a networking device of a host machine in a virtual machine system. The networking device includes multiple transmit queues that are used by multiple guests of the virtual machine system for the transmission of packets in a data communication. A hypervisor of the virtual machine system manages the switching from one or more transmit queues (i.e., old transmit queues) to one or more other queues (i.e., new transmit queues) by managing a flow of packets in the virtual machine system to maintain a proper sequence of packets and avoid a need to re-order the transmitted packets at a destination.
Method for setting capacity of buffer
The present invention is directed to method for setting capacity of a buffer, the method including an initializing step of initializing a plurality of sub-buffers forming a main buffer, a comparison data reception step of receiving a storage frequency and a remaining capacity from the plurality of sub-buffers and comparing the storage frequency with the remaining capacity, a data comparison step of determining whether a current storage frequency of the plurality of sub-buffers and a past storage frequency are equal, a set capacity calculation step of calculating an allocation capacity of the plurality of sub-buffers, and a capacity re-setting step of re-setting the capacity of the plurality of sub-buffers using the calculated allocation capacity.
Cell processing method and apparatus
A cell processing method and apparatus are provided. The method includes: obtaining, by a first sending end, a first timestamp compensation time; adding, by the first sending end, the first timestamp compensation time to a first timestamp carried in a first cell, where the first timestamp is a sending time of the first cell; and sending, by the first sending end to a receiving end, the first cell that is added with the first timestamp compensation time, so that the receiving end forwards the first cell according to the first timestamp that is added with the first timestamp compensation time. In the present invention, a first timestamp compensation time is added to a first timestamp carried in a first cell, which improves cell forwarding efficiency of the receiving end and prevents the occurrence of cell accumulation in a link.
Method and apparatus for enabling communications and features in storage area networks
In one embodiment, a method for enabling communication between two network fiber channel (FC) switches, includes: receiving at least one protocol frame at a first network FC switch, the at least one protocol frame being received from a second network FC switch connected to the first network FC switch and comprising information related to a manufacturer of the second network FC switch; retrieving a first identifier of the second network FC switch from the at least one protocol frame, the first identifier comprising primary manufacturer information identifying a manufacturer of the second network FC switch; determining that the retrieved first identifier does not match one of a plurality of peer switch manufacturer identifiers stored in a memory of the first network FC switch, each of the plurality of peer switch manufacturer identifiers identifying peer switches for which one or more features may be enabled for communicating with the first network FC switch; retrieving a second identifier of the second network FC switch from the at least one protocol frame when the retrieved first identifier does not match one of the plurality of peer switch manufacturer identifiers, the second identifier comprising secondary manufacturer information identifying the manufacturer of the second network FC switch; and upon determining that the retrieved second identifier matches one of the plurality of peer switch manufacturer identifiers, updating the plurality of peer switch manufacturer identifiers stored in memory of the first network FC switch to include the retrieved first identifier; and enabling at least one of the one or more features for the first network FC switch to communicate with the second network FC switch.
Integrated server with switching capabilities and network operating system
Methods, systems, and computer programs are presented for a switching server. One switching server includes a server, a switch module coupled to the server, and a switch controller coupled to the server and to the switch module. The server includes a processor executing an operating system that includes a network driver, and the network driver includes a first network device operating system (ndOS) program. Further, the switch module includes a switch fabric and input/output ports. The switch controller includes a processor and non-volatile storage, where the processor is configured to execute a second ndOS program. The first and second ndOS programs implement a global networking policy for a plurality of devices executing ndOS programs, the global networking policy including a definition for switching incoming packets through the plurality of devices executing the ndOS programs.
Network management systems for use with physical layer information
One exemplary embodiment is directed to a network management system that uses physical layer information in performing a network management function. Another exemplary embodiment is directed to a method of tracking channel compliance using physical layer information.
Method of dynamically renumbering ports and an apparatus thereof
Embodiments of the apparatus of dynamically renumbering ports relate to a network chip that minimizes the total logic on the network chip by limiting the number of states that needs to be preserved for all ports on the network chip. Each pipe on the network chip implements a dynamic port renumbering scheme that dynamically assigns a relative port number for each port assigned to that pipe. The dynamic port renumbering scheme allows for internal parallelism without increasing the total amount of state space required for the ports on the network chip.
Acquiring resource lease using multiple lease servers
The obtaining of a lease on a resource in a circumstance in which multiple lease servers are capable of granting a lease to the resource. A computing entity attempts to obtain the lease on the resource by causing a lease request to be sent to each of at least most (and perhaps all) of the lease servers. In response, the computing entity receives one or more responses to the lease requests. If the computing entity receives grants of a lease from a majority of the lease servers that are capable of granting a lease to the resource, then it is determined that the computing entity acquired a lease on the resource. On the other hand, if the computing entity receives grants of a lease from less than a majority of the lease servers, it is determined that the computing entity failed to acquire the lease on the resource.
Automatically configuring computer network at hospitality establishment with reservation-specific settings
A system includes a storage device for storing details of a plurality of reservations of a hospitality establishment. A particular reservation includes a set of reservation-specific settings affecting behavior of the computer network at the hospitality establishment during the reservation. The settings may include a registered device setting for affecting behavior of a computer network at the hospitality establishment toward a user device having a specified device identifier. The system further includes a clock unit for tracking time, and a system controller coupled to the computer network and having access to the storage device and the clock unit. The system controller automatically configures one or more network components of the computer network when a start time of the particular reservation is reached in order to activate the reservation-specific settings.
Load adaptation architecture framework for orchestrating and managing services in a cloud computing system
According to one aspect of the concepts and technologies disclosed herein, a cloud computing system can include a load adaptation architecture framework that performs operations for orchestrating and managing one or more services that may operate within at least one of layers 4 through 7 of the Open Systems Interconnection (“OSI”) communication model. The cloud computing system also can include a virtual resource layer. The virtual resource layer can include a virtual network function that provides, at least in part, a service. The cloud computing system also can include a hardware resource layer. The hardware resource layer can include a hardware resource that is controlled by a virtualization layer. The virtualization layer can cause the virtual network function to be instantiated on the hardware resource so that the virtual network function can be used to support the service.
System and method for supporting service resources and feature sets in a cloud platform environment
In accordance with an embodiment, described herein is a system and method for providing service resources for consumption by an application deployed to a service in a cloud environment. A service definition package (SDP) for the service can specify a dependency on a provider, and include association rules that define actions to be taken with regard to a runtime of the provider. When the service is provisioned, a service resource type which is derived from a provider SDP can be associated with the service. As a result of the association, a service resource can be automatically created from the service resource type in accordance with the association rules, to provide resources for consumption by the application. In accordance with an embodiment, the provider SDP can include a plurality of feature sets associated with different sets of configurable properties, which allows different provider types or service resource types to be created.
Enhanced mechanisms for granting access to shared resources
Mechanisms are provided, in a data processing system comprising a plurality of nodes, each node being a computing device, for controlling access to a critical section of code. These mechanisms send, by a sender node of the data processing system, an access request for requesting access to the critical section of code. The critical section of code is a portion of code that accesses a shared resource. The mechanisms receive, in the sender node, from a plurality of receiver nodes in the data processing system, responses to the access request. Each response in the responses includes a number of active nodes perceived by a corresponding receiver node that transmitted the response. The mechanisms control, by the sender node, access to the critical section of code based on the number of active nodes identified in each of the responses received from the receiver nodes.
Large receive offload for virtual machines
A network interface controller (NIC) that includes a set of receive NIC queues capable of performing large receive offload (LRO) operations by aggregating incoming receive packets is provided. Each NIC queue turns on or off its LRO operation based a set of LRO enabling rules or parameters, whereby only packets that meet the set of rules or parameters will be aggregated in the NIC queue. Each NIC queue is controlled by its own set of LRO enabling rules such that the LRO operations of the different NIC queues can be individually controlled.
Exploratory linktrace operations in a computer network
In one embodiment, an exploratory linktrace is initiated from an initiating network device with an exploratory linktrace message (ELM) having a target address. Each network device receiving the ELM may then propagate the ELM on a plurality of its ports to a plurality of downstream network devices based on the target address. In addition, each receiving network device returns an exploratory linktrace reply (ELR) for each of the plurality of ports, where each ELR is returned according to one or more mechanisms to mitigate stormed replies to the initiating network device.
Proactive identification of hotspots in a cloud computing environment
The present invention proactively identifies hotspots in a cloud computing environment through cloud resource usage models that use workload parameters as inputs. In some embodiments the cloud resource usage models are based upon performance data from cloud resources and time series based workload trend models. Hotspots may occur and can be detected at any layer of the cloud computing environment, including the server, storage, and network level. In a typical embodiment, parameters for a workload are identified in the cloud computing environment and inputted into a cloud resource usage model. The model is run with the inputted workload parameters to identify potential hotspots, and resources are then provisioned for the workload so as to avoid these hotspots.
Client-side fault tolerance in a publish-subscribe system
To provide client-side fault-tolerance in a publish-subscribe system, a message is received on a channel from a server. At a function executing using a processor and a memory, a determination is made whether the message contains a heartbeat data. When the message contains the heartbeat data, a determination is made whether a content signature contained in the message matches a last known content signature saved from a previous message. When the content signature contained in the message does not match the last known content signature saved from a previous message, a refresh message is sent to the channel.
Telemetry monitoring apparatus
There is disclosed a telemetry monitoring apparatus for remotely monitoring a plurality of users, such as firefighters, working in a hazardous environment. The apparatus comprises a plurality of portable devices, each arranged to be associated with breathing apparatus worn by a user, and at least one central monitoring station onto which portable devices can be logged on and monitored. The portable devices are arranged to transmit a logon message including an identifier identifying either the user or the portable device.
Reporting serving cell packet loss rate
According to one embodiment, an apparatus may include a memory and a processor. The memory may store control information. The processor may determine, based at least in part upon the control information, an expected packet loss rate associated with performing a radio operation. The processor may then communicate the expected packet loss rate to a network node.
Monitoring SMS messages related to server/customer interactions
A system, method and/or computer program product monitors delivery of text messages related to network traffic between a user's electronic system and a server. A capture server captures a network traffic message from a user's electronic system to a solution server. In response to capturing a request for specific information from the solution server, the capture server captures a related text message from the solution server to a text message gateway. The capture server then monitors a text message log within the user's electronic system, which contains a record of text messages received by the user's electronic system. In response to the text message log containing no record of the text message from the solution server within a predetermined length of wait time, the capture server generates and transmits an alert message to the solution server.
Identifying compatible web service policies
Methods, systems, and devices are described for identifying compatible web service policies between a web service and a web service client. A first and second set of one or more identifiers linked to web service policies supported by the web service and web service client may be calculated, respectively. The sets of identifiers may be compared. Using the comparison, a number of common identifiers present in the first set of one or more identifiers linked to the web service policies supported by the web service and the second set of one or more identifiers linked to the web service policies supported by the web service client may be identified. Using the number of common identifiers, a web service policy of the web service compatible with a web service policy of the web service client may be identified.
Determining impact of network failures
Generally described, systems and methods are provided for detecting the impact of network failures. The system collects performance information from a plurality of nodes and links in a network, aggregates the collected performance information across paths in the network, processes the aggregated performance information for detecting failures on the paths, adjusts the set of performance information by removing the performance information for any nodes considered to be associated with performance information that is statistically different from performance information from other nodes at a given location or extrapolates the collected information to other paths, and determines the impact to customers of the network failures detected using the adjusted set of performance information.
Mobile client-driven network transitions
Methods and apparatuses for implementing a mobile client network transition are provided. In an embodiment, a network transition priority list including measured quality-of-service data for each of a plurality of networks within communications range of a mobile client is received. Each of the plurality of networks is ranked in accordance with one or more network administrator policies. An updated network transition priority list is generated based on the ranking of the plurality of networks, and the updated network transition priority list is transmitted to the mobile client.
Extensible interoperability of network devices
The subject system allows network devices utilizing any number of networking technologies (including to-be-developed technologies) to access a common abstraction layer and/or the network operations facilitated by a common abstraction layer. The subject system allows a device that is added to a network to communicate whether existing devices on the network should retrieve communication protocol information for facilitating communication with the added device from a remote server. For example, the devices may locally store communication protocol information for certain network technologies, e.g. legacy network technologies, while information corresponding to other network technologies may not be locally stored. The added device may provide a resource locator to the existing devices for accessing the communication protocol information from the remote server. The existing network devices may retrieve the communication protocol information via the resource locator, and may utilize the communication protocol information to facilitate communication with the added device.
Automation of information technology system development
A program product and system that implements a method for adding an Information Technology (IT) structure A to an IT structure X. A first list of all dependencies of elements in a composition of X is received. It is determined that no dependency of any element E in the composition of X in the first list has an exclusion with a class Y to which A belongs. A second list of all dependencies of A is received. It is determined that no dependency of A in the second list has an exclusion with a class Z to which an element E in the composition of X belongs. It is determined that no dependency of any element E in the composition of X in the first list has an exclusion with a class Y to which A belongs and ensuring that A's dependencies are satisfied followed by adding A to X.
Device for indicating packet processing hints
Devices and techniques for indicating packet processing hints are described herein. A device may receive a data packet. The device may extract a match-action attribute from the data packet that specifies an action to be applied to the data packet. The device may generate a hint field based on the match-action attribute. The hint field may include information to be used for handling the data packet. Other embodiments are also described.
A method for determining a popularity of an online identity includes identifying an online identity for which a popularity measurement is to be determined, and identifying one or more other online identities based, at least in part, on their being within a specified number of degrees of separation of the online identity. Popularity measurements for the other online identities are accessed and aggregated, and a popularity measurement for the online identity is determined based on at least the aggregated popularity measurements for the other online identities. A computer readable medium includes instructions for generating a graphical user interface for enabling a determination a more popular online identity of two online identities. The graphical user interface includes a first identifier specification mechanism that enables specification of an identifier of a first online identity, and a second identifier specification mechanism that enables specification of an identifier of a second online identity. The graphical user interface includes a display of an indication of whether a popularity of the first online identity exceeds a popularity of the second online identity.
Adaptive channel prediction and mitigating interference in OFDM systems
One embodiment provides an apparatus. The apparatus includes an optimization module configured to determine a guard interval remainder based, at least in part on a comparison of an allowable microreflection interference level and an actual microreflection interference level; and a windowing module configured to window an OFDM (orthogonal frequency division multiplexed) symbol utilizing the guard interval remainder. The apparatus may further include a channel estimator module configured to determine a predicted channel frequency response based, at least in part, on a probing symbol; and a pre-equalizer module configured to pre-equalize the OFDM symbol based, at least in part, on the predicted channel frequency response.
Low PAPR waveform for mmW
Methods and systems for signal transmission in millimeter wave (mmW) range. A set of sequences is used to encode a data signal for one layer in a group of layers. Each sequence in the set of sequences has a length equal to the number of resources shared among the group of layers. At least a portion of the sequences have a low density of non-zero values, and the non-zero values are assigned to a subset of the shared resources. Each sequence assigns a non-zero value to at most one resource of the subset of shared resources, and all non-zero values assigned by all sequences have equal power amplitudes.
Apparatus and method for sending and receiving broadcast signals
A broadcast signal receiver is disclosed. A broadcast signal receiver according to an embodiment of the present invention comprises a synchronization & demodulation module performing signal detection and OFDM demodulation on a received broadcast signal; a frame parsing & deinterleaving module performing parsing and deinterleaving of a signal frame of the broadcast signal; a demapping & decoding module performing conversion of data of at least one Physical Layer Pipe (PLP) of the broadcast signal into the bit domain and FEC decoding of the converted PLP data; and an output processing module outputting a data stream by receiving the at least one PLP data.
Method and system for estimating and compensating for direct current (DC) offset in ultra-low power (ULP) receiver
Provided is a method of estimating a Direct Current (DC) offset in an Ultra-Low Power (ULP) receiver. The method includes receiving a signal from an output of an Analog to Digital Converter (ADC) in the ULP receiver. The signal includes a correlated variable DC component for at least one of an in-phase arm and a quadrature arm of the ULP receiver. The method also includes estimating a DC offset compensation parameter in a plurality of phases for a plurality of stages based on the received signal such that the estimating includes calculating the DC offset compensation parameter in a magnitude estimation phase for the plurality of stages and calculating the DC offset compensation parameter in a sign estimation phase for the plurality of stages.
Decision feedback equalizer robust to temperature variation and process variation
A decision feedback equalizer includes a positive signal line, a negative signal line, a sense amplifier, a feedback driver, a load unit, a differential driver, and a charge pump. The differential driver maintains a difference between the first voltage of the positive signal line and the second voltage of the negative signal line at a last time point of the normal period to be equal to or greater than the reference voltage by adjusting strength of the positive input current corresponding to a positive input signal and strength of the negative input current corresponding to a negative input signal based on a temperature signal. The charge pump provides a positive offset voltage and a negative offset voltage to the positive signal line and the negative signal line, respectively. The positive offset voltage and the negative offset voltage are used to maintain an average voltage of the first voltage and the second voltage at the last time point of the normal period at a first value.
When a channel between a transmission apparatus and a reception apparatus is distorted by multipath fading or other reasons, linear interpolation between pilot subcarriers produces a large estimation error, resulting in an increase in an equalization error and a decrease in reception performance. The present invention allows feedback of a signal that undergoes error correction, reduction in the channel estimation error through repeated channel estimation, and improvement in the reception performance.
System and method for adjusting clock phases in a time-interleaved receiver
Clock timing skew may occur during operation of a time-interleaved receiver. It would be beneficial to try to determine if there is timing skew, and if there is, then address it, such as by reducing or eliminating some or all of the timing skew. Embodiments are described herein that may achieve this. In one embodiment, a method includes generating at least two clocks having the same frequency but a different phase. Intersymbol interference (ISI) values are then determined, one for each of the clocks, by: for each clock, sampling a signal using the clock and determining a value representing ISI based on the sampled signal. A clock phase of at least one of the clocks is adjusted in response to at least one of the ISI values being different from a reference ISI value.
Systems and methods for adaptively-tuned digital self-interference cancellation
A method for adaptively-tuned digital self-interference cancellation comprises receiving a digital transmit signal; receiving a transform configuration; generating a set of signal components from the digital transmit signal; transforming the set of signal components into a digital self-interference cancellation signal according to the transform configuration; combining the digital self-interference cancellation signal with a receive signal to form a digital residue signal; detecting a trigger; in response to detecting the trigger: computing a ratio of the digital residue signal to the digital transmit signal; converting the ratio to the frequency-domain to form a frequency-domain-converted ratio; computing a frequency-domain self-interference channel between the transmitter and the receiver based on the frequency-domain-converted ratio; computing an inverse discrete Fourier transform matrix based on a portion of the discrete Fourier transform matrix; converting the frequency-domain self-interference channel to form a time-domain self-interference channel; and updating the transform configuration based on the time-domain self-interference channel.
Processing interference in a wireless network
Interference is processed in a waveform received at a device in a wireless network, the received interference comprising non-linear products of at least a first signal (C1) at a first carrier frequency and a second signal (C2) at a second carrier frequency. A complex composite baseband signal is generated comprising at least the first and second signal at baseband, occupying a respective first and second frequency range within a composite baseband frequency range and not overlapping in frequency. The complex composite baseband signal is processed by applying at least a first non-linear function (74a) to generate simulated interference comprising at least one simulated non-linear product. The received interference is then processed in dependence on the simulated interference.
Techniques for realizing service chaining
Techniques for realizing service chaining, a corresponding apparatus and an SDN (Software Defined Network) controller are disclosed. The method includes temporarily modifying an original destination MAC (media access control) address of a packet and an original source MAC address the packet during the time the packet makes a hop from one middlebox to another. A restore operation is used to restore the original source and destination MAC addresses after the hop is made.
Negative acknowledgment of tunneled encapsulated media
A system for performing negative acknowledgment for real-time communications establishes a tunnel by a tunneling server with a tunneling client of a user equipment (UE). The system receives a request from the UE to enable the negative acknowledgment for an inner socket of the tunnel and sends a response back to the UE to indicate that the negative acknowledgment is enabled for the inner socket. The system receives a plurality of frames from the UE on the inner socket, where each frame includes a sequence number. The system, for each frame received, determines an inter-frame delay using the sequence number, and based on the inter-frame delay determines one or more missing frames. The system then sends an identity of the missing frames to the UE on the inner socket.
Controller area network with flexible data-rate
In a method for serial communication of data frames between nodes connected by a bus system, the transmitter and receiver roles are assigned to the nodes for each data frame by the arbitration procedure defined in the CAN-Standard ISO 11898-1. The exchanged data frames, which include multiple bits, have a logical structure according to the CAN-Standard ISO 11898-1, including a Start-Of-Frame-Bit, an Arbitration Field, a Control Field, a Data Field, a CRC Field, an Acknowledge Field and an End-Of-Frame Field. Each bit has a bit time which is divided into Time Segments. In response to a predefined value of a specific bit within the Control Field a first node of a first node group restarts its protocol decoding state machine and waits until it has synchronized itself to the bus activity and a second node of a second node group communicates using CAN FD Specification protocol.
Appliance network with messaging
A home network comprises at least one appliance having an appliance interactive display and an appliance communication module, a server having a server communication module, and a mobile device having a mobile interactive display and a mobile communication module. The mobile device or server is configured to send a message having an embedded interactive element to the at least on appliance when the server communication module or the mobile communication module is in communication with the appliance communication module.
Simple mesh network for wireless transceivers
A method of operating a node of a network is disclosed. The method includes receiving a data frame having a header with plural addresses. The node determines if a first address of the plural addresses is an address of a descendant of the node and if a second address of the plural addresses is a parent address of the node. If so, the node changes a second address of the plural addresses to its own address in response to the step of determining. The node then transmits the data frame to at least one descendant of the node.
Multicast broadcast single frequency network data scheduling and handling
A system is provided for scheduling for a multicast broadcast single frequency network (MBSFN). The system includes a central control configured to promote a plurality of enhanced node Bs (ENBs) transmitting one or more multicast traffic channels (MTCHs). The one or more MTCHs are provided during a variable scheduling period (SP) and include a data portion that contains MBSFN traffic content and a variable scheduling portion that contains scheduling information related to the MBSFN traffic content.
Method for proof of play (PoP) of digital signage content
Provided a proof of play (PoP) method of a digital signage terminal and a digital signage server, the PoP method of the digital signage terminal including obtaining a digital signature and a PoP message generation policy provided by a content owner, generating log data comprising information on a play of at least one piece of content, based on the PoP message generation policy, generating a PoP message using information on the digital signature based on the generated log data, and providing the PoP message to at least one of the digital signage server and the content owner.
Explicit list encoding of sparse multicast group membership information with Bit Index Explicit Replication (BIER)
A network device executes a method to forward a packet that is encoded using an explicit list encoding of sparse multicast group membership information with Bit Index Explicit Replication. The method includes receiving a packet that includes a bitstring having a list of Bit Forwarding Router IDs (BFR-ids). The method further includes selecting a BFR-id identifying a destination Bit Forwarding Router (BFR) from the list for processing, looking up a forwarding bitmask for the destination BFR and a next-hop to reach the destination BFR in a bit index forwarding table, creating a copy of the packet, clearing the selected BFR-id from the packet, clearing BFR-ids from the packet and the copy of the packet based on the forwarding bitmask, and forwarding the copy of the packet to the next-hop neighbor.
Determining an identifier
A method for determining an identifier on the basis of a multiplicity of cells is proposed, wherein the cells are subdivided into subsets, wherein the fact of whether a reconstructable information item is determinable is ascertained for each of the subsets, wherein, if a reconstructable information item is determinable for a subset, the reconstructable information item is determined and stored, wherein, if a reconstructable information item is not determinable for a subset, an error information item is determined and stored for this subset.
Securing multimedia content via certificate-issuing cloud service
A media server authenticates a user of a client device. The media server retrieves or generates a shared key stored at the media server, encrypts the shared key with a hash based on web session attributes of the client device. The server provides the encrypted private key to the client device after authentication of the user. The media server provides encrypted media content to the client device in response to a request from the client device. The client device decrypts the shared key and decrypts the encrypted media content with the decrypted private key.
Method and system for backing up private key of electronic signature token
Provided are a method and system for backing up a private key in an electronic signature token, the method comprising: a first electronic signature token and a second electronic signature token negotiate an encryption strategy and a corresponding decryption strategy to use for communication therebetween; the first electronic signature token utilizes the encryption strategy to encrypt a request data packet and transmits the encrypted request data packet; the second electronic signature token decrypts the encrypted request data packet; the second electronic signature token utilizes the encryption strategy to encrypt a response data packet and transmits the encrypted responses data packet; and the first electronic signature token utilizes the decryption strategy to decrypt the response data packet, and acquires a private key from the response data packet.
Key management in secure network enclaves
A hierarchical key generation and distribution mechanism for a computer system in which devices are organized into secure enclaves. The mechanism enables network access to be tailored to approximate minimum needed privileges for each device. At the lowest level of the hierarchy, keys are used to form security associations between devices. Keys at each level of the hierarchy are generated from keys at a higher level of the hierarchy and key derivation information. Key derivation information is readily ascertainable, either from identifiers for devices or from within messages, supporting hardware offload of cryptographic functions. Because keys may be generated based on the enclaves in which the hosts participating in a security association are located, the system includes a mechanism by which devices can discover the enclave in which they are located.
Comparison and search operations of encrypted data
Searching for desired data within an encrypted set of data (using a fully homomorphic encryption) without decrypting the set of data. A lookup key is compared against a set of encrypted data, employing characteristics of the fully homomorphic encryption, to locate and return desired data correlated to the lookup key.
Phase locked loop, wireless communication apparatus and wireless communication method
A phase locked loop has an integer phase detector to detect an integer phase by measuring a cycle number, a fractional phase detector to detect a fractional phase of smaller than one cycle between a reference signal and the oscillation signal, a frequency error generator to generate a frequency error signal between the reference signal and the oscillation signal, a glitch corrector to correct the frequency error signal to generate and output a glitch-corrected signal and the frequency error signal, a phase error generator to generate a phase error by integrating an output signal of the glitch corrector, an oscillator controller to control an oscillation frequency of the oscillation signal, and a synchronous detector to detect whether a phase of the reference signal and a phase of the oscillation signal are in an phase-lock state, and to stop detection of the integer phase when the phase-lock state is detected.
Serdes with high-bandwith low-latency clock and data recovery
The present application is directed to data communication. More specifically, embodiments of the present invention provide a SerDes system that includes multiple communication lanes that are aligned using a clock signal. Each of the communication lanes comprises a receiver, a buffer, and a transmitter. The receiver uses multiple sampling lanes for data sampling and clock recovery. Sampled data are stored at the buffer and transmitted by the transmitter. There are other embodiments as well.
Apparatus and methods for asynchronous clock mapping
Apparatus and methods for asynchronous clock mapping are provided herein. In certain configurations, an upstream server of a transport network generates clock difference data indicating a time difference between a server clock signal and a client clock signal, which have an asynchronous timing relationship with respect to one another. The clock difference data is generated with high precision by using one or more time-to-digital converters (TDCs). The clock difference data is included in a transmitted data stream, and is used by a downstream server to recover client information with enhanced accuracy.
Method and apparatus for using serial port in time division multiplexing manner
A method and an apparatus for using a serial port device in a time division multiplexing manner are provided. The apparatus includes a first serial port, a second serial port, a switching circuit, and a signal interface, where the switching circuit selects to receive data sent; the first serial port sends first data to a first serial port device; the second serial port receives second data sent by a second serial port device, and when it is determined that the second data indicates that the second serial port device needs to receive third data sent by the second serial port, instructs the switching circuit to select to receive the third data sent; and the second serial port sends the third data to the second serial port device. Therefore, the first serial port and the second serial port can use corresponding serial port devices in a time division multiplexing manner.
Method and apparatus for signal interference processing
Aspects of the subject disclosure may include, for example, obtaining a schedule of transmission segments in an uplink of a communication system, determining a threshold for detecting signal interference in at least one transmission segment of a plurality of transmission segments according to the schedule of transmission segments in the uplink, and detecting signal interference in the at least one transmission segment of the plurality of transmission segments according to the threshold.
Dynamic inter-frame space processing in high efficiency wireless LAN
The present invention relates to a transmission and receiving method and apparatus using a dynamically determined Inter-Frame Space (IFS) in a Wireless Local Area Network (WLAN). According to one aspect of the present invention, a method for processing a received frame by a Station (STA) in a WLAN may include receiving a first frame including downlink data for a plurality of STAs, if the received first frame has no error, transmitting a second frame including an ACKnowledgement (ACK) of the STA simultaneously with ACKs of one or more other STAs, and if the received first frame has an error, performing carrier sensing using a variably determined IFS.
User equipment, a radio base station, RBS, and methods therein for transmitting a subframe comprising at least two reference signals, RSS, to the RBS
A method in a UE comprises: receiving, from an RBS, information regarding a base sequence and a first phase rotation speed of the base sequence; determining an order, L, of the IFDMA, indicating a spacing between subcarriers over which the base sequence is to be mapped in the frequency domain; generating an RS-specific second phase rotation speed of the base sequence based on a CS pseudo random offset; increasing at least the second phase rotation speed based on L; combining the first and the increased second phase rotation speeds to obtain a third phase rotation speed, and performing phase rotation of the base sequence based on the third phase rotation speed; and mapping the phase rotated base sequence to every L:th subcarrier of the RSs, and transmitting the RSs.
Method and a system for performing virtualization of a radio access technology over orthogonal frequency-division multiple access (OFDMA) wireless networks and computer program products thereof
A method for performing virtualization of a radio access technology (RAT) over Orthogonal Frequency-Division Multiple Access (OFDMA) wireless networks is provided. The method includes splitting OFDMA time-frequency resources into non-overlapping regions including a virtualization region including a part of a spectrum and the OFDMA symbols that are reserved for virtualization of the RAT; reserving resource elements of the OFDMA time-frequency resources in the virtualization region, for insertion of downlink reference signals including complex sequences known by a receiver to perform downlink channel estimation with a specified separation between signals in time and frequency domains; inserting training or pilot signals along the OFDMA time-frequency resources of the virtualization region; and mapping complex baseband symbols corresponding to information from the RAT into the OFDMA time-frequency resources of the virtualization region.
Receiver and method of receiving
An arrangement for detecting signaling data from bootstrap Orthogonal Frequency Division Multiplexed (OFDM) symbols in the frequency domain, which can provide a more accurate estimate of the signaling data than other arrangements that operate in the time domain. The arrangement includes detecting a cyclic shift of a signature sequence, which has been applied to represent the signaling data, as an average phase change between each of the sub-carriers of the bootstrap OFDM symbol. As a result the signaling data can be more accurately detected or detected at lower signal to noise ratio.
Orthogonal frequency division multiple access with carrier sense
A communication system in which an access point and one or more devices communicating through the access point adaptively apply Orthogonal Frequency Division Multiple Access (OFDMA). The access point may assign orthogonal subcarriers to devices as in conventional OFDMA, but the access point senses activity on the subcarriers and selects subcarriers without activity for assignment. In an alternative approach, a device that is configured for OFDMA communication may receive a channel assignment from a device that does not support OFDMA. The OFDMA-capable device may use only a portion of the subcarriers in the assigned channel, which may be communicated to the non-OFDMA device. During the non-OFDMA device may then ignore unused subcarriers in error detection and correction to avoid incorrectly classifying communications as erroneous. Information about OFDMA capabilities, subcarrier assignments and subcarriers in use may be communicated as information elements in network control communications, such as beacons and probe messages.
Transmission of symbols in a MIMO environment using Alamouti based codes
A method for transmitting data in a multiple-input-multiple-output space-time coded communication using a mapping table mapping a plurality of symbols defining the communication to respective antennae from amongst a plurality of transmission antennae and to at least one other transmission resource. The mapping table may comprise Alamouti-coded primary segments and may also comprise secondary segments, comprising primary segments. The primary segments in the secondary segments may be defined in accordance to an to Alamouti based code pattern applied at the segment level to define a segment-level Alamouti based code.
Transmission method, reception method, transmission apparatus, and reception apparatus
The present invention relates to transmission and reception of digital broadcast in a digital broadcast network supporting a configuration of multiple physical layer pipes (PLPs). In particular, signalling parameters relating to a complete PLP are transmitted within layer 1 signalling related to the PLP. The baseband frames mapped on the pipe are configured according to this layer 1 signalling in the same way at the transmitter as they are demapped on the receiver side. The baseband frames are transmitted and received without including these parameters, in particular, at least one of parameters indicating (i) an input stream format, (ii) a single or a multiple input stream, (iii) constant or adaptive coding and modulation, (iv) presence of input stream synchronization, (v) presence of null packet deletion, or (vi) input stream identifier.
Transmitting apparatus and mapping method thereof
A transmitting apparatus is disclosed. The transmitting apparatus includes an encoder to perform channel encoding with respect to bits and generate a codeword, an interleaver to interleave the codeword, and a modulator to map the interleaved codeword onto a non-uniform constellation according to a modulation scheme, and the constellation may include constellation points defined based on various tables according to the modulation scheme.
Method, apparatus, and system for generating timestamp
The present patent application provides a method, an apparatus, and a system for generating a timestamp. The method includes: receiving, by a data packet processing unit, a data packet sent by a physical layer transceiver unit or an upper layer, and identifying whether the data packet is a precise time synchronization protocol PTP data packet, and if the data packet is a PTP data packet, generating, according to a physical layer delay provided by a physical layer delay acquiring unit and a non-physical layer delay provided by a non-physical layer delay acquiring unit, a precise timestamp and rewriting a timestamp field in the data packet.
Optimizing parameters in deployed systems operating in delayed feedback real world environments
Optimizing parameters includes, during a time interval, rotating from setting a first parameter to a first value for a first time period, to setting the first parameter to a second value for a second time period such that the time interval includes multiple first time periods in which the first parameter is set to the first value sequenced with multiple second time periods in which the first parameter is set to the second value; obtaining, for the time interval, a first set of ratings corresponding to the first time periods and a second set of ratings corresponding to the second time periods; averaging, for the time interval, the first set of ratings to a first average rating and the second set of ratings to a second average rating; and correlating the first average rating to the first value and the second average rating to the second value.
Systems and methods for calibrating multiple input, multiple output (MIMO) test systems and for using the calibrated MIMO test systems to test mobile devices
MIMO test systems and methods are provided that eliminate the need for a wired connection between the test system and the antenna ports of the DUT, thereby eliminating the need to open up the housing of the DUT and risk damaging or destroying it. The MIMO test systems and methods also eliminate the need for an anechoic chamber, thereby eliminating the cost and space requirements associated therewith. A suitable non-anechoic, electromagnetically-shielded chamber can be used in the test system that is much less expensive and that has a much smaller spatial footprint than a typical anechoic chamber used in MIMO test systems.
Systems and methods for enhancing spectral efficiency in a communication network
A transmitter implements a method of transmitting data in a network. The transmitter encodes and transmits to a receiver a first transmission utilizing the first MCS level with a first quality level. The first quality level is higher than a prior quality level associated with the prior MCS level. The transmitter receives an indication that the transmission was received at the receiver with an error rate less than a first threshold. The transmitter encodes and transmits to the receiver a second transmission that is longer than the first transmission. The second transmission uses a second MCS level with a second quality level. The second quality level is between the prior quality level and the first quality level. The transmitter receives an indication that the transmission was received at the receiver with an error rate less than a second threshold. The transmitter utilizes the second MCS level to transmit data.
Electronic device and signal transmission method
An electronic device includes a signal sender that sends a pair of transmission signals of mutually opposite phases to an external device via a pair of transmission paths. The signal sender differentiates each amplitude of the pair of transmission signals.
Interaction methods and systems
The present application provides an interaction method and system, and relates to the field of information interaction. The method comprises: in response to contact between a user body and an object, receiving a wave signal that is sent by the object and is transmitted by using a medium comprising at least a part of the user body. The system comprises: a receiving apparatus, configured to: in response to contact between a user body and an object, receive a wave signal that is sent by the object and is transmitted by using a medium comprising at least a part of the user body. The interaction method and system can help a user to naturally and efficiently complete an information interaction process, simplify an interaction process, and improve the interaction efficiency.
56 Gbps PAM4 driver module for Mach Zehnder modulator
A PAM4 driver with at least 56 Gbps speed for driving a Mach-Zehnder modulator. The PAM4 driver is configured as 2-bit CMOS digital-to-analog convertor including a drive control module for receiving a pair of incoming differential digital data and generating a first processed reference signal and a second processed reference signal. The PAM4 driver further includes a mirrored buffer circuit to produce two sets of four voltage levels. Furthermore, the PAM4 driver includes a decoder module controlled by a switch bias control module configured to decode each of the two sets of four voltage levels for generating a first output signal and a complementary second out signal with 4 independently adjustable analog levels for driving the Mach-Zehnder modulator with close ended termination resistor.
Semiconductor arrangement and formation thereof
A semiconductor arrangement and a method of forming the same are described. A semiconductor arrangement includes a first layer including a first optical transceiver and a second layer including a second optical transceiver. A first serializer/deserializer (SerDes) is connected to the first optical transceiver and a second SerDes is connected to the second optical transceiver. The SerDes converts parallel data input into serial data output including a clock signal that the first transceiver transmits to the second transceiver. The semiconductor arrangement has a lower area penalty than traditional intra-layer communication arrangements that do not use optics for alignment, and mitigates alignment issues associated with conventional techniques.
Physical layer management configured active optical module with native and non-native network element support
Systems for a PLM configured active optical module (AOM) with native and non-native-network element support are provided. A system includes a non-native network element having a first port with a first inventory interface; a first pluggable AOM installed in the first port and coupled to the first inventory interface, where in response to a request to read a standard table entry the first pluggable AOM provides PLM information to the non-native network element in a format complying with a MSA or a standard for the inventory interface; an extended network element having a second port with a second inventory interface; and a second pluggable AOM installed in the second port and coupled to the second inventory interface, where in response to a request to read a non-standard table entry, processing devices provide PLM information to the extended network element in a format for a physical layer management system.
Timing correction for a DOCSIS Edge-Qam
Disclosed are techniques for timing correction for a DOCSIS Edge-QAM. Unlike the DTI required at the headend in existing solutions for DOCSIS Edge-QAM timing, the disclosed techniques may use an Edge-QAM timing deeper in to the network. The N-QAM, referring to an Edge-QAM that is deeper in the network, may be in the optical node configured to convert signals from a network headend or hub for delivery to a subscriber network element. The N-QAM device located in the node may include a local clock for deriving a local time for incoming transport streams, modulating the transport streams onto a downstream carrier for delivery to subscriber network elements using the local clock time, and adjusting the local clock time based on an average value of timestamps in the incoming transport streams.
Visible light communication method, identification signal, and receiver
A visible light communication method is provided that includes obtaining a first ID indicating a default interpolation ID previously stored in a receiver. The method also includes obtaining a second ID, by the receiver, through visible light communication with a light source, and generating a third ID, by the receiver, by combining the first ID and the second ID. The method further includes obtaining, by the receiver, information from a server using the third ID, which is a combination of the first ID and the second ID.
Survivable hybrid optical/electrical data center networks using loss of light detection
Systems and methods are disclosed for data communication by forming a hybrid that includes an electrical switching network with packet granularity of switching and store-and-forward forwarding services to network traffic and an optical switching network providing circuit granularity of switching and optical bypassing services to network traffic; applying local control of optical switching modules in the optical switching network with a network controller coupled to the electrical switching network, the optical switching network, and a loss-of-light detection module; and detecting loss-of-light in a failure point in the optical switching network and rerouting traffic to avoid the optical failure point.
Provision of broadband access to airborne platforms and ground terminals using fixed satellite service and direct broadcast satellite spectra
Systems and methods are described that use the downlink and uplink frequency bands of the fixed satellite service (FSS) and direct broadcast service (DBS) systems to provide broadband access to aerial platforms including aircraft, drones, and unmanned aerial vehicles (UAVs) such as balloons. The secondary service aerial platform transmitters are configured to avoid interference into the primary satellite service receivers. The aerial platform may be able to detect and connect to the cell site with the strongest signal. The aerial platform may be able to handoff from one cell site to another. Systems and methods are described that provide broadband access to ground terminal via aerial platforms such as drones and UAVs such as balloons.
A device that dynamically selects between multiple antennas to provide a best antenna selection for a wireless link between the device and an access point. The device may have a switch connected to multiple antennas and may instruct the switch to select from the antennas in order to improve a signal quality of the wireless link regardless of orientation of the device or obstructions in proximity to the device. For example, the device may determine a first signal strength associated with the wireless link using a first antenna and a second signal strength associated with the wireless link using a second antenna and may select the first antenna or the second antenna based on the first signal strength and the second signal strength.
Wireless feedback system and method
A codebook C is provided in a MIMO transmitter as well as a MIMO receiver. The codebook C will include M codewords ci, where i is a unique codeword index for each codeword ci. Each codeword defines weighting factors to apply to the MIMO signals, and may correspond to channel matrices or vectors to apply to the MIMO signals prior to transmission from the respective antennas of the MIMO transmitter. The present invention creates codeword subsets Si for each codeword ci of the codebook C. Each codeword subset Si defines L codewords cj, which are selected from all the codewords ci in the codebook C. The codewords cj in a codeword subset Si are the L codewords in the entire codebook that best correlate with the corresponding codeword ci.
Lighting unit with near field communication, integrated circuit and methods therefor
A lighting unit is described comprising: a microcontroller; and a near field communication (NFC)-enabled embedded device comprising NFC shared memory configured to be written to by both an external NFC reader/writer using near field communication and the microcontroller and configured to enable an operation of the lighting unit to be both monitored and controlled using NFC. In this manner, the operation of a lighting unit may be monitored using NFC and controlled by using one of two approaches, such as via a microcontroller within the lighting unit and/or a near field communication, NFC, via the NFC-enabled embedded device; wherein the microcontroller comprises or is coupled to a metering circuit configured to measure a power usage for the lighting unit and store the measured power usage in the shared NFC memory; and wherein the stored power usage for the lighting unit is accessible by the external NFC reader/writer for use in at least one of: a billing system, a lighting unit testing or lighting unit component testing operation, in a calibration of a metering function.
Positioning guidance for increasing reliability of near-field communications
To promote ease of use, as well as a reduction in bit error rates during extended data exchange between a coupled NFC tag/reader pair, signal strength is measured from a plurality of NFC tag antennas each positioned differently with respect to a common reader field, and differences in signal strength are used to determine an optimum positioning of the tag, or tag emulator, with respect to the reader. Alternative embodiments may include signal time of flight for determining orientation of the NFC antennas within the reader field. Information is generated by the tag, or tag emulator, and output by the tag, or tag emulator, such that a user may direct the positioning of the tag, or tag emulator, for improved communication with the reader.
Method and solution of data transmission from the transponder to the reader, especially in payment solutions with a mobile communication device
The method and solution can be mainly used for data transmission in cashless payment applications, especially those realized from the mobile phone while using RFID and/or NFC platform. The signals with different frequency are combined in antenna system (M) of the receiver (1) and transmitter (2) and then the carrier signal is separated from the result of the combined signals and the transmitted data are demodulated. The difference between the frequencies has a value, that corresponds to the size of the subcarrier frequency to which the receiver (1) is preset.During transmission the transformer connection coefficient can have the value k=0.2-0.001, while the antenna (3) of the receiver (2) is tuned narrowly to the transmitter's (2) frequency without considering the subcarrier frequency. The transmitter is preferably located on a memory card or on a card with a format and interface of a memory card, e.g. micro SD.
Near-field communication system and method, and terminal
Disclosed are near-field communication system, method and terminal. The near-field communication system includes a first terminal and a second terminal configured to: when it is detected that a coupling capacitance between the first terminal and the second terminal is less than a predetermined value, adjust a connection of a driving channel and/or a sensing channel of the second terminal, to adjust the coupling capacitance between the second terminal and the first terminal; and establish communication between the second terminal and the first terminal when it is detected that the coupling capacitance between the first terminal and the second terminal is greater than or equal to the predetermined value.
NBASE-T PHY-to-PHY information exchange method and apparatus
A method of operation in an Ethernet transceiver is disclosed. The method includes initiating a training mode of operation, and transmitting Infofield frames to a link partner. Each Infofield frame including a payload field to provide data to the link partner. A flow of the transmitted Infofield frames is controlled such that a new Infofield frame is not transmitted before a previous Infofield frame is received by the link partner.
Apparatus and method for narrowband data transmission by means of a DSSS transmission system
A system providing a spread spectrum and a narrowband data transmission may comprise a DSSS transmitter and a DSSS receiver. The DSSS transmitter may convert a bit succession (di) into a chip succession (sk) using a chip sequence (cj, cj′) and send a succession of impulses (s(t)) corresponding to the chip succession (sk). The DSSS receiver may receive impulses (s(t)) sent by the transmitter and filter the received impulses (r(t)) using a filter having an impulse response (x(t)) dependent on the chip sequence (cj, cj′). The chip sequence (cj) may be a spread sequence. The narrowband data transmission may use chip sequence (cj′) and a corresponding impulse response (x(t)) of the filter. The chip sequence (cj′) does not comprise a succession having two directly successive arithmetic sign changes and an arithmetic sign change does not occur after the first and before the last chip in the chip sequence (cj′).
Method of sensing flip cover
Provided is a method and devices for sensing a flip cover including determining an angle of the flip cover. A Hall sensor may be included in a mobile terminal (or display terminal) and may include at least one Hall element for collecting a magnetic field intensity generated from a magnet of the flip cover.
Receiving arrangement of a motor vehicle
A receiving arrangement of a motor vehicle has a first antenna array disposed at or on the body of the motor vehicle, and having a second antenna array disposed on a window pane of the motor vehicle. The antenna arrays are coupled to a receiving unit for further processing, in particular, for the demodulation and/or decoding of a respective received signal of the antenna arrays. The receiving unit is directly connected with the first and the second antenna array. The receiving unit, during operation, causes a conversion of a respective received analog signal of the antenna arrays to a respective loss-free transportable digital signal, which the receiving unit provides to a control unit of the receiving unit for further processing.
Multiplexer device with hybrid LC/acoustic filter
A multiplexer device includes at least one acoustic band pass filter connected to a common port, and a hybrid LC/acoustic filter connected to the common port in parallel with the at least one acoustic band pass filter. Each acoustic band pass filter has a corresponding passband and includes multiple acoustic resonators. The hybrid LC/acoustic filter includes at least one acoustic resonator, and has at least one capacitor replaced by a corresponding at least one acoustic resonator, respectively. Each of the at least one acoustic resonator included in the hybrid LC/acoustic filter provides a stopband response when operating in a corresponding acoustic frequency range, and acts as a capacitor when operating in a corresponding non-acoustic frequency range.
Method, apparatus, and computer program product improving registration with real time location services
Systems, methods, apparatuses, and computer readable media are disclosed for improving, in some examples, registration of radio frequency tags with a location system. Example embodiments may include a method for registering a participant with a radio frequency (RF) location tag. The method may include determining tag derived data from the one or more registered RF location tags, identifying at least one unregistered RF location tag, determining an identity of a participant for registration with the unregistered RF location tag based at least in part on the tag derived data from the one or more registered RF location tags, and registering the unregistered RF location tag with the participant.
Clock signal generating apparatus, clock signal generating method, and medium
A clock signal generating apparatus detects a phase difference between an input reference clock signal and a feedback signal to output a control signal based on the phase difference, generates the clock signal with a frequency based on the output control signal, generates a pattern by switching, at a certain time interval, between a plurality of patterns of a second phase shift amount, adds a first phase shift amount to the second phase shift amount having the generated pattern, determines a phase to be selected, so that a cycle of the phase-shifted clock signal matches the cycle of a clock signal changed by the first phase shift amount to which the second phase shift amount is added, selects the determined phase from among a plurality of phases, and generates a phase-shifted clock signal whose signal level changes in the selected phase for output as the feedback signal.
Broadband digital transmitter using π/4 phase offset local oscillator (LO) signals
A broadband digital transmitter is disclosed. The digital transmitter includes a vector decomposer circuit, a phase selector circuit, and a digital power amplifier (DPA). The vector decomposer circuit receives baseband in-phase (I) and quadrature (Q) signals and decomposes the baseband I and Q signals into an offset envelope signal and a non-offset envelope signal. The phase selector circuit receives a plurality of phase offset local oscillator (LO) signals and outputs, responsive to the baseband I and Q signals, offset LO signals and non-offset LO signals. The DPA processes the offset envelope signal, the non-offset envelope signal, the offset LO signals, and the non-offset LO signals to generate an output signal of the digital transmitter.
Digital radio tagging using an RF tuner accessory
An accessory having an RF tuner for digital radio, such as HD radio, can be in communication with a media player such as a portable media device (“PMD”). The user can be given the ability to command the accessory to provide raw digital data, the ability to scan only for stations having digital audio content (or for all available stations), the ability to provide station lists of stations having digital audio content (or all available stations), and the ability to request and store metadata beyond that for stations actually being listened to provide enhanced search capabilities. Enhanced metadata and searching can provide the listener the ability to refine station choices without having to listen at length to any particular station, and further can facilitate tagging broadcast tracks for subsequent access and/or purchase.
Method for lossless data compression/decompression and device thereof
Lossless data compression and depression devices and lossless data compression and decompression methods are provided. The lossless data compression device includes a processor and an entropy coding circuit. The processor is arranged to determine whether a raw data stream matches data items in a dictionary when a compression command for the raw data stream is received and output corresponding codewords according to the determination result. The entropy coding circuit is arranged to perform entropy coding on the corresponding codewords to obtain a compressed data stream.
Elastic data packer
This disclosure relates to compressing and/or decompressing a group of similar data units, such as a table or queue of data units processed by a networking device or other computing apparatus. Each data unit in the group may only have values for fields in a master set. The described systems are particularly suited for hardware-level processing of groups of sparsely-populated data units, in which a large number of the data units have values for only a small number of the fields. In an embodiment, non-value carrying fields in a data unit are compressed based on a compression profile selected for the data unit. The compression profile indicates, for each master field, whether the compressed data unit includes a value for that field. Non-value carrying fields are omitted from the compressed data unit. The compression profile also permits compression of value-carrying fields using variable-width field lengths specified in the profile.
Data compression and de-compression method and data compressor and data de-compressor
Data compression/decompression methods and data compressor/de-compressor are provided. The data compression method includes the steps of scaling an input signal to generate a scaled signal; transmitting the scaled signal to a differentiator and an assembler; differentiating the scaled signal and a prior signal to generate a differentiation signal detecting zero bits of the differentiation signal to generate a zero range control signal and a zero range control word; refining the differentiation signal according to the zero range control signal to generate a refined signal; and determining to combine the zero range control word with the scaled signal or combine the zero range control word with the refined signal according to the zero range control word to generate a compressed signal.
Delta sigma modulator for shaping noise and audio codec having the same
A delta-sigma modulator includes a loop filter, a quantizer configured to change an analog output signal into a digital signal, and a digital-to-analog converter configured to receive the digital signal and including a first capacitor and a second capacitor. In a first sampling period, the first capacitor is discharged, and at the same time, the second capacitor is charged with a reference voltage. In a second sampling period, the digital signal includes noise caused by a clock jitter, the first capacitor is charged with a reference voltage, and the second capacitor is discharged and generates a charge corresponding to the noise. In a next first sampling period, the first capacitor is discharged, and at the same time, the second capacitor generates a noise current corresponding to the noise using the charge and is charged with a reference voltage.
Oscillator circuit and semiconductor device including the same
Controllability of an oscillator circuit is improved. The oscillator circuit has inverters in odd-numbered stages. A circuit is electrically connected to a power supply node of the inverters to which a high power supply potential is input. The circuit includes a first transistor, a second transistor, and a capacitor. The first transistor includes an oxide semiconductor in its channel. A holding circuit including the first transistor and the capacitor has a function of holding an analog potential that is input from the outside. The potential held by the holding circuit is input to a gate of the second transistor. A power supply potential is supplied to the inverters through the second transistor, so that the delay time of the inverter can be controlled by the potential of the gate of the second transistor.
A self-oscillation circuit includes a vibration unit having a vibrator, a positive feedback path which positively feeds back a signal based on vibration of the vibrator to the vibration unit, a negative feedback circuit which generates a pulse-width-modulated signal having a frequency lower than a vibration frequency of the vibrator, based on a comparison result between a value corresponding to an amplitude of the vibrator and a reference value, and a switch circuit which switches connection and disconnection of the positive feedback path to the vibration unit by the pulse-width-modulated signal.
Apparatus for linearizing a differential charge pump
A charge pump and a differential phase locked loop incorporating the charge pump. The charge pump includes a differential charge pump and an auxiliary charge pump. The differential charge pump has differential inputs and primary and mirror outputs. The differential charge pump is responsive to a down signal at the differential inputs to provide a negative current at the primary output and a positive current at the mirror output, and further responsive to an up signal at the differential inputs to provide a positive current at the primary output and a negative current at the mirror output. The auxiliary charge pump has differential inputs and an auxiliary output coupled to the mirror output of the differential charge pump. The differential charge pump is responsive to the down signal at the differential inputs to provide a negative current at the auxiliary output, and responsive to the up signal at the differential inputs to provide a positive current at the auxiliary output.
Reducing errors due to non-linearities caused by a phase frequency detector of a phase locked loop
A phase frequency detector (PFD) includes a first circuit portion and a second circuit portion. The first circuit portion receives a reference signal and activates a first error signal if the phase of the reference frequency leads the phase of a feedback signal. The second circuit portion receives the reference and activates a second error signal if the phase of the reference frequency lags the phase of the feedback signal. The first circuit portion is powered by a first power supply, and the second circuit portion is powered by a second power supply. A PLL implemented using the PFD generates a frequency output with minimized jitter.
Programming system and method
A programming system includes an upper computer, a calculation module, and a first signal conversion module. The calculation module includes a second signal conversion module and a programming interface. The upper computer is configured to convert programming data into first bus signals. When the calculation module is in a normal programming state, the second signal conversion module converts the first bus signals into first clock signals and first data signals to program the calculation module. When the calculation module is in a non-normal programming state, the first signal conversion module converts the first bus signals into second clock signals and second data signals to program the calculation module. A programming method is also provided.
Semiconductor integrated circuit
A semiconductor integrated circuit includes: a first wire through which a signal is transmitted; a second wire that is not used for signal transmission; a switch that creates or breaks an electric connection between the first wire and the second wire; and a control circuit that controls the switch according to an potential of the signal, which is transmitted through the first wire, so that part of charge stored in a first wire capacitor of the first wire moves to a second wire capacitor of the second wire and is stored in the second wire capacitor and the charge stored in the second wire capacitor are drawn to the first wire capacitor to charge the first wire capacitor.
System and method for driving radio frequency switch
In accordance with an embodiment, a radio frequency (RF) switching circuit includes a plurality of series connected RF switch cells comprising a load path and a control node, a plurality of first gate resistors coupled between control nodes of adjacent RF switch cells, and an input resistor having a first end coupled to a control node of one of the plurality of RF switch cells and a second end configured to an output of a switch driver. Each of the plurality of series connected RF switch cells includes a switch transistor.
Proportional feedback for reduced overshoot and undershoot in a switched output
Embodiments of apparatuses and methods for proportional feedback for reduced overshoot and undershoot in a switched output are described. An embodiment of an apparatus includes a switching output stage configured to receive an input signal and provide a responsive output signal. The apparatus may also include a pulling circuit coupled to one of the first switching device and the second switching device. The pulling circuit may pull a control voltage of power transistors in the switching output stage to reduce impedance of at least one of the transistors in response to a determination that the output signal at the common output node is outside of a predetermined range of a threshold value. Pulling strength may increase as a voltage difference between the output signal and one of the first supply voltage and the second supply voltage increases.
Apparatus for offset correction in electronic circuitry and associated methods
An apparatus includes a first field effect transistor (FET) that has a body and is coupled in a circuit. The apparatus also includes a second FET that has a body and is coupled in the circuit. The circuit has an offset because of a mismatch. The apparatus further includes an offset correction circuit coupled to the body of the first FET and to the body of the second FET. The offset correction circuit provides a first offset correction signal to the body of the first FET and provides a second offset correction signal to the body of the second FET.
Circuits, methods, and systems with optimized operation of double-base bipolar junction transistors
The present application teaches, inter alia, methods and circuits for operating a B-TRAN (double-base bidirectional bipolar junction transistor). Exemplary base drive circuits provide high-impedance drive to the base contact region on the side of the device instantaneously operating as the collector. (The B TRAN is controlled by applied voltage rather than applied current.) Current signals operate preferred implementations of drive circuits to provide diode-mode turn-on and pre-turnoff operation, as well as a hard ON state with low voltage drop (the “transistor-ON” state). In some preferred embodiments, self-synchronizing rectifier circuits provide adjustable low voltage for gate drive circuits. In some preferred embodiments, the base drive voltage used to drive the c-base region (on the collector side) is varied while base current at that terminal is monitored, so no more base current than necessary is applied. This solves the difficult challenge of optimizing base drive in a B-TRAN.
DC-DC converter with improved discontinuous conduction mode efficiency
A switch-mode DC converter configured to generate a converted voltage from an input voltage is provided. The switch-mode DC converter includes an inductor configured to store energy, and a switch coupled with the inductor at a switching node, wherein the switch is configurable to be turned on or off to control the discharging of the energy stored at the inductor to an output node of the converter, wherein the output node is configured to provide the converted voltage. The switch-mode DC converter also includes a circuit configured to control a timing of turning-off of the switch based on a voltage difference between the switch, wherein a measurement of the voltage difference is adjusted based on a voltage at the switching node.
A driver circuit includes normally-on transistors (Q1, Q2), control circuits (1, 2) that control the transistors (Q1, Q2), a capacitor (4) connected between power source nodes (1c, 1d) of the control circuit (1), a power source (7) connected between power source nodes (2c, 2d) of the control circuit (2), a MOSFET (16) connected between the power source nodes (1d, 2d), a control circuit (3) that turns on the MOSFET (16) when an output voltage VO reaches approximately 0 V, and a startup circuit that includes a Zener diode (20) connected in parallel to the capacitor (4) and that can charge the capacitor (4) with a Zener voltage even when the MOSFET (16) is off.
Comparator circuit having a calibration circuit
A comparator circuit includes a comparator, a first selection circuit, and a switched-capacitor circuit. The comparator has a first terminal, a second terminal, and an output terminal. The comparator is configured to generate an output signal at the output terminal based on a first signal on the first terminal and a second signal on the second terminal. The first selection circuit is coupled with the first terminal of the comparator and configured to selectively set a first input signal or a first calibration signal as the first signal in response to a control signal. The switched-capacitor circuit is coupled with the output terminal and the second terminal of the comparator. The switched-capacitor circuit is configured to adjust and output the second signal based on the output signal.
Flip-flop for reducing dynamic power
A flip-flop circuit may include a first latch and a second latch. The first latch, which may operate as a “master” latch, includes a first input terminal to receive a data signal, a second input terminal to receive a clock signal, and an output terminal. The second latch, which may operate as a “slave” latch, includes a first input terminal connected directly to the output terminal of the first latch, a second input terminal to receive the clock signal, and an output terminal to provide an output signal. The first latch and the second latch are to be clocked on the same phase of the clock signal, thereby eliminating the need to include clock inversion circuits that generate complementary clock signals.
Pulse width modulator and non-transitory computer readable medium for storing program for pulse width modulator
The pulse width modulator includes a subtraction unit configured to perform subtraction between an m value digital signal and a pulse width modulation signal; a feedforward filter unit configured such that a ΔΣ modulator to which an output signal of the subtraction unit is input and which includes integrators of a second order or higher is in cascade connection, and configured to operate with a sampling frequency FS; a product-sum computing unit configured to operate with a sampling frequency (FS/n) (n: an integer of two or more) to perform product-sum computing of an output signal of each integrator of the feedforward filter unit; and a pulse width modulation unit configured to operate with the sampling frequency (FS/n) to perform pulse width modulation of an output signal of the product-sum computing unit to output a pulse width modulation signal.
Phase-locked loop having sampling phase detector
An example a phase-locked loop (PLL) circuit includes a sampling phase detector configured to receive a reference clock and a feedback clock and configured to supply a first control current and a pulse signal. The PLL further includes a charge pump configured to generate a second control current based on the first control current and the pulse signal. The PLL further includes a loop filter configured to filter the second control current and generate an oscillator control voltage. The PLL further includes a voltage controlled oscillator (VCO) configured to generate an output clock based on the oscillator control voltage. The PLL further includes a frequency divider configured to generate the reference clock from the output clock.
Filter and duplexer
A filter includes: one or more series resonators that are connected in series between an input terminal and an output terminal; one or more parallel resonators that are connected in parallel between the input terminal and the output terminal; and a laterally coupled resonator that is connected in parallel with at least one of the one or more series resonators.
Acoustic wave device
An acoustic wave device includes: a substrate; a piezoelectric film located on the substrate; a lower electrode and an upper electrode facing each other across at least a part of the piezoelectric film; a silicon oxide film located at an opposite side of at least one of the lower electrode and the upper electrode from the piezoelectric film; a non-oxygen-containing insulating film located between the at least one of the lower electrode and the upper electrode and the silicon oxide film; and an additional film located at an opposite side of the silicon oxide film from the non-oxygen-containing insulating film and made of a material different from a material of the silicon oxide film.
Filtering characteristic adjustments of weakly coupled tunable RF filters
RF communications circuitry, which includes a first RF filter structure and RF detection circuitry, is disclosed. The first RF filter structure includes a first group of RF resonators, which include a first pair of weakly coupled RF resonators coupled to a signal path of a first RF signal. One of the first group of RF resonators provides a first sampled RF signal. The RF detection circuitry detects the first sampled RF signal to provide a first detected signal. The first RF filter structure adjusts a first filtering characteristic of the first RF filter structure based on the first detected signal.
Audio control using auditory event detection
In some embodiments, a method for processing an audio signal in an audio processing apparatus is disclosed. The method includes receiving an audio signal and a parameter, the parameter indicating a location of an auditory event boundary. An audio portion between consecutive auditory event boundaries constitutes an auditory event. The method further includes applying a modification to the audio signal based in part on an occurrence of the auditory event. The parameter may be generated by monitoring a characteristic of the audio signal and identifying a change in the characteristic.
Fast automatic gain control (AGC) for packet based systems
A method and apparatus for use in a packet based wireless communication system for reducing automatic gain control (AGC) convergence time at a receiver are described. A radio frequency (RF) signal is received. The RF signal includes a sequence of a plurality of pre-defined power levels at a beginning of a preamble of the RF signal. Statistics for each of the plurality of pre-defined power levels at the beginning of the preamble of the RF signal are computed. An appropriate gain for a variable gain amplifier (VGA) is then computed based on the computed statistics for each of the plurality of pre-defined power levels and a-priori information related to transmission power differences between the plurality of pre-defined power levels of the sequence.
Boost converter voltage controlled based on audio signal
Audio amplification may be improved by controlling an audio amplifier based on the audio signal being amplified. For example, when the audio signal level increases or decreases, a boost voltage provided to an audio amplifier by a boost converter may also be increased or decreased. In another example, when the audio signal level decrease below a certain level, the audio amplifier may be switched from amplifying the audio signal with a boost converter input to amplifying the audio signal with a low voltage input. Control of the audio amplifier may be implemented in a digital boost converter controller coupled to the boost converter and/or the audio amplifier.
Programmable resistor array for a continuous time PGA filter
A compensation circuit includes an amplifier coupled between a first voltage terminal and a common terminal. The amplifier has a first output terminal. A current source transistor has a current path coupled between a second voltage terminal and a second output terminal. A threshold voltage sense transistor has a current path coupled between the first and second output terminals. A gate and drain of the threshold voltage sense transistor are connected. An output transistor having a current path coupled between the first output terminal and a third output terminal has a gate coupled to the second output terminal.
Outphasing transmitter systems and methods
The present disclosure is directed to a system and method for performing the outphasing technique without using a combiner at the output of two power amplifiers to reduce loss and distortions.
Differential class-D amplifier
A fully differential class-D amplifier having a controlled common-mode output voltage is disclosed. The differential class-D amplifier may include a correction circuit to determine the common-mode output voltage associated with differential pulse width modulated output signals and to generate differential correction signals to control the common-mode output voltage. In some exemplary embodiments, the differential class-D amplifier may include a plurality of gain stages to generate the differential PWM output signals. The differential correction signals may be provided to at least one stage of the differential class-D amplifier.
Semiconductor device including amplifier
Disclosed here is an apparatus that comprises an amplifier having first and second input nodes, first and second resistors, a first electrostatic discharge protection circuit coupled between the first input node and the first resistor, and a second electrostatic discharge protection circuit coupled between the second input node and the second resistor.
Efficient smart wideband linear hybrid CMOS RF power amplifier
A novel and useful linear, efficient, smart wideband CMOS hybrid power amplifier that combined an analog linear amplification path and a digital power amplification (DPA) path. PA path control logic analyzes the input I and Q signals and determines which amplification paths to steer the input I and Q signals to. The analog linear amplification path comprises digital to analog converters for both I and Q paths and one or more analog linear power amplifiers. The digital power amplification path comprises I and Q up-sampling circuits and I and Q RF DAC circuits (e.g., digital PA circuits). In operation, the PA path control logic compares the I and Q signals to thresholds (which may or may not be different) and based on the comparisons, selects one or more paths for the input I and Q signals. Whether the signals from the analog and digital amplification paths are to be combined or selected (i.e. switched), the PA path control circuit is operative to generate select (switch) control signals which are applied to summer/selector elements which generate the output of the hybrid PA.
Audio system having an improved efficiency and extended operation time
Embodiments of the disclosure may include a method and apparatus for improving the efficiency and extending the operation time between recharges or replacement batteries of a portable audio delivery system. The audio delivery system may include a processor, an audio processing device, a speaker, and a rechargeable power source. The audio delivery system is generally configured to generate and/or receive an audio input signal and efficiently deliver an amplified, high quality audio output signal to a user. In some embodiments of the disclosure, the audio processing device of the audio delivery system may include a switch mode power supply (SMPS), a signal delay element, an envelope detector, and a switching signal amplifier.
Semiconductor device outputting reference voltages
Power consumption of a signal processing circuit is reduced. Further, power consumption of a semiconductor device including the signal processing circuit is reduced. The signal processing circuit includes a reference voltage generation circuit, a voltage divider circuit, an operational amplifier, a bias circuit for supplying bias current to the operational amplifier, and first and second holding circuits. The first holding circuit is connected between the reference voltage generation circuit and the bias circuit. The second holding circuit is connected between the voltage divider circuit and a non-inverting input terminal of the operational amplifier. Reference voltage from the reference voltage generation circuit and reference voltage from the voltage divider circuit can be held in the first and second holding circuits, respectively, so that the reference voltage generation circuit can stop operating. Thus, power consumption of the reference voltage generation circuit can be reduced.
Voltage controlled oscillator with common mode adjustment start-up
The present disclosure provides methods and apparatus for dynamically adjusting the common mode voltage at the LC tank node and/or the power supply voltage of a VCO with an LC resonator in order to force oscillation start-up by temporarily increasing gain. Methods according to certain preferred embodiments may reduce power consumption and/or overcome threshold voltage limitations and/or increase frequency and frequency tuning range during normal (steady-state) operation.
System and method for fault protection of a motor
An exemplary motor driving system includes a power source, a driving circuit, a controller, a motor, and a protection circuit. The driving circuit including at least one switching device coupled with the power source. The motor includes a plurality of windings. The motor is coupled with the driving circuit and driven by the driving circuit. The controller is configured to provide first switch signals to the at least one switching device of the driving circuit in a normal mode. The protection circuit is coupled with the controller, and configured to generate second switch signals based at least in part on a fault signal in a fault mode and provide the second switch signals to the at least one switching device of the driving circuit so as to reconstruct circuit loops between the driving circuit and the plurality of windings. A method for operating the motor driving system is also described.
Motor starter apparatus with start-up fault detection capability
A motor starter apparatus includes at least one semiconductor switch configured to selectively couple a power source to a motor, at least one current sensor configured to generate a current sense signal indicative of a current provided via the at least one semiconductor switch, and a control circuit coupled to the at least one current sensor and configured to cause the at least one semiconductor switch to momentarily couple the power source to the motor and identify a fault based on a behavior of the current sense signal in response to the momentary coupling. The control circuit may be configured to identify the fault responsive to detecting that a rate of change of the current in response to the momentary coupling meets a predetermined criterion.
Apparatus for controlling inverter
Disclosed herein is an apparatus for controlling an inverter in an inverter system. The apparatus includes: a first determining unit to determine a magnitude, a phase and a frequency of an input voltage to an electric motor in the inverter system; and a second determining unit to determine a restart command voltage for generating an inverter driving voltage larger than a residual voltage in the electric motor using the magnitude of the input voltage determined by the first determining unit, when the inverter system is restarted.
Apparatus for controlling inverter
Disclosed herein is an apparatus for controlling an inverter. The apparatus determines the phase of an command voltage in a restart section taking into account the frequency of an input voltage to an electric motor when an input power is reduced below a rated power, the frequency of the input voltage into the electric motor at the time of restarting, a time period for generating a torque, and the phase of the input voltage to the electric motor at the time of the restarting.
Power conversion apparatus
A power conversion apparatus includes a pair of switching elements that are connected in series between a higher potential side terminal and a lower potential side terminal to form upper and lower arms; a coil whose end is connected between the pair of switching elements; and a controller that calculates, based on a voltage between the higher potential side terminal and the lower potential side terminal and an inductance of the coil, a time rate of change of a current value of a current flowing through the coil, and switches, based on the calculated time rate of change of the current value, between a single arm drive mode in which only one of the pair of switching elements is driven to be turned on/off and a double arm drive mode in which the pair of switching elements are driven to be turned on/off in opposite phase.
Modular multi-phase electric machine
A multi-phase electric motor is proposed that comprises a rotor and a stator. The rotor has a number of magnets directed towards the stator and the stator includes a plurality of phase windings directed towards the magnets. The phase windings are connected to control units that are adapted to selectively apply a current to the phase windings to induce an electromagnetic force which acts upon the magnets to effect a rotation of the rotor. The motor comprises at least two control units, each being configured to control the supply of current to three phase windings such that a different phase current is supplied to each of the three phase windings with a phase shift between said different phase currents being 120°, and wherein no two control units utilize the same current phase. By distributing current over at least six phases and utilizing two or more control units operating as simple 3-phase motors, low voltage operation is enabled without the associated disadvantages of high winding currents, while control is simplified over conventional systems.
Method for controlling an electric machine
A method for controlling an operation of a multi-phase electric machine with a stator and a rotor is disclosed. The stator or the rotor includes permanent magnets, whereas the rotor or the stator includes a plurality of conductor bars interconnected by connecting elements of at least one circuit board and disposed within a magnetic field of the permanent magnets and having an internal inductance connected. The connecting elements are arranged outside the magnetic field and have an external inductance. Each phase includes at least one of the conductor bars. The multi-phase electric machine is controlled by regulating for each phase of the multi-phase electric machine at least one electrical quantity, which is dependent on the internal and external inductance of a respective phase, to a desired value.
Field programmable gate array based brushless DC motor speed detector
A counter is started on the falling edge of a tach pulse. This counter counts to the rising edge of a second tach pulse, such as the next tach pulse. During the duration of the tach pulse the FPGA calculates the RPM of a motor. In this way, during each commutation period, a RPM is calculated. The present system performs a RPM calculation during each commutation period and/or tach pulse duration.
Techniques for controlling a brushless DC (BLDC) electric motor
A controller for controlling a brushless DC (BLDC) electric motor is described. The controller may include a hall control module and a timing module. The hall control module may be configured to receive inputs from three hall sensors, detect one of the three hall sensors has failed based on the received inputs, responsive to detecting that the one of the three hall sensors has failed, switch from a three hall sensors mode to a two hall sensors mode, and generate an output to control a plurality of switches to energize appropriate motor phase windings in the BLDC motor based at least in part on the two hall sensors mode. The timing module may be configured to detect a commutation time from the received inputs.
Control of an electric machine
A method of controlling an electric machine, the method comprising storing a plurality of power maps, each power map comprising control values for driving the electric machine at different power, and selecting a power map in response to an input signal. Additionally, a control system for an electric machine, and a product incorporating the control system and electric machine.
Handheld work apparatus having a drive circuit for an electric motor which drives oscillating tools
A handheld work apparatus having an electric motor and a drive circuit for the electric motor. The rotation movement of the motor is converted into an oscillating movement of the work tool via a gear mechanism. The motor is situated in a circuit including at least the motor and a switch for operating the motor. To reduce wear of the gear mechanism, a control unit for operating the motor in one of two directions of rotation is provided. The control unit independently determines a selected direction of rotation for a next operating cycle as a function of a control variable. When the motor is started, the motor is started by the control unit in the direction of rotation which is associated with a value of the control variable. The control variable changes before the motor is restarted for a following operating cycle.
Implantable micro power generator (IMPG)
An implantable device for harvesting in-vivo blood pressure fluctuations' energy to generate electrical power for powering medical implants while avoiding the need for external power sources.
Piezoelectric motor, robot hand, robot, finger assist apparatus, electronic component conveying apparatus, electronic component inspecting apparatus, liquid feeding pump, printing apparatus, electronic timepiece, and projection apparatus
A first driving signal is supplied to a first electrode of a vibrating body. A second driving signal is supplied to a second electrode of the vibrating body. A common driving signal is supplied to a common electrode of the vibrating body. A phase of the first driving signal is set changeable with respect to a phase of the common driving signal. A phase of the second driving signal is set changeable with respect to the phase of the common driving signal. Then, it is possible to switch a driving direction of a piezoelectric motor according to which phase of the first driving signal or the second driving signal is varied from the phase of the common driving signal. If the phase is simply changed, a switch is unnecessary. It is possible to reduce a driving circuit in size.
Phase shifted polygon forked wye transformer
A pair of phase shifted polygon primary windings, each of which are magnetically coupled to one of a pair of forked wye output windings providing a phase shifted pseudo multiple pulse output voltage waveform from the secondary output windings.
A converter device includes: a converter circuit unit converting alternating-current voltages from a Δ connection and a Y connection of a twelve-phase rectification transformer, into a direct-current voltage; a current detection unit detecting a current of a direct-current bus connected to the converter circuit unit; an open-phase detection unit connected to a side of the Δ or Y connection to detect whether open phase is caused in the connection connected thereto; and an output unit outputting, when detected that there is open phase caused in the Δ or Y connection based on a detection signal of the open-phase detection unit and a current value of the direct-current bus detected by the current detection unit, an indication that open phase is caused in the Δ or Y connection. When open phase is caused, it is possible to output an indication of whether the open phase is caused on the Δ or Y connection side.
Power conversion system with re-configurable power flow
According to some aspects, a power conversion system for converting electrical power produced by a generator is provided. The power conversion system comprises at least one first power converter configured to convert alternating current from the generator to direct current, at least one second power converter configured to convert the direct current to alternating current, and least one controller configured to reconfigure the at least one first power converter to convert direct current to alternating current and/or to reconfigure the at least one second power converter to convert alternating current to direct current.
Flyback-based power conversion apparatus with multi-functional pin
A power conversion apparatus including a flyback power conversion circuit, a control chip and a detection auxiliary circuit is provided. The flyback power conversion circuit converts an input voltage into a direct current (DC) output voltage. The control chip generates a pulse width modulation (PWM) signal for controlling operations of the flyback power conversion circuit. The detection auxiliary circuit assists the control chip in obtaining a first detection voltage via a multi-function detection pin of the control chip within an enabling period of the PWM signal, so as to execute an over current detection according to the first detection voltage. Besides, the detection auxiliary circuit assists the control chip in obtaining a second detection voltage via the multi-function detection pin within a disabling period of the PWM signal, so as to execute a valley voltage detection according to the second detection voltage.
Multifunction power conversion device
A multifunction power conversion device for dynamical detection includes an input filter unit, a transformer, a switching transistor, a driving controller, a feedback unit and an output unit. Two sensing signals from the primary and auxiliary coils of the transformer form a current sensing zero detection signal. The digital control unit of the driving controller determines if a current flowing through a secondary coil of the transformer is reduced to zero due to discharging, and further finds valley of the current of the secondary coil. The switching transistor is turned on after a preset number of the valley and then turned off by a process of current sense. Therefore, the present invention greatly reduces switching loss, increases efficiency of power conversion, and particular, enhances flexibility of application to meet actual requirements by simply updating program executed by the digital control unit.
Integrated circuit and switching power-supply device
A switching power-supply device has an inductor, a switching element serially connected to the inductor, a control circuit, which controls on and off of the switching element and performs an output voltage control in any one of a plurality of modes including a continuous mode and a discontinuous mode, and a continuous mode detection circuit, which detects that the output voltage control is performed in the continuous mode when a current flowing through the switching element is equal to or greater than a threshold.
Method of controlling a DC/AC converter
A method of controlling a DC/AC converter (2) comprises the steps of (a) providing a desired AC side reference value (VAmp); (b) setting a reference correction value (VAmp,corr,1); (c) calculating an AC side reference signal (VAC,set,1) as a function of the desired AC side reference value (VAmp) and the reference correction value (VAmp,corr,1); (d) obtaining an actual AC side signal (VAC,Act,1); and (e) calculating a converter control signal (MAC,1) as a function of the AC side reference signal (VAC,Set,1) and the actual AC side signal (VAC,Act,1); wherein the setting of the reference correction value (VAmp,corr,1) is based on a relation of the desired AC side reference value (VAmp) and the actual AC side signal (VAC,Act,1).
Switching power supply
A power supply control IC includes: a switching control circuit of a fixed on-time type configured to generate an output voltage from an input voltage by driving an inductor by complimentarily turning on/off an output transistor and a synchronous rectification transistor based on a result of comparison between a predetermined reference voltage and a feedback voltage in accordance with the output voltage. The switching control circuit extends an on-time of the output transistor more when a backflow of a coil current is detected than when the backflow is not detected.
Switching power voltage regulator for regulating electric energy to load
A switching power voltage regulator includes a pulse width modulation (PWM) signal generator, an output circuit and a feedback circuit. The PWM signal generator is configured to generate a PWM signal. The feedback circuit is configured to provide a feedback signal to the output circuit according to an output voltage of the output circuit. The output circuit includes an inductor, a plurality of inverters, and a driver. Each of the inverters includes a first transistor and a second transistor. When the inductor needs to be charged, the driver selectively switches one or more corresponding first transistors on according to the feedback signal.
Dynamic clock divide for current boosting
In order to accelerate the response of buck converters to load transients buck converters having asymmetric phase designs having a load step detection are used. When a relatively large and fast load step is detected, the clock frequency of “fast”valley mode phases is reduced, which are populated with fast, low value inductors. The clock frequency is returned to its normal rate when the current in the “slow” phases has reached a suitable level.
Event-based switching for power conversion
In event-based switching for power conversion, binary electrical event signals are selected from a number of available binary electrical event signals. Fewer than all of the available binary electrical event signals are selected. The selected binary electrical event signals are optionally processed in generating respective processed binary electrical event signals. One of the respective processed binary event signals is selected as a switch turn-on signal and another of the respective processed binary electrical event signals is selected as a switch turn-off signal, to control at least one switch in a switching mode power converter.
Switching converter with an adjustable transistor component
A switching converter includes a transistor arrangement having a plurality of n transistors, with n≧2, each including a gate terminal, and a load path between a source and a drain terminal, and at least m, with m≦n and m≧1 of the n transistors having a control terminal. The control terminal of each of the m transistors is configured to receive a control signal that adjusts an activation state of the transistor. The load paths of the plurality of n transistors are connected in parallel to form a load path of the transistor arrangement. A drive circuit is configured to adjust the activation state of the m transistors.
Alternating current injection for constant-on time buck converter—a regulator control method
The present invention discloses a voltage control method. At first, the load voltage of the load is divided to generate a feedback voltage. The feedback voltage and a triangular wave of a triangular wave periodic signal, including the positive voltage and negative voltage, are combined to generate a sum signal. The sum signal is compared with a target voltage, and when the sum signal is less than the target voltage signal, a control signal is generated to control the switches to turn on or off. Finally, the switch receives the control signal and accordingly providing an input voltage to update and stabilize the load voltage.
Power conversion apparatus and refrigeration air-conditioning apparatus
A power converter for converting electrical power from a power source to a load, including: a boosting device including a boost rectifier configured to prevent a backflow of a current from the load to the power source, the boosting device being configured to change a voltage of electrical power from the power source to a predetermined voltage; and a commutation device including: a commutation operation device configured to perform a commutation operation of directing a current flowing through the boosting device to an other path; and a commutation rectifier including a plurality of rectifiers and connected in series on the other path, the commutation rectifier being configured to rectify a current relating to commutation, thereby reducing a capacitance component.
Boost inductor demagnetization detection for bridgeless boost PFC converter operating in boundary-conduction mode
A bridgeless converter includes a boost inductor connected in series with an alternating-current power source, a first series circuit including a first switching device and a second switching device connected in series with each other, a second series circuit including a third switching device and a fourth switching device connected in series with each other, a capacitor connected in parallel with the first series circuit and the second series circuit, and a magnetization sensing circuit including at least one auxiliary winding inductively coupled to the boost inductor.
Switching power supply startup circuit with normally on device providing startup charging current
A power converter startup circuit establishes an operating voltage for control circuitry during startup and is then disabled to reduce no-load power dissipation. The startup circuit has a normally on characteristic to automatically provide startup charging current for a startup capacitor. The control circuitry begins operating as the startup capacitor voltage reaches an operating value, and it generates an inhibitory signal that disables the startup circuit to stop the startup charging current and reduce power dissipation. The normally on characteristic is achieved by an emitter switched current source employing a normally on device such as a depletion-mode J-FET. A resistor divider network provides both biasing for the startup current source and a point of monitoring the power supply input voltage during steady state operation. A charge pump provides a voltage of the inhibitory control signal sufficiently above the auxiliary voltage to turn off the normally on switching transistor.
Camera shake correction apparatus
A camera shake correction apparatus includes a target position setting unit, a current setting unit, a driving unit, a magnetic flux detector, and an arithmetic unit. The target position setting unit sets a target position of a movable member. The current setting unit sets a current value to move the movable member to the target position. The driving unit drives the movable member with respect to a fixed member based on the set current set value. The magnetic flux detector detects a magnetic flux value changed with movement of the movable member. The arithmetic unit calculates a third magnetic flux value by subtracting a second magnetic flux value estimated to be generated from the driving unit based on the current set value from a first magnetic flux value actually detected by the magnetic flux detector.
Apparatus for generating linear vibration with damper and damper
Disclosed is an apparatus for generating linear vibration with a damper, which includes a housing having an inner space formed therein, a fixed body provided in the inner space and having a coil, a vibrating body having a magnet and a weight coaxially disposed with the coil and configured to move in a vertical direction on the basis of the fixed body, an elastic body configured to elastically support the vibrating body, a viscous fluid provided at an upper surface of the magnet and having viscosity, and a damper installed in the housing to face an upper surface of the vibrating body and configured to make a surface contact with the viscous fluid when the vibrating body moves upwards, the damper having a shape not making a surface contact with the entire viscous fluid simultaneously.
Power supply and control circuit for motor-driven conveying rollers
The invention is intended for industry as component of cargo conveyors. In it the relevant commutation electronics is located outside the roller body. The invention provides that only four wires pass through the axial element for easy assembling, using four-terminal connectors. Roller (1) has a hollow body (3), in which an electric motor (4) is located, coupled to the body by driving and torque transferring (5). A cable (6) with terminals (7) from the coils (8) of the motor (4) and a first-potential terminal (9) powers the position sensors (10). Power to sensors is applied by first (9) and second-potential (12). The sensor signal terminals (11) are connected to a digital encoding device (17), powered by the first (9) and second (12) potential. This encoding device has one common encoded output (19) connected to the first potential terminal (9).
Magnetic electricity generator
An electricity generator using a six-segment rotating flux switch, a 2×2 switching sequence with four magnetic flux switch sites, and a unique magnetic circuit design, all of which together alternate the magnetic flux from a stationary permanent magnet through a stationary magnetic segment around which is wound a pickup coil thereby inducing electricity in the pickup coil. Both the vector direction and the scalar value of the magnetic flux are alternated within the stationary magnetic segment resulting in a high power output of AC electricity.
Motor modules, multi-axis motor drive assemblies, multi-axis robot apparatus, and electronic device manufacturing systems and methods
Motor modules for multi-arm robot apparatus are described. The motor modules can be used individually or stacked and assembled to make up one-axis, 2-axis, 3-axis, 4-axis, 5-axis, 6-axis motor assemblies, or more. One or more of the motor modules have a stator assembly including a stator received in the stator housing, and a rotor assembly abutting the stator assembly, the rotor assembly including a rotor housing, a drive shaft, a bearing assembly supporting the drive shaft, and a rotor coupled to the drive shaft. A vacuum barrier member is positioned between the rotor and the stator. Multi-axis motor drive assemblies, multi-axis robot apparatus, electronic device manufacturing systems, and methods of assembling drive assemblies are described, as are numerous other aspects.
Method for partially cured insulators for electromagnetic systems
A method of fabricating an electric machine stator includes inserting one or more electrical coils into a form and partially curing the one or more electrical coils. The method also includes populating the electric machine stator with the one or more electrical coils and curing the electric machine stator with one or more electrical coils.
Ground wire connection structure for motor
A ground wire connection structure for a motor includes: a frame that has electrical conductivity; a flange that is integrated with the frame on one axial end surface of the frame and has electrical conductivity; a protrusion that is protruded outward from a flange surface of the flange and has a through hole; and a conductive pin that has a press-fit portion press-fitted and fixed into the through hole, a diameter-increased head portion, and a solder cup protruded from the head portion to allow an exposed tip end of a ground wire to be inserted and joined into the inside.
High-speed high-power switched reluctance machine
A switched reluctance machine designed for high-speed high-power operation. The switched reluctance machine has a rotor having a plurality of radially extending rotor poles, an interpolar filler positioned between the rotor poles, a stator having a plurality of stator poles extending radially inwardly from the inner surface of a machine frame, a stator winding positioned about each stator pole, wherein the stator wire has a rectangular cross-sectional profile, an axial cooling system, an end turn cooling system, and a cooling jacket positioned radially about the machine frame, and a power source configured to selectively supply electrical power to the one or more stator windings to induce rotation of the rotor.
Spindle motor and disk drive apparatus
A base portion made of a metal includes an upper surface, a lower surface, and a base portion through hole. An insulation sheet portion is located on the lower surface, and covers at least a portion of the base portion through hole. A lead wire is in contact with the insulation sheet portion. A spindle motor includes a first sealant located in the base portion through hole, and a second sealant which covers at least a portion of the base portion through hole. The first sealant has a coefficient of linear expansion greater than a coefficient of linear expansion of the base portion and smaller than a coefficient of linear expansion of the second sealant.
Method for producing a housing arrangement, housing arrangement and stamping apparatus
A method for producing a housing arrangement for a an electric machine provides a closure part and a carrier part. An opening of the carrier part is placed onto a spigot on the closure part. The spigot is shaped to engage behind the carrier part. A housing arrangement for an electric machine is also provided. The housing arrangement has a closure part and a carrier part fixedly connected to the closure part.
Motor control apparatus
A motor control apparatus includes a motor, a motor controller, and a connection line. The motor is mounted to a vehicle and has a metal housing. The motor controller is separately provided with the motor, includes a housing and a circuit portion, is connected to the motor through a load line, and drives the motor by a drive current transmitted through the load line. A ground line of the circuit portion is connected to a body of the vehicle as a body earth. The connection line directly connects the metal housing of the motor and the circuit portion of the motor controller without through the housing of the motor controller.
Centralized power distribution member for motor
A centralized power distribution member A for motor arranged on the outer periphery of a stator S of a motor and configured to feed power to windings of the stator S includes a plurality of annular busbars 10 each including a power feeding terminal 20 and connection terminals 15 to the windings on one side edge, an annular holder 30 made of synthetic resin and configured to accommodate the busbars 10 laminated in a radial direction in a mutually insulated manner, and a power feeding unit 70 arranged near a predetermined position in a circumferential direction and individually connected to the power feeding terminal 20 of each busbar 10 and power supply side terminals drawn out from a power supply side. The power feeding unit 70 is arranged on an end surface side of the stator S where the power feeding terminals 20 and the connection terminals 15 are arranged.
Reduction of electrolytic corrosion in a brushless direct-current motor
The invention relates to a control device (1) for reducing electrolytic corrosion in a brushless direct-current motor (3). The control device (1) is designed to control phases (9, 11, 13) of the brushless direct-current motor (3). The control device (1) has a potential equalization connection (5) and a potential equalization line (7). The potential equalization line (7) is designed to connect the brushless direct-current motor (3) to the potential equalization connection (5). An anti-corrosion resistor (RK) is provided on the potential equalization line (7), which anti-corrosion resistor is designed to reduce a current flow between the phases (9, 11, 13) of the brushless direct-current motor (3) and the potential equalization line (7).
Winding for rotary electrical machine
A rotary electrical machine comprising a rotor and a stator (1). The stator comprises a tooth (21) delimited by notches (22), and a winding composed of n×M wires (3), wherein n corresponds to a number of phases and is equal to at least 2, and M corresponds to a number of continuous electric wires for each phase (3) and is equal to at least one. The winding is composed of successive turns, each of the successive turns comprising n×M wires wound simultaneously in n of the notches (22) to be inserted in n series of notches. Each of the series of the notches is dedicated to a single phase, and for each of the successive turns, each of the assembly of the M wires (3) constitutes a phase and is inserted in the same series of the notches (22).
Permanent magnet rotor
A permanent magnet rotor including a rotor core and permanent magnets. The rotor core includes a plurality of magnetic induction blocks. A plurality of radial recesses are formed between every two adjacent magnetic induction blocks for mounting the permanent magnets. The magnetic induction blocks protrude at both sides of the opening of the radial recesses to form hook blocks. The permanent magnets include a first permanent magnet and a second permanent magnet. The first permanent magnet includes a north pole strong magnetic surface and a south pole weak magnetic surface. The second permanent magnet includes a north pole weak magnetic surface and a south pole strong magnetic surface. The first permanent magnet and the second permanent magnet are alternately disposed in the radial recesses.
Permanent magnet rotor
A permanent magnet rotor comprises a rotor body configured for rotating around a central rotational axis and further comprises principal permanent magnets that are substantially rectangular in axial cross-section and are embedded in the rotor body and are arranged inclined with respect to the radial plane extending through the center of the principal magnets and such as to have a circumferential magnetic orientation. The principal magnets have an inner end and an outer end, the outer end being arranged in the proximity of the air gap of the outer circumference of the rotor, and outer bridges of magnetically conductive material being formed between the outer ends of the principal magnets and the outer circumference of the rotor. Auxiliary magnets are arranged near the outer ends of the principal magnets to magnetically saturate the outer bridges.
An electric machine comprise a first carrier having an array of electromagnetic elements and a second carrier having electromagnetic elements defining magnetic poles, the second carrier being arranged to move relative to the first carrier. An airgap is provided between the first carrier and the second carrier. The electromagnetic elements of the first carrier include posts, with slots between the posts, one or more electric conductors in each slot, the posts of the first carrier having a post height in mm. The first carrier and the second carrier together define a size of the electric machine. The magnetic poles having a pole pitch in mm. The size of the motor, pole pitch and post height are selected to fall within a region in a space defined by size, pole pitch and post height that provides a benefit in terms of force or torque per weight per excitation level.
System for optical wireless power supply
A system for optical wireless power transmission to a power receiving apparatus generally situated in a mobile electronic device. The transmitter has an optical resonator with end reflectors and a gain medium positioned between them, such that an optical beam is generated. The frequency of the beam is selected such that it is absorbed by almost all transparent organic materials in general use. A beam steering unit on the transmitter can direct the beam in any of a plurality of directions, and the beam is absorbed on the receiver by means of an optical-to-electrical power converter, through a low reflection surface. The band gap of this power converter is selected to be smaller than that of the gain medium. The receiver has a voltage converter including an inductor, an energy storage device and a switch. A beam steerer controller ensures that the beam impinges on the receiver.
Wireless power transfer method and system
A new resonance-based wireless power transfer system is disclosed. The new resonance-based wireless power transfer system includes a power transmitter and a power receiver. The power transmitter and the power receiver are both oscillator-based circuits, but unlike prior systems, their resonant frequencies are different. The difference between the transmitter's resonant frequency and the receiver's resonant frequency is set between a lower bound and an upper bound to ensure that the new resonance-based wireless power transfer system will have only one oscillation frequency while maintaining high power transfer efficiency over varied distances.
Wireless charging apparatus and method of vehicle
A wireless charging apparatus includes: a receiver configured to receive a signal from a smart key apparatus indicating whether a smart key is present in the vehicle; a frequency controller configured to control a wireless charging frequency band when the receiver receives a signal indicating that the smart key is present in the vehicle; and an antenna configured to transmit a frequency controlled by the frequency controller.
Charge control of a metal-air battery
A method for managing the charge of a metal-air battery comprising at least one cell. The cell comprises a negative electrode, a first positive air electrode and a second positive oxygen-release electrode. For each cell, during the application of a charge current circulating in the cell between the negative electrode and the second positive oxygen-release electrode, the absolute value of a potential of the negative electrode is compared with a critical threshold value, the potential of the negative electrode being determined relative to the first positive air electrode. When the absolute value of the potential of the negative electrode reaches the threshold value, a surplus charging current, depending on the difference between the current applied to the cell and the charging current, is diverted.
System and apparatus for improving the utility of regulators and associated methods
An integrated circuit (IC) includes a first circuit that is powered by a first supply voltage, and a second circuit that is powered by a second supply voltage. The second supply voltage has a lower level than the first supply voltage. The IC further includes a power management circuit. The power management circuit includes a switch-mode DC-DC regulator that is coupled to a plurality of pins of the IC in a pre-defined configuration. The power management circuit provides the first and second supply voltages to power up the IC in a default configuration without knowledge of the pre-defined configuration.
System and method to avoid magnetic power loss while providing alternating current through a ferromagnetic material
This disclosure provides systems, methods and apparatus for avoiding magnetic power loss while providing alternating current through a ferromagnetic material. In one aspect, the ferromagnetic material includes at least one orifice. At least one electrical conduit extends through the at least one orifice from a first region on a first side of the ferromagnetic material to a second region on a second side of the ferromagnetic material, the second side opposite to the first side. The at least one electrical conduit is configured to have at least one alternating current flowing along the at least one electrical conduit between the first region and the second region. The ferromagnetic material and the at least one electrical conduit are configured to reduce power loss caused by a circumferential magnetic flux generated within the ferromagnetic material by the at least one alternating current.
Photovoltaic power system inverter detection
Photovoltaic power system inverter detection apparatus and methods are disclosed. Electrical continuity between an inverter in a PV power system and a PV panel disconnect switch, which switchably couples one or more DC PV panels to the PV power system, is tested while the PV panel disconnect switch is open. A state of the electrical continuity is determined based on measurements of an electrical parameter after the test signal is applied. The PV panel disconnect switch is maintained open on determining no electrical continuity, and closed on determining that there is electrical continuity between the PV panel disconnect switch and the inverter. A shutdown device that implements inverter detection may be located and/or adapted to meet safety conditions, by being located less than 10 feet from the PV panel array and/or adapted to limit a test signal to a maximum of 30V and 240VA.
System which intelligently and optimally controls power utilization from hybrid energy sources
A system for controlling power utilization from hybrid energy sources to reduce energy consumption costs and maximize use of renewable energy; the system comprises a plurality of switches for switching power between a plurality of power sources; a control unit for controlling the switches to switch between the power sources to supply power from at least one of said power sources to said loads; the control unit preventing back-feeding of power between the power sources; the control unit reducing excess power generated from multiple inverters equally or storing it in a battery bank; the control unit diverting the excess power to the battery bank in the event that loading of at least one of said power sources falls below a predetermined value.
Microgrid control system
The present invention relates to a system for controlling microgrid facilities. In particular, the microgrid control system provided is capable of controlling multiple facilities according to characteristics of the facilities in order to achieve economic efficiency, environmental friendliness, and continued operability. The microgrid control system for controlling the operations of the multiple power facilities is provided with: a power supply activation/suspension planning unit that has a prediction unit for predicting outputs or loads of power supply facilities or load facilities and a prediction unit for predicting prediction errors contained therein; and an economical load allocation unit that determines command values related to the distribution of loads to be borne by currently running power supply facilities.
System and method for installing solar panels based on number of panels and output of panels
A controller for a plurality of solar panels is provided. An input connector is configured to receive (a) power from the plurality of solar panels, and (b) information from the individual solar panels. An output is configured to forward from the input connector the power from the plurality of solar panels. A controller is configured to receive the information, and based on the information selectively enable or disable the flow of power from the input to the output. The controller enables the flow of power when (a) a number of solar panels connected to the input is within a first threshold, and (b) the total rated output of solar panels connected to the input is within a second threshold. The controller disables the flow of power when (a) a number of solar panels connected to the input exceeds the first threshold, and/or (b) the total rated output of solar panels connected exceeds the second threshold.
DC circuit breaker and method of use
A direct current circuit breaker includes main circuit for carrying a main-path current, and a transient circuit for carrying a transient-path current. The main circuit includes a first solid state switch and a main contactor. The first solid state switch is coupled in series with the main contactor. The transient circuit is coupled in parallel with the main circuit. The transient circuit includes an auxiliary contactor coupled in series with a second solid state switch. The second solid state switch closes when the main-path current exceeds a first threshold. The first solid state switch then opens. The main contactor opens when the main-path current falls below a second threshold. Then the second solid state switch opens. The auxiliary contactor opens when the transient-path current falls below the second threshold and after the second solid state switch opens.
Method and control system for handling a reclosing operation in a power system
A method of handling a reclosing operation of a recloser in a power system subject to a fault. The method includes a) determining a fault current for each electrical phase, the fault current being determined by a difference between measured current values and a sinusoidal model of a current prior to the fault, bI) calculating a respective sinusoidal model of the fault current for each electrical phase using samples taken before the fault, bII) selecting two sinusoidal models with the largest amplitude to represent faulted electrical phases, bIII) calculating a plurality of sub-features based on the two models, and bIV) determining a main feature value based on the plurality of sub-features, bV) determining, based on the main feature value, whether a temporary fault is present, and c) providing control instructions that the recloser is to reclose in the event that the fault is a temporary fault.
Power cable terminal connection device
A terminal connection device comprises a contiguous body disposed onto an inner conductor. The inner conductor includes a first end mateable with a power cable connector and a second end. The body comprises a multilayer structure having an inner conductive or semiconductive layer disposed over at least a portion of the power cable connector, an insulating layer and an outer conductive or semiconductive layer. The body surrounds the first end of the inner conductor and extending towards the second end of the inner conductor. The body can also include an electrically isolated section of conductive or semiconductive material. The terminal connection device can be a fully integrated structure, having a pre-installed connection interface, or the terminal connection device can be configured as an adapter which can be mounted in the field to a connection interface.
Enclosure for cable distribution assembly
An enclosure for breaking out a trunk cable includes: a base having a generally flat surface adapted for mounting to a mounting surface; a shell having a front and two side walls extending from opposite sides of the front and two opposed end walls, the side walls of the shell mounted to the base to form a cavity; a plurality of connectors mounted to each of the side walls; and a trunk cable routed into the cavity through one of the end walls, the trunk cable comprising a plurality of power conductors and/or a plurality of optical fibers. The power conductors and the optical fibers are connected with respective ones of the plurality of connectors.
MediaLink interconnection box
Novel tools and techniques are provided for implementing MediaLink Interconnection Boxes (“MIBs”). In some embodiments, a plurality of MediaLink Interconnection Boxes (“MIBs”) or media interconnection devices, which may be disposed throughout a recreational vehicle (“RV”) park or other bulk service provider application sites, or the like, may serve as demarcation units designed to each provide an accessible indoor or outdoor interface where long-term or temporary/transient customers can directly connect to land line service (e.g., POTS service), video or television service, and/or Ethernet or Internet services provided by one or more service providers. Fiber-to-Drop-Point (“FTDP”) and/or point-to-point fiber insertion within a passive optical network (“PON”) communications system may be implemented using apical conduit systems in conjunction with the MIBs. Alternatively, traditional ground-based or buried line interconnections (or a combination of the apical conduit system and such traditional interconnections) may be implemented in conjunction with the MIBs.
Electrical junction box and wire harness
An electrical junction box includes a housing attachable to an object to be attached, a housing support member holding the housing and attachable to the object to be attached, and male and female screw members. The housing support member includes a first portion to be engaged with a first engaging portion in the housing, thereby achieving positioning therewith, a second portion to be engaged with a second engaging portion in the housing, thereby achieving positioning therewith, an extending portion extending between the first and second portions to be engaged, and a through hole provided to an end of the extending portion on the second portion to be engaged side. The housing has a through hole. The through holes are disposed to be concentric in a state that the first and second portions to be engaged are respectively engaged with the first and second engaging portion.
A conductive path is provided that enables easily connecting stranded electrical lines to a plurality of single-core electrical lines collectively inserted into a pipe. The conductive path includes a plurality of single-core electrical lines, each being made up of one single-core conductor enveloped in an insulating sheathing, and a shield pipe into which the single-core electrical lines are collectively inserted. An end portion of each of the single-core conductors is a junction portion to which a stranded electrical line is to be connected, the stranded electrical line including a stranded conductor made up of a plurality of twisted individual wires, and an insulating sheathing that envelops the stranded conductor. The junction portions of the single-core electrical lines are arranged in the longitudinal direction with respect to each other outside of the shield pipe.
Plastic injection overmolded conductor path structure, and method for producing the plastic injection overmolded conductor path structure
A plastic injection overmolded conductor path structure is disclosed, wherein the conductor paths are entirely surrounded, apart from their connections, by a housing made of plastic, said housing comprising first housing sections produced in a first injection molding process (pre-injection overmolding), and second housing sections which directly adjoin the first housing sections via a contact surface, and which are produced in a second injection molding process (main injection overmolding). The housing is provided with at least one recess of a defined shape and size, in the region of the contact surface.
A wire harness is provided with an electrically conductive path, and a tubular sheath member into which the electrically conductive path is inserted. The sheath member includes a straight portion having strength to limit bending. A bellows-shaped portion which is wavy in shape in a tube circumferential direction, is formed in a portion of the straight portion in a sectional view. The bellows-shaped portion is more flexible than a portion of the straight portion other than the bellows-shaped portion.
Apparatus and system for scheduling mobile device operations on a power transmission system
Described embodiments include a system, apparatus, method, and computer program product. A described apparatus includes a receiver circuit configured to receive data indicative of at least one physical parameter of a power transmission system configured to transport electric power from one place to another. The apparatus includes an analysis circuit configured to assess a potential operational risk to a portion of the power transmission system at least partially based on the received data. The apparatus includes a planning circuit configured to schedule a traverse by a mobile device over a transmission line of the power transmission system at least partially based upon the assessed potential operational risk.
Secondary disconnect assembly for a switching device
A secondary disconnect assembly for a switching device includes a first mounting bracket configured to support a secondary connector of a switching device system, a telescopic arrangement connected to the first mounting bracket, a slider connected to the telescopic arrangement, and a second mounting bracket including a projection. The second mounting bracket is operable to move with the switching device. The slider is engageable with the projection and movable with the second mounting bracket in an automatic operation of the secondary disconnect assembly. The slider is disengageable from the projection and movable with respect to the second mounting bracket in a manual operation of the secondary disconnect assembly.
Snap on fingersafe system for panelboards
A touch safe system is provided for an electrical panel, such as a panel board or residential load center. The system includes a phase barrier to isolate branch connectors along a center portion of the electrical panel, a top central cover that snaps onto the phase barrier and two side bus covers. The side bus covers are arranged along opposite sides of the phase barrier over opposite side portions of the electrical panel. The system further includes snap-in filler plates to cover any exposed portion of a branch connector which is unoccupied by a circuit breaker. Each of the snap-in filler plates is secured between the top center bus cover and one of the side bus covers. A snap-in lug cover can also be provided for each circuit breaker on the panel, and secured between one of the side bus covers and a recessed portion of the circuit breaker.
Multipoint spark plug and multipoint spark plug manufacturing method
A multipoint spark plug includes side electrodes provided in a pair so as to extend in a lengthwise direction of a tip end portion via a gap, and an intermediate electrode provided in the gap between the pair of side electrodes such that a plurality of ignition gaps are formed in the lengthwise direction of the tip end portion. An electrode holding portion is formed from separate parts that hold the side electrodes and the intermediate electrode, respectively, so as to insulate the side electrodes and the intermediate electrode from the main body portion, and the respective parts thereof project into the combustion chamber from the tip end portion.
Disclosed is a spark plug with improved lifetime. The spark plug includes a first electrode and a second electrode having an electrode base and an electrode tip joined to the electrode base with a gap defined between the first electrode and the electrode tip. The electrode tip has a flat surface located apart from the electrode base and is joined to the electrode base at a side opposite to the flat surface by laser welding with emission of laser beam in a plane direction from one to the other end of the flat surface. A fused part is formed by the laser welding at the opposite side of the electrode tip. A cross-sectional shape of the fused part taken along a plane perpendicular to the flat surface and parallel to the plane direction has a constricted section at a position from one side to the other side in the plane direction.
Laser spark plug having an improved seal between the combustion chamber window and the casing
A casing for a laser spark plug, in particular, of an internal combustion engine of a motor vehicle, or of a stationary engine; the casing including at least one casing part and a combustion chamber window joined to the casing part to form a seal at least regionally; characterized in that at least one sealing element, whose coefficient of thermal expansion at an operating temperature of the laser spark plug is greater than the coefficient of thermal expansion of the casing part at the operating temperature of the laser spark plug, is provided between the casing part and the combustion chamber window.
Modular laser apparatus
A laser apparatus includes a plurality of laser modules each generating a laser line in a working plane. The laser modules are juxtaposed so that the laser lines generated by the modules combine into a single laser line. Each of the laser modules includes at least one laser line generator. The laser line generator includes two linear arrays of strips of laser diodes each emitting a focused laser beam. The two linear arrays are arranged parallel to each other so that the strips are staggered. The two sets of parallel laser beams generated by the two linear arrays of strips, respectively, are merged into a single laser line by a set of mirrors. The linear arrays of strips of laser diodes and the mirrors are arranged so that the two sets of laser beams trace optical paths of the same length before being merged into a single laser line.
Mode control in vertical-cavity surface-emitting lasers
Aspects of the subject disclosure may include, for example, a first distributed Bragg reflector, a second distributed Bragg reflector, an active region with an oxide aperture between the first and second distributed Bragg reflectors, and a dielectric layer, where a positioning of the dielectric layer with respect to the first and second distributed Bragg reflectors and the oxide aperture causes suppression of higher modes of the vertical-cavity surface-emitting laser device. Other embodiments are disclosed.
Terahertz quantum cascade lasers
A terahertz quantum cascade laser device is provided comprising a substrate having a top substrate surface, a bottom substrate surface, and an exit facet extending between the top substrate surface and the bottom substrate surface at an angle θtap. The device comprises a waveguide structure having a top surface, a bottom surface, a front facet extending between the top surface and the bottom surface and positioned proximate to the exit facet, and a back facet extending between the top surface and the bottom surface and oppositely facing the front facet. The waveguide structure comprises a quantum cascade laser structure configured to generate light comprising light of a first frequency ω1, light of a second frequency ω2, and light of a third frequency ωTHz, wherein ωTHz=ω1−ω2; an upper cladding layer; and a lower cladding layer. The device comprises a distributed feedback grating layer configured to provide optical feedback for one or both of the light of the first frequency ω1 and the light of the second frequency ω2 and to produce lasing at one or both of the first frequency ω1 and the second frequency ω2, thereby resulting in laser emission at the third frequency ωTHz at a Cherenkov angle θTHz through the bottom surface of the waveguide structure into the substrate and exiting the substrate through the exit facet. The device comprises a high-reflectivity coating on the front facet of the waveguide structure.
Thermo-optically tunable laser system
A tunable laser has a solid state laser medium having an optical gain region and generates coherent radiation through a facet. A lens collects the coherent radiation and generates a collimated light beam. Components of an external cavity include a reflective surface and an optical filter, the reflective surface reflecting the collimated beam back to the lens and the laser medium, the optical filter positioned between the reflective surface and the lens and having two surfaces with a thermally tunable optical transmission band within the optical gain region of the laser medium. The optical filter (1) transmits a predominant portion of the collimated beam at a desired wavelength of operation, and (2) specularly reflects a remaining portion of the collimated beam from each surface, the collimated beam being incident on the optical filter such that the reflected collimated beams propagate at a non-zero angle with respect to the incident collimated beam.
Off-axis zigzag parametric oscillator
A high-efficiency non-collinearly phase matched parametric oscillator is provided, wherein a laser pumps a nonlinear optical material with a plural number of flat reflection surfaces that zigzag at least one parametrically generated off-axis radiation about the pump laser beam axis via multiple reflections from the surfaces. The off-axis zigzag oscillation of the radiation establishes parametric oscillation and improves energy coupling among mixing waves in a monolithic nonlinear optical material. Preferably the pump laser has a transverse beam size covering the area of the zigzagging parametrically generated radiation. To further enhance the performance of the off-axis zigzag parametric oscillator, the other parametrically generated radiation can be seeded by an external laser source or resonated in a cavity. The present invention also includes a double-side pumped off-axis zigzag parametric oscillator installed inside a standing-wave pump-laser cavity.
CMOS compatible rare-earth-doped waveguide amplifier
The present application is directed to a planar waveguide amplifier. The planar waveguide amplifier includes a substrate having an upper surface and a lower surface. The planar waveguide amplifier includes a core formed on an upper surface of the substrate. The core includes a channel configured to transmit light there through. The planar waveguide amplifier also includes an upper cladding layer formed above the core. The upper cladding layer includes a glass doped with rare earth material in an amount less than about 5% of the upper cladding layer. The application is also directed to a method of amplifying a signal.
Modular laser system
Methods and related modular laser systems, e.g., distributed aperture, ultra short pulsed laser, are provided on a host platform having multiple compartments and groups of components where each group has a different environmental sensitivity such as temperature, humidity, vibration, etc or other installation constraints. Each component group is placed in different compartments of the host platform based on constraints comprising equipment, size, available installation footprint, equipment interconnection, and location constraints. For example, one group with one temperature sensitivity falling within environments provided for aircraft passengers or crews can be placed in the crew or passenger compartments. Other components having a greater temperature tolerance might be placed in an equipment bay having a different temperature range than a crew/passenger cabin. Other components might be placed in an area without any environmental controls or even pressurization (e.g., a cargo bay). Components can be located based on single, multiple, or combinations of constraints.
Connector assembly for a plasma arc torch
A connector assembly for coupling a plasma arc torch or a welding torch to a power supply having a receiving mechanism. The connector assembly includes a connector body, a plug, and a locking key assembly. The connector body has distal and proximal ends, and the plasma arc torch is affixed to the distal end. The plug extends from the proximal end of the connector body and may include a keyseat. The locking key assembly includes an adapter key and a latch. The adapter key is disposed within the plug keyseat and is configured for receipt within a keyway of the receiving mechanism. The latch retains the locking key assembly to the connector body or connector assembly. The locking key assembly releasably couples the connector assembly to the receiving mechanism and the plasma arc torch to the power supply.
Propeller deicing brush block
A brush block assembly and a method of assembling the same are described. The brush block assembly includes two or more brushes arranged in one or more rows, each of the two or more brushes comprised of a pressed electrically conductive material with an integral lead wire and a terminal, and one or more terminal studs, each of the two or more brush blocks within a same one of the one or more rows being separated by one of the one or more terminal studs, a helical spring coupled respectively to each of the two or more brushes, and insulated wires from a power supply and the respective terminal of each of the two or more brushes within the same one of the one or more rows being retained by the one of the one or more terminal studs in the one of the one or more rows.
Slip ring transducer
The invention relates to a slip ring assembly of a slip ring transducer for transducing electrical signals between a stationary part and a part which rotates around an axis of rotation, comprising: at least one slip ring for transducing one of the electrical signals between the slip ring and at least one slip element trailing thereon, in particular a brush, and a slip ring shaft for securing the at least one slip ring thereon, the slip ring shaft having guiding channels distributed along its circumference in order to receive electrical lines for electrically connecting the at least one slip ring.
Electrical switching apparatus and secondary disconnect assembly with cradle assembly alignment and positioning features therefor
A secondary disconnect assembly is for an electrical switching apparatus. The secondary disconnect assembly includes a mounting member and a cradle assembly coupled to the mounting member and being movable among a plurality of positions with respect to the mounting member. The cradle assembly includes an inner cradle. When the inner cradle is disposed in a first predetermined one of the positions, movement of the inner cradle is restricted with respect to the mounting member. When the inner cradle is moved toward a second predetermined one of the positions, the inner cradle moves independently with respect to the mounting member.
Power transfer systems
In a power transfer system, a first main switch can transfer power from a first connector to an output terminal. A first path can deliver a current from the first connector to the output terminal and control the current to be within a predefined ranger. A second main switch can transfer power from a second connector to the output terminal. A second path can deliver a current from the second connector to the output terminal and control the current to be within a predefined range. Control circuitry can turn off the second main switch and the second path and turn on the first path if the first power source is available at the first connector when the second power source is providing power to the output terminal. The control circuitry can turn on the first main switch when a time interval from turning on the first path has elapsed.
Lead connector with distal frame
A lead connector for an implantable medical device includes a cylindrical connector body having a proximal end and a distal end. A distal frame forms the distal end and a remainder of the connecter body is a mold material. A plurality of shafts extending through the distal frame from a rear face to a front face, the rear face abutting the mold material forming the remainder of the connector body. A plurality of ring contacts are in the connector body. A plurality of wires are coupled to a ring contact and extend through the mold material and through a corresponding one of the shafts. The mold material forming the remainder of the connector body extends partially into each shaft and about the corresponding conductive wire to form a plug.
A connector includes a holding member, a contact, a shell and a ground member. The holding member is made of insulator defining a connection space. The contact has a contact point. The contact is held by the holding member. The contact point is located inside the connection space. The ground member is electrically connected to the shell. The ground member has a base portion, a ground spring portion and a ground contact point portion. The base portion is located between the holding member and the shell. The base portion is provided with a regulated portion sandwiched between the shell and the holding member. The ground spring portion extends from the base portion. The ground contact point portion is supported by the ground spring portion and protrudes into the connection space. In the front-rear direction, a position of the ground spring portion does not overlap with a position of the contact.
An electrical connector comprises a body, a terminal positioning member provided at a rear end of the body and a first group of terminals mounted in terminal grooves of the body. The terminal positioning member comprises a first spacing rib and a second spacing rib. The first group of terminals comprises signal terminals and ground terminals. The signal terminals and the ground terminals each comprise a contact portion, a retaining portion and a tail portion, the retaining portion connecting the contact portion and the positioning portion, the positioning portion connecting the retaining portion and the tail portion. The first spacing rib extends between the positioning portions of the adjacent signal terminals, the second spacing rib extends between the positioning portion of the signal terminal and the positioning portion of the adjacent ground terminal and the first spacing rib is longer than the second spacing rib.
A connector includes a male housing having a male beak, a plurality of male terminals, a female housing having a female lock portion climbing over the male beak to be locked to the male beak in a fitted state with the male housing, a plurality of female terminals aligned in the alignment direction in the female housing and connected to the respective male terminals in the fitted state, a CPA member having a CPA lock portion capable of being locked to the female lock portion at a fitting assurance position, and short-circuiting pieces provided in the female housing and short-circuiting the adjacent female terminals in the female housing in a non-fitted state. Contact positions between the female terminals and the short-circuiting pieces and locking positions at which the female terminals are locked in the female housing are different from each other about a fitting direction when viewed therefrom.
Connector with a claw of locking member
A connector is fitted into a mating connector including a receiving member, and includes a locking arm for locking the receiving member. The locking arm includes an arm member which extends in a fitting direction to the mating connector, and a locking member which is provided at a tip end of the arm member or in the neighborhood thereof so as to project in a direction intersecting the direction of fitting, and locks the receiving member. The locking member includes a claw which is formed at a tip end of the locking member so as to project in a direction opposite to the fitting direction to the mating connector and is caught by the receiving member.
Systems and methods providing an electrical interface between a male plug (1002) and a female receptacle (100, 500, 1000, 1600). The methods comprise: receiving a conductive pin (402, 800, 1006, 1602) of the male plug in a socket opening (112, 900, 1012, 1612) of the female receptacle; providing (a) first spring loaded floating contact points (460) between an elongate body (422) of the conductive pin and an electrical contact (106A-106B) of the female receptacle and (b) at least one second spring loaded floating contact point (462) between a tip (420) of the conductive pin and the electrical contact (110) of the female receptacle, when the conductive pin is fully inserted into the female receptacle; and maintaining at least two of the spring loaded floating contact points when the pin moves within the socket opening as a result of an external force applied to the male plug or female receptacle.
Active cover plates
One embodiment includes a cover plate for an electrical receptacle. The cover plate includes first and second conductors that protrude rearward from the cover plate and are configured to contact terminals of a receptacle to supply power to a load associated with the cover plate. Insulators over at least a portion of the conductors inhibit the conductors from contacting other conductive materials.
A connector is configured such that a fitting-side component (10) is fit into a receiving-side component (20). The fitting-side component (10) includes a block-shaped main body (11) and a lock (15) standing on an outer surface of the main body (11). The receiving-side component (20) includes a receptacle (21) open forward and externally fittable to the fitting-side component (10). A locking surface (16) is provided on a surface of the lock (15) facing an opening side of the receptacle (21) in a fitted state of the fitting-side component (10) and the receiving-side component (20). The locking surface (16) stands substantially at a right angle to a separating direction from the receiving-side component (20). The receiving-side component (20) includes a lock projection (35) projecting on an inner surface of the receptacle (21) for locking the locking surface 16 from the opening side of the receptacle (21).
Connector module and locking device including the same
A connector module may include: a connector body including an interior space with an empty area therein; and a connector part disposed on one side of the connector body. The connector part may include: a connector protruding from the connector body; and a connector holder seated in the empty area of the connector body and configured to secure the connector thereto. The connector holder may be configured to move the connector in one direction in response to an external force. A fixing part may be connected to one side of the connector body in a hinged fashion and being rotatable relative to the connector.
Underwater connecting apparatuses and assemblies
Underwater connecting apparatuses include a flexible diaphragm that at least in part defines a wall of a chamber configured to contain a fill material, the wall having a perimeter with a non-circular profile when the chamber is viewed in cross-section. The non-circular profile of the perimeter is configured to allow a volume of the chamber to change without substantially changing a length of the perimeter.
A connector that can make it easy to manufacture a metal mold for cover manufacturing is provided. A connector includes a connector body and a cover that covers the region between the connector body and a parking brake cable. The connector body includes a body-side attachment portion to which the cover is attached, and the body-side attachment portion is formed with an elliptic cylindrical shape. The cover includes a cover-side attachment portion for attachment to the body-side attachment portion of the connector body, and the cover-side attachment portion is formed with a true circle cylindrical shape so as to have an opening portion that is shaped as a true circle.
A waterproof connector includes a housing (10) provided with cavities (11) capable of accommodating terminal fittings (T) and open backward, a dummy plug (30) configured to be held in close contact with an inner surface of the cavity (11) by being inserted into the cavity (11) from behind, tapered surfaces (18) formed on a rear surface of the housing (10) to surround openings (16) of the cavities (11) and inclined to come closer to the inner surfaces (17) of the cavities (11) toward the back, and a pressing portion (32) provided on the dummy plug (30) and configured to be pressed against the tapered surface (18) by a forward force acting on the dummy plug (30).
Electrical receptacle connector
An electrical receptacle connector includes a first insulated member and a second insulated member that are received in a metallic shell. First receptacle terminals are second receptacle terminals are respectively held in the first insulated member and the second insulated member. The first receptacle terminals include first tail portions, the second receptacle terminals include second tail portions, and the first tail portions and the second tail portions are aligned with each other by an offset. Therefore, the soldering condition between the second tail portions and contacts of a circuit board can be checked.
Outlet faceplate extension
An outlet faceplate extension device includes female receiving components at a first side, male electronic components at a second side, and a rim that is connectable to furniture.
Electrical connector and electrical contact configured to reduce resonance along a stub portion
Electrical contact or electrical connector having the electrical contact. The electrical contact has a mating segment that is configured to engage another contact and has a contact end and a contact surface. The contact surface includes a mating zone that is located a distance from the contact end. The mating zone is configured to intimately engage the other contact for electrical communication between the electrical contact and the other contact. The mating segment has a stub portion that extends between the contact end and the mating zone. At least a portion of the contact surface along the stub portion has a textured area that is more textured than the contact surface at the mating zone. The textured area is configured to dampen reflected energy that propagates between the mating zone and the contact end.
A connector is provided which has an actuator able to rotate around a pressure-applying portion arranged below upper beams between an open orientation and a closed orientation, and a stopping portion. The actuator is able to move with the actuator in the closed orientation between a first position where the stopped portion of the actuator comes into contact with the stopping portion to prevent rotation of the actuator from the closed orientation to the open orientation, and a second position where the stopped portion of the actuator has moved away from the stopping portion to allow rotation of the actuator from the closed orientation to the open orientation.