Small form computer data center rack
A data center mounting rack for mounting and supporting a plurality of generally rectangular small form computer systems in a vertical stacked arrangement. The shelving arrangement comprises a pair of spaced apart vertical end panels supporting a plurality of horizontal mounting shelves. Each of the shelves includes a pair of rows of spaced apart first openings extending along the length of each shelf, for allowing the passage of cabling for computers and for permitting cooling air flow. Each of the shelves also includes a plurality of rows of spaced apart air flow openings in a staggered arrangement. Each of the shelves support a plurality of U-shaped computer system mounting brackets. Each of the mounting brackets supports a rectangular small form computer system in a vertical orientation such that air flow is directed along the top surface and bottom surface by the air flow openings to aid in cooling.
Circulative cooling system and method for controlling circulation in the cooling system
A circulative cooling system and a method for controlling the circulative cooling system are disclosed. The circulative cooling system is divided into three parts: an internal cooling circulation device, a plate heat exchanger and an external cooling circulation device. The internal cooling circulation device is adapted to perform circulation cooling on a heat-generating device; the plate heat exchanger is adapted to perform heat exchange between external cooling water in the external cooling circulation device and the internal cooling water in the internal cooling circulation device. The external cooling circulation device is adapted to cool the external cooling water. The external cooling primary circulation pump, the cold accumulation water pool, the water-air plate-wing heat exchanger, the cold accumulation air cooler, and the first valve and the second valve may be controlled.
Electric power converter
An electric power converter includes a semiconductor module, a capacitor, and a DC bus bar that electrically connects them. The capacitor has a capacitor element and a capacitor terminal connected to the capacitor element. The capacitor terminals and the DC bus bar are connected to each other at least at two connecting portions. The DC bus bar has a bus bar main body portion that is connected to the semiconductor module. The two connecting portions are connected by at least a portion of the bus bar main body portion. The capacitor terminal has a terminal main body portion that is connected to the capacitor element. The two connecting portions are connected by at least a portion of the terminal main body portion.
Power supply device, light fixture, and vehicle
A power-supply device including: a casing having a space therein and formed by metal stamping or having a thickness ranging from 0.3 to 3.0 mm; and a circuit board disposed inside the casing, wherein the casing includes a casing portion having an opening, and a cover portion disposed to cover the opening of the casing portion, the casing portion has a through hole formed at a position corresponding to a connector terminal connected to the circuit board, and a non-flat portion is provided to a region having a size greater than or equal to an outside diameter of a connector of an external connector line connected to the connector terminal in the casing portion.
An electronic apparatus is disclosed. In one embodiment, an electronic apparatus comprises a display, a cover member, a piezoelectric vibrating element, a controller, a housing, a bonding material, and an intervening member. The bonding material between the housing and a peripheral end of an inner surface of the cover member is configured to bond the housing and the cover member. The inner surface of the cover member includes a partial region in which the bonding material is absent. The partial region includes a region in which the piezoelectric vibrating element is located and extends to one part of a periphery of the inner surface. The intervening member is located between the housing and a region of the partial region close to the one part of the periphery relative to the piezoelectric vibrating element and is less likely to interfere with a vibration of the cover member than the bonding material.
Movable display device
An upper guide and a lower guide are provided on an escutcheon integrally attached to the chassis. An upper movable pin engageable with and disengageable from the upper guide, a lower movable pin engageable with and disengageable from the lower guide, and a fulcrum switching mechanism that reciprocates the upper movable pin and lower movable pin in the left-right direction are attached to a display body disposed in front of the escutcheon. The fulcrum switching mechanism makes the rotational fulcrum of the display body switchable between a first pivoting state, in which the upper movable pin is engaged with the upper guide and the lower movable pin is disengaged from the lower guide, and a second pivoting state, in which the lower movable pin is engaged with the lower guide and the upper movable pin is disengaged from the upper guide.
Functional module with a housing
The invention relates to a functional module with a housing. The housing is comprised of a holder for a submodule. The submodule can be mounted in the holder in two different rotary positions. The submodules of the functional module can be simply mounted on the functional module as independent elements and replaced on it when necessary. This leads, in particular, to a substantial reduction of expenses for repairs, because only the submodule has to be replaced when there is a defect in a submodule, for instance. Different configurations of the functional module are realized with minor effort because of the possibility of attaching the submodule(s) in different rotary positions on the functional module; especially simple adaptation to different applications is possible because of that.
Electrical switch assembly
An electrical switch assembly for an electrical appliance having an electrical load such as a motor, includes a housing with an opening, switch terminals, and an on/off mechanical switching module. The switch assembly includes an electronic control module operable with a semiconductor switching device to control operation of the load, and a heat sink in thermal contact with the switching device for dissipating heat. The heat sink is electrically conductive and is in electrical circuit connection with a first terminal of the switching device and one of the switch terminals. The heat sink closes the opening and forms part of the housing.
Glass device housing
An electronic device may have a glass housing structures. The glass housing structures may be used to cover a display and other internal electronic device components. The glass housing structure may have multiple glass pieces that are joined using a glass fusing process. A peripheral glass member may be fused along the edge of a planar glass member to enhance the thickness of the edge. A rounded edge feature may be formed by machining the thickened edge. Raised fused glass features may surround openings in the planar glass member. Multiple planar glass members may be fused together to form a five-sided box in which electronic components may be mounted. Raised support structure ribs may be formed by fusing glass structures to a planar glass member. Opaque masking material and colored glass may be used to create portions of the glass housing structures that hide internal device components from view.
Redistribution film for IC package
A redistribution film for IC package is disclosed, which comprises a top redistribution layer configured on top of a bottom redistribution layer. The top redistribution layer is fabricated following PCB design rule, and the bottom redistribution layer is fabricated following IC design rule. Further, the interface between the top redistribution layer and the bottom redistribution layer is optionally made roughed to increase bonding forces therebetween.
Display and multi-layer printed circuit board with shared flexible substrate
An electronic device may be provided with a display and a multi-layer printed circuit. Integrated circuits and other components may be mounted to the multi-layer printed circuit. The display and multi-layer printed circuit may share a common layer formed from a flexible substrate. The flexible substrate may have portions that are integrated into the display and portions that are integrated into the multi-layer printed circuit board. The flexible substrate may contain patterned conductive traces that are used to route signals from components in the multi-layer printed circuit to display circuitry such as a display driver integrated circuit. An array of thin-film transistors may be used to control the emission of light from the display and may be formed on portions of the flexible substrate that are integrated into the display. The display may be a flexible display that includes an array of organic light-emitting diodes.
Transparent electroconductive film
The transparent electroconductive film is provided with: a transparent substrate formed from a film-shaped polymer resin; a first hard coat layer laminated on one surface of the substrate; and a first transparent conductor layer laminated on the upper side of the first hard coating layer. The substrate has a film thickness of 2 to 250 μm. The first hard coating layer is formed from a curable resin containing an inorganic oxide, and has a film thickness of 0.01 μm to less than 0.5 μm, or more than 6 μm to 10 μm. The first transparent conductor layer is formed from at least one material selected from the group consisting of an inorganic oxide, a metal, and carbon, has a film thickness of 10 nm to 2 μm, and is patterned so as to have formed thereon a patterned section and a non-patterned section.
Provided is an electronic equipment which can effectively reduce unexpected unnecessary radiation. In the electronic equipment, a circuit board on which a noise source that is an electronic part becoming a source of the unnecessary radiation is mounted and a circuit board mounting plate on which the circuit board is mounted are disposed substantially parallel with a space put therebetween. In the electronic equipment, a partition plate is disposed, which functions as a noise reflecting surface on which an indirect wave emitted from the noise source towards the circuit board mounting plate is reflected. Further, an indirect wave dispersing member is disposed between the circuit board and the circuit board mounting plate so as to block spacing between the noise source and the partition plate.
Electronic element and electronic device
An electronic element surface-mounted on a substrate has a leg part that protrudes from a back surface of the electronic element toward a heat sink along a peripheral portion of a back electrode. As such, if the substrate warps, the protruding leg part abuts a heat reception surface of the heat sink, thereby preserving an insulation gap between the back electrode and the heat sink. As a result, short-circuiting is prevented.
Discharge lamp lighting apparatus
There is provide a discharge lamp lighting apparatus that comprises a discharge lamp and a power supply device configured to drive a regular lighting mode and the low electric power lighting mode in a switchable manner. The power supply device configured to control a power supply to the discharge lamp such that, in the low electric power lighting mode, after a secondary protrusion forming process in which an alternating current having a frequency equal to or greater than the basic frequency in the regular lighting mode is supplied, the low electric power lighting mode transitioning to a secondary protrusion maintaining process in which a high frequency alternating current having a frequency higher than the basic frequency in the regular lighting mode, and a low frequency alternating current having a frequency lower than the frequency of the high frequency alternating current is alternately supplied.
Wirelessly controlled lighting device
A lighting device includes a housing that defines an opening, and light board moveably positioned in the housing adjacent the opening. The light board has a plurality of light modules operable to provide a light output through the opening. The lighting device further includes a motor operatively connected to the light board to move the light board. The lighting device further includes a controller in electrical communication with the motor and the light board. The controller is operable to receive signals from a communication device. The controller is further operable to control the motor to orient the light board. The controller is further operable to control an intensity and a color of the light output of the light modules.
Low-power data acquisition system and sensor interface
A sensor interface includes on-chip relaxation oscillator circuit and a PLL that operate cooperatively to generate a highly accurate clock signal on-chip using low-power components. A photodiode generates a current signal based on an optical signal that is representative of a sensor signal. An ADC that operates based on the highly accurate clock signal generates a digital signal based on the current signal generated by the photodiode, and a processor processed the digital signal to estimate sensor data within the sensor signal. Examples of characteristics that may be sensed can include environmental characteristics (e.g., temperature, humidity, barometric pressure, etc.) and/or biomedical characteristics (e.g., body temperature, heart rate, respiratory rate, blood pressure, etc.). If desired, an amplifier processes the photodiode-provided current signal before it is provided to the ADC. Also, one or more CDACs that generate feedback currents may be used to reduce noise sensitivity of the sensor interface.
LED tube lamp with two operating modes compatible with electrical ballasts
An LED tube lamp is disclosed. The LED tube lamp includes an LED module for emitting light, the LED module comprising an LED unit comprising an LED; a rectifying circuit for rectifying an external driving signal to produce a rectified signal; and a mode determination circuit configured to detect a state of a property of the rectified signal, for selectively determining on performing a first mode or a second mode of lighting according to the state of the property of the rectified signal; wherein when the LED tube lamp performs the first mode of lighting, the mode determination circuit allows continual current to flow through the LED unit until the external driving signal is disconnected from the LED tube lamp; and when the LED tube lamp performs the second mode of lighting, the mode determination circuit regulates the continuity of current to flow through the LED unit.
Analog circuit for color change dimming
An analog-based dimmable LED lighting system includes a plurality of LED lighting modules, which emit light at different correlated color temperature (CCT) ranges. Each of the LED lighting modules is powered by a common dimming signal in the form of an AC voltage which corresponds to a dimming level in a dimming region. Each of the LED lighting modules includes an LED, an analog rectifier bridge to convert the AC voltage of the common dimming signal to a DC voltage, and an analog current limiter connected between the rectifier and the LED to control current through the LED according to the common dimming signal. The LED(s) in the different lighting modules are controlled, via respective analog current limiter, to produce a resultant light at a selected CCT and light intensity according to the common dimming signal.
Self-healing overtemp circuits in LED lighting systems
A self-healing overtemp circuit is described and illustrated comprising a temperature sensing circuit, a voltage sensing circuit, and optionally, a current sensing circuit. A lower cost, simplified alternative overtemp circuit is also discussed. The self-healing overtemp circuit is designed to ramp down power in an LED lighting system (or other electrical circuit) in response to a sensed or impending thermal runaway (and optionally, overcurrent) event. Said thermal runaway and overcurrent events may be a result of failure of one or more components (e.g., driver, active cooling means) of the lighting system. The self-healing overtemp circuit further comprises means of restoring power to said LEDs in a manner that avoids (i) a perceivably bright flash of light or (ii) increased risk of component failure.
Methods and apparatus for communicating current levels within a lighting apparatus incorporating a voltage converter
Circuits for sensing current levels within an apparatus are disclosed. In specific cases, a constant voltage power supply is used to power an LED lighting apparatus in which there are uncertainties within the forward voltages of the LEDs, which in turn creates uncertainty with respect to the current level flowing through the LEDs. To manage these uncertainties, the current flowing through the LEDs is measured by determining a voltage level across a known resistor and calculating the current level. To prevent the known resistor from causing a significant reduction in the efficiency of the overall light engine, the circuit includes one or more transistors in parallel with the known resistor to reduce the effective resistance in the LED circuit during times that the current is not being sensed.
Modulation engine for dimming control
A modulation engine for a light-emitting-diode (LED) driver is described that includes an output port, a charge current source, a discharge current source, and an output control unit. The output control unit is configured to generate a modulation signal (e.g., a pulse-width-modulation signal) at the output port by at least alternating, based on a duty cycle of the modulation signal, between coupling the charge current source to the output port and the discharge current source to the output port to linearly shape the charge at the output port in accordance with the duty cycle.
Method of crosstalk reduction for multi-zone induction heating systems
Reduction of crosstalk between induction heating coils in an induction heating apparatus and particularly to reduction of crosstalk in a multi-zone induction heating system provides greater reliability for the power modules.
Detection and reporting of keepalive messages for optimization of keepalive traffic in a mobile network
Detection of network transactions or keepalives for maintaining long lived connections are disclosed. A keepalive detector can detect keepalive traffic based on keepalive parameters determined from an analysis of socket level network communication log data that record data transfer events including data sent from mobile applications or clients on a mobile device and data received by the mobile applications or clients on the mobile device, timing characteristics, protocol types, etc. Various statistical analyses can be performed on the network communication data to detect keepalives, taking into account variability in intervals of the data transfer events and sizes of data sent and received on each event. The keepalive detector can also detect keepalives from stream data on a mobile device by analyzing socket level communication messages including timing characteristics and amount of data transferred to detect keepalives and report keepalives using a data structure.
Base station, device to device user equipment, transmission method, report method and resource adjustment method for wireless communication system
A base station and a device to device (D2D) user equipment (UE), a transmission method, a report method and a resource adjustment method for a wireless communication system are provided. When the D2D UE operates as a transmitting end, it is able to determine a transmission mode according to a transmission condition (e.g., whether a radio link failure or a collision occurs when a D2D transmission is being performed, or whether the telecommunication operators of the transmitting end and the corresponding receiving end are the same). When the D2D UE operates as a receiving end, it is able to transmit a report message carrying received signal quality to the base station after receiving D2D data. Accordingly, the base station is able to adjust a D2D resource configuration according to the report message.
Method by which terminal for supporting multiple radio access technologies recovers when radio link failure has occurred and device for same
A method by which a terminal for supporting multiple radio access technologies (multi-RAT) recovers when a radio link failure has occurred can comprise the steps of: detecting a radio link failure of a first RAT while maintaining an RRC connection state with the first RAT; determining the radio link failure if a radio link of the first RAT does not recover after a predetermined first time elapses after the detection; and determining whether the radio link failure of the first RAT recovers during a predetermined second time after the determination.
Communication terminal device, communication system, and communication method used by workers undertaking dangerous operations
A first communication unit communicates with a first communication terminal device by using a first communication scheme. A second communication unit communicates with a second communication terminal device by using a second communication scheme capable of communication over a longer distance than the first communication scheme. A search instruction communicating unit communicates a search instruction to the second communication terminal device via the second communication unit, the search instruction including an identifier identifying a first communication terminal device, and instructing the second communication terminal device to search for the first communication terminal device by using the first communication scheme.
Network assisted automatic disaster trigger to enable device-to-device (D2D) ad hoc communication
Systems, methods, apparatuses, and computer program products for automatically switching to D2D communication in a disaster situation is provided. One method includes receiving, by a user equipment, a list of base station sites comprising locations and geographical signal coverage of the base station sites and a list of Wi-Fi access points comprising locations and geographical signal coverage of the Wi-Fi access points. The method may also include creating at least one local database storing information received in the list of base station sites and the list of Wi-Fi access points.
Methods of supporting location and emergency calls for an over-the-top service provider
Methods and apparatuses for supporting location and emergency calls for an over-the-top (OTT) service provider are disclosed. A UE may send a request for an emergency call to an OTT service provider and may include in the request mobile network operator (MNO) data for a serving MNO for the UE. The OTT service provider may forward the emergency call request to an Internet Protocol (IP) Multimedia Subsystem (IMS). The IMS may determine routing information for the emergency call and either return the routing information to the OTT service provider to enable the OTT service provider to route the emergency call to a public safety answering point (PSAP) or may route the emergency call itself to the PSAP. The call request routed by the IMS or by the OTT service provider may include a reference identifier that may enable the PSAP to obtain a location for the UE from the IMS.
Method and apparatus for channel access via null data packet frame in wireless LAN system
The present invention relates to a wireless communication system, and more specifically to a method and an apparatus for channel access via a null data packet frame in a wireless LAN system. A method for channel access from a station (STA) in a wireless communication system according to one embodiment of the present invention comprises the steps of: receiving, from an access point (AP), configuration information for one or more slots for channel access; receiving a first frame, from the AP, from a particular slot from among the one or more slots; and starting channel access after receiving the first frame, wherein the first frame can be a null data packet (NDP) frame.
System and method for contention-free random access
A method for initiating a random access includes generating a first downlink control information (DCI) including random access parameters and selecting a control channel from a first downlink control channel in common search space of a first subframe and a second downlink control channel in a data region of the first subframe. The method also includes mapping the first DCI to the control channel and transmitting, by a communications controller to a UE, symbols of the first subframe including the first DCI in the control channel. Additionally, the method includes receiving, by the communications controller from the UE, a random access waveform in accordance with the random access parameters and transmitting, by the communications controller to the UE, after receiving the random access waveform, a second subframe including a second DCI in a control channel of the second subframe, where the second DCI includes scheduling information for a random access response.
D2D communications system and allocation method of resources and power using the same
A base station included in the D2D communication system: a shared resource allocation unit configured to select a resource block having highest performance in D2D communication from a plurality of resource blocks occupied by a plurality of cellular terminals and to set the shared resource block to be shared by a corresponding D2D terminal; an exclusive resource allocation unit configured to select at least one other D2D terminal with which to share an exclusive resource block occupied by the corresponding D2D terminal for the D2D communication and to set the exclusive resource block to be shared by the at least one other D2D terminal; and a power allocation unit configured to create a virtual resource block by matching the shared resource block and the exclusive resource block and to control powers allocated to the shared resource block and the exclusive resource block included in the virtual resource block.
ENB, UE and method for physical resource block allocation in MTC UE
Embodiments allow an eNBs and a target UE to both calculate which resource block groups (RBGs) to use to transmit data. Because the RBGs that will contain information of interest can be pre-calculated, there is no need to receive and store all RBGs in the transmitted signal before decoding the signal and identifying which RBGs are of interest to the recipient. This allows receivers to buffer and/or store only those RBGs that will contain received information and discard others. The amount of information that needs to be stored and/or buffered thus is less and can result in receivers with less memory and, hence, lower cost. In order to calculate which RBGs are to be used to transmit and/or receive information, a logical RBG index is first calculated and the logical RBG index is mapped to a physical RBG index.
Method and apparatus for transmitting device-to-device related information in wireless communication system
A method is presented for configuring a device-to-device (D2D) mode by an eNodeB (eNB) in a wireless communication system. The eNB configures the D2D mode indicating which D2D mode a user equipment (UE) operates in for a D2D communication. The eNB transmits an information on the configured D2D mode to the UE. The D2D mode is one of an evolved-universal mobile telecommunications system (UMTS) terrestrial radio access network (E-UTRAN) planned mode or a UE autonomous mode. The E-UTRAN planned mode is a D2D mode in which the eNB controls radio resources for the D2D communication, and the UE autonomous mode is a D2D mode in which the UE controls radio resources for the D2D communication.
Cell deployment with different channel bandwidth for carrier aggregation
Systems, methods, apparatus, and techniques are provided for transmitting information to user equipment (UE) in a communications network. Data is generated in (i) a first frequency range associated with a first set of carriers and (ii) a second frequency range associated with a second set of carriers, where the first frequency range specifies a first communications cell and the second frequency range specifies a second communications cell. The first cell, is assigned as a primary cell to a first set of UEs in the communications network. Control data is transmitted to both the first set of UEs and a second set of UEs using at least a portion of the first set of carriers.
Distributed mechanism for medium reservation and prioritization of IOE communications
In an aspect of the disclosure, a method, a computer program product, and an apparatus are provided. The apparatus may be a first node. The first node determines to transmit a first packet to a second node in a first data slot of a first frame. The first data slot being associated with a first reservation resource and a second reservation resource. The first node determines whether the first node has a privilege for the first data slot of the first frame, when the first packet is of priority based traffic. The first node transmits a reservation message to the second node in the first reservation resource when the first node is determined to have the privilege for the first data slot.
Adapting a number of aggregation levels for control channel elements
Methods and apparatuses are provided for a User Equipment (UE) to receive control information. A Downlink Control Information (DCI) format to be monitored is identified. An aggregation level and a number of Enhanced Physical Downlink Control Channel (EPDCCH) candidates are identified based on the identified DCI format. Control information is received based on the identified aggregation level and the identified number of EPDCCH candidates.
Adapting a number of aggregation levels for control channel elements
Methods and apparatuses are provided for a User Equipment (UE) to receive control information. A downlink bandwidth is identified. Aggregation level is identified based on the identified downlink bandwidth. Control information is received based on the identified aggregation level.
Adapting a number of aggregation levels for control channel elements
Methods and apparatuses are provided for a User Equipment (UE) to receive control information. A Downlink Control Information (DCI) format to be monitored is identified. A number of Enhanced Physical Downlink Control Channel (EPDCCH) candidates are identified based on the identified DCI format. Control information is received based on the identified number of EPDCCH candidates.
High-efficiency Wi-Fi (HEW) station and access point (AP) and method for signaling of channel resource allocations
Embodiments of a high-efficiency Wi-Fi (HEW) station, access point (AP), and method for communication in a wireless network are generally described herein. In some embodiments, the HEW AP may transmit a resource allocation message to indicate an allocation of channel resources for uplink transmissions by one or more HEW stations. The channel resources may include multiple channels, each of which may include multiple sub-channels and an extra portion of channel resources. The resource allocation message may include multiple sub-channel allocation blocks to indicate an allocation for a particular HEW station. A length of the sub-channel allocation blocks may be based on various factors, such as a number of channels included in the channel resources and a sub-carrier bandwidth.
Method and apparatus for receiving downlink signal in wireless communication system
The present invention relates to a method by which a terminal receives a downlink signal through an enhanced physical downlink control channel (EPDCCH) in a wireless communication system. The method includes the steps of: receiving one or more EPDCCH physical resource block (PRB) sets; and blind decoding EPDCCH candidates for each set level from among the one or more EPDCCH PRB sets, wherein one or more of EPDCCH candidate indexes and EPDCCH PRB indexes are used for determining an antenna port related to the EPDCCH candidates.
A radio network controller, RNC, keeps control of how many users to configure on a first transmission time interval, TTI, and how many to configure on a second TTI. For example, a method, performed by the RNC, for configuring at least one radio bearer between a radio base station, RBS, and wireless communication devices. The method comprises receiving, from the RBS, a request to perform a TTI switch according to a TTI switch trigger received by the RBS. The received request is analyzed and a grant to perform the requested TTI switch is sent to the RBS.
Reporting method of terminal buffer state report (BSR), obtaining method for obtaining BSR from base station, and corresponding terminal, base station, communication system
The present invention provides a reporting method of terminal Buffer State Report (BSR), obtaining method for obtaining the BSR from a base station, and corresponding terminal, base station, communication system. The terminal includes: buffer state index table; at least one extended buffer state index table; index table selector, selecting one of the index table from the said buffer state index table and the said at least one extended buffer state index table; index determination device, determining the index which is corresponding to the data quantity in the said index table according to the data quantity in the terminal buffer; index sender, sending the said index to the base station.
Systems and methods for providing wireless unconnected communication between devices
The present disclosure describes exemplary embodiments of systems and methods for enabling and managing unconnected communication between Wireless Enabled Devices (WEDs). One or more exemplary embodiments may include the utilization of Network Information Strings or other wireless identifiers to transmit information or content between WEDs where the information or content included in the unconnected communication may not be related to the operation of a wireless network.
Method and apparatus for reducing access overhead from paged device in machine to machine communication system
An apparatus for an idle mode terminal is configured to perform a method for operating the idle mode terminal in a Machine to Machine (M2M) communication system. A paging message is received from the base station during a paging listening interval. The Apparatus determines whether an indicator indicating receipt of multicast group data is included in the paging message. When the indicator indicating the receiving of multicast group data is included, data transmitted via a downlink resource that uses an identifier mask of a multicast group to which a terminal belongs is received. Thereafter, a paging non-listening interval is entered.
Human mobility rule-based device location tracking
Techniques are presented herein to provide human mobility pattern based modeling and tracking of a group of network enabled user devices associated with the same person. An association is made, at a tracking device, between a plurality of user devices and a user. Location information for each of the plurality of user devices is derived through network activity of the plurality of user devices. Locations for the plurality of user devices are derived from the location information. One or more predetermined user mobility pattern rules are applied to the plurality of user devices. User anomalies are detected when the tracked locations indicate that one or more of the plurality of user devices has violated one or more the predetermined user mobility rules.
Information processing apparatus, information process method and program
Provided is an information processing apparatus including: a wireless station information acquisition unit which acquires information showing wireless stations with which a terminal apparatus is capable of communicating; a clustering unit which generates a wireless station cluster by clustering the wireless stations based on a time at which the wireless stations are capable of communicating with the terminal apparatus; and a stay detection unit which detects a state in which the terminal apparatus is capable of communicating with wireless stations included in the wireless station cluster as a state in which the terminal apparatus is staying at a location corresponding to the wireless station cluster.
Method and communication system for storing address of network anchor point to network server
A method, apparatus and communication system for registering address information of a network anchor point to a network server are disclosed. A network apparatus, such as a mobility management entity, determines whether to register address information of a network anchor point to a network server, and registers the address information of the network anchor point to the network server when determining to do so.
Method for controlling signal transmission power and device for same
A method for controlling transmission powers by a communication apparatus in a wireless communication system supporting a plurality of component carriers, the method includes controlling transmission powers for one or more channels per each component carrier in such a way that a total transmission power of one or more channels in a corresponding component carrier does not exceed a maximum transmission power configured for the corresponding component carrier; when a simultaneous transmission of a sounding reference symbol (SRS) on a first component carrier, and a physical uplink shared channel (PUSCH) and a physical uplink control channel (PUCCH) on a second component carrier is scheduled, checking whether a total transmission power of the SRS, the PUSCH and PUCCH exceeds a maximum transmission power configured for the communication apparatus; and dropping a transmission of the SRS if the total transmission power of the SRS, the PUSCH and PUCCH exceeds the maximum transmission power configured for the communication apparatus.
Uplink power control
The embodiments herein relate to a method in a centralized baseband unit (CBU) for generating a common UL-TPC stream in a network. The CBU is connected to a plurality of RRUs. Each RRU is connected to a UE via a respective RLS of a plurality of RLSs. Each respective RLS comprises at least one radio link. The CBU receives, from each RRU a stream of uplink power samples measured for each RRU on the at least one radio link comprised in each respective RLS between the UE and the plurality of RRUs. The CBU generates the common UL-TPC stream based on the received measurements of uplink power. The common UL-TPC stream is to be sent to each RRU for further transmission to the UE.
Reduction of power consumption in a half-duplex transceiver
Circuits and methods for reducing power consumption in a half-duplex transceiver are disclosed. In an embodiment, a power management circuit of half-duplex transceiver includes direct current to direct current (DC-DC) converter and snooze mode controller. The DC-DC converter includes switching circuit and driver circuit to drive the switching circuit. The DC-DC converter provides power supply to at least one element of a transmitter sub-system of the half-duplex transceiver, and operates in snooze control modes. The snooze mode controller is coupled to the DC-DC converter and configured to generate a control signal based on at least one transceiver operating input, where the control signal causes the DC-DC converter to operate in one of the snooze control modes, the snooze control modes corresponding to snooze duty cycles and where in each snooze control mode, the switching circuit and the driver circuit remain in an OFF-state based on a respective snooze duty cycle.
Energy efficient maximization of network connectivity
The minimization of the amount of power consumed by an electronic device in acquiring or maintaining network connectivity with a network may extend the battery life of the electronic device. When the electronic device has established a communication connection with a wireless access point, the electronic device cycles a network interface controller of the electronic device between a power on state and a power off state without terminating the communication connection. Accordingly, the electronic device powers on a main processor of the electronic device when the network interface controller detects a beacon during the power on state that indicates the wireless access point has a buffered data frame for the electronic device.
Method and a system for optimizing battery usage of an electronic device
A method and a system are provided for optimizing battery usage of an electronic device. The method comprises determining, by a battery optimization unit, a degree of criticality of environment in which one or more sensors are operating based on one or more pre-defined conditions. The method further comprises determining, by the battery optimization unit, a plurality of parameters comprising an energy level of the electronic device, an available processing power, and an available communication network bandwidth associated with the electronic device. The method further comprises processing, by the battery optimization unit, a first portion of sensor data locally based on the degree of criticality of environment and a priority based rule engine, wherein the priority based rule engine is configured to optimize battery usage of the electronic device based on the plurality of parameters.
User equipment and method in a communications network
A method in a User Equipment (UE) of performing measurements of a plurality of measurement types is provided. The UE performs a measurement of a first measurement type and at least one of a measurement of a second and a third measurement type. In the performed measurements: the at least one of a measurement of the second and the third measurement type is performed during a required time such that first pre-defined requirements for the at least one of a measurement of the second and third measurement type are met, the required time forming part of a time available for measurements, and the measurement of the first measurement type is performed during a remaining time, during which the at least one of a measurement of the second measurement type and a measurement of the third measurement type is not performed.
Wireless transmission device, wireless reception device, wireless transmission program, wireless reception program, and wireless communication system
There is provided a wireless transmission device in which a lower layer processing unit inserts first random delay before frame transmission in response to a frame transmission request made by an upper layer processing unit, the wireless transmission device including a frame transmitting unit configured to transmit a frame when the frame transmission request is made by the upper layer processing unit, and a frame group transmitting unit configured to transmit a frame group including one or two or more types of frame in accordance with a listening state of a facing wireless reception device when the frame transmission request is made by the upper layer processing unit.
Method and apparatus for performing priority based cell reselection
A method and an apparatus for priority based inter-radio access technology (inter-RAT) cell reselection are provided. In the existing algorithm for priority based inter-RAT cell reselection, an inter-RAT cell whose signal strength is above a preset threshold for a given duration is considered as satisfying the cell reselection criteria and may become a candidate for cell reselection. In this case, among those cells whose signal strength is above the preset threshold, a cell that does not have the highest priority may be selected. To address the above problem, the reference time duration for cell reselection may be changed. The enhanced cell reselection algorithm selects a cell having the highest priority among cells whose signal strength is above a preset threshold. Hence, it is possible to prevent repetition of unnecessary cell reselection.
Method of using UE discovery for paging optimization
Methods and apparatus are described for refining, e.g., reducing, a paging area corresponding to a user equipment device, e.g., a cellular inactive UE device. Various embodiments are well suited for communications systems in which user equipment devices participate in peer to peer communications networks in which direct user device to user device communications are employed. A user equipment device participating in a peer to peer network transmits discovery signals. A femto base station and/or a cellular active UE device in the local vicinity of the UE device transmitting the peer to peer discovery signal eavesdrops on the peer discovery signaling and detects the presence of the cellular inactive UE device. The detection of the cellular inactive UE device is reported to a MME. The MME determines a paging area corresponding to the detected UE device based on the reported information and the location of the reporting device.
System and method for digital communication between computing devices
A wireless communication device, comprising radio frequency transceivers which transmit outbound messages to targeted receivers, and receive the inbound messages addressed to the respective transceiver; each having a processor which controls the transceiver to establish communication sessions according to a protocol, and processes targeting and address information. The transceiver communicates with a telephone device having a telephone address book containing information which defines the targets and address for a telephone network and perhaps other networks. The address book entries are human editable through a human machine user interface. The address book entries are intended for centrally controlled switch networks having hierarchically formatted address information, but since these are at least quasi-unique, they are used as address labels in an unswitched peer-to-peer network formed of the transceivers. This permits a common address scheme across the peer-to-peer network and switched network of the telephone device.
Method and apparatus for performing component carrier-specific reconfiguration
Methods and apparatus are described. A method, implemented in a wireless transmit/receive unit (WTRU), includes receiving a single radio resource control (RRC) connection reconfiguration request. The single RRC connection reconfiguration request includes individually, for each of a plurality of cells, physical configuration information. One of the plurality of cells is a primary cell and other cells of the plurality of cells are non-primary cells. Measurement configuration information is received that configures the WTRU to send a measurement report on a condition that a neighboring cell is better than a non-primary cell by an amount.
Co-channel deployment of new and legacy carrier types
Methods for changing a carrier type from a first carrier type to a second carrier type are disclosed. An example method may be implemented in one or more nodes of a cellular system that includes a plurality of cells that can each be selectively operated with either a first carrier type or a second carrier type, one of the first and second carrier types either having substantially fewer reference symbols than the other or lacking a control structure supported by the other, or both. The example method begins with determining (800) that a cell or cells should be switched from the first carrier type to a second carrier type. This may be done based on, for example, an evaluation of UE performance criteria, e.g., whether one or more UEs are capable of operating on the second carrier type and/or whether one or more UEs may receive a higher quality of service from the second carrier type. The example method continues with changing (810) the carrier type on the cell or cells from the first carrier type to the second carrier type.
Handover processing method, apparatus, and system
A handover processing method, apparatus, and system include: receiving a first handover trigger message sent by a first network element node; and sending a second handover trigger message to a second network element node according to the first handover trigger message, so that the second network element node hands over user equipment UE from the first network element node to the second network element node according to the second handover trigger message. Handover between small cells or between a small cell and a macro cell is implemented, and because a controller is used to perform handover, a handover delay is effectively reduced, and network performance is improved.
Method and apparatus for transmitting cell shaping indication in wireless communication system
A method and apparatus for transmitting a cell shaping/un-shaping indication in a wireless communication system is provided. A first eNodeB (eNB) transmits a cell shaping/un-shaping indication which indicates cell shaping/un-shaping of a cell, managed by the first eNB, in an active antenna system (AAS) to a second eNB. The cell shaping means that main coverage of the cell is maintained unchanged but an edge of the cell can be adapted to load demand. The cell un-shaping means that coverage of the cell goes back to original coverage.
Terminal for a content centric network and method of communication for a terminal and a hub in a content centric network
A method of communication for a terminal in a content-centric network is provided. The method includes suspending a data message associated with a content from being provided to a face before a handover when the handover is expected to occur in the terminal that requests the content, and transmitting, to a hub, a new interest message after the handover associated with the content so that the hub may provide the data message associated with the content to the face after the handover.
Method for determining radio resource control configuration in a wireless communication system supporting dual connectivity and apparatus thereof
A method for determining a radio resource control (RRC) configuration in a wireless communication system supporting dual connectivity, and an apparatus supporting the same is disclosed. The method for determining, by a base station (BS), a radio resource control (RRC) configuration in a wireless communication system supporting dual connectivity, includes transmitting, by a first BS, a first RRC configuration of a serving cell of the first BS or remained user equipment (UE) capability to a second BS configured in a UE, and receiving, by the first BS, a second RRC configuration of a serving cell of the second BS configured in the UE from the second BS. The first BS and the second BS are involved in dual connectivity for the UE, and the second RRC configuration is determined by the second BS based on the first RRC configuration or the remained UE capability.
Method and system for wireless networking using coordinated dynamic spectrum access
A method and system for coordinated dynamic access to radio spectrum for wireless networking includes defining a coordinated access band (CAB) from which radio access network (RAN) managers may request spectrum allocations in the form of time bound spectrum leases for their respective requesting base stations. In one embodiment of the present invention, a DIMSUMnet architecture is implemented to make some fundamental choices and to centralize the collection of information, such as spectral occupancy, thermal and adjacent frequency interference. Such collected information is subsequently used by a spectrum broker in making spectrum allocation decisions. The DIMSUMnet architecture of the present invention also introduces a RAN manager element to centralize the task of acquiring time bound spectrum leases and for configuring the base stations.
Indicating routing capacity related data or routing delay related data via signalling messages in a core network of a telecommunications network using diameter messages
A method for indicating routing capacity related data or routing delay related data via signalling messages in a core network of a telecommunications network using Diameter messages of a Diameter protocol includes: transmitting a first piece of routing capacity related information from a first Diameter enabled network node to a second Diameter enabled network node, and transmitting a second piece of routing capacity related information from the first Diameter enabled network node to the second Diameter enabled network node. The first and second pieces of routing capacity related information are transmitted by at least one Diameter message, wherein the first piece of routing capacity related information comprises aggregated routing capacity data or aggregated routing delay data related to a first routing alternative, and the second piece of routing capacity related information comprises aggregated routing capacity data or aggregated routing delay data related to a second routing alternative.
Method and apparatus for detecting a traffic suppression turning point in a cellular network
Methods and apparatus for detecting a traffic suppression turning point in a communications system based on traffic behavior are provided. Models representing relationship between traffic loads and a key performance indicator of a cell or a cluster of cells may be built and tested to generate a set of prediction errors corresponding to a plurality of traffic load ranges. The prediction errors are examined against a criteria to determine a traffic suppression turning point in terms of traffic loads. The models built may also be used to calculate a set of KPI slope values corresponding to different traffic load ranges. The set of KPI slope values are examined against a criteria to determine a traffic suppression turning point in terms of traffic loads.
Mobile device test infrastructure
A mobile device test module enables a remote client to execute client-developed mobile device applications on a mobile device, via a communication network, to test application performance on the mobile device. The module includes a host compute board which establishes a device communication link, which can include a wireless link, with a mobile device mounted in the module and generates commands to the mobile device based on signals received at the board. The module restricts the host compute board and mobile device to device communication links between each other. The module housing can restrict device communication links with devices external to the module. The module can be installed in a slot of a chassis which can provide structural, power, and communication support to the module. The chassis includes interface clusters which each can support various modules installed in the slots and can support redundant links with an installed module.
Methods and radio access node for determining a cell state
A method in a radio access node performs a sleepy cell test which can determine a cell state for a cell served by a radio access node. Fulfilment of a predetermined triggering condition is detected in a radio access node. Following detection of the fulfilled triggering condition, one or more user equipment to be paged is determined. The radio access node initiates a page response timer period and performs paging of the user equipment until there is time out of the timer period or a page response is received from the one or more user equipment. The paging responses received while performing the step of paging the user equipment is assessed. A cell state alert message reflecting the result from the paging is generated and sent to a receiving entity. Related radio access nodes configured to carry out the sleepy cell test and methods are disclosed.
System, method and apparatus for wireless sensor network configuration
A remote user can specify data collection and processing characteristics of a wireless sensor network. In one example, a configuration station enables a user to activate/deactivate different sensor channels of data to support a delivery of data streams to customers. In another example, a configuration station enables a user to specify reporting intervals for different sensor channels of data. In yet another example, a configuration station enables a user to specify transformation functions for different sensor channels of data. The remote configuration process can be applied to every sensor in every sensor module unit attached to every wireless node at a monitored location.
Systems and methods for utilizing authentication requests for on-demand provisioning of access-point accounts
The disclosed computer-implemented method for on-demand provisioning of access-point accounts may include receiving, at an access point, a first request from an unknown guest to access a secured network. The guest may not yet have an account with the access point that allows the guest to access the secured network, and the first request may include authentication information that was generated from a credential of the unknown guest that is required by the access point to provision the account for the guest. The computer-implemented method may further include (1) receiving a second request that includes the credential from an administrator of the secured network to provision the account for the guest using the credential, (2) provisioning the account for the guest using the credential, and (3) enabling the guest to access the secured network using the account for the guest. Various other methods, systems, and computer-readable media are also disclosed.
Security authentication method, device, and system
A security authentication method, device, and system are provided. A first device and a second device perform security authentication by using a first mapping key and a second mapping key, where the first mapping key is generated according to an initial key of the first device and a first predetermined algorithm, the second mapping key is generated according to an initial key of the second device and the first predetermined algorithm. A device in embodiments of the present invention performs security authentication by using a mapped initial key, which can increase the difficulty for an attacker to acquire a key, thereby improving security of a wireless network connection.
A method of user authentication by an application (1a) on a mobile telephony device (1) comprises authenticating the user by interaction with the application (1a), communicating with a remote authentication service (4) to receive a call identifier; and sending the call identifier within a telephone call to the remote telephony service (9), by means of which the user is authenticated to the remote telephony service (9). The mobile telephony device may receive a service code linked to the remote telephony service, and the call identifier may be based on this code. The service code may be captured or entered manually into the mobile device, or obtained from an application on the mobile device (1), such as a mobile banking application. The call identifier may be hidden within the call using audio steganography. The authentication service (4) may link the user to a remote service account ID, which is sent to the remote server.
Reducing fraudulent activity associated with mobile networks
In one embodiment, a network interface receives a communication associated with a networked device over a communication link of a radio access network. A processor determines whether the communication is an emergency communication, and a memory stores location information of the networked device associated with the emergency communication. The network interface then receives, from a requesting user, a location request, wherein the location request identifies a requested networked device. The processor determines whether the identification of the requested networked device matches an identification of the networked device. When the identification of the requested networked device matches the identification of the networked device, the network interface further operable to communicate the location information of the networked device to the requesting user.
Method of transmitting counting response message indicating service area at user equipment in wireless communication system and apparatus thereof
A method of processing Long Term Evolution (LTE) Multimedia Broadcast Multicast Service (MBMS) messages by a user equipment (UE) in a wireless communication system. The method according to one embodiment includes receiving a first LTE MBMS message comprising information on one or more MBMS services from a network; and transmitting a second LTE MBMS message indicating a specific Multimedia Broadcast multicast service Single Frequency Network (MBSFN) area of an MBSFN area list and a specific MBMS service to the network after receiving the first LTE MBMS message, the UE receiving or being interested to receive the specific MBMS service of the one or more MBMS services. The MBSFN area list is included in system information.
Advanced automatic loop detection in short message service (SMS) two-way messaging
An advanced automatic loop detection apparatus and method in short message service (SMS) two-way messaging is provided. The apparatus may receive a reply message from a mobile device, and detect whether a loop is occurring when the reply message is received from the mobile device.
Sharing a talkgroup
A request to provide a sharecode is received from a first communication device associated with a first organization, and the sharecode is provided. Thereafter, the sharecode and a talkgroup sharing parameter are received from a second communication device associated with a second organization. The talkgroup sharing parameter identifies a talkgroup associated with the second organization to be shared with the first organization. An indication that one or more devices associated with the first organization are permitted to participate in the talkgroup associated with the second organization then is provided to the first communication device associated with the first organization. Thereafter, a request is received from the first communication device associated with the first organization to add a device associated with the first organization to the talkgroup associated with the second organization, and a device associated with the first organization is added to the talkgroup associated with the second organization.
Selective use of single-link communication and group communication
A method of controlling a communication mode of a device in a wireless communication network comprises determining a group communication performance for a group communication mode of the device, determining a single-link communication performance for a single-link communication mode of the device, comparing the group communication performance with the single-link communication performance, and controlling the device to operate in the group communication mode or the single-link communication mode based on the comparison.
Method and wireless transmit/receive unit (WTRU) for receiving multimedia broadcast/multicast service
A method and wireless transmit/receive unit (WTRU) for receiving a multimedia broadcast/multicast service (MBMS) data is disclosed. A WTRU receives MBMS data segments from a first MBMS transmitting source along with segmentation information. The WTRU receives MBMS data segments and segmentation information from a second MBMS transmitting source. The MBMS data segments from the first MBMS transmitting source and the MBMS data segments from the second MBMS transmitting source are received in different order. The WTRU reassembles the MBMS data segments based on the segmentation information received from the first MBMS transmitting source and the second MBMS transmitting source.
Method and system for prompting signal covered area
A method and a system for prompting a signal coverage area are disclosed, which relate to the field of mobile communications. The method for prompting the signal coverage area disclosed in the embodiment of the present document includes: when detecting a signal coverage area searching instruction from a user, a mobile terminal performs positioning operation, acquiring current location information of the mobile terminal, and according to signal strength around a current location of the mobile terminal, determining a list of blind areas around the current location; and the mobile terminal prompting the user to open a map, and displaying the current location of the mobile terminal on the map, and displaying signal coverage areas near the current location according to the list of blind areas. The embodiment of the present document also discloses a system for prompting a signal coverage area.
Quantifying mobility of mobile devices via a privacy preserving mobility metric
Embodiments of the invention generate metrics quantifying the mobility of a mobile device without persisting information related to the device's specific location at any given time. Specifically, at multiple intervals, a value of a mobility metric is computed based on the distance between the current location of the mobile device and a previously identified origin location of the mobile device. The values of the mobility metric computed over a period of time quantify the overall mobility of the mobile device. The mobility metric does not provide any information regarding the specific location of the mobile device at any given time.
Providing information to a mobile device based on an event at a geographical location
A system, method, and computer readable medium for providing information to a mobile device based on an event comprising detecting an occurrence of the event, determining if the event is a specific event and if the event occurred at or near a geographical location and sending an alert of the event to at least one mobile device if the event is the specific event, if the event occurs at or near the geographical location, and if the at least one mobile device is located at or near the geographical location.
Systems and methods to identify a predefined geographical region in which a mobile device is located
Systems and methods including a mobile device determining the coordinates of its location using a location determination system, such as a global positioning system. A database stores the identifiers of cells representative of predefined regions in a hierarchical grid system. A server computer or the mobile device converts the coordinates of the location to one or more cell identifiers at different grid resolution levels and searches the database to find a match between the cell identifiers representing the regions and the cell identifiers representing the location of the mobile device to determine one or more regions in which the mobile device is located. For example, the hierarchical grid system can be constructed in a longitude latitude space of location coordinates, with resolution levels aligned with decimal precision levels of the location coordinates; and the cell identifiers can be constructed from the digits of the longitude and latitude coordinates.
Electronic device which modifies a boundary of a time zone used to set a current date and time, and method and non-transitory recording medium thereof
A timer unit to counts a current date and time, a current position acquisition unit to acquire a current position, a determination unit to determine a time zone in which the acquired current position is included, and a local time acquisition unit to calculate local time corresponding to a time difference of the time zone determined by the determination unit are included. When a boundary line of the time zone is along a coastline, the determination unit changes the boundary line from the coastline to a side of a sea in a predetermined distance range and determines a time zone.
Adaptive location perturbation
An example of adaptive location perturbation can include selecting, by a processing resource of a mobile device executing instructions stored on a non-transitory medium, between a plurality of localization technologies to perturb a location measurement of the mobile device. The perturbed location measurement of the mobile device can be sent to a location-based service provider.
Method for establishing bluetooth connection and mobile terminal
A method for establishing a Bluetooth® connection, a mobile terminal, a Bluetooth® device, and a system, where the method includes establishing data connections with at least two Bluetooth® devices, obtaining a voice connection instruction, where the voice connection instruction includes identification information of a target Bluetooth® device selected by a user from the Bluetooth® devices, and establishing a voice connection between the mobile terminal and the target Bluetooth® device according to the voice connection instruction. A voice connection is established with a Bluetooth® device selected by a user in order to improve an extent to which a Bluetooth® connection is established intelligently and a capability of interacting with the user. Therefore, the user can, according to needs, freely select a Bluetooth® device with which a connection is established, thereby improving convenience of the user in using the Bluetooth® device.
Wireless communication network association and security for control of industrial equipment in harsh environments
In certain embodiments, a system includes a master node device. The master node device includes communication circuitry configured to facilitate communication with a welding power supply unit via a long-range communication link, and to facilitate wireless communication with one or more welding-related devices via a short-range wireless communication network. The master node device also includes control circuitry configured to associate the one or more welding-related devices with the short-range wireless communication network. The master node device further includes means for manually initiating association of the one or more welding-related devices with the short-range wireless communication network.
Wireless communication apparatus, wireless communication system, and channel estimating method
A wireless communication apparatus includes antenna elements, each receiving a first signal and a second signal, a first estimator that estimates first channel information of the first signal, a false signal generator that generates false signals that are equal in number to or greater in number than the number of the antenna elements, each of the false signals arriving from a unique direction that is different from a direction of arrival of the first signal, a weight generator that generates first weights, each being associated with a corresponding one of the false signals and forming a null in the direction of arrival of the first signal, a multiplier that multiplies a signals received by the respective antenna elements by the first weights to acquire weight-multiplied signals, and a second estimator that estimates second channel information of the second signal using the weight-multiplied signals.
Automated setup of a station on a wireless home network
A system for automating setup of a station on one among a plurality of wireless home networks each associated with a distinct subscriber and each including a wireless access point (WAP) node supporting wireless communications with an associated set of station nodes. A station provisioner circuit couples to the WAP nodes to acquire credentials for a new station prior to delivery to an identified one of the subscribers; and to inject the acquired credentials into a corresponding one of the WAP nodes which services the wireless network of the identified one of the subscribers. A secure link management circuit on the corresponding one of the WAP nodes utilizes the acquired credentials from the station provisioner circuit for identification of the new station shipped to the identified subscriber; and for setup of a secure wireless communication link between the new station and the corresponding WAP node which services the subscriber's wireless home network.
Adaptive audio content generation
Embodiments of the present invention relate to adaptive audio content generation. Specifically, a method for generating adaptive audio content is provided. The method comprises extracting at least one audio object from channel-based source audio content, and generating the adaptive audio content at least partially based on the at least one audio object. Corresponding system and computer program product are also disclosed.
Rendering audio using speakers organized as a mesh of arbitrary N-gons
In some embodiments, a method for rendering an audio program indicative of at least one source, including by panning the source along a trajectory comprising source locations using speakers organized as a mesh whose faces are convex N-gons, where N can vary from face to face, and N is not equal to three for at least one face of the mesh, including steps of: for each source location, determining an intersecting face of the mesh (including the source location's projection on the mesh), thereby determining a subset of the speakers whose positions coincide with the intersecting face's vertices, and determining gains (which may be determined by generalized barycentric coordinates) for speaker feeds for driving each speaker subset to emit sound perceived as emitting from the source location corresponding to the subset. Other aspects include systems configured (e.g., programmed) to perform any embodiment of the method.
Disclosed is a speaker module which relates to the technical field of electroacoustic products and comprises shells (10, 20), wherein a loudspeaker unit (30) is accommodated in the shells (10, 20); an elastic piece (40) is provided on the loudspeaker unit (30); and a conductive structure (22) electrically connected to the elastic piece (40) is provided on the shells (10, 20), the conductive structure (22) is fitted with shell surfaces of the shells (10, 20), one end of the conductive structure (22) is located inside an inner cavity of the module and is electrically connected to the elastic piece (40), the other end of the conductive structure (22) is located outside the inner cavity of the module and is electrically connected to a terminal circuit, and the conductive structure (22) is made of a metal material. The speaker module has advantages such as high stability of a conductive path, a simple structure, a simple and practicable assembling process, and solves technical problems in the prior art that the conductive path of the loudspeaker module is unstable, and the assembling process is complex.
Method for making thermoacoustic device array
A method for making a thermoacoustic device array includes the following step. A substrate having a surface is provided. The surface defines a grid having a number of cells. A number of recesses are defined on each of the cells. The recesses are parallel with and spaced from each other. A first electrode and a second electrode are formed on each of the cells. The first electrode is spaced from the second electrode, and one of the recesses is located between the first electrode and the second electrode. A sound wave generator is applied on the substrate and electrically connected to the first electrode and the second electrode. The sound wave generator is suspended over the recesses. The sound wave generator is separated according to the cells.
Measurement apparatus for testing and calibrating bone-conduction vibrators
A skull simulator tests and calibrates bone-conduction vibrators under realistic operating conditions. In known skull simulators, the front wall of the casing—and/or exposed parts of the suspension—have one or more planar surfaces on the front, and these planar surfaces are thus oriented towards the bone-conduction vibrator when it is mounted on the skull simulator. Such planar surfaces may reflect airborne sound from the vibrator housing or may emit sounds themselves when vibrating, and the reflected or emitted sound contributes to resonances are not present when the bone-conduction vibrator is mounted on a human head. In the current design all exposed parts on the front located outside a coupling surface for connecting the bone-conduction vibrator do not have planar surfaces perpendicular to the main oscillation axis or that otherwise, such planar surfaces comprising an acoustic foam having an acoustic dampening effect on sound waves impinging thereon.
Hearing aid container
A container for storage of hearing aids. The container has storage tubes, one for each hearing aid of a pair of hearing aids, and a center piece to which the storage tube attach. Attachment of the storage tubes can be by threaded engagement. The container has a desiccant pack for drying the hear aids, an o-ring closure for waterproofness, and a padded inner wall for protection of hearings aids.
Laser-based device utilizing multiple laser beams
A laser-based device or sensor includes: a first laser transmitter having a first self-mix carrier frequency; a second laser transmitter having a second, different, self-mix carrier frequency; a first monitor photodiode to receive a first optical signal from the first laser transmitter, and to output a first electric signal; a second monitor photodiode to receive a first optical signal from the second laser transmitter, and to output a second electric signal; an electric connection to connect together the first electric signal and the second electric signal, forming a combined electric signal; a single laser receiver to receive the combined electric signal and to generate from it a spectrum that corresponds to both (i) optical feedback of the first laser transmitter, and (ii) optical feedback of the second laser transmitter. Alternatively, a single monitor photodiode is used, receiving optical signals from multiple laser transmitters, and outputting a single electric signal to a single laser receiver.
Method for removing electric crosstalk
A method of removing an electric crosstalk contribution is disclosed. This crosstalk exists in a monitoring signal from a monitored electro-mechanical transducer in a device comprising a plurality of electro-mechanical transducers which are driven by actuation signals so as to produce acoustic waves in an acoustic frequency range. The method comprises the steps of: (a) applying an actuation signal to at least one of the transducers other than the monitored transducer; (b) detecting the monitoring signal in a high frequency range outside of the acoustic frequency range; (c) deriving, from the detected monitoring signal, a number of parameters that characterize the electric crosstalk; and (d) using said parameters to calculate the electric crosstalk contribution in the acoustic frequency range.
Disclosed is a loudspeaker module, which comprises a loudspeaker unit and a peripheral frame comprising an upper housing and a lower housing; a front acoustic cavity and a rear acoustic cavity are respectively defined as a space between the loudspeaker unit and the upper housing, and a space between the loudspeaker unit and the lower housing; a sound hole in communication with the front acoustic cavity is provided on peripheral frame, and an inverted tube is provided in peripheral frame. The loudspeaker module of the present invention is provided with inverted tube in communication with rear acoustic cavity, so that low-frequency acoustic effect of products can be enhanced, and heat dissipation of rear acoustic cavity and balance of atmospheric pressures can be achieved; inverted tube and loudspeaker unit share front acoustic cavity and sound hole, which is beneficial to increasing size of loudspeaker unit and improving acoustic performance of products.
Cabled device storage organizer
A cabled device storage organizer that addresses the common problem of organizing and storing personal cabled items, such as an audio headset, and prevents entanglement of the cables. In one embodiment, an audio headset storage organizer includes a main body having an interior cavity extending the length of the main body, the interior cavity dimensioned to receive a cable of a audio headset and two apertures formed on an exterior of the main body, each of the two apertures dimensioned to receive one of two audio earbuds attached to the cable of the audio headset.
Circumaural to supra-aural convertible headphone earcups
A convertible earcup for a headphone. The earcup includes an earcup frame, a driver positioned within the earcup frame and an earpad coupled to the earcup frame. The earpad is operable to be converted between a first configuration in which the earpad comprises a first diameter and a second configuration in which the earpad comprises a second, different diameter. A convertible headphone system including a set of earcups. Each earcup within the set of earcups includes a speaker unit and an earpad, and the earpad is convertible between a first diameter and a second diameter.
Harmonica microphone with improved control of audio feedback
A hands-free harmonica microphone for controlling undesired audio feedback, the microphone comprising: a reflective curved microphone chamber, a harmonica mount, a transducer, associated electronics and a neck brace attachment apparatus for connecting the microphone to commercially available harmonica holders (neck braces). In one embodiment, the harmonica mount is detachably coupled (magnetically or otherwise) to the microphone chamber. In another embodiment, the harmonica mount is integrated to the microphone chamber so that is also possible to mount the harmonica directly onto the microphone chamber.
Integrated sound system
A vehicle seating assembly comprises a seat having a lower seat and a seatback extending upwardly from the lower seat. The seatback comprises a forward facing surface, a rearward facing surface, a headrest mounted on an upper portion of the seatback and received within a headrest cup disposed on the forward facing surface of the seatback, a speaker assembly mounted in the headrest cup, and a resonance cavity formed proximate the headrest cup within which the speaker assembly is received.
Network employing multi-endpoint optical transceivers
A communication network that employs a plurality of multi-endpoint (MEP) optical transceivers in a leaf (or functionally similar) layer thereof. The use of MEP optical transceivers enables the communication network to support a pair of parallel paths for any source/destination pair of network nodes. In an example configuration, data packets that flow through one of the parallel paths go from the source node to the destination node via an electronic packet switch in the network's spine layer. Data packets that flow through another one of the parallel paths go from the source node to the destination node via an optical cross-connect switch. In operation, a network controller may dynamically select which one of the parallel paths to enable for each particular source/destination pair of network nodes, with the selection being made, e.g., based on the data volume to be transmitted between the two nodes.
Online forum for video distribution
Systems and methods for an online forum for video distribution are provided. A video file having a first format is received from a first client. The received video file is converted from the first format to a second format and is stored on a server, where the converted video file is accessible to a second client.
Recording option for advertised programs
Aspects of the subject disclosure may include, for example, a media processor displaying an advertisement regarding a future media presentation and determining an identifier and a communication capability of a mobile device associated with a subscriber associated with a remote second media processor. The media processor establishes communication with the mobile device in accordance with the communication capability, receives a first signal from the mobile device indicating that recording of an advertised future media presentation is desired, and displays a first menu in response to the first signal, where the first menu comprises an identifier of the future media presentation and identifiers of additional future media presentations advertised previously. The media processor also receives a second signal from the mobile device indicating selection from the first menu of a future presentation to be recorded, and transmits an instruction via the network to record the selected presentation. Other embodiments are disclosed.
Method and system for a media processor
A system that incorporates teachings of the present disclosure may include, for example, a presentation device having a controller that performs operations including enabling a supply of power to a portable battery operated device from a presentation port where the presentation port is a high definition multimedia interface port by trickle charging a rechargeable battery of the portable battery operated device through the presentation port, and receiving from the portable battery operated device an audio-visual signal for presentation at the presentation device through the presentation port. Other embodiments are disclosed.
System and method for dynamic control of downloading multiple videos
A system for adaptive control of the download of multiple videos includes at least one electronic device, a client coupled to the at least one electronic device, and a displaying device coupled to the client. The electronic device includes a video content divided into a plurality of video chunks. The client downloads each video chunk according to a bandwidth change trend and a displaying of an aspect ratio that is displayed on the displaying device and adjusts instant bandwidth change trend in downloading each video chunk. A method for such adaptive downloading control is also provided.
System and method for operating electronic device supporting enhanced data processing, apparatus and terminal supporting the same
A system for operating an electronic device supporting enhanced data processing is provided. The system includes a plurality of electronic devices supporting playback of content; and a managing device delivering content whose data is processed by a certain electronic device among the plurality of electronic devices to a preset electronic device when playback of the content in the certain electronic device is requested.
Single file PVR per service ID
Systems and methods for recording multiple broadcast television programs to a single file may include receiving user selection for recording a first media content and a second media content, determining the first media content and the second media content are provided on a single television service, and tuning to the television service to receive the first media content via a tuner of the television receiver. The systems and methods may include recording the first media content as a first permanent recording to a master file, receiving the second media content via the tuner of the television receiver, and recording the second media content as a second permanent recording to the master file.
Predictive server-side rendering of scenes
A server device and method are provided for use in predictive server-side rendering of scenes based on client-side user input. The server device may include a processor and a storage device holding instructions for an application program executable by the processor to receive, at the application program, a current navigation input in a stream of navigation inputs from a client device over a network, calculate a predicted future navigation input based on the current navigation input and a current application state of the application program, render a future scene based on the predicted future navigation input to a rendering surface, and send the rendering surface to the client device over the network.
Authorization method and system for smart TV and smart TV applying the same
An authorization method for a smart TV is provided. When an application is to be activated, it is determined whether machine authorization information is stored. When the machine authorization information is stored, a client certificate corresponding to the application is searched for. When the client certificate is found, it means the application is authorized. The application authorized by a server can then be activated.
Apparatus for transmitting media data via streaming service, apparatus for receiving media data via streaming service, method for transmitting media data via streaming service and method for receiving media data via streaming service
An apparatus for transmitting broadcast signals, an apparatus for receiving broadcast signals, a method for transmitting broadcast signals, and a method for receiving broadcast signals are disclosed. A method for transmitting a broadcast signal includes: dividing the media data into a plurality of media data fractions; generating file formats including each of the media data fractions, wherein the generated file formats include a first file format and second file formats, wherein the first file format includes metadata of the entire media data for processing the media data fractions in the second file formats, wherein each of the second file formats include metadata of the media data fractions in the each of the second file formats; and transmitting the generated first and second file formats.
Coefficient scanning in video coding
In an example, aspects of this disclosure relate to a method for decoding transform coefficients in a video decoding process that includes decoding a one-dimensional array of transform coefficients, and performing a scan on the one-dimensional array of transform coefficients according to a sub-block scan order and a coefficient scan order to produce a block of transform coefficients, where the sub-block scan order comprises an order in which each sub-block of a plurality of sub-blocks within the block is scanned, and where the coefficient scan order comprises an order in which the transform coefficients corresponding to each sub-block of the plurality of sub-blocks are scanned.
Value ranges for syntax elements in video coding
Systems and methods for coding video data are disclosed. The method can include determining a reference picture set (RPS) for a current picture based on one or more reference pictures. The method can also include determining a picture order count (POC) value of each reference picture of the RPS and identifying at least one of a number of long-term reference pictures and a number of short-term reference pictures within the RPS. The method can also include applying constraints to the number of long-term pictures and the number of short-term pictures in the RPS, the constraints being based on the POC value and a maximum decoded picture buffer size minus one, if a video sequence parameter (VPS) extension is in use. The method can include generating at least one syntax element identifying the RPS based on the constraints and encoding the current picture based on the at least one syntax element.
Method, device and system for producing a merged digital video sequence
A video processing device for producing a frame of a merged digital video sequence. A memory storing a first and a second digital video sequence depicting the same scene. The first digital video sequence has a higher pixel density than the second digital video sequence. A scaler generating an up-scaled version having the same pixel density as the first video sequence. A decoder decoding a frame of the first digital video sequence and a skip block identifying a position for a skip block and a non-skip block in the frame of the first digital video sequence. A block extractor extracting a block of pixels from the frame of the second digital video sequence based on the skip block and a block of pixels from the frame of the first digital video sequence based on the non-skip block. A merging unit merging both extracted blocks to produce the merged video sequence.
Intra refresh method for video encoding and a video encoder for performing the same
An intra refresh method is provided. The intra refresh method includes dividing a first frame into regions, counting a number of intra macroblocks included in each of the regions, calculating weight values of the regions, configuring a macroblock included in a second region of a second frame as an intra macroblock, based on the number of the first region. The second region corresponds to the first region.
Optimizing image compression
The system may capture an image comprising an original image size. The system may further determine an optimal size for the image based on a connection bandwidth and/or connection latency. The system may also compress the image to reduce an image size locally until the image size is less than or equal to the optimal size, before transmitting the image with the optimal size to the receiver while controlling latency in image transmission.
Digital television system
A digital television system performing modulation/demodulation by VSB (vestigial side band) is provided. The invention includes a VSB transmitter including an additional error correction encoder designed such that a signal mapping of a TCM encoder is considered, a multiplexer (MUX), a TCM encoder operating in correspondence with state transition processes of the additional error correction encoder, and a signal transmission part including an RF converter. The invention further includes a VSB receiver including a signal receiver part receiving a signal transmitted from the transmitter, a TCM decoder, a signal processing part including a derandomizer, and an additional error correction decoder part.
Method and an apparatus for encoding/decoding an image
The present invention discloses an intra prediction method for predicting pixel values within a prediction target block on the basis of a plurality of peripheral pixels adjacent to the prediction target block. The intra prediction method according to the present invention includes the steps of: receiving and decoding encoded image information; determining a target boundary by determining a plurality of boundary pixels representing the target boundary within the prediction target block on the basis of the decoded image information; determining a plurality of prediction target regions partitioned on the basis of the target boundary within the prediction target block; and performing a prediction for each of the plurality of prediction target regions on the basis of peripheral pixels differing from each other selected from among the plurality of the peripheral pixels.
Video quality objective assessment method based on spatiotemporal domain structure
A video quality objective assessment method based on a spatiotemporal domain structure firstly combines a spatiotemporal domain gradient magnitude and color information for calculating a spatiotemporal domain local similarity, and then uses variance fusion for spatial domain fusion. The spatiotemporal domain local similarity is fused into frame-level objective quality value, and then a temporal domain fusion model is established by simulating three important global temporal effects, which are a smoothing effect, an asymmetric track effects and a recency effect, of a human visual system. Finally, the objective quality values of the distorted video sequence are obtained. By modeling the human visual temporal domain effect, the temporal domain weighting method of the present invention is able to accurately and efficiently evaluate the objective quality of the distorted video.
Three-dimensional image display device and method of displaying three dimensional image
A three-dimensional image display device and a method for displaying a three-dimensional image, and particularly relates to a three-dimensional image display device improving movement degradation and a method for displaying a three-dimensional image. A three-dimensional image display device includes: a display panel; a movement determining unit determining whether an object of a 3D image moved in a direction perpendicular to a surface of the display panel based on image information; a hole-filling unit filling a hole generated according to the movement of the object with an edge region of the object to compensate a movement degradation when it is determined that the object moved in the direction perpendicular to the surface of the display panel; and a 3D input image signal generator generating a 3D input image signal based on the image information compensated with the movement degradation.
Holographic display method and apparatus using optical fiber array backlight for portable device
The present invention discloses a holographic display apparatus including a light irradiating unit configured to irradiate light using an optical fiber array backlight, a spatial light modulator (SLM) configured to perform modulating the irradiated light, a lens configured to irradiate hologram images based on the modulated light, a pupil tracking unit configured to acquire location of an observer's pupil by pupil tracking, and a hologram generating unit configured to generate parallax hologram images that correspond to the location of pupil.
Endoscopic system to display three-dimensional picture
A picture switch is performed to select a right picture and a left picture, a right picture and a right picture, or a left picture and a left picture without changing the kind and format of a video signal before and after a switch of a 2D picture and a 3D picture of an endoscopic system, and a picture shift is performed to horizontally shift the right picture and the left picture, and the pictures are then output to a monitor.
High throughput and low cost height triangulation system and method
A triangulation system comprising an area camera, a communication interface, a first image processing module, a second image processing module; wherein the area camera is arranged to obtain, at an acquisition rate, a stream of images of illuminated regions of an object; wherein the area camera is prevented from performing height calculations; wherein the communication interface is arranged to convey, in real time thereby in correspondence to the acquisition rate, the stream of images from the area camera to the first image processing module; wherein the first image processing module is arranged to process, in real time, the stream of images to provide first compressed information; wherein the second image processing module is arranged to process, at a non-real time image processing rate, the first compressed information to provide height information indicative of heights of at least the illuminated regions of the object.
Image processing apparatus, image pickup apparatus and image processing program for correcting color blur
The image processing apparatus includes a determining part configured to determine, from a difference between information on color of a first pixel in a first image and information on color of a second pixel corresponding to the first pixel in a second image, whether or not the first image includes color blur due to defocus, the first and second images being generated by an image-pickup system and whose focus states are mutually different. The apparatus further includes a correcting part configured to perform on the first image a correction process that corrects the color blur determined by the determining part.
Artifact reduction method and apparatus and image processing method and apparatus
Artifact reduction method and apparatus, and image processing method and apparatus are provided. The artifact reduction apparatus includes a scaling-down unit, a buffer unit, an artifact detection unit, a scaling-up unit and a filter unit. The scaling-down unit scales down a resolution of a current original image frame to obtain a current low-resolution image frame. The artifact detection unit performs an artifact detection to the current low-resolution image frame to obtain low-resolution weights in accordance with a relation of the current low-resolution image frame and a previous low-resolution image frame provided by the buffer unit. The scaling-up unit scales up a number of the low-resolution weights to obtain a high-resolution weights. By using the high-resolution weights, the filter unit performs an image processing procedure to the current original image frame for reducing artifact of the current original image frame and obtaining an adjusted image frame.
Multi-projection system and data processing apparatus
A multi-projection system configured to display output frames as a single screen by display frames displayed by display devices, respectively, the system includes a screen position setting unit that sets output frame position data that is data of position of each of the output frames in the single screen when synthesizing the output frames to the single screen, and display frame position data that is data of position of each of the display frames in the single screen; an output frame obtaining unit that obtains output frames; an output frame synthesizing unit that synthesizes the output frames based on the output frame position data; a display frame generating unit that generates the display frame for each of the display devices using a part of the synthesized image based on the display frame position data; and display units that display the generated display frames, respectively.
Compact optical projection apparatus
A compact optical projection apparatus. An apparatus for light projection includes at least one illumination device; a cover prism including a curved surface positioned to receive illumination light rays and a total internal reflection surface positioned to internally reflect the light rays towards an asymmetric reflector surface positioned opposite the total internal reflection surface, the asymmetric reflector surface configured to reflect the received light rays out of the cover prism at an emitter side of the cover prism; a spatial light modulating the illumination light rays with image data to form image light rays; a reverse total internal reflection (RTIR) prism positioned between the spatial light modulator and the emitter side of the cover prism and further comprising a total internal reflection surface configured to totally internally reflect the image light rays out of the RTIR prism into a light projection device. Additional apparatus are disclosed.
Handheld digital drawing and projection device
A handheld digital drawing and projection device is provided. The device includes a screen for receiving a user input. In embodiments, a stylus tethered to the device provides the user input at the screen. The device further includes a determining component for determining an output corresponding to the received user input. A projector for projecting the determined output onto an external projection surface is also included. In some embodiments, the projector further projects a display environment, which includes one or more projected elements.
Camera for viewing and sensing the health of a user sitting on a toilet
A cameras is connected to a device to move the camera over the user's body, posterior, and back, stationary cameras can also be used. The camera's view of the user, is show on a display, and allows a user to view difficult to view areas of their body, while they are sitting on a toilet. Some viewed areas might be neglected by being difficult to view. Being able to view the body areas lets the user, and or a computer, visually diagnosis the areas, for possible health concerns. Health sensors can also be used to perform health tests on the user's body. Health tests can include skin cancer, and blood pressure, etc. Heath test data is displayed, and can be sent to health providers, over the internet, for diagnosis. By practicing preventative health, problems can be detected early, allowing for early medical attention and management of possible health problems.
Simultaneous recording of a live event and third party information
Embodiments of the present invention address deficiencies of the art in respect to live event recording and provide a novel and non-obvious method, system and computer program product for recording a live event. In this regard, in one embodiment of the invention, a live event recording method can be provided. The live event recording method can include wirelessly acquiring third party information regarding a live performance from a third party information source over a computer communications network, and simultaneously recording both the live performance and also the third party information onto a single recordable medium.
System and method for distributing digital video streams from remote video surveillance cameras to display devices
A video distribution server distributes digital video streams captured by remote video surveillance cameras to appropriate display devices for rendering thereon. The video distribution server selects one or more display devices to receive each digital video stream and instructs the selected display devices to establish respective media sessions with the appropriate remote surveillance cameras to enable the digital video streams to be streamed to the selected display devices via respective point-to-point connections.
Display room mirror system
Provided is a display room mirror system, including a display module that outputs images captured by a first camera and a second camera, so that the driver can secure his or her field of vision for the side rear as well as the rear of a vehicle using only one room mirror disposed in an inner part of the vehicle without confirming the side mirror, thereby effectively reducing moving lines in the driver's field of vision.
Method and system for communicating between a local collection facility and a remote facility
A system and method for operating the same includes an IP network, a remote facility and a local collection facility in communication with the local collection facility through the IP network. The local collection facility receives local channel signals at a local collection facility and encodes the local channel signals into respective IP signals. The local collection facility includes a router routing the respective IP signals through an IP network to a remote facility.
Method, device, and display device for switching video source
Provided are a method, device, and a display device for switching video source. The method comprises: detecting and finding at least one currently available video source; displaying the video source in a video source list in the form of thumbnails, obtaining a video source selection event, switching to the selected video source from the video source list as the current video source, and displaying said video source. The present invention can at least solve the problems of low switching efficiency and abnormal switching.
Imaging through a display screen
The described implementations relate to enhancement images, such as in videoconferencing scenarios. One system includes a poriferous display screen having generally opposing front and back surfaces. This system also includes a camera positioned proximate to the back surface to capture an image through the poriferous display screen.
Method and apparatus for processing a video signal for display
A method and apparatus for processing a video signal is provided. The method and apparatus comprises a consolidator configured to consolidate a plurality of unutilized regions based on a determination of a difference between an aspect ratio of a display being generated and an aspect ratio of first content to form a consolidated display region. The method and apparatus consolidates the plurality of unutilized regions to generate an output video signal having the consolidated region and a first content region associated with the first content. The plurality of unutilized regions is consolidated by at least partially moving the first content region towards at least one edge of the output video signal. The plurality of unutilized regions is consolidated by scaling down size of the first content region associated with the first content.
Apparatus and method for audio based video synchronization
Multiple video recordings may be synchronized using audio features of the recordings. A synchronization process may compare energy tracks of each recording within a multi-resolution framework to correlate audio features of one recording to another.
Image processing system and image capturing apparatus
An image processing system includes an image capturing apparatus and an image processing apparatus to perform development processing of RAW images captured by the image capturing apparatus. The image capturing apparatus includes a first development unit configured to develop a piece of RAW image data, a recording unit configured to record the piece of first developed image data, and an image display unit. The image processing apparatus includes a second development unit configured to develop the piece of RAW image data received from the image capturing apparatus and an access information transmitting unit configured to transmit a piece of access information for the obtained piece of second developed image data. The image capturing apparatus controls display of an image to be played and displayed on the display unit based on the piece of access information.
Method and device for inserting a graphical overlay in a video stream
The present invention relates generally to video communication systems, and more specifically to a method and device for determining a degree of animation of a graphical overlay for a video stream based on a degree of movement in the video stream.
Multi-tiered tamper-resistant assembly system and method
A multi-tiered approach to combating reverse engineering of electronics is disclosed herein. The encapsulant utilized with the optical sensor may be selected based on being substantially being opaque to X-ray inspection. In this way, visible public inspection to gain competitive intelligence may be reduced and operation of the electronics may remain unaffected. Additionally, a thin filament of wire embedded just below the surface of the encapsulant could be used as an electronic tripwire in response to being severed and/or dissolved by the reverse engineering strong solvents and acids.
Image pickup apparatus, image pickup system, and method of driving image pickup apparatus
In an image pickup apparatus including first circuits, second circuits, and conversion units, an operation period of the second circuit is shorter than an operation period of the first circuit, and a number of the first circuit arranged in each unit cell is greater than a number of the second circuit arranged in each unit cell.
In-pixel amplification device and method
A pixel for converting incident subatomic particles into an output voltage signal is disclosed. In one aspect, the pixel includes a photo-detector adapted to receive incident subatomic particles and generate an input voltage signal corresponding to an intensity of the received particles. The pixel also includes a passive amplifier adapted to passively amplify the input voltage signal to generate an output voltage signal. The passive amplification reduces the noise of the output voltage signal, and may have a higher quantum efficiency than typical in-pixel amplification devices and methods.
Pixel array with shared pixels in a single column and associated devices, systems, and methods
Pixel array with shared pixels in a single column and associated devices, systems, and methods are disclosed herein. In one embodiment, a pixel array includes a floating diffusion region, a source a source follower transistor having a gate coupled to the floating diffusion region, a plurality of first pixels associated with a first color, and a plurality of second pixels associated with a second color different than the first color and arranged in a single column with the first pixels. The first and second pixels are configured to transfer charge to the floating diffusion region.
Line buffer unit for image processor
An apparatus is described that include a line buffer unit composed of a plurality of a line buffer interface units. Each line buffer interface unit is to handle one or more requests by a respective producer to store a respective line group in a memory and handle one or more requests by a respective consumer to fetch and provide the respective line group from memory. The line buffer unit has programmable storage space whose information establishes line group size so that different line group sizes for different image sizes are storable in memory.
Mobile gas and chemical imaging camera
In one embodiment, an infrared (IR) imaging system for determining a concentration of a target species in an object is disclosed. The imaging system can include an optical system including an optical focal plane array (FPA) unit. The optical system can have components defining at least two optical channels thereof, said at least two optical channels being spatially and spectrally different from one another. Each of the at least two optical channels can be positioned to transfer IR radiation incident on the optical system towards the optical FPA. The system can include a processing unit containing a processor that can be configured to acquire multispectral optical data representing said target species from the IR radiation received at the optical FPA. Said optical system and said processing unit can be contained together in a data acquisition and processing module configured to be worn or carried by a person.
Mobile terminal and control method thereof
A mobile terminal, including a camera configured to obtain an image; a display configured to display map information; a movement sensor configured to sense a movement of the mobile terminal; and a controller configured to display a preview image received through operation of the camera to at least part of a region where the map information is displayed, when the movement of the mobile terminal corresponds to a preset type of movement while the map information is displayed, and to display at least one graphic object related to the map information as being overlapped on the preview image, wherein the preview image includes at least one image corresponding to at least one subject, and the at least one graphic object related to the map information is displayed to the at least one image or around the at least one image. When the at least one graphic object related to the map information is selected, the controller is further configured to capture an image corresponding to the selected graphic object, restrict output of the preview image based on selection of the graphic object, and display the captured image to a point on the map information where a subject corresponding to the captured image is positioned. Further, the preset type of movement is a speed change of the mobile terminal.
Digital device and method of controlling therefor
A digital device configured to attach a multimedia to a message and a method of controlling therefore is disclosed. The digital device according to the present specification can attach an image using a wearable device based on a user input inputted on the digital device or the wearable device in the middle of writing a message.
Dynamic camera mode switching
A method for automatic image capture control and digital imaging is described. An image buffer is initialized to store a digital image produced by an image sensor, through allocation of a region in memory for the buffer that is large enough to store a full resolution frame from the image sensor. While non-binning streaming frames, from the sensor and in the buffer, are being displayed in preview, the sensor is reconfigured into binning mode, and then binned streaming frames are processed in the buffer, but without allocating a smaller region in memory for the buffer. Other embodiments are also described and claimed.
Image capturing device and activation method therefor
An image capturing device includes a first controller operable to control image capturing; an operation section including a switch; a detector operable to detect a change to an image capturing mode and to send a signal representing the change; a second controller operable to monitor and process the sent signal, the second controller having a power consumption less than that of the first controller; and a power supply operable to supply power to the first controller, the second controller, and a functional section of the device. When the second controller receives the signal sent from the detecting section in a power saving state in which power is supplied from the power supply to the second controller, the power saving state is changed to a power supplying state capable of image capturing by supplying power from the power supply to portions of the device including the first controller.
Panoramic-imaging digital camera, and panoramic imaging system
A panoramic photography digital camera for easily photographing a plurality of images having different orientations without any vignetting in order to generate a panoramic image and to provide a photography system using the panoramic photography digital camera are provided. A panoramic photography digital camera includes: a wide-angle lens having an angle of view at least larger than 180 degrees; a camera body disposed closer to a rear side than the wide-angle lens and positioned at a position that does not fall within the angle of view; a digital imaging element included in the camera body; an image processor that processes image data obtained by the digital imaging element and outputs or stores the image data in a predetermined image format; a level for checking the level of the camera body; and a first connector for connection to a legged platform used when mounting the camera during photographing. A nodal point of the wide-angle lens is positioned on the center of rotation during photographing of panoramic images, and the level provided on an upper surface of the camera body and the first connector provided on a lower surface of the camera body are disposed so as to be positioned on the same line that passes through the center of rotation when seen from above.
Imaging controller and imaging control method and program
An imaging controller includes an index calculator to calculate an index value for each of divided areas of images captured by a plurality of imaging units, the index value for evaluating a photographic state of each of the divided areas, an evaluation value calculator to evaluate the images and an overlapping area between the images on the basis of the index value of each divided area calculated by the index calculator and calculate an overall evaluation value, and a condition determiner to determine an imaging condition for each of the imaging units on the basis of the overall evaluation value calculated by the evaluation value calculator.
Communication terminal, display method, and computer program product
A communication terminal displays thumbnails for predetermined-region images in a panoramic image and accepts a selection of a predetermined thumbnail so as to display the predetermined-region image corresponding to the accepted thumbnail. This brings about an effect that a user can easily find a desired panoramic image or a desired predetermined-region image in the panoramic image.
Image capturing apparatus
An image capturing apparatus including an image capturing unit that captures an image, a focus control unit that controls a focus of the image capturing unit, an object selection reception unit that receives a selection operation of an object, and an image processing unit that performs image processing of an image that is captured by the image capturing unit, in which the image capturing unit captures plural images in which the focus is changed by the focus control unit, at least one of the plural images is captured based on a focal position of a selected object that is received by the object selection reception unit, and the image processing unit generates an image in which a depth of field is expanded compared to the one captured image from the plural images.
Wide-angle lens calibration system and method thereof
A wide-angle lens calibration system is provided, which may include a rotation unit, an image input unit, and a processing unit. A lens to be calibrated may be disposed on the rotation unit; the rotation direction of the rotation unit may be parallel to the horizontal direction; the optical axis center of the lens may be aligned with a reference object. The image input unit may receive images from the lens. The processing unit may control the rotation unit to rotate and analysis the images received from the lens. The processing unit may execute a distortion calibration process, wherein the processing unit may continuously rotate the rotation unit by a predetermined angle and then record the distance between the position of the reference object in the image and the optical axis center and a total rotation angle after each rotation so as to establish a distortion calibration model.
Photographing apparatus and control method for photographing apparatus
A photographing apparatus comprises a focus adjustment lens capable of movement in an optical axis direction, an operation member for designating a movement amount on movement direction of the focus adjustment lens as a result of being operated, an operation time detector for detecting operation time based on operation amount of the operating member, a target position calculation section for calculating target position that the focus adjustment lens is moved to, based on operation amount of the operating member, and a controller for changing the target position based on the operation time, and repeatedly executing control to move the focus adjustment lens to the target position, wherein the controller sets a movement velocity of the focus adjustment lens, at an estimated time for recommencing movement of the focus adjustment lens, so that the focus adjustment lens moves to the target position.
Barrier operator control of a camera
A barrier operator that controls operation of a camera includes a controller, a communication module, and control circuitry. The controller moves a barrier between open and closed positions. The communication module receives open/close commands from a peripheral device. The control circuitry is in communication with the controller, the communication module, and a camera. The control circuitry of the barrier operator automatically activates the camera to capture at least one visual image in response to receiving an open/close command and/or a determination to move the barrier.
Image sensing device, image reading device, image forming apparatus and image sensing method
An image sensing device includes a plurality of photoelectric conversion elements arranged in one direction for each color of received light, and an analog-digital (AD) convertor that performs analog-digital conversion for each pixel group configured by a plurality of photoelectric conversion elements selected from the photoelectric conversion elements. The AD converter is disposed in a position adjacent to each of the photoelectric conversion elements configuring the pixel group.
Method and system for authenticating users in an image processing apparatus and/or image processing system
In a multifunction peripheral (MFP) including an operation key for setting a folder of an authenticated user as an address of image data, setting received authentication information or setting pre-registered authentication information that has been associated with a user is selected, and when the operation key is operated, the authentication information is set according to the selected content. The image data is then processed using the set authentication information.
Apparatus equipped with fax function, control method thereof, and storage medium
An apparatus equipped with a fax function performs first and second settings on a user interface, wherein the first setting sets one or more specific fax numbers so that a printout of received fax data relating to the set one or more specific fax numbers is not produced, and wherein the second setting is a setting for a printout of received fax data, that relate to a fax number that does not exist in an address book, not to be produced.
Image sensor module
An image sensor module includes an elongated light emitting unit, a photodetector, a lens unit, a substrate with the photodetector mounted on. The substrate is spaced apart from the lens unit in a thickness direction of the substrate. The image sensor module further includes a resin case provided with a light emitting unit chamber, a lens unit chamber and a substrate chamber. The lens unit chamber has a first bottom face extending in the first direction, and the substrate chamber has a second bottom face extending in the first direction and facing opposite to the first bottom face in the thickness direction of the substrate. The first or second bottom face is formed with at least one protrusion extending in the thickness direction of the substrate.
Image forming apparatus
An image forming apparatus recognizes a requesting user who has requested execution of a printing job stored in a memory portion, and in a case where a distance between a mobile terminal owned by the requesting user and the image forming apparatus has become not more than a first threshold value, the image forming apparatus performs control so that interrupt printing is performed in which the printing job of the requesting user is started, and so that another printing job is not resumed until a prescribed time length has elapsed after completion of the printing job of the requesting user.
Information processing system, information processing method and computer program product
An information processing system includes a device; and an information processing apparatus including a conversion unit configured to convert second data in a second format, different from a first format processable for the device, to generate first data in the first format; a first transmission unit configured to send the first data to the device; a reception unit configured to receive information indicating an operation to a screen, displayed on a display unit of the device based on the first data; and a second transmission unit configured to send to the device, an instruction to perform processing related to the operation indicated by the information, the processing being defined in the second data. The device includes an acquisition unit configured to acquire data that is an object to be processed in the processing performed in accordance with the instruction, via a network without passing through the information processing apparatus.
Online charging for proximity services
Systems and methods for performing online charging for proximity services. One embodiment is a proximity service element that controls proximity services for a mobile network. The proximity service element receives a service request from User Equipment (UE) for a proximity service, and collects online charging information related to the proximity service. The proximity service element formats the online charging information into an online charging request, and transmits the online charging request to an online charging system. The proximity service element receives an online charging response from the online charging system that includes a credit authorization result for the proximity service, and transmits a service response to the UE indicating the credit authorization result for the proximity service.
Method and system for routing and security for telephone calls over a packet-switched network
A server, upon receiving a request to complete a call over a packet-switched network, looks up an address on the packet-switched network on a local table. If the local table does not contain a matching address, the server asks a routing server to identify a receiving server address. The routing server identifies a suitable address and sends a message to the originating server containing the address. The routing server may consider such factors as the volume of calls currently being handled by various potential receiving servers in selecting a receiving server. The receiving server then receives, via the packet-switched network, a message requesting a telephone connection to a second telephone device. Before completing the connection to the second telephone device, information in the message representing the address of the device on the packet-switched network that originated the message is identified. The address information is compared to selected predetermined addresses for permitted origins of the message. The permitted origins may be other servers or clients of the receiving server. If the address in the message corresponds to a predetermined permitted address, the server will proceed with completion of the call. If the address in the message does not correspond to a predetermined permitted address, the server will refuse to complete the call.
System for automated call analysis using context specific lexicon
A system and method for automated call analysis using context specific lexicons. A system includes memory and a processor configured to executed instructions. The system includes a recording component, a lexicon component, an analysis component, and a display component. The lexicon component defines a plurality of context specific lexicons, with each context specific lexicon having elements associated with one of a plurality of unique conversation segments. The analysis component configured to identify elements of the context specific lexicons, and associate each identified element with a time location in a telephonic conversation. The display component configured to graphically present a multi-line graph such that the intersections of the lines indicate transitions between the unique conversation segments.
System and method of distributed maintenance of contact center state
A system and/or a method of distributed maintenance of contact center state including the state of contact center objects which may include directory numbers and agents. Device controllers and call controllers are used to monitor device and call information. Data aggregation nodes are connected to the device controllers and call controllers. The data aggregation nodes share directory number state information and agent state information via a publish-subscribe bus, and aggregate state information to form full state information.
Pre-authentication system and method for outgoing communication
An automated calling system authenticates and subsequently communicates via a telephone network with a person such as a current or prospective customer. The communication may be in regards to an account having an adverse account status (e.g. a payment delinquency, an overdrawn checking account, being over the credit limit on a credit card, excessive transactions on one account, suspicious or fraudulent transactions on an account, and so on).
Multiple device and multiple line connected home and home monitoring
Systems, devices, and techniques for multiple device and multiple line enabled computing devices and computing appliances are described herein. A device number can be assigned to a computing device and can be unique to the computing device. A plurality of alias numbers can be provided to the computing device and enabled for use by the computing device. Alias numbers can be enabled on multiple computing appliances, such that a user can transfer voice or video calls between devices using the alias numbers. Further, monitoring components in a home environment, for example, can be associated with one or more alias number so that security alerts can be provided to the various computing devices and computing appliances associated with the alias numbers.
Crosstalk estimation method, apparatus, and system
A crosstalk processing method, an apparatus, and a system comprise a transceiver of a line that generates, respectively according to pilot sequences allocated by a vectoring control entity, pilot training signals that are within different spectral ranges and that satisfy a preset relationship with a pilot training signal of another line such that a receiver of the line can determine sample errors respectively according to the different pilot training signals. A vectoring control entity then determines crosstalk channel coefficients from the other line into an inband spectrum and an out-of-band spectrum of the line, and performs precoding processing on a to-be-sent data signal of the line to eliminate impact of crosstalk from the other line to the inband and out-of-band spectrums of the line.
Leveraging mobile devices to enforce restricted area security
A technique to enforce a physical security constraint leverages a user's mobile device while at the same time enabling the user to continue use of the device for appropriate purposes within a restricted area. A user's access to a restricted area with his or her mobile device in effect is “conditioned” upon installation (on the device) of an endpoint agent that controls features of the mobile device based on one or more factors, such as the user's role, a current location of the user within the restricted area, and other criteria as defined in a security policy. Preferably, the agent is instantiated automatically when the user enters the restricted area, with the device then restored to its prior state when the user leaves the restricted area. The particular features of the mobile device that are controlled may be varied, even within particular zones of the restricted area itself.
Multifunction mobile devices and appliance control
A wireless communication and control system including a wireless device. There is a central server for storing communication protocols and control protocols and communicating the communication protocols and selectively communicating the control protocols between the wireless device and the central server. A communication protocol configures the system for communication and control protocols configure the system as one of a selection of intelligent appliance controllers. Alternately the control protocols configure the system as one of a selection of Internet terminals. The wireless device is any hand-held communication device, such as a hand-held computing device, wireless telephone, or cellular phone.
Method for handling an outgoing call connection in a telecommunication device
A method for handling an outgoing call connection in a telecommunication device, comprising the steps of: detecting (201) a request for establishing a communication connection to a called party via the communication device (100a); detecting (202) proximity of the communication device to an object; detecting (203) subsequent lack of proximity of the communication device to the object, while awaiting accepting of the communication connection by the called party; detecting (204) establishment of the communication connection; starting (205) a timer; detecting (206) a request for terminating the communication connection; if the timer indicates a time below a predefined threshold (207), inhibiting (208) the request for terminating the communication connection; and indicating (209), by an indicator of the telecommunication device (100a), that the communication connection is established.
Electronic device and control method
A mobile phone includes a communication module for establishing a master-slave relationship with another electronic device to perform communication. The mobile phone determines a carrying state and performs control related to the master-slave relationship of the communication module based on a determination result of the carrying state. By this configuration, the mobile phone can improve user's convenience with respect to the use modes of electronic devices between which the master-slave relationship is established. For example, when it is determined that the carrying state is a carried state, the mobile phone may make the communication module subordinate to the other electronic device.
The disclosure provides a terminal, including a flexible terminal body, a rigid bracket, a pull rod, and a terminal battery and main board adapted to a structure of the rigid bracket. The rigid bracket is fixed on the flexible terminal body, the rigid bracket includes a plurality of sub-brackets and rotating shafts, and the plurality of sub-brackets are lined up along the flexible terminal body; the terminal battery is arranged in cavities formed by two adjacent sub-brackets, and is penetrated by two rotating shafts on two sub-brackets respectively; the main board is arranged on an outer side of the rigid bracket; the plurality of sub-brackets and the terminal battery rotate around the corresponding rotating shafts; and two extending heads at tail ends of the pull rod are inserted into positioning holes of the corresponding sub-brackets for positioning after the flexible terminal body is curved to a preset curving position.
Method for improving accuracy in computation of one-way transfer time for network time synchronization
A method for improving accuracy in the computation of a one-way transfer time between two networked devices. In one aspect, variability in time transfer latency that is caused by cache loading, data structure setup time, and scheduling variability in software is reduced by initiating a first sequence of loading data structures into cache and priming scheduling, and then initiating a second sequence of calibrating the timing of a subsequent synchronization message so that the completion of the first sequence occurs just in time for the reception of the synchronization message. The method is applicable for any network time synchronization protocol, including Network Time Protocol (NTP) and Precision Time Protocol (PTP).
Making a flow ID for an exact-match flow table using a byte-wide multiplexer circuit
An exact-match flow table structure stores flow entries. Each flow entry includes a Flow Id and an action value. A flow entry is generated from an incoming packet. The flow table structure determines whether there is a stored flow entry, the Flow Id of which is an exact-match for generated Flow Id. In one novel aspect, a multiplexer circuit is used to generate Flow Ids. The multiplexer circuit includes a plurality of byte-wide multiplexer. Each respective one of the byte-wide multiplexers outputs a byte that is a corresponding respective byte of the Flow Id. The various inputs of the byte-wide multiplexers are coupled to receive various bytes of the incoming packet, various bytes of modified or compressed packet data, as well as bytes of metadata. By controlling select values supplied onto the select inputs of the multiplexer circuit, Flow Ids of different forms can be generated.
Systems and methods for improved communication efficiency in high efficiency wireless networks
Methods and apparatus for wireless communication in an IEEE 802.11 wireless communication system including legacy and high-efficiency wireless (HEW) devices are provided. In one aspect, a method for wireless communication in an IEEE 802.11 wireless communication system including legacy and high-efficiency wireless (HEW) devices includes determining a first time interval for communication according to a HEW protocol. The method further includes transmitting, according to a legacy protocol, a first communication at least partially protecting reception of communications during the first time interval. Another method includes receiving a first communication announcing a second communication. The method further includes determining a first time interval for communication according to a HEW protocol. The method further includes transmitting, according to a legacy protocol, the second communication for at least partially protecting reception of communications during the first time interval.
Machine-specific instruction set translation
Methods, systems, and computer program products are provided for machine-specific instruction set translation. One example method includes identifying computing devices, each device having a respective software component installed, the software component including a translator component for translating a program in a portable format to a machine-specific instruction set, and a sandbox component for executing programs translated to the machine-specific instruction set on the computing device using software-based fault isolation; identifying computing devices having a given hardware configuration; and transmitting another translator component and another sandbox component to each of the identified computing devices. Each of the identified computing devices having the given hardware configuration is configured to receive the components and to configure its software component to use the received components in lieu of the corresponding components.
Dynamic discovery and management of page fragments
Techniques to dynamically discover and manage page fragments, e.g., to provide a dynamic application user interface, are disclosed. In various embodiments, an indication to add a fragment dynamically to a current application page is received. The fragment to be added is determined, in response to the indication, and added dynamically to the current application page.
Secure boot download computations based on host transport conditions
Systems, methods and computer readable media for secure patch downloading from a host to a target, with improved security computation operations based on transport conditions. The method may include receiving a packet of the patch from the host; verifying that the packet is not a retransmission of a previously received packet; if the verification succeeds, performing a first type of security computation based on the packet; if the verification fails and the content of the packet differs from the content of the previously received packet, stopping further performance of the first type of security computation until a final packet of the patch is received; performing a second type of security computation based on one or more of the received packets; and determining a security status of the patch based on a comparison of the first type of security computation and the second type of security computation.
System and method for improving virtual media redirection speed in baseboard management controller (BMC)
Certain aspects of the disclosure relates to a system and method of performing virtual media redirection. The system includes a baseboard management controller (BMC) connected to a host computing device through a communication interface, and a client computing device communicatively connected to the BMC through a network. In operation, the BMC emulates a virtual media for a media device, and establishes a virtual media connection to the client computing device through the network. Then the BMC stores the data from the media device in a host cache at the BMC and in a client cache at the client computing device by sectors. When the BMC receives a request from the host computing device through the communication interface to retrieve sectors from the media device, the BMC redirects the sectors being requested to the host computing device depending on where the requested sectors are stored.
Network entity and method for managing Session Initiation Protocol communications towards a user entity in a communication network
A network entity for managing Session Initiation Protocol (SIP) communications towards a user entity in a communication network. The network entity has a receiver and a processor. The receiver is configured to receive a first SIP message. The processor is configured to generate a second SIP message in response to receiving the first SIP message, the second SIP message having user-specific data relating to the user entity.
Label for use in the internet of things
A device obtains a label from a particular device. The device identifies a first flag, a second flag, a third flag, and a fourth flag from the label. The device determines, based on the first flag, first information indicating a kind of communication used by the particular device. The device determines, based on the second flag, second information indicating a direction the particular device communicates data and/or indicating storage options. The device determines, based on the third flag, third information indicating at least one of service information for the particular device, an energy requirement for the particular device, or a redundancy mechanism for the particular device. The device determines, based on the fourth flag, fourth information indicating an administrative requirement for the particular device. The device manages the particular device or an environment based on at least one of the determined information.
Packet loss anticipation and preemptive retransmission for low latency media applications
In many low latency media applications it is important to transmit media data packets from a media source to one or more media destinations as promptly as possible, while also ensuring that all media data packets that may be lost due to transmission errors are retransmitted and received correctly at the media destination. This invention described a system to do this with a system and methods for anticipating media data packet loss and making preemptive media data packet retransmission requests by dynamically computing a metric and decision logic for retransmission request that includes a need based factor from the media consuming application.
Client and a server and methods thereof for data management relating to shared data storage
A distributed shared data storage such as the distributed shared memory exemplified with the DSM Master can seamlessly migrate (i.e. move) in the runtime between different nodes without affecting the user perceived performance according to embodiments of the present invention. This is achieved by using more than one replica simultaneously operating towards different master databases during the migration. That is, all distributed shared memory replicas can automatically and seamlessly be migrated to another master database, thus making the communication more flexible and efficient.
Virtual performance monitoring decoupled from hardware performance-monitoring units
The current document is directed to virtualized PMUs provided by virtualization layers. The currently disclosed virtualized PMUs are decoupled from the underlying PMU hardware features of processors on which the virtualization layer executes. The decoupling is achieved, in part, by time multiplexing the underlying hardware PMU registers to provide a greater number of virtualized PMU registers than the number of hardware-PMU registers provided by at least some of the underlying hardware PMUs. The decoupling is also achieved by providing for monitoring, by the virtualized PMU registers, of computed processor events and approximated processor events in addition to the processor events monitored by the underlying hardware PMUs. In addition, the virtualized PMU registers are implemented, in certain implementations, to support a variety of different monitoring modes, including monitoring of processor events that occur only during execution of the virtualization layer and monitoring of hardware-thread-specific processor events.
Information processing apparatus, system, information processing method, and non-transitory computer readable medium
An information processing apparatus includes the following. A first transmission unit transmits a first response containing an identification value of the information processing apparatus to a client apparatus in response to a login request. A second transmission unit transmits, to the client apparatus, a second response to instruct the client apparatus to perform redirection to one of uniform resource locators preregistered in a server apparatus as access right transfer destinations if an access right transfer is authorized. A third transmission unit reads out region information contained in an access request received from the client apparatus in response to the second response if a uniform resource locator contained in the received access request is not the one associated with the information processing apparatus and transmits a third response containing an instruction for redirection to a uniform resource locator corresponding to the read out region information to the client apparatus.
Systems and methods for optimizing web page load time
The technology disclosed relates to systems and methods for using deduplication when rendering complex web pages with multiple iFrames, to improve performance and reduce memory requirements. We refer to the technology disclosed as “server-side rework” of interface web pages with multiple iFrames by post processing. Custom interface web pages with multiple iFrames can use the disclosed server-side rework to post-process complex interface web pages for improved performance and reduced memory requirements.
Architecture, system and method for dynamically providing digital content via a reference image
Embodiments of associating a reference image with a URL/URI assigned or related to digital media content are disclosed and enabling a first user to view the associated content via a web browser and reference image reader software and a second user to modify the associated content via a web browser. Other embodiments may be described and claimed.
Methods for dynamically transmitting screen images to a remote device
A system and method are provided for conducting an electronic meeting by broadcasting a screen image to a third party computing device (desktop, laptop, tablet or smartphone) without requiring the attendee to download specialized software. The image is viewed through a standard web browser. In operation, a user is provided with a hosting account on a server, and a host computing device is loaded with a software application for communicating with the server. The user invites one or more remote viewers who connect to the server using the browser on their device. The hosting application captures image frames to be shared and divides them into subsections, transmitting to the server only those sections that have changed relative to the previously transmitted frame. The meeting attendee's browser retrieves tiles from the server as they change, and displays them for the attendee.
Mobile device for performing monitoring on cooperative situation, method of performing monitoring on cooperative situation using said mobile device, and system for performing monitoring on cooperative situation including said mobile device
A mobile apparatus includes a cooperator detector, a cooperation planner and a context processor. The cooperator detector selects a cooperating mobile apparatus among adjacent mobile apparatuses. The cooperation planner determines a cooperation plan for operating cooperative context monitoring with the cooperating mobile apparatus. The context processor operates the context monitoring based on the cooperation plan. Accordingly, the resource may be efficiently used and the range of the context monitoring may be enlarged.
Technique for providing services in a service provisioning network
The invention relates to techniques for providing services in a service provisioning network (100′), wherein a service-related message (118) is routed by a service routing node (104′) to a service hosting node (106′). A method embodiment of the invention comprises in the service routing node the steps of receiving, e.g. from the service hosting node, service availability information (124) indicating an availability of the service in the service hosting node; and establishing, based on the received service availability information, a service routing rule.
IMS over soft AP admission control and resource management
In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a first UE. The UE receives an IP packet including header information and data for a MBMS session. The first UE establishes a WWAN communication link with a base station through a WWAN RAT. The first UE provides an access point accessing the WWAN communication link to at least one second UE through a WLAN RAT. The first UE determines a channel condition of the WWAN communication link. The first UE manages at least one multimedia service between the base station and the at least one second UE based on the channel condition.
Distributed connection management
Persistent connections between multiple client devices and multiple back-end service components are managed using a consistent hashing-based approach to route distribution. A load balancer distributes the connections across multiple gateway servers. Each connection is associated with a device having an identifier, which can be hashed using a selected hashing algorithm. The gateway servers are assigned values over a hashing range. When a connection is established for a device, the hash value for that device can be mapped to a corresponding gateway server. The primary gateway server establishing the connection can store information (e.g., the port or interface) for the connection, and can send identifying information to the corresponding gateway server determined by the hash value. When a backend service wants to locate the connection, the service hashes the device identifier to determine the corresponding gateway server, which returns the identity of the primary gateway server hosting the connection.
Peer-to-peer internet protocol telephone system with system-wide configuration data
Various embodiments of the invention provide a Peer-to-Peer (P2P, Internet Protocol (IP) telephone system. The telephone system includes a plurality of terminals coupled together via an IP network. The terminals cooperate with one another to provide telephony features without a dedicated central controller such as a PBX and/or a KSU controller. The terminals further cooperate with one another to maintain system-wide configuration data for the telephone system.
System and method for context-aware participant management
System and method to manage an electronic conference hosted by a conference server coupled to a processor and a memory, the method including: receiving, by a communication interface of the conference server, a request from a user to participate in an electronic conference; determining, by the processor, resources needed by the user and resources needed by the electronic conference; determining resource contentions among resources needed by the user and resources needed by the electronic conference; collecting contextual information related to at least one of the user and resources needed by the electronic conference; and resolving, by the processor, contentions among resources needed by the user and resources needed by the electronic conference.
Scalable network security with fast response protocol
This disclosure provides a network security architecture that permits installation of different software security products as virtual machines (VMs). By relying on a standardized data format and communication structure, a general architecture can be created and used to dynamically build and reconfigure interaction between both similar and dissimilar security products. Use of an integration scheme having defined message types and specified query response framework provides for real-time response and easy adaptation for cross-vendor communication. Examples are provided where an intrusion detection system (IDS) can be used to detect network threats based on distributed threat analytics, passing detected threats to other security products (e.g., products with different capabilities from different vendors) to trigger automatic, dynamically configured communication and reaction. A network security provider using this infrastructure can provide hosted or managed boundary security to a diverse set of clients, each on a customized basis.
Context-aware pattern matching accelerator
Methods and systems for improving accuracy, speed, and efficiency of context-aware pattern matching are provided. According to one embodiment, a packet stream is received by a first stage of a CPMP hardware accelerator of a network device. A pre-matching process is performed by the first stage to identify a candidate packet that matches a string or over-flow pattern associated with IPS or ADC rules. A candidate rule is identified based on a correlation of results of the pre-matching process. The candidate packet is tokened to produce matching tokens and corresponding locations. A full-match process is performed on the candidate packet by a second stage of the CPMP hardware accelerator to determine whether it satisfies the candidate rule by performing one or more of (i) context-aware pattern matching, (ii) context-aware string matching and (iii) regular expression matching based on contextual information, the matching tokens and the corresponding locations.
Proactive internet connectivity probe generator
Described herein are reception of first processor-executable program code and a configuration file specifying a target internet protocol address, an asset-identifying information type, and a security protocol, and execution of the received first processor-executable program code to identify a first one or more network communication interfaces of the first computing system, generate a message including information conforming to the asset-identifying information type, the information identifying a first asset, secure the message based on the security protocol, and transmit the secure message to the target internet protocol address via each of the first one or more network communication interfaces.
System and method for IPS and VM-based detection of suspicious objects
A threat detection system is integrated with intrusion protection system (IPS) logic and virtual execution logic is shown. The IPS logic is configured to receive a first plurality of objects and filter the first plurality of objects by identifying a second plurality of objects as suspicious objects. The second plurality of objects is a subset of the first plurality of objects and is lesser or equal in number to the first plurality of objects. The virtual execution logic is configured to automatically verify whether any of the suspicious objects is an exploit. The virtual execution logic comprises at least one virtual machine configured to virtually process content within the suspicious objects and monitor for anomalous behaviors during the virtual processing that are indicative of exploits.
Employing physical location geo-spatial co-ordinate of communication device as part of internet protocol
A current physical location value associated is incorporated with a communication device as part of internet protocol (IP). An IP management component obtains current physical location information of a wireless communication device and modifies the IP address to incorporate the current physical location value corresponding to the current physical location of the communication device as part of the IP address of the communication device to prevent undesired intrusions by hackers, as communications associated with the communication device are routed to/from the communication device that is at the current physical location. If the communication device moves to a new location, the IP management component can perform a new IP address modification to modify the IP address to incorporate a new physical location value associated with the communication device.
Instant raw scan on host PC with virtualization technology
A virtual machine is used to perform a raw scan for evasive malware on a host computer without requiring an interrupt or restart of a host operating system. An antivirus program installs a raw scanner virtual machine. The raw scanner virtual machine is triggered to scan files and memory for malware. The raw scan results are collected by the antivirus program for analysis, such as for use in generating a report or for removal of malware. The memory and files of the host are mapped to a guest space of the virtual machine.
A network security system detects anomalous network device behavior associated with a network device in a group of similar network devices based on baseline network device behavior determined for the group. A graphical visualization may be generated to analyze the groups.
Sequencing virtual machines
A method for sequencing virtual machines in a shared pool of configurable network computing resources comprises sequencing at least one computing element for one or more virtual machines into a respective one or more profiles. Each virtual machine corresponds to a respective profile. The method also includes storing the one or more profiles in a security database and identifying a first group of virtual machines and a second group of virtual machines. The first group of virtual machines corresponds to a security incident in the shared pool of configurable network computing resources. The method also comprises comparing profiles of the first group of virtual machines with profiles of the second group of virtual machines and determining an alteration plan based on the comparison of profiles of the first group with profiles of the second group. The alternation plan is related to the profiles of the second group of virtual machines.
Identification of host names generated by a domain generation algorithm
Host name raw data from access logs of computers is grouped into distinct groups. At least one feature, an alphanumeric or alphabetic-only digest, is extracted from each group and its characters are ordered depending upon their frequency of use. Sampling is performed upon host names from a database of known normal host names to generate groups of randomly selected host names. Similar digests are also extracted from these groups. The digest from the raw data is compared to each of the digests from the normal host names using a string matching algorithm to determine a value. If the value is above a threshold then it is likely that the host names from the raw data group are domain-generated. The suspect host names are used to reference the raw data access log in order to determine which user computers have accessed these host names and these user computers are alerted.
Token based automated agent detection
Service providers may operate one or more services configured to detect requests generated by automated agents. A CAPTCHA may be transmitted in response to requests generated by automated agents. The CAPTCHAs may be included in a modal pop-up box configured to be displayed by a client application displaying a webpage to a customer of the service provider. Furthermore, the CAPTCHAs included in the modal pop-up box may be rendered inactive and caused not to be displayed by client application executing the webpage. Submitted solutions to CAPTCHAs may be presented with a cookie that enables access to resources of the service provider without restriction. Cookies may be tracked and their use may be used to detect automated agent activity.
Detecting network attacks based on network requests
Techniques for analyzing access to a network-based document may be provided. For example, the network-based document may be configured for direct access from client device. Based on an access of a client device to the network-based document, information associated with this access may be recorded. The information may be analyzed to determine whether a condition associated with the direct access may be violated. An issue may be detected with the client device access based on a determination that the condition may be violated.
Method and apparatus for controlling resources access
Controlling resource access, a first device responsive to a request for access to a resource, determines whether to grant the access to the resource, based on an identity of a requestor requesting the access to the resource. The resource is provided by a second device that is separate from the first device. The first device customizes an access token with an access constraint to control the access to the resource, the access token is generated responsive to the first device determining that, based on the identity of the requestor requesting the access to the resource, the access to the resource is granted.
Establishing and using a trust level in mobile phones
Automatically establishing and/or modifying a trust relationship between devices, including mobile devices, in communication, and customizing a user interface workflow based on the trust relationship. Trust relationships are based on numerous proximity-related factors including automatically gathered proximity data, length of time in proximity, and signals detected from a target communication device as well as other nearby communication devices.
Facilitating security enforcement for shared content
Systems and methods that relate to security enforcement for shared content are described. A system includes an interface component that facilitates a display of information indicative of an option to select a defined level of security for a first subset of content of a plurality of content, wherein the defined level of security is indicative of a first type of secure environment. The first type of secure environment can be a hypertext transfer secure (HTTPS) environment or any environment in which content is encrypted prior to transmission over the Internet. A security component determines an association between the first subset of content and the defined level of security; and generates decision information to facilitate output, to a device, of the first subset of content associated with the defined level of security based on a determination that the device provides the first type of secure environment.
Targeted user access control system
A system includes a network interface, at least one processing device, and at least one memory device. The at least one memory device stores instructions that when executed result in initiating creation of a single-use targeted link that provides access to a restricted access data entry system and serves the single-use targeted link through the network interface to a computer system of a targeted user with a time validity constraint. An access request received at the restricted access data entry system through the single-use targeted link is verified as being received within the time validity constraint. A network traffic throttling control reduces network traffic volume received through the single-use targeted link based on determining that the network traffic volume exceeds a traffic volume threshold. An identity control at the restricted access data entry system is applied to confirm entry of at least one identifying characteristic that matches the targeted user.
Embedding security posture in network traffic
Embedding security posture in network traffic is disclosed. Security posture information is received. The security posture information is embedded into a message. The message including the security posture information is sent from a mobile device to a service node. The service node uses the security posture information to validate the mobile device to access a service. The service accesses the service based at least in part on the validation.
Method, device and computer-readable medium for enabling virtual subscriber identity module card
Method, device and computer-readable medium for enabling a virtual Subscriber Identity Module (SIM) card are provided in the disclosure, which belongs to a technical field of communication. The method includes: receiving an initiation instruction for initiating the virtual SIM card; detecting a current talk mode of a communication device based on the initiation instruction, the current talk mode includes a single-card mode; and installing a target talk mode corresponding to the current talk mode according to the current talk mode, the target talk mode includes a dual-card mode. The method and device for enabling a virtual SIM card may solve the problem that the virtual SIM card may not coexist with a physical SIM card in a single-card mode communication device, and may achieve an effect that the virtual SIM card and the physical SIM card may coexist with each other.
Establishment of communication connection between mobile device and secure element
The invention relates to communication technology, and in particular, to a method of establishing communication connection between a mobile device and a secure element as well as a mobile device for implementing the method. The method comprises the following steps: when the mobile device detects that there is a secure element which establishes a physical connection with it, the mobile device performs a secure authentication on the secure element; if the secure authentication passes, the mobile device determines whether there is configuration information inside it which is required for establishing the communication connection between the mobile device and the secure element; and if there is the required configuration information inside the mobile device, the mobile device uses the configuration information to establish the communication connection with the secure element; otherwise, the mobile device obtains required configuration information from the secure element to establish the communication connection with the secure element.
Terminal apparatus, program, and communication system
Authentication information comprising mobile subscriber information of a mobile communication terminal may be communicated to a server, and one or more devices may further communicate with the server to perform an authentication procedure to enable a wireless LAN communication terminal separate from the mobile communication terminal to connect to a network via wireless LAN communication with an access point separate from the mobile communication terminal. In some embodiments, a mobile communication terminal may communicate authentication information comprising mobile subscriber information to a wireless LAN communication terminal separate from the mobile communication terminal and/or a wireless LAN communication terminal may receive authentication information comprising mobile subscriber information from a mobile communication terminal.
Systems and methods for authentication and verification
Computer systems and methods are provided for authenticating a user seeking to conduct at least one interaction with a secured capability provided by a computer. The method includes accessing a first identifier corresponding to the secured capability and sending a second identifier to an electronic device being used by the user. The second identifier corresponds to the secured capability. The method further includes receiving a signal from the electronic device being used by the user. The method further includes using a processor to evaluate, based at least on the signal and one or both of the first identifier and the second identifier, whether the user is authorized to conduct the at least one interaction with the secured capability.
Offline access control for an application
Techniques to facilitate offline access control for an application associated with an industrial automation environment are disclosed herein. In at least one implementation, a a user login prompt for the application is displayed on a display system of a computing system, wherein the user login prompt provides an offline access option for a user to request offline access to the application for a period of time. User login credentials are received along with a selection of the offline access option, which are transferred for delivery to an authentication server, wherein the authentication server authorizes the user for the offline access to the application for the period of time based on the user login credentials. An authentication response is received from the authentication server, wherein the authentication response instructs the application to authorize the user to operate the application for the period of time without requiring authorization from the authentication server.
User authentication method with enhanced security
A user authentication method with enhanced security is provided. The method includes generating a first common authentication key if a user of the user terminal enters a private password and providing the generated first common authentication key to an authentication server, registering the first common authentication key and user information by matching the first common authentication key with the user information, generating a second common authentication key in real time if the user enters the private password, generating a server authentication key, generating first server authentication information by calculating a one time password (OTP) by using the server authentication key as an operation key, generating a user authentication key, generating first user authentication information by calculating an OTP by using the user authentication key as an operation key, and performing user authentication based on whether the first server authentication is identical to the first user authentication.
Document rendering service
Disclosed are some examples of systems, methods and storage media for generating a platform-independent document. In some implementations, a system is capable of receiving a request to generate a platform-independent document, the request including markup language content. The system is further capable of providing the markup language content to a rendering engine. The system is further capable of intercepting resource requests communicated from the rendering engine. The system is further capable of communicating the intercepted requests, or one or more requests based on the intercepted requests, to retrieve resources identified in the intercepted requests. The system is further capable of receiving resources retrieved based on the communicated intercepted requests. The system is further capable of providing the retrieved resources to the rendering engine, which subsequently renders the platform-independent document based on the markup language content and the retrieved resources.
Information processing apparatus, information providing server, program, communication system, and login information providing server
In one example embodiment, the communication system disclosed herein includes an information processing apparatus that acquires address information from a memory device having a free area including the address information and a secure area including account information. The information processing apparatus connects to a resource of a server using the acquired address information. The information processing apparatus causes a security server to acquire the account information from the memory device and transmit the acquired account information to the server such that the server enables a user to access the resource of the server using the account information.
Mechanisms for certificate revocation status verification on constrained devices
A process is provided for communication security certificate revocation status verification by using the client device as a proxy in online status verification protocol. The process utilizes a nonce of an authentication protocol request message (nonce_A) to derive the nonce for the revocation status protocol request (nonce_S) to reduce the number of message exchanges needed between the client and the verifier devices, and a mechanism to send the nonce (nonce_S) prior to actual authentication protocol execution to ease the connectivity requirement of client device from on-demand connectivity to periodic connectivity. Similar functionality is achieved using a random seed established between the verifier and client. The verifier picks a seed for random number generation and sends that seed to the client. The client derives the nonce_S from the seed before status protocol execution, and the verifier derives the nonce_S from the seed before proxied status response verification.
Portable access to auditing information
Systems and methods provide a storage media on a portable physical object associated with a set of credentials that enables access to a set of computing resources associated with a set of Web services. In some embodiments, information including a set of credentials is prepackaged onto the storage media of the portable physical object. A pre-activated subscription to the set of Web services in a distributed system is provisioned. Access to the set of Web services is enabled when the portable physical object is coupled with a computing device and the set of credentials is authenticated. In some embodiments, the portable physical object is purchased by a user on a prepaid basis without requiring the user to register an account with the set of Web services, allowing the user to remain anonymous with respect to interaction with the set of Web services.
Protected information sharing
A request for sharing information of a first user to a second user is received. Responsive to the request, information of the first user is obtained. The information is encrypted using a first server key to generate first encrypted information, the first server key being unavailable to the second user. The first encrypted information is encrypted using a second user key specific to the second user to generate second encrypted information for sharing with the second user.
Reconfigurable access network encryption architecture
An access platform or other network elements can include multiple line cards configured to encrypt data. The platform and/or each of the line cards may receive encryption management data that conforms to a predefined encryption management data interface. The encryption management data received by a particular line card may be generated by a conditional access system device and converted to conform to the encryption management data interface by an encryption manager. Line cards may alternatively be configured for connection to separate encryption hardware components. Line cards may include a block of field programmable gate arrays or other type of programmable hardware that can be configured to execute an encryption module.
Token-based secure data management
In some implementations, tokens that are representative of sensitive data may be used in place of the sensitive data to maintain the security of the sensitive data. For example, data may be separated into sensitive data and nonsensitive data, and at least the sensitive data is securely delivered to a data storage service. The data storage service generates a token that is representative of the sensitive data and stores the sensitive data as secure data. The data storage service may deliver the token to an entity that also receives the nonsensitive data, and the entity may use the token in place of the sensitive data. In some implementations, different tokens are generated each time the same piece of sensitive data is submitted for storage as secure data. Further, in some implementations, access policies define authorizations regarding which entities are able to resolve a token to access the actual sensitive data.
A method for transmitting an encrypted message from a messaging server (106) to a handset (104) comprising the steps of receiving, at the messaging server (106) and from a sender computer (102), a message to be sent to the handset (104) and a handset identifier associated with the handset and determining that the handset is not registered with the messaging server (106) by determining that the handset identifier does not have an associated handset encryption key stored at the messaging server. The handset (104) is registered by sending a notification to the handset requesting registration, receiving back a handset encryption key associated with the handset identifier; and storing the handset encryption key against the handset identifier at the messaging server which is to be used to encrypt the received message before sending. Prior to registering the handset (104), intermediate encryption of the message may be employed to create an intermediate encrypted message to be stored at the messaging server.
Persistent uniform resource locators (URLs) for client applications acting as web services
Techniques to provide persistent uniform resource locators (URLs) for client applications acting as web services are described herein. In one or more implementations, the techniques utilize standard protocols and libraries (e.g., standard HTTP) without relying upon custom/propriety plug-ins. An intermediary server functions as a tunnel service is configured to provide functionality for handling communications between endpoints on behalf of client applications. Additionally, the tunnel service provides a mechanism to generate and assign persistent URLs (or comparable addresses) to client applications. Entities seeking to interact with the client applications use corresponding URLs to direct requests via the tunnel service and down to the appropriate client application. Local storage associated with the client application is employed to store the credentials, such that the URL persists across multiple sessions and the same URL is generated repeatedly by the tunnel service each time corresponding and valid credentials are supplied by a client.
Resolving network address conflicts
Exemplary systems and methods resolve an IP address conflict in a network system, including network systems in a virtual computing environment. An IP address monitor receives a message from a first device connected to a network or a second device connecting to the network. The message includes an indication of a network address conflict between the first and second devices. The IP address monitor detects the IP address conflict from the message, selects one of the first and second devices to disconnect from the network, and sends a message to disconnect the selected device from the network. A new IP address is received for the selected device, and the IP address monitor sends a message to reconnect the selected device to the network.
Bridging relationships across enterprise and personal social networks
A user interface (UI) may be provided that allows a user to connect a first identity in a first social community to another identity in another social community by allowing the user to specify the first identity and another identity. Responsive to a user utilizing the UI, the user may be presented with an option to identify connections in the first social community according to a criteria with members associated with another identity in said another social community. A list of identified connections may be presented.
Systems and methods for detecting compromised messaging accounts
A computer-implemented method for detecting compromised messaging accounts may include maintaining a behavior database that associates a plurality of messaging accounts with messaging behaviors that typify each of the messaging accounts. The method may also include detecting an attempt by a user to send a message from a messaging account. In addition, the method may include determining that the messaging account has potentially been compromised by comparing features of the message with messaging behaviors associated with the messaging account in the behavior database. Finally, the method may include verifying that the user is an owner of the messaging account in response to the determination that the messaging account has potentially been compromised. Various other methods, systems, and computer-readable media are also disclosed.
Contact prioritization and assignment using a social network
A prioritizing entity prioritizes external contacts using a social network and determines people at the external contact who may influence execution of a given matter. The prioritizing entity also prioritizes internal resources with respect to the prioritized external contacts based on social proximity to people at the external contact, also by using the social network. The prioritizing entity assigns a prioritized internal resource to a prioritized external contact. Prioritizing external contacts includes ranking the external contacts based on an estimate of the amounts individual external contacts could spend on a given matter. Prioritizing internal resources includes determining explicit connections and inferred connections with people at the external contact, using the social network.
Systems and methods for email attachments management
Systems and methods consistent with various disclosed embodiments provide for managing email attachments. In one embodiment, a system is disclosed for managing email attachments. The system may include a memory storing software instructions and one or more processors configured to execute the software instructions to perform one or more operations. The operations may include providing an interface for converting an original attachment to an email. The operations may also include converting the original attachment to a modified attachment based on input received through the interface. The operations may further include substituting the original attachment to the email with the modified attachment, and providing information to send the email with the modified attachment.
Schema-based dynamic parse/build engine for parsing multi-format messages
A parse/build engine that can handle multi-format financial messages. The engine converts the different format messages into a common format, and the common format message is then processed by the business service application. A parser examines the message and determines an appropriate schema for the particular format of message received. The schema is a data structure in a schema registry that includes a grammar structure for the received format as well as pointers to handlers for converting the different fields of the message into the internal message format using the grammar structure (the “grammar” can include field sequence, field type, length, character encoding, optional and required fields, etc.). The handlers are individually compiled. As formats change, new formats or changes to old formats can be dynamically added to the parse/build engine by loading new schema and handlers.
Obfuscation of email addresses
A method, apparatus, and computer program product are disclosed for facilitating two-way email communication in manner that obfuscates sender and recipient email addresses. The method includes receiving a correspondence request indication; assigning a first transaction address to a sender and a second transaction address to a recipient; receiving a message from the sender; associating the message from the sender with the first transaction address; and causing a transmission of the message from the sender to the recipient using the first transaction address. A corresponding apparatus and computer program product are also provided.
Method and apparatus for changing font size of message in a mobile communication terminal
Methods and apparatuses are provided that is performed by an electronic device. A display screen provides a first user interface to receive a first user input and to display user inputted content including a first representation of the first user input. An instruction to provide a second user interface is received. The display screen provides the second user interface together with the first user interface in response to the received instruction. A portion of the user inputted content is displayable in the second user interface in an enlarged size. A second user input is received via the second user interface. In response to the second user input, a second representation of the second user input is displayed in the second user interface. The user inputted content displayed in the first user interface is updated by adding the second representation in a displayed size smaller than a size used for displaying the second representation in the second user interface.
System and method for applying gesture input to digital content
A system and method for managing messages within an application interface that includes receiving a message stream; providing a navigational menu to a set of message streams; detecting an initiated gesture item for at least one message within a view of the navigational menu; tracking gesture-state within a progressive order of gesture-states; identifying an action of the gesture-state wherein the action corresponds to the current view and relative ordering of the navigational menu; and applying the message sorting action on the message according to a final gesture-state.
Live partition mobility with shared persistent reservations
According to one embodiment of the present invention, a method is provided. The method may include a computer registering a first instance of a logical partition on a source server with a logical unit and placing a first persistent reservation on the logical unit, wherein the first persistent reservation indicates that only the first instance of the logical partition can hold a reservation on the logical unit. The method may further include the computer registering a second instance of the logical partition on a destination server with the logical unit and downgrading the first persistent reservation, such that the first and second instances of the logical partition can hold persistent reservations on the logical unit. The method may further include the computer placing, by one or more computer processors, a second persistent reservation on the logical unit.
Method and system for arbitraging computer resources in a cloud computing environment
Disclosed are methods and systems for processing a workload among a plurality of computing resources that optimizes the processing price per workload. The method includes breaking the workload into two or more tasks each having a size optimized based on (i) a price history of one or more of the plurality of computing resources and (ii) a predicted duration to complete processing of each of the respective tasks; and sending one of the two or more tasks to a computing resources for which the size of the tasks is optimized.
Virtual resource mapping mechanisms
A task-oriented virtual resource can be dynamically mapped to multiple physical resource types in order to better align resource allocation mechanisms. Mappings between the task-oriented virtual resource and the physical resource types may be managed in accordance with a workload associated with an underlying task being performed by the network on behalf of a user. The number of physical resource units that are mapped to the task-oriented virtual resource may be varied in accordance with one or more workload conditions using a finite state machine. The finite state machine can include nodes representing static or dynamic states for each physical resource type. The nodes may be interconnected via relationships, which can be governed by the workload conditions. Relationships between nodes may be modeled using hybrid graphs.
Techniques for tightly-integrating an enterprise storage array into a distributed virtualized computing environment
Techniques are directed to a cloud-integrated enterprise-class data storage array. It includes (a) an enclosure, (b) a set of storage drives mounted in the enclosure, (c) network interface circuitry mounted in the enclosure, the network interface circuitry communicatively connecting the cloud-integrated enterprise-class data storage array to a network to form a distributed virtualized computing environment, and (d) a redundant set of storage processors mounted in the enclosure. The redundant set of storage processors are configured to (1) process data storage operations directed at the set of storage drives in a highly-available and deterministic manner and (2) operate a cloud storage management node of the distributed virtualized computing environment to manage assignment of logical disks to respective virtual machines of the distributed virtualized computing environment, the logical disks including storage from the set of storage drives. A method and computer program product are also provided.
Utilizing multiple algorithms in a distributed-service environment
Techniques for producing a gentle reduction in throughput in a distributed service when a node of the service encounters a very large backlog of requests and/or when a previously offline node of the service is brought back online. These techniques may utilize multiple different algorithms to determine an amount of work that the distributed service is able to accept at any given time, rather than a single algorithm.
Aggregate network resource utilization control scheme
Methods, apparatuses and systems directed to an aggregate bandwidth utilization control scheme including fair share bandwidth allocation and dynamic allocation of bandwidth in response to detected traffic utilization. In one implementation, the present invention includes a weighted, fair share aggregate bandwidth allocation mechanism that dynamically responds to observed bandwidth utilization to provide unutilized or excess bandwidth to flows and partitions that require it. In another implementation, the present invention features a weighted fair share allocation scheme for hierarchical partition configurations. In other implementations, the present invention provides a per-flow target rate assignment mechanism that prevents spiraling decline of data flow rates.
Minipacket flow control
An apparatus and method for providing minipacket flow control. A device includes a traffic manager interface (TMI) circuit that receives a minipacket, communicates the minipacket to a physical layer circuit, and communicates a minipacket flow control signal to a scheduler circuit that controls if another minipacket is to be sent to the TMI circuit. In one example, upon receiving a minipacket the TMI circuit updates a current credit value, compares the current credit value with a credit limit value, and outputs a minipacket flow control signal that is a function of the comparison. In another example, upon receiving a minipacket the TMI circuit updates a current credit value, compares the current credit value with a credit limit value, reads and compares a credit pool value with a credit pool limit value, and outputs a minipacket flow control signal that is a function of both of the comparisons.
Performing QoS on unknown bandwidths through rate estimating TCP congestion handlers
A system and method is provided for scheduling data packets. The system includes one or more packet engines configured to provide one or more congestion indications for a plurality of connections of a communication link. The system also includes a packet scheduler configured to receive the one or more congestion indications, estimate a link rate of the communication link using the one or more congestion indications and classification information, and schedule the data packets for transmission via the plurality of connections using the estimated link rate and the classification information.
Protocol-independent receive-side scaling
A system and method for protocol independent receive side scaling (RSS) includes storing a plurality of RSS hash M-tuple definitions, each definition corresponding to one of a set of possible protocol header combinations for routing an incoming packet, the set of possible protocol header combinations being modifiable to include later-developed protocols. Based on initial bytes of the incoming packet, a pattern of protocol headers is detected, and used to select one of the plurality of RSS hash M-tuple definitions. The selected RSS hash M-tuple definition is applied as a protocol-independent arbitrary set of bits to the headers of the incoming packet to form a RSS hash M-tuple vector, which is used to compute a RSS hash. Based on the RSS hash, a particular queue is selected from a set of destination queues identified for the packet, and the packet is delivered to the selected particular queue.
Information processing method, device and system
A method for processing information is provided. The method includes: a first member in an equipment group learns forwarding information when forwarding traffic, wherein an ESADI instance based on the equipment group is created on each member in the equipment group; when learning new forwarding information, the first member generates an ESADI frame by utilizing the ESADI instance created thereon, wherein the ESADI frame carries the new forwarding information; and the first member transmits the ESADI frame to a TRILL network where it is.
Multi-protocol header generation system
A communication device includes a data source that generates data for transmission over a bus, and a data encoder that receives and encodes outgoing data. An encoder system receives outgoing data from a data source and stores the outgoing data in a first queue. An encoder encodes outgoing data with a header type that is based upon a header type indication from a controller and stores the encoded data that may be a packet or a data word with at least one layered header in a second queue for transmission. The device is configured to receive at a payload extractor, a packet protocol change command from the controller and to remove the encoded data and to re-encode the data to create a re-encoded data packet and placing the re-encoded data packet in the second queue for transmission.
Using headerspace analysis to identify flow entry reachability
Some embodiments provide a method for using headerspace analysis. The method receives several flow entries for distribution to a forwarding element in a network. Each flow entry includes a set of conditions to be matched by a packet header and a set of actions to perform on a packet that matches the set of conditions. The method models each of the flow entries as a function that operates on a representation of a packet header. The method determines a set of packet headers of packets to be received by the forwarding element. The method determines a set of the flow entries that are not matched by a packet header of any packet to be received by the forwarding element by applying the functions to representations of the identified set of packet headers.
Reducing link state protocol traffic during graceful restart
A routing device coupled to a remote routing device via a link on which a flood reduction technique is used, such as a demand circuit, is configured to store an indication of a link state of the remote routing device and a first sequence number associated with the link state, receive an indication that the remote routing device is performing a graceful restart, and then receive data indicative of a new link state of the remote routing device and a second sequence number. The routing device determines whether the new link state is different than the stored indication of the link state, and if not, avoids requesting the current link state from the remote routing device. In this manner, the routing device may reduce link-state protocol traffic within an autonomous system including the routing device and the remote routing device.
Signal characteristic information for networks
A device may cause an optical signal to be transmitted via a network path. The device may receive, from a network device, a link layer discover protocol (LLDP) message. The LLDP message may include signal characteristic information regarding the optical signal. The device may adjust transmission of the optical signal based on receiving the LLDP message. The device may cause an adjusted optical signal to be transmitted via the network path based on adjusting transmission of the optical signal.
Single queue link aggregation
A method for transmitting a packet on a logical port comprising two or more physical ports comprises receiving a packet of a class of service; storing the packet in a memory; maintaining a lookup table relating a plurality of identifiers to at least one physical port; storing a pointer to the stored packet in the memory in a single pointer list for the class of service along with a selected one of the identifiers; and copying the stored packet to one or more physical ports corresponding to the selected identifier for transmission on at least one of the physical ports. In one implementation, a plurality of the physical ports are grouped into a logical port, and the received packet is processed to determine its logical port and its class of service.
Multi-path routing control for an encrypted tunnel
The present disclosure is directed to a system and method for applying unique routing rules to encrypted data packets being transmitted via a tunneling protocol. Because encrypted data packets are unintelligible at intermediary points along a secured link or “tunnel,” a multi-path router located between the tunnel endpoints is typically unable to apply unique routing rules. To enable unique routing, the disclosed method relies on a unique identifier that is associated with the secured link established between an initiator and a receiver (i.e., the tunnel endpoints). The unique identifier is transmitted with one or more encrypted data packets and is used at intermediary points to differentiate the encrypted data packets so that unique routing rules can be applied.
Path routing for communication sessions
Techniques for path routing for communication sessions are described. In at least some embodiments, a communication session refers to an exchange of communication data between different nodes in a network. According to various embodiments, a routing path for a communication session includes peering points between different networks to enable communication sessions to be routed between devices connected to the different networks. In an event that performance degradation occurs in a communication session over a particular routing path, techniques discussed herein enable the communication session to be rerouted to a different routing path. The different routing path, for example, may be indicated as providing a higher quality data flow than the original routing path. Thus, rerouting the communication session can improve the quality of user experience during the communication session.
Confidentially determining route diversity for network routes
A device receives, from a customer device, a request for a diversity determination associated with a first route provided in a first provider network and a second route provided in a second provider network. The request includes a first identifier associated with the first route and a second identifier associated with the second route. The device forwards the first identifier to a first provider device, and receives, based on the first identifier, first geospatial information associated with the first route. The device forwards the second identifier to a second provider device associated, and receives, based on the second identifier, second geospatial information associated with the second route. The device determines whether the first and second routes are diverse based on the first geospatial information and the second geospatial information, and provides, to the customer device, diversity information regarding whether the first and second routes are diverse.
Location based technique for detecting devices employing multiple addresses
In an example embodiment, there is described herein a location based detection technique that determines whether multiple requests from different addresses, such as a Layer 2 MAC (Media Access Control) address and/or layer 3 IP (Internet Protocol) address are being sent form a single device. In particular embodiments, if the device sends more than a predefined threshold number of requests, those requests can be ignored and/or denied.
Synchronization of data for colliding bodies
On a server, a collision handler is called by a physics simulation engine to categorize a plurality of rigid bodies in some simulation data as either colliding or not colliding. The simulation data relates to a triggering event involving the plurality of rigid bodies and is generated by a simulation of both gravitational trajectories and collisions of rigid bodies. Based on the categorization and the simulation data, a synchronization engine generates synchronization packets for the colliding bodies only and transmits the packets to one or more client computing devices configured to perform a reduced simulation function.
Network wide source group tag binding propagation
In one embodiment, a method includes generating at a network device, a trace packet comprising an IP (Internet Protocol) to Source Group Tag (SGT) binding, transmitting the trace packet from the network device to an SGT capable device, wherein at least one non-SGT capable device is interposed in a path between the network device and the SGT capable device, and receiving at the network device, a reply packet from the SGT capable device in response to the trace packet, the reply packet indicating that the IP to SGT binding was installed at the SGT capable device. An apparatus and logic are also disclosed herein.
Monitored system event processing and impact correlation
The subject disclosure is directed towards providing a user with impact-related information regarding the impact of a monitored event (for a detected resource issue) to a managed system, such as a storage system. An event is generated when a resource such as a hard disk has an issue, e.g., has failed. Information from the event is automatically extracted and used to communicate with a management program coupled to the resource. Communication with the management program obtains information as to the impact the resource issue has to the system, e.g., what servers and/or applications are impacted. The impact-related data may be presented in a report to a user.
Supporting OAM on protecting connections in shared mesh protection environment
A method for detecting the liveliness and synchronizing the control-plane and data-plane on protecting connections in a shared mesh network environment through methods for probing the protecting connection conditions by sending in-band messages; and synchronization of control plane and data plane by using LSP-ping messages on the protecting connections.
Method and system for measuring audio transmission delay
A method and a system for measuring an audio transmission delay are provided. Synchronization operation is performed on transmission of an original audio codebook to be tested between a transmitter and a receiver. A transmitter starts sending the original audio codebook to be tested to a receiver in response to sending start instruction information, and stops sending the original audio codebook to the receiver in response to sending end instruction information. The receiver starts capturing the original audio codebook from the transmitter in response to receiving start instruction information and stops capturing the original audio codebook from the transmitter in response to receiving end instruction information. The audio transmission delay is obtained based on a test audio codebook captured by the receiver and the original audio codebook pre-stored in the receiver.
Monitoring packet residence time and correlating packet residence time to input sources
An output circuit, included in a device, may determine counter information associated with a packet provided via an output queue managed by the output circuit. The output circuit may determine that a latency event, associated with the output queue, has occurred. The output circuit may provide the counter information and time of day information associated with the counter information. The output circuit may provide a latency event notification associated with the output queue. An input circuit, included in the device, may receive the latency event notification associated with the output queue. The input circuit may determine performance information associated with an input queue. The input queue may correspond to the output queue and may be managed by the input circuit. The input circuit may provide the performance information associated with the input queue and time of day information associated with the performance information.
Method and apparatus for link check in passive optical network
A method and an apparatus for checking a PON link are provided. The method includes that MEPs are established respectively at the OLT interface of an OLT and the network interfaces of a plurality of gateways to form an access OAM domain; and in the access OAM domain, an Ethernet OAM message is sent between the MEP of the OLT and the MEP of the corresponding gateway to test the continuity of a service link between the OLT interface of the OLT and the corresponding gateway. Thus, the related functions of the ONU are transferred to the OLT, the OLT simulates the UNI of the ONU to enable the Ethernet OAM function and monitors in real time or manually checks the status of the service link from the gateway to the OLT, so that a failure point of an internal service layer of an access node is determined, the cost on the ONU device and the system configuration and administration cost are reduced greatly, and the Ethernet maintenance requirement of an optical access node in the TR101VLAN architecture is met.
Intermediate node determining method and apparatus
Embodiments of the present invention provide an intermediate node determining method and apparatus, where the method includes: collecting an original data flow used to acquire a target service; based on the original data flow, determining request nodes and response nodes that are in nodes, and determining a connection relationship between the nodes; combining the determined request nodes into a first composite node and the determined response nodes into a second composite node, and determining, based on the determined connection relationship between the nodes, a connection path between the first composite node and the second composite node; and determining, based on a selected optimization objective and from the connection paths, at least one preferred connection path, to acquire an intermediate node on the at least one preferred connection path.
Event driven metric data collection optimization
Systems, methods, and other embodiments associated with event driven metric data collection optimization are described. In one embodiment, a method includes providing a domain knowledge catalog that defines, for each of a plurality of source metrics: i) a plurality of target type relationships and ii) for each target type relationship, a plurality of metrics that are related to the source metric. For a particular system, a deployment topology is determined defines target entities that are included in the system, where the target entities comprise respective instances of a subset of the target type relationships. The method includes receiving configuration of an event related to a source metric. The domain knowledge catalog is accessed and metrics that are related to the subset of target type relationships for the source metric are selected for collection.
Predictive cloud provisioning based on human behaviors and heuristics
A system for predictively provisioning cloud resources based on human behaviors and heuristics includes a computer processor and logic executable by the computer processor. The logic is configured to implement a method. The method includes monitoring a collection of events relating to a customer application as well as monitoring an infrastructure load on resources for the customer application. A causal relationship is evaluated between an event and the infrastructure load. A predictive rule is then constructed based on the causal relationship. Resource requirements are anticipated based on the predictive rule and a provisioning of resources in a service domain is requested for the anticipated resource requirements, according to exemplary embodiments.
Traffic analysis for HTTP user agent based device category mapping
A traffic analysis system monitors data traffic in a communication network. In the data traffic, flows are detected which are based on the Hypertext Transfer Protocol (HTTP). For each of the flows, a data record is created. The data record comprises at least a User Agent identifier from a message header of a HTTP message of the flow and a device identifier of a user equipment transmitting the flow. The data records are analyzed to determine a mapping of at least one User Agent identifier in the data records to a corresponding device category.
Communication terminal, method of communication and communication system
A communication terminal comprises: first means that communicates with a network system that includes a forwarding apparatus forwarding a packet and a control apparatus informing the forwarding apparatus of a processing rule prescribing a packet processing method; second means that determines a processing operation to be executed by the network system from among packet processing operations to be executed by the communication terminal; and third means that informs the forwarding apparatus of a processing rule corresponding to the determined packet processing operation.
Method and apparatus for service aware charging and control in a communication network
A method and service aware charging controller for enabling service aware charging of access to a data service in a communication network. A request for a first data service is received and a first property of the request for the first data service is determined. Charging of the first data service is initiated using the first property. A request for a second data service is received and a second property of the request for the second data service is determined. It is further determined that the second data service is to be charged as a subordinate service of the first data service due to fulfillment of a condition based on the first and second property. Charging of the second data service as a subordinate service of the first data service is initiated.
System, method and computer program product for serving an application from a custom subdomain
In accordance with embodiments, there are provided mechanisms and methods for serving an application from a custom subdomain. These mechanisms and methods for serving an application from a custom subdomain can enable improved data security, enhanced system performance, optimized resource utilization, etc.
System and method for managing content items for sharing across multiple sites
Systems and methods for managing content items of the type used in Web sites. In accordance with the disclosure, site objects, channel objects and content objects are associated with each other to form a hierarchical site structure. The content objects are linked to corresponding content items in a content repository, and are grouped together by association with channel objects in the site structure. Each of the objects in the site structure has an associated set of content services and can be deployed individually or in combination, while maintaining references to the related objects in the hierarchical site structure.
Request processing in a content delivery network
A content delivery framework (CDF) includes a plurality of devices, each device configured to run at least one content delivery (CD) service of a plurality of CD services. The plurality of CD services comprise one or more CD service networks, and each particular CD service network has a dynamic network topology.
Method, device and system for controlling network path
Embodiments of the present invention provide a method, a device, and a system for controlling a network path, where the method includes: the first control device generates path information for a first AP according to network topology information, and generates first forwarding information for the first AP according to acquired forwarding resource information of the first AP and the path information, and sends the first forwarding information to the first AP; the first control device determines that a second AP which is not managed by the first control device is included in the path information, sends the path information to a second control device for managing the second AP, so that the second control device generates second forwarding information for the second AP according to the path information and the acquired forwarding resource information of the second AP, and sends the second forwarding information to the second AP.
Home network identification method and device
A home network topology identification method, wherein the home network (10; 11) has a plurality of network devices (27, 28, 29) with a residential gateway (23) among them, the method comprises the following steps: (1a) obtain at least one home network parameter from at least one of the network devices (27, 28, 29); (1b) obtain a network channel gain function (CGF) of the home network (10; 11) from one of the network devices (27, 28, 29); (1c) transform the channel gain function (CGF) into the time domain to obtain an equivalent estimated channel delay spread function (CDS); (1d) obtain an estimated blind network topology from the estimated channel delay spread function (CDS) and a propagation speed of the network; and (1e) correlate the estimated blind network topology with the at least one home network parameter to obtain at least one structural network topology parameter; and a management center device (25) that is remote from a home network (10; 11) having a plurality of network devices (27, 28, 29) with a residential gateway (23) among them, wherein the management center device (25) is provided to carry out steps (1a) to (1e) of the method.
Automated topology discovery and management for electric meters
A method for automated topology discovery and management of meter nodes in a power grid is described. In the discovery mode any of the meter nodes is able to act as a proxy for a data concentrator to sort out the topology, and to determine the best path for communicating between a concentrator and each of the meter nodes.
Collaborative defense of energy distribution protection and control devices
A method is disclosed for preventing malicious settings changes to IEDs in a power transmission and distribution network. Attempted changes to the protection settings of an IED is detected and transmitted to one or more neighboring IEDs. The neighboring IEDs check for consistency of the new settings and return conformance or nonconformance signals. If a nonconformance signal is received, the attempted setting change is not allowed.
Virtual serial cable
Techniques and systems for providing a virtual serial cable are provided. A network server, a method, and a computer-program product may be provided. A network server may receive a serial communication from a first serially-connected device in a first location, wherein the first serially-connected device is assigned a first universally unique identifier (UUID), and wherein the serial communication includes a second (UUID) assigned to a second serially-connected device in a second location. A non-transitory computer-readable storage medium may contain instructions, when executed, cause one or more processors to obtain the (UUID), determine that the second (UUID) is assigned to the second serially-connected device, and create a virtual serial connection between the first and second serially-connected devices. The network server may transmit the serial communication to the second serially-connected device located in the second location. The serial communication causes the second serially-connected device to perform an operation.
Systems, devices, and methods for generating latency bounded decisions in a telecommunications network
The various embodiments include methods, computing devices and communication systems for controlling services in a communications network. A communications server may be configured to receive bounding information from a first server, decision making information from a second server, and a request to generate a decision from any of a number of different systems or components. The communications server may define bounds for generating the decision based on the received bounding information, and generate the decision based on the received decision making information and defined bounds. The communication server may send the generated decision to a third server implementing a functional system, such as a server in policy management system, policy enforcement system, charging system, or mobile application server system.
Service failover and failback using enterprise service bus
A method, system, and computer program product for service failover and failback using ESB are provided in the illustrative embodiments. A determination is made, by a processor at a first data processing system, whether a service being requested in a request can be provided from a failover provider system. An event log record is used to determine whether a connection failure event occurred with a primary provider system of the service. An evaluation is made whether the request can be routed to the failover provider system. The request is routed to the failover provider system.
Information processing device, information processing system, and communication device
An information processing device includes a transfer unit and an interface unit, the interface unit distributes transmission to a plurality of first lanes, and generate reception information from a plurality of pieces of distribution reception data received through a plurality of second lanes, the transfer unit includes a reception processing unit to extract reception data included in the reception information, and first error information indicating an error in any of the first lanes and a degeneration management unit to generate first degeneration information indicating a use stop lane among the first lanes, based on the first error information, generate second degeneration information indicating a use stop lane among the plurality of second lanes, based on second error information that is output from the interface unit, and cause the transmission processing unit to generate transmission information including the second degeneration information.
Receiver with data-aided automatic frequency control
A method in a receiver includes receiving from a transmitter a signal including at least first and second frames that carry same data. First and second data symbols are identified in the respective first and second frames, wherein the first symbol has a same data value as the second data symbol. A frequency offset between the transmitter and the receiver is estimated based at least on the identified first and second data symbols. A frequency of the receiver is adjusted based on the estimated frequency offset.
Synchronization sequences and carrier type detection
Systems and methods relating to detecting one or more characteristics (e.g., a carrier type or a carrier mode) of a carrier signal transmitted by a radio access node of a cellular communications network are disclosed. In one embodiment, a method of operation of a wireless device includes receiving a carrier signal transmitted by a radio access node and detecting, in the carrier signal, a first physical signal that primarily supports synchronization and cell identification and a second physical signal that supports a functionality other than synchronization and cell identification. A time-domain spacing between the first and second physical signals is a function of a characteristic of the carrier signal. The method further includes determining a characteristic of the carrier signal based on a time-domain spacing between the first and second physical signals detected in the carrier signal.
Apparatus and method for sending and receiving broadcast signals
A broadcast signal transmitter is disclosed. A broadcast signal transmitter according to an embodiment of the present invention comprises an input formatting module performing baseband formatting and outputting at least one Physical Layer Pipe (PLP) data; a BICM module error-correction processing the PLP data; a framing & interleaving module interleaving the PLP data and generating a signal frame; and a waveform generating module inserting a preamble into the signal frame and generating a broadcast signal by performing OFDM modulation.
Process for tunnelized cyclostationary to achieve low-energy spectrum sensing
A system and method use tunnelizing for analyzing frequency spectrum. The method may include the steps of under sampling an input signal to take samples in one or more tunnels each with a tunnel bandwidth that is equal to or less than a total analysis bandwidth of the input signal; detecting one or more cyclostationary features of the input signal based on the samples; and determining one or more signal types of the one or more cyclostationary features based on the one or more cyclostationary features.
Direct digital sequence detector and equalizer based on analog-to-sequence conversion
Methods and apparatuses for direct sequence detection can receive an input signal over a communication channel. Next, the input signal can be sampled based on a clock signal to obtain a sampled voltage. A set of reference voltages can be generated based on a main cursor, a set of pre-cursors, and a set of post-cursors associated with the communication channel. Each generated reference voltage in the set of reference voltages can correspond to a particular sequence of symbols. A sequence corresponding to the sampled voltage can be selected based on comparing the sampled voltage with the set of reference voltages.
Method of performing uplink channel estimation and base station using the same
A method of performing uplink channel estimation and a base station using the same are provided. The method is applicable to serve at least two UE equipments (UEs) in a communication system. The at least two UEs are located in at least two beam sectors respectively. The base station comprises a plurality of antennas. The method includes: determining whether multipath of the at least two UEs passing through a same beam sector; assigning a first and a second training sequence for a first UE and a second UE of the at least two UEs respectively; receiving a reference signal, wherein the reference signal is transmitted by the first UE and the second UE according to the first and the second training sequence; and performing channel estimation for the first UE and the second UE according to the reference signal, the first and the second training sequence.
Method and apparatus for completing a circuit switched service call in an internet protocol network
A method and an apparatus for completing a circuit switched service call in an Internet Protocol network are disclosed. For example, the method receives a session request from a calling party to a called party, wherein the session request includes a service tag. The method determines a value of the service tag in the session request, and queries an tElephone NUmbering Mapping (ENUM) server for one or more Naming Authority Pointer (NAPTR) resource records associated with the called party. The method selects one of the one or more NAPTR resource records in accordance with the service tag, if the one or more NAPTR resource records associated with the called party are returned, and processes the session request using the one of the one or more NAPTR resource records that is selected.
Programmable infrastructure gateway for enabling hybrid cloud services in a network environment
An example method for a programmable infrastructure gateway for enabling hybrid cloud services in a network environment is provided and includes receiving an instruction from a hybrid cloud application executing in a private cloud, interpreting the instruction according to a hybrid cloud application programming interface, and executing the interpreted instruction in a public cloud using a cloud adapter. The method is generally executed in the infrastructure gateway including a programmable integration framework allowing generation of various cloud adapters using a cloud adapter software development kit, the cloud adapter being generated and programmed to be compatible with a specific public cloud platform of the public cloud. In specific embodiments, identical copies of the infrastructure gateway can be provided to different cloud service providers who manage disparate public cloud platforms; each copy of the infrastructure gateway can be programmed differently to generate corresponding cloud adapters compatible with the respective public cloud platforms.
Tag conversion apparatus
A controller of a tag conversion apparatus configured holds tag conversion information associating addresses of communication apparatuses and information on tags of tagging schemes for network separation, analyzes a frame input from one of the plurality of ports and determine a current tagging scheme of the frame, determines a tagging scheme associated with a destination address of the frame based on the tag conversion information, and converts the frame to a frame of the tagging scheme associated with the destination address based on the tag conversion information when the tagging scheme associated with the destination address and the current tagging scheme are different.
Method and apparatus for plug-in wireless safety devices
An aftermarket vehicle communications device that that is part of a V2X communications system. The device can be a plug-in device, a wireless device separate from the vehicle, such as a key fob, wearable or a smart phone, or a permanent retrofit device mounted to the vehicle. The device is electrically coupled to the vehicle by, for example, an OBD connection, a USB connection, a CAN bus connection, an HDMI connection or wirelessly. The device includes a radio for transmitting and/or receiving communications signals, a memory for storing security information and vehicle application data, a location processor such as a global navigation satellite system receiver, a verification processor for verifying messages, and a communications processor configured to be put in electrical communication with a CAN bus on the vehicle, where the communications processor receives vehicle location signals from the location processor, files from the memory and signals from the radio.
System and method for simulating a user presence
A system and method for simulating a presence between a first user in a first pod at a first location and a second user in a second pod at a second location is provided. A first user suit is disposed in the first grid pod and a second user suit is disposed in the second grid pod. A first controller unit is electrically connected with the first pod and a second controller unit is electrically connected with the second pod. At least one input sensor is disposed in each of the first and second pods. Output devices are disposed in the first and second pods. A mainframe is electrically connected with the first and second controller units for receiving inputs from the input sensors and for providing instructions for activating the output devices to simulate the interaction of the first and second users with one another.
Managing service user discovery and service launch object placement on a device
Methods and apparatuses to manage service user discovery and service launch object placement on a device. A method comprising: obtaining information to assist in identifying a portion of a user interface of a wireless device, the wireless device communicatively coupled to a network system over a wireless access network; determining a differentiating attribute of the identified portion of the user interface; obtaining one or more service launch objects for placement in the identified portion of the user interface; and sending configuration information to the wireless device over the wireless access network to assist the wireless device in placing the one or more service launch objects in the identified portion of the user interface.
Production of cryptographic signatures
A method and system configured to produce a cryptographic signature on a message, under a key, at a user computer wherein the key is shared between the user computer, which stores a first key-share, and an authentication computer, which stores a second key-share and a first authentication value. The user computer encodes the message to produce a blinded message, produces the first authentication value from a user password and a secret value, and produces a second authentication value by encoding the first authentication value and a nonce. The authentication computer uses the nonce to determine if the first authentication value is correct and, if so, encodes the blinded message using the second key-share to produce a partial signature. The user computer produces a signature on the message under the key by encoding the partial signature and the message using the first key-share and an unblinding function.
Digital certificate issuer-correlated digital signature verification
A message including a digital signature of a message originator is received at a processor. In response to determining that the message originator is authorized by a data protection policy to originate the message, a determination is made as to whether a specific authorized certificate issuer is configured for the message originator within a data protection policy. In response to determining that the specific authorized certificate issuer is configured for the message originator within the data protection policy, a determination is made as to whether a message originator certificate used to generate the digital signature of the message originator is issued by the specific authorized certificate issuer configured for the message originator within the data protection policy.
Password-authenticated public key encryption and decryption
Examples of techniques for password-authenticated public key encryption and decryption are disclosed. In one example implementation according to aspects of the present disclosure, a computer-implemented for password-authenticated public key decryption may include generating, by a first user processing system, a public key and a secret key and further generating an authenticated public key using the public key and an authentication password. The method may also include transmitting, by the first user processing system, the authenticated public key to a second user processing system. Additionally, the method may include receiving, by the first user processing system, a ciphertext from the second user processing system. The method may further include decrypting, by the first user processing system, the ciphertext using at least one of the secret key and the authentication password to generate a data message.
Key extraction during secure boot
One feature pertains to a method for extracting a secret key during a secure boot flow of an integrated circuit. Specifically, the secure boot flow includes powering ON a first volatile memory circuit to generate a plurality of initial logical state values, deriving secret data based on the plurality of initial logical state values, storing the secret data in a secure volatile memory circuit that is secured by a secure execution environment (SEE), clearing the plurality of initial logical state values in the first volatile memory circuit, executing a cryptographic algorithm at the SEE to extract a secret key based on the secret data, and storing the secret key in the secure volatile memory circuit. The secure boot flow controls access to the first volatile memory circuit to secure the secret data and the plurality of initial logical state values from the insecure applications.
Quantum key distribution device, quantum key distribution system, and quantum key distribution method
According to an embodiment, a quantum key distribution device includes a sharer, a key distillation processor, a first manager, and a second manager. The sharer is configured to share a photon string with the another quantum key distribution device using quantum key distribution via a quantum distribution channel, and obtain a photon bit string corresponding to the photon string. The key distillation processor is configured to generate a link key from the photon bit string. The first manager is configured to store the link key as a link transmission key. The second manager is configured to store, in a storage, a first application key from an application key to be used in cryptographic data communication, encrypt a second application key from the application key, using the link transmission key, and send the encrypted second application key to another quantum key distribution device via a classical communication channel.
Countermeasure to power analysis attacks through time-varying impedance of power delivery networks
A method and system for a countermeasure to power analysis attacks, where an impedance element is coupled to a power source providing power to a cryptographic module causing a measurable power supply noise, a timing sequence is generated, and the impedance element is decoupled from the power source based on the timing sequence to cause the measurable power supply noise to vary according to the timing sequence.
Device including single wire interface and data processing system including the same
A master device communicates with a slave device through an asynchronous serial communications link. The master device includes a single pad configured to communicate a command frame including an address and a data frame including data with the slave device via a single wire; and a processing circuit configured to generate an oversampling clock signal from a clock signal, to perform a synchronization process for selecting one of a plurality of clock phases of the oversampling clock signal, and to perform a sampling process for sampling an each bit value included in the data frame transmitted from the slave device using a clock phase at the same position as the clock phase selected during the synchronization process.
Method to enhance MIPI D-PHY link rate with minimal PHY changes and no protocol changes
System, methods and apparatus are described that facilitate transmission of data, particularly between two devices within an electronic apparatus. A first transition may be detected in a signal carried on a data lane of a data communications link or carried on a timing lane of the data communications link and an edge may be generated on a receiver clock signal based on the first transition. Data may be captured from the data lane using the receiver clock signal. The timing lane may carry a clock signal, a strobe signal or another signal providing timing information. The strobe signal may transition between signaling states when no state transition occurs on any of a plurality of data lanes at a boundary between consecutive data periods.
System and method for windowing in full-duplex communications
A system and method for establishing windows that govern the exchange of acknowledgements in a full-duplex communication. The window is established for two nodes which transmit asymmetric frame sizes in full-duplex mode. The window is related to the size of the asymmetric frames. Frames are exchanged in full-duplex between the two nodes, and the window size is defined as enabling the nodes to send data until the number of unacknowledged frames at the nodes is less than or equal to the window size, at which point acknowledgments are exchanged simultaneously. In sending the acknowledgment, both nodes can send acknowledgments simultaneously in full-duplex in the same frequency bin.
Channel information feedback method, user equipment, method for sending data, and base station
A method and system for feeding back channel information to coordinated cells, the method including: measuring channel qualities of downlink channels between coordinated cells and user equipment; classifying the coordinated cells into different coordinated cell classes according to the measured channel qualities; based on different channel quality intervals corresponding to different coordinated cell classes, respectively selecting channel information feedback modes with different feedback enhancement degrees for different coordinated cell classes; and using the selected channel information feedback modes with different feedback enhancement degrees to determine the channel information to be fed back to the coordinated cells in each coordinated cell class according to a pre-determined order, and sending the determined channel information to the coordinated cells.
Methods, systems, and computer program products for parameter estimation based on historical context information
Methods and systems are described for parameter estimation based on historical context information. In one aspect, a communication context for a first mobile device is determined. The communication context is compared to a stored historical communication context of at least one other mobile device, wherein the stored historical communication context includes at least one of communication parameter estimates, mobile device statistics, mobile device transmit settings, and base station receiver settings. Parameters for communicating with the first mobile device are estimated based on the comparison.
Receiving apparatus in wireless communication system and channel estimation control method
It is desired to provide a receiving apparatus in a wireless communication system and a channel estimation control method that are capable of reducing delay in channel estimation and the error rate in decoding channel information. To achieve this, in a wireless communication system using a first reference signal, with which a control information signal is not multiplexed, and a second reference signal, with which a control information signal is multiplexed, a receiver (200) includes: an A/N detection selection unit (211) that selects whether to use both the first reference signal and the second reference signal for channel estimation or to use only the first reference signal for channel estimation; and a channel estimation unit (209) that carries out channel estimation by use of the selected reference signal(s).
Method and device for canceling interference and receiving data in wireless communication system
The present invention relates to a wireless communication system. A method by which a terminal cancels interference and receives data in a wireless communication system, according to one embodiment of the present invention, comprises the steps of receiving first downlink control information (DCI) including scheduling information for receiving a physical downlink shared channel (PDSCH) from a base station, receiving second DCI including scheduling information on an interference channel from a second base station, and canceling the interference from the second base station on the basis of the first DCI and the second DCI, and receiving the PDSCH.
System and method of using radio altimeter frequency spectrum for wireless signals
An avionics system comprises a plurality of avionics components; at least one OFDM transmitter coupled to a respective one or more of the plurality of avionics components and configured to transmit a wireless OFDM signal comprising a plurality of sub-bands; at least one OFDM receiver coupled to a respective one or more of the plurality of avionics components and configured to receive the wireless OFDM signal transmitted by the OFDM transmitter; and a radio altimeter configured to transmit a signal tone that sweeps a frequency spectrum allocated to the radio altimeter at a predefined rate and periodicity. The at least one OFDM transmitter is configured to transmit the wireless OFDM signal in the frequency spectrum allocated to the radio altimeter and to sequentially turn off respective subsets of the plurality of sub-bands in synchronization with the predefined rate and periodicity of the signal tone frequency sweep.
Methods and arrangements for handling a scheduling of a narrowband transmission in a cellular network
A method in a base station for handling a scheduling of a narrowband transmission from a user equipment in a cell served by the base station is provided. The base station and the user equipment are comprised in a cellular network. A time resource available for the scheduling is divided into available subframes. A frequency resource available for scheduling in each respective subframe is divided into available resource blocks. The base station selects a subframe among the subframes available for scheduling. Narrowband transmissions are to be prioritized for scheduling to the selected subframe. The base station schedules the transmission to a subset of the available resource blocks in the selected subframe when an indication that the transmission from the user equipment is a narrowband transmission is obtained.
Detecting presence/absence of an information signal
A method and apparatus for detecting the presence of an information signal in received inputs. Inputs are received and an expected variance of the received inputs is determined based on an assumed statistical distribution of power values. Using the determined expected variance of the received inputs, a first hypothesis is tested that the received inputs include an information signal to detect a presence of the information signal.
Receiver and decoding method thereof
A receiver is provided, which includes an antenna configured to receive a plurality of superposition coded signals from a plurality of base stations; and a signal processor configured to perform decoding of a plurality of layer signals included in the superposition coded signals by decoding an uppermost layer signal among the layer signals through applying Gaussian approximation only to remaining layer signals except an upper layer signal which is a next uppermost layer signal among the layer signals.
Digital representations of analog signals and control words using different multi-level modulation formats
A method implemented by a transmitter, comprising encoding digital in-phase and quadrature-phase (IQ) data associated with a plurality of analog signals according to a first multi-level modulation format to produce a modulated IQ signal, encoding control information associated with the plurality of analog signals according to a second multi-level modulation format that is different from the first multi-level modulation format to produce a modulated control signal, aggregating the modulated IQ signal and the modulated control signal via time-division multiplexing (TDM) to produce an aggregated TDM signal, and transmitting the aggregated TDM signal over a communication channel.
Apparatus and method for sending vehicle broadcast information
The present invention provides a method for sending vehicle broadcast information broadcasts a message of first vehicle information at a first resource location of each cycle, where the message of the first vehicle information includes at least driving information of a vehicle that carries first UE; detects, at a second resource location of each cycle, a message of second vehicle information sent by second UE, where the message of the second vehicle information includes at least driving information and a first collision identifier that are of a vehicle that carries the second UE, and the first collision identifier is used to indicate that colliding interference exists at the first resource location of the first UE in each cycle.
Front end module for automatic test equipment
Example automatic test equipment (ATE) includes: a test instrument for outputting test signals to test a device under test (DUT), and for receiving output signals from the DUT, with the test instrument including a front-end module, and with the front-end module including internal circuitry for performing functions relating to the DUT; and external circuitry for performing the functions relative to the DUT via the test instrument, with the external circuitry being external to the front-end module and being shared among multiple front-end modules or channels of the test instrument. The test instrument is configurable to use either (i) the internal circuitry, (ii) the external circuitry, or (iii) a combination of circuits in the internal circuitry and the external circuitry to perform the functions.
Communicating data with audible harmonies
In some implementations, a process for communicating data over audio is performed. In one aspect, one or more ordered sequences of audio attribute values that are selected based on a musical relationship between the audio attribute values and associated with data values may be played by a first device and received by a second device. This technique may allow for sound-based communications to take place between devices that listeners may find pleasant.
Adaptive post digital filter and inter-symbol interference equalizer for optical communication
Modulated optical signals are received in a coherent optical receiver employing both post digital filter and inter-symbol-interference (ISI) equalizer such as a maximum likelihood sequence estimation (MLSE) or Bahl-Cocke-Jelinek-Raviv (BCJR) algorithms. Some disclosed techniques are directed to adaptively adjusting the impulse response in time domain (or equivalently the frequency response in frequency domain) of the post digital filter and the corresponding structure of ISI equalizer in different spectrum-narrowing operation scenarios.
Polarisation-independent coherent optical receiver
In a coherent optical receiver, a received signal and an oscillator-generated signal, having frequency difference such that the receiver operates under intradyne conditions, are made to beat in a 3×3 optical coupler. A polarizing beam-splitter splits one of the signals into components with orthogonal polarization which are applied to inputs of the coupler, which receives the other of the received or oscillator-generated signal. After photoelectric conversion, the signals are fed to analog processing devices generating an electrical signal representing the received signal that is fed to a low pass filter before being demodulated. The frequency difference between the signals and the passband of the filter are such that a component of the electrical signal, oscillating at a frequency depending on the frequency difference and having amplitude and phase depending on the instant state of polarization of the received signal, is suppressed. A method is also provided.
Spectral analysis using a spatial light modulator
According to an example, an optical transmission device may include a spatial light modulator having a plurality of cells, in which different wavelengths of a light beam are to impinge upon different groups of pixels along a dispersion direction. The device may also include a driver mechanism to modulate, at a first frequency, a first group of the plurality of cells upon which light having a first wavelength impinges to impress a first frequency fluctuation onto a property of an output light including the first wavelength and to modulate, at a second frequency, a second group of the plurality of cells upon which light having a second wavelength impinges to impress a second frequency fluctuation onto a property of an output light including the second wavelength, in which the second frequency modulation differs from the first frequency modulation.
High data rate optical transport network using 8-psk
Methods, systems, and devices are described for modulating data for optical transmissions and demodulating data from optical transmissions. During modulation, bits are mapped to symbols using an 8-ary modulation scheme. The modulation scheme may be based on 8 Phase Shift Keying (8-PSK), Dual Polarization 8-PSK, or 7-1 PSK for which one of the symbols is located at or near the origin of the constellation. Streams with the symbol-mapped bits are modulated onto a waveform in the digital domain that is converted into a waveform in the analog domain before is output for conversion to an optical signal. The streams may be filtered at baseband with at least one discrete pulse-shaping filter. During demodulation, pulse-shaped data received from an optical signal and comprising symbol-mapped bits based on the 8-ary modulation scheme is sampled. The sampled data is filtered with at least one discrete pulse-shaping filter, and then equalized and demodulated.
Electro-absorption modulator adaptive equalizer systems and methods
A system and method for adaptive equalization in a communication system. The system can include a modulator, a processor coupled to the modulator, and a memory coupled to the processor. The memory can store software instructions that, when executed by the processor, cause the processor to perform operations that can include generating, for each of one or more scan frequencies of interest, an optimal bias setting of the modulator. Data indicating a selection of a range of frequencies to be processed by the communication system can be received at the processor. The operations can include determining, responsive to the receiving, the optimal bias setting corresponding to the selected range of frequencies. A bias of the modulator can be adjusted based on the determined optimal bias setting, the adjusting providing adaptive equalization of the flatness response of the communication system.
Mitigating noise and OBI in RFoG networks
A system for communicating data signals over an optical transmission path combines forward signals onto a fiber that also carriers return signals. The system includes a return receiver for detecting an optical beat interference (OBI) event. Return signals are received by return receivers, one for each group of users. The fiber is provided to a splitter that distributes the forward optical receivers to the end users (RTx), which each comprise a receiver for the forward wavelength and a transmitter for the return wavelength. The transmitters provide return signals. When multiple transmitters are on at the same time, OBI events can take place when transmitter wavelengths coincide. When the return receiver detects an OBI event, it may signal the end user devices via a forward communication. The end user devices are responsive to the OBI detection signal to adjust a return wavelength to reduce or eliminate OBI.
Optical signal processing apparatus and decoding method for optical signal reception control device
The present invention provides an optical signal processing device and a decoding method for an optical signal reception control device. The optical signal processing device includes one of the following: a power control apparatus, where the power control apparatus is configured to control power-on and power-off of a power supply according to an optical signal, or, a clock apparatus, where the clock apparatus is configured to store time of opening and closing a door; or, a charging apparatus, where the charging apparatus is configured to charge an optical signal transmitting apparatus. The present invention can control power-on and power-off of a power supply automatically and save electric energy effectively.
Simulcast mesh dimmable illumination source
An LED illumination device is configured to receive coded messages by at least one of radio signals in free space, electrically conducted signals by wire, and light wave propagated signals in free space, process the coded messages, and transmit the coded messages by two or more of radio signals in free space, electrically conducted signals by wire, and light wave propagated signals in free space.
LED light global positioning and routing communication system
An LED light and communication system includes at least one optical transceiver, the optical transceiver including a light support and a processor. The light support has a plurality of light emitting diodes and at least one photodetector attached thereto. The processor is in communication with the light emitting diodes and the at least one photodetector, where the processor is constructed and arranged to illuminate at least one of the light emitting diodes to generate a light signal which in turn includes at least one embedded data packet. The at least one embedded data packet communicates global positioning system (GPS) location information.
Systems and methods for satellite communications using a space tolerant protocol
A method is provided that can include designating as a control node, a first communication node of a plurality of communication nodes associated with a satellite communications system. The method can include, designating as a listening node, a second communication node of the plurality of communication nodes. The listening node is responsive to instructions provided by the control node. The method includes receiving, at a tuning module, one or more input tuning factors, wherein the one or more input tuning factors can include at least a resource burden factor. Responsive to receiving the one or more input tuning factors, the method includes adjusting by the tuning module, one or more tunable output parameters. The method includes sending, from the control node to the listening node, instructions comprising one or more of the tunable output parameters, and executing the instructions at the listening node.
Satellite communication system and method of cancelling interference in the satellite communication system
A satellite communication system and a method of cancelling interference in the satellite communication system are disclosed. The method of cancelling interference in the satellite communication system may include receiving a signal by a central station from a terminal via a satellite transponder, estimating, from the signal, a nonlinear characteristic associated with a central station signal transmitted from the central station, and cancelling an interference signal from the signal using the estimated nonlinear characteristic.
Method for feeding back channel state information in wireless communication system and apparatus therefor
The present invention relates to a method for receiving a reference CSI configuration information and a following CSI configuration information which is configured to report a same RI (Rank Indicator) as the reference CSI configuration information, receiving a first precoding codebook subset information for the reference CSI configuration information and a second precoding codebook subset information for the following CSI configuration information, set of RIs according to the second precoding codebook subset information is same as set of RIs according to the first precoding codebook subset information, and transmitting CSI determined based on at least one of the first precoding codebook subset information and the second precoding codebook subset information.
Method and apparatus for transmitting uplink signals using multi-antenna
A method and apparatus for allowing a UE to transmit uplink signals using a MIMO scheme are disclosed. In order to maintain good Peak power to Average Power Ratio (PAPR) or Cubic Metric (CM) properties when the UE transmits uplink signals using the MIMO scheme, the UE uses a precoding scheme based on a precoding matrix established in a manner that one layer is transmitted to each antenna in specific rank transmission.
Apparatus and method for codebook search for multiple-input multiple-output (MIMO) system
A method for selecting a precoder from a codebook for a channel matrix H and an apparatus. The method includes determining, by a processor, a reference precoder V for the channel H and a phase rotation for V; for all codewords W from a codebook, determining, by the processor, phase rotations for W and phase distances based on differences between phases of elements of V and W; and selecting, by the processor, the codeword W with a minimum phase distance, wherein H has a size of NR×NT, NR is a number of receive antennas, NT is a number of transmit antennas, V has a size of NT×L, and L is a number of data layers transmitted simultaneously.
Method and apparatus for transmitting reference signal in wireless communication system supporting multiple antennas
The present invention relates to a method and an apparatus for transmitting a reference signal by a transmitting side in a wireless communication system supporting multiple antennas. Specifically, the present invention comprises a step of transmitting a first reference signal for a plurality of first domain antennas and a second reference signal for a plurality of second domain antennas, wherein the second reference signal is used for antennas included in the second domain antennas except for antennas included in the first domain antennas and a particular antenna port, and the particular antenna port is selected from antenna ports included in multiple antennas except for the first domain antennas and the second domain antennas.
Composite sounding for MIMO beamforming in a wireless home network
A WAP including: a sounding mode module, a sounding matrix generator, a sounding aggregator, a gain normalizer and a beamforming expansion module. The sounding mode module determines whether a number of communication streams supported by the WAP matches the number of streams contained in a sounding response from a station, and initiates a composite set of soundings when those capabilities do not match. The sounding matrix generator generates linearly independent spatial mapping matrices each associated with a corresponding one of the set of composite soundings and at least one reference SMM. The sounding aggregator aggregates partial sounding feedback matrices received from the targeted station node in response to the composite soundings. The gain normalizer normalizes the partial sounding feedback matrices utilizing the reference SMM. The beamforming expansion module expands the aggregated sounding feedback matrices into a full beamforming matrix for spatially mapping downlink communications.
Techniques for joint support of coordinated multipoint (CoMP) operations and carrier aggregation (CA)
Certain aspects of the present disclosure provide methods and apparatus for joint support of coordinated multipoint (CoMP) operations and carrier aggregation (CA). One method generally includes receiving signaling indicating a configuration, from a set of possible configurations, that defines how the UE is to communicate with one or more base stations (BSs) using coordinated multipoint (CoMP) operations on one or more component carriers (CCs) and communicating in accordance with the configuration.
Method and apparatus for supporting multi-user and single-user MIMO in a wireless communication system
Techniques for supporting distributed multiple-input multiple-output (MIMO) transmissions are described. In one design, a user equipment (UE) determines channel estimates for multiple cells and reports the channel estimates. The UE thereafter receives a data transmission sent by the multiple cells to the UE based on the channel estimates. The data transmission may include at least one data stream, and each data stream may be sent by one cell or the multiple cells to the UE. In another design, a UE determines first and second channel estimates for first and second cells, respectively, and reports the channel estimates. The UE then receives a first data transmission sent by the first cell to the UE based on the first channel estimate. The UE also receives a second data transmission sent by the second cell to another UE and steered away from the UE based on the second channel estimate.
Wireless power transfer system that performs power transfer from determined power transmission device to power receiving device, power transmission device, power receiving device, and control method of wireless power transfer system
A wireless power transfer system includes a power receiving device and a plurality of power transmission devices that perform power transfer to the power receiving device. The power receiving device transmits request-power to the power transmission device, the request-power being power the power receiving device requests to be supplied with. The power transmission device, when receiving the request-power from the power receiving device, generates determination reference information based on the received request-power, the determination reference information being information to be used as a determination reference when the power receiving device selects the power transmission device, and transmits the generated determination reference information to the power receiving device. The power receiving device receives the determination reference information, selects the power transmission device from which the power receiving device is to receive power supply, and transmits a power transmission start request to the selected power transmission device.
Input/output signal processing circuit and input/output signal processing method
The present invention discloses an input/output (I/O) signal processing circuit and processing method. The I/O signal processing circuit includes a level adjustable I/O circuit and an adjustment circuit. The I/O signal processing circuit includes an output driver and/or an input comparator. The output driver transmits an output signal via a signal transmission line according to an output data. The output driver has an adjustable high operation voltage level and an adjustable low operation voltage level, which determine a high level and a low level of the output signal, respectively. The input comparator receives an input signal via the signal transmission line and comparing the input signal with an adjustable reference voltage, so as to generate an input data. The adjustment circuit generates an adjustment signal according to voltage drop related information, to correspondingly adjust the adjustable high and low operation voltage level and/or the adjustable reference voltage.
Remote controlled (RC) air based communication
Remote Controlled (RC) air based communication systems and methods for aircraft such as airplanes, helicopters, Unmanned Vehicles (UV), balloons and other objects in air based devices. Air based communication devices receive modulated signals from GPS satellites, or other satellites or from land based or in or on water or air based transmitters and demodulate and process these signals into location finding information. A photo camera or video camera generated signal is processed with location finding information and the camera generated signal with the location finding information is processed in an OFDM processor or in a spread spectrum processor. The spread spectrum processor provides cross-correlated in-phase and quadrature phase processed signals. The OFDM processed and the cross-correlated processed signals are modulated and transmitted. A received RC signal and/or a motion detector is used for control of operation of air based devices. Infrared transmitters, smoke and heat/sensor devices are implemented in the airborne devices. The airborne device, in a repeater mode receives and demodulate a first OFDM modulated signal into an OFDM baseband signal. The OFDM baseband signal is subsequently modulated into a second OFDM signal and is transmitted from the airborne device. The communications and control of air based devices is in land based cellular systems (e.g. WCDMA, CDMA, GSM, 3G, 4G and 5G), wireless mobile internet networks, Bluetooth and satellite systems.
Housing mounting mechanism for portable electronic device
A housing mounting mechanism for a portable electronic device includes a body, a housing, a mounting member, and a latching member. The housing is detachably mounted to the body. The mounting member is connected to the housing and has at least one mounting portion. The latching member is movably mounted to the body and has at least one latching portion. The at least one latching portion can lock the at least one mounting portion of the mounting member when the latching member is at a first position relative to the body. The at least one mounting portion of the mounting member can disengage from the at least one latching portion after the latching member is displaced to a second position from the first position.
Dual-mode communication devices and methods
Methods, systems, and techniques for dual-mode communication are provided. Example embodiments provide an enhanced mobile device that includes a low latency transceiver and a high latency transceiver. In some cases, the enhanced mobile device is operated by a customer and configured to interact with a point of service computing system via both the low and high latency transceivers to facilitate a customer interaction at a point of service location. For example, the enhanced mobile device may transmit via its high latency transceiver an indication that it is en route to the point of service location. Upon arrival at the point of service location, the enhanced mobile device may transmit via its low latency transceiver an indication that the customer has arrived at the point of service location. The point of service computing system may then provide a service based on the information received from the enhanced mobile device.
Cases having selectable RF shielding
Device cases with selectable RF shielding are described. Some implementations can include a case for an electronic device. The case can include selectable radio frequency (RF) shielding, such as a Faraday cage. The shielding can be selectable via a mechanically activated switch (e.g., slidable or rotatable), or an electrically activated switch.
Mobile wireless communications device providing enhanced interference mitigation from wireline transmitter and related methods
A mobile wireless communications device may include a housing, a wireless receiver carried by the housing and configured to receive communication signals over a wireless frequency range, a wireline transmitter carried by the housing and configured to transmit communication signals overlapping in frequency with the wireless frequency range, and a controller carried by the housing and coupled with the wireless receiver and the wireline transmitter. The controller may be configured to determine when the wireless receiver is to begin receiving and, based thereon, switch the wireline transmitter to a suspended communication mode during which transmission is disabled. The controller may also be configured to determine when the wireless receiver has completed receiving and, based thereon, switch the wireline transmitter to a normal communication mode in which transmission is enabled.
Distance to VSWR fault measurement
The present invention addresses apparatuses, methods and computer program product for providing improved distance to fault measurement for voltage standing wave ratio (VSWR) on antenna line in networks. An embodiment of the present invention comprises the steps of transmitting a signal to a line to be tested, capturing a forward signal of the signal, capturing a reverse signal of the signal, separating the reflection of the signal in time domain via cross correlation of the forward signal and the reverse signal, and detecting a distance to fault in the line by searching and processing maximum peak position of the captured and separated signals.
Integrated power supply and modulator for radio frequency power amplifiers
Described embodiments provide an integrated power supply and modulator system. The system includes a magnetic regulation stage, a switched-capacitor voltage balancer stage, and at least one output switching stage. The switched-capacitor voltage balancer stage is coupled to an output of the magnetic regulation stage, and maintains a substantially ratiometric set of voltages with respect to a reference potential. The magnetic regulation stage includes an inductor and at least two switches to selectively couple the inductor to two or more of (a) an input of the magnetic regulation stage, (b) a first voltage node of the switched-capacitor voltage balancer stage, and (c) a second voltage node of the switched-capacitor voltage balancer stage. The output switching stage selectively couples at least two voltages from the switched-capacitor voltage balancer stage to an output of the system in response to control signals. The system may include startup circuitry, feedback/feedforward circuitry, and control circuitry.
Systems and methods for an iterative decoding scheme
System and methods described herein includes a method for iterative decoding. The method includes instantiating an iterative decoding procedure to decode a codeword. At each iteration of the iterative decoding procedure, the method further includes retrieving information relating to a plurality of current decoding variables at a current iteration, determining a first current decoding variable to be skipped for the current iteration based on the information, and processing a second decoding variable without processing the first decoding variable to update related decoding variables from the plurality of current decoding variables.
Apparatus for generating digital thermometer codes
Described is an apparatus for generating a thermometer code, the apparatus comprises: a 2-bit bi-directional shift register; and more than two multiplexers operable to form storage units and coupled together in a chain to generate the thermometer code, the more than two multiplexers controlled by outputs of the 2-bit bi-directional shift register.
ASAR ADC circuit and conversion method thereof
The present disclosure provides asynchronous successive approximation register analog-to-digital converter (ASAR ADC) circuits and signal conversion method thereof. An exemplary ASAR AC circuit includes a sample/hold circuit configured to input a first analog signal and output a second analog signal; a digital-to-analog converter circuit configured to output a third analog signal; a first voltage comparison circuit configured to respond to a valid level of a latch signal, and output a first logic level and a second logic level; a first logic circuit configured to respond to a valid level of a flag signal, and identify a comparison result of the first voltage comparison circuit and output the first digit signal; and a pulse generation circuit configured to generate the latch signal and the flag signal with a generation time of the valid levels independently from the first logic level and the second logic level.
Successive approximation register analog-to-digital converter and semiconductor device including the same
A successive approximation register (SAR) analog-to-digital converter (ADC) includes a ring oscillator configured to determine a frequency based on a sampling clock signal and a first control code, and generate an output clock signal having the determined frequency. The SAR ADC further includes a controller configured to generate the first control code based on a count value indicating a number of times of toggling the output clock signal.
Dynamic quantizers having multiple reset levels
Various implementations are presented herein that improve the performance of dynamic quantizers over process, voltage and temperature (“PVT”) and input common mode (Vcm) variations. This can be accomplished by separating and then varying the voltage supply to the reset devices connected to the input devices of the quantizer while leaving the supply to the other parts of the quantizer unchanged. The timing performance of the quantizer can be improved (reduced clock-to-q) by lowering the voltage supply to the reset devices. The input referred RMS noise and offset voltage of the circuit can be improved (reduced) by raising the voltage supply to the reset devices. Similarly, increases in Vcm due to process and voltage scaling can be mitigated by raising the voltage supply to the reset devices. Control systems are also provided herein to control the voltage supply to the reset devices to accomplish these and other objectives.
Atomic cell, quantum interference device, atomic oscillator, electronic device and moving object
A gas cell includes alkali metal enclosed within an internal space configured by a trunk portion and window portions. An interior wall surface of the trunk portion includes a holding portion having a contact angle with liquid alkali metal of less than 90°.
A phase detector including a first latch and a control circuit is provided. The first latch generates a first output signal and a second output signal in response to a phase difference between a first input signal and a second input signal. Each of the first and second output signals includes first phase information and second phase information of the phase difference. The control circuit generates a phase indicating signal in response to the first phase information of the phase difference. The phase indicating signal indicates a relative position between the first input signal and the second input signal.
Nanomagnetic network structures and a method of reconfigurable operation based on magnetization dynamics
A nanomagnetic structure and a method of fabricating a nanomagnetic structure. The nanomagnetic comprises two or more nanomagnetic material elements, each nanomagnetic material element having a respective predetermined geometric shape such that the nanomagnetic structure exhibits different stable ground states initializable by magnetic fields applied across the nanomagnetic structure in respective different directions; wherein the nanomagnetic material elements are disposed relative to each other such that the magnetic structure exhibits a difference in effective internal magnetic field strength between the different stable ground states. Advantageously, this variation in the internal magnetic field strength is the key for distinct dynamic response associated with the different magnetic ground states. Reconfigurable operation has been shown based on this magnetization dynamics in example embodiments.
Multiplexer-memory cell circuit, layout thereof and method of manufacturing same
An integrated circuit includes a field programmable gate array including: (i) a plurality of memory cells (e.g., static memory cells) to store data, wherein each memory cell includes a first output, (ii) a multiplexer including inputs, an output and input selects, (iii) a plurality of poly-silicon conductors, each poly-silicon conductor is disposed in the substrate and connected to the first output of an associated memory cell, (iv) poly-silicon extensions, each poly-silicon extension is (a) connected to an associated poly-silicon conductor and (b) coupled to an associated input select of the multiplexer, wherein the poly-silicon extensions are disposed in the substrate and at least partially under a metal conductor in the field programmable gate array.
Protection against tamper using in-rush current
A method for protecting an integrated circuit device against security violations includes monitoring a component of the integrated circuit device for security violations. A security violation of the component of the integrated circuit device is then identified. The component of the integrated circuit device is then internally destroyed in response to the identified security violation by providing current to the component beyond a tolerable limit of the component.
To provide a highly reliable and low-power-consumption semiconductor device functioning as a programmable logic device. A monitor circuit is provided to monitor a change in the potential of a configuration memory in which a transistor is turned off to hold charge and a potential corresponding to the charge is stored as configuration data. The reset of the configuration data is controlled in accordance with the potential change. With such a structure, the configuration memory can be reconfigured before the configuration data is lost, resulting in improved reliability of the semiconductor device. In addition, reconfiguration can be performed every time data is lost. Accordingly, power consumption can be reduced as compared with the structure where reconfiguration is performed periodically.
An interface circuit includes at least one semiconductor logic gate and a latch circuit. The semiconductor logic gate configured to receive an input signal having a signal level changeable and outputs a logic gate signal which has a signal level becoming a low level when a signal level of the input signal is not less than a logic threshold value, alternatively has a signal level becoming a high level when a signal level of the input signal is less than the logic threshold value. The latch circuit fetches the logic gate signal as a first latch signal, while fetching a signal which is converted from the input signal and has a signal level varying between a second voltage and the ground potential, alternatively, the input signal as a second latch signal, to output the first interface output signal and the second interface output signal.
Low current start up including power switch
The present document relates to a start-up circuit comprising a power switch wherein a circuit charges a supply voltage capacitor. The capacitor provides a supply voltage to a power switch; the power switch forms a switched power converter with a power converter network. The circuit comprises a source and gate interface for coupling the circuit to the power switch; a capacitor interface couples the circuit to the supply voltage capacitor; a start-up path couples the gate interface to the capacitor interface; wherein the startup path provides a voltage at the gate interface which is at or above a threshold voltage of the power switch; and a charging path couples the source interface to the capacitor interface; wherein the charging path provides a charging current to the capacitor interface, when the power switch is in on-state.
Apparatus and method for reducing di/dt during power wake-up
Described is an apparatus which comprises: a power gate transistor coupled to an ungated power supply node and a gated power supply node, the power gate transistor having a gate terminal; a resistive device; a first transistor coupled in series with the resistive device together forming a pair, the first transistor also coupled to the gate terminal of the power gate transistor; a capacitive device coupled in parallel to the series coupled pair of the first transistor and resistive device; and a second transistor coupled to the gate terminal of the power gate transistor and the ungated power supply node.
Solid-state circuit breakers and related circuits
Various solid-state circuit breakers and related circuits are presented herein. These include, among other things, a common node bidirectional solid-state circuit breaker (BDSSCB) having diodes connected between terminals of its switches, a shunt voltage actuated driver (SVAD) circuit for use with a BDSSCB, a SVAD circuit for use with a unidirectional solid-state circuit breaker (UDSSCB), a bipolar current actuated driver (BCAD) for use with a BDSSCB, and a multi-directional solid-state circuit breaker (MDSSCB).
Semiconductor integrated circuit, latch circuit, and flip-flop circuit
A semiconductor integrated circuit connected between a first node and a second node includes first to fourth transistors. When a signal at the second node changes, the fourth transistor is turned on, and a potential obtained by shifting a third potential by the threshold of the fourth transistor is applied to the gate of the second transistor.
Rail-to-rail comparator with shared active load
A rail-to-rail comparator circuit includes NMOS and PMOS differential input stages with associated loads that are coupled to a shared-load stage. The shared-load stage is coupled to an output stage that includes two active devices. By sharing the load stage between the two input stages, the comparator has a relatively small circuit area, low power draw, and low propagation delay with rail-to-rail input common-mode voltage range.
Low-area low clock-power flip-flop
In one example, the apparatus includes a first AND gate, a second AND gate, a first NOR gate, a second NOR gate, a third NOR gate, a first inverter, and a second inverter. The first AND gate output is coupled to the first NOR gate first input. The first NOR gate output is coupled to the second NOR gate first input. The second NOR gate output is coupled to the first NOR gate second input. The first inverter output is coupled to the first AND gate second input and the second NOR gate second input. The second AND gate first input is coupled to the first inverter output. The third NOR gate first input is coupled to the second NOR gate output. The third NOR gate second input is coupled to the second AND gate output. The second inverter output is coupled to the second AND gate second input.
Methods and apparatuses for driving a node to a pumped voltage
Methods and apparatuses are disclosed for driving a node to one or more elevated voltages. One example apparatus includes a first driver circuit configured to drive a node to a first voltage, and a second driver circuit configured to drive the node to a pumped voltage after the node reaches a voltage threshold. The apparatus also includes a controller circuit configured to disable the first driver circuit and enable the second driver circuit responsive to the node reaching the voltage threshold.
Transformer of the balanced-unbalanced type
A transformer of the balanced-unbalanced type includes a primary inductive circuit and a secondary inductive circuit housed inside an additional inductive winding connected in parallel to the terminals of the secondary circuit and inductively coupled with the primary circuit and the secondary circuit.
Thin film surface mount components
Surface mount components and related methods involve thin film circuits between first and second insulating substrates. The thin film circuits may include passive components, including resistors, capacitors, inductors, arrays of such components, networks, or filters of multiple passive components. Such thin film circuit(s) can be sandwiched between first and second insulating substrates with internal conductive pads which are exposed to the outside of the surface mount component and electrically connected to external terminations. External terminations may include at least one layer of conductive polymer. Optional shield layers may protect the surface mount components from signal interference. A cover substrate may be formed with a plurality of conductive elements that are designed to generally align with the conductive pads such that conductive element portions are exposed in groups along surfaces of a device.
Wireless receiver having improved phase shifting schemes with reduced number of phase shifters
A wireless receiver includes an antenna receiving a right-handed circularly polarized (RHCP) signal and a left-handed circularly polarized (LHCP) signal, a first amplifier and a second amplifier coupled to the antenna, an intermediate summer coupled to the first and second amplifiers and providing a first intermediate signal, an intermediate subtractor coupled to the first and second amplifiers and providing a second intermediate signal. The wireless receiver also includes a V-signal summer providing a V-component output based on a sum of the first intermediate signal and the second intermediate signal, and an H-signal subtractor providing an H-component output based on a difference between the first intermediate signal and the second intermediate signal. The wireless receiver is configured to provide the V-component output and the H-component output without using a phase shifter.
Linear gain code interleaved automatic gain control circuit
An example automatic gain control (AGC) circuit includes a base current-gain circuit having a programmable source degeneration resistance responsive to first bits of an AGC code word. The AGC circuit further includes a programmable current-gain circuit, coupled between an input and an output of the base current-gain circuit, having a programmable current source responsive to second bits of the AGC code word. The AGC circuit further includes a bleeder circuit, coupled to the output of the base current-gain circuit, having a programmable current source responsive to logical complements of the second bits of the AGC code word. The AGC circuit further includes a load circuit coupled to the output of the base current-gain circuit.
Power amplifying circuit
A power amplifying circuit includes a switching circuit, an amplifier and a load. The switching circuit receives a first supply voltage and a second supply voltage. When the switching circuit is in a first operation mode, the first supply voltage is provided to a node. When the switching circuit is in a second operation mode, the second supply voltage is provided to the node. The amplifier receives a first input signal and a second input signal, and outputs a first output signal and a second output signal from a first output terminal and a second output signal, respectively. The load includes a first inductor and a second inductor. The first inductor is connected between the node and the first output terminal. The second inductor is connected between the node and the second output terminal.
Amplifier with gain adjustment resistor, feedback resistors and transistors and optical receiver including amplifier
An amplifier circuit includes: a first transistor and a second transistor of which collectors/drains are coupled to a first power-source via a first load-impedance-element and the first power-source via a second load-impedance-element, respectively; a gain-adjustment-resistance-element that is connected to an emitter/source of the first transistor and an emitter/source of the second transistor; a first current-source and a second current-source that are connected to the emitters/the sources of the first transistor and the second transistor respectively, and a second power-source; a third transistor and a fourth transistor of which collectors/drains are connected to the first power-source and bases/gates are connected to the first load-impedance-element and the second load-impedance-element, respectively; a first feedback-resistance-element that is connected to a base/gate of the first transistor and an emitter/source of the third transistor; and a second feedback-resistance-element that is connected to a base/gate of the second transistor and an emitter/source of the fourth transistor.
Signal output circuit
An object is to output output signal amplitude exceeding power supply voltage or output signal amplitude falling below ground voltage without requiring a charge pump circuit or the like to generate positive or negative power supply voltage for an operational amplifier. The present invention provides a signal output circuit comprising an operational amplifier including: an amplification stage configured to amplify differential input voltage; and an output stage configured to amplify an input signal amplified by the amplification stage and output the input signal as an output signal, wherein the output stage is a switched capacitor circuit which includes switches and a capacitor configured to sample differential voltage between input voltage outputted from the amplification stage and voltage other than the input voltage and which transfers the differential voltage sampled by the capacitor by switching of the switches based on the input voltage.
Amplifier devices with envelope signal shaping for gate bias modulation
The embodiments described herein include amplifiers configured for use in radio frequency (RF) applications. In accordance with these embodiments, the amplifiers are implemented to generate a shaped envelope signal, and to apply the shaped envelope signal to transistor gate(s) of the amplifier to provide gate bias modulation. So configured, the shaped envelope signal may facilitate high linearity in the amplifier.
Tunable matching network with phase-switched elements
Described is a phase-switched tunable impedance matching network (PS-TMN). The PS-TMN has an input that can be coupled to a source and an output that can be coupled to a load. The PS-TMN includes one or more phase-switched reactive elements and a controller. The controller provides a control signal to each of the one or more phase-switched reactive elements. In response to one or more control signals provided thereto, each phase-switched reactive element provides a corresponding selected reactance value.
Variable frequency RC oscillator
An oscillator circuit having a programmable output frequency may include a first delay section having a negative gain and a variable delay that is set by a control signal provided to the first delay section. A second delay section having a negative gain and a fixed delay may be connected in series with the first delay section. The oscillator circuit may include an output comprising the output of the second delay section having a frequency that is dependent on the delay of the first delay section and the delay of second delay section.
Control system for an electric motor based on a pulsed control signal
The present invention concerns a control system for an electric motor, wherein an operating mode with predetermined value assignments is selected for a parameter set for controlling an electric motor and the pulse frequency of a control signal for the electric motor is set in accordance with the selected operating mode in order thereby to signal to the electric motor the selected value assignments for the parameter set.
Motor control apparatus
A motor control apparatus controlling current feeding and a rotational direction of a motor includes: four bridge-circuit switches between a high and low potential lines; two current feeding line switches connected through the motor between a first and second nodes in series to arrange two parasitic diodes facing each other; a pull-up resistor between the high potential line and a third node; a pull-down resistor between the low potential line and a fourth node to interpose the motor between the third and fourth nodes; a protective diode blocking current; and a fault diagnostic device having: a driver turning on or off the switches; and a voltage determinator determining suitability of a first and second voltages and performing initial fault diagnosis for at least one of the switches.
System and method for detecting loss of input phase by sensing before power rectifier
A system for detecting a decrease in or loss of an input phase to a motor. A power rectifier rectifies and combines three input voltages to produce an output voltage to power the motor. A PFC circuit manages the power flowing to the motor. A sensing circuit located between the power rectifier and the PFC senses a voltage level of the power rectifier's output voltage. Alternatively, a sensing rectifier is connected before the power rectifier, and the sensing circuit senses the voltage level of the sensing rectifier's output voltage. A microprocessor compares the sensed voltage level to a threshold voltage level which is indicative of the decrease in or loss of one of the three input voltages, and if the former drops below the latter, then the microprocessor sends a signal to either shut off the motor or cause the PFC circuit to reduce the power flowing to the motor.
Motor drive device
When a control device determines, based on a sampling number in one period of a target modulation factor waveform, that the sampling number is less than a predetermined value in a case where a two-phase modulation scheme is selected and the target rotation number increases, the control device switches a modulation scheme from the two-phase modulation scheme to a three-phase modulation scheme.
Inverter control apparatus and inverter apparatus
In an inverter control apparatus, a phase current calculation section calculates each of phase currents flowing into a motor by using measurement results of a current sensor, and a voltage command generation section calculates three-phase voltage commands by using each of the estimated phase currents. A command modulation section compares the phase voltage commands with each other, to specify a full-on phase or a full-off phase on the basis of the comparison result and then to set the voltage command of the specified phase to a full-on voltage or a full-off voltage, and offsets the voltage commands of the other two phases according to the full-on voltage or the full-off voltage to modulate the voltage commands into voltage commands allowing the line voltage between the other two phases to be kept constant. A PWM signal generation section generates PWM signals by comparing, according to a predetermined rule set in advance, three carrier waves generated by a carrier wave generation section with each of the phase voltage commands modulated by the command modulation section. Accordingly, each of the phase currents can be calculated from a DC input current, so that the efficiency can be improved.
Power convertor, controller, and method for changing carrier frequency
A power convertor includes a power conversion unit, a PWM controller, and a frequency changer. The power conversion unit includes a plurality of switching elements. The PWM controller is configured to perform PWM control of the plurality of switching elements. The frequency changer is configured to change a carrier frequency in the PWM control. The frequency changer includes an outputter, an integrator, and a frequency determiner. The outputter is configured to output a control value in accordance with a control deviation with respect to a control target. The integrator is configured to integrate the control value output from the outputter. The frequency determiner is configured to determine the carrier frequency based on an integral value obtained by the integrator.
Multigroup, multiphase driving system and driving method for rotary electric machine
A multigroup, multiphase driving system includes a power converter that converts direct current power into alternating current power and vice versa, a direct current power supply connected to a direct current side of the power converter to be charged with and discharge direct current power, and a rotary electric machine connected to an alternating current side of the power converter and including a plurality of groups of multiphase armature windings, and further including a determination unit that determines the number of groups to be used to drive the rotary electric machine on the basis of a rotation speed of the rotary electric machine, a current flowing through the rotary electric machine, a direct current power supply voltage of the direct current power supply, and a carrier frequency of the power converter, the multigroup, multiphase driving system overall loss in the system can be reduced.
Method for controlling operating speed and torque of electric motor
Systems and methods for controlling the operating speed and the torque of an electric motor using an operational model are described. An operational model for the electric motor, including a plot of engine performance parameters, is used for reference, and a most efficient output path, which may pass through an optimal operation region in the operational model, is selected. The most efficient output path may be determined, for example, according to locations of a current output state and a to-be-reached target state in the operational model, enabling the operating state of the motor to reach the target state from the current operating state. By selecting a more efficient output path, the operating efficiency of the motor may be optimized, the life of a battery improved and/or the operating mileage of the vehicle may be increased, without significantly reducing the driving experience.
Drive control apparatus and fuel pump using the same
A microcomputer operates as a positioning part positions a rotor at a control start position, which is a position of the rotor relative to a stator to be able to start controlling driving of a brushless motor, by supplying a current to a winding set a number of times “n” (n is an integer equal to two or more) before starting to control driving of the brushless motor. The microcomputer, operating as the positioning part, controls electric power supplied to the winding set so that the rotor rotates in the same direction at each of “n” times of power supply to the winding set, that is, at each of “n−1” times of switchovers of power supply to the winding set.
Paper-base flexible power-generation apparatus, and manufacturing method thereof
A paper-base flexible power-generation apparatus, and a manufacturing method thereof. The flexible power-generation apparatus comprises: a first assembly (1) formed by a paper-base insulation layer (11) and a first metal conductive layer (12) deposited on the surface of the paper-base insulation layer, and a second assembly (2) formed by a paper-base insulation layer (21), a second metal conductive layer (22) deposited on the surface of the paper-base insulation layer, and an electret material layer (23) coating on the surface of the second metal conductive layer. The two edges of the two assemblies are each provided with an electrode (13, 24) and the electrodes are connected through a packaging process. The first metal conductive layer is opposite to and spaced from the electret material layer. The flexible power-generation apparatus has a low cost, is easy to manufacture, has high output power, and is especially suitable for being integrated with other flexible electronic devices.
Power conversion device
A power conversion device (1) of the present invention includes a power module (4) for converting direct current electricity to alternating current electricity, first and second power supply buses (5, 6) connecting input terminals (12, 13) and the power module (4), and a metal casing (7) for housing the first and second power supply buses (5, 6) and the power module (4). The capacitive coupling between the first power supply bus (5) and the metal casing (7) and the capacitive coupling between the second power supply bus (6) and the metal casing (7) are substantially matched. Thus, radiation noise is reduced by reducing the propagation of switching noise to the metal casing.
AC/DC/AC conversion device with reduced switching noise
A power conversion device includes a first detection circuit that acquires input information about an AC voltage and/or an alternating current which are inputted to the power conversion device from an AC power supply, a rectifier circuit, an inverter circuit including a switch, and a control circuit that generates a pulse signal for the switch while the control circuit (A) determines, based on the input information, whether the rectifier circuit is in a state in which the rectifier circuit allows switching noise to propagate from the switch to the AC power supply and (B) changes a frequency of the pulse signal with time at least in a period in which the rectifier circuit is in the state.
Three phase to single phase power conversion device with reduced wiring between condensers and switches
A power conversion apparatus is for converting polyphase ac power directly to ac power. A conversion circuit includes a plurality of first switching devices 311, 313, 315 and a plurality of second switching devices 312, 314, 316 connected, respectively, with the phases R, S, T of the polyphase ac power, and configured to enable electrical switching operation in both directions. There are provided a plurality of condensers 821˜826 connected with the conversion circuit. At least one of the condensers is provided, for each of the first switching devices and the second switching devices, between two of the phases of the polyphase ac power. It is possible to reduce a wiring distance between the condenser and the switching devices.
Isolated fly-buck converter, switched mode power supply, and method of measuring a voltage on a secondary side of an isolated fly-buck converter
An isolated fly-buck converter provided for converting an input voltage (Vin) to an output voltage (VS) comprises (i) on a primary side, a primary winding (X1) and a non-isolated buck (CP) connected in series, and a pair of switches (Q1, Q2), wherein the switches are switchable between a forward phase, in which the primary winding and the non-isolated buck are connected to the input voltage, and a fly-buck phase, in which the primary winding and the non-isolated buck are disconnected from the input voltage and are connected to one another in a closed circuit; and (ii) on a secondary side, a secondary winding (X2) coupled to the primary winding, and a first capacitive element (CS) connected over the secondary winding and a first rectifying element (D1) connected to the secondary winding to prevent current from being flown through the secondary winding during the forward phase, wherein the output voltage is achieved as the voltage over the first capacitive element. A supplementary circuitry is provided at the secondary side by aid of which the input voltage can be measured on the secondary side, the supplementary circuitry comprising a second capacitive element (CF) and a second rectifying element (D2) connected in series, wherein the supplementary circuitry is connected over the second wiring such that the second rectifying element prevents current from being flown through the supplementary circuitry during the fly-buck phase, wherein the sum of the voltage over the second capacitive element and the output voltage is indicative of the input voltage.
Power supplies having multi-tap voltage attenuators and methods of power supply assembly
A printed circuit board of a power supply has a multi-tap voltage attenuator mounted thereon that may provide a selectable plurality of attenuated voltages based on a received voltage. A power supply may include two or more of the same printed circuit boards to attenuate different input and output power supply voltages to one or more desired lower voltages. The attenuated voltages may be input to, e.g., a controller of the power supply to monitor and, when necessary, adjust one or more parameters of the output power supply voltage. The selectable plurality of attenuated voltages allows substantially identical printed circuit boards to be used in the same and/or different power supplies for attenuating different voltages. Methods of assembling power supplies are also provided, as are other aspects.
Flyback power converter and controller and driver thereof
The present invention provides a flyback power converter and a control circuit thereof. The flyback power converter includes a transformer, a power switch, a driver, a synchronous rectification (SR) switch, a controller, and a signal coupler circuit. The transformer has a primary winding and a secondary winding. The power switch controls the conduction time of the primary winding; and the SR switch controls the conduction time of the secondary winding. The controller controls the SR switch and generates an ON pulse signal and an OFF pulse signal in a normal operation mode. When an output voltage reaches a lower limit voltage, the flyback power converter operates in the normal operation mode. The driver generates a switching signal according to the ON pulse signal and the OFF pulse signal in the normal operation mode, to determine a start conduction time point and an end conduction time point of the primary winding.
AC-DC converter with output power suppression
A power conversion apparatus for converting AC power supplied from an AC power source to DC power includes an AC-DC conversion circuit connected with the AC power source at an input end thereof for converting the AC power to DC power, a DC-DC conversion circuit connected with an output end of the AC-DC conversion circuit at an input end thereof for converting DC voltage level of the DC power generated by the AC-DC conversion circuit, a smoothing capacitor parallel connected to the output end of the AC-DC conversion circuit and the input end of the DC-DC conversion circuit, a DC link voltage detector for detecting a voltage of the smoothing capacitor as a DC link voltage, and a control unit for controlling operation of the DC-DC conversion circuit. The control unit suppresses an output power of the DC-DC conversion circuit, if the DC link voltage is smaller than a predetermined value.
A power converter that can be made compact and lightweight is provided. The power converter includes a control circuit power supply, a power semiconductor module that includes power conversion elements, a control circuit board that operates with power from the control circuit power supply and controls the power conversion elements, and a capacitor connected to the power conversion elements. In the power converter, the control circuit power supply charges the capacitor through the control circuit board. With this configuration, hot swapping of the power converter from the converter system can be performed. A boosting circuit may boost voltage of the control circuit power supply to charge the capacitor.
Power converter circuit and power limit control circuit thereof
A power converter circuit includes a transformer for converting a primary side voltage to a secondary side voltage and generating an output current. A power limit control unit senses the secondary side voltage to obtain a waveform feature of the primary side voltage, and decides a target of the output current according to the waveform feature of the primary side voltage. When the primary side voltage drops to a threshold, the output current is reduced.
Interleaved switching power supply and control method for the same
A control circuit for an interleaved switching power supply having a plurality of parallel coupled power stage circuits, can include: a feedback circuit that receives an output voltage of the interleaved switching power supply, and generates an output voltage feedback signal; a ripple generator that receives a plurality of switching control signals, and generates an AC ripple signal having a frequency that is N times a switching frequency; an adder circuit that adds the output voltage feedback signal with the AC ripple signal, and generates a superposition signal; a comparison circuit that receives the superposition signal and a reference voltage, and generates a comparison signal; and a frequency divider circuit that divides the comparison signal into a plurality of turn on control signals configured to control turn on of a plurality of main power switches in the plurality of power stage circuits.
Switching power converter control
A switching power converter with good stability and transient response is presented. There is provided a controller for a switching power converter of the type comprising one or more power switches. The controller contains a pulse width modulation comparator arranged to output a digital control signal to control the power switches of the switching power converter. A first input of the pulse width modulation comparator is derived from an output voltage of the switching power converter via a first feedback path. A second input of the pulse width modulation comparator is derived from the output voltage of the switching power converter via a second feedback path. One of the feedback paths has a signal extractor and a differential amplifier arranged to filter the output voltage and to provide good ground noise rejection.
Multi-threshold panic comparators for multi-phase buck converter phase shedding control
A control circuit included within a multi-phase switched-mode converter is configured for adjusting operational signals for adding power stages of the multi-phase switched-mode converter to dynamically respond to transient changes in load current for minimizing undershoot while avoiding overshoot of an output voltage of the multi-phase switched-mode converter. The control circuit has panic comparators configured such that each panic comparator has an input terminal connected to receive the output voltage for comparison with one of a plurality of reference voltages. A panic controller receives panic indicator signals from the panic comparators and determines which of the power stages are to be activated to match the transient change to the load current to prevent for minimizing undershoot and for preventing overshoot of the output voltage of the multi-phase switched-mode converter. The multi-phase switched-mode converter may operate in a continuous or discontinuous conduction mode.
Bidirectional DC converter comprising a core with permanent magnetization
The disclosure relates to a DC/DC converter including at least one clocked switching member and at least one inductor which is arranged between an input connection and an output connection of the DC/DC converter and is for intermediate storage of energy transferred by the DC/DC converter, wherein the inductor has a core with permanent magnetization. The DC/DC converter is configured for bidirectional operation, wherein, in a first energy transfer direction, the at least one switching member is switched in a first operating mode and, in a second energy transfer direction which is opposite to the first, the at least one switching member is switched in a second operating mode which deviates from the first. The disclosure also relates to an operating method for a DC/DC converter.
Current regulator circuit capable of reducing current ripple and method of reducing current ripple
The present invention discloses a current regulator circuit capable of reducing current ripple and a method of reducing current ripple. A power supply circuit generates a load current which originally has a current ripple. The load current is supplied to a load circuit. The current regulator circuit includes a regulator switch coupled to the load circuit, a current sense circuit for sensing the load current, and a control circuit. The control circuit controls the regulator switch to regulate a peak of a current sense signal minus an average of the current sense signal to a non-negative first predetermined value, or regulate the peak minus a valley of the current sense signal to a non-negative second predetermined value.
Startup circuit and power supply circuit
In a startup circuit, an error amplifier receives a target voltage in a startup period that is a terminal voltage with a shape of a slope generated by charging a capacitor for soft starting with a current from a constant current circuit. A detecting circuit monitors variation of the terminal voltage and blocks pulse from a logic circuit until the terminal voltage, which has been zero volts at the moment of startup, reaches a predetermined threshold value. In this period, the detecting circuit disables the function of the error amplifier. It is not until the terminal voltage VCS reaches the predetermined threshold value and the PWM pulse begins to be delivered that the error amplifier is enabled. At this moment, startup control begins based on the difference between the terminal voltage and the feedback signal. Therefore, the output voltage never rises abruptly.
Semiconductor device for controlling power-up sequences
A semiconductor device for controlling a power-up sequence is provided. The semiconductor device includes a plurality of chips. Each of the chips includes a power-up sequence controller configured to differently control generation sequences of internal source voltages. The power-up sequence controller changes the generation sequences of the internal source voltages in response to a power stabilization signal which is generated according to an external source voltage applied thereto in powering up the semiconductor device. Accordingly, a power-up current which is generated according to the internal source voltages being generated has a peak current distribution where a peak current may be equally distributed.
Start-up circuit and power device using the same
Disclosed herein are a start-up circuit capable of reducing a leakage current to reduce power consumption, and a power device using the same. The start-up circuit includes: a bias unit connected between a first power source and a second power source and allowing a first current to flow from the first power source to the second power source according to a predetermined voltage; a first start unit connected to the bias unit and driving a second current to apply the predetermined voltage to the bias unit, and stopping driving the second current when a voltage received from the second power source reaches a first voltage; and a second start unit connected to the bias unit and driving a third current, the predetermined voltage being applied to the bias unit by the third current, and stopping driving the third current upon receiving a stop signal.
Overvoltage snubber for grid tie inverter
An overvoltage snubber circuit configured to receive an alternating current (AC) overvoltage includes a first rectifier configured to convert the AC overvoltage to a direct current (DC) overvoltage, a chopper circuit electrically connected to the first rectifier and configured to break up the DC overvoltage and to output a variable DC voltage, and a resistor electrically connected to the chopper circuit and configured to dissipate energy of the variable DC voltage.
Power feed device of inductive charging device
A power feeding device of a non-contact charging device includes a power factor improvement circuit which converts an AC power supply to DC, and improves a power factor, a smoothing capacitor connected to an output end of the power factor improvement circuit, an inverter circuit which includes a plurality of switching elements, and generates an AC signal using a voltage of the smoothing capacitor as a power supply, a power feeding section which feeds power based on the AC signal to a power receiving device, and a control circuit which modulates at least one of a duty factor or an operation frequency of each of the switching elements of the inverter circuit in synchronization with the AC power supply.
Electric interference limitation
A method and an arrangement for limiting the interference to a common electric power network, generated by a power electronics device, e.g. a frequency converter, which power electronics device comprises of at least one switch type component being able to change the output voltage value at a predefined permissible switching frequency range. The method comprises scanning through the permissible switching frequency range, recording measured common mode current values as a function of the switching frequency, and setting the final switching frequency of the switch type component out of a value where a local maximum value of the common mode current has been recorded.
Multi-level power converter and a method for controlling a multi-level power converter
A multi-level power converter includes switching cells, each comprising switching devices and an energy storage element. The switching cells include switching cells of a first type and switching cells of a second type. The converter includes, for each phase, a first arm of serial connected switching cells and a second arm of serial connected switching cells, which first arm and second arm are connected in parallel. The first arm includes more switching cells of the first type than switching cells of the second type and the second arm includes more switching cells of the second type than switching cells of the first type. The switching cells of the first type have lower conduction loss than the switching cells of the second type. The converter is arranged so that a larger current flows through the first arm than the second arm.
Magnetic reluctance coupling having two rotors
A simplified magnetic reluctance coupling for coupling a first shaft to a second shaft, has a hollow cylindrical stator which has at least one magnet that is/are distributed around the circumference of the stator. The reluctance coupling also has a first rotor, which is supported in such a way that it can rotate within the stator, is connected to a first shaft in a rotationally fixed manner, and has a plurality of ferromagnetic first portions distributed around the circumference thereof and spatially separated from one another, as well as a second rotor, which is supported in such a way that it can rotate within the first rotor, is connected to the second shaft in a rotationally fixed manner, and has a plurality of ferromagnetic second portions distributed around the circumference thereof.
Linear motor and stage apparatus
A linear motor includes a magnet unit and a coil unit. The magnet unit includes two magnet arrays oppositely parallel and symmetrically located on a magnetic yoke: a first and a second magnet array. The coil unit is disposed in a magnetic gap between the two magnet arrays. In a spatial rectangular coordinate system defined by X, Y and Z axes, the coil unit includes a first and a second coil array arranged in a stacked manner in the Z-axis direction and staggered from each other by a distance of ΔP in the Y-axis direction. ΔP satisfies: when a control system charges the coil unit with a desired current, the coil unit generates a control force along the Y-axis direction, another control force along the Z-axis direction, and a moment about the X-axis direction, which may reduce a magnetic flux leakage and provide higher driving forces, making the linear motor generate required three degrees-of-freedom control force or control torque, and further improve vertical and horizontal magnetic fluxes in the magnet array.
Actuator and electrical appliance having fixed member with a coil and movable members having magnets
An actuator includes a fixed section that includes a spindle and a coil fixed to the spindle, a first movable section that includes a first magnet magnetized in an inside-outside direction and disposed to cover the outer peripheral surface of one end in an axial direction of the fixed section, that is mounted on the spindle in an elastically-maintained state, and that is movable in the axial direction, and a second movable section that includes a second magnet magnetized in the inside-outside direction and disposed to cover the outer peripheral surface of the other end in the axial direction of the fixed section, that is mounted on the spindle in an elastically-maintained state, and that is movable in the axial direction. When current flows in the coil, the first movable section and the second movable section move in the opposite directions.
Apparatus for winding and terminating dynamo electric machine cores
An apparatus terminates and winds coils of a core of a dynamo electric machine. The coils are formed from at least an electric wire and the core has a longitudinal axis. The apparatus includes a wire dispenser which translates and rotates with respect to a core to wind the coils. At least a stretch of wire extends from the coil; and the stretch of wire includes a portion for a termination connection to a termination structure of the core, such as a tang terminal. The core has a groove at an end to receive at least a wire in the path of the wire to terminate the coils. The apparatus comprises a wire deflector positioned adjacent the end of the core, where the groove is located, in order to intercept and align the wire with the groove. The apparatus avoids waste cut wire.
A motor includes a cylindrical rotor housing that contains a rotor, a brush holder mounted to an opening of the rotor housing, an end plate, having an electrically conductive part, which holds the brush holder in between the end plate and the rotor housing, and a grounding mechanism that realizes a ground connection to both a part of wiring led to a brush, provided in the brush holder, and the end plate. The grounding mechanism is provided in a region where the brush holder faces the end plate.
Rotor for rotating electrical machine, and rotating electrical machine provided with said rotor
Provided is a rotating electrical machine wherein it is possible to sufficiently cool an electronic device attached to a rotor by means of a liquid refrigerant. A rotor for a rotating electrical machine is provided with a shaft supported in a rotatable manner, a rotor core secured to the shaft, an electronic device disposed so as to rotate along with the shaft and the rotor core, a coil wound around the rotor core and connected to the electronic device, and a cooling structure for sequentially cooling the electronic device and the coil by means of a liquid refrigerant supplied from the shaft.
Energy-generating scooter-mounted apparatus
An energy-generating and mobile-charging apparatus is provided. The apparatus includes a housing including a shape featuring at least two lobes; and mounting brackets comprising at least two axles protruding from endplates of the housing for removably securing to a scooter and configured to be in contact with the front wheel of the scooter.
Standby generator including enclosure with intake opening in rear wall and exhaust opening in front wall
A standby generator includes an engine, an alternator, and an enclosure including a base and a number of walls extending from the base including a front wall, a rear wall, a left wall, and a right wall. The standby generator includes an intake opening configured to allow air to be drawn into the enclosure and an exhaust opening configured to allow heated air and exhaust gases to be expelled from the enclosure. The intake opening is provided on the rear wall and the exhaust opening is provided on the front wall.
Operator control device having an activation element with haptic feedback
An operator control device includes: an activation element configured to provide haptic feedback to an operator, the activation element having a touch-sensitive operator control surface, and the activation element being configured to be activatable by an input member of the operator, triggering an activation signal; a pivoting axis to which the activation element is mounted so as to be pivotable about the axis between a position of rest and a switching position; a rotationally mounted magnetically influenceable element; and an electromagnetic actuator configured to be actuatable by the activation signal so as to generate a magnetic field that moves the rotationally mounted magnetically influenceable element from an initial position into a pivoting position. The movement of the magnetically influenceable element results in a torque sufficient to move the activation element out of the position of rest into the switching position being applied directly or indirectly to the activation element.
Electric drive device for motor vehicle with oil sump formed therein for cooling and lubrication
The present invention relates to an electric drive device for driving of a motor vehicle comprising an electric motor arranged to be media supplied, the electric motor having a jacket surface and an essentially ring shaped cross section, wherein said media supply is arranged to be effected via a connection unit arranged in connection to the jacket surface of the electric motor. The invention also relates to a motor vehicle with an electric drive device.
High speed rotor connection support
A rotor connection support comprising a main connection ring configured to reduce the moment load on fastener locations (such as threaded fastener locations) by integrating stand-off posts into a high strength plate are discussed herein. These stand-offs may be configured to reduce the stresses on the high stress concentration/low cross section threads. Also, included is an improved wire routing and wire support configured to maximize the fatigue cycles of the main field lead wires.
Segment coil, stator including segment coil, and method of manufacturing segment coil
Segment coils arranged as aligned in slot portions of an annular core each include a straight portion and a pair of coil end portions, and have a tip end of the coil end portion of the pair of coil end portions as a tip end portion for joint including a joint surface for joint to another segment coil. The tip end portion for joint has the joint surface in parallel to a radial direction of the annular core when viewed in an axial direction of the annular core.
Open-type induction motor
There is provided an open-type induction motor, and more particularly, to an open type induction motor in which a rotor has a structure allowing air to flow therein, thus enhancing cooling efficiency of the rotor and a stator. The open-type induction motor includes: a stator including an iron stator core having a radial duct hole and a stator coil wound around the iron stator core; and a rotor disposed in a hollow of the stator so as to be rotatable by magnetism generated by the stator coil, and including a rotational shaft, a plurality of iron rotor cores stacked in an axial direction of the rotational shaft and coupled to the rotational shaft, a rotor coil coupled to the plurality of iron rotor cores, and duct plates stacked between the plurality of iron rotor cores and outwardly discharging air present at the inner side of the iron rotor cores.
Rotor for automotive alternator
A rotor includes a rotating shaft and a pair of first and second pole cores fixed on the rotating shaft. Each of the first and second pole cores includes a plurality of magnetic pole claws each having a root portion and a distal end. Each of the magnetic pole claws are configured to have a constant circumferential width at the root portion and taper from the root portion to the distal end. The magnetic pole claws of the first pole core are arranged alternately with those of the second pole core in a circumferential direction of the rotating shaft. Further, at least part of the magnetic pole claws of the first and second pole cores each have at least one chamfered portion formed at a circumferential end of the root portion of the magnetic pole claw so as to extend parallel to an axial direction of the rotating shaft.
Power reception device, power transmission device and wireless power transmission system
A mobile terminal device performs short range communication with an R/W device and receives power from a power transmission device. The mobile terminal device includes a coil antenna, an RFID IC circuit that performs short range communication with the outside via the coil antenna, a charging circuit that receives power received by the coil antenna which is capacitively coupled with a passive electrode and switches that switch to a short range communication state in which short range communication is performed via the coil antenna or a power reception state in which power is received via the coil antenna. Accordingly, a power reception device, a power transmission device and a wireless power transmission system are provided with which wireless power transmission can be realized without obstructing size reduction by giving a single member two functions.
Outlet control system
An outlet control system includes a transmitter-detector module having a plug and at least one outlet electrically connected to the plug, wherein the transmitter-detector module is configured to transmit a control signal in response to power being applied to the transmitter plug; and a receiver-switch module comprising a receiver plug and a receiver outlet electrically connected to the plug through a power switch, wherein the receiver-switch module is configured to receive the control signal from the transmitter-detector module and provide a signal to the power switch, such that said power switch is turned on to cause the receiver plug to be connected to the receiver outlet when power is being applied to the transmitter plug and is not turned on when the power is not being supplied to the transmitter plug.
Combined sensor/emergency light unit for a lighting system
The invention relates to an emergency light unit for a lighting system, in particular an emergency light unit designed according to the DALI standard, having the following features: The emergency light unit is connected to a bus (2) of the lighting system, to a rechargeable store (17) of electrical energy, and to emergency lighting means (16).
Cell controller and battery-monitoring device
A cell controller in a battery-monitoring device that monitors an assembled battery having a single cell group or a plurality of cell groups, each made up with a plurality of battery cells connected in series, includes: a startup terminal to which a first discharge resistor is connected and a startup voltage is applied; and a cell-balancing unit that executes cell balancing operation in order to adjust charge levels of the plurality of battery cells during a time period through which the startup voltage remains equal to or greater than a predetermined voltage, wherein: the startup voltage is applied for a predetermined length of time by a first timer unit that includes a passive element capable of accumulating electric energy and capable of discharging electric energy to the startup terminal.
Power control techniques for an electronic device
A portable electronic device, such as a fluid infusion device, obtains its operating power from a primary battery and a secondary battery. The primary battery may be a replaceable battery, and the secondary battery may be a rechargeable battery that can be charged with the primary battery under certain conditions. The device utilizes a power management scheme that transitions between the primary battery and/or the secondary battery to prolong the useful life of the primary battery. The device may also generate an intelligent battery life indicator that displays an accurate representation of the remaining life of the primary battery.
Battery with autonomous cell balancing
The disclosure relates to a device for balancing the battery cells of a battery including a plurality of pairs of battery cells. Each pair of battery cells is connected to a charge balancing unit which is configured to balance the cell voltages of the battery cells of the pair of battery cells with respect to each other. The device further includes a measuring device which is configured to output a current that is proportional to a minimal cell pair voltage to a plurality of resistors that are connected in series. Comparators are also provided, each of which is connected to a pole of a first battery cell of an assigned pair of battery cells and to a respective resistor on an input side and to a control electrode of a respective discharging unit on an output side.
Charging method, charging device, and electronic device for the same
A charging method includes a step of transmitting a start command to a charging device by an electronic device that pre-stores a charging authority therein when the electronic device determines the charging authority to be valid. The charging device is communicatively connected to the electronic device and includes an electrifying interface electrically connected to the electronic device. The start command causes the charging device to provide a power signal at the electrifying interface for charging the electronic device therethrough.
Panel mounted USB charger
A USB charging device that is designed for installation in wet and/or environments where corrosive moisture (e.g., saltwater) are prevalent including a water tight enclosure that includes a door that is biased to a closed position to form a water tight seal over a USB receptacle. The device includes an intermediate seal that seals between the USB receptacles and the power electronics situated in the lower portion of the device. The device is also provided such that the lower portion may be slid into the upper portion to form a mechanical interlock and form an electrical connection between the upper and lower portions while simultaneously forming a water tight seal.
Protective case with switch cover
A protective case can house a portable electronic device. The portable electronic device can have a switch (e.g., for switching an operational mode of the portable electronic device). The protective case can have a switch cover that engages the switch of the portable electronic device when the portable electronic device is in the protective case. The switch cover can be moved between positions corresponding to positions of the switch of the portable electronic device. As the switch cover is moved, the switch cover correspondingly moves the switch.
Safety concept for batteries
A safety device for a battery having battery cells that are configured to connect to poles of the battery via charging and isolating devices includes a discharge device. The discharge device is configured to connect in parallel to the battery cells. The discharge circuit can include at least one discharge resistor and an electronic valve. The electronic valve is configured to switch on and off. The discharge circuit can be configured to activate with a battery management system.
Charging station for electric candles and other devices
Various embodiments of charging stations are described that are configured to charge a plurality of electric lights or other devices. The charging stations can be multi-level to allow for charging of many candles while limiting the space required by the stations. The charging stations can be modular to allow them to be dynamically adapted to the varying needs of a user.
Current clamp circuit based on BCD technology
A current clamp circuit based on BCD technology includes a current-outputting circuit, an output-current-sensing circuit, and a current clamp circuit. The current-outputting circuit outputs a current to the output-current-sensing circuit. The output-current-sensing circuit senses the output current. When the current actually output by the current-outputting circuit is greater than a clamp current, the current clamp circuit outputs a current clamp feedback control signal to the current-outputting circuit, so as to clamp the output current clamp at a set value.
Power switch device
Power switch devices having an overload limit are provided. The overload limit may be adjusted based on an inductance coupled with the power switch device.
Multispur fieldbus isolator arrangement
The present invention provides for a multispur fieldbus isolator arrangement having a trunk (23) and in which each of a number of spur outlets (210) is connected to the trunk (23) by coupler isolators (24), where each coupler isolator (24) includes a removably mounted modular unit arranged for plug-in connection to the trunk (23) by means of a flameproof connection (29), and where a redundant coupler isolator can likewise be included for activation responsive to failure of a coupler isolator.
Overvoltage protection for a synchronous power rectifier
A circuit is described that includes a rectifier configured to rectify a DC output from an AC input, a sensing unit configured to detect a voltage level of the DC output, and a control unit configured to control the rectifier based on the voltage level of the DC output. The control unit is configured to control the rectifier output by at least controlling the rectifier to rectify the DC output from the AC input if the voltage level of the DC output does not indicate an overvoltage condition at the circuit. In addition, the control unit is configured to control the rectifier based on the voltage level of the DC output by at least controlling the rectifier to shunt current from the AC input if the voltage level of the DC output does indicate the overvoltage condition.
Power protection apparatus and method
A power-protection apparatus is provided. The apparatus includes an over-voltage protection unit for generating an over-voltage detection signal when the power supply of the load is over the upper limit of a predetermined voltage range; an under-voltage protection unit for generating an under-voltage detection signal when the power supply of the load is under the lower limit of the predetermined voltage range; a working-state detection unit for receiving a control signal and generating a working-state detection signal when the level time-change rate of the control signal is over a time-change rate threshold; and a power-control unit coupled to the over-voltage protection unit, the working-state detection unit and the under-voltage protection unit for controlling the on and off of the power supply according to the over-voltage detection signal, the under-voltage detection signal or the working-state detection signal.
Electrically insulated tethers for transmission line arresters
An electrical transmission system is described herein. The electrical transmission system can include at least one first phase high-voltage conductor. The electrical transmission system can also include an arrester coupled to the at least one first phase high-voltage conductor, where the arrester includes an arrester body and an isolator, where the arrester body includes a top end and a bottom end, where the top end of the arrester is coupled to the at least one first phase high-voltage conductor, and where the bottom end of the arrester body is coupled to the isolator. The electrical transmission system can further include a ground conductor coupled to a bottom end of the isolator of the arrester. The electrical transmission system can also include a tether coupled to the ground conductor, where the tether comprises a distal end, where the distal end of the tether is coupled to the arrester above the isolator.
Systems and methods for detecting and determining sources of power disturbances in connection with effective remediation
Apparatus and methods for selective protection of an electrical load from disturbances on an input power line. A power protection circuit includes a selectively variable inrush current limiting circuit and a switch for disconnecting the input power line from the load. A control circuit determines that the electrical load is in a first operational state, such as a standby mode or normal operation, or a second operational state, such as full operation at rated current. The power protection circuit provides variable inrush current limiting to the electrical load in response to a first category of disturbances when the electrical load is in the first operational state. The power protection circuit inhibits disconnecting the electrical load in response to a second category of disturbances when the electrical load is in the second operational state. Species of selectively variable current limiting circuits are also described.
Intrinsic safety barrier
An improved intrinsic safety barrier arrangement for an electrical device or component. A method of intrinsic safety barrier operation for an electrical device or component is also disclosed.
Overhead electrical grounding mesh and mechanical grid structure
An overhead electrical grounding mesh and mechanical grid structure for a data center includes a plurality of orthogonally arranged grid beams. Each of the grid beams is a rigid and electrically conductive grid beam to provide an overhead structure configured to be positioned over electronic equipment in the data center. The grid structure is configured to provide support for electronic equipment connected to the grid structure and to provide support for mechanical equipment in the data center that is connected to the grid structure. The grid structure is further adapted to be electrically coupled to the electronic equipment to provide an electrically conductive ground mesh for the electronic equipment in the data center.
[Problem] To provide a wire harness allowing a relatively large number of electrical wires to be passed under the floor of a vehicle body.[Means for Solving Problem]A wire harness 21 is provided with a plurality of high-voltage electrical wires 22, a protection member 23 which protects the high-voltage electrical wires 22, fixed members 24, 25 which fix the wire harness in a vehicle, and a low-voltage electrical wire 26. The protection member 23 has two protection members for body under floor 29 and a body under floor protection member 30. The protection members thereof are flat-corrugated tubes. In the two protection members for body under floor protection member 29, circuits 22a, 22b which have the plurality of high-voltage electrical wires 22 are respectively received. Also, in the protection member 30 for body under floor, a circuit 26a which has the low-voltage electrical wire 26 is received. The two protection members 29 and the protection member 30 are arranged side by side.
Rotatable awning with rotating conductor
Various embodiments of a rotatable awning with illumination are provided. The awning includes an axial groove wherein a plurality of luminaires are located for lighting of an area below and around an extended awning. The awning includes an electromechanical rotatable conductor which provides electrical contact between a fixed portion of the awning assembly and the rotating awning roller tube. This allows for flow through of electricity or current to the luminaires and/or the awning motor internally through the roller tube.
Comb-shaped interconnect of a looping bridge for looping a number of electric signals
A looping bridge is disclosed for looping a number of electric signals through from a first electric module having a number of first electric terminals to a second electric module having a number of second electric terminals, said looping bridge comprising: a comb-shaped interconnect structure having a number of first comb teeth and a number of second comb teeth wherein the first comb teeth can be inserted into the first electric terminals and the second comb teeth can be inserted into the second electric terminals, and wherein the first comb teeth are electroconductively connected to the second comb teeth the comb-shaped interconnect structure being a comb-shaped circuit board.
A spark plug includes an insulator made of an alumina sintered body containing Al2O3 as a principal component and additional components including; an Si component, a Ba component, an Mg component, a Ca component, an Sr component, and a rare earth element component. When the additional components are expressed as oxides including RSiO2, RBaO, RMgO, RCaO, RSrO, and RRE2O3, contents (mass %) of the sub-component satisfy expressions (1) to (6) as follows: (1) 1.0≦RSiO2≦5.0; (2) 0.5≦RBaO≦5.0; (3) 0≦RMgO≦0.18; (4) 0≦RMgO/RBaO≦0.36; (5) 0.3≦(RMgO+RCaO+RSrO)≦1.8; and (6) 0≦RRE2O3≦0.1.
Laser, laser modulation method and laser combination system
In the field of optical networks, a laser, a laser modulation method and a laser combination system are disclosed. The laser includes a gain medium, a resonant cavity, and a second microring resonator. The resonant cavity includes a first cavity mirror and a second cavity mirror. The first cavity mirror is located at one port of the gain medium, the second cavity mirror is located at another port of the gain medium, and the second cavity mirror includes a splitter, a first microring resonator, and a reflecting grating.
Method for manufacturing gallium and nitrogen bearing laser devices with improved usage of substrate material
In an example, the present invention provides a method for manufacturing a gallium and nitrogen containing laser diode device. The method includes providing a gallium and nitrogen containing substrate having a surface region and forming epitaxial material overlying the surface region, the epitaxial material comprising an n-type cladding region, an active region comprising of at least one active layer overlying the n-type cladding region, and a p-type cladding region overlying the active layer region. The method includes patterning the epitaxial material to form a plurality of dice, each of the dice corresponding to at least one laser device, characterized by a first pitch between a pair of dice, the first pitch being less than a design width. The method includes transferring each of the plurality of dice to a carrier wafer such that each pair of dice is configured with a second pitch between each pair of dice, the second pitch being larger than the first pitch corresponding to the design width.
Bridging module having a housing with a latching device for latching to a mounting rail
The present invention relates to a bridging module (300) for electrically connecting a functional component of a component assembly system, said bridging module comprising a module housing (337) which has an interlocking device (301) for detachably and interlockingly holding the bridging module (300) on a profiled mounting rail.
Electrical connector with thin conductive film between two rows of contacts
The electrical connector includes an insulative housing, a plurality of upper/first contacts and lower/second contacts retained in the housing, a reinforcement piece located between the upper contacts and the lower contacts in the vertical direction, and a metallic shield enclosing the housing. The housing includes a first insulator carrying the first contacts with a first tongue thereof, and a second insulator carrying the second contacts with a second tongue thereof, and the reinforcement piece is located between the first insulator and the second insulator wherein the reinforcement piece includes a relatively thin conductive film or layer located between the first mating tongue and the second mating tongue in the vertical direction.
An electrical connector including a holding device, that has a recess and at least one conductive pad disposed therein, and a socket that has at least one conductive pin configured to engage at least one of the conductive pads when the socket is inserted into the holding device and a port configured to receive an interface of an external device. The shape of the socket is complementary to the shape of the recess. A first retaining element included in the holding device and a second retaining element included in the socket are together releasably maintain interconnection between the holding device and the socket.
Electrical plug with disengagement member
An electrical connector for facilitating disconnection from an electrical device by an operator includes an electrical cord and an electrical plug device attached to an end of the electrical cord and having a planar surface. The electrical plug device includes an electrical connector perpendicular to the planar surface of the electrical plug device and a disengagement member. The electrical cord is electrically connected to the electrical connector through the electrical plug device.
Lever of the lever-fitting-type connector having a locked part with a convex surface
A lever-fitting-type connector includes a housing having a first terminal and a lever having a second terminal. The housing has a locking projection. The locking projection includes a front inclination surface and a rear inclination surface respectively extending along a sliding direction of the lever, and a ridgeline part where the front and rear inclination surfaces are connected to each other. The lever includes a locked part. The locked part has a convex surface. The convex surface, when the lever slides, moves over the ridgeline part from the front inclination surface toward the rear inclination surface.
Connector part comprising a locking element with a switch
A connector part to be connected to an associated mating connector part includes a housing having a plug-in portion that can be plugged into a mating plug-in portion of the mating connector part in an insertion direction and is connected to the mating plug-in portion when in a connection position. At least one electrical contact element is arranged on the plug-in portion, the at least one electrical contact element electrically contacting the mating connector part when in the connection position. A locking element is moveably arranged on the housing, the locking element interlocking the connector part with the mating connector part when in the connection position. The connector part includes a switch device with a switch portion that can be actuated when the locking element is moved to control a current flowing over the at least one contact element. An adjustment element is mounted on the locking element and is configured to be adjusted and to act on the switch when the locking element is moved a predetermined distance.
Provided is a module assembly including a plurality of modules. The modules each include a polyhedral housing with a polygonal plane, a pin provided on one side of a corner of the housing to selectively protrude, a pin installation portion in which the pin is installed to be movable, a pin receiver provided on another side of the corner of the housing such that a pin of another module is to be inserted thereinto, and a magnet installed between the pin installation portion and the pin receiver, and configured to apply magnetic force to both the pin provided in the pin installation portion and the pin of the other module to be received in the pin receiver.
Provided is a module assembly including a plurality of modules. The modules each include a polyhedral housing with a polygonal plane, a pin provided on one side of a corner of the housing to selectively protrude, a pin installation portion in which the pin is installed to be movable, a pin receiver provided on another side of the corner of the housing such that a pin of another module is to be inserted thereinto, and a magnet installed between the pin installation portion and the pin receiver, and configured to apply magnetic force to both the pin provided in the pin installation portion and the pin of the other module to be received in the pin receiver.
Connection module for a portable electronic device
A connection module for a portable electronic device is disclosed. The connection module includes a mating structure that is configured to attach to a mating structure interface of the portable electronic device. The mating structure includes a fixed alignment projection disposed on a first end of the mating structure, a retractable alignment projection disposed on a second end of the mating structure, and a retractable electrical connector disposed between the fixed alignment projection and the retractable alignment projection. The retractable electrical connector and the retractable alignment projection are fixed relative to each other and movable relative to the fixed alignment projection.
Waterproof and interference proof receptacle connector
A waterproof and interference proof receptacle connector has an upper insulative housing, a lower insulative housing, a first terminal set, a second terminal set, a shell, a watertight casing and an interference proof rear guard. The first and second terminal sets are mounted respectively on the upper and lower insulative housings. The shell is mounted on the upper and lower insulative housings. The watertight casing is mounted around the shell. The interference proof guard is mounted on the watertight casing. The watertight casing provides a waterproof function to allow the waterproof and interference proof receptacle connector to operate in humid or underwater environment.
Systems and devices for installing an evacuation slide actuation cable in a connection box assembly of an emergency evacuation slide and overwing door actuation system interface
Connection box assembly is provided for connecting evacuation slide actuation cable of evacuation slide actuation system to evacuation slide inflation system. Connection box assembly comprises connection box, connection box lid coupled thereto, electrical connector blocker coupled to connection box lid, and connection box slider disposed within connection box. Connection box lid is configured to slide between an open and closed position. Electrical connector blocker is configured to prevent electrical connection to electrical connector coupled to evacuation slide inflation system when connection box lid is in open position and to permit electrical connection to electrical connector when connection box lid is in closed position. Connection box slider is positioned to receive first cable end of evacuation slide actuation cable when connection box lid is in open position. Connection box lid in closed position closes connection box retaining and sealing connection box slider and first cable end inside connection box assembly.
Provided is a plug having a first plug piece and a second plug piece. The plug pieces are designed to enter in contact with each other, a male end of plug piece being accommodated in a first female end of plug piece. When the first plug piece is in contact with the second plug piece, electric contact elements accommodated in the plug pieces are in contact with each other. An insert accommodated in the female end of the first plug piece prevents inadvertent contacts by foreign bodies in the female end.
In a cable connecting a plurality of printed-circuit boards, terminals of connectors to which conductors disposed adjacent to conductors that supply power are connected are connected to ground via respective capacitors.
Electrical connector and method of manufacturing the same
An electrical connector comprising a first terminal assembly and a second terminal assembly which are formed on a same metal material. The first and the second terminal assemblies respectively comprise a plurality of first and second conductive terminals. The plurality of first and second conductive terminals respectively connect with each other by a first contact carrier and a second contact carrier which are connected by a third contact carrier formed on the metal material. Bending the third contact carrier at 180 degrees such that the first and the second terminal assemblies are arranged in parallel and up-and-down to each other. Providing an insulating material injecting molding on the first and the second terminal assemblies to form an insulating housing. Cutting and dislodging the first, the second and the third contact carriers to forming the electrical connector. The electrical connector is simple in manufacture and low in production cost.
Low profile electrical interconnect with fusion bonded contact retention and solder wick reduction
An electrical interconnect and a method of making the same. A plurality of contact members are located in through holes in a substrate so distal portions of the contact members extend above a first surface of the substrate in a cantilevered configuration and proximal portions of the contact members are accessible along a second surface of the substrate. A flowable polymeric material located on the second surface of the substrate is fusion bonded to the proximal portions of the contact members so the flowable polymeric material substantially seals the through holes in the substrate. An insulator housing is bonded to the first surface of the substrate with the distal portions of the contact members located in through holes in an insulator housing, so the distal portions are accessible from a second surface of the insulator housing.
An example terminal block may include a frame that is to attach to a power supply casing. The frame may be formed from an electrical insulator, and may include a base, exterior walls connected to the base, and a number of interior walls that separate an interior region of the frame into multiple compartments. The example terminal block may include a cover that may be formed from an electrical insulator and may be connected to the frame such that the cover may transition between an open position and a closed position. Each of the compartments may electrically isolate bus bars from one another, where the bus bars extend from within the power supply casing into the frame. The base may include a nut holder in each of the compartments, each of the nut holders having a cavity formed therein that is shaped so as to hold a nut captive.
Electrical wire connector
An electrical wire connector for electrically coupling together a plurality of electrical wires, which comprises a bridging member having a midsection interposed between a pair of sectional ends each having a lower jaw element integral thereto and an upper jaw element pivotally connected thereto to collectively form a clamp mechanism for receiving a bare portion of electrical wire. A torsion spring positioned between the lower and upper jaw elements serves to supply a downward clamping force that retains the electrical wire within the clamp mechanism. The clamp mechanism further includes a plurality of slots integrated within the structure of the lower and upper jaw elements for accepting therewithin an extended section of the bare portion of electrical wire to effect resistance of tensional forces applied thereto so as to provide for a permanent-like connection that maintains continuity through the electrical wire connector.
Ultrasonic weld interconnection coaxial connector and interconnection with coaxial cable
A coaxial connector for interconnection with a coaxial cable with a solid outer conductor by ultrasonic welding is provided with a monolithic connector body with a bore. An annular flare seat is angled radially outward from the bore toward a connector end of the connector, the annular flare seat open to the connector end of the connector. An inner conductor cap is provided for interconnection with an inner conductor of the coaxial cable by ultrasonic welding. The ultrasonic welding of each of the inner and outer conductor interconnections may be performed via inner conductor and outer conductor sonotrodes which are coaxial with one another, without requiring the cable and or connector to be removed from their fixture.
Contact including a plurality of connectable parts
A contact including a first connectable part, a second connectable part, and a middle part. The first connectable part includes a tube or plate. The plate has a cross section generally of U-shape, V-shape, C-shape, or L-shape. The tube or the plate includes a base and a first wall. The first wall extends from a first end portion of the base. The middle part includes a base and a first sloped portion. The base of the middle part is contiguously connected between the base of the first connectable part and the second connectable part. The first sloped portion is contiguously connected between the first wall and a first end portion of the second connectable part. The first sloped portion extends from a first end portion of the base of the middle part such that the first sloped portion slopes down toward the first end portion of the second connectable part.
Electromagnetic bandgap structure and electronic device having the same
An electromagnetic bandgap structure and an electronic device having the same are provided. The electromagnetic bandgap structure includes a first conductive element, a second conductive element and a planar inductive element. The planar inductive element is disposed between the first conductive element and the second conductive element. Furthermore, the planar inductive element is electrically connected to the first conductive element via a first conductive pillar, and it is electrically connected to the second conductive element via a second conductive pillar.
There is provided an antenna including an antenna element that has a prescribed length and detects a line of electric force, a transmission line that transmits an electrical signal, and a radio wave absorbing and attenuating part that has characteristics to absorb and attenuate a radio wave of a frequency band received by the antenna element and is arranged at least between the antenna element and the transmission line.
Ten-frequency band antenna
A ten-frequency band antenna includes a carrier, a high-frequency segment, a low-frequency segment, a printed circuit board (PCB) and an inductor. The high-frequency segment is arranged on left side of the carrier and the low-frequency segment is arranged on right side of the carrier. The radiator on the bottom face of the carrier electrically connects with the micro strip of the PCB and the ground line of the ground metal when the carrier is fixed to the PCB. The low-frequency segment is located at an opened area and corresponding to a metal face with smaller area such that the low-frequency segment is at a free space to enhance the frequency response of the low-frequency segment and the bandwidth of the high-frequency segment. The area and the volume of blind hole on the carrier can adjust the effective dielectric constant to adjust the resonant frequency and bandwidth of the antenna.
Resonant compensating loop for shielding of metal for magnetically coupled NFC and/or RFID devices, and methods of making and using the same
A near field communication device, and methods of manufacturing and using the same. The near field communication device includes a receiver configured to convert a received near field signal to an electric signal, a transmitter configured to generate a transmittable near field signal, a dielectric substrate within a housing, an antenna on the dielectric substrate, and a compensating loop within the housing and coupled to the antenna. The antenna is configured to receive the received near field signal and to transmit or broadcast the transmittable near field signal. The compensating loop is electromagnetically coupled to the antenna and advantageously mitigates or counteracts an electromagnetic effect of metal on or near a surface of the dielectric substrate opposite from the antenna.
Wideband antenna design for wide-scan low-profile phased arrays
An antenna cell for a wide-scan low-profile phased array system includes an antenna layer including one or more stacked conductive radiators configured to receive electromagnetic waves. The antenna cell also includes a feed layer that includes multiple rectangular slots and one or more feed structures. Each rectangular slot may excite an orthogonal polarization. The feed structures are positioned perpendicular to one another, and each of the feed structures includes a feed fork that includes a set of open-circuit stubs and is configured to tune antenna performance.
Antenna structure and wireless communication device using same
An antenna structure includes a feed unit, a grounding unit, a connecting unit, a radiating unit, and a resonating unit. The grounding unit is spaced apart from the feed unit. The connecting unit resists and is electrically connected to the feed unit and the grounding unit. The radiating unit is electrically connected to one side of the connecting unit so as to activate a first resonance mode. The resonating unit is electrically connected to another side of the connecting unit so as to activate a second resonance mode.
Multipath open loop antenna with wideband resonances for WAN communications
The disclosure concerns an antenna with open loops and multipath current distribution to achieve ultra wideband characteristics and antenna miniaturization, while simultaneously keeping high performance for a more reliable WAN communication, with higher data transfer, less dropping connections and improved sensitivity. To further reduce spatial requirements, the antenna may be incorporated on a flex substrate for bending with the contour of a device housing or the like.
Window assembly having a transparent layer and an outer region for an antenna element
A window assembly for a vehicle has a transparent layer including a metal compound such that the transparent layer as is electrically conductive. The transparent layer defines an area covering the window assembly. An outer region which is electrically non-conductive surrounds the area. The window assembly includes an antenna element including wire or transparent coating disposed within and surrounded by the outer region without extending into the transparent layer. The antenna element is electrically disconnected from the transparent layer such that the antenna element operates independent of the transparent layer. A feeding element is coupled to the antenna element for energizing the antenna element. The feeding element is electrically disconnected from the transparent layer such that the feeding element energizes the antenna element independent of the transparent layer.
Antenna module and mobile terminal having the same
Disclosed are an antenna module and a mobile terminal having the same. The antenna module including a ground plate; a metal plate spaced apart from the ground plate by a distance such that a surface of the ground plate faces a surface of the metal plate; and at least one feeding part and at least one ground part that couple the ground plate to the metal plate, wherein the at least one ground part may include a first ground part and a second ground part that are formed at two different positions along an edge of the ground plate, and wherein the first ground part and the second ground part may be spaced apart from the at least one feeding part.
Two-shot knuckles for coupling electrically isolated sections of an electronic device and methods for making the same
Two shot knuckles include a first shot component and a second shot component. Both shot components are composed of different dielectric materials, where the first shot is composed of a relatively high strength structural material and the second is composed of a cosmetic material. The first shot component can physically couple two conductive sections together by interfacing with a coupling structure of that section. The first shot component includes second shot retaining regions and a cosmetic region. The second shot component occupies the cosmetic region and anchors itself to the first shot component using the second shot retaining regions. The second shot may be the only part of the two-shot knuckle visible to a user of an electronic device and can exhibit any desired color.
Enhanced Q high dielectric constant material for microwave applications
Enhanced Q high dielectric constant material for microwave applications. In some embodiments, a composition can include a material with a formula Ba4+xSm(2/3)(14−x+0.5y)Ti18−yAlyO54, with the quantity y being in a range 0
Right angle transition to circuit
Right angle transition to circuit. A system includes a conductive plate, coaxial transmission line, a circuit, parallel to the conductive plate, and a right angle transition from the coaxial transmission line to the circuit. The transmission line includes a center pin protruding through a hole in the plate, an outer conductor formed by a conductive surface of the hole, and air dielectric between. The circuit includes a top conducting layer (TCL), ground plane with cutout, and an insulating substrate between the TCL and ground plane that abuts the pin. The transition includes the pin, a conductive element connecting the center pin to the TCL, the outer conductor, the air dielectric, the abutment of the substrate against the pin, and the cutout. The abutment and cutout minimize manufacturing variations regarding distance between the pin and the ground plane. The transition tunes out inductance introduced by bonding the pin to the TCL.
Battery pack with embedded heaters
A heat battery pack system includes a battery pack including a plurality of battery cells electrically interconnected to each other, a binding coupled to mechanically hold the battery cells physically together, and a heater system coupled to the battery pack to heat the battery cells. The heater system includes a heating element interweaved between the battery cells of the battery pack and a heating controller electrically coupled to the heating element to drive current through the heating element and provide heat to the battery cells of the battery pack. The weaving of the heating element between the battery cells provides fixed mechanical support to the heating element.
Heating and cooling device for a battery
A heating and cooling device for a battery may include an electrically conductive base plate for thermal coupling to the battery. The base plate may include at least one fluid path for flowing through by a coolant. The device may include a carrier plate of an electrically non-conductive material, into which at least one electric heating element may be inserted. The carrier plate may be connected electrically with the electrically conductive base plate. An electrically conductive cover plate may be connected electrically with the electric heating element. The base plate, the carrier plate and the cover plate may be stacked on one another along a stacking direction.
Secondary battery control device and SOC detection method
A control device of a secondary battery uses, as material of a positive electrode, positive electrode active material that shows a difference of an open circuit voltage curve between charging and discharging. A storing unit stores, as discharge open circuit voltage information, a relationship between an SOC in a discharge process and an open circuit voltage for each changeover SOC that is an SOC when changing a state of the secondary battery from the charge to the discharge. An SOC calculating unit calculates the SOC of the secondary battery in the discharge process on the basis of a changeover SOC when actually performing the change from the charge to the discharge and the discharge open circuit voltage information stored in the storing unit. It is therefore possible to properly detect the SOC during the discharge.
Ion conducting fluoropolymer carbonates for alkali metal ion batteries
Liquid or solid electrolyte compositions are described that comprise a homogeneous solvent system and an alkali metal salt dissolved in said solvent system. The solvent system may comprise a fluoropolymer, having one or two terminal carbonate groups covalently coupled thereto. Batteries containing such electrolyte compositions are also described.
Cable-type secondary battery
Disclosed herein is a cable-type secondary battery having a horizontal cross section of a predetermined shape and extending longitudinally, comprising: a core for supplying lithium ions, which comprises an electrolyte; an inner electrode, comprising an open-structured inner current collector surrounding the outer surface of the core for supplying lithium ions, an inner electrode active material layer formed on the surface of the inner current collector, and a first electrolyte-absorbing layer formed on the outer surface of the inner electrode active material layer; a separation layer surrounding the outer surface of the inner electrode to prevent a short circuit between electrodes; a second electrolyte-absorbing layer formed on the surface of the separator; and an outer electrode surrounding the outer surface of the second electrolyte-absorbing layer and comprising an outer electrode active material layer and an outer current collector.
Anode for secondary battery and secondary battery having the same
The present invention relates to an anode for a secondary battery, comprising at least two anode wires which are parallel to each other and spirally twisted, each of the anode wires having an anode active material layer coated on the surface of a wire-type current collector; and a secondary battery comprising the anode. The anode of the present invention has an increased surface area to react with Li ions during a charging and discharging process, thereby improving the rate characteristics of a battery, and also release stress or pressure applied in the battery, e.g., the volume expansion of active material layers to prevent the deformation of the battery and ensure the stability thereof, thereby improving the life characteristic of the battery.
Method for the production of an all-solid battery
A method for the production of a battery includes at least production, against a substrate made of a material able to form an electrode, of at least one solid electrolyte layer, production of a first electrode in contact with the electrolyte, and thinning the substrate such that at least a remaining proportion of the substrate, in contact with the solid electrolyte layer, forms a second electrode.
Recovery of metal components from sulfide mineral tailings by microbial fuel cell
The present invention provides a novel method that recovers metal components from sulfide mineral tailings by Microbial Fuel Cell. The traditional bio-hydrometallurgy reaction is split to one oxidization reaction taking place in the anode chamber and one reduction reaction taking place in the cathode chamber. H+ generated during the oxidization reaction is continually transferred to cathode chamber through proton exchange membrane and reacted with O2 to generate H2O, which not only increases the reaction rate in anode chamber but also decreases equipment corrosion caused by excessive H+. The method of the present invention, recovering metals as well as electronic power, is environment-friendly.
Power generation body
There is provided a power generation body used for a fuel cell. The power generation body comprising a membrane electrode and gas diffusion layer assembly comprising an electrolyte membrane, a first catalyst layer placed on one surface of the electrolyte membrane, a second catalyst layer placed on the other surface of the electrolyte membrane, a first gas diffusion layer placed outside of the first catalyst layer and a second gas diffusion layer placed outside of the second catalyst layer; a frame placed around a circumference of the membrane electrode and gas diffusion layer assembly; and an adhesive provided to bond the membrane electrode and gas diffusion layer assembly to the frame. The first gas diffusion layer is formed to have an identical size with that of the electrolyte membrane, and the second gas diffusion layer is formed smaller than the electrolyte membrane. The frame has a stepped portion corresponding to a stepped shape formed by the electrolyte membrane and the second gas diffusion layer. The stepped portion has a bonded surface, which includes a surface opposed to the first gas diffusion layer and a surface opposed to either the electrolyte membrane or the second catalyst layer. The bonded surface has higher hydrophilicity than an unbonded surface, which is not bonded to another member, among surfaces of the frame.
Fuel cell system and driving control method thereof
A method of controlling a fuel cell system includes decelerating the air blower that stops power generation of a fuel cell stack or supplies air to the fuel cell stack. A connection state of pipes connected to a valve is controlled by adjusting the valve disposed between an exit side of the air blower and an entrance side of a cathode of the fuel cell stack. According to the present disclosure, the time of maintaining open circuit voltage (OCV) can be reduced, and the dry out of the fuel cell stack can be prevented to improve durability of the fuel cell.
Fuel cell system
A fuel cell system includes a fuel cell stack, a compressor, a cathode flow passage, a bypass flow passage branching from the cathode flow passage, thereby bypassing the stack, a bypass valve adjusting a bypass flow rate, a stack flow rate sensor detecting a flow rate to the stack, and a compressor flow rate sensor detecting a flow rate into the compressor. A flow rate for the stack depending on a state of a fuel cell and a flow rate the compressor controls depending on a requirement different from that of the stack are calculated. A control unit controls, when the flow rate required from the compressor is more than that required by the stack, the compressor based on the flow rate required from the compressor and a detected compressor flow rate, and controls the bypass valve based on the flow rate required by the stack and a detected stack flow rate.
A fuel cell includes: a membrane electrode assembly; a gas flow path member that has a first side that is arranged on a surface of the membrane electrode assembly; a pair of separators that are arranged sandwiching the membrane electrode assembly and the gas flow path member, and each have a separating portion and a plurality of holes separated by the separating portion, the holes being provided in each of opposite sides of the separator and being lined up in a predetermined direction along the sides; and a sealing plate that is arranged on an end portion of the first side adjacent to the holes, and is welded to the gas flow path member at a predetermined welding position, the predetermined welding position being provided in a region that includes a position on a straight line that passes through the separating portion and is perpendicular to the sides.
Electrical signal processing system for fuel cell stack
A system and method for processing the electric signals from a plurality of fuel cells in a fuel cell system is disclosed. Groups of the plurality of fuel cells, such as five bipolar plates, are electrically coupled to a conductive compressible connector or a circuit board, where some of the bipolar plates have a plate contactor for providing the electrical contact to either the conductive compressible connector or the circuit board. The system allows for the processing of the electric signals of every cell using fewer electrical components, thereby reducing the amount of space required and the costs associated therewith.
Method of making a fuel cell component having an interdigitated flow field configuration
According to an illustrative embodiment, a method of making a fuel cell component includes removing material from a first plurality of locations along at least one surface on a plate to simultaneously establish a plurality of first channels on the surface. Each first channel has a length between a first end near a first edge of the surface and a second end spaced from a second, opposite edge of the surface. Material is also removed from a second plurality of locations along the surface to simultaneously establish a plurality of second channels on the surface. Each second channel has a length beginning at a first end spaced from the first edge and a second end near the second edge. Material is also removed from the surface near the first ends of at least some of the first channels to simultaneously establish an inlet portion for directing a fluid into the corresponding first channels.
Highly sinter-stable metal nanoparticles supported on mesoporous graphitic particles and their use
The present invention refers to highly sinter-stable metal nanoparticles supported on mesoporous graphitic spheres, the so obtained metal-loaded mesoporous graphitic particles, processes for their preparation and the use thereof as catalysts, in particular for high temperature reactions in reducing atmosphere and cathode side oxygen reduction reaction (ORR) in PEM fuel cells.
Reformed battery grids
A method of making a grid for a battery plate of a lead-acid battery. A substantially planar web is manufactured to include a plurality of spaced apart and interconnected wire segments, which at least partially define substantially planar surfaces, have a plurality of transverse lands, and interconnect at a plurality of nodes to define a plurality of open spaces between the wire segments. The web is reformed to change the cross-sectional shape of the wire segments. Other aspects may include simultaneously reducing the thickness of at least a portion of the web while reshaping the wire segments, and/or providing a controlled surface roughness on at least one of the surfaces of the web to increase surface area of the grid and thereby promote adhesion of an electrochemically active material to the grid.
Electrode for sodium molten-salt battery and sodium molten-salt battery
Provided is an electrode for a sodium molten-salt battery in which degradation of the electrode can be suppressed even when charging and discharging are repeated, and which has excellent cycle characteristics. The electrode for a sodium molten-salt battery includes a current collector and an electrode mixture adhering to a surface of the current collector, in which the electrode mixture includes an electrode active material and a binder containing a polymer, and the polymer does not contain a fluorine atom. The polymer can include, for example, at least one selected from the group consisting of polyamide resins and polyimide resins or at least one selected from the group consisting of acrylic resins, rubber-like polymers, and cellulose derivatives.
Extreme long life, high energy density batteries and method of making and using the same
A composition containing a carbon monofluoride admixture is provided. The carbon monofluoride admixture is generally in the form of layer having opposing upper and lower surfaces. Usually, an ion conducting or a solid electrolyte layer is position on one of the upper or lower layers of the monofluoride admixture. In some configurations, the ion conducting or a solid electrolyte layer can be alkaline metal aluminum oxide or alkaline metal aluminum fluoride. The alkaline metal is commonly lithium, and the alkaline metal aluminum oxide or alkaline metal aluminum fluoride is more commonly MzAlXy (M is one of alkali metals, X=O, F), Z commonly can have a value from about 0.5 to about 10 and y can have a value from about 1.75 to about 6.5, more commonly z can have a value from about 1 to about 5 and y can have a value from about 2 to about 4. The carbon monofluoride admixture can include a polymeric binder and one or more of a conductive carbon black and conductive graphite. The carbon monofluoride admixture is generally a component one or more electrodes of an electrochemical energy storage device.
Method for forming a reduced graphene oxide/metal sulfide composite and its use as an anode for batteries
The invention relates to anode materials suitable for use in batteries, such as lithium ion batteries and sodium ion batteries. In particular, the anode material is a reduced graphene oxide/metal sulfide composite. Methods for forming the reduced graphene oxide/metal sulfide composite are also disclosed.
Process for silicon nanowire-graphene hybrid mat
Disclosed is a process for producing graphene-silicon nanowire hybrid material, comprising: (A) preparing a catalyst metal-coated mixture mass, which includes mixing graphene sheets with micron or sub-micron scaled silicon particles to form a mixture and depositing a nano-scaled catalytic metal onto surfaces of the graphene sheets and/or silicon particles; and (B) exposing the catalyst metal-coated mixture mass to a high temperature environment (preferably from 300° C. to 2,000° C., more preferably from 400° C. to 1,500° C., and most preferably from 500° C. to 1,200° C.) for a period of time sufficient to enable a catalytic metal-catalyzed growth of multiple silicon nanowires using the silicon particles as a feed material to form the graphene-silicon nanowire hybrid material composition. An optional etching or separating procedure may be conducted to remove catalytic metal or graphene from the Si nanowires.
Cathodic electrode of a lithium-based accumulator
A cathodic electrode of a lithium-based accumulator includes a basic structure, which is formed from fibers, flakes or grains. For this purpose, the fibers, flakes or grains are interspersed with channels, cavities or open pores.
Sealing plate for prismatic secondary battery and prismatic secondary battery using the sealing plate
A prismatic secondary battery includes a prismatic hollow outer body having a mouth and a bottom; a flat electrode assembly, a positive electrode collector, a negative electrode collector, and an electrolyte, all of which are stored in the prismatic outer body; a sealing plate sealing up the mouth of the prismatic outer body; and a positive electrode terminal attached to the sealing plate in an electrically insulated manner. The sealing plate includes a gas release valve and an electrolyte pour hole and further includes, on the front face, a concaved flat face having an identification code. With the prismatic secondary battery of the invention, a jig for assembly or the like is unlikely to come into contact with the identification code during an assembly process of the prismatic secondary battery, hence the identification code is unlikely to be abraded, and the traceability is unlikely to be lost.
Secondary battery and secondary battery module including the same
A secondary battery includes an electrode assembly, a battery case, and a cap assembly. The electrode assembly may include a first electrode plate, a second electrode plate, and a separator. The battery case may accommodate the electrode assembly, which may be inserted into the battery case through an opening provided on one side of the battery case. The cap assembly may include a cap plate coupled to the side of the battery case including the opening and sealing up the battery case, and first and second terminals spaced on the cap plate. The first and second terminals may each include first and second terminal plates including protrusions that protrude away from the electrode assembly, and first and second terminal connection members on the first and second terminal plates and including grooves that can be combined with the corresponding protrusions.
Lithium battery cell structure
A lithium battery cell structure is provided. A first-electrode conduction portion and a second-electrode conduction portion that are exposed outward are respectively provided on two sides of a soft package lithium battery inside the metal housing. The first-electrode conduction portions are respectively electrically connected and fixed to a first-electrode conductive sheet, and the first-electrode conductive sheet is electrically connected and fixed to a housing conductive sheet that is connected to the metal housing. The second-electrode conduction portions are respectively electrically connected and fixed to a second-electrode conductive sheet, and an other end of the second-electrode conductive sheet is electrically connected and fixed to the second electrode end. By adjusting the design of electrical connection between extending portions and the soft package lithium battery and the housing, the lithium battery cell is enabled to have better electrical conductivity and a better heat dissipation effect, and the sealing procedure made simpler.
Accumulator arrangement, busbar element therefor and method for producing an accumulator arrangement
The invention relates to an accumulator arrangement which has a plurality of series-connected individual accumulators, each individual accumulator having at least one plus pole and a minus pole as externally accessible connection poles, busbar elements being secured on the connection poles in order to form the series connection, which each connect a minus pole of an individual accumulator to a plus pole of another individual accumulator, characterized in that a specific assembly sequence of said busbar elements is determined by the structural design of the busbar elements. The invention further relates to a busbar element and a to method for producing an accumulator arrangement.
Energy storage apparatus
An energy storage apparatus includes: a housing which has a container body and a lid portion provided with external connection terminals; an energy storage module which is arranged in the housing, the energy storage module having a cell stack; a bolt which restricts movement of the energy storage module with respect to a bottom wall of the container body; and a support member which restricts movement of the energy storage module with respect to the lid portion.
Rechargeable battery including current collecting member with current collecting part having twisted surface
A rechargeable battery includes an electrode assembly that performs charging and discharging operations, a case having the electrode assembly enclosed therein, a cap plate coupled with an opening of the case, an electrode terminal on the cap plate, and a current collecting member connecting the electrode assembly to the electrode terminal. The current collecting member includes a terminal connecting part connected to the electrode terminal, and an electrode connecting part connected to an uncoated region of the electrode assembly, the electrode connecting part including a twisted surface, the twisted surface facing a sidewall of the case at a predetermined inclination angle with respect to a direction from the sidewall toward an end of the uncoated region.
Apparatus and method for sealing pouch case of secondary battery
The present disclosure discloses an apparatus and method for sealing a pouch case that optimizes a sealing shape or structure of a sealing portion at an inner side of the pouch case to ensure insulation of a secondary battery. The apparatus for sealing a pouch case of a pouch-type secondary battery according to the present disclosure includes an upper compression jig to apply pressure to a sealing portion of the pouch case in a downward direction, and a lower compression jig to apply pressure to the sealing portion of the pouch case in an upward direction, and at least one of the upper compression jig and the lower compression jig applies the pressure to the pouch case at different depths at an inner side end and an outer side end.
Bank repair method, organic EL display device, and production method for same
An examination is performed of whether or not a bank having a defect portion is present. When a bank having a defect portion is present, the bank having the defect portion is repaired by forming a dam in each of adjacent concave spaces between which the bank having the defect portion is located. A dam formed in a concave space partitioning the concave space into a first space in a vicinity of the defect portion and a second space outside the vicinity of the defect portion.