Base member, manufacturing method for electronic device, and electronic apparatus
A base member includes a mounting area where an electronic component can be mounted and a ring-shaped sealing surface surrounding the area as the area is viewed in a plan view. A sealing member is fixed on the sealing surface. A through-hole portion which is a recess partitioned by a wall surface of the sealing member and which connects the mounting area and an outer peripheral side of the sealing surface as viewed in a plan view is provided on the sealing surface. A manufacturing method for an electronic device using this base member is also provided.
Manufacturing method of multilayer printed wiring board
A manufacturing method of a multilayer printed wiring board in which a copper foil with carrier foil consists of at least four layers, a copper foil layer/a release layer/a heat-resistant metal layer/a carrier foil is used; a supporting substrate is manufactured by laminating an insulating layer constituting material to the surface of the carrier foil constituting the copper foil with carrier foil; a supporting substrate with build-up wiring layer is manufactured by forming a build-up wiring layer on the surface of the copper foil layer constituting the copper foil with carrier foil in the supporting substrate; the resulted supporting substrate with build-up wiring layer is separated at the release layer to manufacture a multilayered laminate; the resulted multilayered laminate is processed a necessary procedures to manufacture a multilayer printed wiring board.
Inverter with enclosure
The invention relates to an inverter with an enclosure that includes a removable hand plug which, when inserted inside the enclosure, shares an electrical connection with the inverter. The hand plug includes a fan configured to cool at least a portion of the inverter enclosure.
Data center air routing system
The invention provides a modular, configurable aisle isolation and containment system that may function as a hot aisle or as a cold aisle. The data center air routing system of the invention comprises one or more free-standing, essentially identical, modular system units. Each modular unit comprises two sidewalls, a ceiling, and a door or panel at either end to form an interior, enclosed aisle. Two or modular units may be coupled together end-to-end. Each modular unit further comprises one or more sidewall blanking panels that may be removed to create gaps of varying height and width to accommodate one or more IT racks. Each modular unit may also include one or more ceiling-mounted air ducts, baffles and fans to manage air flow.
Air filtration and visual barrier for enclosure with front-to-back airflow
An enclosure has a perforated front door with a replaceable filter, and a perforated rear side allowing air to flow through the enclosure. The enclosure also has mounting brackets for heat generating elements, such as line cards or other rack mounted electronics. A fan draws air through the perforated front door, though the filter, and across the heat generating elements. Side brushes are disposed on a side wall near the front of the enclosure, which allow any cables attached to the heat generating elements to exit the enclosure. The front door is removable, opening up one side of the side brushes and allowing the cables to slide in the side brushes while still connected to the heat generating elements.
Heat dissipation for a chip protected by an anti-tamper background
Systems and apparatus disclosed herein provide for heat dissipation from a chip protected by an anti-tamper material. An example electronic device includes a circuit board having electronics mounted thereon, and a security shield covering one or more electronics on the circuit board and configured to sense tampering, the one or more electronics including a chip, the security shield defining an aperture. The device also includes a heat sink extending through the aperture and thermally coupling with the chip, the heat sink extending outside of the security shield.
Thermal extraction architecture for camera heads, inspection systems, and other devices and systems
Thermal extraction architectures for heat-generating electronic devices such as cameras or lights are disclosed. An electronic device such as a camera head may include a housing, a printed circuit board (PCB) within the housing, and a thermal extraction element positioned between the housing and PCB to transfer heat from the PCB to the housing and external environment.
Cooling system for electric vehicle and control method thereof
Disclosed are a cooling system for an electric vehicle and a control method thereof. The electric vehicle equipped with electronic parts including an electric motor. The electric vehicle includes a motor control unit to control the electric motor, a main control unit to control the electronic parts and the motor control unit, a water pump to circulate a cooling water cooling the electronic parts, the motor control unit, and the main control unit, and a temperature sensor to detect a temperature for an operation of the water pump and output the temperature to the motor control unit. The motor control unit generates a control signal to operate or stop the water pump according to a detection result of the temperature sensor.
Power supply unit with articulating fan assembly
A fan assembly is flexibly attached to an electronic device enclosure. The fan assembly is configured to pivot with respect to the electronic device enclosure from a horizontal position to an angled position during insertion of the enclosure into the chassis. The horizontal position is to facilitate insertion of the electronic device enclosure into a chassis. The angled position is maintained when the electronic device enclosure is fully inserted into the chassis.
Flexible wiring board and display device
A flexible wiring board includes a base member having flexibility, a write terminal section which is formed on the base member and which is a section to be protected, a protecting section which is integrally formed with the base member and which is folded back so as to cover the write terminal section, and a slit which is formed in the base member in a position that overlaps with the protecting section in a folded state and into which the protecting section can be inserted.
Control device and vehicle steering system including control device
A circuit board includes control circuit patterns and first drive circuit patterns. A base maintains the circuit board in a state in which the base is opposed to a portion of the circuit board, in which the control circuit patterns are formed, across a space that allows control circuit elements to be mounted at the circuit board. A line module includes second drive circuit patterns electrically connected to the first drive circuit patterns so as to constitute a part of lines of a drive circuit, and is sandwiched between a portion of the circuit board, in which the first drive circuit patterns are formed, and the base.
Partitioned hybrid substrate for radio frequency applications
The presently claimed invention is to provide a package for compact RF signal system, and a method to form the package thereof in order to miniaturize the size of package, improve signal integrity, and reduce manufacturing cost. The package comprises a hybrid substrate with a sandwiched structure, in which the hybrid substrate comprises an upper layer and a lower layer with different dielectric properties being separated by an interposer for improving electrical isolation and mechanical stiffness. Metal layers are formed on the sidewalls of the opening to surround an active component, such that the metal sidewalls together with two ground plates in the upper and lower layers constitute a self-shielding enclosure inside the package to protect the active component.
Electrical junction box
An electrical junction box includes a box body in which electrical parts are mounted and that has a water draining hole provided at a bottom wall part of the box body and a waterproof wall that is provided inside the box body along a periphery of an opening of the water draining hole. The waterproof wall includes a spherical cover wall part standing from the periphery of the water draining hole to cover the water draining hole with an inner spherical surface, and a draining opening part formed at a portion of the spherical cover wall part to allow water exist in the box body to drain to the outside of the box body through the water draining hole.
Holding apparatus for retaining a generally flat-shaped item, such as a hand-held electronic device
A holding apparatus capable of embracing a generally flat-shaped item, such as a smartphone, computer tablet or the like, said holding apparatus comprising one or more pairs of opposing V-shaped clamping surfaces capable of providing a self-adjusting, permanent grip of the sides of the item regardless of the item being static, vibrating, or touched by a user's finger or other external object. The V-shaped clamping surfaces can be arranged on two or more sides of the device. For instance, opposing V-shaped clamping surfaces can be arranged to clamp the left and right sides of a four-sided quadrangular device, and additional opposing surfaces can be arranged perpendicularly to grip the top and bottom sides of the device, providing a very effective and robust grip that minimizes the risk of the item being dropped and damaged.
Explosion proof by containment enclosure for housing electrical equipment
A low profile explosion proof by containment enclosure includes a base wall having first and second edge sections that are joined with third and fourth edge sections to define a substantially planar surface. First and second side walls extend from the first and second edge sections, and third and fourth side walls extending from the third and fourth edge sections and are joined with the first and second side walls. The base wall, first and second, and third and fourth side walls define an interior zone. A cover is coupled to the first and second, and third and fourth side walls to enclose the interior zone and provide containment to any flammable events. At least one of the first and second side walls, third and fourth side walls, base wall, and cover includes one or more unobstructed openings that provide fluid drainage while also providing containment to any flammable events.
Housing for a portable electronic device
A housing for a portable electronic device including a first transparent curved portion configured to curve from a front face of the housing to a first side face of the housing; a second transparent curved portion configured to curve from the front face of the housing to a second side face of the housing; a third transparent curved portion configured to curve from a rear face of the housing to the first side face of the housing; and a fourth transparent curved portion configured to curve from the rear face of the housing to the second side face of the housing.
A display device in the present invention includes a display panel which is provided with a display screen, a T-substrate which is arranged in a predetermined range narrower than the display panel at the back side of the display panel, first flexible printed circuit substrates which extend downward from the upper end of the display panel and are connected to the T-substrate, and second flexible printed circuit substrates which extend upward from the lower end of the display panel and are connected to the T-substrate in order to achieve more reduction in thickness when the display panel and the circuit substrate are arranged together.
Plasma generation apparatus
A plasma generation apparatus includes a vacuum container, dielectrics connected to through-holes formed in the vacuum container, RF coils of the same structure disposed in the vicinity of the respective dielectrics and electrically connected in parallel, an RF power source to supply power to the RF coils, an impedance matching circuit disposed between the RF power source and the RF coils, and a power distribution unit disposed between the impedance matching circuit and one ends of the RF coils to distribute the power of the RF power source to the RF coils. The power distribution unit includes a power distribution line and a conductive outer cover enclosing the power distribution line. Distance between an input end of the power distribution unit and the RF coils are equal to each other, and the other ends of the RF coils are connected to the conductive outer cover to be grounded.
Organic electronic device
The present invention relates to organic electroluminescent devices which comprise aromatic nitrogen heterocyclic compounds, in particular in a hole-injection layer and/or in a hole-blocking layer and/or in an electron-transport layer and/or in an emitting layer.
Method for manufacturing a flexible display device
The present invention relates to the display technology field and provides a method for manufacturing a flexible display device, wherein an adhesion layer having a rough surface is formed at the juncture of a releasing layer and a carrier substrate before a flexible substrate is formed on the carrier substrate. The technical solution of the present invention can improve the qualified rate of the flexible display device.
Organic light emitting display device and method of testing the same
Provided is an organic light emitting display device including: a display unit including a plurality of pixels, each pixel of the pixels including an organic light emitting diode; and a test circuit configured to apply a first signal and a second signal to the display unit and to receive a third signal from the display unit. The test circuit is configured to determine whether or not the display unit is in a normal state based on a voltage level of the third signal when the first and second signals have a first level.
Systems and methods for developing and distributing illumination data files
Embodiments of the present invention relate to systems and methods for creating, distributing and playing illumination data files. The illumination data files, created using luminaire development systems are uploaded to a luminaire management system, where they are further processed and packaged for sale or license within a luminaire marketplace. Consumers and enterprises using luminaires may establish accounts with the luminaire management system and marketplace to access illumination data files for playback on individual or multiple luminaires. Consumers and enterprises may also create play lists and uniquely configure the luminaires to display various lighting effects based on user preferences, environmental factors or energy efficient settings.
LED lamp with half wave dimming
An LED lamp assembly includes a power supply configured to receive an input power signal and provide a DC lamp current, a dimming controller coupled to the power supply and configured to adjust the DC lamp current, and an LED lamp coupled to the DC lamp current. The dimming controller is configured to determine if full brightness or dimmed brightness is required based at least in part on the input power signal. The DC lamp current is maintained at a first level when full brightness is required and at a second level when dimmed brightness is required.
Illumination driving apparatus for light emitting diode and method thereof
There is provided an illumination driving apparatus for a light emitting diode, the apparatus including: a light emitting unit including M number of light emitting diodes (LEDs) connected in series and driven by an output voltage rectified in a rectifying unit; an LED switch unit including N number of LED switches connected in parallel with at least N number of the M LEDs, respectively, and connected in series; an LED switch control signal generating unit comparing the output voltage of the rectifying unit with each of the first to Nth preset reference voltages to generate N number of LED switch control signals controlling the LED switch unit; and an LED switch controlling unit transferring the N number of LED switch control signals to the LED switch unit.
Power supply device and control circuit thereof
There are provided a power supply device switching power input to a primary side to supply the power to a predetermined load connected to a secondary side electrically insulated from the primary side and a control circuit thereof. The control circuit generates a predetermined PWM signal to apply the PWM signal to a dimming switch connected to an end of the load and controls a switching frequency of the primary side, based on a control voltage generated according to a feedback signal according to the power supplied to the load and the PWM signal, and the control voltage maintains a constant difference between a minimum voltage level and a maximum voltage level regardless of a duty of the PWM signal.
LED driving device and LED driving method using same
In various aspects of the present subject matter, a light emitting diode (LED) driving device and an LED driving method using the same are disclosed.
Passive peaking circuit comprising a step-down impedance transformer
A passive peaking circuit is formed in part from a passive step-down impedance transformer that interconnects the light source driver to the light source. The step-down impedance transformer has impedance that decreases in a continuous or discrete manner in the direction from the light source driver circuit to the light source. The passive peaking circuit peaks the electrical drive signal being delivered from the light source driver circuit to the light source, thereby widening the eye opening.
LED driving apparatus having holding current circuit and operating method thereof
A LED driving apparatus having a holding current circuit and an operating method thereof are disclosed. The holding current circuit includes an input terminal, a holding resistor, a regulator, a first resistor, a second resistor, a setup resistor, a control unit, and a transistor. The holding resistor and the regulator, the first resistor and the second resistor, and the transistor and the setup resistor are coupled between the input terminal and ground terminal respectively. The control unit is coupled to the transistor, between the holding resistor and the regulator, and between the first resistor and the second resistor respectively. The control unit receives a first voltage between the holding resistor and the regulator and a second voltage between the first resistor and the second resistor and outputs a control signal to selectively control the transistor off.
Apparatus and methods for control of a light emitting device using power line communication
A lighting apparatus includes a light emitting device that has an attribute that is adjustable responsive to a control signal carried on a power line from which the light emitting device receives an Alternating Current (AC) power signal.
System and method for low level dimming
The present disclosure is directed to an inexpensive yet intelligent solution for dimming light devices to low level intensities in which the common lighting systems generally have difficulties maintaining stability and flicker-free operation. The systems and method described herein enable a lighting system to utilize a dimmer to dim one or more lighting devices to low level intensities without introducing flickering or inconsistent operation of the lights. More specifically, the systems and methods described herein enable a dimmer to dim lights to anywhere between 0% and 5% of maximum brightness, while ensuring that the lights operate at these levels consistently, smoothly and without any visible flickering.
Pixel circuit for an active matrix OLED display
A circuit arrangement for organic light-emitting diodes can be arranged in a two-dimensional matrix. It can in particular be used with microdisplays. It can allow a wide influencing of the brightness of the electromagnetic radiation emitted by the organic light-emitting diodes. Every organic light-emitting diode can be controlled by means of a storage circuit, a sense amplifier and a driver circuit using the circuit arrangement. The driver circuit can be formed by at least three transistors connected in series and a further output transistor whose drain is connected to the anode of the respective organic light-emitting diode. In this respect, the transistor acting as the driver can have a constant electric operating voltage LVDD applied at its source and a further likewise constant electric operating voltage Vdrive is applied to its gate. The drain of the first transistor to the source of the following transistor connected to it in series and the two gates of the following transistors which form a switch and are connected in series are connected to the output of the sense amplifier and are acted on by its electric output voltage VSenseOut. The drains of the two transistors forming the switch are connected to the source of the output transistor whose gate is connected to ground potential or to which negative electric voltage is applied.
High frequency cooking apparatus
A high frequency cooking apparatus supplies electric power through a relay contact to a high frequency generator, sets cyclic ON time and OFF time of the relay contact based on set heating time and heating power, and controls the heating power of the high frequency generator. The high frequency cooking apparatus includes a unit for determining whether the time corresponding to the last cycle in the heating time is more than the set ON time of the relay contact, and a unit for increasing the ON time of the relay contact in a cycle just before the last cycle by the ON time of the relay contact in the last cycle and abbreviating the ON time of the relay contact in the last cycle, when the determining unit determines that the time is not more than the set ON time of the relay contact.
Induction-based food holding/warming system and method
A method for holding and warming food. The method includes the steps of: using a container formed of 300-series stainless steel, wherein the container is formed by a cold working process; and applying to the container a magnetic field from an induction coil, wherein the magnetic field is sufficient to induce a current in the container to heat the container.
Control method for an induction cooking appliance
A system and method of controlling an induction cooking appliance based on a feedback signal. A feedback signal sampling time interval may be triggered when a power control signal has a magnitude of zero. The feedback signal sample may be used to calculate a status factor and the appliance may be controlled based on the calculated status factor.
Heating cooking device
A heating cooking device includes a temperature sensing element that contacts a bottom surface of a top plate directly or indirectly and measures a temperature of the top plate, a spring portion one end side of which is supported by a heater unit and the other end side of which presses the temperature sensing element against the top plate, and a spring that presses the heater unit toward the top plate. An elastic force n1 with which the spring portion presses the temperature sensing element against the top plate is smaller than an elastic force n2 with which the spring presses the heater unit toward the top plate.
Method and apparatus of transmitting a White Space Map information in a wireless local area network system
A method of transmitting a White Space Map information in a wireless local area network system (WLAN) is disclosed. A method of transmitting a white space map information from a first station to a second station in a regulatory domain where a licensed device and an unlicensed device are permitted to operate together in a wireless local area network (WLAN) comprises transmitting, from the first station, one of a beacon frame, a probe response frame and a white space map announcement frame comprising a white space map (WSM) element comprising information for first available channels, which are available for the unlicensed device, to the second station, wherein the WSM element comprises a device type field indicating which device type the list of the fist available channels is for.
Coexisting radio communication
This disclosure describes techniques and/or apparatuses for coexisting radio communication. In some aspects, a first radio module transmits a protection frame to a remote entity through an antenna effective to prevent the remote entity from transmitting a signal to the first radio module while a second radio module has access to the antenna.
Macro-femto inter-cell interference mitigation
A method for managing signal interference is provided. The method comprising receiving a signal, wherein the signal comprises at least an interfering reference signal from an interfering network interface and a serving reference signal from a serving network interface, and wherein the interfering signal interferes with the serving signal; identifying a power level and offset of the interfering reference signal and a power level and offset of the serving reference signal; comparing the interfering power level and offset to the serving power level and offset to form a comparison; and performing a corrective action based on the comparison.
Relay station data transmission method
A method of a relay node transmitting data is provided. The method includes receiving scheduling information about a backhaul link and data from a base station; receiving channel information about an access link from relay node user equipment; performing scheduling on the access link based on the scheduling information about the backhaul link and the channel information about the access link; and relaying the data to the relay node user equipment according to a result of the scheduling. The backhaul link means a link between the base station and the relay node, and the access link means a link between the relay node and the relay node user equipment.
Wireless communication system provided in aircraft for communicating using plural wireless channels
In a wireless communication system including a plurality of wireless stations provided in a structure having a radio wave shield arranged at a fixed position, at least one of two wireless stations using an identical wireless channel and two wireless stations using wireless channels adjacent to each other are allocated on both sides of the radio wave shield, respectively. In this case, the structure is an aircraft, and the two wireless stations are allocated on different aisles of the aircraft, respectively. In addition, the two wireless stations are allocated to be apart from each other in a longitudinal direction of the aircraft.
Central wireless network selection and monitoring for mobile client terminals
A method of selecting a wireless network for a plurality of mobile client terminals. The method comprises monitoring at least one network selection parameter of each of a plurality of wireless networks in a plurality of different geographical areas, identifying a group of the plurality of wireless networks which are available for providing a network service to a first of a plurality of mobile client terminals in one of the plurality of different geographical areas, selecting at least one member of the group according to respective the at least one network selection parameter, and sending a network message instructing the first mobile client terminal to establish automatically a connection via the at least one member.
Wireless network connection method of electronic device and electronic device thereof
A wireless network connection method of an electronic device is provided. The electronic device has an access point (AP) mode and a station (ST) mode. When the electronic device starts a wireless network connection function, the electronic device is switched to the ST mode. Electronic devices in the AP mode are searched within a nearby area. If no electronic device in the AP mode is found, the electronic device is switched to the AP mode to automatically connect to a wireless network, and wireless network services are provided to other electronic devices in the ST mode in the nearby area. If electronic devices in the AP mode are found, the weights of the electronic devices are respectively calculated to set one of the electronic devices as a primary AP, and the electronic devices other than the primary AP are allowed to connect to the wireless network through the primary AP.
Wireless communication device, wireless communication method and communication control program
A wireless communication device includes: a first wireless communication unit configured to receive a beacon signal when the first wireless communication unit is connected to a first wireless communication network; a second wireless communication unit configured to perform data communication through a second wireless communication network when the first wireless communication unit is not connected to the first wireless communication network; and a control unit configured to detect, from a signal from the first wireless communication network, a parameter concerning intervals at which the first wireless communication unit receives the beacon signal, and configured to perform control, based on the detected parameter, as to whether or not to disconnect connection to the first wireless communication network.
Base station device and user device
A base station device eNB according to the embodiment is provided with a Capability signal reception unit 202 configured to receive, from a user device UE, a Capability signal that notifies whether there is a capability to simultaneously transmit an uplink signal in an allocated discontinuous frequency band, and the Capability signal is configured to be notified for each operation band.
Frequency sub-band selection in wireless communications
This document discloses a solution where a network element of a cellular communication system detects appearance of a terminal device in the cellular communication system. In connection with registering the terminal device in the cellular communication system, the network element determines that a native frequency band of the terminal device is a sub-band of an operating frequency band of the cellular communication system and, then, allocates to the terminal device frequency resources from the native frequency band of the terminal device.
State synchronization of access routers
Embodiments describe synchronizing access routers with wireless terminal state information. According to an embodiment is a wireless terminal that transmits a message that includes an address for at least two access routers. State change information can optionally be included in the message. According to another embodiment is an access router that receives a state change notification from a wireless device or another access router. The state change notification is updated in the access router. An acknowledgment confirming the updated state change may be sent to the wireless terminal. Dynamic state synchronization is provided with minimal communication with wireless terminal.
Method for transmitting control channel to relay node in wireless communication system and apparatus thereof
A method for receiving a Relay Physical Downlink Control CHannel (R-PDCCH) by a User Equipment (UE) in a wireless communication system. The method includes receiving a downlink subframe including one or more aggregated resource blocks including resource elements. The resource elements are mapped in increasing order of first a subcarrier index, and then a symbol index. The method further includes monitoring the R-PDCCH on the one or more aggregated resource blocks. The one or more aggregated resource blocks are numbered based on an aggregation level and a number of the one or more aggregated resource blocks corresponding to the aggregation level.
Adaptive uplink/downlink timeslot assignment in a hybrid wireless time division multiple access/code division multiple access communication system
A method and apparatus for adaptive uplink/downlink resource assignment may include determining uplink interference associated with each of several uplink resources. The method and apparatus may produce an uplink list with values for the uplink resources. The values may include one value indicating high interference and another value indicating low interference. The method and apparatus may compare a downlink power level to a threshold for each of the downlink resources and produce a downlink list indicating which of the downlink resources have a downlink power level which exceeds the threshold. Also, the method and apparatus may send the uplink list and downlink list. Further, the method and apparatus may receive an uplink list and a downlink list from each of several neighboring wireless network devices. The method and apparatus may assign uplink and downlink resources to a user equipment based on the uplink and downlink lists received.
Method and system for determining physical uplink control channel resources
A method and system for determining physical uplink control channel resources are disclosed in the present document, a terminal determines a frequency domain resource, namely a location of a physical uplink control channel format 3 in total physical uplink control channel areas, used when the physical uplink control channel format 3 is sent according to parameters configured by a base station, and the location is determined according to a set location relationship. One location relationship is: from a bandwidth edge to a bandwidth center, the total physical uplink control channel areas including in turn a physical uplink control channel format 3 area, a physical uplink control channel format 2/2a/2b area, a hybrid resource block and a physical uplink control channel format 1/1a/1b area. In the present document, a feasible scheme is provided for determining resources of the physical uplink control channel format 3, which improves the system performance.
Method for transmitting/receiving control channel in multicell cooperative wireless communication system and device therefor
Disclosed is a method for a terminal to receive a control channel in a wireless communication system. More particularly, the present invention comprises the steps of: receiving a common control channel from a base station; determining an effective channel between the base station and the terminal according to a flag bit of the terminal being indicated in the common control channel; and receiving a terminal specific control channel from the base station on the basis of the effective channel, wherein the terminal specific control channel is space-multiplexes with terminal specific control channels of other terminals controlled by the base station.
Radio base station and communication control method
An LTE base station 10-1 reserves uplink resource blocks for urgent communications and downlink resource blocks for urgent communications, when ETWS information is transmitted from a core network 30 to mobile terminals 40. The LTE base station 10-1 releases the uplink resource blocks for urgent communications and the downlink resource blocks for urgent communications when a predetermined time elapsed from the reservation of them and when an amount of calls between the LTE base station 10-1 and the mobile terminals 40 is at or below a fourth predetermined value.
The present invention has an object to provide a communication system capable of appropriately providing services while improving a data rate using carrier aggregation. In Step ST1408, of a cell1 and a cell2 of a base station A, RRC connection is established between the cell1 and a UE, and the cell1 becomes a primary cell (PCell). Then, in Step ST1418, the cell1 determines to configure the cell2 as a secondary cell (SCell) to be aggregated with the own cell. Then, the cell1 notifies the UE of the above in Step ST1419. Upon this notification, the operation of restricting access to the cell2 from the UE is stopped by an MME, and thereafter, communication between the UE and the cell2 is started in Step ST1422.
Low energy wireless proximity pairing
A method of pairing devices includes causing a Bluetooth-enabled host device and a Bluetooth-enabled peripheral device to be located proximate to each other, the Bluetooth-enabled host device comprising at least a processor, a memory and an antenna, in the Bluetooth-enabled host device, detecting advertising packets broadcast by the Bluetooth-enabled peripheral device on one or more of a plurality of advertising channels, saving a numeric indicator of each of multiple detected advertising packets, determining an average numeric indicator from the saved numeric indicators of each of the separately detected advertising packets, if the average numeric indicator exceeds a proximity threshold, determining whether a set of conditions are met, and initiating a Bluetooth device pairing sequence between the Bluetooth-enabled host device and the Bluetooth-enabled peripheral device if the set of conditions are met.
Method of sensing in a radio system employing opportunistic spectrum access
In a radio system where wireless nodes are in contact, the wireless nodes are enabled to exchange information with adjacent nodes. In addition, distant nodes out of range for direct communication can be communicated with by forwarding data over multiple hops. The wireless nodes are configured to perform sensing of at least one radio resource. A node can be adapted to combine the sensing measurement data into a sensing result, such as an estimate of the probability of whether the resource is free or not. The sensing performed in a node is distributed to at least one other wireless node. Each wireless node can, therefore, access sensing information from at least one other wireless node located in the vicinity of the wireless node. Based on the collective information from at least one other node, a wireless node can make an improved decision if a particular radio resource is free to use or not.
Techniques for enabling compatibility of ultra wideband devices
A method (200) for enabling compatibility of wireless devices having different regulation settings. The method includes upon initialization of a wireless device, scanning a predefined common channel (S220); forming a WiNet service set (WSS) by wireless devices communicating over the predefined common channel (S230); upon switching of the wireless devices in the WSS to a channel other than the predefined common channel, checking if a new wireless device attempts to join the WSS (S240, S250); and adding the new wireless device to the WSS if such attempt was detected (S290).
Orthogonal frequency division multiplexing symbol distributing method and system for multimedia broadcast multicast service single frequency network sub-frame
The present invention provides an Orthogonal Frequency Division Multiplexing (OFDM) symbol distributing method for Multimedia Broadcast multicast service Single Frequency Network (MBSFN) sub-frame. According to the uniform configuration rules, an OFDM symbol distributing system distributes the OFDM symbols in all MBSFN sub-frames bearing the transmission of the Multi-cell transmission Multimedia Broadcast Multicast Service (MBMS) in the MBMSFN domain. The present invention also correspondingly provides an OFDM symbol distributing system for MBSFN sub-frame. By configuring the OFDM symbols occupied by the PDCCH in the MBSFN sub-frame bearing the Multi-cell transmission MBMS, the present invention increases the frequency of the OFDM symbol that is occupied by the PDCCH bearing the MBMS in the MBSFN sub-frame, so as to effectively use the resource and avoid the interference to the PDCCH due to the MBMS data transmission to a certain extent.
Base station, radio communication system, and communication method
A base station includes a connection processing unit that performs connection processes between user terminals registered in a user terminal registration unit and the base station, and between user terminals other than the user terminals registered in the user terminal registration unit and the base station; a resource amount measurement unit that measures an amount of resources utilized by the base station; and a call disconnection user terminal selecting unit that selects, when the resource amount measurement unit measures that the amount of the resources is greater than or equal to a predetermined threshold value, the user terminal for which a call is to be disconnected, among the user terminals other than the user terminals registered in the user terminal registration unit. The connection processing unit disconnects a connection with the user terminal for which the call is to be disconnected.
Mobile communication devices and location registration methods
A mobile communication device with a wireless module and a controller module is provided. The wireless module performs wireless transceiving to and from a first service network. The controller module transmits a location update request message to a first cellular station of the first service network via the wireless module, and receives a location update rejection message, which comprises a rejection cause indicating a network related failure, from the first cellular station via the wireless module. Also, the controller module transmits another location update request message to a second cellular station of the first service network via the wireless module in response to the location update rejection message. Particularly, the first cellular station and the second cellular station belong to a first location area and a second location area, respectively.
Networked navigation and ranging methods
A system and method for calculating a range delay is presented. A method begins by transmitting a first message at a first transmit time at a lower layer of a first node to a second node. A first service primitive is sent is sent to an upper layer associated with the first node with the first transmit time. A second message is received at the lower layer containing a first receive time of the first message at the second node. A second receive time of the second message is determined and sent with a second service primitive with the first receive time to the upper layer. A range delay is calculated in the upper layer based on one or more of the first transmit time, the first receive time and the second receive time.
Method and apparatus for using supported network information for positioning
Techniques to support positioning for terminals in Secure User Plane Location (SUPL) are described. A SUPL Enabled Terminal (SET) may receive supported network information from a SUPL Location Platform (SLP), which is a location server in SUPL. The supported network information may indicate one or more radio access networks supported by the SLP, one or more types of measurement supported by the SLP, and/or information that the SET is allowed to send to the SLP. The SET may send network measurement information for a supported radio access network to the SLP. The network measurement information may include cell and/or access point (AP) information for one or more access points or base stations in the supported radio access network. The SLP may determine a location estimate for the SET based on the network measurement information from the SET.
Interference management utilizing power control
Interference that occurs during wireless communication may be managed through the use of fractional reuse and other techniques. In some aspects fractional reuse may relate to HARQ interlaces, portions of a timeslot, frequency spectrum, and spreading codes. Interference may be managed through the use of a transmit power profile and/or an attenuation profile. Interference also may be managed through the use of power management-related techniques.
Dynamic power class re-registration of mobile devices
Dynamic power class re-registration of wireless devices is provided. A wireless device can exchange data with a communications network. While exchanging data, the device can monitor its usage and based on the usage, generate a power change request. The device can then send the power change request to the communications network, prior to or in conjunction with powering down the device. In this regard, the communications network can receive the power change request, generate instructions for the wireless device, and adjust network resources based on the power change request. The instructions can then be sent to the wireless device. Since the device re-registers its power class with the communications network, handoffs, internetwork thresholds, network resources and other network parameters can be adjusted to compensate for the changed power class resulting into improved service for a user of the wireless device.
Apparatus and method of handling MBMS service in a wireless communication system
A communication device in a wireless communication system, for handling a multimedia broadcast multicast service (MBMS) service is disclosed. The communication device comprises an application module, for determining a state of a display device of the communication device; and a modem module, coupled to the application module, for receiving the MBMS service according to the state.
Method for operation in idle mode for M2M communication, and device using same
Provided are an operation method for M2M (machine to machine) communication and a device using same. M2M equipment receives a paging message including a resource offset for indicating an offset for uplink allocation. The M2M equipment transmits a ranging request message using the uplink allocation.
Power conservation techniques for use in devices with selectable power modes
Techniques are provided which may be implemented in various methods, apparatuses, and/or articles of manufacture for use in and/or with an electronic device that is operable in a plurality of selectable power modes, including at least a “higher power mode” and a “lower power mode”. In an example implementation, with an electronic device operating in a higher power mode may selectively transition to a lower power mode based, at least in part, on at least phase value obtained from a signal acquired from a ground-based transmitter. Further techniques are provided which may be implemented to allow electronic device to selectively transition from a lower power mode to one or more other selectable power modes, e.g., including various “medium power modes”, and various “higher power modes”.
System and method for polling a network service
A method of operating a mobile device is provided, the method comprising: pairing the mobile device with a second device; having the second device poll a network service on behalf of the mobile device; and obtaining data provided by the network service. A method of operating on behalf of a mobile device is also provided, the method comprising: pairing a second device with the mobile device; polling a network service on behalf of the mobile device; and enabling data provided by the network service to be sent to the mobile device.
Active network system for wireless computer networks
An active network system for a host device with a host processor, comprises a wireless port including a first physical layer/medium access control (PHY/MAC) device. A first wired port includes a second PHY/MAC device. A secondary processor communicates with the wireless port, the first wired port and the host processor. The secondary processor, the wireless port and the first wired port support network functionality when the host processor is an inactive mode. The network functionality includes at least one of access point functionality, router functionality, repeater functionality, point-to-point functionality and point-to-multipoint functionality.
Apparatus and method for selecting WPAN based adaptive RF interface
A method and apparatus for selecting a wireless personal area network (WPAN) based adaptive radio frequency (RF) interface. The method includes obtaining RF interface information by establishing a WPAN based network connection with a target RF device; selecting an RF interface from among a plurality of RF interfaces using the obtained RF interface information, based on characteristics of applications and a network load; and establishing the selected RF interface by negotiating about the selected RF interface with the target RF device.
Method, device, and system for transmitting packet switched services
A method, a device, and a system for transmitting Packet Switched (PS) services are provided. The method includes: receiving an Activate Packet Data Protocol (PDP) Context Request message of PS services sent by a User Equipment (UE), in which the Activate PDP Context Request message carries an Access Point Name (APN) for identifying a first service network or a second service network (s201); establishing a corresponding transmission channel according to the APN (s202); and transmitting the PS services to the corresponding service network through the established transmission channel (s203). Through the method and the device, different networks are selected to transmit the PS services according to the APN for identifying different networks in the Activate PDP Context Request message of PS services sent from the UE, thereby implementing distribution of the PS services.
System acquisition at a mobile device
Methods, systems, and devices are described for system acquisition at a mobile device. A scan list including a plurality of entries may be stored at the mobile device. Each entry may include at least one connection parameter for connecting to a cellular system associated with the entry. A connection may be established with a target cellular system at the mobile device. A connection time with the target cellular system may be measured at the mobile device. A time-based entry including at least one connection parameter for the target cellular system may be added to the scan list based at least in part on the measured connection time with the target cellular system. Other aspects, embodiments, and features are also claimed and described.
Controlling radio emission from a mobile terminal in a critical area
Methods and arrangements (400, 600) in network nodes (101, 102, 110) for controlling radio emission from a mobile terminal (102) are provided. The mobile terminal (102) is located in a critical area. The network node sends a location parameter of the critical area, wherein the location parameter indicates a geographical location of the critical area. The first radio network node (101, 110) sends a first set of control parameters to the mobile terminal. The mobile terminal determines a geographical location of the mobile terminal and controls radio emission from the mobile terminal based on the first set of control parameters, the location parameter and the geographical location of the mobile terminal. Methods and arrangements (900) in a first radio network node (101, 110) for performing admission control are provided. The first radio network node (101, 110) receives a service request. In another step, the first radio network node (101, 110) denies the service request if an aggregated number of mobile terminals attached to the first radio network node (101, 110) exceeds a predetermined mobile terminal number or total received power at the first radio network node exceeds a predetermined threshold.
Control apparatus, control method, and mobile communication system
In a control apparatus, to control operations with a first base station forming a first radio section and a second base station forming a second radio section which is overlaid with the first radio section and has relatively lower transmission power, a connection change determination unit determines whether to perform connection in response to a connection destination change request from a mobile terminal, a measurement unit measures communication conditions from the first or second base station about all mobile terminals existing in the first radio section, a change value determination unit determines a change value of transmission power of the second base station, a prediction unit predicts communication conditions after transmission power of the second base station is changed based on the change value, and a power change unit changes transmission power of the second base station based on the change value.
Systems, methods, and computer-readable media for network handovers are provided. An eNodeB of a fourth generation mobile telecommunications network identifies available channels of a third generation mobile telecommunications network in which to handover user devices. Once an available channel is identified, the user device may be handed off to the available channel without unnecessary latency.
Status report triggering in wireless communication system
A method for status report triggering in a wireless communication entity is disclosed. The method comprises receiving a data unit segment wherein the data unit segment is a portion of an original data unit that has been re-segmented for transmission into a plurality of data unit segments. Then, determining that the data unit segment includes a last segment flag indicating that the data unit segment is a last segment of the plurality of data unit segments. Further, transmitting a status report containing a status report for the re-segmented data unit in response to determining that the data unit segment includes a last segment flag indicating that the data unit segment is a last segment.
Distributed load control the mobile communication network
A base station determines whether the base station is in an overload state on the basis of an available resource of the base station and a load state of a mobility management entity (MME), and transmits the call setup request to MME if the base station is determined to be in a non-overload state. MME determines whether MME is in the overload state on the basis of an available resource of MME and a load state of a gateway according to the call setup request transmitted from the base station, and transmits the call setup request to the gateway if MME is determined to be in the non-overload state. The gateway determines whether the gateway is in the overload state according to the call setup request transmitted from MME, and performs a call setup procedure if the gateway is determined to be in the non-overload state.
System and method for reduced interruption time in mobile communications
A method and mobile communication device that reduce communication interruption time when a base station stops operating are described. The mobile communication device is wirelessly connected to a cell operated by a base station. The method includes determining a fallback cell, obtaining parameters to quickly establish a wireless connection to the fallback cell, determining that the base station is stopping operation, and using the parameters to quickly establish a wireless connection to the fallback cell. Also described are a base station and method for the base station to reduce communication interruption time. The method includes determining that the base station is stopping operation, switching to a backup power source if the base station is stopping operation due to loss of power, and transmitting a message to the mobile communication devices connected to the base station that they should switch to a fallback cell, since the base station is stopping operation.
Method and network node in a communications system
The present disclosure relates to a method and a network node 100 in a wireless communications network 1. In particular, it relates to selecting a frequency band for operation for user equipment 9 in the wireless communications network 1. The frequency band to be selected is either a licensed frequency band or an unlicensed frequency band. The network node 100 is a macro base station 5, or a home base station (7, 700), and is adapted to communicate with user equipments 9 in the wireless communications network 1 which comprises both the macro base station 5 and the home base station (7, 700). The home base station (7, 700) is adapted to support operation in both the licensed frequency band and the unlicensed frequency band. The method comprises obtaining radio condition measurements performed on the licensed frequency band and/or on the unlicensed frequency band; selecting the frequency band, based on the obtained radio condition measurements; and updating the home base station of the selected frequency band to be used for communication with one or more of the user equipments.
Method and system for UMTS HSDPA shared control channel processing
Aspects of a method and system for processing control channel signals may include calculating at a receiver, for a portion of a sub-frame of each one of a plurality of control channels, first and second quality metrics. A control channel may be selected on the basis of the quality metrics. The calculating and selecting may be done for a first slot of a corresponding sub-frame. A validity of a selected control channel may be determined based on a CRC derived from decoding the selected control channel's sub-frame.
Uplink signal bandwidth characterization from channel state information
Techniques are provided to determine whether or not incident power at a wireless communication device in at least two frequency channels is from the same device. Incident power in frequency channels allocated to a basic service set in a wireless network is received at a plurality of antennas of the wireless communication device. Channel state information is computed for at least two frequency channels allocated to the basic service set. One or more metrics are generated based on the channel state information in the two frequency channels. The one or more metrics are evaluated to characterize an uplink signal bandwidth associated with the two channels to determine whether or not the incident power in the two channels is from the same device.
Apparatus and method of managing radio bearer in wireless communication system
A method and apparatus of managing a radio bearer is disclosed. A relay node (RN) sets up at least one UuRB for a Uu interface between a user equipment (UE) and the RN and a UnRB for a Un interface between the RN and a base station (BS). The at least one UuRB is mapped to the UnRB according to quality of service (QoS) guaranteed by the at least one UuRB to setup a RB between the UE and the BS.
Reducing spectrum interference between wireless networks
A method and apparatus for reducing spectrum interference between wireless networks. This is realized by arranging at least one sub-coordinating apparatus, namely, a monitoring apparatus, in respective wireless network, and by arranging a coordinating apparatus, namely, an allocation apparatus in the whole network. Wherein, the sub-coordinating apparatus monitors the spectrum utilization situation of the wireless network where it is located, reports it to the coordinating apparatus, and requests the coordinating apparatus for spectrum resource when new spectrum resource is needed. The coordinating apparatus maintains the spectrum utilization information of each wireless network, and allocates appropriate spectrum resource to the sub-coordinating apparatus which requests spectrum resource based on the maintained information. Therefore, the interference of inter-wireless networks is reduced or even avoided through such overall management that the coordinating apparatus allocates corresponding spectrum resources to a plurality of wireless networks capable of sharing spectrum resources.
System to determine permission to contact
Embodiments of the invention relate to systems, methods, and computer program products for determining permission to contact. The system, method, and computer program product are configured to determine a contact for a customer; determine when a merchant has received explicit denial to communicate with the customer via the contact; determine when the contact requires permission to communicate with the customer; and determine when permission has been received to communicate with the customer. The system can be used to comply with regulations for when a contact, such as a phone number, may be contacted using automatic dialing technologies.
System and method for cloning a Wi-Fi access point
Systems and methods for cloning a Wi-Fi access point. A determination is made by a network monitoring device to transition communications between a Wi-Fi device and a first access point (AP) to a second AP. The SSID and the security configuration information, and, optionally, network address translation (NAT) information of the first access point are acquired and provided to a second AP. The second AP instantiates the SSID and the security configuration information and, optionally, the NAT information. The networking monitoring device directs the first AP to cease using the SSID and the security configuration information and, optionally, the NAT information in response to receipt of confirmation that the second AP has instantiated the SSID and the security configuration information and, optionally, the NAT information of the first AP.
Method for 802.1X authentication, access device and access control device
In a method for 802.1X authentication, used in a network which comprises an access device and an access control device, a WLAN security template and a 802.1X client template is enabled at the access device, a 802.1X client template is enabled at the access device, and a 802.1X device template is enabled at a tunnel port of the access control device. The access control device establishes a 802.1X authentication tunnel with the access device, receive a packet transmitted by a client at the access control device through the 802.1X authentication tunnel, authenticates the client after receiving the packet, and assists the access device through the 802.1X authentication tunnel to obtain a session key.
Configurable integrated radio processor
In a base station, a configurable radio unit allows for communication with a baseband processor that satisfies a CPRI standard while allowing personalization and customization by the end user in order to prevent undesired usage and/or access by other users/competitors. The radio module is programmable to allow for specific designation of the location, lengths, and types of signal and control information within CPRI basic frames. By being configured to allow for the adjustment of these parameters, the radio module can be commonly and mass produced while allowing for end users of the processors to personalize their use without additional hardware components, such as FPGA circuits. In addition, by generating a container frame, the radio module can allow for asynchronous communication between the CPRI standard and an employed communication scheme.
Communication control apparatus, system, and method therefor
In a communication control method for wireless communication between a first communication device and a second communication device through a wireless communication unit, identification information is notified from the second communication device to the first communication device by using a communication unit other than the wireless communication unit. Wireless communication between the first and second communication devices is performed by the wireless communication unit using the first communication parameter shared in advance, and authentication processing based on identification information is performed. When authentication is acquired by this authentication processing, the second communication parameter to be set with respect to a wireless communication unit is shared by the first and second communication devices through the above wireless communication. Parameters for wireless communication between the first and second communication devices are set in the wireless communication unit by using the second communication parameter shared in this manner.
Multi-antenna distribution of wireless broadband in a building
The disclosed embodiments include methods and systems for distributing a broadband wireless signal in a building. The disclosed methods and systems feature a wireless broadband transmitter associated with multiple base antennas, where the base antennas are inserted into one or more ducts of the ventilation system of the building. Communication between the transmitter and receivers within the building may be optimized by selecting, modifying or controlling a configuration parameter of at least one of the multiple base antennas to enhance distribution of the wireless broadband signal within the ducts of the ventilation system and between the transmitter and device receivers.
Methods and systems for algorithmically balancing cost and performance of cellular data connections in multipurpose communications gateways
Embodiments of the invention provide methods and systems for algorithmically balancing cost and performance of cellular data connections in multipurpose communications gateways and other cellular enabled devices. A preferred mode of operation is determined. The preferred mode of operation can be selected from a plurality of modes of operation, each one being-sensitive to cost, coverage, or bandwidth considerations, or any combination thereof. Balancing logic receives information from a multipurpose communications gateway or other cellular device and algorithmically balances cost and performance considerations based on the preferred mode of operation and the received information. The balancing logic can cause the communications gateway or other cellular device to automatically switch telecommunications carriers, plans, and/or cellular networks to achieve enhanced performance and reduced costs.
Method and apparatus of providing a proximity-based service for public safety with one or more user equipments out of the cellular network coverage
A method and a user equipment (UE) are described for performing a proximity-based service (ProSe) in a cellular communication system. The UE is a public safety (PS) ProSe-enabled UE that is a member of a ProSe Group. At least one UE of the ProSe Group is not served by a cellular network, and an apparatus therefore. The PS ProSe-enabled UE checks whether it is in a location served by the cellular network, and transmits first information related to the ProSe Group to the cellular network if a condition is satisfied. The PS ProSe-enabled UE transmits a notice to a leader UE of the ProSe Group for informing that the PS ProSe-enabled UE is in a state that can be served by the cellular network when the PS ProSe-enabled UE is in the location served by the cellular network as a result of the check operation.
Method and system for distributed infrastructure for streaming data via multiple access points
Methods and systems for distributed infrastructure for streaming data via multiple access points. Aspects of one method may include apportioning multimedia information among a plurality of transmitting devices based on feedback channel information received from a destination receiving device by, for example, a transmission controller device. The transmitting devices may transmit the multimedia information to the destination receiving device. A transmitting device that may not be apportioned multimedia information may transmit a probing signal. The destination receiving device may generate feedback channel information for a transmitting device, for example, based on the multimedia information or the probing signal received from the respective transmitting device. The apportioning of the multimedia information may be dynamically adjusted based on updated feedback channel information received from the destination receiving device.
Decision support information is exchanged over a secure wireless network among mobile computing devices, and also optionally a central command computer. Each of the mobile computing devices has one or more sensors connected and interfaced to it. Output data from the sensor(s) can be sent over the network to one or more other devices on the network. A command for a sensor also can be sent over the network to cause the sensor to take some action such as turning on or turning off. The mobile computing devices on the network automatically share plug-in software components needed by any of the devices to view transmitted sensor output data and/or act on sensor commands.
Calendar integration methods and systems for presentation of events having combined activity and location information
A method includes receiving geo-location data collected over time period. The geo-location data is associated with a monitoring device. The method further includes receiving motion tracking data of the monitoring device. The motion tracking data is collected over time period. The method includes identifying one or more activities. The activities are identified based on inference rules that identify certain activities to have occurred when at least part of the motion tracking data is correlated to the received geo-location data. The method further includes defining a metric for one or more of the identified activities. The metric is associated to a calendar date. The method includes sending the metric to a calendar application with integration instructions. The integration instructions define the calendar date to which the metric will be added.
System and method for providing dynamic supply positioning for on-demand services
A method for providing on-demand service information is provided. One or more processors determine, for a given geographic region, position information for each of a plurality of requesters for an on-demand service and position information for each of a plurality of service providers that can provide the on-demand service. A plurality of sub-regions is identified for the given geographic region. Based, at least in part, on the position information of the requesters and the service providers, one or more sub-regions are determined as being under-supplied by the plurality of service providers as compared to one or more other sub-regions. Information identifying the under-supplied sub-regions are provided to one or more service provider devices.
Methods, systems, and computer readable media for optimization of bearer resources for IMS roaming
Methods, systems, and computer readable media for optimization of bearer resources for IMS roaming are disclosed. According to one aspect a system for optimization of bearer resources for IMS roaming includes a home media resource function controller module (HMRFC) for managing local media resources and for selecting a visited media resource function controller module (VMRFC) to provide media resources to a home subscriber that is roaming in the visited network (“visiting subscriber”), and a VMRFC for managing media resources within the visited network and for providing media resources to the visiting subscriber in response to a request to provide media resources to the visiting subscriber.
System and method for restricting communications at a network level
The disclosed embodiments include a method, apparatus, and computer program product for restricting communications at a network level. For example, one disclosed embodiment includes a system that includes at least one processor and at least one memory coupled to the at least one processor. The memory stores instructions that when executed by the at least one processor performs operations that includes receiving location coordinates such as, but not limited to, a building's coordinates, a name of a business, and a freeform shape that defines a boundary. The operations include restricting, at the network level, communications associated with a device determined to be within a boundary corresponding to the location coordinates.
Positioning using observer-based time-of-arrival measurements
A method of determining a position of a target device includes: sending a first measurement signal from a first known-position device; receiving the first measurement signal at a second known-position device; receiving a first acknowledgement signal from the target device at the first known-position device and at the second known-position device; determining the position of the target device using first timing information associated with the first measurement signal and the first acknowledgement signal, a first position of the first known-position device, and a second position of the second known-position device.
Correlating media types of emergency communication requests
Systems, methods, and software for correlating media types of emergency communication requests in wireless communication networks are provided herein. In one example, a method of operating a wireless communication system which routes communications between user devices and emergency service providers is provided. The method includes monitoring communication requests for emergency communication sessions between the user devices and service nodes of the emergency service providers to determine which media types of the communication requests are supported by the service nodes receiving the communication requests, identifying geographic locations of the user devices for the communication requests, identifying the service nodes receiving the communication requests, and creating a data structure correlating the geographic locations of the user devices and identifiers of the service nodes to the media types supported by the service nodes.
Integrated contactless signal transfer apparatus
An integrated contactless signal transfer apparatus makes use of the rule of filter design to transfer signal from a chip to the transmission lines of a PCB. The integrated contactless signal transfer apparatus includes a substrate, a chip disposed on the substrate, a first resonator unit disposed on the chip for receiving a first signal with a first frequency generated from the chip, a PCB positioned at a distance opposite to the substrate, and a second resonator unit disposed on the PCB. The first signal passes through the first resonator unit to generate a contactless coupling between the first and second resonator units, so the second resonator unit generates a second signal. The second signal has a second frequency substantially equal to the first frequency.
Virtual Trunking system
The present invention discloses a virtual trunking system developed on a value-added platform. At present, information islands are formed among different modes of trunkings, so that interconnection and intercommunication cannot be realized and interconnection and intercommunication of various trunkings with common communication network cannot be realized either. In the technical scheme adopted by the present invention, the virtual trunking system is characterized by comprising a mobile phone software module, a trunking dispatching desk, a terminal access server, a database server, an application server, a virtual trunking business module, a platform support module and a value-added platform, wherein the value-added platform is a CPCI (Compact Peripheral Component Interconnect) value-added platform which provides PCI (Peripheral Component Interconnect) slots and bus exchange; and the value-added platform accesses a public network through a digital relay or an IP (Internet Protocol). In the present invention, the value-added platform is interconnected with a public communication network and the mobile phone terminal serving as a client of the value-added platform is combined with the value-added platform, so that wireless trunking communication is realized.
Hearing aid with a pump arrangement
A hearing aid comprising a behind-the-ear unit comprising a pump arrangement which is fluidly connected to an inflatable part of an in-the-ear unit. The pump arrangement comprises one inlet valve and two outlet valves which are arranged in series. The valve leakage of the two outlet valves is not identical.
A hearing aid microphone assembly is configured for implantation into a subject and includes a microphone housing, the housing having a generally conical sound gathering portion with a proximal end and a distal end and a microphone support portion with one or more ports configured to receive a microphone and acoustically coupled to the distal end. A diaphragm is disposed over the proximal end of the housing to hermetically seal the sound gathering portion of the housing and create a first chamber. The microphone assembly is configured with either: (1) at least a first and a second port each coupled to a microphone; or (2) at least a first port coupled to a microphone and an accelerometer coupled to the housing. Each of the ports is configured to communicate acoustically with the first chamber. Any unused ports are sealed.
A piezoelectric speaker includes: a diaphragm which includes a substrate and a plurality of piezoelectric elements arranged on the substrate; and a frame for supporting the substrate at an outer peripheral portion thereof. The plural piezoelectric elements include first piezoelectric elements each having a first number of layers, and second piezoelectric elements each having a second number of layers, the first number of layers being larger than the second number of layers. Moreover, the second piezoelectric elements may be arranged farther from the center of the substrate than the first piezoelectric elements.
Interchangeable attachable extendable and retractable earpiece cable assembly for mobile communication and sound devices
An interchangeable, extendable and retractable audio earpiece cable assembly for a mobile electronic or sound device having an audio output port. A protective casing assembly is adapted to attach to the mobile communication or sound device. A platform assembly having a cable reel housing is removably attached to the protective casing assembly. A cable attached at one end to an earpiece retractably extends from the cable reel housing at another end.
Component having a micromechanical microphone structure
A micromechanical microphone structure configured as a layered structure includes: a semiconductor substrate; a diaphragm structure having an acoustically active diaphragm which at least partially spans a sound opening in the back side of the substrate and is provided with a movable electrode of a microphone capacitor, which diaphragm structure has openings via which pressure compensation occurs between the back side and the front side of the diaphragm; a stationary acoustically permeable counterelement having vents, which counterelement is situated in the layered structure above the diaphragm and which functions as a carrier for a nonmovable electrode of the microphone capacitor; and at least one ridge-like structural element which is situated at the outer edge area of the diaphragm, and which protrudes from the diaphragm plane into corresponding recesses in an adjoining layer.
Loudspeaker assembly configuration
Embodiments are provided for configurations of a loudspeaker and assembly of the loudspeaker. The loudspeaker configuration may include a circumferential spacer element having a first surface and a second surface. The first surface may be attached to an outer rim of a first suspension element. An inner rim of the first suspension element may be attached to an outer rim of a diaphragm. A central portion of the diaphragm may be coupled to a voice coil. The second surface may be attached to an outer rim of a second suspension element. An inner rim of the second suspension element may be coupled to a lower surface of the diaphragm. The circumferential spacer element has a structural shape configured to be coupled to a loudspeaker frame such that the voice coil may be suspended at least partially within a magnetic gap of a magnetic structure of the loudspeaker.
Audio processing apparatus
A pre-out terminal that outputs a left outside audio signal can be fixed and an increase of the number of DACs is prevented. In the case that a surround back left audio signal SBL and a left outside audio signal LW are included, the signal SBL is amplified and output to a surround back left SP terminal 14a through a switch S13a. The signal LW is amplified and output to a left outside SP terminal 14b through a switch S13c. The signal LW is supplied from a DAC 11b to a left outside pre-out terminal 11d through a switch S11c. At this point, in order to supply the signal LW to the left outside pre-out terminal 11d, a DAC 11c is not used, but the DAC 11b is used. Accordingly, the DAC 11c can be used for another signal (ex., ZONE2) to decrease the number of DACs.
Method and arrangement for processing of audio signals
Method and arrangement in an audio handling entity, for damping of dominant frequencies in a time segment of an audio signal. A time segment of an audio signal is obtained, and an estimate of the spectral density or “spectrum” of the time segment is derived. An approximation of the estimate is derived by smoothing the estimate, and a frequency mask is derived by inverting the approximation. An emphasized damping is assigned to the frequency mask in a predefined frequency range, as compared to the damping outside the predefined frequency range. Frequencies comprised in the audio time segment are then damped based on the frequency mask. The method and arrangement involves no multi-band filtering or selection of attack and release times.
Systems and methods for adaptive noise cancellation including dynamic bias of coefficients of an adaptive noise cancellation system
In accordance with method and systems of the present disclosure, a processing circuit may implement an adaptive filter having a response that generates the anti-noise signal from the reference microphone signal to reduce the presence of the ambient audio sounds heard by the listener, a coefficient control block that shapes the response of the adaptive filter in conformity with the error microphone signal and the reference microphone signal by adapting the response of the adaptive filter to minimize the ambient audio sounds in the error microphone signal, and a coefficient bias control block which biases coefficients of the coefficient control block towards zero in a range of frequencies outside of a frequency response of the source audio signal.
Loudspeaker protection apparatus and method thereof
An apparatus comprises at least one processor; and at least one memory including computer program code; the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to: determine at least one parameter of a transducer on the basis of received information; and modify a received signal for actuating the transducer on the basis of the determined parameters of the transducer and a frequency spectrum of the received signal. The apparatus protects the transducer from damage due to excessive displacement caused by the received signal.
Sound generator for an anti-noise system for influencing exhaust noise and/or intake noise of a motor vehicle
A sound generator 103 for an anti-noise system for influencing sound waves propagating in exhaust systems or intake systems of vehicles driven by an internal combustion engine includes a loudspeaker basket 123, a membrane 122 supported by the loudspeaker basket 123, a permanent magnet 121 supported by the loudspeaker basket 123, a voice coil 126 supported by a voice coil carrier 125 and a membrane stop 150. The voice coil 126 is located within a constant magnetic field generated by the permanent magnet 121. The voice coil carrier 125 is supported by the membrane 122. The membrane stop 150 is located on the loudspeaker basket 123 adjacent to the membrane 122. The membrane stop 150 includes a projection 151 extending towards the membrane 122. An anti-noise system using the sound generator and a vehicle using the anti-noise system are also provided.
Method and device for personalized voice operated control
An earpiece (100) and a method (300) personalized voice operable control can include capturing (302) an ambient sound from an Ambient Sound Microphone (111) to produce an electronic ambient signal (426), delivering (304) audio content (402) to an ear canal (131) by way of an Ear Canal Receiver (125) to produce an acoustic audio content (404) and capturing (306) in the ear canal an internal sound (402) from an Ear Canal Microphone (123) to produce an electronic internal signal (410). The electronic internal signal includes an echo of the acoustic audio content and a spoken voice generated by a wearer of the earpiece. The Method also includes detecting (312) the spoken voice in the electronic internal signal in the presence of the echo, and controlling (314) a voice operation of the earpiece when the spoken voice is detected.
Apparatus and method for protection in a data center
A manner of providing redundancy protection for a data center network that is both reliable and low-cost. In a data center network where the data traffic between numerous access nodes and a network core layer via primary aggregation nodes, an optical network device such as and OLT (optical line terminal) is provided as a backup aggregation node for one or more of the primary aggregation nodes. When a communication path through a primary aggregation node fails, traffic is routed through the optical network device. In a preferred embodiment, a communication link is formed from a plurality of access nodes to a single port of the OLT or other optical network device via an optical splitter that combines upstream transmissions and distributes downstream transmissions. The upstream transmissions from the plurality of access nodes may occur according to an allocation schedule generated when the backup aggregation node is needed.
Method and system for dynamically watermarking media
A dynamic watermark generation method and system in which the dynamic watermark may have a default length or a shorter length, and wherein the dynamic watermark is generated to have the determined length. The dynamic watermark is a locally-unique code that is used as an index to a database entry that identifies the subscriber that requested the media asset. In some instances, the entry may include a timestamp, a subscriber device identifier such as a MAC address or IP address, a subscriber identifier or ID number, and a media asset identifier such as a static ID. The static ID may include a code that indicates whether the dynamic watermark is of a default length or shorter. The length of the dynamic watermark may be partly based upon projected audience size for the requested media asset.
Television receiver enhancement features
One or more of a system, method, apparatus, and computer-program product to enable implementation of one or more features that together or separately enhance Quality of Experience or Quality of Service as a particular user interacts with a television receiver.
System and method for enhanced television and delivery of enhanced television content
Provided is an enhanced television system and method including a television receiver in communication with a broadcast reception tuner. The television receiver is configured to receive and display video data from a video stream and enhancement data from the reception tuner. The video stream includes embedded base programming identification metadata, and the television receiver is further configured to extract a base identification tag from the embedded base programming identification metadata, and combine enhancement data received from the reception tuner associated with the base identification tag with the video stream. The video stream may then be displayed.
Apparatus and methods for multicast delivery of content in a content delivery network
Methods and apparatus for providing persistent multicast delivery of content to devices within a network. In one embodiment, a webserver is provided to determine whether requested content is to be provided via a persistent multicast. If a multicast is not to be provided, the requesting device is instructed to query a unicast server. If a multicast is to be provided, the requesting device is instructed to query an entity for joining the multicast. After joining the multicast, the entity processes and provides the content to the requesting device as a unicast stream. In one variant, a web persistent port which is assigned by the entity to receive the multicast comprises a WebSocket compatible TCP port and the requesting device runs a WebSocket compatible media player. The webserver tracks requests to identify “popular” content to be delivered as a multicast. Content protection schemes and trick mode functions are also provided.
Program guide system with advertisements
An interactive television program guide is provided in which advertisements may be displayed on program guide screens. Banner advertisements may be displayed above and below program listings. Panel advertisements may be provided adjacent to program listings. The advertisements may contain video. The advertisements may be used to promote television programs and conventional goods and services. When a user selects an advertisement, the program guide provides the user with an opportunity to order products or services, request information, set reminders for upcoming programs, view program descriptions, record programs, or take other such actions. Embedded advertisements may be provided within the program listings region and may be automatically displayed immediately adjacent to related program listings.
Electronic device and method for providing information related to broadcast viewing
An electronic device and a method for providing view information are disclosed. A controller controls a request for broadcast rank to a relay server. A network interface receives a display page transmitted as a response to the request for broadcast rank. A display displays the received display page. The display page includes at least one feed associated with a real-time broadcast program and one of the at least one feed includes the number of users who view an associated real-time broadcast program.
Resource allocation and modification using statistical analysis
In one aspect, a computer-implemented method includes generating a workload using at least one schema defined by combinations of ranges of each of at least two attributes. The computer-implemented method also includes receiving a request to provide content. The computer-implemented method further includes provisioning the content based upon the workload.
Replacing ads in HTTP-based manifest driven video transport
Methods, systems, and apparatuses can replace content within a manifest driven streaming video program. A generic manifest file can be retrieved, original content within the streaming program can be identified for replacement, and a user specific manifest file can be generated that includes references to replacement content instead of the original content identified for replacement.
Interactive television program guide with selectable languages
An interactive television program guide is provided. The interactive television program guide provides a user with the opportunity to select a language for playing television programming and displaying program guide text. Television program audio in the desired language may be obtained from a SAP or digital audio track and played in the selected language. Television related information in the desired language may be obtained from a digital track. If television program audio or related information is not provided in the selected language, the program guide may use a default language. The program guide may coordinate program guide display screen text with languages available for television programs when the programs are broadcast to users.
Method and device for controlling bandwidth of set top boxes in internet protocol television (IPTV) system
A method and an apparatus are disclosed for controlling bandwidth of multiple Set Top Boxes of a single user in an IPTV system. The method includes saving content bandwidth of every media content by the EPG of the IPTV system; when receiving a start-up and log-in request or a request for switching programs of the present Set Top Box operating currently in multiple Set Top Boxes sharing an identical user bandwidth transmitted by the EPG, a Management Platform of the IPTV system sending the remaining user bandwidth corresponding to the present Set Top Box to the EPG; the EPG comparing the remaining user bandwidth with content bandwidth of every media content saved by itself, and generating a program list of media contents whose content bandwidths are less than or equal to the remaining user bandwidth for the present Set Top Box to select and use.
An electronic display is provided for facilitating authentication. The display may integrate one or more of a camera, microphone, fingerprint sensor, card reader, touch screen, and communication interface to collect biometric and other identification information to authenticate a user requesting access to the display. An integrated proximity or motion sensor may be used to track presence of the user. The user may be required to re-authenticate his identity after an absence from the display. The display may be a standalone device or may cooperate with an external computing device. The display may be configured to verify its identity to the external computing device. The display may be configured to perform its own authentication and authorization procedures before presenting content from an external device.
System for monetizing resources accessible to a mobile device server
A system that incorporates teachings of the present disclosure may include, for example, a non-transitory computer-readable storage medium operating in a mobile device server. The non-transitory computer-readable storage medium can include computer instructions to execute a web server application in the mobile device server. The web server application can be operable cause the mobile device server to detect a media resource center while roaming in a communication zone of the media resource center, transmit a pairing key to the media resource center, and receive from the media resource center authorization to pair with one or more resources selected by the media resource center according to the pairing key. In one embodiment a billing system can be operable to determine whether to apply a monetary charge to a subscriber account based on the pairing key. Other embodiments are disclosed.
Method for transmitting/receiving internet-based content and transmitter/receiver using same
The present invention relates to a method for transmitting/receiving contents through a network such as the Internet, and to a transmitter/receiver using same, the transmission method comprising: converting content stored in a file format into a delivery format; and transmitting the content converted into the delivery format using an IP packet, wherein the file format and/or the delivery format includes priority information for expressing whether data that makes up the content is played back in default.
Container agnostic encryption device and methods for use therewith
A video processing device for encrypting a compressed video signal that includes a key storage device for storing at least one encryption key. An encryption processing device retrieves the at least one encryption key from the key storage device, and directly encrypts an elementary bit stream into at least one encrypted elementary bit stream.
Encoding pre-roll advertisements in progressively-loading images
Some embodiments of the invention provide techniques for an advertisement mask and a target media content being jointly encoded, transformed, and progressively rendered for presentation to a user. Specifically, a request for the target media content by a user is received. The target media content and the advertisement mask are scaled and divided into equally sized blocks and, further, jointly encoded into a compressed media file. Transformation of the content of the compressed media file is followed by progressively loading and rendering the advertisement mask and a partially obscured view of the media content. As the target media content is transmitted and fully rendered, the advertisement mask gradually decreases in opacity until it is removed for presentation of the fully-rendered target media content.
Method and device for generating and detecting a fingerprint functioning as a trigger marker in a multimedia signal
A device is configured to perform a method that detects a trigger marker for an action corresponding to a segment of a multimedia signal. A fingerprint is generated based on the segment of the multimedia signal at a trigger time point. The generated fingerprint is stored in a database and communicated to the device. During playback of the multimedia signal, fingerprints of segments of the multimedia signal are generated and matched against fingerprints in the database. When a match is found, one or more associated actions for the segment are retrieved by the device. The trigger time point may be determined as a time point near or at the segment of the multimedia signal with the matched fingerprint. In this way, trigger markers for actions may be enabled without modifying the multimedia signal.
Image encoder and method for encoding images
There is provided a method and a device for encoding a digital representation of an image into a single encoded image, comprising: generating at least two subsequent image data sequences each representing a portion of the digital representation of the image, inputting to an encoder (104) each of said subsequent image data sequences as if each image data sequence is an individual digital representations of an image, encoding each subsequent image data sequence into a variable length coded image, thereby generating at least two variable length coded images each representing a portion of the single encoded image, inserting a restart marker as terminating data of at least one of the variable length coded images, inserting an end of image marker as terminating data of one of the variable length coded images representing a final portion of the single encoded image, and associating the variable length coded images with each other by arranging them as subsequent parts of a single encoded data sequence representing the single encoded image.
Image processing device, image processing system and method for having computer perform image processing based on sub-block coding unit
According to one embodiment, an image processing device includes an encoder, a sub-block selector, an image processor, and a decoder. The encoder generates coded data by encoding an input bit stream of image data including plural blocks in a block unit of a predetermined number. The sub-block selector selects at least one sub-block from the coded data. The sub-block includes a request area on which an image processing is performed, and which is smaller than the block. The decoder decodes the sub-block to generate decoded data. The image processor performs the image processing on the decoded data to generate processed image data.
Reference picture list construction for generalized P/B frames in video coding
This disclosure relates to techniques for indicating that a video frame is coded as a generalized P/B (GPB) frame in order to reduce a cost of coding and constructing a second reference picture list in video coding. For a GPB frame, which has identical reference picture lists, signaling and constructing both the first and second reference picture lists may be redundant. The techniques of this disclosure may include coding syntax elements indicating that the video frame is coded as the GPB frame, and coding syntax elements indicating a number of reference pictures and reference picture list construction commands for only a first reference picture list. The techniques also include constructing the first reference picture list based on the syntax elements, and then creating the second reference picture list as a duplicate of the first reference picture list.
Image coding apparatus and image coding method
At least one exemplary embodiment is directed to an image coding apparatus configured to encode moving image data including: a coding unit configured to encode each picture in the moving image data in a unit of a first block; a luminance change detection unit configured to divide the moving image data into a plurality of second blocks and to detect a luminance change block in which a luminance change occurred from the plurality of the second blocks in one picture; and a code amount adjustment unit configured to increase an amount of code allocated to the first block if the first block corresponds to the luminance change block detected by the luminance change detection unit.
Display device and display method
There is provided a display device that includes a display portion and a drive compensation portion. The display portion line-sequentially displays, in an image display region, a first image based on a first image signal and a second image based on a second image signal, by sequentially switching the first image and the second image at a predetermined interval. The drive compensation portion performs predetermined drive compensation on the first image signal and the second image signal input to the display portion, in accordance with a position of the image display region, a luminance of the first image and a luminance of the second image. The predetermined drive compensation is performed such that an average luminance of the first image or the second image becomes substantially uniform in the image display region during a predetermined period that is shorter than the predetermined interval.
Display panel module, semiconductor integrated circuit, driving method of pixel array section, and electronic device
A display panel module includes: a pixel array section in which a sub-pixel formed by a self-luminous element of a current-driven type and a pixel circuit configured to drive and control the self-luminous element is arranged in a form of a matrix; a signal line driving section configured to drive a signal line; a writing control line driving section configured to control writing of a potential appearing in the signal line to the sub-pixel; and a power supply controlling section configured to control supply of driving power to the sub-pixel and stop of the supply of the driving power; wherein when either of a two-dimensional image and a three-dimensional image is displayed, the signal line driving section, the writing control line driving section, and the power supply controlling section operate in common driving timing set such that display periods of adjacent frames do not overlap each other.
Communication infrastructure including simultaneous video pathways for multi-viewer support
A communication system is described that allows co-located viewers to simultaneously consume different media content, such as different video content, via the same display screen, wherein video content delivered to at least one co-located viewer is not visible to the other co-located viewer(s). The communication system comprises an infrastructure that includes multiple pathways for delivering media content from one or more media sources to the eyes of each of the co-located viewers, wherein each pathway passes through the pixels of a pixel array included in the shared display screen. The pathways also include distributed or non-distributed processing circuitry that manages certain resources that are shared among the multiple pathways, wherein such shared resources may include shared display resources (e.g., pixels of the pixel array and light generated thereby) and shared data communication resources (e.g., bandwidth on data communication links and processing resources of nodes located on such links).
Three-dimensional display system, display and method of controlling backlight of three-dimensional display
A three-dimensional display system including a display and a pair of three-dimensional glasses having a light sensor is provided. The display includes a backlight driving module and a backlight module, wherein the backlight driving module modulates an original synchronization signal to generate a modulated backlight driving signal for driving the backlight module to generate a backlight. The display alternatively generates a left eye image and a right eye image according to a three-dimensional image signal. The three-dimensional glasses then determines whether the image output from the display is the let-eye image or the right-eye image based on the variation in brightness of the backlight generated by the backlight module of the display.
Stereoscopic image display device and stereoscopic image display method
A 3D tablet includes: a parallax image display unit which displays a stereoscopic image including a right-eye image and a left-eye image, between which there is parallax; a parallax barrier display unit which displays a parallax barrier having a stripe pattern and superimposed on the parallax image display unit to show the right-eye image and the left-eye image to a right and left eye of a user, respectively; a user position detection unit which obtains an orientation of the user relative to the parallax image display unit; a direction calculation and control unit which substantially collimates a longitudinal direction of the stripe pattern of the parallax barrier with the orientation of the user; and a parallax image generation unit which generates and displays, using the parallax image display unit, the stereoscopic image in which there is parallax in a direction substantially perpendicular to the orientation of the user.
Depth mapping using time-coded illumination
A method for depth mapping includes illuminating an object with a time-coded pattern and capturing images of the time-coded pattern on the object using a matrix of detector elements. The time-coded pattern in the captured images is decoded using processing circuitry embedded in each of the detector elements so as to generate respective digital shift values, which are converted into depth coordinates.
Forensics in multi-channel media content
Embodiments of the invention relate to encoding multi-channel media content. In one embodiment, a set of multi-channel media content is received. The set of multi-channel media content includes a plurality of content frames. Each content frame includes a first channel content frame and second channel content frame. Each of the first channel content frames is grouped into a first group of content frames. Each of the second channel content frames is grouped into a second group of content frames. Each content frame in the first group of content frames is encoded. At least a first content frame in the first group of content frames includes at least one variation, where the variation is a different version of the first content frame. Each content frame in the second group of content frames is also encoded, where the second group of content frames is absent any content frames including a variation.
Video encoding/ decoding method and apparatus for motion compensation prediction
A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included.
Display controller and related method of operation
A display controller includes a merger and an alpha blender. The merger is configured to mix a first left frame including first left pixel data and a first right frame including first right pixel data based on a three-dimensional (3D) display format, and further configured and to output a first mixed frame and a second mixed frame. The alpha blender is configured to blend the first mixed frame and the second mixed frame to produce a first blended frame.
Depth map coding to reduce rendered distortion
Several implementations relate to depth map coding. In one implementation, a depth coding rate, that results from coding one or more portions of a depth map using a particular coding mode, is determined. The depth map can be used to render video for a different view than that of the depth map. A depth map distortion, that results from coding the one or more portions of the depth map using the particular coding mode, is determined. A value of distortion for the rendered video, based on the depth map distortion and on a particular relationship between the depth map distortion and values of distortion for the rendered video, is determined. It is determined whether to use the particular coding mode to code the one or more portions of the depth map, and the determination is based on the value of distortion for the rendered video and the depth coding rate.
Error resilient rate distortion optimization for image and video encoding
Error resilient rate distortion optimization (ERRDO) is used for transmitting high quality images and video over constrained bandwidth networks, e.g., in streaming applications. Transmitting high quality images and video by reducing computational complexity is described.
Interactive television systems with conflict management capabilities
An interactive television system is provided in which a user can use an interactive television application to establish time-based settings. The user may set television program reminders, advance-order pay-per-view programs, schedule programs for recording, and establish parental controls to prevent television viewing during certain times on certain channels. The interactive television application may be used to support video recorder functions such as personal video recorder functions implemented locally on the user's set-top box or other equipment and network-based video recorder functions implemented using servers at cable television headends and other network locations. The interactive television application may also be used to deliver video-on-demand content. When the user requests that video be delivered, conflicts may arise between the requested video delivery and the previously-established time-based settings. The interactive television application may provide the user with on-screen options that allow the user to select how to resolve these conflicts.
Reproduction apparatus and method of controlling reproduction apparatus
A reproduction apparatus and method for controlling the reproduction apparatus includes acquiring an image capable of refocusing, acquiring audio associated with image capable of refocusing, and controlling a the timing of an output of the audio in accordance with the refocus position of the image.
Method of and apparatus for maintaining smooth video transition between distinct applications
A method and apparatus for maintaining smooth video transition between distinct applications includes a processor, a secondary memory and a system memory. In providing a smooth transition between applications, the apparatus and method provides synchronization of the video and graphics components while transitioning from a first application to a second application. If there is no video component in either application, no action is needed to provide a smooth transition between applications, and when only the first application includes a video component, the video component need only be turned off for smooth transition between the applications to occur. When both the first application and the second application include video components, smooth transition between the applications is dependent upon the display window size of the first application in comparison to the second application. A process is triggered according to the size of the display windows of the first and second applications.
Display device and play-back device having respective first and second interfaces
A display device includes a first interface, a second interface and a display circuit. The display device transmits a first connection confirmation signal to confirm connection, via the first interface to a playback device and receives a response signal in reply to the first connection confirmation signal, transmits a second connection confirmation signal to confirm connection, via the second interface to the playback device and receives a response signal in reply to the second connection confirmation signal, and makes a function to use the first and second interfaces between the display device and the playback device available if both response signals in reply to the first and second connection confirmation signals are received.
Systems for constant hue and adaptive color correction image processing
An electronic device may have a camera module. The camera module may capture images. The electronic device may include image processing circuitry that color corrects the images. The image processing circuitry may desaturate the images globally and/or spatially based on global and/or spatial noise levels of the image. The image processing circuitry may desaturate the images substantially without changing the hue of the images. The image processing circuitry may generate a color correction matrix with constant hue in real time and may color correct images in real time as the images are captured by the camera module.
Image indexed rendering of images for tuning images from single or multiple print engines
A system and method for rendering an image provide for segmenting the image into a plurality of segments based on image content and, for each identified segment, identifying a rendering profile from a set of rendering profiles. The rendering profile may include a look up table for converting pixels from a first color space, such as a device independent color space, e.g., RGB, to second color space, such as a device dependent color space, e.g., CMYK. The identified rendering profile is applied to the respective segment and the segments to which the profiles have been applied are combined into a print job for rendering on print media by an associated color output device or otherwise output. The system allows different segments in the image to be processed through different rendering profiles most suited to the objects that the segments contain.
Methods for transmitting and receiving audiovisual content
Method for transmitting and receiving audiovisual content in “push” environments without a return channel, in which a transmitter composed of at least one transponder transmits, to a set of receivers, each composed of a plurality of tuners, a transport signal comprising at least one audiovisual content channel, adapted to be received and directly reproduced in each receiver by virtue of the transponder which transmits said audiovisual content channel being tuned by each receiver, and a data channel associated with each audiovisual content channel, which comprises at least one audiovisual content, for the subsequent recording thereof in a storage device of each receiver.
Image forming apparatus with increased security for functional prohibitions
An image forming apparatus of the present disclosure includes: an output prohibition control unit that performs output prohibition control that prohibits outputting a registered job in a preset time period; a system administrator account information storage unit that stores account information of a system administrator who has an authority of temporal release of the output prohibition control; a temporal release control unit that performs the temporal release according to an instruction of the authenticated system administrator; a log information storage unit that stores temporal release information that identifies the system administrator who performs the instruction of the temporal release; a device administrator account information storage unit that stores the account information of a device administrator who has an authority to access the temporal release information and; a log information outputting unit that outputs the temporal release information only if an instruction is received from the authenticated device administrator.
Remote controller for setting mode according to state of broadcast receiving apparatus
A remote control apparatus for setting a mode according to a state of a broadcast receiving apparatus is provided. The remote control apparatus sets operation modes based on information regarding a state of a broadcast receiving apparatus received from the broadcast receiving apparatus. The operation mode of the remote control apparatus is automatically set based on information regarding a state of a broadcast receiving apparatus, so less power is consumed in the remote control apparatus.
Image processing and scanning apparatus identifying points having maximum density along a scanning direction so that binding position of input image is identified
An image processing apparatus includes a local maximum point identifying unit, a distribution deriving unit, and a binding position identifying unit. The local maximum point identifying unit is configured to identify positions of local maximum points of densities along a first scanning direction in an input image of a book. The distribution deriving unit is configured to derive a distribution in the first scanning direction of the number of the local maximum point obtained along a second scanning direction perpendicular to the first scanning direction. The binding position identifying unit is configured to identify a binding position in the input image of the book on the basis of a position of a peak in the distribution.
Solid-state imaging device and imaging apparatus
A solid-state imaging device includes a plurality of pixel cells arranged in rows and columns, a plurality of vertical signal lines each of which is provided for a corresponding one of the columns, and a plurality of column circuits each of which is provided for a corresponding one or more of the columns and into each of which are input the signal voltages output to one or more of the vertical signal lines disposed in the corresponding one or more of the columns. Each of the plurality of column circuits includes an amplifier that includes a constant current source transistor, the solid-state imaging device further includes a reference current source circuit that supplies a first bias voltage to gates of a plurality of the constant current source transistors included in the column circuits, and each of the column circuits further includes a sample-and-hold circuit that holds the first bias voltage.
Solid-state image pickup device, image pickup device, and signal reading method
A solid-state image pickup device includes: electrically coupled substrates on which circuit elements constituting a pixel are arranged; a photoelectric conversion element included in the pixel; a reading circuit that reads from the pixel, a signal based on a signal generated by the photoelectric conversion element; and first to n-th circuit sets each including a circuit element that reads a signal by a corresponding one of first to n-th reading modes. n is an integer such that n≧2. The circuit elements arranged on one of the substrates is used to complete operations from generation of the signal by the photoelectric conversion element to reading of the signal by at least one of the first to n-th reading modes. The photoelectric conversion element, the reading circuit, and at least one of the first to n-th circuit sets are arranged on the one of the substrates.
Picture delivering system based on visual cryptography and related computer program product
A picture delivering system is disclosed including: a picture generating device for outputting a flat picture corresponding to an encrypted picture and for providing a picture ID corresponding to the encrypted picture; and a picture presenting device for utilizing an optical imaging device to capture an image of the flat picture to generate a captured picture, for obtaining the picture ID, and for transmitting the picture ID to the picture generating device. When the picture presenting device passed an entity identification procedure, the picture presenting device obtains a decryption information, processes the captured picture according to the decryption information to obtain a decrypted picture, and then utilizes a display device to display the decrypted picture. The decryption information comprises at least one of a seed key, a mask picture, and a transposition table corresponding to the picture ID.
Multi-camera system and method of calibrating the multi-camera system
A multi-camera system and method of calibrating the multi-camera system uses at least one timer to synchronize cameras of the multi-camera system with respect to time. The cameras are used to capture images of the at least one timer. The images are then analyzed to adjust an image-capture timing parameter of at least one of the cameras to time synchronize the cameras.
Method and system of image capture based on logarithmic conversion
Image capture based on logarithmic conversion. At least some of the illustrative embodiments are methods including capturing an image by: reading a plurality of analog signals from an array of light sensitive elements; performing logarithmic analog-to-digital conversion on the plurality of analog signals which creates a corresponding plurality of digital values; and storing representations of the plurality of digital values to a storage medium.
Full resolution color imaging of an object
The invention relates generally to both a method and apparatus for the creation of full resolution color digital images of diagnostic cassettes or objects of interest using a gray-scale digital camera or sensor combined with time sequential illumination using additive primary colors followed by post exposure digital processing. Such procedures and equipment is of significant economic value when employed in situations such as diagnostic clinical analyzers where space is limited and image quality requirements are high.
Image capture apparatus and method for controlling the same
An image capture apparatus capable of performing appropriate exposure control including determination of whether or not to fire an illuminating device for each frame shot during continuous shooting is provided. If shooting for recording was performed without firing the illuminating device during continuous shooting, a photometric value to be used to determine a control value (shooting parameter) used in subsequent shooting for recording is obtained based on image data obtained in the shooting for recording. On the other hand, if shooting for recording was performed while firing the illuminating device, the photometric value to be used to determine the control value to be used in subsequent shooting for recording is obtained based on image data obtained in shooting without firing the illuminating device that was performed after the shooting for recording and before the subsequent shooting for recording.
Apparatus, method, and program for selecting image data using a display
An image recording apparatus includes an image capturing unit configured to capture an image of a subject, a recording unit configured to record one of still image data and video image data captured by the image capturing unit on a storage medium in the form of an image file, a generating unit configured to generate a management file used for managing the image file recorded on the storage medium, and a registering unit configured to register an identifier of the image file recorded on the storage medium in the management file on a capture date basis in the order of capture time.
Image capture device, method for generating image, infrared camera system, and interchangeable lens system
An image capturing device for generating images with precise luminance gradation regardless of variability in output levels between pixels. The image capturing device consists of an image shifting means for moving an image position on a light receiving surface, a differential calculating section for calculating the difference between output levels of the same pixels before and after image position movement, a summed level calculating section for sequentially summing the difference in output level for each pixel in pixel lines arrayed in the direction of movement of the image position to calculate the summed level of each pixel, and an image generating section for generating images based on the summed levels of each pixel.
Applying video stabilization to a multimedia clip
In one embodiment, a method includes determining one or more motions of a camera, where the motions correspond to movements of the camera during recording of a multimedia clip. The method also includes determining one or more amounts of light present during the recording, and from the determined motions and amounts of light, determining a motion-blur metric for the multimedia clip. The method further includes determining whether to apply a video-stabilization routine to the multimedia clip based on the motion-blur metric.
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.
Photographing apparatus, photographing method and medium recording photographing control program
A photographing apparatus includes an image pickup unit that acquires a plurality of picked-up images by picking up images of a subject from mutually different viewpoints, an image comparison section that determines a specific part which is specific in the picked-up images and a part other than the specific part, and an image generating section that generates a special image by performing image processing differently for the specific part and for the part other than the specific part.
Camera tap switch
Various embodiments provide a wearable camera that can be worn by a user. The wearable camera includes an accelerometer that can be used to detect camera motion. Input can be provided to the camera in the form of one or more taps which have an associated motion profile, as sensed by the accelerometer. The tap or taps can be mapped to camera functionality to activate the functionality.
Apparatus for adjusting autofocus using luminance correction and method of controlling the same
An apparatus for adjusting an autofocus and a method of controlling the same are provided. The apparatus includes an imaging device that photographs light from a subject so as to generate an image signal; a contrast calculation unit that calculates a first contrast value of an image from the image signal; a correction unit that corrects a luminance of the image signal if the calculated first contrast value is equal to or less than a reference value; and a focus adjustment unit that adjusts a focus by using a second contrast value that is calculated from the corrected image signal, thereby providing an improved focus adjustment function.
System and method for utilizing enhanced scene detection in a depth estimation procedure
A system for performing an enhanced scene detection procedure including a sensor device for capturing blur images of a photographic target. The blur images each correspond to a scene type that is detected from a first scene type which is typically a pillbox blur scene, and a second scene type which is typically a Gaussian scene type. A scene detector performs an initial scene detection procedure to identify a candidate scene type for the blur images. The scene detector then performs the enhanced scene detection procedure to identify a final scene type for the blur images.
Image pickup apparatus
An image pickup apparatus, including: a filter including transmittance variable element and adjusting amount of incident light from lens; a photoelectric transducer; and guide optical system guiding the incident light from the filter to the photoelectric transducer. The guide optical system includes color separation optical system including, in order from object side, first prism having first dichroic film, second prism having second dichroic film, and third prism, to separate the incident light into red, green, and blue. The first or second dichroic film is blue reflection dichroic film. Rotational position of the transmittance variable element about optical axis is such a position that ratio of transmittance for blue to transmittance for green of marginal ray entering the blue reflection dichroic film at incident angle smaller than principal ray of axial ray to the blue reflection dichroic film is smaller than such ratio of the principal ray of axial ray.
A microphone assembly includes a microphone unit and an attachment unit. The attachment unit includes a camera shoe attachment section to be attached to a camera shoe and a damper housing cylinder fixed to the camera shoe attachment section. A holder is fixed to a lower end of an inner cylinder of a protruding section protruding from the microphone unit. The lower end of the inner cylinder is pivotally supported by a second damper contained in the damper housing cylinder through the holder. The middle portion of the protruding section is supported by a first damper contained in the damper housing cylinder.
Image pickup apparatus having image pickup device
An image pickup apparatus which is capable of fixing an image pickup device compactly and with high strength. A wiring substrate has an image pickup device mounted thereon. A fixing member is fixed on the image pickup device. The fixing member is provided with an abutment surface that comes into abutment with the image pickup device, an opening from which a light-incident surface of the image pickup device is exposed, and a wall portion that faces a side surface of the image pickup device. An adhesive is filled in a space formed between the side surface of the image pickup device and the wall portion.
Diagonal collection of oblique imagery
A vehicle collects oblique imagery along an intercardinal nominal heading using rotated camera-groups with distortion correcting electronic image sensors that align projected pixel columns or rows with a pre-determined direction on the ground, thereby improving collection quality, efficiency, and/or cost. In a first aspect, the camera-groups are rotated diagonal to the nominal heading. In a second aspect, the distortion correcting electronic image sensors align projected pixel columns or rows with a pre-determined direction on the ground. In a third aspect, the distortion correcting electronic image sensors are rotated around the optical axis of the camera. In a fourth aspect, cameras collect images in strips and the strips from different cameras overlap, providing large-baseline, small-time difference stereopsis.
Reconfigurable surveillance apparatus and associated method
An apparatus includes a housing; a plurality of cameras in the housing, each of the cameras being configured to capture image data of a portion of a scene external to the housing; an attitude detector for detecting an orientation of the housing; and a transmitter disposed within the housing, the transmitter being configured to transmit the image data and an orientation signal to a station disposed remotely from the scene. A method of using the apparatus is also provided.
Method for retransmission using checksums for identifying lost data packets
The present invention relates to a method for retransmission of lost data, a receiving device operating according to the invented method and a retransmission server. In the absence of a unique identifier per data packet or data frame, there is obviously a problem to directly identify a specific data packet, data block or data frame in the stream and retransmission can't take place with current technologies. The object of the present invention is to offer a retransmission method and means for making said retransmission of missing data packets possible in the absence of a unique identifier.
System and method for combining a plurality of video streams generated in a videoconference
Disclosed herein is a method and apparatus for videoconferencing that allows video images from two or more cameras at the same site to be displayed as a single panoramic image. Accordingly, a conferencing endpoint having a single monitor can display the panoramic image of the two or more video images from an endpoint having multiple cameras, such as a telepresence endpoint. A sliding display area can be used to define manually a zoomed portion of the panoramic image to be displayed. Alternatively, the zoomed portion may be determined automatically. The zoomed portion may be changed during the course of the conference.
Video and audio tagging for active speaker detection
A videoconferencing system is described that is configured to select an active speaker while avoiding erroneously selecting a microphone or camera that is picking up audio or video from a connected remote signal. A determination is made whether an audio signal is above a threshold level. If so, then a determination is made as to whether a tag is present in that audio signal. If so, that signal is ignored. If not, a camera is directed toward the sound source identified by the audio signal. A determination is made whether a tag is present in the video signal from that camera. If so, the camera is redirected. If not, local tag(s) are inserted into the audio signal and/or the video signal. The tagged signal(s) are transmitted. Thus, system will ignore sound or video that has an embedded tag from another videoconferencing system.
Image processing apparatus, image processing method, and computer-readable storage device
An image processing apparatus includes a contour-candidate-edge detecting unit that detects, as contour candidate edges, edges based on a gradient magnitude of each pixel in a target image; a contour-edge detecting unit that detect contour edges by performing thresholding on gradient magnitudes of the contour candidate edges; an interpolation-line generating unit that generates interpolation lines for connecting end points of respective end-point pairs based on gradients of pixel values between the end points while each of the end point pairs is made up of an end point of an identical contour edge as a connection base and an end point of a different contour edge as a connection destination; and a contour-edge interpolating unit that selects one of the interpolation lines based on the gradients of pixel values on the interpolation lines and interpolates a contour edge between the end points with the selected interpolation line.
Telepresence systems and methods therefore
A telepresence system enhances the perception of presence of a remote person involved in a video conference. The system preferably has a two-way mirror, which is between the observer and the display device, positioned at an angle to reflect a backdrop surface. The backdrop surface may or may not appear superimposed in a position behind the image of a person from the remote location. The system preferably minimizes image distortion via an optical path for the camera line of sight that is substantially longer than the physical distance between the user and the camera. The system may be asymmetrical, in that one camera is on axis with the user's line of sight while the other camera is off axis with the user's line of sight.
Apparatus and method for distributing audio and video content using existing network wiring
An apparatus, system and method are described which allows multimedia signals received from one or more content providers (e.g., cable television providers, Internet content providers, . . . etc) to be received, processed and retransmitted by an originating node to one or more receiving nodes over a local cable network (e.g., the coaxial cable network within a user's home). One impediment to communication between nodes within the local cable network is the fact that most cable splitters are designed to attenuate signals between the split legs of the splitter. Accordingly, in one embodiment of the invention, a reflector device coupled upstream of the root splitter in a local cable network (or in place of the root splitter) is configured to reflect signals transmitted from the originating node back up into the network to the receiving nodes. Signal attenuation is minimized because the signals propagate from the splitter inputs to the splitter legs (rather than between the splitter legs).
Book readout system and book readout method
A book readout system and method for reading out information described in a book at a high speed, while the book, in a bound form, is flipped through. A page state measuring unit (2) measures a page state of a book being flipped through. A book image acquisition unit (1) comprises a plurality of first cameras (11) which respectively acquire book images with respect to a page of the book, from mutually different directions, for a plurality of number of times. A data processing unit (3) corrects the book image acquired by the book image acquisition unit (1) using the information of the page state of the book measured by the page state measuring unit (2).
Data processing apparatus, controlling method and data processing system for providing service to terminal device
A data processing apparatus connected to a terminal device and providing a service in response to a request from the terminal device, includes a processable condition storing unit that stores one or more services providable by the data processing apparatus and a position of a terminal device to which provision of the service is permitted in correspondence with each of the services; a receiving unit that receives a service request of requesting provision of a service and positional information of the terminal device sent from the terminal device; and a control unit that controls the data processing apparatus to provide the service requested by the service request when the position indicated by the positional information received by the receiving unit is included in the position that is in correspondence with the service requested by the service request received by the receiving unit in the processable condition storing unit.
Flexible shading member for performing shading correction and movable relative to first and second image reading sections
A shading device includes: a shading member to pass a conveying path for conveying a recoding medium to plural image reading sections and reach the plural image reading sections; and a moving member to move the shading member between the plural image reading sections and a retracted position on the outside of the conveying path.
Image reading apparatus
An image reading apparatus includes a housing, a first guide, a second guide, a first conveyor, and a reader. The first guide provides a first path between a first opening and a second opening. The second guide provides a second path between a third opening and a junction where the first path intersects the second path. The first conveyor includes first and second drive rollers, first and second driven rollers, first and second springs. The first drive roller is disposed inside a path, which includes at least the second path, between the third opening and the second opening, while the second drive roller is disposed outside the path. The first spring biases the first driven roller toward the first drive roller with a first biasing force (F1). The second spring biases the second driven roller toward the second drive roller with a second biasing force (F2), where F2>F1.
Image forming apparatus
An image forming apparatus includes: document reading device; document holder; and first locking device. Document reading device is provided so as to be openable and closable relative to apparatus body. Document holder is provided so as to be openable and closable relative to document reading device. First locking device locks document holder so as to prevent document holder from performing opening operation in the case of the document reading device performing opening operation. Document reading device includes an opening. First locking device includes: locking member, first hook member, and lid member. Locking member is inserted into the opening in a state where document holder is closed relative to document reading device. First hook member is engaged with locking member inserted in the opening, below document placing surface. Lid member is movable between closing position at which the opening is closed, and opening position at which the opening is opened.
Computer-readable storage medium storing instructions for information processing device, information processing device, and method for controlling information processing device capable of setting devices to execute various types of processing
An information processing device may be configured to send print information to a printing device connected with a network. The information processing device may store identifying information for identifying the printing device. The information processing device may execute a print preview display processing of displaying a print preview image showing a print preview using the print information. The information processing device may send the print information to the printing device according to a user input. The information processing device may execute first connection confirmation processing of confirming that connection confirmation information has been received. The connection confirmation processing may be performed according to a first condition for starting the print preview display processing being satisfied. The information processing device may display a reception confirmation image in a case that it is confirmed that the connection confirmation information has been received.
Device for providing notifications while mated with a carrying case
A device for providing notifications while mated with a carrying case is provided. The device comprises: an indicator; a first detector configured to detect when the device is mated with a carrying case, the carrying case having an open configuration and a closed configuration, wherein the indicator is hidden in the closed configuration and at least partially exposed in the open configuration; a second detector configured to detect when the carrying case is in the open configuration; and, a processor configured to place the indicator in a given notification mode when the first detector detects that the device is mated with the carrying case and the second detector detects that the carrying case is in the open configuration.
Systems and methods for portable audio synthesis
A method for remixing a music piece includes providing a music composition graphical user interface on a portable communications device. The music composition graphical user interface displays a plurality of actionable menu items. A first collection of actionable menu items is provided to the graphical user interface from an internal source. A music remixing algorithm incorporates music rules and can remix the music piece in a manner where only one musical component is remixed at a given time. A music remix database is accessible via the graphical user interface. A plurality of music remix data is organized based in part on a music style parameter. A second collection of actionable menu items is provided from the music remix database to the graphical user interface via a communications network. The first and second collection of actionable menu items displayed in a seamless manner.
Space and time based device customization
Customizing a device based on space and time (e.g., a geographic position of the device at a particular time) is disclosed. In one aspect, geographic position data of a device is obtained. Temporal data that is related to the geographic position data is obtained. An operational mode is selected based on the geographic position data and the temporal data for activation on the device. In some implementations, the operational mode identifies a communication medium.
Method and system for providing context based multimedia intercom services
An approach is provided for performing context based multi-modal intercom sessions. A control signal to invoke an intercom service between two or more communication devices is received. Context information associated with one or more of the communication devices is determined. An intercom mode communication session among the communication devices is established. The context information is used to customize the intercom service for one or more of the communication devices.
Interruptible, contextually linked messaging system with audible contribution indicators
Systems and methods for providing a method of recording, delivering, reviewing and responding to messages such that the context of responses to the messages are recorded in the form of a message index to enable linking of messages and responses in a meaningful fashion for review by a user. The flow of conversation on a topic initiated in an original message is preserved in one or more conversation threads. Also incorporated is a method to indicate the party (user or entity) responsible for posting a response in the form of a brief audible icon overlaid on the original message and heard upon review, the icon also to be used to indicate affiliation with third parties at the option of the user or as a means to subsidize the cost of providing the messaging service.
Display representation of two different signal quality values within a single signal quality indicator
A device and method for displaying a signal quality indicator representation on a mobile device is disclosed. Signal quality values for two different wireless networks is determined. The signal quality indicator is displayed in a banner area on a display of the mobile device providing a graphic representation displaying both of the signal quality values. One of the signal quality values is associated with a first color and the other value is associated with a second color. Where portions of the first signal quality values overlap, a combined representation associated with a third color is displayed. The signal quality indicator is at least one bar of a plurality of graduated bars.
Systems and methods for processing and routing communications
Systems and methods to process communications received from a user are described herein. In one example, the system may include a communications handling module that receives communications from users and a routing decision engine that selects an agent to process the communication. In another example, the method may include, receiving a communication from a user, parsing their need from the communication, and processing the communication using the need and other needs. In a further example, the method may include anticipating a service or product that may be of interest to the user and servicing that during a single interaction with an agent, where the interaction was initiated by the user for another need.
Sending callback text messages from a contact center
Various embodiments of the invention provide a callback text message to a party who has placed an inbound call received by a contact center. Specifically, the inbound call is received by the contact center and placed into a queue to wait for an available agent. At this point, a condition is detected such as the call remaining in the queue for at least a minimum amount of time, the call expected to remain in the queue for at least a minimum amount of time, and/or the call becoming disconnected with the contact center. Accordingly, one or more parameters associated with inbound calls received by the contact center are monitored in particular embodiments and after the condition is detected and upon the one or more parameters reaching threshold values, a text message is sent to the party recommending to the party to place a subsequent inbound call to the contact center.
System and method of providing generated speech via a network
A system and method of operating an automatic speech recognition application over an Internet Protocol network is disclosed. The ASR application communicates over a packet network such as an Internet Protocol network or a wireless network. A grammar for recognizing received speech from a user over the IP network is selected from a plurality of grammars according to a user-selected application. A server receives information representing speech over the IP network, performs speech recognition using the selected grammar, and returns information based upon the recognized speech. Sub-grammars may be included within the grammar to recognize speech from sub-portions of a dialog with the user.
System, method and architecture for control and multi-modal synchronization of speech browsers
Clients connecting to a VoiceXML browser obtain a control channel. Using this channel, clients may initialize a new VoiceXML session or attach to an existing VoiceXML session. The client after obtaining a session may perform a range of actions including controlling and monitoring actions.
Electronic communication devices with integrated microphones
Modern electronic devices are becoming smaller while the need to critically locate acoustic sensors or transducers, e.g., microphones, is increasing in order to provide improved intelligibility in adverse environments. The acoustic transducers can be used in arrays with their outputs processed in beam forming and noise cancellation algorithms. The use and creation of features on the surface of a small package to deal with the problem of achieving high performance solutions in a limited space are disclosed herein. For example, embodiments of electronic communication devices (10) include acoustic transducers (26) integrated with other features such as a volume control (34, 50), an antenna (87, 260, 280), an adapter (300) which can be coupled to an input/output jack (90) and an accessory connector, or a projection (98).
Method and system to shield mobile phones and devices to minimize radiation exposure
A method and system for protecting a user from exposure from radio waves emitted from a wireless transmitter include at least a layer of dielectric material to operate on the radio wave through reflection, refraction, diffraction, absorption, polarization and/or scattering of the wave. The characteristics and arrangement of multiple layers of shielding on portions of or all of a face plate may significantly reduce exposure to electromagnetic waves and the deleterious effects associated with over exposure. The shielding can be applied subsequent to manufacture, during manufacture or incorporated into structures which may form the transmitting device.
Method for optimizing the routing of communications between a plurality of telephony domains, corresponding signal, device and computer program
A method and apparatus are provided for optimizing routing of communications between a plurality of telephony domains. The method includes: detecting a congestion or congestion-risk phenomenon in a first telephony domain; and a phase for transmitting, in a signalling message, at least one information concerning the congestion or congestion-risk phenomenon, or congestion information, to at least a second telephony domain.
Concealment of errors in HTTP adaptive video sets
A system includes a stream controller. The stream controller may be configured to generate a plurality of output streams in response to the plurality of input streams. The stream controller may be further configured to (i) determine when one of the plurality of input streams becomes invalid, (ii) switch generation of an output stream associated with the invalid input stream from the invalid input stream to a valid one of the plurality of input streams, and (iii) when the invalid input stream becomes valid again, switch the generation of the output stream back to the now valid input stream.
Live concert/event video system and method
One aspect of the invention is a method of providing video to attendees of a live concert. Video of different views of the live concert is captured. A plurality of video streams are provided to attendees of the live concert while the live concert is occurring. The plurality of digital video streams enable an attendee of the live concert to select which of the plurality of digital video streams to view using a portable digital device associated with that attendee such that the attendee may choose from among the different views of the live concert.
System and method for sharing data in a group of mobile devices
A method and system are provided for sharing data amongst a group of a plurality of mobile devices without requiring a database or server to centrally store the shared data. The shared data is instead stored by each group member individually while controlling the manner in which the shared data is updated. To manage such updates, the shared data is atomized such that individual databases in the shared data are separated or otherwise delineated into one or more records, each record having associated therewith, a value. To maintain a common copy of the shared data at each device, any update is sent to all group members using an intermediate message exchange service that is capable of transmitting a sent message to more than one recipient if necessary. In this way, the updates are multicast to the group. To manage the content of the shared data, each update comprises one or more changes to a current copy of a corresponding record.
Communication device, method for controlling the communication device, and communication system
A communication device includes a flow identification unit specifying a user corresponding to received data, a bandwidth control unit controlling transmission of the received data so as not to exceed a bandwidth corresponding to the selected communication path in two bandwidths allocated to the specified user, and a label addition unit adding the label value corresponding to the selected communication path to the data received from the bandwidth control unit and transmitting the data. The label addition unit executes, upon detecting a trigger for a change in the selection of the communication path, changing the selection of the label value and transmitting a feedback signal for giving notice of the change in the selection of the communication path to the bandwidth control unit in a given order. The bandwidth control unit executes a process of changing the setup of the bandwidth on the basis of the received feedback signal.
Method for assigning network addresses for fans
A method of assigning network addresses for ventilators (3, 4, 5) in a network. Each ventilator (3, 4, 5) has a unique serial number in a serial number memory (8) and a network address in an adjustable network address memory (9). A control unit (1) automatically assigns network addresses to a plurality of ventilators (3, 4, 5). To begin with, all ventilators are assigned an identical start-address as network address, and serial number queries with a serial number mask are sent to the start-address. The serial number mask is comprised of definite and indefinite positions, and the ventilators (3, 4, 5) respond to the serial number mask subject to their serial number. The control unit (1) assigns unique network addresses to the ventilators (3, 4, 5) independently of the responses and/or modifies the serial number mask for further serial number queries.
Managing multiple IP address management systems
Managing multiple IP address management systems is provided. In some embodiments, managing multiple IP address management systems includes providing an IP address management (IPAM) manager system for receiving a configuration command to manage a first IP address management system; receiving a configuration command to manage a second IP address management system; receiving a join request from the first IP address management system; and receiving a join request from the second IP address management system, in which the IP address management manager system is in communication with the first IP address management system and the second IP address management system for managing each of the first IP address management system and the second IP address management system.
Method and apparatus to perform multiple packet payloads analysis
A method and apparatus for identifying data patterns of a file are described herein. In one embodiment, an exemplary process includes, but is not limited to, receiving a data packet of a data stream containing a file segment of a file originated from an external host and destined to a protected host of a local area network (LAN), the file being transmitted via multiple file segments contained in multiple data packets of the data stream, and performing a data pattern analysis on the received data packet to determine whether the received data packet contains a predetermined data pattern, without waiting for a remainder of the data stream to arrive. Other methods and apparatuses are also described.
Method, system and article of manufacture for providing connections and connection aliases descriptors by services and libraries archives
A method, system and machine accessible medium for establishing connectivity to a remote computer system by using connectivity objects descriptors provided with services and libraries SDAs. A service or in a library SDA provides a description of how to establish a connectivity object for accessing a remote system. When the SDAs are deployed on an application server, all packed descriptions are stored in a repository. The connectivity is established at server startup in accordance with the descriptions and is accessible for all applications, services and libraries while the server is running.
Methods and systems for authenticating electronic messages using client-generated encryption keys
Systems and methods for authenticating electronic messages using client-generated encryption keys provide for a sender transmitting an original message to a recipient device that includes a digital signature of the original message content and the key used to generate the digital signature. The sender may store an association between the digital signature, the key, and the recipient's address. The recipient may verify the integrity of the original message using the received digital signature and may further verify the authenticity of the message by transmitting a confirmation request message back to the sender that includes the original digital signature and a second digital signature of the confirmation request message using the received key. The sender may either confirm or deny that it sent the original message by determining whether a record exists that associates the digital signature and the key received from the recipient as well as the recipient's address.
Determining server write activity levels to use to adjust write cache size
Provided are a computer program product, system, and method for determining server write activity levels to use to adjust write cache size. Information on server write activity to the cache is gathered. The gathered information on write activity is processed to determine a server write activity level comprising one of multiple write activity levels indicating a level of write activity. The determined server write activity level is transmitted to a storage server having a write cache, wherein the storage server uses the determined server write activity level to determine whether to adjust a size of the storage server write cache.
Method, system and network nodes for performing a SIP transaction in a session initiation protocol based communications network
Method, system and network nodes for performing a SIP transaction, such as a SIP Invite transaction, in a Session Initiation Protocol based communications network from a first node to a third node via a second node. The second node acts as a proxy that receives a SIP message from the first node and, instead of forwarding the message to the third node, transmits a pivot request to the first node requesting the first node to forward the message directly to the third node. The first node forwards the message directly to the third node, and during the remainder of the SIP transaction further SIP messages are exchanged between the first and third node directly.
Method and apparatus for automated network connectivity for managed application components within a cloud
Various exemplary embodiments relate to a method performed by an application manager for automatically establishing a network connection between components of an application within a distributed cloud, the method including: establishing application components in the distributed cloud; selecting a first application component; identifying network characteristics from the network policy file associated with the first application component; determining a network connection between the first application component and a second application component according to the network characteristics associated with the first application component; associating the network connection with the first application component; and establishing the network connection between the first and second application components.
Browser-based provisioning of quality metadata
Various features are disclosed for generating and presenting users with resource metadata regarding the usefulness or predicted usefulness of particular pages, sites, and/or other network resources. The metadata may be based partly or wholly on the monitored browsing behaviors of many users, including behaviors reflective of whether particular resources were useful to the users. The metadata may, in some cases, be personalized for particular users based, for example, on their browsing environments or contexts. For example, the metadata presented to a smartphone user regarding a particular link may reflect a determination of whether the target resource is well suited for display on smartphones generally or on the user's particular model of smartphone.
Identifying application reputation based on resource accesses
Malware detection is often based on monitoring a local application binary and/or process, such as detecting patterns of malicious code, unusual local resource utilization, or suspicious application behavior. However, the volume of available software, variety of malware, and sophistication of evasion techniques may reduce the effectiveness of detection based on monitoring local resources. Presented herein are techniques for identifying malware based on the reputations of remote resources (e.g., web content, files, databases, IP addresses, services, and users) accessed by an application. Remote resource accesses may be reported to a reputation service, which may identify reputations of remote resources, and application reputations of applications that utilize such remote resources. These application reputations may be used to adjust the application policies of the applications executed by devices and servers. These techniques thereby achieve rapid detection and mitigation of newly identified malware through application telemetry in a predominantly automated manner.
Remote authorization of access to account data
An authentication request from a first client device may be received. The authentication request may identify an account. A second client device associated with the account may be determined. An authentication query may be transmitted to the second client device. An authentication response may be received from the second client device. The authentication response may authorize the first client device to access data associated with the account. At least some of the data associated with the account may be transmitted to the first client device.
Validating a certificate chain in a dispersed storage network
A method begins by a processing module receiving a certificate chain and determining whether at least one of one or more signed certificates of the chain has a valid signature. When the at least one of the one or more signed certificates has a valid signature, the method continues with the processing module identifying one or more certificate authorities (CA) to produce identified CAs, accessing registry information that includes one or more realm identifiers (IDs) and a plurality of trusted CA IDs, determining whether one or more of the identified CAs is a trusted CA, and when the one or more of the identified CAs is a trusted CA, indicating that the certificate chain is valid, identifying a realm ID based on a trusted CA ID, and generating certificate chain validation information to include the realm ID, trusted CAs, and the indication of the validity of the certificate chain.
Single sign on (SSO) authorization and authentication for mobile communication devices
Single sign on (SSO) functionality is provided across native and hybrid applications executing on a mobile communication device, such that both native and hybrid applications can access authenticated services offered through respective application servers without repeatedly providing authentication credentials. In operation, the mobile device obtains an SSO token from an SSO server providing the SSO functionality, and native applications executing on the mobile device retrieve the SSO token from memory for use in accessing authenticated services. In the case of hybrid applications, an alias is assigned to the mobile device in response to receiving a page request received from the hybrid application. The alias is associated with SSO token of the mobile device in the SSO server, and is used to provide the SSO token directly to the hybrid application from the SSO server such that the hybrid application can use the SSO token for authentication.
Toggle between accounts
Techniques are described for enabling administrators of teams that use a particular service to specify which sign-on options, of multiple possible sign-on options, are assigned to the members of the teams to which the administrators belong. For example, an administrator may assign a first sign-on option, which only allows users to use native authentication, to one set of members of the team. At the same time, the administrator may assign a second sign-on option, which only allows users to use third-party single-sign-on authentication, to another set of members of the same team.
Authenticating linked accounts
Embodiments of authenticating linked accounts are presented herein. In an implementation, an authentication service provides functionality to form links between a plurality of user accounts. A client may then authenticate by providing credentials for one account in a group of linked accounts, and is permitted access to each account in the group of linked accounts based upon the linking. Thus, a single sign-in of a client to one account may permit the client to obtain services for service providers corresponding to multiple linked accounts, without an individual sign-in to each account.
Systems and methods of integrating openID with a telecommunications network
A solution is described which allows mobile devices to specify that certain sites are allowed to be logged into based on the device credentials alone. The solution integrates OpenID with a telecommunications network in order to verify the user's identity. This verification is based on the trust that the telecom carrier has to identify the subscriber at the GGSN. The solution splits the OpenID Provider (OP) into two systems—an internal OP and an external OP. The external OP can reside in the public network and can allow the user to authenticate with a password. The internal OP resides in the private network of the carrier and is directly connected to the GGSN such that it is only reachable from the GGSN.
Adapter device for coupling an industrial field instrument to an industrial wireless network and related system and method
A method includes coupling an adapter device to a field instrument in an industrial control system to provide a wireless communication capability to the field instrument. The method also includes converting, by the adapter device, information from a first protocol native to the field instrument into a second protocol native to a wireless network. The method further includes transmitting the information to at least one other device over the wireless network.
Method and node for distributing electronic content in a content distribution network
The present invention relates to a method and node for efficiently distributing electronic content in a content distribution network (CDN) comprising a plurality of cache nodes.Embodiments of the present invention include a virtual node logically representing a set of cache nodes. The set of cache nodes is in turn defined based on an internal communication cost between the cache nodes. In each of the cache nodes represented by the virtual node statistics regarding content requests is collected, and based on this statistics it is determined whether specific content is to be cached in the virtual node or not. If it is determined to cache specific content in the virtual node, the specific content may be caused to be cached in one or more of the cache nodes represented by the virtual node.
Internet based security information interaction apparatus and method
The present invention discloses a device and method for security information interaction. The device for security information interaction includes: an interface circuit, configured to connect the device for security information interaction to an internet terminal; an information input unit, configured to allow user to input security information; a secure encryption/decryption unit, configured to store and process the security information; an information reader, configured to read information data from an external information carrier; wherein the secure encryption/decryption unit processes the security information in connection with the information data, and complete a business function on the secure channel through the interaction with the security information processing server. The device and method for security information interaction disclosed in the present invention improves the flexibility and efficiency of the information processing system, enhances the security of the information processing system, and extending new applications of an external information carrier in an open network environment.
Dynamic user identification and policy enforcement in cloud-based secure web gateways
A cloud-based secure Web gateway, a cloud-based secure Web method, and a network deliver a secure Web gateway (SWG) as a cloud-based service to organizations and provide dynamic user identification and policy enforcement therein. As a cloud-based service, the SWG systems and methods provide scalability and capability of accommodating multiple organizations therein with proper isolation therebetween. There are two basic requirements for the cloud-based SWG: (i) Having some means of forwarding traffic from the organization or its users to the SWG nodes, and (ii) Being able to authenticate the organization and users for policy enforcement and access logging. The SWG systems and methods dynamically associate traffic to users regardless of the source (device, location, encryption, application type, etc.), and once traffic is tagged to a user/organization, various polices can be enforced and audit logs of user access can be maintained.
Dynamic application programming interface
Systems, methods, and machine-readable media are described for retrieving data associated with files using input data files. Embodiments include generating input data files, which can be transformed to create data objects from input data of the input data files. The input data and the corresponding data objects can include information regarding files, such as the universal resource indicator (URI) of a file. The data objects can then be stored.
Rendering web content using pre-caching
A first resource is provided on a user device, the first resource including a plurality of links to other resources. At least one, but not all of the plurality of links are selected for pre-caching, and at least a portion of a second resource located by the first link is automatically cached. At least the portion of the second resource is provided in response to a designated triggering event.
Facilitating the sending of mail from a restricted communications network
The sending of mail from a restricted communications network is facilitated. A communications unit external to the restricted communications network periodically pulls the mail from the restricted communications network and forwards the mail to a receiver. The receiver may be the intended recipient of the mail or an intermediary used to further send the mail to the intended recipient.
Remote communication method
A remote communication method is provided. A service end generates a communication message. The service end attaches a first data to the communication message. The first data denotes a content of a first message which comprises a parameter. The service end attaches a second data to the communication message. The second data denotes a content of a second message which is used for substituting the parameter of the content of the first message and for restoring a content of an original message. The service end transmits the communication message containing the first data and the second data to the user end.
Method, device and system for voice communication
A method is performed at a computer server for enabling voice communication between two terminals through IM service. Upon receiving a message from a remote computer, the message including an IM identifier of a callee terminal user and a mobile device identifier of the terminal, the computer system updates an entry for the callee terminal user in a database. Upon receiving a request from a caller terminal user at a caller terminal to start voice communication with the callee terminal user, the computer server identifies the entry that includes the IM identifier of the callee terminal user and sends a voice communication request to a service control point (SCP) in a switched telephone network. The SCP then returns an IP address and a port number of the callee terminal and launches a call request against the callee terminal. The computer server establishes a voice communication channel between the two terminals.
Method for supervising a chat connection
A method for supervising a chat connection between at least two terminals is provided. The method includes verification of first conditions, including a camera at each terminal is operated, video streams of each camera are live streams, and/or each video stream contains images of a live person. The connection is allowed if all of the first conditions are met and if one second condition is met. A second condition can include one first subset of the persons is identified as belonging to one defined restricted group and an identity of a second subset of the persons is determined at least on the basis of facial and/or body features and the identified second person is classified as an allowed exception. The method also includes a pre-defined reaction if any of the first conditions and/or all of the second conditions are not met.
Enforced unitasking in multitasking systems
A computer system includes one or more devices that are capable of multitasking (performing at least two tasks in parallel or substantially in parallel). In response to detecting that one of the devices is performing a first one of the tasks, the system prevents the devices from performing at least one of the tasks other than the first task (such as all of the tasks other than the first task). In response to detecting that one of the devices is performing a second one of the tasks, the system prevents the devices from performing at least one of the tasks other than the second task (such as all of the tasks other than the first task).
Low latency networking device using header prediction
A network device receives a packet that includes a plurality of header fields. The packet is parsed to sequentially obtain the plurality of header fields. One or more header fields not yet available at the network device are predicted based on one or more header fields that are available at the network device. A network processing decision is generated for the packet based on the predicted one or more header fields and the one or more header fields that are available at the network device.
Addressable node unit and method for addressing
An addressable node unit includes connections for at least two lines via which the node unit can be addressed. The connections are connected to a circuit which evaluates an addressing signal. The node unit includes at least one power source which is supplyable with power via at least one of the lines. A switch is provided in the path between the evaluating circuit and the corresponding line connection, the switch being opened after an addressing process so that the power supply of the evaluating circuit is ensured by the at least one power source after the addressing.
Managing application execution and data access on a device
Some aspects of what is described here relate to managing application execution and data access on a mobile device. A request to access data is received from an application associated with a first perimeter on a device. The data is associated with a second, different perimeter on the device and has a data type. It is determined, based on the data type, that a management policy associated with the first perimeter permits the application to access the data independent of a second, different management policy assigned to the second perimeter. Based on the determining, the application is provided access to the data.
Application non disruptive task migration in a network edge switch
An apparatus and a method are described for zero packet loss task migration in an network switch in a computer network. The invention relates to active or programmable networks, i.e. networks based on packet switching algorithms and switch configurations which are subject to change. A well-defined protocol enables an intelligent switch to migrate tasks from one forwarding engine to another without any packet loss. This enables the algorithms and configurations of the switch to be updated or modified arbitrarily.
Method and apparatus for controlling load shedding in data stream management system
Provided are a method and apparatus for controlling load shedding for excluding data streams input into a data stream management system (DSMS). A method of selecting data not to be in the data process may be determined. A load shedding factor may also be determined. Data streams of the data process may be processed by applying the method of selecting the data according to the load shedding factor.
Priority data transmission using Fibre Channel over Ethernet
An apparatus, system, and method are disclosed for handling data being communicated over lossless Ethernet that is sensitive to delays. Fiber Channel over Ethernet (FCoE) is one example of an environment where data may be subject to unacceptable delays. The method involves designating certain data as low latency data that is sensitive to delays in transmission. The low latency data is then transmitted in such a manner that the receiving devices are aware that they are receiving low latency data. If a delay in the transmission of low latency is detected, commands are issued that pause or slow standard data in order to free up bandwidth for the low latency data. The commands may be, for example, backward congestion notifications and priority flow control. Low latency data is exempted from backward congestion notifications and priority flow control. Priority 7 priority group 15 may be reserved exclusively for low latency data.
Network device and method of routing traffic
A method for routing switch is disclosed. The method comprises: when a network device forwards traffic through N equal-cost multi-path (ECMP) routes to a destination, if M of these routes are inactive, then for each inactive route, determining an alternative route for replacing the inactive route from N-M active routes, and modifying the inactive route to the alternative route so as to switch the traffic of the inactive route onto the alternative route, wherein N and M are positive integer numbers, with N being greater than or equal to 2 and M being greater than or equal to 1 and smaller than N.
Lightweight packet-drop detection for ad hoc networks
In packet-drop attacks in ad hoc networks, a malicious network node chooses to selectively drop packets that are supposed to be forwarded, which results in adverse impact on application good-put and network stability. A method and system for detection of packet-drop attacks in ad hoc networks requires network nodes to report statistics on IP flow packets originated, received, or forwarded to neighbors. These statistics are analyzed and correlated to determine nodes suspected of dropping packets.
Congestion-based notification during fast reroute operations in stateful path computation element environments
In one embodiment, once activation of use of a backup tunnel is detected for a primary tunnel, then a level of congestion of the path of the backup tunnel may be determined. In response to the level being greater than a threshold, a head-end node of the primary tunnel is triggered to reroute the primary tunnel (e.g., requesting to a path computation element). Conversely, in response to the level not being greater than the threshold, the backup tunnel is allowed to remain activated.
Network interface and method of aggregating processor circuits
A system having a first and second interfaces is described. At least one of the first and second interfaces has a cell engine, a first processor circuit, a second processor circuit, and a first and second transponder. The first processor circuit is coupled with the first transponder and the cell engine so as to transmit a header cell to the cell engine. The second processor circuit is coupled with the second transponder and the cell engine so as to transmit a body cell to the cell engine. The system may aggregate the processing capacity of several processor circuits to form larger capacity logical interfaces. Packets may be fragmented into a header cell including the packet header and body cells including the packet payload and then transmit and reassemble the packet. The header cells may be fully handled by the processor circuit, while body cells may be passed on without processing.
Performance optimized and configurable state based heuristic for the classification of real-time transport protocol traffic
A probe receives a first packet over a network on a port. A sequence number and synchronization source identifier (SSRC) associated with the first packet are identified. The probe receives a subsequent packet and a sequence number and SSRC associated with the subsequent packet are determined. The probe determines whether the SSRC associated with first packet and the SSRC associated with the subsequent packet match. Additionally, the probe determines whether the sequence number associated with the subsequent packet is within an acceptable range of values related to the sequence number associated with the first packet. Additionally, the probe calculates the time interval between reception of the packets. The probe classifies traffic on the port as RTP or non-RTP traffic based on analysis of the SSRCs, sequence numbers and time intervals.
Determining connectivity in a failed network
The disclosed technology, in one embodiment, involves a method that improves the execution speed of graph algorithms that are commonly used by network service providers for network analysis and/or design. The disclosed technology can be used to provide significant efficiency improvements when applied to networks that are separated into several isolated fragments (“fragmented networks”) due to severe damage that may be caused by either natural disaster (such as hurricanes or earthquakes), or planned adversary attacks. In one embodiment of the disclosed technology, a graph algorithm, that is used to determine a characteristic of the network, is not applied directly to the whole network/graph. Instead, the graph algorithm is applied to isolated network/graph fragments that are identified, for example, by using a fragment discovery algorithm. The graph algorithm is then applied to one or more relevant fragments. The results may be combined to obtain a network wide result.
Methods and apparatuses for identifying and alleviating internal bottlenecks prior to processing packets in internal feature modules
Methods and apparatuses for identifying and alleviating bottlenecks prior to processing packets in internal feature modules are described. First, a method is provided for aggregating the service policies of various physical interfaces, and using results of the aggregation to determine whether a packet processing engine is capable of satisfying the aggregated service policy information. Second, a method and apparatus for applying the aggregated service policy prior to processing in an internal feature module, such as a crypto-engine. Packets on routers/switches are expected to be subjected to certain policies to address resource contention or streamlining/prioritization on outbound interfaces. Internal bottlenecks that a user can neither see nor control may cause packet transmission guarantees to be violated. Encryption is an example of an internal service that adds overhead thereby creating an internal bottleneck. Such internal bottlenecks are cured through intelligent means of pre-processing and pre-application of certain policy rules.
Measuring upstream modulation error ratio
Methods, systems, and computer readable media can be operable to calculate modulation error ratio using feedback from error correction processing. An error correction value obtained through an error correction process can be added to a measured slicer error in order to calculate a modulation error ratio. An error correction value associated with a correctable error can be based upon the difference between a received symbol and a correct symbol. An error correction value associated with an uncorrectable error can be based upon a measured slicer error and the distance between constellation symbols in a constellation diagram.
Communication configuration and method for debugging, respectively for programming one or more participants of the communication configuration
A communication system configuration has an annular design and includes multiple participants which are serially interconnected, one participant being configured as a master and the remaining participants being configured as slaves. The master is configured for transmitting a data packet to one or a plurality of slaves, and each slave has a shift register. The communication system includes a participant which has an external interface and is adapted for receiving data via the external interface from outside of the communication system to implement a debugging or a programming of one or a plurality of participants of the communication system or for transmitting data to outside of the communication system.
Ensure upstream channel quality measurement stability in an upstream channel bonding system using T4 timeout multiplier
A method and computing device for maintaining the stability of the upstream channel quality measurements in an upstream channel bonded system. The method configures a cable modem, that communicates using bonded channels, to periodically exchange ranging messages on the bonded channels, where a bonded channel ranging interval determines a period for the exchange. The method also monitors a signal quality metric for a monitored channel of the bonded channels by periodically retrieving a quality measurement for the monitored channel, a period between each retrieval determined by a channel quality monitoring interval. The method sends an invite ranging message to the cable modem before retrieval of the quality measurement for the monitored channel, and retrieves the quality measurement for the monitored channel. The method bases the signal quality metric for the monitored channel on the quality measurement.
Managing a flow table
A device may include a flow table to store, in flow table records, statistics associated with a number of data flows, and a flow type table to store, in flow type table records, information that indicates whether to store statistics in the flow table for each of a number of types of data flows, information that indicates a manner for sampling data units associated with the data flows, and/or information that indicates when to delete flow table records from the flow table.
OFDM reception device, OFDM reception circuit, OFDM reception method, and OFDM reception program
An OFDM reception device including: a first orthogonal transformation unit that orthogonally transforms a signal for a useful symbol duration included in an OFDM signal and outputs a resulting orthogonally transformed signal; a second orthogonal transformation unit that orthogonally transforms a signal for a guard interval duration included in the OFDM signal and outputs a resulting orthogonally transformed signal; a detection unit that detects a wide band carrier frequency error amount according to the signal output from the first orthogonal transformation unit and the signal output from the second orthogonal transformation unit; and a correction unit that corrects a wide band carrier frequency shift of the OFDM symbol according to the wide band carrier frequency error amount detected by the detection unit.
Interference identification for orthogonal frequency division multiplexing (OFDM) based systems
Disclosed are various embodiments that are directed towards distinguishing between various types of interference in an orthogonal frequency division multiplexing (OFDM) wireless communication system. According to some embodiments, the system receives a set of symbols encoded in a predetermined subcarrier activation pattern according to an OFDM protocol. The system may determine a plurality of time averaged interference values, each time averaged interference value corresponding to a respective subcarrier index expressed in the set of symbols. Then, the system may separate frequency-based interference from time-based interference according to the plurality of time averaged interference values.
Information processing apparatus, computer-readable recording medium, and control method
An abnormality detection unit provided in at least one node among a plurality of nodes included in an information processing apparatus detects abnormality in a data transmission path of data transmission using a shared memory area sharable in a single node and other node, which is included in the storage unit provided in the single node or other nodes. An error information generation unit provided in the single node generates error information, based on the abnormality detected by the abnormality detection unit, and generates an interrupt with respect to a processor within a self node. The processor provided in the single node performs recovery processing, based on the error information according to the interrupt.
Multiplexer for multi-tenant architectures
A tenant multiplexer in an administrative tenant of a multi-tenant software architecture can call an administrative agent in the administrative tenant and receive, from the administrative agent, an action framework and a trusted connection protocol for accessing each of the plurality of client tenants. The trusted connection protocol can establish, without tenant-specific authentication information, a trusted system connection to an update agent in each of the plurality of client tenants. An action framework can be simultaneously implemented using the update agent of each of at least a subset of the plurality of client tenants under control of the multiplexer via the trusted system connection to begin execution of the software process for the at least the subset of client tenants.
Method and device for channel estimation, and corresponding computer program product
An embodiment of the time-variant channel estimation in an OFDM transmission system envisages the operations of: a) determining the received signal vector Yj,k for one or more of R receiving antennas, j=1, . . . , R, and at the current time instant k together with the frequency-domain channel-estimate vector Ĥj,k−1 at a preceding time instant k−1 and for each antenna j of one or more of R receiving antennas; b) producing a first estimate Âk of the transmitted digital symbols at the current time instant k on the basis of the aforesaid frequency-domain channel-estimate vectors Ĥj,k−1 at the preceding time instant k−1; c) computing an updated version of the frequency-domain channel-estimate vectors Ĥj,k at the current time instant k and for each antenna j of one or more of R receiving antennas on the basis of the received signal vectors Yj,k at the current time instant k and for each antenna j of one or more of R receiving antennas, using the aforesaid estimate Âk of the transmitted digital symbols at the current time instant k as set of known transmitted digital symbols; d) using the aforesaid updated version of the frequency-domain channel-estimate vectors Ĥj,k at the current time instant k and for each antenna j of one or more of R receiving antennas, for equalizing the paths of the transmission channel and decoding the received signal vectors Yj,k at the current time instant k and for each antenna j of one or more of R receiving antennas; and e) storing the updated versions of the channel-estimate vectors for using them in steps a) and b) at the next time instant k+1.
Method and apparatus for performing channel shortening equalization with frequency notch mitigation
A method for performing channel shortening equalization with frequency notch mitigation is provided, where the method is applied to an electronic device. The method includes: obtaining channel response information from channel estimation to determine a relaxed channel convolution matrix corresponding to the channel response information, with the relaxed channel convolution matrix being a partial matrix of a channel convolution matrix corresponding to the channel response information, wherein the relaxed channel convolution matrix is obtained from omitting a portion of matrix elements of the channel convolution matrix; and based upon the relaxed channel convolution matrix, jointly performing time domain channel shortening control and frequency domain flatness control over the TEQ to perform channel shortening equalization with frequency notch mitigation by utilizing the TEQ. In particular, the portion of matrix elements includes a plurality of rows of matrix elements within the channel convolution matrix. An associated apparatus is also provided.
Apparatus and method for receiving signals in a vehicle
At a vehicle, a first signal is received and the first signal is of an ASK-compliant modulation type. A second signal is received and the second signal is of a FSK-compliant modulation type. Based upon a set of predetermined criteria, one of the first signal and the second signal is selected, the predetermined criteria at least in part indicating a priority as between ASK-compliant and FSK-compliant communications. The selected signal is transmitted to a vehicular controller over a single transmission line.
Generating a search set of television white space channels based on location information
A method includes determining, at an electronic device, information associated with a location of the first electronic device. An initial set of television white space channels is filtered based on the information to generate a search set of television white space channels. A passive scan of the search set of television white space channels is performed at the electronic device to identify a television white space access point.
System providing land mobile radio content using a cellular data network
A system and method for providing land mobile radio (LMR) content using a cellular data network is provided. The method includes communicating the LMR content via at least one of an LMR network and a cellular data network. The method further includes encapsulating the LMR content using a packet switching protocol when communicating the LMR content via the cellular data network.
Communication circuit, relay connecting circuit, and communication network
A communication circuit, a relay connecting circuit, and a communication network transmit/receive contact signals usable for automatic control. A transmitting section transmits a contact signal input into an input/output section to a communication line, and a receiving section receives a signal via the communication line. An input/output circuit outputs the contact signal received by the receiving section via the input/output section and performs an interlocking function to prevent input of another contact signal via the input/output section. A time division communication control section switches a communication direction among the transmission section, the receiving section and the input/output circuit at a time-divided timing.
Method and apparatus for authorizing multicast forwarding states
A method and apparatus for authorizing forwarding states in a Layer 2 device of a multicast system includes a forwarding table for use in forwarding communications to group members over interfaces of the Layer 2 device. According to one aspect of the invention, associated with the forwarding state is an authorization flag. The authorization flag signals whether or not the forwarding state is an authorized forwarding state over which multicast communications may be transferred. The Layer 2 device snoops authorization communications between a host and a layer 3 device, and updates the forwarding table authorization flags in response to these communications.
Viewing data as part of a video conference
The integration of data and video conference data allows presentations to be given more effectively and people to write down things which are hard to deliver using speech alone, for example mathematical formulae. Often when giving a presentation though it can be advantageous to be able to interact not only with a person verbally but also on a written level, for example a user may wish to draw on slides being used in a presentation to illustrate a point. At present only one user can transmit this type of data to the participants at any one time and only to participants having an H.239 compatible endpoint. The presentation invention enables multiple users to interact using written rather than spoken means without having to pass permission to transmit written data from one participant to another.
Scalable multicast route distribution in a multitenant data center fabric in a network environment
A method is provided in one example embodiment and includes determining a route target (“RT”) membership for a network element; determining at least one attribute for the RT membership; and advertising the RT membership with the at least one attribute to other network elements. The at least one attribute may include an RT membership type attribute for indicating whether the RT membership is due to a local virtual network connection, transit support, or both. Additionally or alternatively, the at least one attribute may include a distribution tree binding attribute for indicating a distribution tree for the RT membership.
Usage monitoring after rollover
Various exemplary embodiments relate to a method and related network node including one or more of the following: determining a session to roll over; determining whether usage monitoring at a usage monitoring node is currently disabled for the session; and if usage monitoring at the usage monitoring node is currently disabled for the session, sending a message from the session management node to the usage monitoring node, wherein the message includes an instruction to enable usage monitoring for the session. Various alternative embodiments additionally include one or more of the following: waiting for a length of time to receive a usage report at the session management node from the usage monitoring node; wherein the step of sending a message from the session management node to the usage monitoring node is only performed when a usage report is not received during the length of time.
Physical layer management system
An Ethernet outlet senses the presence of an Ethernet signal and transmits an Ethernet ID signal in response to the restoration of an Ethernet signal that was interrupted. The sensing circuit is designed to have no detrimental effect on Ethernet signals. Using this system, the locations of Ethernet outlets and network endpoint devices connected to the outlets can be determined following the interruption and reestablishment of network communications. Outlets according to the present invention can be used in copper-based networks or in networks having fiber optic components.
System and methods for managing trust in access control based on a user identity
System and methods for managing trust in access control are based on a user identity, in a Universal Plug and Play (UPnP) network. A device has an access control list (ACL), a trusted-to-identify access control list (TIA), and a first TIA management module configured to manage the TIA. A security console is communicatively coupled to the device via the network. The security console has a second TIA management module. The first TIA management module is able to implement an add request from the security console for adding an entry to the TIA. The entry includes a control point identity for a control point communicatively coupled to the device via the network.
Secure password management systems, methods and apparatuses
The systems, methods and apparatuses described herein provide a computing environment for authenticating a user. An apparatus according to the present disclosure may comprise a non-volatile storage, a user interface, and a password engine. The password engine is configured to retrieve two or more predetermined prompts from the non-volatile storage, present the two or more predetermined prompts on the user interface to a user in a random order, receive a first set of input(s) in response to the two or more predetermined prompts, create an encryption keyword from the received first set of input(s) according to an original order of the two or more predetermined prompts stored in the non-volatile storage, and use the encryption keyword to authenticate the user.
The present disclosure includes methods and devices for parallel encryption/decryption. In one or more embodiments, an encryption/decryption device includes an input logic circuit, an output logic circuit, and a number of encryption/decryption circuits arranged in parallel between the input logic circuit and the output logic circuit. For example, each encryption/decryption circuit can be capable of processing data at an encryption/decryption rate, and the number of encryption/decryption circuits can be equal to or greater than an interface throughput rate divided by the encryption/decryption rate.
Internal jitter tolerance tester with an internal jitter generator
Exemplary embodiments of the present invention relate to an internal jitter tolerance tester. The internal jitter tolerance tester may include a digital loop filter consisting of a cyclic accumulator which accumulates a phase detector's output, a gain multiplier, an internal accumulated jitter generator (or an internal sinusoid jitter generator), and a phase rotator (or DCO) controller.The internal accumulated jitter generator may include a PRBS generator, a digital loop filter, an accumulator, and a gain controller. The accumulated jitter generator also may be replaced with the internal sinusoid jitter generator. The internal sinusoid jitter generator may include a counter, a sinusoid jitter profile lookup table, and a gain controller.
Apparatus and method for generating MAC protocol data unit in wireless communication system
An apparatus and method for generating a Media Access Control (MAC) Protocol Data Unit (MPDU) in a wireless communication system are provided. The method includes reconstructing at least one MAC Service Data Unit (MSDU) according to scheduling information of the MAC layer and generating at least one MAC Protocol Data Unit (MPDU) data portion, adding control information to each MPDU data portion and generating at least one MPDU payload, the control information comprising MSDU information constituting each MPDU data portion, adding a General MAC Header (GMH) to each MPDU payload and generating at least one MPDU, the GMH including length information on the MPDU and Connection IDentifier (CID) information, and transmitting the MPDU to a receive end.
Apparatus and method for automatic repeat request with reduced resource allocation overhead in a wireless VoIP communication system
A base station (103) assigns a set of mobile stations (101) to a group wherein the group will share a set of radio resources (770). A shared control channel information element (501) is sent to the group of mobile stations (101) and provides a bitmap having fields for group ordering (511), resource allocations (530), continuation resources (540) for HARQ, and an ordering pattern (513). If a mobile station requires retransmission it will access the resources indicated by the continuation resources field (54) in order to receive data. The HARQ blocks may be assigned to a mobile station based upon an index (601) which may correspond to the mobile station vocoder rate. Further, HARQ subgroups may be defined to associate subgroups of mobile stations with specific HARQ transmission opportunities on the super-frame and allocated by a rotating bitmap.
Method and apparatus for providing acknowledgement information to radio communication devices in a wireless communication system
A method and apparatus for providing acknowledgment information for radio communication devices in a wireless communication system. A base station receives a plurality of units of data each respectively transmitted by one of a plurality of radio communication devices on one of a plurality of predetermined communication slot positions of a first channel. The base station, in response to receiving the data messages, sends a control message on a communication slot position of a second channel. The control message includes acknowledgment information having a plurality of positional acknowledgment indicators. Each radio communication device receives the control message and uses acknowledgment position mapping information to identify one or more positions within the plurality of positional acknowledgment indicators that contains an acknowledgment to the respective units of data it transmitted on the corresponding predetermined communication slot positions of the first channel.
System and method for account identifier obfuscation
A method is disclosed. The method includes generating an obfuscated portion using a dynamic cryptogram unique to a transaction, where the dynamic cryptogram is determined using a uniquely derived key. The method also includes replacing a middle portion of the account identifier with the obfuscated portion to form an obfuscated account identifier.
Intercepting key sessions
In some implementations, a method for providing a session key to a third party includes identifying a private key associated with a public key certificate in response to an event. A session key for a communication session is based, at least in part, on the private key, an associated seed for a random number generator, and public keys assigned to user equipment participating in the communication session. The private key associated with the public key certificate is automatically transmitted to an interception authority. The interception authorities are configured to grant a third party access to the private key and the associated seed to in response to a request from a third party authorized to access the communication session.
System, method, and program for information management
A system and method of decrypting is provided. The method includes grouping domain data of the domain for authorized parties, encrypting a group of leaves in the grouped data having a tree structure using a common key, generating first public data, obtaining a common key by decrypting the first public data using a secret key of a link creator and decrypt the groups using the common key and the secret key, generating a, propagating records, generating second public data by encrypting the table using a common key, obtaining a common key by decrypting the first public data and the second public data using a secret key and generating a view by decrypting data received from a method for the link creator using the common key obtained by decrypting the first public data and the second public data using the secret key.
Information processing apparatus, IC chip, and information processing method
There is provided an information processing apparatus including an encrypted-ID generation section which encrypts a unique ID to generate an encrypted ID, the unique ID being set as an ID unique to the information processing apparatus, a communication section which sends the encrypted ID as ID information to be sent to another apparatus, an individualization code holding section which holds, in advance, an individualization code capable of being generated by decrypting the ID information in the other apparatus, and an access key generation section which generates an access key used for authentication with the other apparatus based on the individualization code held by the individualization code holding section.
Integrated cryptographic module providing confidentiality and integrity
An integrated cryptographic apparatus providing confidentiality and integrity includes an integrated cryptographic module including confidentiality and integrity. Further, the integrated cryptographic apparatus includes a hash function unit for detecting whether a message is modified by using the integrated cryptographic module. Furthermore, the integrated cryptographic apparatus includes a block cipher unit for constructing a data encryption algorithm by using the integrated cryptographic module.
Frequency-agile clock multiplier
A clock generating circuit is operated in a closed-loop state to generate an output clock signal that is frequency-locked with respect to an oscillatory input signal. Upon detecting a frequency transition in the input signal, the clock generating circuit is switched from the closed-loop operating state to an open-loop operating state to enable the output clock signal to oscillate at a free-running frequency. A ratio between input signal frequency and the free-running frequency of the output clock signal is determined and used to adjust a frequency-lock range of the clock generating circuit. The clock generating circuit is then switched from the open-loop operating state to the closed-loop operating state to frequency-lock the output clock signal with respect to input signal.
Impaired carrier coding
A method of transmitting a plurality of bits via at least two carriers each having a data rate for achieving transmission despite an impaired carrier, the method includes: receiving the plurality of bits for transmission via the at least two carriers; populating the plurality of bits in a N-dimensional bit structure using an aggregation pattern; producing a coded transmit block having N dimensions, a plurality of encoded rows and a plurality of encoded bits by encoding the N-dimensional bit structure; assigning each of the plurality of encoded bits to each of the at least two carriers; and transmitting the plurality of encoded bits via the at least two carriers.
Method for performing channel interleaving in a multi-antenna wireless communication system, and apparatus for same
A method of transmitting a signal to a base station at a user equipment (UE) in a multi-antenna wireless communication system, can include generating interleaver input vector sequences, wherein the interleaver input vector sequences comprise vectors having a predetermined bit size, mapping the interleaver input vector sequences to an interleaver matrix, generating an output bit sequence by reading the interleaver matrix column by column, and transmitting the output bit sequence to the base station, wherein the predetermined bit size is defined by a product of a modulation order Qpm and the number NL of transmission layers.
MIMO related signaling in wireless communication
Certain aspects of the present disclosure relate to techniques for multiple-input multiple-output (MIMO) related signaling in a wireless communication system. In an aspect, a method for wireless communication is provided which includes receiving a signal associated with a downlink control channel, the signal including information specific to a user equipment (UE); and selecting, based on the information, a UE-specific reference signal (RS) pattern from a plurality of UE-specific RS patterns.
Methods of transmitting and receiving data in mobile transmission system
A method for transmitting and receiving data in a mobile communication system is disclosed. The data transmission method for allowing a transmission end of the mobile communication system to transmit data to at least one reception end via at least one physical channel includes, transmitting a reception indicator, which indicates whether at least one second physical channel is received, via a first physical channel, such that at least one reception end can determine whether the at least one second physical channel is received using the reception indicator, and transmitting data via a third physical channel controlled by the first physical channel. So, a sleeping time for reducing power consumption can be explicitly indicated by the above data communication method, such that power consumption required for transmitting and receiving data can be minimized.
Method and apparatus using cell-specific and common pilot subcarriers in multi-carrier, multi-cell wireless communication networks
A multi-carrier cellular wireless network (400) employs base stations (404) that transmit two different groups of pilot subcarriers: (1) cell-specific pilot subcarriers, which are used by a receiver to extract information unique to each individual cell (402), and (2) common pilots subcarriers, which are designed to possess a set of characteristics common to all the base stations (404) of the system. The design criteria and transmission formats of the cell-specific and common pilot subcarriers are specified to enable a receiver to perform different system functions. The methods and processes can be extended to other systems, such as those with multiple antennas in an individual sector and those where some subcarriers bear common network/system information.
Integrated circuit for controlling a process
A radio transmission apparatus performs communications with high transmission efficiency. In this apparatus, a modulator modulates data and outputs to a first spreader. A second modulator modulates data under a modulation scheme having a higher M-ary number than the first modulator and outputs the modulated data to a second spreader. The first spreader spreads the data and outputs the spread data to a frequency domain mapping section. The second spreader spreads the data and outputs the spread data to a time domain mapping section. A frequency domain mapping section maps chips with spread data on subcarriers in the frequency domain and outputs the data with chips mapped on subcarriers to an IFFT section. The time domain mapping section maps chips with spread data on subcarriers in the time domain and outputs the data with chips mapped on subcarriers to the IFFT section.
Circuits for and methods of implementing a receiver in an integrated circuit device
A receiver in an integrated circuit device is described. The circuit comprises a receiver having a clock and data recovery circuit coupled to receive data signals modulated with a transmitter clock signal; and a clock generator coupled to receive an output of the clock and data recovery circuit, the clock generator providing a modulated reference clock to the receiver, based upon a reference clock signal which is independent of the transmitter clock signal; wherein the modulated reference clock provided to the receiver is synchronized with the transmitter clock signal. A method of receiving data in an integrated circuit is also described.
Transmitting apparatus, receiving apparatus, transmitting method, and receiving method
In order to implement both a physical later pipe (PLP) structure and a plurality of receiver classes, a transmitting apparatus includes: a signaling information generation unit which generates signaling information including a transmission parameter for each of PLPs; a PLP processing group which performs processing based on the transmission parameter for each of the PLPs; and a transmitting unit which transmits data including the generated signaling information and PLP data for each of the PLPs. The PLP data is received by a receiving apparatus that is indicated by a flag of the PLP and is not received by another receiving apparatus, the receiving apparatuses being included in a plurality of receiving apparatuses classified under a plurality of states. The generated signaling information includes, as the transmission parameter for each of the PLPs, the flag of the PLP.
Wireless communication system and wireless communication method
The present invention relates to a radio communications system and a radio communications method, and an object of the invention is to readily reduce the occurrence of collisions of contention channels. In order to achieve the object, radio resources are assigned in different orders between one radio communication and another one radio communication.
Profile-based packet rate adaptation for wireless systems
Bluetooth file transfers using FTP do not provide upper-layer reliability checking and rely on the Bluetooth device physical layer providing reliable data to upper layers of a Bluetooth stack. However, reliability checks implemented by the physical layer are typically not very robust and in some cases may fail to detect errors, thus may provide corrupted data to the upper layers for further processing and may result in data corruption/transfer failure. Non-FTP Bluetooth file transfers are typically more robust when it comes to reliability checking because of upper layer reliability checks. Functionality can be implemented to vary packet transmission parameters depending on a Bluetooth profile implemented on a communication link. A packet error rate of received packets can be compared against a different set of thresholds depending on whether the Bluetooth profile is an FTP profile. Appropriate values of packet transmission parameters can be selected based on the above comparison.
Control signaling for transmission over contiguous and non-contiguous frequency bands
Methods and apparatus are provided for communication between a User Equipment (UE) and a Node B in a communication system by receiving a control signal including a resource allocation type, a resource allocation and a Modulation and Coding Scheme (MCS) from the Node B, and transmitting data based on the control signal to the Node B. The resource allocation type indicate that the resource allocation allocates a first set of at least one contiguous resource block or the resource allocation allocates second sets of resource blocks, and each of the second sets include one or more consecutive resource block groups.
Methods and apparatus for polarization diversity with portable devices via wavefront muxing techniques
A novel terrestrial wireless communications technique for terrestrial portable terminals including hand-held mobile devices and fixed wireless instruments, utilizing a spoke-and-hub communications system, having a plurality of individual hubs and/or base-stations all in communications with the portable terminals. The portable terminals and the hubs are assigned to use incompatible polarity formats in terms of circularly polarity (CP) and linearly polarity (LP). In forward links, a signal processed by the LP ground telecommunications hubs is radiated through multiple antennas with various LP polarities to an individual CP user simultaneously. The multiple paths are organized via assignments of a plurality of polarities, frequency slots, and directions by wavefront multiplexing/demultiplexing techniques such that the same communications assets including frequency spectrum may be re-used by other users. The same polarity diversity methods can be extended to peer-to-peer communications.
Communications system having remotely managed and configured optical network unit
An optical network unit includes a central office interface configured to connect to a central office local loop and customer premises and provide a central office source service. A switch and a switch device is connected to the switch and has at least one service port to provide a local source service. A relay switch is connected to the at least one service port and the central office interface. A processor is connected to the switch and relay switch and configured to receive a command message and in response switch into either the central office interface and provide the central office source service or switch into the service port and provide the local source service.
Method and apparatus for generating a reference signal sequence in a wireless communication system
The present invention relates to a method and apparatus for generating a reference signal sequence in a wireless communication system. User equipment receives a cell-specific sequence hopping parameter from a base station, receives, from the base station, a user equipment (UE)-specific sequence group hopping (SGH) parameter which is specific to said user equipment, and generates a reference signal sequence on the basis of a base sequence number of a base sequence, wherein the base sequence number is determined for each slot on the basis of the cell-specific sequence hopping parameter and of the use equipment-specific sequence group hopping parameter. Here, the determination of whether or not to apply sequence hopping to the base sequence number indicated by the user equipment-specific sequence group hopping parameter overrides that of whether or not to apply sequence hopping to the base sequence number indicated by the cell-specific sequence hopping parameter.
Method and apparatus for inferring user equipment interference suppression capability from measurements report
UE that are able to cancel interference from CRS, a PDSCH, a PDCCH, or a PCFICH may do so without explicitly signaling the capability to the serving eNB. The serving eNB may transmit to the UE a plurality of cell identifiers to indicate from which cells interference should be canceled. The UE receives CRS, PDSCH, PDCCH, or PCFICH from the serving eNB and cancels CRS, PDSCH, PDCCH, or PCFICH interference, respectively from the signal received from the eNB. The UE cancels the interference from the cells that correspond to the cell identifiers. The UE may then transmit a report to the eNB with a quality measurement without the interference.
OPU frame generating device and OPU frame test device
An OPU frame generating device includes a frequency setting unit that sets a frequency corresponding to a bit rate of data which can be stored in a payload area, a parameter calculating unit that calculates a parameter Cm indicating an integer part of the amount of data included in the payload area using the set frequency, a data inserting unit that outputs a timing signal determined by the parameter Cm and inserts data at a position determined by the parameter Cm in the payload area, a data generating unit that generates data in synchronization with the timing signal, and a frame generating unit that generates an OPU frame having the payload area into which the data is inserted.
Audio watermark detection for delivering contextual content to a user
A system and method for delivering content to at least one mobile communication device is disclosed. The system comprises software for detecting an audio watermark in a watermarked audio signal that has been broadcast by at least one local audio transmitter and if necessary triggering an event on the mobile communication device.
Digital radio receiver system and method
Provided is a method of scanning for broadcast services in a broadcast signal to generate a broadcast service list for use with a digital radio receiver system, and the digital radio receiver system used for scanning for broadcast services to generate a broadcast service list. The system utilises spectrum awareness data, which includes data defining one or more frequencies at which broadcast services may be receivable, in order to reduce the number of frequencies to scan such that the overall scan time may be reduced. The data in the spectrum awareness data is a filtered subset of the plurality of frequencies at which the broadcast services may be received, which allows the controller of a digital radio receiver to tune a tuner to only the frequencies that are likely to contain a broadcast service when generating or updating a broadcast service list.
Mobile terminal and broadcast controlling method thereof
A method of controlling a broadcast in a mobile terminal includes receiving data including a first broadcast program of a first broadcast channel and first description information related to the first broadcast program, outputting the received first broadcast program, determining whether or not the received data includes reference time information, extracting first broadcast time information related to the first broadcast program from the first description information when the received data does not include the reference time information, setting a broadcast relevant reference time using the extracted first broadcast time information, and searching previously stored broadcast relevant information for specific broadcast relevant information corresponding to the set broadcast relevant reference time.
Digital coherent optical receiver, control method of the same, and transmission apparatus
A digital coherent optical receiver executing coherent reception of a phase-modulated optical signal, includes: a moving average section configured to execute a moving average for received data obtained by sampling of the phase-modulated optical signal; a compensator configured to compensate a wavelength dispersion value of the phase data having been executed with the moving average; and a control section configured to determine a moving average frequency to be executed by the moving average section based on the compensated wavelength dispersion value.
Modular controller that interfaces with modular optical device
A controller for optical components. A controller includes an analog interface that is configured to connect to an optical component external to the controller. The analog interface is able to deliver and/or receive signals to and/or from the optical component. The controller includes a digital interface that is able to connect to a memory external to the controller. The digital interface may receive a digital representation of operating characteristics of the optical component. The controller is configured to deliver and/or receive signals to and/or from the optical component based on the digital representation of operating characteristics.
Fiber optic network adjustment
A number of fiber optic networks, nodes, and methods are disclosed. One fiber optic network embodiment includes a network module including a star coupler for receiving a signal from a number of nodes and outputting a combined signal, including the received signals, to the number of nodes, and the number of nodes optically connected to the network module, the number of nodes including a transmit module including a first adjustable optical amplifier and a number of optical emitters, a receive module including a second adjustable optical amplifier and a number of receivers, and a controller coupled to the transmit and receive modules for adjusting the first and second optical amplifiers in response to the combined signal.
Method and device for determining output of visible frame in visible light communication system
A method and device for determining an output of a visible frame in at Visible Light Communication (VLC) device are provided. A first VLC device determines whether to permit a second VLC device to generate visible frames, and transmits, to the second VLC device, visible frame information indicating whether the second VLC device is permitted to generate the visible frames.
Signal transmission device and signal transmission method
A signal transmission device includes a signal sender that sends first and second transmission signals of mutually opposite phases, a first transmission path over which the first transmission signal is transmitted, a second transmission path over which the second transmission signal is transmitted, and a signal receiver that converts the first transmission signal received from the first transmission path and the second transmission signal received from the second transmission path into an output signal of a single phase. The signal transmission device differentiates each amplitude of the first and second transmission signals sent from the signal sender, and the signal receiver, based on an amplitude ratio of the first and second transmission signals, converts the received first and second transmission signals.
Digital audio signal compression method and apparatus
Compression of audio signal data is described herein. In various embodiments, the compression of each unit of the audio signal data includes the employment of a distribution substantially representative of a subblock of residual data of the unit of audio signal data, to reduce the amount of data having to be transmitted to transmit the unit of audio signal data to a recipient.
Handling scheduling request collisions with an ACK/NACK repetition signal
Systems and methods for handling of scheduling request collisions with an ACK/NACK repetition signal are provided. In some aspects, a scheduling request (SR) is triggered. The triggering results in a pending SR transmission. The UE determines that the pending scheduling request (SR) transmission would collide with a transmission of a repeated acknowledgement/negative acknowledgement (ACK/NACK) signal. The repeated ACK/NACK signal is part of an ACK/NACK repetition sequence. The ACK/NACK repetition sequence includes an ACK/NACK signal and at least one repeated ACK/NACKm signal. Responsive to the determining, the UE refrains from transmitting the SR and incrementing an SR counter.
Power line carrier transmission apparatus and communication system
A power line carrier transmission apparatus according to an aspect of the present invention is a power line carrier transmission apparatus that transmits a transmission symbol via a transmission path. The transmission apparatus includes a frequency/time interleave unit that interleaves the transmission symbol, an OFDM modulation unit that OFDM-modulates the interleaved transmission symbol, a time-domain repeated transmission unit that repeatedly transmits the transmission symbol, which is modulated by the OFDM modulation unit, M times (M is an integer larger than 1) in a time domain.
System and method for partitioning DSL vector cancellation
A DSL system performs crosstalk cancellation using a plurality of vectoring cancellation chips that are partitioned into two or more groups based on DSL victim lines or DSL disturber lines or DSL tones. Embodiments of the invention include both single-criteria and double-criteria partitioning methods. In double-criteria embodiments, the vectoring cancellation VCE chips are first partitioned into two or more victim DSL line groups and then in each group the VCE chips are further partitioned by disturber DSL line processing. Alternately, the vectoring cancellation VCE chips are first partitioned into two or more disturber DSL line groups and then within each group further partitioned by victim DSL line processing. By partitioning the computation as described herein, the invention reduces the bandwidth and the number of links between the chips, without too much co-ordination complexity. This allows crosstalk cancellation across larger vectored groups.
A fixed bump button may: (1) report its identification to a server connected to the internet when the button is bumped by a mobile device; and/or (2) emit a beacon signal identifying the button to a mobile device.
Calibration method and system for estimating a path difference of a target signal transmitted by a spacecraft or aircraft
A method and system for estimating a path difference between two paths followed by a target signal transmitted by a spacecraft or aircraft to a first receiving antenna and a second receiving antenna of a receiving base, respectively. A useful-phase difference is measured between signals corresponding to the target signal received on the first receiving antenna and second receiving antenna. The path difference is estimated on the basis of the measurements of the useful-phase difference. A calibration signal is transmitted to the receiving base and a calibration phase difference between signals corresponding to the calibration signal received on the first receiving antenna and second receiving antenna is measured. Variations are compensated in the measurements of the calibration-phase difference relative to the measurements of the useful-phase difference.
Method for characterizing a transmitting antenna of a satellite in orbit and associated system
A method for characterizing a transmitting antenna of a satellite in orbit comprising a payload comprising signal amplification means, includes: configuring the said amplification means to generate thermal noise at the input of the transmitting antenna; acquiring, by means of a ground station, the signal transmitted by the transmitting antenna on the downlink of the satellite over a predetermined time period; during the said predetermined time period, controlling the said satellite in orbit in order to impart on it an angular bias of predetermined variation and recording this variation; correlating the measurement of the signal transmitted on the downlink and the variation of angular bias of the satellite in order to derive therefrom the gain variations of the transmitting antenna as a function of the angular bias of the satellite.
Relay device, relay method, and relay device control program
A relay device which can store acquired information in the case where it relays a communication is provided. The relay device of the present invention is provided with: a first connecting means for connecting with a first communication device; a second connecting means for connecting with a second communication device; and a relaying means which is connected with the first communication device using the first connecting means and is connected with the second communication device using the second connecting means, for relaying first information which is communicated between the first communication device and the second communication device, and outputting second information which is all or a part of the first information.
Method, apparatus, receiver, computer program and storage medium for joint detection
The present invention relates a method, apparatus, receiver, computer program for joint detection. In the method, it is firstly determined if whether a number of original active codes is beyond a predefined threshold or not, and when the number of the original active codes is beyond the predefined threshold and a strong interference code exists in the active codes corresponding to intra-frequency adjacent cells, it is to apply an interference cancellation to a receive signal, cancel MAI caused by a strong interference signal corresponding to the strong interference code, and perform a joint detection by utilizing a matched filtering result of a remaining signal after the interference cancellation for the joint detection. According to at least one embodiment of the present invention, when there is large interference in the intra-frequency adjacent cells and the number of the active codes is beyond a maximum threshold, the joint detection performance is improved.
Multiple-input multiple-output (MIMO) communication system
A multiple-input multiple-output (MIMO) capable system is contemplated. The communication system may include a signal processor configured to separate an input stream into multiple signal paths to facilitate simultaneous transport through a communication medium. The capability to simultaneously transmit multiples signal paths may be beneficial in order to maximize throughput and/or minimize expense.
Systems and methods for reducing narrow bandwidth and directional interference contained in broad bandwidth signals
Under one aspect, a system includes circuitry that digitizes and Fourier transforms first and second beams and outputs first and second sets of spectral bins. Each bin may include a portion of a group of signals or interference. The circuitry compares the collective power levels of each set of spectral bins to a predetermined threshold, and excises at least one bin of that set that contains the interference if the collective power level of that set exceeds the predetermined threshold. The circuitry determines an angular location of the interference based on excised bins, combines remaining bins with weights selected to form a null in a pattern of the first and second beams that is aligned with the interference's angular location, and inversely Fourier transforms the combined remaining bins and outputs the group of signals less any interference that was excised or excluded by the null.
Transmission method and related base station
The invention relates to transmission from a base station to a receiver, the base station comprising first radiating means arranged for transmitting according to an antenna pattern with respect to the receiver and further comprising second radiating means arranged for transmitting according to the same antenna pattern as the first radiating means with respect to the receiver, the transmissions of the first and second radiating means being time shifted by a determined duration.
Method and system of interference cancelation in collocated transceivers configurations
The present invention, in some embodiments thereof, relates to a method of cancelling interference in a wireless system, wherein the interference introduced by an interfering signal causing reception of an interfered signal responsive to transmission of a desired signal, the method comprising acquiring the interfering signal from a transmitter during or before transmission thereof, generating an analog cancellation signal based on the acquired interfering signal, and injecting said analog cancellation signal into an interfered receiver receiving said interfered signal to reduce said interference therefrom.
Low complexity maximum likelihood detection of concatenated space codes for wireless applications
Good transmission characteristics are achieved in the presence of fading with a transmitter that employs a trellis coder followed by a block coder. Correspondingly, the receiver comprises a Viterbi decoder followed by a block decoder. Advantageously, the block coder and decoder employ time-space diversity coding which, illustratively, employs two transmitter antennas and one receiver antenna.
Method for transmitting power offset information of secondary common pilot channel and radio network controller
A method for transmitting power offset information of a secondary common pilot channel and a radio network control, including: after a drift radio network control receives request information sent by a serving radio network control and used for requesting the drift radio network control to feed back power offset information of respective secondary common pilot channels of managed target primary and secondary carrier cells, the drift radio network control setting following kinds of information elements with reference to MIMO pilot modes used respectively by target primary and secondary carrier cells: power offset information of a secondary common pilot channel of a single carrier cell, power offset information of a secondary common pilot channel of a primary carrier cell, and power offset information of a secondary common pilot channel of a secondary carrier cell, and feeding back set information elements to the serving radio network control through an IUR.
Terminal apparatus, base-station apparatus, communication system, and communication method
A base-station apparatus (101) and a terminal apparatus (102) communicate with each other in a communication system. When reporting reception quality information together with data to the base-station apparatus via a channel for use in data transmission, the terminal apparatus reports the reception quality information using a spatial multiplexing method identical to a spatial multiplexing method of the data if the reception quality information is reception quality information that is to be nonoperiodically reported, and reports the reception quality information using a spatial multiplexing method independent of the spatial multiplexing method of the data if the reception quality information is reception quality information that is to be periodically reported. When extracting the reception quality information reported together with the data from the terminal apparatus, the base-station apparatus extracts the reception quality information based on the assumption that the spatial multiplexing method of the reception quality information is identical to the spatial multiplexing method of the data if the reception quality information is nonoperiodically reported, and extracts the reception quality information based on the assumption that the spatial multiplexing method of the reception quality information is independent of the spatial multiplexing method of the data if the reception quality information is periodically reported.
Wireless communication system
A wireless communication method used by a wireless communication apparatus is disclosed. The wireless communication method transmits and receives control information divided into a second control information containing information related to the demodulation and decoding of traffic channel and a first control information containing information related to the MIMO separation of the second control information.
Mixing stage, modulator circuit and a current control circuit
A mixing stage includes a first modulation stage that receives an input signal from a first common node of the mixing stage, a first local oscillator input that receives a local oscillator signal, and a first modulation signal output adapted to provide a first modulated signal. A second modulation stage of the mixing stage includes a second input that receives a phase inverted representation of the input signal from a second common node of the mixing stage, a second local oscillator input that receives the local oscillator signal, and a second modulation signal output adapted to provide a second modulated signal. A current generation circuit provides a supply current to the first common node and to the second common node. A current control circuit is adapted to superimpose an offset current to the current of at least one node of the first common node and the second common node.
High-frequency switch module
A low pass filter connected between an individual port of a switch device and a high-frequency switch module attenuates the second harmonic and the third harmonic of a transmission signal input to a first transmission signal input terminal. Further, the inductances/capacitances of inductors and capacitors defining the low pass filter are set such that the phase of a harmonic signal generated by a power amplifier is different by 180° from the phase of a harmonic signal produced as a result of the low pass filter shifting the phase of a harmonic signal generated due to distortion in a switch device, in an end portion on the first transmission signal input terminal side.
Beamforming for non-collaborative, space division multiple access systems
A wireless communication system non-collaborative, multiple input, multiple output (MIMO) space division multiple access (SDMA) system determines subscriber station combining and weighting vectors that yield a high average signal-to-interference plus noise ratio (SINR). Each subscriber station independently transmits information to a base station that allows the base station to determine a weight vector wi for each subscriber station using the determined combining vector of the subscriber station. The ith combining vector corresponds to a right singular vector corresponding to a maximum singular value of a channel matrix between a base station and the ith subscriber station. Each subscriber station transmits signals using a weight vector vi, which corresponds to a left singular vector corresponding to a maximum singular value of a channel matrix between the ith subscriber station and the base station. The base station uses the weight vector wi to determine the signal transmitted by the ith subscriber station.
Context aware multiple-input and multiple-output antenna systems and methods
A method, a system, and a server provide context aware multiple-input-multiple-output MIMO antenna systems and methods. Specifically, the systems and methods provide, in a multiple MIMO antenna or node system, techniques of antenna/beam selection, calibration, and periodic refresh, based on environmental and mission context. The systems and methods can define a context vector as built by cooperative use of the nodes on the backhaul to direct antennas for the best user experience as well as mechanisms using the context vector in a 3D employment to point the antennas in a cooperative basis therebetween. The systems and methods utilize sensors in the nodes to provide tailored context sensing versus motion sensing, in conjunction with BER (Bit Error Rate) measurements on test signals to position an antenna beam from a selection of several “independent” antenna subsystems operating within a single node, as well as, that of its optically connected neighbor.
Method and apparatus for coordinated multi-point communication for each sub-band based on long-term channel state information
Provided is a coordinated communication method and apparatus that may perform coordinated communication based on long-term channel information, for each sub-band. Base stations may exchange scheduling information of each sub-band with each other to determine a priority among the base stations, and may perform rescheduling for each sub-band based on the determined priority. The base stations may obtain the long-term channel information, and thus may reduce overhead occurring with exchanging of information between a base station and a terminal or between base stations, and may decrease damage due to a delay of channel information associated with a terminal.
Shortwave communication device
A shortwave communication device includes first and second carriers, a processing unit, first and second transmission units and a flexible connecting portion, and the first and second transmission units are installed on the first and second carriers respectively, and the first transmission unit is coupled to the processing unit, and the flexible connecting portion is coupled between the first and second carriers, and the flexible connecting portion has a connected line for constituting an electric connection between the processing unit and the second transmission unit. With the flexible connecting portion, relative position of the first and second carriers can be changed freely to expand the transmission range and enhance the transmission effect.
Systems and methods for efficient low density parity check (LDPC) decoding
A method for low density parity code decoding according to one embodiment includes sequentially processing groups of variable node (vnode) values associated with a codeword using a plurality of vnode logic modules and outputting updated vnode values; storing the vnode values and updated vnode values in a vnode memory; sequentially processing groups of cnode values using a plurality of check node (cnode) logic modules and outputting updated vnode values; storing the (mode values and updated (mode values in a mode memory; and checking the codeword using the updated vnode values and the updated mode values.
Digital to-analog conversion apparatuses and methods
A digital-to-analog conversion apparatus to convert a digital signal to an output analog voltage signal includes an analog-to-digital conversion processing circuit and an analog voltage signal output circuit. The analog-to-digital conversion processing circuit is configured to increase a resolution of the digital-to-analog conversion apparatus without increasing a frequency of an input clock signal. The analog voltage signal output circuit is configured to generate the output analog voltage signal based on the input clock signal at the increased resolution of the digital-to-analog conversion apparatus.
Multi-function reconfigurable delta sigma DAC
An interleaved digital to analog converter (DAC) includes at least a first signal path and a second signal path. The DAC further includes at least a first high speed DAC and a second high speed DAC each having an input and an output. The first signal path and the second signal path are electrically coupled to the first high speed DAC input and the second high speed DAC input, respectively. The DAC also includes a zero phase clock signal supplied to the first high speed DAC and a 180° phase shifted clock signal supplied to the second high speed DAC. A summation circuit, having at least two inputs and one output, is coupled to the outputs of the first high speed DAC and the second high speed DACs. A high-pass delta sigma modulator, a low-pass delta sigma modulator, a band pass delta sigma modulator, or notch filter delta sigma modulator is coupled between the first signal path and the first high speed DAC. A second a high-pass delta sigma modulator, a second low-pass delta sigma modulator, a second band pass delta sigma modulator, or a second notch filter delta sigma modulators electrically coupled between the second signal path and the second high speed DAC.
Low power analog to digital converter
Described is an analog to digital converter (ADC) which comprises: a sigma-delta modulator to receive an analog signal, the sigma-delta modulator operable to perform chopping to cancel common-mode noise; and one or more counters coupled to the sigma-delta modulator to generate a digital code representative of the analog signal.
Data processing system
The present invention provides a data processing system which can increase resolution and which has excellent tracking with respect to the switching of a conversion range and is small in conversion error. The data processing system, which obtains an A/D conversion result after an n (where n: positive integer)-bit extension made to the resolution of an A/D converter, divides the input range of the A/D converter by m (2n≦m), determines to which divided range the A/D conversion result by the A/D converter belongs with respect to an analog signal to be measured, amplifies an amp offset which defines the range of the determined divided range as a voltage range for the input range of the A/D converter by applying the amp offset to a programmable gain amplifier, converts the amplified signal by the A/D converter, and adds a corresponding digital offset to a result of execution of a lower side bit extension to the conversion result and a division thereof by actually measured gain of the programmable gain amplifier, whereby an A/D conversion result with a bit precision being n-bit extended is obtained.
Method and apparatus for clockless conversion of instantaneous voltage value to digital word
The method includes the accumulation of electric charge in the sampling capacitor (Cn) by parallel connection of the sampling capacitor (Cn) to the source of converted voltage (UIN) and in realization of the process of charge redistribution in the array of redistribution (A) by changing states of signals from relevant control outputs and in assignment of relevant values to bits in the digital word by means of the control module (CM). After detection of the beginning of the next trigger signal (Px+1), the charge is accumulated in the additional sampling capacitor (CnA), and then the process of charge redistribution is realized and relevant values are assigned to bits of the digital word. The apparatus includes an array of redistribution (A), the section of the sampling capacitor (An), the control module (CM), two comparators (K1 and K2) and the current source (J) connected in a known way.
PLC/wireless device coordinated wireless transmissions
A Power Line Communications (PLC) device includes a PLC interface, a wireless interface, a processing module, and memory. The PLC device communicates with a second PLC device via the PLC interface to establish a wireless transmission timing base, communicates with the second PLC device via the power mains to coordinate simultaneous wireless data transmissions to a client device from the PLC device and the second PLC device, wirelessly transmits data to the client device based upon the wireless transmission timing base and the coordination with the second PLC device. In combination the PLC devices' simultaneous wireless data transmissions may be Multiple Input Multiple Output (MIMO) transmissions, diversity transmissions, and/or beam formed transmissions. In another operation, the PLC device characterizes its surroundings based upon concurrent directional transmission and receipt of wireless transmissions by the PLC device.
Clock generation circuits using jitter attenuation control circuits with dynamic range shifting
An apparatus includes a phase locked loop (PLL) circuit configured to generate a PLL output signal from an oscillator signal and a control circuit configured to generate a measure of a difference between the PLL output signal and an input clock signal at a control output thereof. The apparatus further includes a dynamic range shifter circuit coupling the control output of the control circuit to a control input (e.g., a feedback divider control input) of the PLL circuit and configured to shift a dynamic range of the control output of the control circuit with respect to a dynamic range of the control input of the PLL circuit. The apparatus may be implemented with an oscillator, such as a MEMs oscillator, in a single chip.
Semiconductor device having DLL circuit
Disclosed herein is a device includes a first delay circuit delaying a first clock signal according to a count value to generate a second clock signal, a phase determination circuit comparing a phase of the first clock signal with a phase of the second clock signal to generate a phase determination signal, an up-down counter updating the count value according to the phase determination signal each time an update signal is activated, and an update control circuit generating the update signal at a variable interval.
Signal distribution networks and related methods
A signal distribution network has segments that each have a buffer circuit, a transmission line coupled to the buffer circuit, an inductor coupled to the buffer circuit through the transmission line, and a variable capacitance circuit coupled to the inductor and coupled to the buffer circuit through the transmission line. A capacitance of the variable capacitance circuit is set to determine a phase and an amplitude of a signal transmitted through the transmission line. A signal distribution network can include a phase detector, a loop filter circuit, and a resonant delay circuit. The phase detector compares a phase of a first periodic signal to a phase of a second periodic signal. The resonant delay circuit has a variable impedance circuit having an impedance that varies based on changes in an output signal of the loop filter circuit.
Generating delay values for different contexts of a circuit
Approaches for generating delay values for instances of a circuit include inputting possible contexts of the circuit. Each context includes a respective delay value and a combination of possible types of a plurality of characteristics of the circuit, and each characteristic is of one type of a plurality of alternative types of the characteristic. A plurality of classification parameters is input and the classification parameters indicate selected ones of the characteristics. Groups of contexts are selected based on the plurality of classification parameters. Each group includes one or more of the contexts, and each context includes the plurality of characteristics. A combination of types of the selected characteristics in each context in a group is equal to the combination of types of the selected characteristics of each other context in the group. For each group, a mean and a standard deviation of the respective delay values are determined and output.
Adjustable data drivers and methods for driving data signals
Apparatuses and methods for driving input data signals onto signal lines as output data signals are disclosed. An example apparatus includes a detection circuit, a driver adjust circuit, and a data driver. The detection circuit is configured to detect a characteristic(s) of a group of input data signals to be driven onto adjacent signal lines. A characteristic could be, for example, a particular combination of logic levels and/or transitions for the group of input data signals. The driver adjust circuit is configured to provide a driver adjustment signal based at least in part on a detection signal, that is provided by the detection circuit. A data driver is configured to drive a respective one of the group of input data signals as a respective one of the output data signals, wherein the data driver is adjusted based at least in part on the driver adjustment signal.
Voltage scale-down circuit
A circuit for scaling down first and second input voltages includes first and second voltage scale-down circuits that scale down the first and second input voltages, respectively. The first voltage scale-down circuit includes a transistor that receives the first input voltage at its gate and, operating in a source-follower configuration, scales down the first input voltage to generate a first output voltage at its source. The second voltage scale-down circuit is identical to the first voltage scale-down circuit and generates a second output voltage based on the second input voltage.
Circuit for driving high-side transistor utilizing voltage boost circuits
A circuit for driving a transistor includes a drive circuit, a first voltage boost circuit and a second voltage boost circuit. The drive circuit has a first specific node, a second specific node, and a third specific node coupled to a control node of the transistor. The drive circuit is arranged for coupling the first specific node to the third specific node according to at least a voltage of the first specific node and a voltage of the second specific node in order to charge the control node. The first voltage boost circuit is coupled between the first specific node and a connection node of the transistor, and is arranged for boosting the voltage of the first specific node. The second voltage boost circuit is coupled between the first specific node and the second specific node, and is arranged for boosting the voltage of the second specific node.
Method and system for compensating mode conversion over a communications channel
A circuit can compensate for intra pair skew or mode conversion in a channel by applying a second or corrective mode conversion effect that counters the channel's mode conversion. The circuit can process the common mode signal with a frequency dependent filter prior to injection back into the differential mode. The circuit can implement the reverse mode conversion with passive circuits using integrated resistors and metal oxide semiconductor (MOS) switches. In certain embodiments, such actions can proceed effectively without necessarily consuming active power.
Method to control slew rate of a current-mode logic output driver
A method is provided for selecting at least one of a plurality of slew rate control settings based at least upon a speed of data transmission and receiving input data where the input data is received at the data transmission speed. The method also includes switching the received input data in accordance with the selected at least one of a plurality of slew rate control settings and sending output data at the data transmission speed. Also provided is data driver device that includes at least one activation portion comprising one or more slew rate controls, a voltage-mode driver portion and at least a first current-mode driver portion. Also provided is a computer readable storage device encoded with data for adapting a manufacturing facility to create the data driver device. Also provided is a system including the data driver device, a data storage device and a processor device.
Feed-forward linearization without phase shifters
A method and system for providing a finite impulse response, FIR, filter in a power amplification system are disclosed. An FIR filter includes a first signal path having a first delay, τ1. The first signal path is configured to receive an output from a power amplifier. A second signal path is in parallel with the first signal path has a second delay, τ2, and a first scalar multiplier, α1. A third signal path in parallel with the first and second signal paths has a third delay, τ3, and a second scalar multiplier, α2. The second and third signal paths are configured to receive a sum of the output of the power amplifier and a reference signal. Delays τ1, τ2, and τ3 are integer multiples of a period of time. An output is a sum of a signal from each of the first, second and third signal paths.
Wireless energy distribution system
Described herein are systems for wireless energy transfer distribution over a defined area. Energy may be distributed over the area via a plurality of repeater, source, and device resonators. The resonators within the area may be tunable and the distribution of energy or magnetic fields within the area may be configured depending on device position and power needs.
Frequency stabilization circuit, antenna device, and communication terminal apparatus
A frequency stabilization circuit includes a primary side circuit connected to a feeder circuit, and a secondary side circuit electromagnetically coupled to the primary side circuit. The primary side circuit is a series circuit including a first coiled conductor and a second coiled conductor, and the secondary side circuit is a series circuit including a third coiled conductor and a fourth coiled conductor. An antenna element is connected through a high pass filter to a first antenna connection portion set as a connection point of the first coiled conductor and the second coiled conductor. Additionally, the antenna element is connected through a low pass filter to a second antenna connection portion set as a connection point between the second coiled conductor and the fourth coiled conductor.
Methods and systems for controlling the volume of infotainment units of vehicles
A method for controlling a volume of an infotainment unit of a vehicle having an engine having a stop/start capability during operation of the vehicle includes the steps of obtaining information pertaining to a condition of the engine, and controlling the volume based at least in part upon the condition.
Method and apparatus for circuit with low IC power dissipation and high dynamic range
An apparatus comprises a selected volume detector that detects a selected output volume; an analog output signal amplifier; a digital volume amplifier; a boost gain control element coupled to the selected volume detector; the analog output signal amplifier; and the digital volume amplifier; wherein the boost gain control element is configured to: keep a gain of a path of the digital volume amplifier and the analog output signal amplifier substantially constant, wherein the boost gain control element can adjust both: a) a gain of the digital volume control; and b) a gain of the analog output signal amplifier; to keep the gain of the path of the digital volume amplifier and the analog output signal substantially constant and equal to the selected output volume.
Adaptive sound field control
The present invention relates to methods and systems for determining an equalization filter for one or more loudspeakers provided in an enclosure, such as a listening room or an automobile cabin. A method for determining an equalization filter for one or more loudspeakers provided in an enclosure comprises the steps of providing the one or more loudspeakers with an audio input signal whereby a sound field is generated in the enclosure; determining an acoustic contribution or room gain of the enclosure to the generated sound field; forming a speaker equalization filter as the square root of the ratio between a target acoustic power output and the actual acoustic power output from the loudspeaker driver(s), which actual acoustic power output is calculated as the square of the power averaged sound pressure divided by the room gain; and determining the equalization filter as the speaker equalization filter.
Voltage controlled amplifier and method of using the same
A simplified VCA circuit is presented. The VCA of the present invention uses fewer components and is less complex than prior art OTA-based VCAs. Further, the VCA of the present invention has improved total harmonic distortion (THD) and DC offset characteristics as compared to prior art VCAs. The VCA may be used to prevent clipping with the addition of clipping detection circuitry.
High speed transimpedance amplifier
A high speed transimpedance amplifier includes an inverting unit, at least one gain module, and a feedback resistor. The inverting unit has an input terminal coupled to a photodiode for receiving an input voltage, and an output terminal for outputting a first voltage. The at least one gain module has an input terminal coupled to the output terminal of the inverting unit for receiving the first voltage, and an output terminal for outputting an output voltage. Each gain module includes a first gain inverting unit and a second gain inverting unit which are coupled to each other. The first gain inverting unit and the second gain inverting unit dominate bandwidth of the high speed transimpedance amplifier. The feedback resistor is coupled to the input terminal of the inverting unit and the output terminal of the at least one gain module for determining a transimpedance of the high speed transimpedance amplifier.
To effectively control the amplitude vs. power supply voltage characteristics, for example, in an ET amplifier. An amplifying device for amplifying an input signal wherein: amplifier means (4) amplifies the input signal; amplification control means (5, 7) control the power supply voltage to the amplification means on the basis of the input signal; first detection means (14) detects the amplification factor between the input signal and a feedback signal obtained by means of a feedback of the signal that has been amplified by the amplification means; second detection means (14) detects the variance of the amplification factors for each value or range of the amplitude of the input signal; and amplification control update means (14) performs an update so as to increase the power supply voltage with respect to a value or range of amplitude that exhibits a variance in excess of a predetermined threshold value, or to reduce the power supply voltage with respect to a value or range of amplitude that exhibits a variance lower than the predetermined threshold value.
Apparatus and method for amplifying a signal from a transmitter
The subject matter discloses a method of amplifying a signal, the method comprising receiving a command to start transmission, gradually increasing a value of an enable signal used to amplify the transmission and intermittently transmitting the value of the enable signal to an enable transistor used to allow amplifying a transmitted signal.
Systems and methods for a radio frequency transmitter with improved linearity and power out utilizing pre-distortion and a GaN (gallium nitride) power amplifier device
Various embodiments provide for systems and methods for increased linear output power of a transmitter. An exemplary wireless communications system for transmitting an input signal comprises a predistorter module, a GaN power amplifier, a coupler, and an antenna. The predistorter module is configured to detect existing distortion by comparing the input signal to a feedback signal and generate a correction signal. The predistorter may adaptively adjust its operation to minimize the existing distortion due to GaN power amplifier nonlinear characteristics. The result is that the GaN power amplifier may send a power signal of improved linearity to the antenna. The coupler is configured to sample the amplified signal from the GaN power amplifier to generate the feedback signal. The antenna is configured to transmit the amplified signal.
Apparatus for compensating for distortion of transmitter array in radio communication system and method for controlling the same
Provided is a method in which a Digital Pre-Distorter (DPD) performs digital pre-distortion on a received In-phase (I) signal, a received Quadrature-phase (Q) signal, a feedback I signal, and a feedback Q signal; a mixer mixes a signal output from the DPD with a frequency signal output from an oscillator; each of n phase shifters phase-shifts a signal output from the mixer according to a preset beamforming pattern; each of n Power Amplifiers (PAs) amplifies a signal output from an associated phase shifter according to a gain, the PAs connected to the associated phase shifter on a one-to-one basis; each of n envelope detectors detects an envelope signal from a signal output from an associated PA, the envelope detector connected to the associated PA on a one-to-one basis; and a control unit determines whether the n PAs operate normally, using the envelope signals output from the n envelope detectors.
Power amplifier, radio-frequency power amplification device, and amplification control method
The present invention allows amplification with low distortion and high efficiency.A power amplifier of the present invention comprises signal conversion means which generates a digital signal and an analog signal from an input signal that is an amplification target based on a signal generation parameter, a switching amplifier which amplifies the digital signal, a linear amplifier which amplifies the analog signal, and DC level detection means which detect a DC level of at least one of the signal amplified by the linear amplifier and the amplified signal and output a detection result to the signal conversion means, wherein the signal conversion means adjust the signal generation parameter so that the DC level inputted by the DC level detection means is virtually equal to zero.
Method of operating a power amplifier in class F/inverse class F
A system and method for amplifying and wave shaping a signal is presented. A system includes a Class F/Inverse Class F radio frequency (RF) power amplifier (PA). The RF PA includes an amplifier and an output matching network. The amplifier amplifies a radio wave signal to produce and an amplified signal. The output matching network wave shapes the amplified signal using a plurality of tuning stubs to generate an output signal. The tuning stubs operate at different harmonics of the amplified signal. When operating in a Class F mode the plurality of tuning stubs act as short circuits at even harmonics and the plurality of tuning stubs act as open circuits at odd harmonics. When operating in an Inverse Class F mode the plurality of tuning stubs act as open circuits and at even harmonics the plurality of tuning stubs act as short circuits at odd harmonics.
Radio frequency power amplifier with no reference voltage for biasing and electronic system
A radio frequency (RF) power amplifier with no reference voltage for biasing is disclosed. The RF power amplifier includes a three-terminal current source circuit, a current mirror circuit and an output-stage circuit. The three-terminal current source circuit receives a first system voltage and accordingly outputs a first current and a second current, and a source voltage exists between a first output terminal of the first current and a second output terminal of the second current. The current mirror circuit receives the first current and the second current and accordingly generates a bias current. The output-stage circuit receives the bias current so as to work at an operation point. The RF power amplifier utilizes the source voltage of the three-terminal current source circuit so the first system voltage is between a first voltage and a second voltage, and then the output-stage circuit outputs an output current which does not vary with a deviation of the first system voltage also with temperature compensation.
Amplifier and switch configured as multiplexor
A system and method is disclosed for selecting between two electronic signals, one of high quality, such as music audio, and the other of low quality, such as telephone call audio, in a smart phone, tablet or other device. In one embodiment, when the low quality signal is to be used this is accomplished by disabling the amplifier output to disconnect the high quality audio signal from the output port, rather than by means of a switch between the amplifier and the output port as in the prior art. This eliminates degradation of the signal due to the switch when the high quality signal is to be used. The amplifier typically has an associated feedback resistor network, and this may also be disconnected by means of a switch when the low quality signal is to be used, thus preventing distortion of the low quality signal due to the feedback network being a parallel load to the output port.
Electrically adjustable antenna control system and method
An electrically adjustable antenna control system includes a controller, an actuation mechanism controlled by the controller, and a feedback loop connected to both of the controller and actuation mechanism. Herein, the controller includes a control board and its imbedded program. The actuation mechanism includes a DC geared motor controlled by the control board and embedded program and an electrically adjustable antenna phase shifter driven by the geared motor. The feedback loop has a travel plate electrically coupled to both of the control board and DC geared motor and a counter device installed on the geared motor. The present invention also provides an electrically adjustable antenna control method realized by the above-mentioned electrically adjustable antenna control system.
Method for checking the plausibility of the torque of an electric machine and machine controller for controlling an electric machine and for carrying out the method
A method for checking the plausibility of a torque of an electric machine, calculated on the basis of a machine model, in which a first value of an electromagnetic power of the electric machine is determined from the calculated torque and a rotational speed of the electric machine. Stator current components and stator phase voltage components are calculated from the stator currents and the stator phase voltages with respect to a reference system, which is fixed in relation to the stator. A second value of the electromagnetic power of the electric machine is determined from the stator current components and the stator phase voltage components. If a deviation of the first value of the electromagnetic power of the electric machine from the second value exceeds a predefined power threshold value, the torque of the electric machine, calculated on the basis of the machine model, is classified as implausible.
Electric power steering device
A microcomputer calculates an internal resistance value of a motor, and subsequently calculates an internal resistance value of a switching element of a motor drive circuit. When the internal resistance value of the motor is a semi-abnormal value, the microcomputer sets an upper limit current. When the internal resistance value of the motor drive circuit is a semi-abnormal value, the microcomputer sets an upper limit current. The microcomputer sets a smaller one of the upper limit current and the upper limit current as an upper limit current of the motor. In this manner, the progress of degradation of the motor and the motor drive circuit can be suppressed.
Inverter control system
A LPF extracts DC component of a current detection value of an inverter input current. A subtracting section 4 calculates a difference between a current command value and the DC component of the current detection value. A current controller 5 produces two-phase PWM signals Sa and Sb complementary to each other, from the current difference. Further, an integrating circuit 7 integrates output terminal voltages Vu, Vv and Vw of the inverter to convert the output terminal voltages Vu, Vv and Vw into a magnetic-flux information Φu, Φv and Φw. A logic conversion section 8 converts the magnetic-flux information Φu, Φv and Φw into 120-degree conduction patterns S1′-S6′ to output the 120-degree conduction patterns S1′-S6′. Then, a logic circuit section 9 executes a logic synthesis between the PWM signals Sa and Sb and the 120-degree conduction patterns S1′-S6′ to output gate signals S1-S6.
Multi-driving device and driving circuit thereof
A driving circuit comprises three switch groups, each comprising a first switch, a second switch, a third switch and a fourth switch. The first and the second switches are coupled in series. The third switch is serially coupled to the fourth switch and coupled between the first and the second switches. An ith inductor of a first driving device is coupled between the third and the fourth switches, wherein i ranges between 1˜3. In high speed mode, the first and the third switches of one of the switch groups are turned on, the second and the fourth switches are turned off, the first and the third switches of another of the switch groups are turned off, the second switch is turned on, and the fourth switch is turned on or off to raise voltage of the a driving device.
Solar energy collection system
A system for collecting solar energy using a plurality of energy collection elements arranged in a planar array within a stationary base structure, each comprising: an energy capture unit with optical means of focusing directional sunlight parallel to its axis onto one or more sunlight-to-electricity converters within itself, and means of sensing divergence of its axis from the sun's direction; and an angular positioning unit that orients said capture unit about two nested axes by slidably mounting two arcuate tracks in opposed and perpendicular arcuate slots, a convex track within said energy capture unit and a concave track within said base structure, each said slot equipped with a drive apparatus that engages its respective track and moves the positioner along it. The invention provides methods for determining the shapes and arrangement of such elements so as to maximize aperture efficiency while preventing collisions of adjacent elements.
Wind power generation device
Provided is a wind power generation apparatus to which general purpose inverters are applicable. An inverter in a constant-voltage mode is used. While a wind power generator is generating electricity, switching circuits are turned on and off at a controlled duty cycles to intermittently short-circuit an armature winding, boosting the voltage and controlling the rotational speed of a windmill rotating blade, with the result that the voltage applied to the inverter is made constant. At the activation, in order to prevent an excessive voltage from being generated while an inverter is changing from the stand-by state to the activated state, ON/OFF control of a switching circuit is performed to switch between the output voltage of a rectifier and the voltage generated at a resistor, with the result that the voltage is controlled and maintained at an appropriate value.
Motor driving device and vacuum pump
A motor driving device comprises an inverter, a first arithmetic section, a driving command generating section and a PWM signal generating section. The first arithmetic section calculates a rotational speed and a magnetic pole electrical angle of a motor rotor based on information about a motor phase voltage and information about a motor phase current. The first arithmetic section includes a counter electromotive voltage arithmetic section, a converting section, a second arithmetic section, a third arithmetic section, and a fourth arithmetic section. The first arithmetic section outputs a sum of the magnetic pole phase error and the integrated value as the magnetic pole electrical angle.
Method for operating an at least three-phase electric machine, used as a drive assembly in a motor vehicle, and control unit for an inverter
In a method for operating an at least three-phase electric machine used as a drive assembly in a motor vehicle, which is actuated via an inverter, the inverter including switching elements in the form of half bridges which are in each case electrically connected to a respective phase of the electric machine, when a first switching element of a first half bridge connected to a first phase is permanently closed/opened on account of failure, a second switching element of the first half bridge is permanently opened/closed and, in a first angular range of an electrical rotation, which is uninfluenced by the first phase, all switching elements of the additional half bridges are actuated in the usual manner.
Control device of AC motor
A control device for controlling an AC motor with an inverter includes: a current acquisition device of a sensor phase current sensed value of the motor in a sensor phase current sensing cycle; a rotation angle acquisition device of a rotation angle sensed value of the motor; a current command value operation device for updating a current command value in a command update cycle; a current estimation device; a voltage command value operation device; a drive signal generation device; and a sudden change prevention device for preventing the voltage command value from a sudden change according to a sudden change in the current estimated value. The sudden change of the current estimated value is caused by a sudden change in the current command value.
Determination of hysteresis controller band for IPMSM-based drive system
Methods of providing a control band for a hysteresis controller are presented. A method can determine a control band analytically to avoid the time and costs associated with manual calibration of a hysteresis controller. By way of example, a method can include modeling a machine output, such as stator flux or machine torque, modeling the variation rate for the machine output, and providing a control band based on the variation rate modeling.
Direct AC power converting apparatus
Capacitors are connected in series between a first DC link section and a second DC link section when the capacitors are charged by a regenerative current derived from an inverter section. During discharge, as first, second switching circuits turn on, the capacitors are discharged with those capacitors connected in parallel between a first DC link section and a second DC link section.
Medium voltage inverter control apparatus and medium voltage inverter system
An exemplary embodiment of the present disclosure includes a medium voltage inverter control apparatus and a medium voltage inverter system using the same. The medium voltage inverter control apparatus determines input voltage information by receiving an input voltage of a medium voltage inverter, compares an output command of the medium voltage inverter with an output of a first PLL unit to output a difference therebetween, and synchronizes the output command of the medium voltage inverter using the difference.
A DC/DC converter for providing an output voltage includes: a connected DC voltage transformer; a supply voltage input for providing a first supply potential and a second supply potential to the DC voltage transformer; a potential point which is connectable to the second supply potential as a function of an activation state of the DC voltage transformer; an output capacitor which is connected to an output connection and to the potential point, and which is chargeable to the output voltage by activating the DC voltage transformer, and at which an output potential is tappable. The output voltage is provided between the output potential and the second supply potential.
Controller for a switched mode power supply
A controller for a switched mode power supply, the switched mode power supply comprising one or more windings. The controller comprising a fixed speed timer; a threshold setter configured to set a threshold for the timer in accordance with a peak value of a current through one of the one or more windings; a secondary stroke detector configured to start the fixed speed timer upon detection of the start of a secondary stroke of the switched mode power supply; a sampler configured to sample a voltage across one of the one or more windings when a count of the fixed speed timer reaches the threshold.
A DC-DC converter in which a primary side and a secondary side are insulated by a transformer, includes: two diodes having anodes respectively connected to both ends of a secondary winding of the transformer and cathodes connected to each other; a series circuit composed of a resistor and a capacitor connected in series; and a snubber circuit formed by connecting the cathodes of the diodes to the connection point between the resistor and the capacitor. Surge voltage caused on the secondary side of the transformer is clamped at the voltage of the capacitor, and surge energy stored in the capacitor is regenerated to a load via the resistor. Thus, surge voltage caused on the secondary side of the transformer is suppressed with a simple configuration, and effective use of surge energy is ensured.
Maximum power point tracking method and apparatus
A maximum power point tracking (MPPT) apparatus and a MPPT method are disclosed. A converter uses an inductor therein to perform power conversion operations according to a gating signal so as to convert an input electrical energy into an output electrical energy to a load. A controller monitors the voltage difference of the inductor and the element temperature, performs a lookup table operation or calculates the element characteristic according to the element temperature, and further uses the element characteristic and the voltage difference of the inductor for calculating a characteristic value and correspondingly adjusts the gating signal according to the characteristic value so as to track the power of the input electrical energy.
Voltage converter having auxiliary switch implemented therein and related voltage converting method thereof
A voltage converter has an input terminal and only N output terminals, and includes a DC-DC power supply block having an input node and an output node, (N+1) switches including N main output switches and an auxiliary switch each having a first end and a second end, and a switch control circuit. The DC-DC power supply block includes an inductor, and a switch module configured for alternating between a first interconnection configuration and a second interconnection configuration during a predetermined time period. First ends of the (N+1) switches are coupled to the output node, and second ends of the N main output switches are coupled to the N output terminals, respectively. The switch control circuit is configured for controlling the switch module and the (N+1) switches, wherein the (N+1) switches are switched on alternately during the predetermined time period.
Inductor current detection circuit and LED driver
The present invention pertains to an inductor current detection circuit in a switching mode power supply, and a light-emitting diode (LED) driver thereof. In one embodiment, an inductor current detection circuit configured in a switching mode power supply under discontinuous conduction mode, can include: (i) a voltage detection circuit configured to generate a sampling voltage based on a drain-source voltage of a power switch in the switching mode power supply; (ii) a voltage holding circuit configured to receive the sampling voltage, and to generate a holding voltage through a sampling and holding operation; and (iii) a comparison circuit configured to compare the sampling voltage against the holding voltage, and to generate a zero-crossing signal when the sampling voltage is less than the holding voltage, where the zero-crossing signal is configured to represent an inductor current ending time of the switching mode power supply.
Method and apparatus for controlling TRIAC dimmable device
Aspects of the disclosure provide a method that including receiving a sensed signal corresponding to a current flowing through an energy transfer module in response to an on/off state of a forward-type triode for alternating current (TRIAC), determining the TRIAC on/off state based on the sensed signal, and controlling the energy transfer module based on the determined TRIAC on/off state.
Reconfigurable power converter module
Embodiments provide a reconfigurable power converter module for a wind turbine facility adapted to supply electric power to an associated power supply grid. The reconfigurable power converter module includes a frequency converter operatively connected to filter means, wherein the frequency converter and the filter means are mutually reconfigurable so as to suppress internal and/or external resonances or harmonics.
AC/DC multicell power converter for dual terminal HVDC connection
It is presented a power converter for converting power between a first high voltage direct current, DC, connection, a second high voltage DC connection and a high voltage alternating current, AC, connection. The power converter comprises: a first phase arrangement comprising a first converter arm, a second converter arm, a third converter arm, a fourth converter arm, a fifth converter arm and a sixth converter arm. The first, second third and fourth converter arms are serially connected in the mentioned order between two terminals of the first high voltage DC connection. The high voltage AC connection is connected between the second converter arm and the third converter arm.
Efficiency optimized power converter with dual voltage power factor correction
A dual voltage power conversion system with power factor correction (PFC) having a capabilities to adjust a PFC setpoint according to operating conditions. The input signaling levels, for example, may be monitored and used to control adjustments to the PFC setpoint in order to allow the PFC setpoint to dynamically change with any input variation. The PFC setpoint may be adjusted to a PFC setpoint resulting in maximum efficiency.
Switching module for use in a device to limit and/or break the current of a power transmission or distribution line
A switching module, intended to be used in a medium or high voltage DC breaker or a DC current limiter, includes at least one power semiconductor switching element, a gate unit arranged to turn the at least one power semiconductor switching element on and off, respectively, according to a switching control signal, and an energy storage capacitor arranged to provide power to a power supply input of the gate unit. The switching module further includes a power transformation device arranged to receive an optical power signal, to transform the optical power signal into an electrical power signal and to provide the electrical power signal to the energy storage capacitor.
Control circuits for power converters
A control circuit for controlling one or more power switches of a power converter includes a voltage control loop and a current control loop. The control circuit is configured to generate a current reference for the current control loop using the voltage control loop and an AC reference signal. The control circuit is configured to operate in at least a first mode in which a parameter of the voltage control loop is sampled only at every other zero crossing of the AC reference signal and the sampled parameter is used to generate the current reference for the current control loop. The power converter may be an AC-DC converter or a DC-AC converter (i.e., inverter). Alternatively, the voltage control loop may be sampled at every zero crossing of the AC reference signal, and/or more frequently during transient load conditions.
An inverter device including a plurality of switching elements that convert electric power between DC power and AC power, a base plate that includes a surface on which the switching elements are placed, AC terminals through which AC power is input and output to and from an external device and which are electrically connected to the switching elements, and a capacitor that smoothes DC power. The AC terminals are disposed to protrude from the base plate perpendicular to the surface in a first reference direction. The capacitor is disposed in a rectangular area so that long sides of the rectangle are parallel to the first reference direction in plan view, and is set adjacent to a base disposition area, in which the base plate and the AC terminals are disposed in a second reference direction that is a direction perpendicular to the first reference direction.
Fixing structure for electrical component
A fixing structure for an electrical component includes a heat removing member for removing heat from the electrical component. The heat removing member has a receiving portion for receiving the electrical component. The fixing structure for an electrical component further includes a separation member that is coupled to the electrical component to separate the electrical component from the heat removing member. The separation member is coupled to the heat removing member. The fixing structure for an electrical component includes a soft material member that is accommodated in the receiving portion to contact the receiving portion and the electrical component. Heat of the electrical component is transmitted to the heat removing member via the soft material member.
Stator core slot and pole piece arrangement for stator structure of a rotary electric machine
A stator structure for a rotary electric machine includes a stator core having a cylindrical shape in which slots and pole pieces are formed on an inner peripheral side and alternately arranged in a circumferential direction, a conductor segment which is a conducting wire having a rectangular cross section inserted in one of the slots through an insulator being connected with a conductor segment similarly inserted in another slot to form a coil. Each insulator has a shape including a pair of opposite side surface portions connected with an intermediate portion along a wall surface defining the slot. Each insulator includes end protrusions facing each other at free ends of the side surface portions to position the conductor segments. The insulators are made of an insulating and elastic material.
Belt conveyor and electromagnetic drive
A belt conveyor having an electromagnetic drive comprising a rotor and a stator sealed in separate nonmagnetic and nonconductive housings. The rotor is mounted to a drive shaft. A drive drum or drive sprockets supported on the shaft have peripheral drive surfaces that engage a conveyor belt. The rotor is coaxial with the peripheral drive surface—either sealed within the drum or sprockets or housed on the shaft axially spaced from the drive surface. The rotor may include conductive rotor bars or permanent magnets. The stator is spaced apart from the rotor across a narrow gap and produces a traveling magnetic flux wave across the gap that causes the rotor and the peripheral drive surface to rotate and drive the conveyor belt.
Magnetic levitation type vacuum pump and magnetic levitation device
A magnetic levitation type vacuum pump includes an electromagnet magnetically levitating a rotor by a magnetic force, an electromagnet driving circuit supplying an electromagnet current including a magnetic levitation control current component and a carrier wave current component having a frequency band higher than the magnetic levitation control current component to the electromagnet coil, a levitated position detecting circuit detecting the carrier wave current component and generating a levitated position signal of the rotor, a magnetic levitation control circuit inputting a current command of the magnetic levitation control current component to the electromagnet driving circuit based on the levitated position signal. The electromagnet coil has a primary coil and a secondary coil connected in parallel with the primary coil. An interrupting circuit connected in series with the secondary coil for the carrier wave current component passing therethrough and interrupting the magnetic levitation control current component is further included.
Spindle motor with bearing holder having a bottom interior step
In addition to a bearing holder being provided with an annular groove that opens down in the axial direction, an end cap is provided with an annular projection that extends up in the axial direction, and by way of press-fitting the projection into the groove, the fitted portion of the bearing holder and the end cap is forms an axially convex labyrinthine shape extending along the entire perimeter.
Oxide superconducting coil, oxide-superconducting-coil assembly, and rotating machine
The invention offers a superconducting coil, which is an oxide superconducting coil 10 that has the shape of a saddle formed by winding an oxide superconducting wire 11 in the shape of a racetrack and that has a curved portion 10b and a linear portion 10a connected to the curved portion 10b. At least in the central portion of the linear portion 10a, an upper end 10d is positioned at the inner-circumference side in comparison with a lower end 10e. Having the foregoing configuration, the superconducting coil formed of an oxide super-conducting wire can suppress the reduction in its electrical property caused by the lines of magnetic flux when used in a rotating machine such as a motor. The invention also offers a superconducting-coil assembly formed by using the foregoing superconducting coils and a rotating machine incorporating the foregoing superconducting coil (superconducting-coil assembly).
System and method for performing harmonic frequency filtration and analysis
A system for filtering harmonic frequency distortion in AC power distribution system is disclosed. The system comprises a filter configured to filter harmonic frequency from the AC power, an input sensor configured to acquire harmonic frequency level of the input AC power before filtration, an output sensor configured to acquire harmonic frequency level of the output AC power after filtration, and an interfacing module connected to the input and output sensor for acquiring signals of the harmonic frequency level of the input and output AC power measured by the input and output sensors, respectively. The interfacing module is further configured to process the acquired signals into computer readable data. The computer readable data can be accessed through remote server via IP-based communication network. A method for filtering harmonic frequency distortion of AC power and measuring power quality of the AC power is also disclosed.
Wireless power feeding system
A wireless power feeding system includes a power feeding device and a power receiving device. The power feeding device includes a first resonance coil connected to a high-frequency power source through a first matching circuit, and a first control circuit connected to the first matching circuit and a first transmitter-receiver circuit. The power receiving device includes a second resonance coil configured to be in magnetic resonance with the first resonance coil, and a second control circuit connected to a load, a second matching circuit, and a second transmitter-receiver circuit.
Dual fuel system and method of supplying power to loads of a drilling rig
A system for providing power to a load of a drilling rig has a dual fuel engine/generator and an energy storage system. The load is switchably connected to one or both of the dual fuel engine/generator and the energy storage system. The dual fuel engine/generator and the energy storage system have a capacity suitable for supplying requisite power to the load. A rectifier is connected to an output line of the engine/generator so as to convert the AC power to DC power. The energy storage system is a battery. The dual fuel engine/generator can be either a dedicated duel fuel system or a fumigation system.
Photovoltaic system having power-increment-aided incremental-conductance maximum power point tracking controller using variable-frequency and constant-duty control and method thereof
The configurations of photovoltaic system and methods thereof are provided. The proposed photovoltaic system includes a PI-INC MPPT controller using a variable-frequency constant-duty (VFCD) control and guided by an Ipv-Vpv curve and a Ppv-Vpv curve.
Recharging energy storage cells using capacitive storage device
A handheld device includes a capacitive storage device and energy storage cells. The capacitive storage device can be rapidly charged. The energy from the capacitive storage device is used to recharge the energy storage cells over a longer period of time.
Method and apparatus for preventing misoperation in an electric power system
One embodiment provides a computer system for preventing switching errors in a power system that includes a plurality of switching devices. The system includes a topology-extraction mechanism configured to extract topology information associated with the power system; a status database configured to store status information associated with the switching devices; a rule database configured to store user-definable operation rules associated with the switching devices; a receiving mechanism configured to receive a request for performing a switching operation on a device; a simulation mechanism configured to perform a simulation based on the extracted topology information, the status information, and a rule associated with the device; a determination mechanism configured to determine whether the switching operation is allowed based on an outcome of the simulation; and a display mechanism configured to display an output of the determination mechanism.
Inductively powered mobile sensor system
The present invention provides an inductively powered sensor system having a primary conductive path capable of being energized to provide an electromagnetic field in a defined space. An inductive power pick-up is associated with a sensor and is capable of receiving power from the field to supply the sensor. The system includes a first sensing unit to sense the power available to the pick-up and a control unit to increase or decrease the power available to the sensor dependant on the sensed power available. A method of inductively powering a sensor, an inductively powered sensor and an animal enclosure including one or more primary conductive path of an inductive power supply are also disclosed.
A charging system includes a charging cap having a cradle with first and second electrodes; and a rechargeable unit including a charging end having third and fourth electrodes arranged for engagement by the first and second electrode of the charging cap when the rechargeable unit is received in the charging cap and thereby provide electrical contact to enable charging of the rechargeable unit. At least one recess in the rechargeable unit is arranged to receive one or more clamping members of the charging cap for releasably securing the rechargeable unit to the charging cap.
Systems and methods for evaluating and controlling a battery system
Systems and methods for estimating the relative capacity of individual battery subdivisions in a battery system are presented. In some embodiments, a system may include calculation system configured to analyze the electrical parameters to generate derivative values of the parameters over a period of time. The calculation system may further calculate summation values associated with individual battery subdivisions based upon the derivate values. A battery control system may utilize the summation values to generate one or more commands configured to control an aspect of an operation of the battery pack based on using the summation values. The summation values associated with battery subdivisions may be used to determine a relative capacity for storing electrical energy, according to some embodiments. The determination of relative capacity may be used by a control system to prevent over-discharge of a battery subdivision having the lowest energy storage capacity.
Battery backup system for uninterrupted power supply
Methods and systems supply uninterrupted power to a load using a backup battery module. A driver circuit connects the load and the backup battery module such that the operational range of the load voltage is narrower than the operational range of the battery voltage. Different charging and discharging paths of the driver circuit may be used to limit the DC bus voltage to values lower than the battery voltage. The proposed systems and methods can increase power efficiency and decrease the cost of power supply and conversion operations.
Over-voltage protection device for resonant wireless power transmission device and method for controlling the over-voltage protection device
Provided is an over-voltage protection device for a resonant wireless power transmission device. The over-voltage protection device includes an amplifier for amplifying a transmission signal, a resonance signal generator for generating a wireless resonance signal according to the transmission signal amplified by the amplifier, a voltage detector for sensing a voltage of the wireless resonance signal generated by the resonance signal generator, and a controller for monitoring the voltage detected by the voltage detector to determine whether the voltage repetitively increases and decreases with periodicity when the voltage is greater than a reference voltage and controlling the amplifier to decrease an output of the transmission device by a value according to a result of the determination.
Method for compensating overload trip curve for CT error
A digital thermal model for compensating for error in a current transformer used in a solid-state overload relay. The thermal model implements a difference equation that determines using a low-pass filter two parameters corresponding to calibration points along an overload trip curve. The trip curve is adjusted at an ultimate trip current (one calibration point) independently of a trip time at a locked rotor current (another calibration point) of a motor protected by the overload relay. The ultimate trip current and trip time can be adjusted based on a motor full load current set by a user. Large CT error will cause the thermal model to adjust the trip time at the locked rotor current, increasing the range of acceptable CT error, allowing the overload relay to have a wider adjustment range.
Reduction of inrush current due to voltage sags by an isolating current limiter
Various systems and methods are provided for minimizing an inrush current to a load after a voltage sag in a power voltage. In one embodiment, a method is provided comprising the steps of applying a power voltage to a load, and detecting a sag in the power voltage during steady-state operation of the load. The method includes the steps of adding an impedance to the load upon detection of the sag in the power voltage, and removing the impedance from the load when the power voltage has reached a predefined point in the power voltage cycle after the power voltage has returned to a nominal voltage.
Multi-wavelength VCSEL array to reduce speckle
Embodiments of the invention describe an illuminator having a light source to originate an illumination beam, wherein the light source further comprises a set of vertical-cavity surface emitting lasers (VCSELs), including a first VCSEL having a first laser emission wavelength, and a second VCSEL having a second laser emission wavelength different than the first laser emission wavelength. Thus, by varying laser emission wavelengths of VCSELs in a VCSEL array, embodiments of the invention produce low-contrast speckle, and do not limit the imaging capabilities of the host illumination system. In some embodiments of the invention, vertical external cavity surface emitting lasers (VECSELs) are utilized to produce the above described varying laser emission wavelengths.
Semiconductor laser element
A semiconductor laser element includes: a light emitting layer of a nitride semiconductor that is placed above a substrate of GaN and has a refractive index higher than the substrate, wherein the semiconductor laser element further includes the following layers between the substrate and the light emitting layer in an order from the substrate: a first nitride semiconductor layer of AlGaN; a second nitride semiconductor layer of AlGaN having an Al ratio higher than the first nitride semiconductor layer; a third nitride semiconductor layer of an InGaN; and a fourth nitride semiconductor layer of AlGaN having an Al ratio higher than the first nitride semiconductor layer and having a thickness greater than the second nitride semiconductor layer.
Wavelength monitor, wavelength lockable laser diode and method for locking emission wavelength of laser diode
A wavelength monitor monolithically integrated with a tunable LD is disclosed. The wavelength monitor includes at least two filters, each filter having a different periodic transmission spectrum. A transmittance of the first filter, and another transmittance of the second filter at a grid wavelength attributed to a WDM system forms a combination which is specific to the grid wavelength but different from other combinations at other grid wavelengths.
Optical amplifier and optical amplifying method
There is provided an optical amplifier including a diffusing unit configured to be driven by a first current density and to increase a beam diameter of an incident laser beam that passes through a first waveguide that guides the laser beam, and an amplifying unit configured to be driven by a second current density that is higher than the first current density and to amplify intensity of the laser beam that passes through a second waveguide that guides the laser beam whose beam diameter has been increased by the diffusing unit. The first waveguide of the diffusing unit has a tapered shape in which a cross-sectional area of the first waveguide is gradually increased toward a travelling direction of the laser beam.
Photonic crystal surface-emitting lasers
A photonic-crystal surface-emitting laser (PCSEL) includes a gain medium electromagnetically coupled to a photonic crystal whose energy band structure exhibits a Dirac cone of linear dispersion at the center of the photonic crystal's Brillouin zone. This Dirac cone's vertex is called a Dirac point; because it is at the Brillouin zone center, it is called an accidental Dirac point. Tuning the photonic crystal's band structure (e.g., by changing the photonic crystal's dimensions or refractive index) to exhibit an accidental Dirac point increases the photonic crystal's mode spacing by orders of magnitudes and reduces or eliminates the photonic crystal's distributed in-plane feedback. Thus, the photonic crystal can act as a resonator that supports single-mode output from the PCSEL over a larger area than is possible with conventional PCSELs, which have quadratic band edge dispersion. Because output power generally scales with output area, this increase in output area results in higher possible output powers.
Systems and methods to more accurately estimate a fluorine concentration in a source laser
In master oscillator-power amplifier (MOPA) systems for generating laser light, a fluorine concentration in each of the master oscillator and power amplifier chambers is maintained. While sensors at the chambers can measure certain values of some variables, the sensors do not directly measure fluorine concentration. As a further complication, the values received from the sensors are known to be affected by various specified variables. To estimate the effect on the received values, an RLS algorithm and covariance matrix are used. To ensure that the RLS algorithm is responsive to recent changes in a specified variable, portions of the covariance matrix are reset to more quickly and more heavily weight the more recent values.
Structured double-sheath fiber
The invention relates to a double-sheath fiber having a core region (1) and a sheath region, the sheath region having an inner region (2) and an outer region (3), which comprises a refractive index that is lower with respect to that of the inner region (2) and the core region (1), wherein the outer region (3) surrounds the inner region (2). The invention proposes an internal structure (4) of the inner region (2) which effects a spatial overlap of modes of higher order with the core region (1), which is lower than the spatial overlap of a fundamental mode with the core region (1).
Actuation device for a laser diode, laser projection system and method for speckle reduction in a laser diode
An actuation device for a laser diode includes: a first driver device which is set up to generate a high-frequency modulated actuation signal and to feed the signal into the laser diode for speckle suppression, and an evaluation circuit, which is coupled with the first driver device, and which is set up to output to the first driver device an intensity signal indicating the intensity of the light emitted by the laser diode and a control signal as a function of the intensity signal in order to regulate the high-frequency modulated actuation signal.
High-brightness spatial-multiplexed multi-emitter pump with tilted collimated beam
Multi-mode diode emitters are stacked in a staircase formation to provide a spatially-multiplexed output. Improved coupling efficiency is achieved by providing tilted collimated output beams that determine an effective step height of the stepped structure. Since the effective step height is dependent on the tilt angle, a variable number of emitters can be used inside packages having a same physical step height, while still attaining high coupling efficiency.
Terminal connection structure and method of manufacturing the same
A wire crimping section (11) of a terminal (10) comprises a base section (13) upon which a conductor (1) of a wire (W) is arranged; and a pair of caulking sections (14) that is formed in extension from the base section (13), and that is caulked so as to crimp the conductor (1). A friction-agitation connection section (20), which is formed by making the conductor (1), the base section (13), and the pair of caulking sections (14) into a state of integrated plastic flow, is provided on the wire crimping section (11).
Commutator having conductive rings
A commutator includes a substantially tubular insulating core, a first slip ring fixed to the core, a plurality of first bars electrically connected to the first slip ring, a second slip ring fixed to the core, and a plurality of second bars electrically connected to the second slip ring. The first bars and the second bars are fixed to the outer surface of the core and are alternately arranged at equally spaced intervals in the circumferential direction of the core. The first slip ring and the second slip ring are arranged on the same side of the first bars and the second bars. The first and second slip rings respectively comprise a contact surface that is substantially perpendicular to the axis of the commutator and is configured for contacting brushes.
High performance cable connector
A cable connector with improved performance and ease of use. The connector has staggered ports to reduce crosstalk and to prevent incorrect insertion of a plug into a receptacle. The plug may be constructed with subassemblies, each of which has a lossy central portion. Conductive members embedded within an insulative housing of the subassemblies may be used to electrically connect ground conductors within the subassemblies. Further, the connector may have a quick connect locking screw that can be engaged by pressing on the screw, but requires rotation of the screw to remove. Additionally, a ferrule may be used in making a mechanical connection between a cable bundle and a plug and making an electrical connection between a braid of the cable bundle and a conductive shell of the plug. The ferrule may be in multiple pieces for easy attachment while precluding deformation of the cable, which disrupts electrical performance.
An electrical connector (100) includes an insulative housing (1) with a plurality of contacts (11) received therein, a plurality of soldering members (12) connect the contacts (11) and protrude beyond the bottom of the insulative housing (1), and a position member (2) surrounds the insulative housing (1) and moves downwardly relative to the insulative housing (1), the insulative housing (1) includes an upper block (1010) and a lower block (1021) protruded outwardly, the position member (2) includes a body portion (20) and a soldering portion (21), the upper block (1010) locates under the body portion (20) and the lower block (1021) locates on the upper side of the body portion (20), when the soldering members (12) and the soldering portion (21) are put in a same plane, there is a space between the body portion (20) and the lower block (1021).
Making contact in a force-optimized manner between electrical loads and printed circuit boards
A contact adapter for making contact in a force-optimized manner between an electrical load and a printed circuit board includes an electrically conductive contact element and an electrically non-conductive support structure. The electrically conductive contact element is configured to make an electrical contact between the printed circuit board and the electrical load. The support structure has a first supporting surface, which is configured to bear against a carrier plate of the printed circuit board. In this case, the contact element is integrated into the support structure in such a way that a first force exerted on the contact element by the electrical load is transferable to the carrier plate of the printed circuit board via the first supporting surface.
High speed RJ45 connector having magnetic module
An electrical connector including a housing, a plurality of contacts fastened in the housing for mating with a plug, a plurality of terminals for connecting an electrical device, and a magnetic module electrically connecting the contacts and the terminals to form a number of signal channels carrying differential signal pairs. The magnetic module has a printed circuit board (PCB) and a transformer mounted thereon. The transformer is connected in one of the signal channels and comprises an H-shaped magnetic core, a magnetic board a primary coil having a first magnetic wire and a second magnetic wire, and a secondary coil having a third magnetic wire and a fourth magnetic wire. The wires have specific parameters to suit specific needs.
Electrical connector having a plurality of absorbing material blocks
An electrical connector electrically connecting a chip module to a printed circuit board includes an insulative housing including a number of receiving slots and a number of passageways spaced with the receiving slot and located beside the receiving slot and a number of terminals each received in the receiving slot of the insulative housing, the electrical connector further includes a number of absorbing material blocks received in the passageways, the passageway has an inner surface coated with an metal layer and the absorbing material block is located inside the metal layer.
Electrical connector having common ground shield
An electrical connector assembly includes a first electrical connector and a second electrical connector that can be mated so as to establish an electrical connection across the electrical connectors at a mating region. One of the electrical connectors includes a perforated common ground shield at the mating region that reduces crosstalk while substantially matching impedance at the mating region to a desired impedance of the electrical connector assembly.
Electrical connector having a ground contact with a solder portion and a pair of grounding contact portions
An electrical connector including a housing having a mating connector receiving passageway. A pair of first differential signal contacts have solder portions and first contact portions positioned in the mating connector receiving passageway. A first ground contact faces the pair of first differential signal contacts. The first ground contact has a solder portion and a pair of first grounding contact portions spaced apart from each other by a gap and positioned in the mating connector receiving passageway. The pair of first grounding contact portions face the first contact portions of the pair of first differential signal contacts.
Electrical connector for transmitting data signals
Electrical connector including a connector body having a pathway assembly extending between mating and mounting faces of the connector body. The pathway assembly includes a signal conductor having separate conductor segments and a dielectric body that holds the conductor segments of the signal conductor. The conductor segments have respective interior ends that are positioned adjacent to each other with a signal gap therebetween. The pathway assembly also includes a signal-control component that electrically joins the conductor segments and is configured to modify current flowing through the conductor segments. The dielectric body forms an open channel having at least one of the conductor segments disposed therein. The at least one conductor segment has an exposed surface that interfaces with an air gap in the connector body.
Connector architecture and insertion profile
Connector inserts and receptacles that provide a clear response to a user when a connector insert is properly inserted into a connector receptacle. One example may provide a connector system that provides a tactile response to a user when a connector insert is properly inserted into a connector receptacle. In other examples, the response provided to the user may be audible as well. The insertion of the connector insert into the connector receptacle may follow a force profile that includes an insertion profile defined by a substantially monotonically increasing resistance force from the beginning of insertion until an insertion peak is reached, followed by a click-through event leading to a final mating position.
This lever-type connector (1) having: a first connector (11); a second connector (21); and a lever (31) that fits the connectors (11, 21) together by being rotated. The first connector (11) has an engagement lock part (14) that is inserted through an attachment hole (52) by being bent and deformed toward the inner surface side at the time of attaching the first connector to the attachment hole (52). The lever (31) has an arm part (32) that is located on the inner surface side of the first connector (11) during the rotation of the lever (31). The arm part (32) has: a deformation permitting part (37) that permits the bending deformation thereof when the lever (31) is at a rotation position where the connectors (11, 21) are in a half-fitted state; and a deformation preventing part (36) that prevents the bending deformation thereof.
Apparatuses and methods for securing a connection of an electrical connection assembly
A shim for securing an electrical connection of an electrical connection assembly. The shim includes a cylindrical sleeve with opposite proximal and distal ends. The cylindrical sleeve runs from a proximal end of the shim to a distal end of the shim. An interior portion of the cylindrical sleeve is defined by an opening from the proximal end of the shim to the distal end of the shim. The opening allows a plug of the electrical connector assembly to be inserted within the opening of the cylindrical sleeve while the shim is inserted into a socket of the electrical connector assembly to hold the plug securely in the socket of the electrical connection assembly.
Electrical connector modules for wellbore devices and related assemblies
An electrical connector module is for completing an electrical connection in a wellbore device. The module has an outer surface having at least one groove that receives and frictionally retains an electrical wire in a circuitous path that relieves strain on the wire. An electrical connector is at least partially disposed in the at least one groove and is connected to the electrical wire.
Connector with entrance restricting portions in a receptacle to prevent damage to tabs in the receptacle
Entrance restricting portions (30, 31, 32) project in a receptacle (100) and are arranged in a width direction at each of opposite sides of a plurality of tabs (20, 21) in a height direction. Drop-in spaces (3A-3E) are formed at an inner side of the entrance restricting portions (30, 31) and (32) adjacently arranged at the substantially opposite sides of the tabs (20, 21). When a spherical surface of a spherical body (201) inserted into the receptacle (10) contacts the front ends of a plurality of entrance restricting portions (30, 31, 32), a top (202) on a central axis of the spherical body (201) is offset from the tabs (20, 21).
Compression method for electric wire and electric wire with terminal obtained thereby
An electric wire with terminal is provided to include: an inner terminal including a crimp part that is crimped to compress a conductor part of a covered electric wire; an outer terminal that is compressed to the inner terminal by a front part thereof and is compressed to the covered electric wire by a rear part thereof; and a waterproof seal sleeve that is attached to a tip of the conductor part of the covered electric wire, wherein the seal sleeve is crimped by the crimp part of the inner terminal.
The invention relates to an electrical connection having at least one plug contact element (10) and a connection wire (1) which is connected to the plug contact element (10), wherein the connection between the at least one plug contact element (10) and the connection wire (1) is established by means of at least one force-fitting connection (12, 13) which is in the form, in particular, of a crimped connection. According to the invention, provision is made for the force-fitting connection (13) to additionally be provided with a cohesive connection (15) or a soldered connection.
N-port feeding system having a structure in which patterns are divided with in parallel and feeding element included in the same
A feeding system is provided, and it supplies a power using conductive patterns divided into pattern groups, e.g. patterns having U shape. The feeding system includes a first substrate, first patterns disposed on the first substrate, second patterns disposed on the first substrate, and connected electrically in parallel to the first patterns, a second substrate spaced from the first substrate, at least one third pattern disposed on the second substrate, and configured to correspond to the first patterns and one or more fourth pattern disposed on the second substrate, and configured to correspond to the second patterns. Here, the third pattern connects electrically corresponding first patterns, and the fourth pattern connects electrically corresponding second patterns.
Leaky coaxial cable
A leaky coaxial cable includes: a central conductor; an insulator configured to cover the central conductor; an external conductor wound around the insulator, having a thickness of 5 μm to 44 μm, and including multiple slots formed periodically in a longitudinal direction of the cable; a plastic film attached to the external conductor, and having a thickness of 5 μm to 36 μm; and an outer sheath configured to cover the external conductor and the plastic film, as well as characterized in that the plastic film is attached to a surface of the external conductor facing the outer sheath.
Device for receiving and/or emitting an electromagnetic wave, system comprising said device, and use of such device
A device for receiving and/or emitting an electromagnetic wave having a free space wavelength λ0 comprised between 1 mm and 10 cm, comprising a medium (11) of solid dielectric material and the free space wavelength λ0 corresponding to a wavelength λ inside the medium, a plurality of conductor elements (12) incorporated inside the medium and spaced apart from each other of a distance lower than λ/10, and one antenna element (13). The conductor elements form small loop elements. A tuned conductor element among the conductor elements has a first end at a distance from the antenna element which is lower than λ/10, and has an electric resonance frequency corresponding to the wavelength λ.
Electrical conductive member and electrical conductive member assembly
An electrical conductive member is provided with a base layer and a conductor. The base layer includes a first portion, a second portion extending at an angle relative to the first portion, and a curved portion connecting the first portion and the second portion. The conductor is arranged on a portion of the base layer.
Mounting hub for antenna
An antenna hub for a reflector dish has a frame with a feed aperture. A plurality of feet are coupled to the frame; each of the feet provided with a dish fastener coupling axis normal to a dish surface contacting each of the feet when the reflector dish is seated upon the feet, the feed bore of the reflector dish aligned coaxial with the feed aperture. The frame and feet may be formed via extrusion.
Communication device comprising an external control with an embedded antenna assembly
Systems (300) and methods (900) for packaging an antenna (702) in a communication device (300). The methods involve coupling the antenna to a Printed Circuit Board (“PCB”) such that the antenna is mechanically supported thereby. A hollow shaft (510) of a control knob (304) is positioned over the antenna and at least a portion of PCB (706) such that the antenna is embedded within the control knob. Thereafter, the control knob is mechanically secured to a housing (308) of the communication device. The control knob is arranged such that it can move in a radial direction and a vertical direction (516) relative to the chassis. The control knob is also arranged such that the hollow shaft is able to move freely over the antenna without coming in contact therewith.
High frequency magnetic field antenna
An antenna system including a loop antenna including a conductor; and a magnetic gain element positioned in an aperture defined by the loop antenna, the magnetic gain element including a magnetic material that has a relative permeability greater than one for an operating frequency range, the magnetic gain element configured to increase a magnetic flux density associated with a received magnetic-field component of an incident electromagnetic wave wherein a loop output voltage induced in the loop antenna is based, at least in part, on the increased magnetic flux density.
In-phase H-plane waveguide T-junction with E-plane septum
In an example embodiment, an in-phase H-plane T-junction can comprise: a first waveguide port; a second waveguide port; a third waveguide port, wherein the third waveguide port can be a common port; and an E-plane septum. The first, second, and third waveguide ports can be in the H-plane and can be each connected to each other in a T configuration. The T-junction can be configured such that microwave signals in a first band can be in-phase with each other at the first and second waveguide ports, and microwave signals in a second band can be in-phase with each other at the first and second waveguide ports. The H-plane T-junction can be at least one of a power combiner and a power divider.
Radiant heat plate for battery cell module and battery cell module having the same
Disclosed is a radiant heat plate and a battery cell module having the same. The radiant heat plate is interposed between battery cells. The radiant heat plate includes a high-thermal conductivity plate with excellent thermal conductivity and a composite sheet fixedly laminated on both surfaces of the high-thermal conductivity plate. Here, the composite sheet is formed of a thermoplastic elastomer composite filled with a high-thermal conductivity filler.
Corrugated fin and frame assembly for battery cooling
A cooling module for a battery pack assembly is disclosed. The cooling module includes a frame having a plurality of legs forming an opening through a central portion of the frame, at least one of the plurality of legs including a slot formed therethrough. A cooling fin is coupled to the frame. The cooling fin includes a corrugated plate interposed between a first plate and a second plate forming a plurality of fluid flow channels between the first plate and the second plate. The cooling modules are disposed in a stack having at least one battery cell disposed between adjacent cooling modules. The battery cell is in heat transfer communication with the cooling fin of at least one cooling module, wherein the cooling fin facilitates a transfer of heat energy between the battery cell and the flow channels formed in the cooling fin.
Secondary battery with an improved safety
A secondary battery comprising a battery package which encloses the outer perimeter of the secondary battery and covers the entire outer surface of positive and negative electrodes and a portion of each terminal of the positive and negative electrodes, wherein the battery package is formed of a laminate film comprising an outer polymer layer, an inner aluminum layer and an adhesive layer formed on a portion of the inner surface of the aluminum layer, the aluminum layer of the battery package being electrically connected with either of the positive and negative is provided. Alternatively, at least one electrically conductive metal foil on at least one of the outer upper and lower surfaces of the battery package is provided.
Lithium anodes for electrochemical cells
Provided is an anode for use in electrochemical cells, wherein the anode active layer has a first layer comprising lithium metal and a multi-layer structure comprising single ion conducting layers and polymer layers in contact with the first layer comprising lithium metal or in contact with an intermediate protective layer, such as a temporary protective metal layer, on the surface of the lithium-containing first layer. Another aspect of the invention provides an anode active layer formed by the in-situ deposition of lithium vapor and a reactive gas. The anodes of the current invention are particularly useful in electrochemical cells comprising sulfur-containing cathode active materials, such as elemental sulfur.
Electrode for secondary battery, preparation thereof, and secondary battery and cable-type secondary battery comprising the same
A sheet-form electrode for a secondary battery, includes a current collector; an electrode active material layer formed on one surface of the current collector; a conductive layer formed on the electrode active material layer and including a conductive material and a binder; and a first porous supporting layer formed on the conductive layer. The sheet-form electrode for a secondary battery has supporting layers on at least one surfaces thereof to exhibit surprisingly improved flexibility and prevent the release of the electrode active material layer from a current collector even if intense external forces are applied to the electrode, thereby preventing the decrease of battery capacity and improving the cycle life characteristic of the battery.
Fuel cell electrodes
A process includes patterning a surface of a platinum group metal-based electrode by contacting the electrode with an adsorbate to form a patterned platinum group metal-based electrode including platinum group metal sites blocked with adsorbate molecules and platinum group metal sites which are not blocked.
Boron-doped diamond coated catalyst support
A catalyst support for an electrochemical system includes a high surface area refractory material core structure and boron-doped diamond. The BDD modifies the high surface area refractory material core structure.
Positive electrode for rechargeable lithium battery, method of preparing the same, and rechargeable lithium battery including the same
Provided is a positive electrode for a rechargeable lithium battery including a positive active material including a lithium phosphate compound particle and fiber-type carbon attached inside the lithium phosphate compound particle, a method of preparing the same, and a rechargeable lithium battery including the same.
Cathode active material for secondary battery and lithium secondary battery including the same
Disclosed is lithium iron phosphate having an olivine crystal structure, wherein the length in the direction  is greater than the length in the direction  when the Li+ diffusion direction is the direction  in the lattice structure of the crystal.
Cathode for an electrochemical cell
The invention provides a cathode for an electrochemical cell comprising: a first particulate material having particles comprising a mixture of at least one alkali metal halide and at least one metal; and a second particulate material comprising at least one alkali metal halide, wherein the second particulate material has a particle size smaller than that of the first particulate material.
Lithium ion batteries using discrete carbon nanotubes, methods for production thereof and products obtained therefrom
Compositions, and methods of obtaining them, useful for lithium ion batteries comprising discrete oxidized carbon nanotubes having attached to their surface lithium ion active materials in the form of nanometer sized crystals or layers. The composition can further comprise graphene or oxygenated graphene.
Battery pack and method for welding cells
A battery pack with a reduced resistance connection arrangement in which battery cells are arranged in rows in an insulating case and an electrode of each battery cell is coupled to an electrode of another battery cell through a connecting metallic plate. The connecting metallic plate is made of copper and is disposed on a positive electrode of one battery cell and a negative electrode of another battery cell to form a lap joint. Welds are formed in predetermined positions on the connecting metallic plate above the positive and negative electrodes by arc spot welding. The electrodes are formed of nickel-coated steel. The depth h of weld penetration in the weld is greater than the thickness T1 of the connecting metallic plate and smaller than the thickness T1 plus the thickness T2 of one of the electrodes, that is, T1
The present invention aims to decrease in the number of components and to achieve An improvement in terms of workablility for assembly.Bus bars (11) and (12) electrically connecting the positive and negative poles of adjacent unit batteries (1) and a detection circuit (13) configured to detect the voltage of the unit batteries (1) are integrally molded with resin into a bus bar module (10). One bus bar (11) of the bus bar module (10) connects the positive pole of one unit battery (1a) and the negative pole of a positive pole side unit battery (1b) situated on the positive pole side of the unit battery (1a) in the battery module; and the other bus bar (12) connected to the negative pole of the unit battery (1a) is connected to the positive pole of a negative pole side unit battery (1c) situated on the negative pole side of the unit battery (1a) in the battery module. The detection circuit (13) is arranged between the bus bar (11) and the bus bar (12), and detects the voltage of the unit battery (1a) and of the positive pole side unit battery (1b).
Batteries utilizing electrode coatings directly on nanoporous separators
Provided are lithium batteries utilizing electrode coatings directly on nanoporous separators, the batteries comprising (a) a separator/cathode assembly, (b) a separator/anode assembly, and (c) an electrolyte, where the batteries comprise alternating layers of the separator/cathode assembly and the separator/anode assembly. Preferably, a portion of the separator/cathode assembly is not in contact with the separator/anode assembly and a portion of the separator/anode assembly is not in contact with the separator/cathode assembly, and electrically conductive edge connections are made through these portions. Also provided are methods of preparing such lithium batteries.
Glass-fiber containing composite materials for alkali metal-based batteries and methods of making
Glass-fiber composites are described that include a substrate containing glass fibers and particles in contact with the glass fiber substrate. The particles may include an alkali-metal containing compound. In addition, batteries are described with an anode, a cathode, and an electrolyte. The cathode may include alkali-metal containing nanoparticles in contact with glass fibers. Also describe are methods of making a glass-fiber composite. The methods may include the steps of forming a wet laid non-woven glass fiber substrate, and contacting alkali-metal containing particles on the substrate.
Secondary battery with film covering safety vent
A secondary battery includes a case configured to accommodate an electrode assembly, a safety vent on a first side of the case, and a film unit disposed on the first side of the case, the film unit including a first film unit covering at least a part of the safety vent, the first film unit including a break unit, and a second film unit extending from the first film unit, the second film unit being adhered to the case.
Fuel cell system with regeneration of electrode activity during start or stop
A performance recovery operation for a fuel cell system effectively restores a fuel electrode such that, upon starting or stopping of operation of the fuel cell, both fuel and oxidizing electrodes are disposed in a hydrogen atmosphere and then the fuel electrode is maintained at a higher potential level than in a normal operation.
Controlling fuel cell
A fuel cell system has a fuel cell that includes at least one cell with an electrolyte membrane, an index value acquirer and a controller. The index value acquirer obtains a temperature index value correlated to temperature of a short circuit area in each cell. The controller controls a control parameter of the fuel cell affecting the temperature of the short circuit area, such that the temperature index value is within a predetermined range set to make the temperature of the short circuit area lower than a decomposition temperature of the electrolyte membrane.
A fuel cell includes an electrolyte-electrode assembly, a frame member, a first separator, and a second separator. The frame member is provided to face a first surface of the second separator and includes a resin wall which forms a periphery of a first reactant gas passage. The resin wall has a thin-walled portion which overlaps with a cooling medium connecting portion in a stacking direction and which protrudes toward the first reactant gas passage in the stacking direction by a first dimension from a surface of the frame member. Another portion of the resin wall protrudes toward the second separator in the stacking direction by a second dimension from the surface of the frame member. The first dimension is smaller than the second dimension.
Electro-optical device and electronic apparatus
The invention provides an electro-optical device that has luminescent elements of a long lifetime by preventing oxygen or moisture from entering to luminescent layers or electrodes even in case of an electrode-optical device provided with a number of luminescent layers and an electronic apparatus provided with the electro-optical device. The invention can include an electro-optical device having first electrodes on a base body, a plurality of element areas including element layers including at least one functional layers disposed above the first electrodes, a second electrode formed above the element layers, a surrounding sections disposed on the base body so as to cover outer sides of the element layers included the element areas in the nearest proximity of the periphery of the base body, and a gas-barrier layer covering over the second electrode. Outer sides of the surrounding sections can be covered with the second electrode, and the gas-barrier layer can be in contact with the base body.
Organic light emitting diode display and manufacturing method thereof
Disclosed are an organic light emitting diode display and a manufacturing method thereof, and, more particularly, an organic light emitting diode display which includes an encapsulation layer including an inorganic layer containing carbon at a level of about 0.2 wt % to about 6.2 wt % and an organic layer and a manufacturing method thereof.
Organic light emitting device with a protective layer including at least one of a nano-clay and a graphite oxide formed on the anode
There are provided an organic light emitting diode and a method of manufacturing the same. The organic light emitting diode includes: an anode formed on a substrate; a protective layer having at least one inorganic material layer stacked therein, the at least one inorganic material layer containing at least one of a nano-clay and a graphite oxide; a light emitting polymer layer formed on the protective layer; and a cathode formed on the light emitting polymer layer. In the case of the organic light emitting diode, the injection concentration of holes may be controlled, such that the stability of an element may be improved and the lifespan thereof may be increased.
Organic light-emitting display apparatus and method of manufacturing the same
An organic light-emitting display apparatus and a method of manufacturing the same are provided. The organic light-emitting display apparatus includes a substrate, an organic light-emitting device on the substrate, an encapsulation layer covering the organic light-emitting device, and a low adhesive layer covering the encapsulation layer.
Method for producing organic light-emitting element
Method for manufacturing organic EL element including anode, hole injection layer, buffer layer, light-emitting layer, and cathode, layered on substrate in the stated order, and banks defining a light-emission region, and having excellent light-emission characteristics, due to the hole injection layer having excellent hole injection efficiency, being a tungsten oxide layer including an oxygen vacancy structure, formed under predetermined conditions to have an occupied energy level within a binding energy range from 1.8 eV to 3.6 eV lower than a lowest binding energy of a valence band, and after formation, subjected to atmospheric firing at a temperature within 200° C.-230° C. inclusive for a processing time of 15-45 minutes inclusive to have increased film density and improved dissolution resistance against an etching solution, a cleaning liquid, etc., used in a bank forming process.
Encapsulation for organic optoelectronic devices
An organic optoelectronic device includes a substrate, an anode, a cathode, an active region comprising an organic material, an encapsulation that isolates the active region from an ambient environment, wherein the encapsulation comprises a housing, and a first hermetically sealed electrical path through the housing.
Manufacturing method and manufacturing apparatus of functional element
According to one embodiment, the manufacturing method of a functional element includes filling a solvent comprising hydrogen gas and having organic molecules dispersed therein into a gap between the first electrode and the second electrode formed facing the first electrode, and forming an organic layer containing the organic molecules mentioned above between the first electrode and the second electrode.
Metal complexes of cyclometallated imidazo[1,2-f]phenanthridine and diimidazo[1,2-a:1′,2′-c]quinazoline ligands and isoelectronic and benzannulated analogs thereof
Compounds comprising phosphorescent metal complexes comprising cyclometallated imidazo[1,2-f]phenanthridine and diimidazo[1,2-a:1′,2′-c]quinazoline ligands, or isoelectronic or benzannulated analogs thereof, are described. Organic light emitting diode devices comprising these compounds are also described.
Organometallic complex, light-emitting element, display device, electronic device, and lighting device
Provided are organometallic complexes that can exhibit phosphorescence. One of the novel organometallic complexes is represented by General Formula (G1). In General Formula (G1), R1 represents any of an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 5 to 8 carbon atoms which may have a substituent, and an aralkyl group having 7 to 10 carbon atoms which may have a substituent. In addition, R2 represents any of an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 5 to 8 carbon atoms which may have a substituent, and an aryl group having 6 to 12 carbon atoms which may have a substituent. Further, Ar represents an arylene group having 6 to 13 carbon atoms which may have a substituent. Further, M represents a Group 9 element or a Group 10 element.
Light-emitting element and electronic device
An object is to provide a light-emitting element with high emission efficiency which includes a novel carbazole derivative that has a wide energy gap and can be used for a transport layer or a host material in a light-emitting element. A carbazole derivative in which the 4-position of dibenzothiophene or dibenzofuran is bonded to the 2- or 3-position of carbazole has been able to be provided by use of the carbazole derivative. Further, a light-emitting element having high emission efficiency has been able to be provided by use of the carbazole derivative.
Aryl-amine derivative and organic electroluminescent device using the same as a hole transport material
An aryl amine derivative and an organic electroluminescent device using the aryl amine derivative as a hole transport material, the aryl amine derivative being represented by the following Chemical Formula 1.
Method for preparing doped organic semiconductor materials and formulation utilized therein
The present invention relates to a method for preparing doped organic semiconductor materials as well as a formulation which may be utilized in that method. The doped organic semiconductor materials are prepared by preparing a solution or suspension containing at least one dopant precursor, at least one organic material to be doped, and a solvent. The solution or suspension is then applied onto a substrate. After removing the solvent, the dopant precursor is converted into a dopant by application of activation energy. The dopant precursor, which is a dimer, oligomer, polymer, dispiro compound, or polycycle, is cleaved by the application of activation energy.
Organic light emitting display device and method of manufacturing the same
Discussed is an organic light emitting display device. The organic light emitting display device includes a substrate in which red, green, and blue pixel areas are defined, a first electrode and a first hole transporting layer that are formed on the substrate, first to third emission common layers formed in each of the pixel areas on the first hole transporting layer, and an electron transporting layer and a second electrode that are formed on the third emission common layer. Accordingly, color mixture is prevented, limitations due to a defective mask are overcome, a process is simplified, and the manufacturing cost is saved.
Liquid ejecting head, liquid ejecting apparatus, and piezoelectric element
A liquid ejecting head includes a piezoelectric element including a first electrode, a piezoelectric layer overlying the first electrode with an orientation control layer therebetween, and a second electrode overlying the piezoelectric layer. The piezoelectric layer is made of a complex oxide having a perovskite structure including an A site containing lead and a B site containing zirconium and titanium. The orientation control layer is made of a complex oxide having a perovskite structure including an A site containing lanthanum and a B site containing nickel and titanium.
Methods for forming lead zirconate titanate nanoparticles
Methods for forming lead zirconate titanate (PZT) nanoparticles are provided. The PZT nanoparticles are formed from a precursor solution, comprising a source of lead, a source of titanium, a source of zirconium, and a mineralizer, that undergoes a hydro thermal process. The size and morphology of the PZT nanoparticles are controlled, in part, by the heating schedule used during the hydro thermal process.
Thin film piezoelectric device
A thin film piezoelectric device according to the present invention includes a pair of electrode layers and a piezoelectric thin film interposed between the pair of electrode layers, wherein the piezoelectric thin film contains a rare gas element and has a content gradient of the rare gas element in the thickness direction of the piezoelectric thin film.
Mixed valent oxide memory and method
Memory devices and methods of forming include a mixed valent oxide located between a first electrode and a second electrode. Implantation of a metal below a surface of one of the electrodes allows formation of the mixed valent oxide with a direct interface to the electrode. An intermetallic oxide can be subsequently formed between the mixed valent oxide and the electrode by annealing the structure.
Semiconductor device and method for fabricating the same, and microprocessor, processor, system, data storage system and memory system including the semiconductor device
A semiconductor device includes a first conductive layer; a second conductive layer; and a resistance variable element interposed between the first conductive layer and the second conductive layer and includes a doped first metal oxide layer and a second metal oxide layer. A density of oxygen vacancies of the second metal oxide layer is higher than that of the doped first metal oxide layer. The doped first metal oxide layer includes a doping material implanted thereto to suppress grains in the doped first metal oxide layer from increasing in size.
Apparatus for harvesting electrical power from mechanical energy
An apparatus for harvesting electrical power from mechanical energy is described. The apparatus includes: a flux path. The flux path includes: a magnetic material having a magnetic property that is a function of stress on the magnetic material; a first magnetically conductive material proximate the magnetic material; a magnet in the flux path, wherein a magnetomotive force of the magnet causes magnetic flux; and a component configured to transfer changes in load caused by an external source to the magnetic material.
Tunnel magnetoresistance read head with narrow shield-to-shield spacing
A tunnel magnetoresistance (TMR) read sensor having a tabbed AFM layer and an extended pinned layer and methods for making the same are provided. The TMR read sensor has an AFM layer recessed from the air bearing surface, providing a reduced shield-to-shield distance.
An ultrasonic transducer includes a wear plate (2), a piezoelectric element (8) arranged rearwards of the wear plate and a rigid block (16) arranged rearwards of the piezoelectric element and configured to provide a backing mass for the piezoelectric element. The wear plate extends across the piezoelectric element and rearwards so as to provide a cap over the piezoelectric element and sides of at least a forward portion of the rigid block.
Diode package having improved lead wire and manufacturing method thereof
According to the present invention, there is provided a diode package in which a diode chip is sealed by a molding compound and a lead wire connected to the diode chip is led outside the molding compound, wherein the lead wire is divided into an upper lead wire and a lower lead wire, both lead wires each being formed in a long, flat plate and having a first stage and a second stage, both stages being opposite from each other, the upper side of the diode chip is attached to the lower side of the first stage of the upper lead wire, the lower side of the diode chip is attached to the upper side of the first stage of the lower lead wire, and the second stage of the upper lead wire and the second stage of the lower lead wire are led out in the lateral direction of the molding compound.
Light emitting apparatus, illumination apparatus and display apparatus
Disclosed herein is a light emitting apparatus including: one or a plurality of light emitting devices each having a plurality of electrodes and each emitting light from the upper surface of the light emitting device; a plurality of terminal electrodes provided on the lower side of the light emitting devices in a positional relation with the light emitting devices and electrically connected to the electrodes of the light emitting devices; a first metal line brought into contact with the upper surfaces of the light emitting devices and one of the terminal electrodes, provided at a location separated away from side surfaces of the light emitting devices and created in a film creation process; and an insulator in which the light emitting devices and the first metal line are embedded.
LED lens design with more uniform color-over-angle emission
An LED device with improved angular color performance has a silicone lens shaped as a portion of a sphere. The lens is molded over an array of LED dies disposed on the upper surface of a substrate. Phosphor particles are disbursed throughout the material used to mold the lens. The distance between farthest apart edges of the LED dies is more than half of the length that the lens extends over the surface of the substrate. The distance from the top of the lens dome to the surface of the substrate is between 57% and 73% of the radius of the sphere. Shaping the lens as the top two thirds of a hemisphere reduces the non-uniformity in the emitted color such that neither of the CIE color coordinates x or y of the color changes more than 0.004 over all emission angles relative to the surface of the substrate.
Semiconductor light-emitting device and method of forming electrode
A semiconductor light-emitting device having an electrode that can be manufactured by a simple method and is unlikely to deteriorate, and a method for forming the electrode are provided. The semiconductor light-emitting device according to the present invention has a semiconductor layered structure having a light-emitting layer that emits light by supplying electric power and an electrode formed on the semiconductor layered structure. The electrode has a reflection layer that reflects light exiting from the light-emitting layer, a barrier layer formed on the upper side and side surface of the reflection layer, and a pad layer formed only on the top surface of the barrier layer.
Method for manufacturing a thermoelectric generator
A method for manufacturing a thermoelectric generator includes the steps of replicating a structure into a flexible substrate for providing a set of cavities; providing an initiator in the cavities for growing respective piles of thermoelectric materials; growing the respective piles of thermoelectric materials from said initiator; and providing electrical connection between the respective piles of thermoelectric materials for forming thermocouples of the thermoelectric generator.
Forming light-emitting diodes using seed particles
A device includes a substrate; a group III-V semiconductor layer disposed over the substrate; and a seed layer disposed over the group III-V semiconductor layer. The substrate is a printed circuit board. The group III-V semiconductor layer includes a multiple quantum well (MQW) layer, a p-type doped layer, and an n-type doped layer. The seed layer includes a plurality of miniature elements. The miniature elements each contain a single-crystal material suitable for epitaxially growing the group III-V semiconductor layer. The miniature elements collectively cover less than 100% of a surface of the group III-V semiconductor layer.
System and method for energy recovery
The present disclosure relates to an energy recovery system for a vehicle. The vehicle includes a plurality of heat sources generating waste heat. The energy recovery system includes at least one thermoelectric module interfaced with each of the plurality of heat sources. Further, the waste heat provides a high temperature heat source for each of the thermoelectric modules. A low temperature heat source is interfaced with each of the thermoelectric modules. A temperature difference between the high temperature heat source and low temperature heat source produces a thermoelectric power. A controller is configured to monitor the thermoelectric power generated by each of the thermoelectric modules. The controller is further configured to optimize a utilization of the thermoelectric power generated by each of the thermoelectric modules.
Thermoelectric conversion element, thermoelectric conversion module, method for producing thermoelectric conversion element
A thermoelectric conversion element, a thermoelectric conversion module, and a method for producing a thermoelectric conversion element are provided, each of the element and the module having a low contact resistance between a p-type thermoelectric conversion material and an n-type thermoelectric conversion material and being capable of being used at high temperatures without deterioration due to oxidation. A p-type oxide thermoelectric conversion material is primarily made of a substance having a layered perovskite structure represented by the formula: A2BO4, wherein A includes at least La, and B represents at least one element including at least Cu. An n-type oxide thermoelectric conversion material is primarily made of a substance having a layered perovskite structure represented by the formula: D2EO4, wherein D includes at least one of Pr, Nd, Sm, and Gd, and E represents at least one element including at least Cu. The p-type oxide thermoelectric conversion material, the n-type oxide thermoelectric conversion material, and a composite insulating material are co-sintered. A glass having a softening point of about 550° C. to about 750° C. is used as a glass defining the composite insulating material.
Lateral photovoltaic device for near field use
A device, method and process of fabricating an interdigitated multicell thermo-photo-voltaic component that is particularly efficient for generating electrical energy from photons in the red and near-infrared spectrum received from a heat source in the near field. Where the absorbing region is germanium, the device is capable of generating electrical energy by absorbing photon energy in the greater than 0.67 electron volt range corresponding to radiation in the infrared and near-infrared spectrum. Use of germanium semiconductor material provides a good match for converting energy from a low temperature heat source. The side that is opposite the photon receiving side of the device includes metal interconnections and dielectric material which provide an excellent back surface reflector for recycling below band photons back to the emitter. Multiple cells may be fabricated and interconnected as a monolithic large scale array for improved performance.
Photovoltaic devices with enhanced efficiencies using high-aspect ratio nanostructures
Photovoltaic devices and techniques for enhancing efficiency thereof are provided. In one aspect, a photovoltaic device is provided. The photovoltaic device comprises a photocell having a first photoactive layer and a second photoactive layer adjacent to the first photoactive layer so as to form a heterojunction between the first photoactive layer and the second photoactive layer; and a plurality of high-aspect-ratio nanostructures on one or more surfaces of the second photoactive layer. The plurality of high-aspect-ratio nanostructures are configured to act as a scattering media for incident light. The plurality of high-aspect-ratio nanostructures can also be configured to create an optical resonance effect in the incident light.
Ultraviolet sensor and method for manufacturing the same
An ultraviolet sensor has a p-type semiconductor layer composed of a solid solution of NiO and ZnO, and an n-type semiconductor layer composed of ZnO and joined to the p-type semiconductor layer such that a part of the surface of the p-type semiconductor layer is exposed. In the p-type semiconductor layer, trivalent Ni is contained in a crystal grain in a state of being solid-solved with the solid solution of NiO and ZnO. The trivalent Ni can be contained in the crystal grain of the p-type semiconductor layer by adding NiOOH to NiO and ZnO, and firing the resulting mixture. Thereby, an inexpensive ultraviolet sensor capable of being downsized, which can easily detect the intensity of ultraviolet light by a photovoltaic power without utilizing a peripheral circuit can be realized.
Photo diode and method of forming the same
A method for forming a photo diode is provided. The method includes: forming a first pair of electrodes and a second pair of electrodes over a substrate by using a conductive layer; forming a dielectric layer over the substrate; patterning the dielectric layer over the substrate; forming a photo conversion layer over the substrate; and forming a color filter layer over the photo conversion layer, wherein at least a portion of the dielectric layer separates a first portion of the color filter layer corresponding to a first pixel from a second portion of the color filer layer corresponding to a second pixel, and a refractive index of the dielectric layer is lower than a refractive index of the color filter layer, wherein the first pair of electrodes corresponds to the first pixel and the second pair of electrodes corresponds to the second pixel.
Photodiode-type ultraviolet sensor having a stacked structure and method for producing the same
An ultraviolet sensor having a p-type semiconductor layer containing, as its main constituent, a solid solution of NiO and ZnO, and an n-type semiconductor layer containing ZnO as its main constituent, which is joined to the p-type semiconductor layer such that a portion of the p-type semiconductor layer is exposed. An internal electrode is buried in the p-type semiconductor layer and opposed to the n-type semiconductor layer. Both ends of the internal electrode are exposed at both end surfaces of the p-type semiconductor layer, and first and second high-resistance layers composed of insulating materials cover one end of the internal electrode. The second high-resistance layer is obtained by diffusion of the insulating material from the first high-resistance layer into the p-type semiconductor layer. A first external electrode is connected to the other end of the internal electrode, and a second external electrode is connected to the n-type semiconductor layer.
Nickel-cobalt alloys as current collectors and conductive interconnects and deposition thereof on transparent conductive oxides
The invention relates to nickel-cobalt alloys as current collectors and conductive interconnects, and to methods of deposition thereof on transparent conductive oxides. The invention further relates to transparent conductive oxides on which a nickel-cobalt alloy is deposited and to electrodes made of such transparent conductive oxides for photochemical applications, in particular, for dye-sensitized solar cells (DSSCs).
Semiconductor devices and methods for forming patterned radiation blocking on a semiconductor device
Several embodiments for semiconductor devices and methods for forming semiconductor devices are disclosed herein. One embodiment is directed to a method for manufacturing a microelectronic imager having a die including an image sensor, an integrated circuit electrically coupled to the image sensor, and electrical connectors electrically coupled to the integrated circuit. The method can comprise covering the electrical connectors with a radiation blocking layer and forming apertures aligned with the electrical connectors through a layer of photo-resist on the radiation blocking layer. The radiation blocking layer is not photoreactive such that it cannot be patterned using radiation. The method further includes etching openings in the radiation blocking layer through the apertures of the photo-resist layer.
Differential optical receiver for avalanche photodiode and SiPM
A device and method to protect an APD or SiPM optical receiver against photodetector voltage supply variation is presented. A differential trans-impedance amplifier includes one input connected to the photodetector and the other input connected to a high voltage supply variation sensing device. The sensing element includes a circuit replicating the impedance of the photodetector.
Pixel structure and fabricating method thereof
The pixel structure includes a scan line, a data line, a thin-film transistor, a first electrode layer, a protective layer and a second electrode layer. The thin-film transistor is electrically connected to the scan line and the data line, and includes a gate, an oxide semiconductor layer, an insulating layer, a source and a drain. The first electrode layer is in the same layer as the oxide semiconductor layer, and is surrounded by the scan line and the data line. The second electrode layer is located on the first electrode layer, and the protective layer is located between the first electrode layer and the second electrode layer, wherein one of the first and second electrode layers is electrically connected to the thin-film transistor, and the other is connected to a common voltage. The second electrode layer includes a plurality of slits exposing an area of the first electrode layer.
Methods of forming ultra thin package structures including low temperature solder and structures formed therby
Methods of forming a microelectronic packaging structure and associated structures formed thereby are described. Those methods and structures may include attaching a device to a patch substrate, wherein the assembled device and patch substrate comprise a warpage, attaching the assembled device and patch substrate to an interposer to form a package structure, and then reflowing the package structure at a temperature below about 200 degrees Celsius to form a substantially flat package structure.
Zinc oxide-based thin film transistor biosensors with high sensitivity and selectivity
This application discloses ZnO film transistor-based immunosensors (ZnO-bioTFT), 2T biosensor arrays formed from two integrated ZnO-bioTFTs, 1T1R-based nonvolatile memory (NVM) arrays formed from ZnO-bioTFT (T) integrated with ZnO-based resistive switches (R), as well as integrated bioTFT (IBTFT) sensor systems formed from 2T biosensor arrays and 1T1R NVM arrays. Through biofunctionalization, these biosensors can perform immunosensing with high sensitivity and selectivity, and therefore have a wide range of applications, for example, in detecting target biomolecules or small molecules, and potential application in cancer diagnosis and treatment.
Graphene heterostructure field effect transistors
A field effect transistor includes a substrate, a first graphene (Gr) layer on the substrate, a second graphene (Gr) layer on the substrate, a fluorographene (GrF) layer on the substrate and between the first and second graphene layers, a first ohmic contact on the first graphene layer, a second ohmic contact on the second graphene layer, a gate aligned over the fluorographene layer, and a gate dielectric between the gate and the fluorographene layer and between the gate and the first and second ohmic contacts.
A semiconductor structure includes a substrate, an undoped GaP insulating layer formed over the substrate, and a semiconductor layer formed over the GaP layer.
Selective epitaxy process control
Methods of selectively and epitaxially forming a silicon-containing material on a substrate surface contained within a process chamber are provided. In one or more embodiments, the pressure in the process chamber is reduced during deposition of material on the substrate and increased during etching of material from the substrate. According to an embodiment, process gases are flowed into the chamber through first zone and a second zone to provide a ratio of the amount of gas flowed to the first zone and the amount of gas flowed to the second zone. In one or more embodiments, the first zone is an inner radial zone and the second zone is an outer radial zone, and ratio of inner zone gas flow to outer zone gas flow is less during deposition than during etching. According to one or more embodiments, the selective epitaxial process includes repeating a cycle of a deposition and then an etching process, and an optional purge until the desired thickness of an epitaxial layer is grown.
Method and apparatus for forming a CMOS device
A method and apparatus for forming a CMOS device are provided. The CMOS device may include an N-type channel region formed of an III-V material and a P-type channel region formed of a germanium material. Over each channel may be formed corresponding gates and source/drain regions. The source/drain regions may be formed of a germanium material and one or more metallization layers. An anneal may be performed to form ohmic contacts for the source/drain regions. Openings may be formed in a dielectric layer covering the device and conductive plugs may be formed to provide contact to the source/drain regions.
Semiconductor device having buried gate, method of fabricating the same, and module and system having the same
A semiconductor device includes junction regions formed in upper portions of both sidewalls of a trench formed in a semiconductor substrate, a first gate electrode buried in the trench and having a stepped upper surface, and a second gate electrode formed on the first gate electrode to overlap a junction region.
Fabrication method for a chip package
An embodiment of the present invention relates to a chip package and fabrication method thereof, which includes a chip protection layer or an additional etching stop layer to cover conducting pads to prevent dicing residue from damaging or scratching the conducting pads. According to another embodiment, a chip protection layer, an additional etching stop layer formed thereon, or a metal etching stop layer level with conducting pads or combinations thereof may be used when etching an intermetal dielectric layer at a structural etching region and a silicon substrate to form an opening for subsequent semiconductor manufacturing processes.
Electronic device including a tapered trench and a conductive structure therein
An electronic device can include a semiconductor layer, and a trench extending into the semiconductor layer and having a tapered shape. In an embodiment, the trench includes a wider portion and a narrower portion. The electronic device can include a doped semiconductor region that extends to a narrower portion of the trench and has a dopant concentration greater than a dopant concentration of the semiconductor layer. In another embodiment, the electronic device can include a conductive structure within a relatively narrower portion of the trench, and a conductive electrode within a relatively wider portion of the trench. In another embodiment, a process of forming the electronic device can include forming a sacrificial plug and may allow insulating layers of different thicknesses to be formed within the trench.
Methods of forming a semiconductor device with low-k spacers and the resulting device
One method disclosed herein includes forming at least one sacrificial sidewall spacer adjacent a sacrificial gate structure that is formed above a semiconducting substrate, removing at least a portion of the sacrificial gate structure to thereby define a gate cavity that is laterally defined by the sacrificial spacer, forming a replacement gate structure in the gate cavity, removing the sacrificial spacer to thereby define a spacer cavity adjacent the replacement gate structure, and forming a low-k spacer in the spacer cavity. A novel device disclosed herein includes a gate structure positioned above a semiconducting substrate, wherein the gate insulation layer has two upstanding portions that are substantially vertically oriented relative to an upper surface of the substrate. The device further includes a low-k sidewall spacer positioned adjacent each of the vertically oriented upstanding portions of the gate insulation layer.
Through-silicon via with low-K dielectric liner
A semiconductor substrate having a through-silicon via with an air gap interposed between the through-silicon via and the semiconductor substrate is provided. An opening is formed partially through the semiconductor substrate. The opening is first lined with a first liner and then the opening is filled with a conductive material. A backside of the semiconductor substrate is thinned to expose the first liner, which is subsequently removed and a second liner formed with a low-k or extra low-k dielectric is formed in its place.