Electronic device with rotatable stop plate
An electronic device includes a receiving bracket and two electronic modules. The receiving bracket includes a partition plate to divide the receiving bracket into a first receiving space and a second receiving space. Each of the first receiving space and second receiving space includes an outlet located at an end of the receiving bracket. The partition plate defines a through slot. A stop plate is pivotably connected to an end of the through slot near the outlets. Two resilient tabs are formed on opposite sides of the stop plate, and respectively face the first receiving space and second receiving space. The electronic modules are received in the first receiving space and second receiving space, and deform the resilient tabs.
Cooling computing assets in a data center using hot and cold stacks
A data center includes a hot stack for exhausting heated air from the data center and a cold stack that cools intake air relative to the environment surrounding the data center. The temperature difference between air in the cold stack and the environment creates an airflow through the cold stack and into a cold aisle. This pressurizes the cold aisle, causing air to flow from the cold aisle across computing assets to a lower-pressure hot aisle. While flowing across the computing assets, the air absorbs heat generated by the computing assets. The temperature difference between the heated air and air outside the data center causes the heated air to flow through the hot stack and outside of the data center.
Selective clamping of electronics card to coolant-cooled structure
Cooling apparatuses and coolant-cooled electronic assemblies are provided which include a thermal transfer structure configured to couple to an electronics card which operatively inserts into an electronic system. The thermal transfer structure includes a clamping structure movable between opened and clamped positions. A coolant-cooled structure, which is associated with the electronic system within which the electronics card is operatively inserted, resides between the electronics card and, at least partially, the clamping structure with insertion of the electronics card into the electronic system. The opened position of the clamping structure facilitates docking of the electronics card within the electronic system with the coolant-cooled structure between the card and, at least partially, the clamping structure, and movement of the clamping structure to the clamped position facilitates clamping of the thermal transfer structure to the coolant-cooled structure, and thermal conduction of heat from the card to the coolant-cooled structure.
Heat dissipation apparatus
A heat dissipation apparatus for effective dissipation of heat comprises an air flow module and a heat sink. The air flow module comprises a casing, a piston module slidably mounted in the casing, an airflow outlet module attached to a first side of the casing, and an electromagnet module attached to a second side of the casing that is opposite to the first side. The airflow outlet module comprises a plurality of airflow outlet grooves. The piston module comprises a magnet. The heat sink is aligned with the plurality of airflow outlet grooves. The electromagnet module is capable of moving the magnet and the piston module back and forth in the casing. The air flow module is capable of blowing air to the heat sink via the plurality of airflow outlet grooves.
Modular datacenter server rack retention
A modular datacenter includes a server rack, a main beam, and an attachment member. The server rack is configured to hold a plurality of servers. The main beam is configured to hold the server rack in a specific location within the modular datacenter. The attachment member is coupled to the main beam and connected to the server rack. The attachment member is configured to apply a force to the server rack to put the server rack under compression or tension, and to change the natural frequency of the server rack based on the compression or the tension and on the location of the attachment member with respect to the server rack.
Slide rail assembly for use in rack system and reinforcement member thereof
A slide rail assembly includes a slide assembly, a front support, a first rear support, a second rear support, and a reinforcement member. The slide rail assembly includes an outer rail, an inner rail and an intermediate rail. The front support and the first rear support are respectively connected to the front end and the outside of the outer rail. The second rear support is movably connected to the first rear support. The reinforcement member includes a body, two first support parts and at least two second support parts. The body has a slot and a contact portion. The two first support parts embrace the outer rail, and the at least two second support parts embrace the second rear support. The slide rail assembly is installed to the rack. The reinforcement member reinforces the connection between the second rear support and the outer rail.
Modular data center and associated methods
A number of structural modules are configured to be secured together and to be secured to a foundation. Each of the structural modules is without one or more sidewalls, such that when the structural modules are secured together they form a building structure that encloses an open region which continuously extends through interiors of the structural modules. Each of the number of structural modules is structurally formed to be independently transported. A power module is configured to be secured to one of the structural modules and to the foundation. The power module is defined as an enclosed structure and is structurally formed to be independently transported. The power module is equipped with electrical components for supplying and distributing electrical power to a pre-defined layout of data equipment to be deployed within the open region of the building structure formed by the number of structural modules.
Appendage-mounted display apparatus
An appendage-mounted display apparatus comprising a device mount for attaching electronic devices and a cuff assembly that provides a uniform tension fit around a user's appendage. The cuff assembly comprises a multi-layer blend of soft and rigid components and a ratcheting lacing or strap system to achieve a customizable, non-slip fit that may be quickly and easily adjusted with one hand. The device mount may be adapted to accommodate a variety of electronic devices including mobile phones, smartphones, and other communication devices, portable computers, maps, audio and music devices, global positioning system devices, and other interactive electronic devices and displays, as well as paper maps, checklists, and other static forms of guidance and instruction. In addition, the device mount may include a rail system for attaching a flashlight and/or other tools.
Fuse box and electrical cut-off device provided with such a box
An electrical cut-off device (1) with a single cut-off which comprises fuse boxes (5) that are each provided with a fuse (50) connected in series with the single cut-off element. The fuse box is a separate element mounted onto the electrical cut-off device and comprises a handle (55) that is movable, relative to the electrical cut-off device, into a passive position where the fuse box is connected to the electrical cut-off device but not locked, the electrical cut-off device being in an open position, an active position wherein the fuse box is connected and locked to the electrical cut-off device, the electrical cut-off device is switchable between open and closed positions and an intermediate position where the fuse box is partially removed from the electrical cut-off device and forms a disconnected position. The electrical cut-off device being able to be padlocked, in the intermediate position, so that it is isolated, and the disconnected position of the contacts being visible to the operator through the fuse box.
One aspect of an electronic component is an electronic component comprising an element body having a mounting surface and a plurality of side faces, the electronic component further comprising a first terminal electrode formed on the mounting surface and one of the plurality of side faces, a second terminal electrode formed on the mounting surface and another side face in the plurality of side faces, a metal film disposed on a surface of a mounting part of the first and second terminal electrodes formed on the mounting surface, and an oxide film covering at least a part of surfaces of side face parts of the first and second terminal electrodes formed on the side faces.
Housing structure and electronic device using the same
A housing structure includes a shell integrally formed in aluminum and at least one mounting member. The shell includes a bottom wall, a first end wall, a second end wall and a top wall connected to the first end wall and the second end wall. The first end wall and the second end wall extend from opposite ends of the bottom wall. The bottom wall, the first end wall, the second end wall, and the top wall cooperatively form a receiving space with at least one opening. A first installation rail and a second installation rail protrude respectively from inners wall of the first end wall and the second end wall. The at least one mounting member is connected with the first installation rail and the second installation rail to enclose the at least one opening. The disclosure also supplies an electronic device using the same.
Display device and frame member
A display device includes a frame body (15) formed by joining a plurality of frame members (15a to 15f) for supporting a circumferential end portion of a display panel (2), wherein a cushioning material (17a) of a first frame member (15a) of the plurality of frame members includes a protruding portion (Ta) protruding toward a second frame member (15b) to be joined to the first frame member and a recessed portion (Ha) recessed inwardly, and a cushioning material (17b) of the second frame member (15b) includes a recessed portion (Hb) recessed inwardly so as to correspond to the protruding portion (Ta) of the cushioning material (17a) of the first frame member and a protruding portion (Tb) protruding so as to correspond to the recessed portion (Ha) of the cushioning material (17a) of the first frame member (15a).
A bus is placed at the center of a housing. Breakers and cables forming branch circuits branching from the bus are placed at the upper and lower stages in the housing, being displaced in the right-left direction. Spaces formed between the side wall of the housing and the side walls of an upper-stage breaker compartment and an upper-stage cable compartment containing the upper-stage apparatuses are used as paths leading to the housing ceiling for a bus compartment, and a lower-stage breaker compartment and a lower-stage cable compartment containing the lower-stage apparatuses. The bus compartment and all the apparatus compartments each directly lead to a ceiling portion of the housing and have an opening portion. Pressure discharge plates are provided on the opening portions.
Information processing apparatus, information processing method, program, and board manufacturing system
An information processing apparatus is configured to compute the shape of a conductive pattern to be formed on a board by a drawing apparatus that performs drawing on the board using conductive liquid droplets. The information processing apparatus includes an image data generation unit configured to generate image data in which dots each having a diameter determined according to a drawing condition of a conductive pattern by the drawing apparatus are arranged at respective positions which are indicated by data of a conductive pattern and at which conductive liquid droplets are to be landed.
Electro-optical module, power supply substrate, wiring substrate, and electronic apparatus
This invention provides an electro-optical module with reduced noise in driving voltage. The invention can include a power supply substrate that is arranged separately from the flexible substrate having a driver, so that the noise of the driving voltage supplied from the power supply substrate is reduced.
Current-carrying structures fabricated using voltage switchable dielectric materials
A method comprises providing a voltage switchable dielectric material having a characteristic voltage, exposing the voltage switchable dielectric material to a source of ions associated with an electrically conductive material, and creating a voltage difference between the source and the voltage switchable dielectric material that is greater than the characteristic voltage. Electrical current is allowed to flow from the voltage switchable dielectric material, and the electrically conductive material is deposited on the voltage switchable dielectric material. A body comprises a voltage switchable dielectric material and a conductive material deposited on the voltage switchable dielectric material using an electrochemical process. In some cases, the conductive material is deposited using electroplating.
Conductor structure with integrated via element
An electrical circuit structure can include a first trace formed using a first conductive layer and a second trace formed using a second conductive layer. The first trace can be vertically aligned with the second trace. The electrical circuit structure can include a via segment formed of conductive material in a third conductive layer between the first conductive layer and the second conductive layer. The via segment can contact the first trace and the second trace forming a first conductor structure configured to convey an electrical signal in a direction parallel to the first conductive layer.
Heat-dissipating assemblies and methods of assembling heat-dissipating assemblies
Heat-dissipating assemblies may comprise mounting tabs attached to heat-generating electrical components at a first surface of each mounting tab. An opposing second surface of each mounting tab may be at least substantially coplanar with the second surfaces of the other mounting tabs. A heat sink element may be attached to the second surfaces of at least some of the mounting tabs. Methods of assembling heat-dissipating assemblies may comprise attaching first surfaces of mounting tabs to at least substantially planar assembly surfaces of an assembly fixture such that the first surfaces of the mounting tabs are at least substantially coplanar with one another. Opposing second surfaces of the mounting tabs may be attached to heat-generating electrical components. The assembly fixture may be removed. A heat sink element may be attached to the at least substantially coplanar first surfaces of at least some of the mounting tabs.
Method and apparatus for providing a network based surround-light environment
A method, apparatus, and user interface for providing a network based surround-light environment to dynamically drive lighting scenes are described. Location information of one or more illuminating elements relative to a display for presenting media information is determined. Lighting characteristic information for the one or more illuminating elements is determined. And a lighting profile for illuminating the one or more illuminating elements based on the location information and lighting characteristic information is determined.
Apparatus, method, and system for monitoring and maintaining light levels at target area for lighting system
A method of sensing magnitude of lumen depreciation not only of a lamp of a lighting fixture, but other factors, by sensing a relative light level external of the lighting fixture to derive not only lamp lumen depreciation but total lumen depreciation from the fixture. An apparatus of monitoring light level of one or more lighting fixtures comprises a sensor positioned external of the lighting fixture(s), a comparator adapted to compare a measured actual lumen output signal from the sensor to a pre-set reference or threshold lumen output value. An error signal is generated by the comparator if the comparison indicates actual lumen output to have dropped below the reference or threshold lumen output. An alarm or communication can be actuated by the error signal to instruct corrective action to ensure relatively constant light levels to be maintained for the lighting system over time, thus providing ongoing assurance to the end user of proper system operation.
System and method for controlling a plurality of light fixture outputs
A method of controlling a plurality of light fixtures. The method includes detecting the light outputs of a plurality of light fixtures and detecting a reflection of light from a surface. The light outputs and the reflection of light are analyzed. Differences among the light outputs of the plurality of light fixtures are determined, and a difference between the reflection of light and a desired reflection of light is determined. New or updated values for output color, output brightness, and output spectra are determined for the plurality of light fixtures such that the light outputs of the light fixtures are consistent and correspond to a desired light output, and such that the reflection of light corresponds to the desired reflection of light. Each of the plurality of light fixtures is then driven using respective light source output values to produce the desired light outputs.
Method and apparatus for controlling light levels to save energy
An occupancy sensor with integral light level sensors is configured to turn off or disable peripheral circuits and go into a periodic deep sleep mode to reduce phantom loading. Peripheral circuits include occupancy sensor circuits and relay drive circuits, but may include other circuits such as communication circuits. The sensor may be configured to periodically wake itself up, check ambient light conditions to see if lighting is below the set threshold. If it is not, the sensor goes back to sleep. If it is, then the sensor can power up the occupancy sensor circuit to see if the space is occupied; if not, it can go back to sleep. If the space is occupied, it can turn on other peripheral circuits necessary to control the load.
Method for controlling a lighting apparatus by using color coordinates
Disclosed is a method for controlling a lighting apparatus comprising a first light source unit, a second light source unit and a third light source unit, all of which emit lights having mutually different color temperatures and mutually different color coordinates, the method comprising: outputting an R component signal, a G component signal and a B component signal, each of which respectively corresponds to light quantities of an R component, a G component and a B component of lights outputted from the first light source unit, the second light source unit and the third light source unit; receiving the R component signal, the G component signal and the B component signal and generating a comparative color coordinate; and comparing the comparative color coordinate with standard color coordinates located within an area formed by the respective color coordinates of the first, the second and the third light source units, and controlling light quantities of the first, the second and the third light source units in such a manner as to reduce an error value between the standard color coordinate and the comparative color coordinate.
Adaptive energy performance monitoring and control system
A controller is configured for and a corresponding method of adaptive monitoring and control of a lighting system are suited for adaptively establishing lighting parameters on a fixture by fixture basis. The controller includes a communication interface configured to communicate with a multiplicity of light fixtures, a memory for storing software routines and information associated with each of the light fixtures; and a processor coupled to the memory and the communication interface and configured to execute the software routines and selectively communicate with at least one of the multiplicity of light fixtures to adaptively establish lighting parameters for the at least one of the multiplicity of light fixtures. A method of facilitating the monitoring and control of the light fixture includes controlling a lamp circuit to provide one of a multiplicity of light levels; assessing performance parameters of the light fixture; and communicating with a central server.
Lighting control system and method
A lighting system provides for control of the perceived color of the light emitted by the light fixture. The light fixture has two light sources, a control circuit pulses the two light sources and changes relative duty cycles of the light sources to alter a perceived color output of the lighting fixture, in response to a control signal. Duty cycles of the light sources are a function of the control signal.
Dimming system of lamp using light-emitting device
A dimming system of a lamp using a light-emitting device includes: a power source including a power input terminal, a dimmer connected to the power input terminal, and a rectifier circuit; a lighting unit including light-emitting devices from a first light-emitting device to an nth light-emitting device; a light-emitting drive unit including a plurality of switching circuits individually connected to an output terminal of each of the light-emitting devices, and dimmer control circuits connected to the switching circuits of the first light-emitting device and configured to sense whether or not a current supply channel for the first light-emitting device is normally operated, and to output a control signal; and a dimmer drive unit parallel-connected to a connection line between the power source and a power input terminal of the first light-emitting device to form a bleeding current supply channel, and having a switch.
AC-powered LED light engines, integrated circuits and illuminating apparatuses having the same
Disclosed are novel AC-powered LED light engines for Solid State Lighting (SSL) able to achieve a high PF and a low THD without a traditional PFC. Getting rid of bulky, and costly magnetic components, short-life electrolytic capacitor, and EMI-causing fast switching, the disclosed AC-powered LED light engines ushers in a cost-effective, and energy-efficient LED driver design while eliminating the short-life electrolytic capacitor in an LED driver and reducing the Total Cost of Ownership (TOC). Thanks to no bulky components, the disclosed AC-powered LED light engines in a discrete or an integrated circuit form could be applied to the increasingly popular Driver-on-Board (DoB) design. Aside from being TRIAC-dimmable via legacy phase-cut dimmers, the disclosed LED light engines could also be made PWM-, analog-, or rheostat-dimmable with the incorporation of an appropriate dimming circuit to modulate the average LED current, adding more flexibility and versatility to dimming applications.
Light emitting diode driver having cascode structure
A driver circuit for driving light emitting diodes (LEDs). The driver circuit includes: a string of LEDs divided into n groups, the n groups of LEDs being electrically connected to each other in series, a downstream end of group m−1 being electrically connected to the upstream end of group m, where m is a positive number equal to or less than n. The driver circuit also includes a power source coupled to an upstream end of group 1 and operative to provide an input voltage and a plurality of current regulating circuits, each of the current regulating circuits being coupled to the downstream end of a corresponding group at one end and coupled to a ground at the other end and including a sensor amplifier and a cascode having first and second transistors.
Light-emitting device, lighting device, display device, and method for manufacturing light-emitting device
A light-emitting device includes a light-emitting element, a phosphor layer containing a phosphor that is excited by the light emitted by the light-emitting element to emit fluorescence, a substrate with the light-emitting element and the phosphor layer on the surface, and a resin body that seals the light-emitting element and the phosphor layer. An additional member is provided on an opposite surface opposed to the light-emitting surface of the light-emitting element on the surface of the resin body. The additional member at least reflects or diffuses the light emitted by the light-emitting element and the phosphor layer.
Microwave barrier system for use in heating articles under vacuum
An optimized microwave barrier assembly suitable for use with a vacuum microwave heater. The barrier assembly is configured to allow microwaves to pass therethrough in a TMab mode, wherein a is 0 and b is an integer in the range of 1 to 5. The barrier assembly is also configured to maintain a pressure differential across a window of the barrier assembly. Such a configuration can reduce or eliminate arcing in the barrier assembly, even at low pressures.
Induction heating device and induction hob with induction heating devices
In an induction heating device having an induction coil for an induction hob, the induction coil may be of flat or planar design and have at least one peripheral coil turn comprising coil wire. The outer contour of the induction coil or the outermost coil turn may be approximately trapezoidal having two sides of equal length which are situated opposite one another and may be straight, and having two short sides of differing length between the sides of equal length.
Heater element as well as an insert for electrical furnaces
Insert for electrical furnaces comprising an insulating shell and a coiled heater element, the heater element comprising element wire that consists of at least two sections that are interconnected via a bend of element wire in such a way that the bend and the sections mutually form a loop of element wire. A fastening member is fixedly anchored in the insulating shell and arranged in the area of the bend in such a way that the element wire in a section directly connected to the bend is prevented from expanding past the fastening member.
Method and apparatus to migrate transport protocols
The invention comprises a method for migrating control plane data transport between a control node (5) and a base station (5) controlled by the control node from an old and currently used transport technology, e.g. an ATM based transport option, to a new transport technology, e.g. an IP based transport option. A protocol stack for the new transport technology is created (31) in the control node (5). In a similar manner, a protocol stack for the new transport technology is created (31) in the base station (7). Thereafter, a connection based on the new transport technology is formed (33) between the control node and the base station. Then the new transport technology is used (39) on the formed connection for at least one new control plane message between the control node to the base station. The invention comprises also a device for controlling a migration of control plane data transport between a control node and a base station in accordance with the above-described method and a control node comprising such a device.
Base station subsystem multiplexer with support for local switching
In one embodiment, a wireless system comprises a host MSC/VLR of a public land mobile network (PLMN) and a plurality of base station subsystems (BSSs). Each BSS includes a respective base station controller (BSC) and one or more base transceiver stations (BTSs). The wireless system further comprises a virtual base station controller (VBSC) communicatively coupled to the plurality of BSSs and the host MSC/VLR. The VBSC appears, from the perspective of the host MSCNLR, to be a base station controller for the BTSs in the plurality of BSSs. The VBSC and at least some of the BSSs include functionality for locally switching calls in the BSSs.
Self-configuring cellular basestation
A basestation for a cellular wireless communications network is able to configure itself for operation in the network, by selecting appropriate operating frequencies (in the case of GSM network) or scrambling codes (in the case of a UMTS network), and appropriate transmit powers. This makes it practical for a large number of such basestations to be deployed in a network, within customers' premises, without requiring network intervention in each case.
Methods and systems for multi-directional time preservation distribution in multi-communication core devices
A system and method for the distribution of time signals is available for devices with multiple communication cores. An embodiment may or may not use a centralized manager for the management of time preservation. When a communication core in a multiple communication core device requires timing information, it may request the time information from another communication core or from the centralized manager. The centralized manager, if present, can obtain time information from an external source or from one of the communication cores. The result can be reduced power consumption at a lower cost.
Link adaptation in type-II relay network
This invention is related to the link adaptation for the downlink transmission in type-II relay network. An method in an eNodeB for adapting link for downlink transmission in type-II relay network, said type-II relay network comprises the eNodeB, one or more relay nodes and a plurality of User Equipments (UE), the method comprises the steps of: classifying the plurality of UEs into two groups: macro-UEs which are served directly by the eNodeB without the help of the one or more relay nodes, and relay-UEs which are served by the eNodeB and the one or more relay nodes; and adapting link for the macro-UEs and the relay-UEs separately.
Methods and devices for interworking of wireless wide area networks and wireless local area networks or wireless personal area networks
Embodiments describe registration in a wireless communication system. A method includes wirelessly transmitting over a WWAN a first registration message from a mobile device, wirelessly transmitting through the WWAN a second registration message to a WLAN access point and receiving at the mobile device access through the WLAN access point. According to another embodiment is a method for constructing a self-configuring ad-hoc network. The method can include receiving a GPS coordinate from a WWAN channel node at a management system and creating an initial topography based at least in part on the GPS coordinate to achieve a network connectivity with diverse routes between a plurality of nodes.
Method for carrier management in a carrier aggregation environment of a mobile communication system
Disclosed is a carrier management method for use in a carrier aggregation environment of a mobile communication system. In the method, a base station is configured to transmit a deactivation message for a secondary carrier to a terminal and change the secondary carrier to a deactivation state after a predetermined time from the transmission of the deactivation message. The terminal receives the deactivation message transmitted by the base station, and changes the secondary carrier to the deactivation state after a predetermined time from the transmission of the deactivation message. As the predetermined time, a predefined value may be used to prevent inconsistency of secondary-carrier state information that is managed by the base station and the terminal. If the carrier state management information is used, it is possible to prevent inconsistency of secondary-carrier states that are managed by the base station and the terminal and solve problems due to the inconsistency.
Deactivation method of multimedia broadcast multicast service and related device
The present invention provides a deactivation method of multimedia broadcast multicast service for wireless communication system, comprising steps of: in SGSN, completing the context deactivation of user equipment of broadcast multicast service; in the user equipment, completing the context deactivation of user equipment of multimedia broadcast multicast service; in GGSN, completing the context deactivation of user equipment of multimedia broadcast multicast service; characterized by further comprising steps of: in SGSN, after completing the context deactivation of user equipment of multimedia broadcast multicast service, completing the context deactivation of user equipment of multimedia broadcast multicast service in a radio network controller of a radio access network. According to the method of the present invention, the context of user equipment of multimedia broadcast multicast service in the radio network controller is deleted, so that the waste of radio resources is prevented, the hidden troubles induced by the inconsistency of data among the network elements is removed, and a foundation for the correct realization of future products is laid.
Method and apparatus for state/mode transitioning
A user equipment implements a method of processing indication messages, such as SCRI (signalling connection release indication) messages. If upper layers indicate that there is no more packet switched data for a prolonged period, then if a count of how many indication messages have been triggered in at least one RRC (radio resource control) state is less than a maximum number, the UE increments the count, and a cause is set in the indication message, and the indication message is sent.
IP camera having repeater functions and method for setting the same
The present invention is to provide an IP camera having repeater functions, which includes an image-capturing module for capturing images, an image processor for processing the images, a central processor including a network communication module for activating the repeater functions and mediating communication between a root wireless access point (WAP) and an external device, and an antenna electrically connected to the network communication module in order for the IP camera to make wireless connection to the root WAP, upload the images to the Internet and serve as a repeater between the two WAPs, and a memory configured for storing operating software, a plurality of service set identifiers (IDs) and an authentication key. Due to the repeater functions of the IP camera, the external device can identify the IP camera by the IDs and then connect to the Internet, even if the external device is outside coverage of a wireless LAN.
Systems, apparatus, and methods for association in multi-hop networks
Systems, methods, and devices for communicating data in a wireless communications network are described herein. One innovative aspect of the present disclosure includes a method of communicating in a wireless network. The wireless network includes an access point and a relay. The method includes indicating to a client, at the relay, a network address of the access point. The method further includes receiving an association request, from the client, addressed to the access point. The method further includes forwarding the association request to the access point.
Access method and system for MTC device, and MTC device
The present invention provides an access method and a system for a Machine-Type Communication (MTC) device, and an MTC device. The method comprises the steps of: an MTC device sending, when performing channel request, a channel request cause value and a random reference value to a Base Station Subsystem (BSS) (100), and the BSS sending the received channel request cause value and random reference value back to the MTC device when completing channel allocation (101). The present invention distinguishes the MTC services from other non-MTC services through the channel request cause value, that is, when the cause values are different, the collision will not occur even if the random reference values are the same, thus reducing the probability of the random reference value collision, implementing the effective management for access operations of large numbers of MTC devices, and avoiding the influence of random reference value collision on the normal implementation of original services.
Method and arrangement for handling a scheduling request
A method in a user equipment for handling a scheduling request, SR, is provided. The user equipment is served by a base station in a cellular communications network. The user equipment receives a first message from the base station. The first message comprises a first assignment of SR resources. The first message is received using a first protocol. The first assignment of SR resources is semi-static. The user equipment further receives a second message from the base station. The second message comprising a second assignment of SR resources. The second message is received using a second protocol. The second protocol is associated with a layer that is lower than a layer associated with the first protocol. The user equipment then applies the SR resources according to the first assignment and the SR resources according to the second assignment at the same time or separately.
Prior to implementing a coexistence solution for a multi-radio device, a measurement determines whether interference experienced by one radio is caused by another radio on the device. This determination includes comparing measurements of the first radio during times when the other radio is operational and when the other radio is inactive. If the compared performance measurements are within a certain range, a coexistence/interference management solution may be implemented.
Assignment of wireless coverage areas based on media codec
A radio access network (RAN) may receive a call setup request from a wireless communication device (WCD). The call setup request may indicate that the WCD supports a first media codec. The RAN may obtain a set of candidate wireless coverage areas for serving the WCD. A first subset of the candidate wireless coverage areas may support the first media codec, and a second subset of the candidate wireless coverage areas might not support the first media codec. The RAN may assign traffic channels to the WCD, such that the assigned traffic channels include traffic channels from at least two of the first subset of the candidate wireless coverage areas, but do not include traffic channels from any of the second subset of the candidate wireless coverage areas. The RAN may communicate with the WCD substantially simultaneously via the assigned traffic channels using the first media codec.
Selecting transmission parameters for downlink transmissions based on retransmission rates
A supporting node maintains a retransmission database that stores information about the historical retransmission rates of user terminals served by the network. The supporting network node provides the information about the retransmission rates of the user terminals to the base stations that are serving the user terminals. When a user terminal is being scheduled to receive a downlink transmission, the scheduler at the base station may use historical retransmission rates of the user terminal to select transmission parameters, e.g. modulation and coding scheme (MCS) and/or transport block size (TBS), for the downlink transmission.
Radio communication apparatus and method
In a radio communication system, a downlink frequency band includes a plurality of frequency blocks including one or more carrier frequencies, and one or more frequency blocks are used for data transmission to a single user. A radio communication apparatus for use in the communication system has an evaluation unit evaluating the quality of a received signal for each frequency block and storing plurality of stored quality evaluations of the received signal, a comparison unit comparing the plural quality evaluations of the received signal, and a transmission unit transmitting a predetermined number of the quality evaluations of the received signal over an uplink control channel.
Baseband data transmission and reception in an LTE wireless base station employing periodically scanning RF beam forming techniques
The present disclosure is related to a large-scale broadband wireless network capable of providing a very high wireless data capacity, wherein one aspect of the system utilizes a periodic beam forming system. When a wireless base station cell operates a periodic beam forming system, it is necessary to locate each user served by the cell within a sub-area covered by one of the m times N RF beams generated by the system. Methods for locating users within RF beam sub-areas are disclosed herein, where a user may be scheduled for transmission or reception only when an RF beam is focused on the sub-area that covers the user location. The present disclosure pertains to the systems and methods that may be used to process transmissions of and receptions by the baseband system of an LTE wireless base station that employs a periodic beam forming RF and antenna system.
Methods and apparatus for effective allocation of adaptive resource partitioning information (ARPI) to pico enhanced node B by macro enhanced node B in heterogeneous network
Methods and apparatus for effectively allocating resource partitioning information (RPI) in a wireless communication network are provided. For certain aspects, a method for wireless communications generally includes receiving, at a first base station, such as a pico enhanced Node B (eNB), resource partitioning information (RPI) from at least one second base station, such as a macro eNB; determining one or more resources indicated in the RPI actually usable by the first base station; and sending, from the first base station to the at least one second base station, an indication of the actually usable resources.
Flexible extension of an information block
Communication systems in which a fixed size information block is transmitted to one or multiple receivers, such as the long term evolution (LTE) of the 3rd Generation Partnership Projection (3GPP), may benefit from a structure, in which a downlink control information (DCI) format, or more generally the fixed sized information block, can be extended by a small number of bits and still be backwards compatible with older terminals, which do not need the extra bits or may not even be aware of this extension. A method for providing this extension can include preparing a first codeword for transmission. The method can also include preparing a second codeword for transmission. The second codeword can have a code rate that is configured to be less than the code rate of the first codeword. The method can further include initiating simultaneous transmission of the first codeword and the second codeword.
Generating downlink frame and searching for cell
A method is provided for searching for a cell in a mobile station. The method includes receiving a downlink frame including a primary synchronization signal and a secondary synchronization signal. The secondary synchronization signal contains cell identity group information and the primary synchronization signal contains cell identity information within a cell identity group. The method also includes searching for a cell using the cell identity group information in the secondary synchronization signal and the cell identity information in the primary synchronization sign.
Broadcast teardown apparatus and method
An apparatuses and methods of tearing down a direct communication link are disclosed. In one innovation, a wireless communication apparatus for communicating with two or more communication devices includes a memory unit configured to store network information of a communication link between the apparatus and a first network communication device and store direct link information of a direct link between the apparatus and a second wireless communication device, a processor operationally coupled to the memory unit, the processor configured to retrieve the direct link information from the memory unit and determine that a direct link between the apparatus and the second device is inoperative, and further configured to generate a first frame indicating that the direct link is inoperative, and a transmitter operationally coupled to the processor, the transmitter configured to transmit the first frame for notifying at least the second device that the direct link is inoperative.
Proximity detection using an antenna and directional coupler switch
Detection of an increase in a mismatch of an antenna of a radio frequency (RF) device and/or a change in a capacitance value of the antenna indicates proximity of a body to the antenna. Upon detection of proximity of a body to the antenna, reduction of transmit power of the RF device may be done to meet Specific Absorption Rate (SAR) level regulations.
Systems and methods for synchronizing wireless audio base stations
Systems and methods for adaptive OTA (over-the-air) synchronization of RF (radio frequency) base stations are described herein. Using these systems and methods, base stations in wireless audio systems can automatically identify externally sourced base station clocks and merge overlapping clock system domains, thereby eliminating the need for complex base station management and network configuration.
Time and frequency synchronization
The scheduling flexibility of CSI reference signals enables time and frequency synchronization using multiple non-zero CSI-RSs transmitted in the same subframe, or using CSI-RSs transmitted in the same subframe with other synchronization signals. Also, multiple synchronization signals may be scheduled in the same subframe to enable fine time and frequency synchronization without cell-specific reference signals.
Methods providing aided signal synchronization and related network nodes and devices
Methods may be providing for signal synchronization at a wireless terminal communicating with a radio access network. For example, a command may be received from the radio access network, and the command may be to add a first carrier on a first frequency as a link for communications from the radio access network to the wireless terminal. Responsive to receiving the command to add the first carrier, the first carrier may be synchronized and/or configured using signals of a second carrier on a second frequency different than the first frequency. Related wireless terminals, network nodes, and network node methods are also discussed.
Method for acquiring time synchronization in a heterogeneous network and apparatus for the same
The present invention relates to a wireless communication system. More particularly, the present invention relates to a method for acquiring time synchronization in a wireless communication system, and to an apparatus for the method, wherein the method comprises the steps of: obtaining information on a discontinuous transmission pattern of a synchronous channel; attempting detection of a synchronous channel of a base station; and, if said detection fails, continuously attempting detection of the synchronous channel of the base station during a predetermined time period. If the base station is of a first type, said predetermined time period is set to be the same as or longer than the time period in which the synchronous channel is continuously not transmitted in said discontinuous transmission pattern. If the base station is of a second type, said predetermined time period is set to be the same as or longer than the time period in which the synchronous channel is continuously transmitted in said discontinuous transmission pattern.
System and method for uplink multi-antenna power control in a communications system
A system and method for uplink multi-antenna power control in a communications system are provided. A method for user equipment operations includes determining a transmit power level for transmit antennas of the user equipment having at least two transmit antennas, and setting a power amplifier output level for each of the at least two transmit antennas in accordance with a respective transmit power level.
System and method for downlink power optimization in a partitioned wireless backhaul network with out-of-neighborhood utility evaluation
A system and method for downlink power optimization in a partitioned wireless backhaul network with out-of-neighborhood utility evaluation is disclosed. The method comprises performing initial downlink power optimization for each neighborhood independently, considering only in-neighborhood utilities, by obtaining the transmit powers of all hubs and a utility performance of all served remote backhaul modules (RBMs) in the neighborhood. Power optimization data for each neighborhood are then reported to a central processing unit for storage. Thereafter, for each neighborhood, an out-of-neighborhood utility evaluation is performed by the centralized processing unit, based on reported power optimization data from other neighborhoods, for example, by obtaining delta out-of-neighborhood sum utilities for each hub as a function of hub transmit power, by curve fitting of reported data. Power optimization for each neighborhood is then performed by optimizing both in-neighborhood sum utilities and out-of-neighborhood sum utilities, and hub transmit powers are updated accordingly.
Interfaces for setup of a transport refrigeration system and providing transport refrigeration system diagnostic information to a user
The embodiments described herein are directed to setup of a transport refrigeration system and providing transport refrigeration system diagnostic information to a user. In particular, interfaces on a wireless end node and a network coordinator of a wireless communication system are configured to provide setup and diagnostic functionality of the wireless communication system to a user with limited expertise in wireless communication systems.
Wireless base station, wireless communication system, and wireless communication method
When time at present is included in a high-traffic time period, an interference determining unit (37) determines that there is a possibility that a downlink signal to be received by any wireless terminal has interference with a pilot signal transmitted from a wireless base station. A pilot signal transmission control unit (40) controls the transmission of the pilot signal, which is included in an OFDMA frame or an OFDM frame. When it is determined that there is the possibility of interference, the pilot signal transmission control unit (40) stops the transmission of the pilot signal or reduces power of the pilot signal in a whole or a portion of a user data area.
Dynamic RxDiv for idle mode in a user equipment
A method of evaluating a reception quality of a receiver includes determining a reception quality of the receiver using a measurement from a single active antenna of the receiver if the receiver is in the idle mode. The method further includes activating receiver diversity by activating at least a second antenna of the receiver in the idle mode if the measurement from the single active antenna of the receiver is below a first predetermined reception quality threshold. A receiver includes receiver chains configured to interface with respective antennas, and a reception quality estimation unit configured to determine a reception quality of a single active receive chain when the receive is in an idle mode. The receiver further includes a diversity controller configured to selectively activate at least a second receive chain in the idle mode based on the determined reception quality from the reception quality estimation unit.
Network searching method for reducing power consumption and mobile electronic device using the same
A network searching method adapted to a mobile electronic device in a no service state is provided. In the method, a first timer is activated. A network searching operation is performed. Whether an available network is found is determined. If the available network is not found, whether a time count of the first timer is smaller than a network searching active interval is determined. If the time count is not smaller than the network searching active interval, a second timer is activated. Before a network searching inactive interval set up by the second timer expires, the mobile electronic device is controlled to remain in a power save mode. If the time count is smaller than the network searching active interval, a third timer is activated. When a sleep interval set up by the third timer expires, the mobile electronic device is controlled to perform the network searching operation again.
Systems and methods for saving power in monitoring and tracking devices
This disclosure provides systems, methods and apparatus for wireless data communication. In one aspect, a device communicates with a base station. The device comprises a circuit configured to generate energy based on an environmental input. The device further comprises a storage device configured to store the energy. The device further comprises a clock circuit configured to generate a clock signal. The clock circuit is configured to power on during an active state of the device and power off during a sleep state of the device. The device further comprises a trigger circuit configured to generate a trigger signal that transitions the device into the active state when a level of the energy stored reaches a threshold value. The device further comprises a transmitter configured to transmit a message to the base station in response to generation of the trigger signal.
Radio base station, user equipment and methods therein
Embodiments herein relate to a method in a radio base station for transmitting an information signal in a radio communications network. The radio base station is arranged to operate in a time structure associated with a clock and arranged to transmit an information signal associated with the time structure. The radio base station is in the radio communications network. The radio base station transmits the information signal repeatedly with a first frequency over a first period of time. Then, the radio base station transmits the same information signal repeatedly with a second frequency over a second period of time, wherein the first frequency is lower than the second frequency and the first period of time is longer than the second period of time.
Method and system for small cell discovery in heterogeneous cellular networks
A method and user equipment in a network having a macro cell and at least one small cell, the method receiving, from a network element, a plurality of small cell measurement configurations and at least one condition for utilizing each of the plurality of small cell measurement configurations; determining whether a condition is satisfied for one of the plurality of small cell measurement configurations; and configuring small cell measurement on the user equipment based on the one of the plurality of small cell measurement configurations for which the condition is satisfied. Further, a method at the network element, the method sending, from the network element to at least one user equipment, a plurality of small cell measurement configurations and at least one condition for utilizing each of the plurality of small cell measurement configurations.
Multi-hop communication terminal, multi-hop communication system, and multi-hop communication method
In a gateway (GW), when interference is detected by an interference detection unit, a frame generation unit sends an interference broadcast signal. A terminal receives the interference broadcast signal sent at a maximum transmission power from the GW to which the terminal belongs. The interference broadcast signal includes information on a planned transmission power value that is a transmission power value of a data signal in the GW and is smaller than the maximum transmission power value. The interference broadcast signal is sent at the maximum transmission power value.
Apparatus and method for performing handover in a wireless communication network
A base transceiver station receives first and second reception power values from a plurality of user equipments. The first reception power value is a reception power value at which a user equipment receives a radio signal from another base transceiver station without using a reception beam formation function that allows a radio signal transmitted from a predetermined direction to be selectively received with increased reception sensitivity. The second reception power value is a reception power value at which a user equipment receives a radio signal from another base transceiver station using the reception beam formation function. The base transceiver station selects, from among the plurality of user equipments, a user equipment to be handed over based on the first and second reception power values, and performs handover processing on the selected user equipment.
Anticipatory hand-off setup between networks
A system and method for performing anticipatory hand-off setup between communication networks. Various aspects of the present invention may, for example and without limitation, provide a system and method for performing anticipatory hand-off setup between communication networks. For example and without limitation, prior to a determination to perform a hand-off of a mobile communication device from a first communication network to a second communication network, a determination may be made that hand-off setup information should be communicated with the second communication network. For example, such a determination may be made in anticipation of a hand-off that may or may not happen. Such hand-off setup information may then be communicated with the second communication network. Such communicated setup information may then, for example, be utilized to at least partially prepare for performing the anticipated hand-off.
Handover method of terminal, and base station thereof
A handover method of a target base station is disclosed in the present invention, including: after a source base station to which a terminal belongs transmitting a handover request message to at least one alternate target base station, every alternate target base station notifying the source base station of a load state Parameter, and the source base station determining one target base station according to the load state parameter of every alternate target base station and indicating the terminal to perform handover to the target base station. A base station is also provided in the present invention, including: a handover request transmission module, a handover request response reception module, a target base station determination module and a handover request response transmission module. The present invention avoids the re-request process of the base station when the handover request fails, and can improve the handover success ratio.
Seamless handover of a mobile station from a macro base station to a privately accessible femto base station
In an embodiment, a method is provided that includes receiving a handover request for a mobile station to be handed over to a macro base station. Identification information for the mobile station is received. The identification of the mobile station is compared with stored association information that includes identification information of a femto base station, and identification information for a particular mobile station. The method further includes identifying that the mobile station identification information matches the identification information for an associated mobile station using the stored association information. The information regarding the associated femto base station is transmitted to the associated mobile station.
Load-invariant configuration of interference measurement resources
According to one aspect of this disclosure, the configuration of which Interference Measurement Resources, “IMRs”, a given user equipment, “UE”, should measure for Channel State Information, “CSI”, reporting is made more or less invariant to dynamic traffic variations affecting the set of Coordinated Multi-Point, “CoMP”, transmission points used for serving the UE, or to the use of dynamic blanking for those transmission points. These goals are achieved at least in part by configuring one or more of the transmission points to follow a first rule embodying a negative logic. According to the first rule, the transmission point transmits on a given IMR if it has been deemed as being not likely to transmit data at a time relevant to the IMR, and, conversely, to not transmit the IMR if it has been deemed as being likely to transmit data at a time relevant to the IMR.
Enhancing packet aggregation performance in coexisting wireless networks
A wireless combination (combo) device is coupled to an antenna for communicating via a first wireless network over a first band. A packet aggregator is coupled to the first wireless transceiver configures a frame aggregated packet for at least a portion of activities on the first wireless network. The frame aggregated packet includes a plurality of data packets and a dummy packet or spoofing so that said frame aggregated packet is extended in time or indicates an extension sufficient to overlap a Tx time interval or Rx time interval for communications occurring over a second wireless network. The first wireless network and said second wireless network are overlapping networks.
Methods and arrangements for optimizing radio resource utilization at group communications
The present invention relates to methods and arrangements of optimizing radio resource utilization at a group communication for members of a specific group in a communication network system, comprising communication network nodes (15) communicating over a radio interface on downlink (12) and uplink (13) radio bearers with a plurality of user equipments (18) each of which is associated with one of said members. A shared downlink radio bearer for low priority listening members of said specific group is established. The low priority listening members are assigned to the shared downlink radio bearer.
Network congestion prevention and/or mitigation
Cell site congestion may result in dropped calls, time-outs on data sessions, web access problems, or the like. A network congestion status may be used to minimize network congestion. In an example embodiment, messages which are distributed via a network may be formatted based on the network's congestions status and a device's connection mechanism. Further, a network access may be based on the network's congestion status and on a device's connection mechanism.
Wireless end-user device with differentiated network access and access status for background and foreground device applications
A wireless end-user device has wireless wide-area network (WWAN) and wireless local-area network (WLAN) modems. One or more processors classify when an application is interacting in the device foreground with a user. For a time period when data for Internet service activities is communicated through the WWAN modem, the processors use a differential traffic control policy to selectively block and allow network access for an application based on whether the application is classified as interacting in the device foreground with a user. The processors provide a network access condition to the application through an application program interface (API), and thus can indicate that Internet data service is unavailable to that particular application based on the classification. A different policy may apply to WLAN modem usage and/or to different WWAN networks.
Method and device for sending a buffer status report
A method and device of sending Buffer Status Reports (BSRs) includes determining the type priority sequence of BSR by a user terminal, and selecting and processing one BSR based on the type priority. A user device is also provided. In the process of implementing the provided method and device, the terminal may select and process one BSR when the sum of the BSR qualified for triggering the sending and the BSR marked as pending is greater than one.
Remote access to a wireless device
In one embodiment, a mobile device is tested remotely under normal operating conditions. One or more mobile devices register with a proxy server through a registration message that includes an identification value from a mobile application running on the mobile device. A persistent connection is established with the mobile device. A testing command is sent to the mobile application. The testing command directly manipulates a user interface of the mobile application. The mobile application returns a state message that describes the state of the mobile application after the testing command has been executed.
Wireless station and transmission power determination method
A wireless station includes: a receiver configured to receive information on a reception quality from a wireless communication apparatus that is connected to the wireless station; and a processor coupled to the receiver and configured to: calculate, based on the reception quality, an index value indicating a difference between a signal-to-interference ratio in the wireless communication apparatus and transmission power of the wireless station, calculate a statistical amount of the index value calculated with regard to each of the plurality of reception qualities, and determine the transmission power in accordance with the statistical amount.
Switching matrix and test platform
A switching matrix and testing platform may enable controlled testing of various configurations of radio access networks (RANs) at various signal strengths. The switching matrix and testing platform may enable testing of the radio frequency (RF) signals from RANs or telecommunications devices for new and/or predetermined scenarios, such as using different configurations of the RANs at various signal strengths. During a scenario, various operations may be performed on the telecommunications device in communication with the tested RF signals, such as making voice calls, transmitting and receiving data (messages, videos, music, etc.). A performance of the telecommunications device and/or various telecommunication network elements may be analyzed in comparison to other telecommunications device and/or various telecommunication network elements.
Method, apparatus and system for optimizing inter-cell interference coordination
The present invention proposes a method, a radio base station and a wireless communication system for optimizing Inter-cell Interference Coordination, wherein a user equipment is communicated within a cell served by the radio base station, comprising: obtaining one or more channel conditions on the communication channel between the user equipment and the radio base station, establishing a utility function as a function of Signal to Interference-and-Noise Ratios SINRs to model the user equipment's satisfaction level in terms of quality of service and power consumption based on the obtained channel conditions, selecting a SINR that enables to maximize the value of the utility function as a target SINR, and determining a transmit power to be used by the user equipment as a function of the target SINR. Thus, a self-optimized inter-cell interference coordination (ICIC) without X2 signaling between base stations is achieved and greedy power allocation is avoid.
Uplink coverage via autonomous retransmission
A device (110) receives consecutive negative acknowledgments (NACKs) (540), measures a downlink channel quality (530) associated with the device (110), and triggers autonomous retransmission (430) when power is limited in the device (110), when the device (110) is using a minimum usable enhanced dedicated channel (E-DCH) transport format combination (ETFC), and when one of a number of consecutive NACKs (540) is greater than a predefined number or the measured downlink channel quality (530) is less than a predefined threshold.
Mitigating cross-device interference
A device in a wireless system may determine when communications of a first radio access technology (RAT) experience interference from communications of a second RAT and may alter the communications of at least the first RAT or the second RAT to reduce the interference. In some instances, altering the communications include controlling a transmission rate to the second RAT based at least on a determined channel capacity.
Wireless communications network base station extension
Apparatus and methods to permit the deployment of wireless base stations, where a deployed remote base station is backhauled to the core network over a wireless connection to an operatively attached donor base station using protocols that encapsulate backhaul communications within standard subscriber communication protocols.
Secure peer-to-peer network setup
Apparatuses for peer-to-peer network setup are presented. In one embodiment, an apparatus comprises a wireless processing unit to communicate with a master device. The wireless processing unit is operable to receive encoded data in a two-dimensional (2D) barcode. The encoded data comprise at least user information associated with the master device including a user identifier, a device identifier, or both. The encoded data further comprise network information including a network identifier, a password, and a profile lifetime value. In one embodiment, the apparatus further comprises a display unit to display at least part of the user information and the network information to a user. The wireless processing unit is operable to initiate a peer-to-peer network setup with the master device based at least on a response from the user.
Methods, systems, and computer readable media for providing a multi-network equipment identity register
Methods, systems, and computer readable media for providing a multi-network equipment identity register are disclosed. According to one aspect, the subject matter described herein includes a system for providing a multi-network equipment identity register. A node in a telecommunications network receives from a requesting entity a request to check an identity of a user equipment, the request containing the identity of the user equipment, queries an EIR using the identity of the user equipment, receives a response from the EIR, and forwards the response to the requesting entity. The node includes first and second interfaces for receiving requests to check an identity of a user equipment in a first and second protocol, respectively, such that a user equipment that is blacklisted in a network that uses the first protocol is also blacklisted in a network that uses the second protocol.
Wireless communication system, portable terminal, digital camera, communication method, and computer-readable storage device
A generation unit generates the wireless network connection setting information from the first information based on the conversion rule. The encoding unit encodes the first information to generate a code image. A display unit displays the code image. An imaging unit captures the code image. A decoding unit decodes the code image captured by the imaging unit and acquires the first information. A second storage unit stores a conversion rule that is the same as the conversion rule stored in the storage unit. A second generation unit generates the wireless network connection setting information from the first information acquired by the decoding unit based on the conversion rule stored in the second storage unit. A communication unit connects to a wireless network using the wireless network connection setting information generated by the second generation unit.
Method and system for controlling communication between an UICC and an external application
A method may be for controlling communication between a UICC, a handset including the UICC, and an external device associated with an external application running outside the handset. The method may include switching on the UICC by the handset, executing a first initialization procedure by the handset to establish a first communication session between the handset and the UICC, establishing a second communication session between the UICC and the external device, and executing a second initialization procedure between the external device and the UICC. The method may include retrieving an attribute of the handset by the UICC after completing the first initialization procedure, retrieving an attribute of the external device via the handset by the UICC after the completing the second initialization procedure, and comparing the attribute of the handset with the attribute of the external device to distinguish the second communication session from the first communication session.
Fine grain position data collection
Method, mobile device, computer program product, and apparatus for performing Fine Grain Position Data Collection are described. In one embodiment, a server can receive position data collected by a mobile device with a first positioning configuration. In one embodiment, the server can determine, from the position data received at the server, a mobile device position and create a second positioning configuration according to at least the mobile device position. In one embodiment, the server can send the second positioning configuration to the mobile device. In one embodiment, a mobile device can collect position data according to a first positioning configuration and send the position data to a server. In one embodiment, the mobile device can receive a second positioning configuration from the server created according to at least the mobile device position.
Method and device for improving network discovery and selection
The present invention provides a method for improving Network Discovery and Selection suitable for a UE which is moving into a new TA, which comprises: receiving, by a MMF, a TAU request including the new TA from the UE; allocating, by the MMF, a new TA List according to the new TA in the TAU request; sending, by the MMF, the new TA List to the UE; sending, by the MMF, a TA information to a Mobility Policy Function, MPF, for updating mobility policy of the UE if the new TA is a special TA covered by different networks.
Hybrid wireless virtualization architecture
According to one embodiment of the invention, a method for optimizing revenue for an operator of a network comprises receiving control information by a network device. The control information includes a first airtime representing an amount of airtime used for wireless data transmissions to a first group of network devices. The method further involves an operation of computing an airtime allocation for the first group of network devices based on the first airtime and lease rates. The lease rates are prices per unit of airtime to be paid by an operator associated with one or more of the network devices.
Method and system for remote wipe through voice mail
A method and system for remotely wiping a mobile device, the method receiving, at a telephonic server hosting a telephonic menu, a selection to wipe data and connections from the mobile device; and forwarding a wipe data request to a network server to send a wipe command.
Systems and methods for load balancing and virtual private networking for SMS center
The present disclosure is directed towards systems and methods for compressing messages, such as Short Message Service (SMS) or text messages between fixed or mobile devices through communications networks. The data of, for example, SMS messages is compressed and forwarded through a communication network to an appliance having a processing unit. The appliance decompresses the message and controls its delivery through network communication devices, where the decompressed SMS message is forwarded to its destination.
Method and systems to dynamically enable and control communication link optimizations on a communication device
Embodiment methods and systems include external hardware that can be fitted to a wireless communication device that stores a communication application, communication presets and/or data that are downloaded to the wireless communication device where it may be implemented to optimize group communications on the wireless devices. The wireless device may be coupled to an external case configured with a physical button that enables group communication such as push-to-talk and other push-to-experience capabilities. Optimizations for push-to-talk communication may be implemented in a push-to-talk mode in response to detecting connection to the external hardware. Signaling between the external case and the wireless device allows detection of the switch to (or from) push-to-talk mode when a user depresses (or releases) the hard key.
Requesting and providing acknowledgements to specific PTT talk spurts
The disclosure is directed to requesting and providing acknowledgements to a talk spurt in a group communication. An embodiment transmits the talk spurt to one or more recipients participating in the group communication, receives a selection of one or more target recipients among the one or more participating recipients, and transmits a request to each of the one or more target recipients to acknowledge the talk spurt. An embodiment receives, at a mobile device, a talk spurt during the group communication, receives, at the mobile device, a request to acknowledge the talk spurt, and transmits, by the mobile device, an acknowledgement (ACK) or a negative acknowledgement (NACK) in response to the request without obtaining the floor of the group communication.
Method and apparatus for creating a communication group using an address book
A method and apparatus for creating a communication group for a given type of communication using a mobile station for initiating communication sessions of the given type among mobile stations are disclosed. A group definition for determining members of the new communication group is composed from one or more contacts from the electronic address book such as by selecting from the address book using the mobile station. The group definition may include logical operators to define the combination of contacts. A name may be specified for the new group. The assembly of the list of members may be performed by the mobile station, a communication network server for maintaining groups (e.g. a Group and List Management Server (GLMS)) or an email server.
Method and apparatus for transmitting indoor context information
The subject matter disclosed herein relates to a system and method for determining indoor context information relating to a location of a mobile device. Indoor context information may be utilized by a mobile device or a network element to obtain an estimate of a location of the mobile device within an indoor environment.
Method and apparatus for providing an application engine based on real-time commute activity
An approach is provided for an application engine (e.g., a gaming engine) based on real-time location-based data. In one embodiment, an application engine determines one or more location-based data sources associated with at least one device. The one or more location-based data sources are determined in at least substantially real-time while the at least one device is engaged in at least one travel activity. The application engine then determines one or more elements of an application engine based, at least in part, on the one or more location-based data sources. The application engine causes, at least in part, the one or more elements at the least one device during the at least one travel activity. In one embodiment, the application engine also causes, at least in part, a transformation of the one or more map data elements based, at least in part, on the one or more location-based data sources.
Method for providing location service for roaming terminal
A method for providing a location service for a roaming terminal includes: receiving a start message for starting a location service from a terminal in a situation in which a session for the location service is ongoing; transmitting, by the terminal, a roaming location service start message including an indication parameter for requesting information required for an intended location measurement method and the start message to a server of a network the terminal is visiting; receiving a roaming location service start response message including a start response message and the requested information from the server; and transferring the start response message in the received location service start response message to the terminal.
Network, master, hub and method for providing a bluetooth infrastructure
An apparatus and method for providing a Bluetooth infrastructure. A master of a network for providing the Bluetooth infrastructure connects with at least one device via bidirectional Bluetooth communication. A hub of the network connects between the at least one device and the master via the bidirectional Bluetooth communication.
Method of establishing application-related communication between mobile electronic devices, mobile electronic device, non-transitory machine readable media thereof, and media sharing method
When a host mobile electronic device and a client mobile electronic device connect to each other for at least a second time, the client mobile electronic device refers to an entry corresponding to the host mobile electronic device for retrieve required information to wirelessly connect to the host mobile electronic device and to connect to an application installed on the host mobile electronic device under authentication. Therefore, the client mobile electronic device can be relieved from the burden of requesting required information for authentication repeatedly.
Pre-provisioning and de-provisioning functions for a mobile system
A provisioning server comprising at least one processor, at least one memory area, at least one communications interface for sending and receiving data, and instructions stored in the memory. The instructions, when executed by the processor, receive and store mobile device data related to at least one of a mobile device reference number and a mobile device configuration, receive and store pre-provisioning data from at least one of a customer, a buyer, an equipment manufacturer, and a wireless service provider, and store instructions related to an activation event for a mobile device, wherein the activation event occurs in response to the mobile device being powered on for the first time.
Communication device, communication control method, and communication system
Provided is a communication device within a communication network including a plurality of communication nodes, including: a reception unit that receives a data packet transmitted from a terminal device or transmitted to the terminal device; a communication control unit that selects a forwarding destination node of the data packet from a plurality of forwarding destination node candidates when the terminal device is a machine-type communication (MTC) terminal; and a transmission unit that transmits the data packet to the forwarding destination node selected by the communication control unit.
Enhancing information delivery to a called party
A facilitation and enhancement of interactions between a caller and a called party, such as a call center. The enhancement of interactions between a mobile device caller and a call center is by the communication of the mobile device caller's location and/or preferences to the call center. The communication can be in the form of a data structure stored on a computer-readable storage device, which may be transmitted from the mobile device caller to a call center controller. The data structure contains a caller identification entry, which allows the call center to match the data structure with a caller. In addition, a caller context entry associates additional data to the caller identification entry. The additional data includes at least one preference and/or location of the caller. Processor-based methods are disclosed to create, transmit, and/or utilize the data structure.
Catch the screen
The invention relates to a method and an system for displaying viewscreen information on a display in a mobile communication device, wherein the viewscreen information is related to information shown on a viewscreen, wherein the method comprise the steps of determining a direction to the viewscreen from the mobile communication device, communicating the determined direction to a server, determining, in the server, viewscreen information based on the direction to the viewscreen, wherein the viewscreen information is related to information displayed on the viewscreen, receiving viewscreen information from the server in the mobile communication device and displaying the viewscreen information on the display in the mobile communication device.
Systems and methods for providing audio to a user based on gaze input
According to the invention, a method for providing audio to a user is disclosed. The method may include determining, with an eye tracking device, a gaze point of a user on a display. The method may also include causing, with a computer system, an audio device to produce audio to the user, where content of the audio may be based at least in part on the gaze point of the user on the display.
Determination of ambient sound processed audio information
A method comprising receiving an indication of an input indicative of the user not facing the apparatus, determining an ambient sound non-limitation directive associated with the audio uplink based, at least in part, on the input, receiving other audio information, determining ambient sound non-limited audio information based, at least in part, on the other audio information, and causing transmission of the ambient sound non-limited audio information by way of the audio uplink is disclosed.
Provided is an electronic device including: a piezoelectric element; a vibration plate to which the piezoelectric element is joined for vibration; and a housing to which the vibration plate is joined. Vibration sound, which is transmitted by vibrating a part of a human body, is generated by the vibration plate. The vibration plate includes, in a plan view thereof, a first area including a joining portion with the piezoelectric element and a second area located further away from the joining portion than the first area is, and rigidity in a first area is lower than rigidity in the second area. With the above configuration, sound leakage or the like is reduced, and usability of the electronic device is improved.
Apparatus, systems and methods for inaudibly identifying an audio accessory using spectral shaping
A method for identifying an accessory coupled to an electronic device. The method includes applying at least one detection pulse to the audio accessory, each detection pulse being spectrally shaped to be generally inaudible to a human user, receiving at least one response signal corresponding to each detection pulse that is indicative of the impedance of the accessory, and based on the impedance, identifying the accessory.
User designed active noise cancellation (ANC) controller for headphones
Embodiments are directed towards enabling headphones to perform active noise cancellation for a particular user. Each separate user may enable individualized noise canceling headphones for one or more noise environments. When the user is wearing the headphones in a quiet environment, a user may employ a computer to initiate determination of a plant model of each ear cup specific to the user. When the user is wearing the headphones in a target noise environment, the user may utilize the computer to initiate determination of operating parameters of a controller for each ear cup of the headphones. The computer may provide the operating parameters of each controller to the headphones. And the operation of each controller may be updated based on the determined operating parameters. The updated headphones may be utilized by the user to provide active noise cancellation.
Apparatus and method for spatially selective sound acquisition by acoustic triangulation
An apparatus for capturing audio information from a target location includes first and second beamformers arranged in a recording environment and having first and second recording characteristics, respectively, and a signal generator. The first and second beamformers are configured for recording first and second beamformer audio signals, respectively, when they are directed towards the target location with respect to the first and second recording characteristics. The first and second beamformers are arranged such that first and second virtual straight lines, defined to pass through the first and second beamformers, respectively, and the target location, are not mutually parallel. The signal generator is configured to generate an audio output signal based on the first and second beamformer audio signals so that the audio output signal reflects relatively more audio information from the target location compared to the audio information from the target location in the first and second beamformer audio signals.
Wireless headband audio player
Example embodiments provide a headgear including an audio player. The headgear includes a slap-on-band configured to coil around a head of a user, having an elongated state and a coiled state, and the slap-on-band being covered by a fabric cover. The headgear further includes an audio player disposed on the slap-on-band, and a pair of earphones electrically connected to the audio player to generate sound.
Isolation of audio transducer
A head-mounted wearable device assembly is provided that includes a bone conduction transducer (BCT) and an elastomeric isolation member that provides acoustic isolation between the BCT and a housing of the head-mounted wearable device assembly. The elastomeric isolation member may be a polyurethane material having a hardness (durometer) on the order of 60 A. The material arrangement and durometer may be chosen to provide a frequency response and/or acoustic leakage within a predetermined range, which results in high quality sound reproduction for the wearer. The elastomeric isolation member may be secured to an interior portion of the housing by a pair of mounting posts. The elastomeric isolation member physically and acoustically separates the BCT from the interior of the housing and other components therein.
Data cross-connect system and method
The present invention provides a data cross-connect system and method. The data cross-connect system comprises: at least two first stage cross-connect modules, at least one second stage cross-connect module and at least one third stage cross-connect module; the first stage cross-connect module comprises: a first stage cross-connect sub-module, a signal packaging sub-module, a first information generation sub-module and at least one transmitter. The present invention allows high rate interconnection between subracks, therefore the number of interconnecting optical fibers and connectors of the optical fibers can be reduced; in addition, the second stage cross-connect module applies cross-connecting directly in the optical layer, hence the number of cross-connect subracks can be reduced and the size and power consumption of the cross-connect subracks can also be reduced.
Apparatus for transferring data between bodies undergoing rotation
An apparatus for transferring data between bodies undergoing rotation is provided. The bodies in question may be wind turbine components such as a turbine drive shaft and a stationary part of the turbine, such as nacelle gearbox. A data or control signal can therefore be transmitted between a rotating member, such as a turbine blade, and equipment in the nacelle. The apparatus comprises two members that are placed adjacent and opposing one another, and on the opposing surface of which a number of electrical paths are provided. The closed electrical paths do not enclose the rotational axis. At least one of the loops is energized with a carrier high frequency oscillating signal to create a flux that threads the loop on the opposing member. Modulation of the carrier frequency allows signals to be transmitted between the members.
Device and method for quality assessment of encrypted streaming media flows
A device, computer program product and a method, the method may include: extracting a first size information about sizes of different frames of a first segment of an encrypted first streaming media flow that has a first constant bit rate (CBR); extracting second size information about sizes of different frames of a second segment of a second streaming media flow that has a second CBR; and determining a relationship between qualities of the first and second streaming media flows based on the first and second size information; wherein the extracting of the first and second size information and the determining of the relationship are executed without decrypting the first and second encrypted streaming media flows.
Dynamic determination of presentation of multiple video cells in an on-screen display
A mosaic video channel displayed on a monitor, with a plurality of individual video feeds being presented at a given time. A mosaic video channel in accordance with the present invention comprises a plurality of video cells presenting at least video information, each video cell associated with one of the plurality of individual video feeds, a cursor, which can be moved between the plurality of video cells, for selecting at least one characteristic associated with a selected video cell, such that the user can then directly select a video program associated with the selected video cell, and a receiver, coupled to the monitor and receiving the plurality of video feeds and mosaic video channel, wherein a blackout criteria is dynamically programmed into the receiver such that when at least one of the video cells is selected by the cursor, the receiver tunes to a channel other than the individual video feed associated with that video cell.
Preview and playback method of video streams and system thereof
A preview and playback method of video streams is provided for a video playback device having network function. The method includes defining a virtual channel and a preview channel corresponding to the virtual channel. A video stream list of the virtual channel is established for linking a plurality of video streams. A preview list is established and description information of each of the preview data corresponding to the video streams is recorded in the preview list. When the video playback device receives a preview channel selection instruction, the preview data is obtained automatically and played continuously. When the video playback device receives a preview data selection instruction, the video stream corresponding to the preview data being selected is recognized as a selected video stream. The preview channel is switched to the virtual channel, and the selected video stream is obtained from a video stream service and played automatically.
Customized content calendar
A customized content calendar may include reminders or invitations to access particular media content, where the reminders or invitations may be pushed to the content calendar based on user-specific preferences.
Conducting transactions between a vendor and a customer using text messages
The illustrative embodiments described herein provide systems and methods for conducting transactions with a customer using text messages. In one embodiment, a method includes receiving a first text message from a mobile communication device associated with a customer. The first text message includes a request from the customer to receive one or more text messages from a vendor. The method also includes adding the customer to a set of consenting customers in a customer database in response to receiving the first text message. The set of consenting customer including customers that consent to receiving text messages from the vendor. The method also includes sending a second text message to the mobile communication device. The second text message is associated with a service offered by the vendor.
Systems and methods for securely place shifting media content
Systems and methods are provided for securely providing a place-shifted media stream from a place shifting device to a remote player via a communications network. A request for a connection is received from the remote player at the place shifting device via the communications network. In response to the request for the connection, an authorization credential is requested from a central server via the communications network. Further, in response to the authorization credential received from the central server, the place-shifted media stream between the place shifting device and the remote player can be established over the communications network. At least a portion of the place-shifted media stream may be encrypted based upon the authorization credential.
Script-based video rendering using alpha-blended images
Systems and methods are provided for cross-platform rendering of video content on a user-computing platform that is one type of a plurality of different user-computing platform types. A script is transmitted to the user-computing platform and is interpreted by an application program compiled to operate on any one of the plurality of user-computing platform types. Transmitting the script causes the script to be interpreted by the application program operating on the user-computing platform to cause the interpreted script to directly decode encoded video data transmitted or otherwise accessible to the user-computing platform into decoded video data and to further cause the rendering of the decoded video data.
Method and device for transmitting decryption codes of freely transmitted, encrypted program contents to clearly identifiable receivers
The invention relates to a method and to a device for transmitting decryption codes for freely transmitted, encrypted program contents, enabling decryption codes to be transmitted in a more simple manner and enabling a connection or a user to be established via a user network, also enabling the reception of a telephone call, identification of the network termination element, especially the telephone number, and transmission of the decryption code for a program content. Billing data can be automatically established using the network termination element/the telephone number and information on the requested program content. Additionally or alternatively, examination is possible if a registered right of access for the decryption code exists for the network termination element/telephone number, whereby transmission occurs exclusively for the existing right of access. The invention also relates to a system for decrypting freely transmitted, encrypted program contents.
Methods and apparatus for providing media on mobile devices
Techniques and mechanisms are provided for sending targeted content and data to mobile devices. Location information associated with a device is determined. In some instances, the location information is manually entered. In other instances, the location information is determined automatically from characteristics associated with the device. Location information can be obtained from global positioning system (GPS) data, cell-site triangulation, Internet Protocol (IP) address detection, etc. Content and advertising can be provided in a location relevant manner to the mobile device.
Method and system for adaptive transcoding and transrating in a video network
A video server adaptively selects an appropriate video encoding standard and an appropriate video encoding rate for encoding video content to be downloaded to one or more video client devices over a communication network. The video server adaptively selects the video encoding standard and the video encoding rate based upon factors such as the data transmission rate of the communication network, the processing speed of the video client device, or the type of the video content to be downloaded. Once the video encoding standard and the video encoding rate are selected, video content can be transcoded prior to downloading to one or more video client devices. During the download, the video content may be adaptively transrated, such as in response to a change in the data transmission rate of the communication network.
System and method for providing cloud game service
A cloud game service providing apparatus includes an input reception unit configured to receive an input signal from a device from among at least one user device; a game execution unit configured to execute a cloud game in response to the received input signal; and a virtual graphic processing unit configured to encode a frame of the executed cloud game by using a virtual graphic resource, and to provide the encoded frame of the executed cloud game to the user device.
Device associated with a user account
A system and method for distributing digital media assets to a plurality of users. A portal is provided comprising at least one server computer. The portal executes a media library database server application that manages access a master library of media 5 assets that can be accessed by users via one or more communication networks. A plurality of media player devices communicate with the portal to access media assets for use. Each media player device may comprise a processor that executes a database client application that manages media assets licensed for use by a user.
Multi-channel MPEG between headend and fiber node
A system and related methodology are provided that are configured to receive, at a first network element, multiple channels of video delivered as respective streams of packets, form a packet switched communication frame including a sub-layer header, encapsulate packets from the multiple channels of video into a payload field of the communication frame to obtain encapsulated packets, identify the encapsulated packets in the payload field with respective tags in the sub-layer header, designate the encapsulated packets in the payload field with respective launch values in the sub-layer header, and transmit the communication frame to a second network element. The first network element may be a universal edge quadrature amplitude modulator (UEQAM) and the second network element may be a relatively distant fiber node of a cable plant. The sub-layer header may also include Program Clock Reference (PCR) offset data that can be used for PCR re-stamping.
Registration of a personal electronic device (PED) with an aircraft IFE system using PED generated registration token images and associated methods
An aircraft communications system includes at least one personal electronic device (PED) carried by an aircraft passenger, and an aircraft in-flight entertainment (IFE) system. The PED includes a PED display, a PED wireless transceiver, and a PED controller for generating a respective registration token image on the PED display. The aircraft IFE system includes an IFE video entertainment source, IFE passenger seat displays, a respective IFE optical sensor associated with each of the IFE passenger seat displays, an IFE wireless transceiver, and an IFE controller. The IFE controller is for selectively displaying video from the IFE entertainment source on the IFE passenger seat displays, and for communicating with the PED wireless transceiver via the IFE wireless transceiver based upon a respective IFE optical sensor sensing the registration token image on the PED display.
A video coding method includes for each target image portion to be encoded, selecting a preferred one of a set of encoding modes by optimizing a function comprising an estimate of distortion and a measure of bit rate required to encode the target image portion, the encoding modes comprising at least an intra frame mode and an inter frame mode; and transmitting the encoded video stream over a lossy channel. The estimate of distortion is based on a contribution from possible new loss over the channel comprising possible loss of the target block, and on a contribution from possible past loss over the channel comprising possible loss in a history of the encoded video stream upon which decoding of the target portion depends. The method includes accumulating the contribution from past loss over time, such that the estimate of distortion grows irrespective of the contribution from new loss.
Method of image coding chrominance signal and method of image decoding chrominance signal
An image coding method includes: generating a temporarily coded chrominance signal from the coded residual signal and the intra prediction chrominance signal; calculating a direct-current component of the input chrominance signal; calculating a direct-current component of the temporarily coded chrominance signal; calculating an offset value from the direct-current component of the input chrominance signal and the direct-current component of the temporarily coded chrominance signal; coding quantized coefficients, an intra prediction mode, and the offset value; and adding the offset value to the temporarily coded chrominance signal to generate a coded chrominance signal.
Method and apparatus for parallel H.264 in-loop de-blocking filter implementation
Compared to the related art, where the time distance in horizontal direction is 2 Synchronization Intervals (SI) between 2 Processing Units which are processing neighboring MB rows, the current invention enables to reduce the distance from 2 SIs to 1 SI, which increases the start-up phase performance. This is reached by dividing the filter task into sub tasks and reordering the execution order of these sub tasks. The sub tasks include a vertical edge filter task and a horizontal edge filter task. Further, the synchronization is scheduled in between the vertical edge filter task and the horizontal edge filter task.
Fragmented parameter set for video coding
A video encoder generates a first network abstraction layer (NAL) unit. The first NAL unit contains a first fragment of a parameter set associated with video data. The video encoder also generates a second NAL unit. The second NAL unit contains a second fragment of the parameter set. A video decoder may receive a bitstream that includes the first and second NAL units. The video decoder decodes, based at least in part on the parameter set, one or more coded pictures of the video data.
Method and apparatus for encoding and decoding image
An apparatus and method for encoding and decoding an image are provided. The image decoding method includes decoding luma blocks according to a predetermined decoding mode of each of the luma blocks, and decoding chroma blocks according to the predetermined decoding mode of each of the luma blocks.
Method, apparatus and computer program product for image motion prediction
A video processing system, method and computer program storage device cooperate to provide a resource and performance efficient sub-pixel motion search operation. Using on the fly calculations it is possible to provide approximations of sub-pixel positions on one image with respect to another image in an image sequence. A sub-pixel position used to set a motion vector for an encoding process may then be identified with reduced processing and memory resources relative to conventional techniques. Also, by later performing a full encoding cost analysis on the earlier identified sub-pixel position, and keeping track of differences, an interpolation accuracy may be dynamically improved by applying the differences to subsequent image frames.
Picture encoding and decoding
Video is encoded by applying a vertically and horizontally separable transform to provide a block of transform coefficients; and quantizing the transform coefficients. Prior to quantization, a filtering operation is performed on the block of transform coefficients, the filtering operation applying a rotation to pairs of coefficients in the block. Each pair of coefficients may be symmetrically positioned with respect to the leading diagonal of the block.
Quantization matrix compression in video coding
A method of quantization matrix compression in a video encoder is provided that includes preprocessing a quantization matrix by performing at least one selected from down-sampling the quantization matrix and imposing 135 degree symmetry on the quantization matrix, performing zigzag scanning on the pre-processed quantization matrix to generate a one dimensional (1D) sequence, predicting the 1D sequence to generate a residual 1D sequence, and coding the residual 1D sequence using kth order exp-Golomb coding to generate a compressed quantization matrix, wherein k≧0.
COFDM broadcast systems employing turbo coding
Turbo-coded data are transmitted using quadrature amplitude modulation (QAM) of COFDM carrier waves in digital television (DTV) broadcast systems. The QAM symbol constellations map the parity bits of the turbo coded data so as to be de-mapped with higher confidence levels than the data bits, facilitating turbo decoding. A preferred DTV receiver delays the first transmissions of time-slices of a service selected for iterative-diversity reception to concur with second transmissions of those time-slices. The complex coordinates of QAM constellations in the delayed first transmission and the second transmission of the same time-slice are combined by a maximal-ratio QAM combiner after COFDM demodulation, but before de-mapping QAM constellations and turbo decoding. In a less-preferred DTV receiver, QAM constellations in the delayed first transmission of each time-slice and in the second transmission of the same time-slice are de-mapped separately. A maximal-ratio code combiner then combines de-mapping results before turbo decoding.
Indicating bit stream subsets
A method of indicating bit stream subsets in a video bit stream (210) is provided. The method comprises receiving the bit stream, dividing the bit stream into video packets (211-216), wherein each packet comprises either one of video data or supplemental information, and marking each packet with a single subset identifier (stream_id). Each subset identifier is associated with a corresponding bit stream subset (221-223). Further, a method of extracting video packets from a video bit stream is provided. The method comprises providing relevant subset identifiers, receiving video packets from the bit stream, and, for each received packet, inspecting the subset identifier of the packet. The packet is extracted if the subset identifier matches one of the relevant subset identifiers. This allows condensing properties of a bit stream subset into a single identifier, thereby simplifying the processing of video packets in the network and on the client side. Further, devices corresponding to the aforementioned methods are provided.
Methods and apparatus for multi-view video coding
There are provided methods and apparatus for multi-view video coding. A video encoder includes an encoder for encoding a block in a picture by choosing between temporal prediction and cross-view prediction to enable a prediction for the block. The picture is one of a set of pictures corresponding to multi-view video content and having different view points with respect to a same or similar scene. The picture represents one of the different view points. A high-level syntax is used to indicate the use of cross-view prediction for the block.
Weighted prediction parameter coding
The techniques are generally related to the coding of weighted prediction parameters. A video coder may determine the weighted prediction parameters for a reference picture list based on coded weighted prediction parameters for another reference picture list. Examples of the reference picture list include reference picture lists constructed for coding purposes, including a combined reference picture list.
Low complex deblocking filter decisions
The present disclosure relates to deblocking filtering, which may be advantageously applied for block-wise encoding and decoding of images or video signals. In particular, the present disclosure relates to an improved memory management in an automated decision on whether to apply or skip deblocking filtering for a block and to selection of the deblocking filter. The decision is performed on the basis of a segmentation of blocks in such a manner that memory usage is optimized. Preferably, the selection of appropriate deblocking filters is improved so as to reduce computational expense.
Method and apparatus for television band pilot sensing
A DTV pilot sensor generates DTV pilot tone detection decisions associated with monitored television band channels without knowledge or estimation of a noise level of the monitored channel.
Video signal fault detection system capable of inference of abnormal components
A video signal fault detection system includes a front-end device and a back-end device. The back-end device includes: a quality evaluation unit generating a quality evaluation result associated with successive image frames captured by an image capturing device of the front-end device and transmitted through a transmission channel; a recognition unit generating, based on the quality evaluation result, a recognition output indicating a non-corruption condition or a corruption type of each transmitted image frame; and an inference unit inferring, based on a predetermined lookup table and a determination output generated based on the recognition output, whether each of the transmission channel and the image capturing device is normal or not.
3-D luminous pixel arrays, 3-D luminous pixel array control systems and methods of controlling 3-D luminous pixel arrays
Luminous pixel array. Each pixel in the array is formed by a luminous flying vehicle. A plurality of luminous flying vehicles are controlled to move in three-dimensional space so as to crate two-dimensional and three-dimensional shapes that can move in space. In one embodiment images are formed.
Image processing device, image processing method and storage medium
An image processing device includes: a size acquisition section that acquires a first display size of an output target display device that performs 3D display; a storage section that stores respective parallax amounts adjusted by a user during performing 3D display of 3D display image data respectively on display devices of different types, and stores respective second display sizes of the display devices; a parallax amount computation section that computes a parallax amount for the first display size based on a relationship between the parallax amounts and the second display sizes stored in the storage section; and an output section that outputs to the output target display device the computed parallax amount and the 3D display image data.
Imaging apparatus, imaging method, and computer-readable recording medium
An imaging apparatus includes: a face detector that detects a face of a subject from images captured by an imaging unit; a display controller that causes a display unit to display a guide image for prompting the subject to change a direction of the face; an angle calculation unit that calculates an angle of turn of the face of the subject from a reference position of the direction of the face when the guide image is displayed, based on pieces of image data before and after a change in the direction of the face; a distance calculation unit that calculates a distance between the imaging apparatus and the face based on the calculated angle; and an image processing unit that performs image processing on at least one of the pieces of image data, according to the change in the direction of the face, based on the angle and the distance.
Solid-state imaging device
A color filter array has G filters, R filters, and B filters. A pair of phase difference pixels adjoining in a horizontal direction is provided with one of the G, R, and B filters. In the color filter array, a fundamental array pattern, including the G, R, and B filters, is repeatedly disposed in horizontal and vertical directions. The G filters, which most greatly contributes to obtainment of luminance information, are disposed in every line extending in the horizontal direction, the vertical direction, and slanting directions. Both of the R filters and the B filters are disposed in every line extending in the slanting directions. The number of the G filters is larger than that of the R filters or the B filters.
Systems and methods for modifying stereoscopic images
Various embodiments are disclosed for modifying stereoscopic images. One embodiment is a method implemented in an image processing device for modifying stereoscopic images. The method comprises retrieving, by an image processing device, a stereoscopic image having at least a first view image and a second view image and retrieving an orientation selection relating to the stereoscopic image, the orientation selection comprising a selection other than one of: a horizontal flip selection and a 180 degree rotation selection. The method further comprises calculating a depth map according to at least part of the stereoscopic image, rotating the first view image based on the orientation selection to obtain a rotated first view image, and generating a new second view image according to the depth map and the rotated first view image.
3D image display apparatus and control method for same
A 3D image display has a display unit which is driven so as to emit light in a line-sequential or a block-sequential manner; a storage unit which stores characteristics information relating to temporal change in transmittance of a liquid crystal shutter glasses with respect to light of respective primary colors in the display unit; and a correction unit which corrects an input image signal of the respective primary colors using the characteristics information, so as to reduce color fluctuation between lines or between blocks in the observed image caused by differences in the temporal change of the transmittance of the liquid crystal shutter glasses in respect of each of the primary colors, wherein the display unit displays a corrected image based on a corrected image signal generated by the correction unit.
Method and electronic system for playing videos
A method for playing videos, applied to an electronic system, is provided. A video is played through a player application program, and a playing status stored in an embedded control random access memory of a keyboard controller of the electronic system is set to a first status when the video is played. Then, all light signals of the electronic system are turned off by the keyboard controller according to the first status.
Apparatus and method for processing media in convergence media service platform
Disclosed herein are an apparatus and method for processing media in a convergence media service platform. The apparatus includes a media-based sensory effect (MSE) processing unit, an AV processing unit, a sensory effect processing unit, and a media creation unit. The MSE processing unit extracts one or more sensory effects from Audio/Video (AV) media. The AV processing unit separates AV media into an audio and a video, and decodes the AV media based on media format. The sensory effect processing unit adds the extracted sensory effects in synchronization with the waveform of the separate audio, and edits the attributes of the added sensory effects. The media creation unit creates convergence media by adding the added sensory effects to the AV media.
Imaging system with a single color image sensor for simultaneous fluorescence and color video endoscopy
An endoscopic video system and method using a camera with a single color image sensor, for example a CCD color image sensor, for fluorescence and color imaging and for simultaneously displaying the images acquired in these imaging modes at video rates in real time is disclosed. The tissue under investigation is illuminated continuously with fluorescence excitation light and is further illuminated periodically using visible light outside of the fluorescence excitation wavelength range. The illumination sources may be conventional lamps using filters and shutters, or may include light-emitting diodes mounted at the distal tip of the endoscope.
Electro-scan integration into video pipe inspection vehicle
A camera based sewer evaluation vehicle has an electro-scan pipe defect detection system integrated therein. A cable and winch of the camera based system are utilized to support either a camera or an electro-scan probe. A signal transmitted through the cable is passed along for processing of signals received through the cable for final output and analysis, such as on a common computer. To facilitate electro-scan probe based pipe defect detection, a ground rod is utilized. The system can include a funnel plug downstream of the electro-scan probe for interconnection to a haul line and to assist in maintaining a liquid filled status in the pipe adjacent the electro-scan probe. A downstream bypass funnel plug or a blockade of some form can operate within and past a downstream manhole adjacent the pipe to keep the pipe filled with liquid.
Video analytics with burst-like transmission of video data
A method for providing video data for video analytics processing includes capturing a plurality of individual frames of video data, using a video source that is disposed at an acquisition end. A plurality of data-frame-groups is formed, each data-frame-group being associated with a different time period of a plurality of consecutive and non-overlapping time periods. A data-frame-group that is associated with a specific time period comprises individual frames of video data that are captured during that specific time period. Additionally, each data-frame-group comprises relatively fewer individual frames of video data than are captured during the specific time period associated therewith. The plurality of data-frame-groups is transmitted from the acquisition end to a remotely located server via an IP network. In particular, the transmission of successive data-frame-groups is separated one from the other by an interval of time.
Aircraft IFE system interfacing with a personal electronic device (PED) for redeeming an in-flight coupon and associated methods
A communications system for an aircraft includes at least one personal electronic device (PED) carried by an aircraft passenger, and an aircraft IFE system. The PED includes a PED display, a PED memory for storing an in-flight coupon to be redeemed by the passenger while in-flight, and a PED controller for displaying the stored in-flight coupon on the PED display. The in-flight coupon has an in-flight coupon token image associated therewith. The aircraft IFE system includes an IFE video entertainment source, IFE passenger seat displays, a respective IFE optical sensor associated with each IFE passenger seat display, and an IFE controller. The IFE controller selectively displays video from the IFE entertainment source on the IFE passenger seat displays, and receives the stored coupon for redemption based upon a respective IFE optical sensor sensing the displayed in-flight coupon token image associated therewith on the PED display.
Systems and methods for managing local storage of on-demand content
On-demand systems and methods are provided to manage locally-stored on-demand content. A user's equipment controls the deletion of and/or access to on-demand content from a local storage device based on constraining criteria that may include rental conditions, dynamic factors, and keys.
Mobile video device for use with layered video coding and methods for use therewith
A mobile video device includes a transceiver module that receives an independent video layer stream and at least one dependent video layer streams that require the independent video layer for decoding. A decoder module produces a decoded video signal from at least one separate video stream chosen, based on the device parameter, from the independent video layer stream and at least one dependent video layer streams.
Information processing apparatus, transmission system and program
An information processing apparatus, communicatively connectable to a first transmission terminal, and communicatively connectable with a second transmission terminal via a network and to a first display device, includes a display control unit that displays a region in a screen of a second display device; a bandwidth determination unit that determines whether bandwidth for communication between the transmission terminals is less than or equal to a predetermined threshold; an acquisition region reception unit that receives a selection for selecting at least one of first display data displayed in an entire region of the screen and second display data displayed in an active region in the screen, according to the determination; a resolution conversion unit that converts a resolution of the selected display data based on resolutions of the first and second display devices; and a display data transmission unit that transmits the display data to the first transmission terminal.
Systems and methods for real-time virtual-reality immersive multimedia communications
A new approach is proposed that contemplates systems and methods to support the operation of a Virtual Media Room or Virtual Meeting Room (VMR), wherein each VMR can accept from a plurality of participants at different geographic locations a variety of video conferencing feeds of audio and video streams from video conference endpoints. The approach further utilizes virtual reality and augmented-reality techniques to transform the video and audio streams from the participants in various customizable ways to achieve a rich set of user experiences. A globally distributed infrastructure supports the sharing of the event among the participants at geographically distributed locations through a plurality of MCUs (Multipoint Control Unit), each configured to process the plurality of audio and video streams from the plurality of video conference endpoints in real time.
User interface control in a multimedia conference system
A device for use in a multimedia conferencing system comprises an audio analysis processor (340), a session type classification processor (310) and a user interface controller (300). The audio analysis processor (340) is configured to analyze audio data of a communication session with multiple participating endpoints. The session type classification processor (310) is configured to determine a type of the communication session on the basis of the analysis of the audio data. The user interface controller (300) is configured to control a representation of the endpoints in a user interface on the basis of the determined type of the communication session, e.g., by sending control data (CD) to the endpoints.
Telepresence portal system
Embodiments of the present invention disclose a telepresence portal system. According to one embodiment, the telepresence portal system includes a host portal having a plurality of host transparent displays arranged to face different sides of a host user. Furthermore, each host transparent display is associated with an image capturing device for capturing different viewpoint images of the host user. A remote portal is in communication with the host portal and includes a plurality of remote transparent displays arranged to correspond with the positions of the host transparent displays. In addition, each remote transparent display renders a viewpoint image of the host user on the corresponding remote transparent display for view by at least one remote user.
Content preparation systems and methods for interactive video systems
Content preparation systems and methods are disclosed that generate scenes used by an interactive role performance system for inserting a user image as a character in the scene. Original media content from a variety of sources, such as movies, television, and commercials, can provide participants with a wide variety of scenes and roles. In some examples, the content preparation system removes an original character from the selected media content and recreates the background to enable an image of a user to be inserted therein. By recreating the background after removing the character, the user is given greater freedom to perform, as the image of the user can perform anywhere within the scene. Moreover, systems and methods can generate and store metadata associated with the modified media content that facilitates the combining of the modified media content and the user image to replace the removed character image.
Ad converter and solid-state imaging apparatus using the same
There is a need to provide an AD converter capable of reducing occurrence of a noise. An AD converter includes an operational amplifier and a clip circuit. The operational amplifier receives ramp voltage and voltage for an analog signal and allows output terminal voltage to transition from an H level to an L level when a change in the ramp voltage reaches the voltage for the analog signal. The clip circuit fixes an output terminal of the operational amplifier to clipping voltage after output voltage for the operational amplifier reaches threshold voltage for a latch circuit. Therefore, the AD converter can limit a range of output voltage, as a source of noise, for the operational amplifier and eliminate an unnecessary change in the output voltage after the threshold voltage for the latch circuit is reached.
Solid state imaging device, driving method of solid state imaging device, and electronic device having a driving unit so that a potential of a drain of a charge reset unit is controlled
There is provided a solid state imaging device including a photoelectric conversion unit that performs photoelectric conversion of converting incident light into charges and accumulates the charges, a charge-voltage conversion unit that converts the charges which have been subjected to the photoelectric conversion by the photoelectric conversion unit into a voltage, a charge transfer unit that transfers charges to the charge-voltage conversion unit, a charge reset unit that resets charges of the charge-voltage conversion unit, and a driving unit that performs driving such that a potential of a drain of the charge reset unit is controlled so that the charges are accumulated in the photoelectric conversion unit and the charge-voltage conversion unit up to a saturation level, and then the photoelectric conversion unit is subject to light exposure.
Imaging system utilizing spatial image oscillation
An imaging system includes an image detector for producing a continuous image signal from an image received thereat; oscillation means coupled to the image detector for inducing a spatial oscillation in the image relative to the image detector; and a spatio-temporally matching filter in communication with the image detector and the oscillation means. The matching filter is configured to filter out aspects of the image signal not associated with the induced oscillation, to thereby provide enhanced image processing of the image.
Lens-free planar imager using an optical resonator
Techniques for lens-free imaging using optical resonance, including providing a series of standing waves indexed by a wave vector to an optical resonator having a predetermined dispersion relation. The intensity of the wavelengths corresponding to the standing waves can be measured with a photodetector. A magnitude and shift of the wave vector corresponding to each of the standing waves can be determined, and spatial information in k-space can be determined from the magnitude and shift of the wave vector corresponding to each of the standing waves using an inversion relationship. A transform can be applied to the spatial information to generate an image.
Systems and methods for lens characterization
Methods and systems for analyzing camera lenses and presenting information regarding camera lenses performance are described. An interactive user interface is provided over a network for display on a user terminal by a computer system. A user request is received at the computer system from the user terminal for lens data from a first lens. Lens data, including test data obtained via a first digital image captured using the first lens at the first focal length setting and the first aperture setting is accessed from memory and transmitted to interactive user interface. The interactive user interface is configured to display an identification of the first camera body, an identification of the first lens, the first focal length setting used to capture the image, and the first aperture setting used to capture the image. Using the lens test data, the interactive user interface generates and displays sharpness graph data.
Systems and methods for imaging objects
Systems and methods for imaging objects are provided. An imaging device includes a sensor to provide an image of an object. The sensor can have a sensor exposure time and a sensor gain and the image includes a plurality of frames, each of the plurality of frames that can depict at least a portion of the object. The imaging device includes a motion detector to determine whether there is movement of the at least a portion of the object between adjacent frames of the plurality of frames. The imaging device also includes a controller. The controller can set the sensor exposure time to a first value in response to a determination by the motion detector that there is movement of the at least a portion of the object between adjacent frames. The controller can also set the sensor exposure time to a second value in response to a determination that there is no movement of the at least a portion of the object between adjacent frames. The controller can also adjust the sensor exposure time, the sensor gain, or both to maintain a luminance value of the plurality of frames at a target luminance value.
Optical image stabilizer
An optical image stabilizer furnished in an image sensing module includes a casing having a compartment, a fixing plate fixed to the casing, a movable part supporter, a movable part connected to the movable part supporter, a coil, at least one magnet, at least one compensation module, a suspension module connecting the movable part, and a base. The coil furnished outside the movable part is corresponding to the magnet located on the inner surface of the movable part supporter. The base to support the casing is located on the image sensing module. The vertical distance between the compensation module and the image sensing module is larger than that between the coil and the image sensing module. A light inlet side of the movable part is near to the compensation module, while a light outlet side thereof is near to the image sensing module.
Image capturing apparatus and control method therefor
An image capturing apparatus having a plurality of executable image blurring correction modes selects an image blurring correction mode to be executed from among the executable image blurring correction modes in accordance with an image capturing situation, and executes the selected image blurring correction mode. The image capturing apparatus has a plurality of display items respectively associated with the image blurring correction modes, and displays the display item corresponding to the image blurring correction mode under execution on a display screen.
Image stabilization device, image stabilization method, and program
Provided is an image stabilization device including a motion sensor for detecting motion data, an image data display unit for displaying image data, a shake coefficient calculation unit for calculating a shake coefficient indicating intensity of shaking based on time-series motion data detected by the motion sensor, and a motion correction unit for performing control on the image data display unit to move the image data in a direction of cancelling the shaking in a case the shake coefficient calculated by the shake coefficient calculation unit becomes less than a predetermined first threshold.
Camera and method for recording image files
A camera according to the present invention comprises: an imaging section converting an object image into image data; a storage section storing still image data of a still image obtained by the imaging section, thumbnail image data of the still image, and moving image data of a moving image which has been photographed at timing at least either before or after photographing of the still image; a display section performing display of one or more thumbnail views according to the thumbnail image data; and a display control section, when one of the thumbnail views is designated in the thumbnail view display, performing display of the still image on the display section according to the still image data corresponding to the designated thumbnail view after having performed display of the moving image according to the moving image data corresponding to the designated thumbnail view stored in the storage section.
Event-based image processing apparatus and method
Provided is an event-based image processing apparatus and method, the apparatus including a sensor which senses occurrences of a predetermined event in a plurality of image pixels and which outputs an event signal in response to the sensed occurrences, a time stamp unit which generates time stamp information by mapping a pixel corresponding to the event signals to a time at which the event signals are output from the sensor, and an optical flow generator which generates an optical flow based on the time stamp information in response to the outputting of the event signals.
Imaging apparatus and control method for imaging apparatus for warning display control operation
If a warning display about a matter of which warning is to be given has not yet been displayed when the matter occurring in an imaging apparatus has been detected, the imaging apparatus displays the warning display in response to detection of the matter, irrespective of whether a moving image is being recorded. If the warning display has already been displayed when the matter occurring in the imaging apparatus has been detected, the imaging apparatus does not display the warning display when the moving image is being recorded, and displays the warning display if the matter has still been detected when the moving image has stopped being recorded.
Photographing apparatus, and method for photographing moving object with the same
A photographing apparatus includes: an image pickup section picking up an image of an object to acquire image data; a part judgment section judging a particular part of the object in the image shown based on the image data; a change-in-part judgment section judging change over time of the part of the object judged by the part judgment section; and a control section changing a photographing condition in accordance with a result of the judgment by the change-in-part judgment section, wherein the part judgment section judges a first part of the object in the image and a second part presumed from the first part; and the change-in-part judgment section judges change over time of the second part.
Imaging device and method, and program
Disclosed herein is an imaging device including: a light emission control section configured to obtain a delay time from issuance to a flash of a light emission trigger indicating light emission start timing of the flash to reaching of a predetermined value by light emission luminance of the flash; an imaging control section configured to control exposure start timing on a basis of the delay time; and a correction amount calculating section configured to calculate, on the basis of the delay time, an amount of correction used when brightness of a taken image taken from the exposure start timing is corrected.
Surveillance device capable of focusing
A surveillance device includes a front cover, at least two guide rods, a lens module, a mounting plate, a first balance spring, a circuit board, and a number of second balance springs. The guide rods are mounted in the front cover. The lens module is received the first through hole. The mounting plate is slidably mounted to the guide rods. The mounting plate defines a through hole. The first balance spring is positioned between the front cover and the mounting plate. The circuit board is mounted to the mounting plate and opposite to the first balance spring. The image sensor is mounted on the circuit board and faces the through and the lens module. The second balance springs are positioned between the mounting plate and the circuit board. The first balance spring and the second balance springs keep the image sensor being aligned with the lens module.
Camera module with magnetic shielding and method of manufacture
A method for manufacturing camera modules for use in portable electronic devices, such as mobile phones, is provided. More specifically, in camera modules utilizing lens motion type auto focus actuation, permanent magnets associated with voice coil motors utilized in the auto focus system, generate magnetic flux that can interfere with the process of bonding image sensors to camera modules if the permanent magnets of different voice coil motors are positioned too closely. Incorporating a magnetic shield into the manufacturing process to restrain or control the magnetic flux generated by the permanent magnets permits voice coil motors camera modules to be positioned closer together during the manufacturing process. This increases manufacturing throughput and reduces cost.
Frame fastening structure
The present invention relates to a housing for an imaging device, and more particularly to a frame fastening structure, and provides a frame fastening structure with a thinner fastening portion. This frame fastening structure comprises a first frame, a second frame that is screwed to the first frame, bosses that are provided on either the first frame side or the second frame side, and holes provided on the other side into which the bosses are fitted. The center positions are offset when the bosses and holes are mated, which imparts a force in the direction of pulling the first frame and second frame together, and the layout is such that the fastening direction of the second frame is substantially perpendicular to the screw fastening direction.
Balanced modular camera mount apparatus and method of use
A balanced, modular camera mounting apparatus providing near hands free support and positioning of a mounted camera with infinite adjustment capability. The apparatus is comprised of a shoulder brace, at least one intermediate assembly plate, a camera mount plate, and a weight/accessory box. The shoulder brace includes curvature both longitudinally and laterally to ergonomically conform to the shoulder of the user. The rear end of the shoulder brace can be straight or curved and also includes a slot to adjustably connect the weight/accessory box. The shoulder brace further includes nonslip padding. Intermediate assembly plates vary in shape and size to allow for myriad adjustments providing balance and positioning according to a desired use. The camera mount plate is attached to an intermediate assembly plate. The weight/accessory box may contain extra assembly plates, camera equipment, or bagged weights as a counterbalance. Components are releasably attached to each other with hand-tightened thumbscrews.
Clothing and body covering pattern creation machine and method
Body art, such as tattoos, are integrated or extended onto clothing. Clothing patterns may be integrated or extended onto body art, such as temporary tattoos. In one embodiment, a computer analyzes an image of a body with a tattoo and generates an image suitable for application to clothing. When applied to clothing, the image displays the portion of the tattoo that is covered by the clothing, or may extend the appearance of the tattoo from the skin to the adjacent clothing.
Color enhancement technique using skin color detection
A method for enhancing the color of an image to be displayed includes receiving an input image having a plurality of pixels where each of the pixels has a plurality of color components. The input image is filtered using a spatial filter in such a manner that the lower frequency content of the input image is enhanced in such a manner that the dynamic range of the lower frequency content is increased. The filtered image is modified such that the higher frequency content of the input image is used to modify the filtered image.
Image processing apparatus, method, and computer program product identifying show-through position based on back side image and expanded front side image
An image processing apparatus includes an input image acquiring module for acquiring a first input image generated by reading one side of a document and a second input image generated by reading the other side of the document, a binarized image generator for generating a first binarized image by binarizing the first input image and a second binarized image by binarizing the second input image, an expanded image generator for generating an expanded image containing an expanded pixel obtained by expanding a valid pixel contained in the first binarized image, and a show-through position identifying module for identifying a show-through position in the second input image, based on the second binarized image and the expanded image.
Image reading apparatus and control method therefor
An image reading apparatus includes a reading unit configured to read an original document to generate image data, a first file generation unit configured to generate a first file based on first image data that is generated by reading a first original document using the reading unit, a second file generation unit configured to generate a second file based on second image data that is generated by reading a second original document using the reading unit, and an attaching unit configured to attach the second file to the first file, wherein the reading unit reads the second original document after reading the first original document.
Image forming system and image forming device for performing control in accordance with user authentication information
An image forming system includes a plurality of image forming devices connected in data communication with each other via a network. Each of the image forming devices includes a storage unit, an operational unit, and a controller. If one user logs into a first image forming device among the image forming devices, a controller of the first image forming device checks for the existence of a second image forming device into which the user has logged. If the controller of the first image forming device determines the second image forming device into which the user has logged, the controller transmits a logout instruction of the user to the second image forming device.
Image processing workflow with combined processes virtual plug-in
In an image forming device adapted to acquire image data and distribute the image data, a storage unit stores respective plug-in modules of an input process, an image transforming process, and an output process with respect to the image data. A combining information acquisition unit acquires combining information including plug-in identifiers which respectively indicate the plug-in modules. A combining unit combines two or more of the plug-in modules to generate a virtual plug-in based on the combining information. A flow setting unit sets up a workflow in which the plug-in modules including the virtual plug-in are combined arbitrarily. A workflow control unit controls processes included in the workflow when a message distribution process based on the workflow is requested.
Image processing apparatus, image processing apparatus control method, and storage medium
In an image processing apparatus, a usage state of a setting item that is set to execute a job is stored for each user. Another setting item corresponding to a setting item having a high usage frequency by the authenticated user is notified to the user. Further, a determination is made regarding whether to notify the user of a new function added to the image processing apparatus based on the usage state of the user.
Wireless communication system comprising receiver and image transmitter and wireless communication method thereof
Communication-identifier-assigned image data is transmitted via a set channel using the same as a communication identifier set for each image transmitter and a channel set in transmission. Then, a receiver which has received a plurality of image data items stores the received image data items, communication identifiers, and channels in such a manner that the received image data items are related to the communication identifiers and channels. Thumbnailed images in each image data item are displayed on one screen. When an image is selected from the thumbnailed images, an image transmitter that has transmitted the image is determined on the basis of the communication identifier and channel related to the selected image and is connected exclusively to the receiver. Images acquired from this time on are enlarged and displayed chronologically on a display section. The image transmitter and receiver constitute a wireless communication system.
Data capture from rendered documents using handheld device
A portable device having scanning, imaging or other data-capture capability is described. In some cases, the portable device can indicate to the user when enough information has been captured to uniquely identify a source document. In some cases, the portable device calculates timestamps and location-stamps indicating when and where a data capture occurred. In some cases, the portable device is controlled by gestures. In some cases, the portable scanning device has associated billing and content/service subscription information.
Portable device with dual image sensors and quad-core processor
A portable device that has first and second image sensors and a central processor. The central processor has four processing units and a first image sensor interface and a second image sensor interface for receiving data from the from the first and second image sensors respectively. The four processing units and the first and second sensor interfaces are integrated onto a single chip such that the four processing units are configured to simultaneously process the data from the first and second image interfaces to generate stereoscopic image data.
Camera with linked parallel processor cores
A camera with a CMOS image sensor, an image sensor interface for receiving data from the CMOS image sensor and multiple processing units interconnected with each other for parallel processing of data from the image sensor interface. The multiple processing units and the image sensor interface are integrated onto a single chip.
Browser-based scanning utility
A browser based scanning utility is provided that includes an applet delivery module for delivering a scanning applet to a web browser. A browser based capture application executes the scanning applet using the browser. The browser based capture application initiates a call. A web scanning module receives the call and activates one or more scanners for scanning one or more documents into specific image files. The web scanning module uploads the specific images to a document capture server for storage and maintenance.
Method for signaling a facsimile pass through mode over a VOIP voice service
A method (250) for signaling a facsimile pass through mode over a voice over internet protocol voice service is disclosed. The method (250) includes: establishing (260) a voice over internet protocol call; detecting (270) that a facsimile tone has been received by a sender; and sending (280) a facsimile pass through notify message, from the sender, in response to detecting that the facsimile tone has been received. Advantageously, the method 250 can be adapted to inform the voice over internet protocol service provider about the details of an ongoing facsimile call in pass through mode. Advantageously, this can provide usage information, quality of transmission information, billing information and other useful information.
Quality checks for printed pages using target images that are generated external to a printer
Systems and methods are provided for ensuring that printed output for a print job matches the expected output for a print job. The system comprises a control unit and a comparison unit. The control unit receives a print job and modifies the print job by adding a tag to each logical page of the print job, and to transmit the modified print job to a printer. The control unit further generates target images for the logical pages of the print job. The comparison unit receives printed pages of the job from the printer. For each printed page of the job, the comparison unit identifies a tag on the printed page, identifies a target image corresponding with the tag on the printed page, and compares an image of the printed page to the target image to detect discrepancies between the printed page and the target image.
Auditing of data processing applications
A method includes determining a first quantity of data records of a group of data records from a stream of data records received by an application having a plurality of modules. The method includes, for one or more of the modules of the application, determining a respective second quantity of data records output by the module during processing of the group of data records. The method includes determining whether the first and second quantities of data records satisfy a rule. The rule is indicative of a target relationship among a quantity of data records received by the application and a quantity of data records output by one or more modules of the application.
Method and apparatus for providing separable billing services
Methods and apparatus for providing separable billing services. In one embodiment, an apparatus comprises a memory for storing a data address associated with a first type of communication and a processor for receiving a data packet, the data packet comprising a destination data address. The processor compares the destination data address to the data address associated with the first type of communication, and routes the data packet to the destination data address if the destination data address matches the data address associated with the first type of communication and bills an account associated with the first type of communication.
Prepay accounts for applications, services and content for communication devices
A system and method for managing a billing account including a client device, a transceiver, logic configured to establish at least one primary account wherein the at least one primary account represents periodic fees that are charged to the billing account on a periodic basis; and logic configured to establish at least one secondary account wherein the at least one secondary account represents an amount of prepaid service that is available for the billing account.
Computation saving echo canceller for a wide band audio signal
A canceller splits a signal, transmitted from a near end terminal (ET) to a far ET, into a sub-sampled signal corresponding to a higher frequency sub-band of the signal transmitted to the far ET, and a sub-sampled signal corresponding to a lower frequency sub-band of the signal transmitted to the far ET; and splits a signal received from a far ET into a sub-sampled signal corresponding to a higher frequency sub-band of the signal received from the far ET, and a sub-sampled signal corresponding to a lower frequency sub-band of the signal received from the far ET. The canceller includes a first adaptive filter for filtering the sub-sampled signal corresponding to the lower frequency sub-band, a second adaptive filter for filtering the sub-sampled signal corresponding to the higher frequency sub-band, and controls the adaptation of the first and second adaptive filters so that these two adaptations are never simultaneous.
Distributed audio conferencing architecture with optimum resource utilization and seamless scalability
A conference call solution with one or more conference server, one or more conference bridge and one or more media mixer. A conference server is chosen as the conference bridge for the conference call using various optimization techniques. A media mixer for the conference call may also be chosen using various optimization techniques. The media mixer mixes media data from one or more conference bridge. If a conference bridge or the media mixer fails, the system recovers from the failure with minimal interruption to the users.
System and method for providing a call forward indicator
Embodiments of the disclosed invention include a system and a method for providing a call forward indicator to enable a called party to identify a forwarded call. In one embodiment, the method includes receiving calling information for placing a telephone call. The method determines from the calling information whether the telephone call is a forwarded call. The method modifies a caller identification of a calling party associated with the telephone call to include a call forward indicator in response to determining that the telephone call is a forwarded call. The method transmits the caller identification having the call forward indicator to a forwarded communication device associated with the called party.
System and method for routing calls
A method and system of routing telephone calls from a calling party to a called party including placing a call to a called party, accessing context information associated with the called party, permitting the calling party to opt to continue with the call or terminate the call based on the accessed context information, wherein continuing with the call comprises connecting the call to the called party or selecting a redirection option with the call.
Digital telecommunications call management and monitoring system
The present invention discloses a centralized, digital, computer-based telephone call management system for authenticating users of a telephone system in an institutional facility. The system includes the capacity to allow an institution to control, record, monitor, and bill and report usage and access to a telephone network. The telephone call management system further includes both accounting and management software for use in controlling, monitoring, billing, recording, and reporting usage and access. Also, it can operate over both a Public Switch Telephone Network (PSTN) and a Voice over Internet Protocol (VOIP) infrastructure.
A communication system including a plurality of terminals; and a switchboard connected to the terminals, includes a means for causing each of the terminals to register an identifier and an address of the terminal itself in the switchboard; a means for, when one of the terminals transmits a request of transmitting a list of the terminals connected to the switchboard, causing the switchboard to transmit the list of the terminals to the terminal that transmits the request; a means for, when the terminal that transmits the request selects one of the terminals from the list and transmits the identifier of the selected terminal to the switchboard, causing the switchboard to transmit the address of the selected terminal to the terminal that transmits the request; and a means for causing the terminal that transmits the request to establish a communication with the selected terminal using the received address and a default port number.
Customized hardware selection for a mobile phone
A mobile phone includes a shell and a hardware component coupled to the shell, wherein the hardware component is selected from a set of interchangeable components having substantially the same size but different functions.
Communication system providing data transfer direction determination based upon motion and related methods
A communication system may include at least one electronic device configured to wirelessly communicate via a short-range communications format, and at least one mobile communications device. The at least one mobile communications device may include a short-range communications device configured to wirelessly communicate with the at least one electronic device via the short-range communications format, and a controller coupled to the short-range communications device. The controller may be configured to determine a state of movement of the at least mobile communications device, and determine a direction of communication with respect to the at least one electronic device based upon the determined state of movement.
Multi-listener headphone system with luminescent light emissions dependent upon selected channels
An overall wireless broadcast system utilizing headphones that react in terms of light colors and light impulses when attuned to specific broadcast channels is provided. Such a system provides a unique performance capability in relation to the whims and selections of headphone wearers and listeners at an event with multiple attendees, ostensibly creating a spontaneous, continually changing visual result for spectators and participants alike. The headphones utilized for such a purpose are particularly adapted to allow for channel selections based upon different broadcast music possibilities (such as from a DJ or music device located in sufficiently close proximity for a headphone wearer to receive the broadcast signal to the degree that the broadcast music can be properly heard within the headphones themselves) such that the headphones themselves become modified in their own presentation based upon such a channel selection. The headphone modifications at a minimum require outward displays of luminescent color of at least the ear pieces (and may include the headband portion as well) thereof, as well as impulses of such color attenuated to reflect the rhythm of the selected broadcast music received by the headphones themselves. In essence, a wearer (listener) has the ability to select different broadcast music not only to allow for their own listening pleasure, but the outward appearance of the headphones in relation to such a selection provides a unique visual view to other listeners and/or spectators, as well. The entire multi-listener system utilizing such multi-channel and multi-color headphones is encompassed within this invention as well.
Mass deployment of communication headset systems
The present disclosure relates to devices, systems and methods for programming base units of communication headset systems with new or updated configuration parameters by a portable or handheld programming unit.
Mobile terminal intended to more efficiently display content on the mobile terminal and method for controlling the same
A mobile terminal is disclosed. The mobile terminal displays a progress bar for controlling the playback of content, selects two points on the progress bar, and upon receipt of a predetermined operation on the two points, controls the playback of the content, which has a playback portion between the two points. Accordingly, time-based content can be managed more efficiently through the progress bar.
Cellular telephone integration system
The invention relates to a cellular telephone integration system, comprising an adapter and a mounting device, whereby the adapter incorporates a base body with a seating, whereby the adapter incorporates at least one interface with the cellular telephone. Here, the adapter incorporates a clip, which projects over the seating, in the direction of the seating from one edge of the base body in a clamping position under pretension such that a cellular telephone can be inserted between a free end of the clip and the seating in a clamping position, whereby the cellular telephone in the clamping position between the clip and the seating is secured by the clip pressing on the cellular telephone such that this is held firmly in position in the clamping position, even while the vehicle is in operation.
Fixed station interface for legacy base station equipment
An interface device for provisioning Internet Protocol (IP) communications to be established for base station equipment that employ proprietary device specific protocols. A fixed station interface (FSI) translates between a V.24 High-Level-Data-Link Control (HDLC) protocols used for external data connections on base station equipment to a Voice-Over-Internet-Protocol (VOIP) open-standard protocol. Upon being deployed in First Responder communications networks (that use legacy base station equipment), the FSI provisions for the retention of existing installed base station equipment while providing a low cost solution to support VOIP communications interconnectivity and reliability, thereby enhancing the effectiveness and safety of the First Responder systems.
Systems and methods for laboratory assay validation or verification
Systems and methods are used to generate a protocol for an assay. At least one performance characteristic parameter of an assay and at least one standardized protocol for each assay of a plurality of assays and assay types are stored. A performance characteristic parameter selection and an assay selection are received from a client device of a laboratory. One or more performance characteristic parameters and a standardized protocol are retrieved from the database device. The client device is sent the one or more performance characteristic parameters and one or more study variable values. One or more amendments to the one or more performance characteristic parameters and one or more study variable values are received from the client device. A protocol for the assay is generated based on the one or more amendments.
Brokering and provisioning in high-speed networks
Network resources are provisioned within an application broker according to aggregated requests in an optical network. Resource requests are sorted to form sorted resource requests. The sorted resource requests are sorted according to destinations of the resource requests. The sorted resource requests are aggregated to form aggregated resource requests. Resource allocation is requested for each of the aggregated resource requests from a network border controller based on requirements of the set of set of aggregated resource requests. A set of allocated resources is received from the network border controller. The set of allocated resources is based on requirements of the aggregated resource requests. For each of the aggregated resource requests, network transmissions network receptions are executed utilizing associated allocated resources.
Media processing method, device and system
A streaming media processing method, device and system are disclosed in the embodiments of the present invention. The streaming media processing method includes: judging whether a transcoding is required according to the current bandwidth of a user terminal and a code rate of a pre-stored code stream, if yes, selecting a code stream of which the code rate is higher than the current bandwidth of the user terminal from the pre-stored code stream to perform the transcoding, and outputting the code stream matching the current bandwidth of the user terminal to the user terminal. The embodiments of the present invention enable the user terminal to obtain the streaming media of higher quality by effectively utilizing the bandwidth.
Presence system and a method for providing a presence service
A presence system and method are disclosed. The system comprises, intercommunicated: presentities E1, E2, E3 that provide presence notifications N1, N2, N3; a watcher W able to observe, when received, the presence notifications N1, N2, N3; and a presence service PS that receives the presence notifications N1, N2, N3 and delivers it to the watcher W, which is subscribed to the presence service PS. The presence service PS is able to acquire information about an idle, on-hold or suspended state of the presence subscription of the watcher W, and automatically delivers the presence notifications N1, N2, N3 to the watcher W only when he is not in the idle, on-hold or suspended state. The method is applied to carry out the necessary actions for operating the system proposed.
Method and system for providing content to users based on frequency of interaction
A system and method for providing content to a user based on at least one prior user experience are provided. First content is transmitted to a user, wherein at least some of the first content is transmitted in response to one or more user content selections. Frequency information based on the inputs and/or the first content is stored. A request for content is received from the user. Second content is selected based on the frequency information.
Managing transfer of data from a source to a destination machine cluster
In a method for managing transfer of data from a source machine cluster to a destination machine cluster, information relevant to the transfer of data from the source machine cluster to the destination machine cluster is accessed. In addition, a data transfer operation that substantially optimizes the transfer of the data based upon the accessed information is determined. Furthermore, the determined data transfer operation is implemented to transfer the data from the source machine cluster to the destination machine cluster.
Application providing system and application providing method
An application providing system has a communication terminal, a Web server that manages resources of Web applications, and a push server that manages storage location addresses of resources. The push server has an address managing unit that manages a terminal ID, a storage location address, and providing timing in a manner associated with one another. The push server further has a timing monitoring unit that monitors the providing timing. The push server further has a push transmitting unit that transmits a storage location address of a resource of a Web application associated with providing timing to a communication terminal associated with the providing timing upon detection of the providing timing to cache the resource of the Web application corresponding to the providing timing in the communication terminal.
Trivial file transfer protocol (TFTP) accelerated file retry option
A method of transferring data using a Trivial File Transport Protocol (TFTP) includes sending first request packet from client to server, first request packet requesting that first file be transferred; transferring first file according to first request packet if first acknowledgement packet is received at client from server indicating that server can accommodate request of first request packet; sending second request packet from client to the server if transfer of first file does not complete successfully, the second request packet including TFTP option indicating that transfer of first file be retried beginning at first block after final block that was successfully transferred in response to first request packet; and retrying transfer of first file according to second request packet if second acknowledgement packet is received at client from server indicating that server can accommodate request of second request packet.
System and method for data feed acceleration and encryption
Systems and methods for providing accelerated transmission of broadcast data, such as financial data and news feeds, over a communication channel using data compression and decompression to provide secure transmission and transparent multiplication of communication bandwidth, as well as reduce the latency associated with data transmission of conventional systems.
Information processing apparatus for reproducing and identifying content streams at plural network devices
A reproduction information acquiring unit acquires information identifying content streams reproduced by the information processing apparatus. A content information acquiring unit acquires, from a communicating terminal apparatus, information identifying the content streams being reproduced by the communicating terminal apparatus. A display processing unit generates a display screen to be displayed on a display, by using the information acquired respectively by the reproduction information acquiring unit and the content information acquiring unit. A screen display unit displays the display screen generated.
Method and apparatus for inter-user equipment transfer of streaming media
Techniques for inter-user equipment (UE) transfer (IUT) are disclosed. An application server receives an IUT request for transfer of a media session toward at least one UE such that a media stream is played by at least two UEs that are geographically separated after the transfer. The application server triggers inter-destination media synchronization (IDMS) for group synchronization of the media session among the UEs. The media stream may be anchored at a media server, and a media synchronization application server for the IDMS may be running at the media server. Alternatively, the media stream may be anchored at a media resource function (MRF), and a media synchronization application server for the IDMS may be running at the MRF.
Managing multimedia messages being transmitted to recipient devices of foreign networks
A method, system, and medium are provided for managing multimedia messages being transmitted to recipient devices of foreign networks. The method includes sending a multimedia message having a message size that exceeds a maximum allowable size supported or accepted by a foreign network of a recipient device. The method also includes receiving an indication that the sent multimedia message exceeded the maximum allowable size supported or accepted by the foreign network of the recipient device.
Secure container for protecting enterprise data on a mobile device
A system is disclosed that includes components and features for enabling enterprise users to securely access enterprise resources (documents, data, application servers, etc.) using their mobile devices. An enterprise can use some or all components of the system to, for example, securely but flexibly implement a BYOD (bring your own device) policy in which users can run both personal applications and secure enterprise applications on their mobile devices. The system may, for example, implement policies for controlling mobile device accesses to enterprise resources based on device attributes (e.g., what mobile applications are installed), user attributes (e.g., the user's position or department), behavioral attributes, and other criteria. Client-side code installed on the mobile devices may further enhance security by, for example, creating a secure container for locally storing enterprise data, creating a secure execution environment for running enterprise applications, and/or creating secure application tunnels for communicating with the enterprise system.
Modifying pre-existing mobile applications to implement enterprise security policies
A system is disclosed that includes components and features for enabling enterprise users to securely access enterprise resources (documents, data, application servers, etc.) using their mobile devices. An enterprise can use some or all components of the system to, for example, securely but flexibly implement a BYOD (bring your own device) policy in which users can run both personal applications and secure enterprise applications on their mobile devices. The system may, for example, implement policies for controlling mobile device accesses to enterprise resources based on device attributes (e.g., what mobile applications are installed), user attributes (e.g., the user's position or department), behavioral attributes, and other criteria. Client-side code installed on the mobile devices may further enhance security by, for example, creating a secure container for locally storing enterprise data, creating a secure execution environment for running enterprise applications, and/or creating secure application tunnels for communicating with the enterprise system.
Content filtering of remote file-system access protocols
Methods and systems for content filtering of remote file-system access protocols are provided. According to one embodiment, a remote file-system access protocol response is received at a network device logically interposed between one or more clients and a server. The response represents a response to a request from one of the clients relating to a file associated with a share of the server. A determination is made whether a holding buffer corresponding to the file exists. If not, then one is created; otherwise, the existing holding buffer is used for any of the clients or processes running on the clients that access the file. Data read from or written to the file as a result of the request is buffered into the holding buffer. The existence or non-existence of malicious, dangerous or unauthorized content contained within the holding buffer is determined by performing content filtering on the holding buffer.
Integrated network intrusion detection
Intrusion preludes may be detected (including detection using fabricated responses to blocked network requests), and particular sources of network communications may be singled out for greater scrutiny, by performing intrusion analysis on packets blocked by a firewall. An integrated intrusion detection system uses an end-node firewall that is dynamically controlled using invoked-application information and a network policy. The system may use various alert levels to trigger heightened monitoring states, alerts sent to a security operation center, and/or logging of network activity for later forensic analysis. The system may monitor network traffic to block traffic that violates the network policy, monitor blocked traffic to detect an intrusion prelude, and monitor traffic from a potential intruder when an intrusion prelude is detected. The system also may track behavior of applications using the network policy to identify abnormal application behavior, and monitor traffic from an abnormally behaving application to identify an intrusion.
Location-based regulation of access
Generally, access to content may be regulated by receiving a content request initiated at a jukebox for access to a content selection, identifying a jukebox location corresponding to a location of the jukebox, determining a permissible location for rendering the content selection, relating the jukebox location to the permissible location, and enabling the content request when the permissible location supports access to the content selection from the jukebox location.
Enterprise security management system using hierarchical organization and multiple ownership structure
A hierarchical security model for networked computer users is described. Files and resources are controlled or created by users within the network. Each user within the network has an account that is managed by a network administrator. The account specifies the user identifier and password. Users are grouped into organizations depending upon function or other organizational parameter. The groups within the network are organized hierarchically in terms of access and control privileges. Users within a higher level group may exercise access and control privileges over files or resources owned by users in a lower level group. The account for each user further specifies the group that the owner belongs to and an identifier for any higher level groups that have access privileges over the user's group. All users within a group inherit the rights and restrictions of the group.
Secure identification of intranet network
A method is provided for network identification based on high entropy data on a network which are not easily guessed or obtained outside the network, which can prevent an attacker from “spoofing” the network. A component in a client computer connected to a network may obtain over the network a network data block including device identification information of a device controlling the network. Upon parsing the network data block, such high entropy data as unique device identifiers may be obtained from the device identification information. Depending on availability of the unique device identifiers and authentication history of the client computer, different combinations of the unique device identifiers and/or other identification information may be used to generate a unique network identifier such as a network signature. The component may provide the network signature to applications within the client computer.
Managing trust relationships
Systems and methods for managing trust relationships. In some embodiments, a method may include receiving an indication of an in-person transaction between a first user and a second user; calculating, for the first user, a trust score associated with the second user, the trust score based, at least in part, upon the indication; and storing a record of the trust score. For example, the in-person transaction may include a face-to-face meeting.
Method and system for secure binding register name identifier profile
A method, a system, an apparatus, and a computer program product are presented for improving a register name identifier profile within a federated computing environment such that the register name identifier profile is enhanced to be more securely binding between two federated entities within the federated computing environment, such as an identity provider and a service provider. After the first federated entity sends a register name identifier request for a principal to the second federated entity, the second federated entity performs an authentication operation for the principal. In response to successfully completing the authentication operation, the second federated entity registers or modifies a name identifier for the principal that has been extracted from the received register name identifier request.
Reauthentication to a web service without disruption
Authenticating internet application sessions. A method includes downloading client side code that when executed implements one or more client side modules including at least one module with message interception functionality. The method includes executing the client side code to implement the one or more client side modules. A request is sent to an internet application server. In response to the request, a message is received from the internet application server indicating that the request is not authorized. The message from the internet application server indicating that the request is not authorized is intercepted at the one or more client side modules. The one or more client side modules, as a result of the message indicating that the request is not authorized, send a request for authentication in a required format for authentication. Authentication is performed without losing user state associated with the request to the internet application server.
Cloud data storage access verification method utilizing a variable assigning request string generator and receiver algorithm
A novel method of providing verifications for access to stored data programs within a cloud server protocol is provided. Such a method is operated through the implementation of a specific algorithm that permits a cloud server the means to communicate directly, reliably, safely, and nearly instantaneously with an individual (or his or her proxy) (at multiple contact points) for verification purposes in relation to an established data program stored within such a cloud server (whether in terms of written documentation, bank account, secure information, etc.). Such verifications may thus permit quick and reliable access to secured cloud programs such that only those individuals (or other entities) that are authenticated for such access through the utilization of such a verification procedure are permitted in such an instance.
Systems and methods for securing email in mobile devices
A computer-implemented method for providing secure mobile email communications is described. At least one application programming interface (API) of a native email client is hooked in order to transmit data securely via email. The native email client is native to an operating system of the mobile device. An email originating from a registered application is detected, via the hooked API. The email includes the data to transmit securely. The registered application is registered in a registry according to a mobile application authentication procedure. The registry includes a plurality of registered applications authenticated according to the mobile application authentication procedure.
Device authentication using device environment information
A device authentication server authenticates a remotely located device using a detailed history of movement of the device. Such movement history is represented by data representing a history of the external state of the device within a physical environment, examples of which include accelerometer logs, orientation logs, and magnetic field logs. To authentication of the device, the device authentication server sends a device key challenge to the device. The device key challenge specifies a randomized selection of device attribute parts to be collected from the device and the manner in which the device attribute parts are to be combined to form a device key. The device key is data that identifies and authenticates the device and includes a device identifier and device environmental data for comparison to reference device environmental data.
Flexible rendering of user interface elements
An exemplary method includes 1) retrieving a set of presentation elements from a remote server, the set of presentation elements including a graphical element, 2) retrieving metadata from the remote server, the metadata associated with the graphical element and including information specifying coordinates at which the graphical element is to be displayed and a distance for the graphical element to cover within a graphical user interface, 3) using the metadata to determine a distance to stretch the graphical element within the graphical user interface, 4) stretching the graphical element the determined distance starting from the specified coordinates, and 5) including the stretched graphical element within the graphical user interface. Corresponding methods and systems are also disclosed.
Method and apparatus for accessing a network
According to one embodiment of the present invention, there is provided a method of authorizing a computing device to access a network, comprising receiving authentication data including a user identifier from the computing device, determining whether approval to verify the authentication data is given, and where it is so determined, authorizing the device to access the network upon verification of the authentication data.
Soft token system
Systems and methods for a secure soft token solution applicable to multiple platforms and usage scenarios are provided. According to one embodiment a method is provided for soft token management. A mobile device of a user of a secure network resource receives and installs a soft token application. A unique device ID of the mobile device is programmatically obtained by the soft token application. A seed for generating a soft token for accessing the secure network resource is requested by the soft token application. Responsive to receipt of the seed by the soft token application, the soft token is generated based on the seed and the soft token is bound to the mobile device by encrypting the seed with the unique device ID and a hardcoded pre-shared key.
Systems and methods for certifying devices to communicate securely
A virtual private network (VPN) over a telecommunications network is created by sending a request from a first VPN device to a second VPN device for establishing a VPN between the first and second VPN devices. The request includes a first signed certificate having a verified VPN parameter for the first VPN device. A reply is received at the first VPN device from the second VPN device that includes a second signed certificate having a verified VPN parameter for the second VPN device. The VPN is established between the first and second VPN devices based on each verified VPN parameter for each of the first and second VPN devices.
Communication device, communication method and computer program
According to one embodiment, there is provided a communication device including a first communication layer receiving processor to perform a receiving process on a first communication layer on data received from a first communication device. The first communication layer receiving processor includes a first key identifying unit to identify, a key required to process the data; a first attribute identifying unit to identify, pursuant to key data, first attribute information that is attribute information associated with the key as identified; and a data processor to process the data using the key as identified. The data processed by the data processor and the first attribute information are passed to a second communication layer processor configured to perform a process on a second communication layer.
Tokenized authentication across wireless communication networks
Methods for marking and verifying an authentication status of a wireless communication device are disclosed. When a wireless communication device is authenticated in a first wireless communication network, copies of a token, are stored in memory accessible by the wireless communication device and in memory accessible by a clearinghouse server. The clearinghouse server also stores a correlation between the token and the identity of the server that authenticated the wireless communication device. When the wireless communication device moves from the first network to a second network, the WCD transmits the token to a server in the second network, which can then query the clearinghouse server to determine the identity of the server that authenticated the WCD in the first network, confirm the authentication status of the wireless communication device, and allow the WCD to access a resource in or via the second network.
DHCP proxy in a subscriber environment
Methods and apparatuses for a network element having DHCP proxy functionality are described. According to one embodiment, an exemplary method includes receiving, at a network element, a request for an IP address from a subscriber, in response to the request, on behalf of the subscriber, communicating with one or more IP address providers over a network to process the request, and responding to the subscriber with respect to the request as if the network element is an IP address provider, on behalf of the one or more IP address providers.
Message filtering system
A message filtering system is provided including a message management unit and a message monitoring unit in communication with the message management unit. The message management unit is configured to send and receive message over a network and to route messages to the message monitoring unit based on a message source, and the message monitoring unit is configured to parse the message and locate identifiers in the message and to re-route the message based on the identifier located in the message.
System for managing e-mail traffic
According to a first embodiment of the invention, if an e-mail sender attempts to make too many connections within a predetermined period of time, the excess connections are automatically rejected. According to a second embodiment of the invention, an agreement is established between an e-mail sender and an e-mail recipient that states when the sender may send e-mail messages to the recipient. According to a third embodiment of the invention, trend data reflecting an amount of e-mail sent by a sender is collected. The trend data can be used to establish a rate limit for the sender. According to a fourth embodiment of the invention, separate rate limits are established for authenticated and unauthenticated mail from addresses. According to a fifth embodiment of the invention, a sender may have a rate at which their e-mail is transmitted reduced if they exceed predetermined rate limits.
Microblog client, method for aggregating microblog messages, and instant messaging client
The application provides a microblog client, a method for aggregating a microblog message, and an Instant Messaging (IM) client. The microblog client includes: a message pulling module, which is to pull a microblog message from an external network server according to location information; a message pool, which is to store the microblog message pulled by the message pulling module; and a geography page service module, which is to generate one or more geography pages, and display the microblog message on a corresponding geography page, based on the location information corresponding to the microblog message pulled. By adopting the client and method provided by the application, microblog messages may be aggregated based on the location information. And users may be facilitated to obtain microblog messages.
Large send support in layer 2 switch to enhance effectiveness of large receive on NIC and overall network throughput
The present disclosure is directed to a method for delivering a plurality of packets from a network switch to a receiving node. The method may comprise collecting a plurality of packets received at the network switch during a time window; arranging the plurality of packets based on a source address, a package number, and a destination address for each one of the plurality of packets collected during the time window; and delivering the arranged plurality of packets to the receiving node.
Communication device, network node, and communication server
Disclosed is a technique for enabling a device that needs to send high priority and high bandwidth user plane traffic to send the user plane traffic even in the case where a group bandwidth has an upper limit in group-based communication. According to the technique, when an MTC device that is to send high priority and high bandwidth user plane traffic sends a service request to a network node (P-GW 213a), the network node allows use of a minimum bandwidth bearer in the case where the upper limit of the group bandwidth is exceeded. The MTC device sends a traffic sending request to an MTC server 214a via the bearer. The MTC server stops traffic of an appropriate other MTC device, to secure a bandwidth for the MTC device having the high priority and high bandwidth user plane traffic.
Network device, method for controlling the network device, and network system
A device that can sufficiently speed up a communication of a TCP is provided. A network device relays a TCP communication between hosts. The network device holds a request rate and a first output rate indicative of an effective bandwidth for transferring data to a second network. The network device divides data from a first network into a plurality of connections a second network, and transfers the data between the hosts. The network device holds a second output rate for each of the divided connections. When the request rate is equal to or larger than the first output rate by a threshold value, and a relatively low-speed connection is detected among the plurality of connections of the second network, the network device conducts a communication with the use of a connection other than the relatively low-speed connection.
Methods and apparatus for ECN receiver driven congestion control
Certain embodiments relate to systems and methods for managing congestion notification and control across a network. In certain aspects, a protocol for managing sender and receiver-based congestion control is provided using a format for streaming parameters, such as the Session Description Protocol format. In certain aspects, a system and method for operating an interworking gateway between different user devices is provided.
Transmission priority paths in mesh networks
In one embodiment, a node may determine a trigger for establishing transmission priority on a path through a shared-media communication network for priority traffic to a particular node. As such, the node may generate a path clear message (PCM) that would instruct one or more receiving nodes along the path to suspend transmission for traffic other than the priority traffic for a specified duration, and also to transmit a local non-repeated distributed message to one or more neighbor nodes of each respective receiving node, the local non-repeated distributed message to instruct the neighbor nodes to suspend transmission for the specified duration. After transmitting the PCM along the path to the particular node to establish the transmission priority for the priority traffic along the path through the shared-media network, the priority traffic may be transmitted to the particular node along the path during the transmission priority.
Relay apparatus and buffer control method
A relay apparatus that transfers data with an identifier corresponding to a transfer rate attached thereto and stores data as a transfer target to adjust the transfer rate, the relay apparatus includes multiple buffers that are respectively associated with multiple time regions that serve as targets to be successively read from a current point of time onward, each buffer having a capacity to store an amount of data determined in accordance with the transfer rate of the identifier, and a controller that reduces a size of a buffer corresponding to a second time region to be smaller than a size of a buffer corresponding to a first time region prior to the second time region in accordance with a time difference between the current point of time and the second time region.
Methods and apparatuses for improving database search performance
Methods and apparatuses for improving performance of database searches are disclosed herein. For example, in some implementations, the methods and apparatuses use a data node structure that prevents the need to duplicate data nodes shared by a plurality of data trees. Additionally, the methods and apparatus facilitate improved database lookup times by implementing an adaptive presence detection system based on the Bloom Filter, performance characteristics of the computing device evaluated at run time and status of the database.
Network control apparatus, network control system, and network control method
A network control apparatus includes: a power consumption collecting unit configured to collect power consumption information measured by at least one electrical node included in an electrical layer network and at least one optical node included in an optical layer network; a cut-through range identifying unit configured to calculate an optical cut-through path based on the collected power consumption information; and a cut-through path setting instructing unit configured to instruct the electrical node and the optical node to set the optical cut-through path based on the calculation result in the cut-through range identifying unit.
System and method for unmarshalled routing
In distributed object computing, messages from a source node to a destination node are often required to be routed via one or more intermediate nodes. In order to enhance efficiency of the relay process, a message envelope of a message may include a node list field that specifies the routing path of the message. The communication protocol for communicating the message may specify that when a message is received into a particular node, the node analyzes the node list field. If the identity of the node is last in the node list field, then the node is the destination node and thus the node unmarshals the message. Otherwise, the node forwards the message to the next node in the field list without unmarshalling the message.
System and method for cluster link aggregation control in a network environment
A method is provided in one example and includes receiving a request message from a first network element using an out-of-band control link. The request message includes a request to bundle a first port associated with the first network element into a channel group associated with a cluster. The cluster includes a plurality of clustered network elements. The method further includes determining a status of the first port with respect to the channel group, and sending a reply message to the first network element using the out-of-band control link. The reply message indicates the determined status of the first port of the first network element.
Information processing apparatus, parallel computer system, and control method of parallel computer system
An information processing apparatus connected to another information apparatus in a parallel computer system via a plurality of routes, includes: an arithmetic processing device to issue an instruction for collection of congestion information and for communication; a route information holding unit to hold route information for performing communication; a transmission unit to transmit a congestion information collection packet to any of the plurality of routes; a reception unit to receive a congestion information collection response packet corresponding to the congestion information collection packet from any of the plurality of routes; and a control unit to cause the transmission unit to transmit a congestion information collection packet, to select route information from the route information holding unit based on congestion information included in the congestion information collection response packet, and to cause the transmission unit to perform communication instructed by the arithmetic processing device based on the selected route information.
Hiding a service node in a network from a network routing topology
Hiding a service node in a network from a network topology is provided. In one embodiment, for example, an apparatus for hiding a service node in a network from a network topology, the apparatus comprising: a network interface; a processor; and one or more stored sequences of instructions which, when executed by the processor, cause the processor to perform: discovering a service node in a data network in accordance with a link-state protocol wherein the service node provides a network topology dependent service other than packet forwarding; establishing a link-state adjacency with the service node and one or more packet forwarding nodes in accordance with the link-state protocol; receiving a link-state advertisement; in response to identifying the link-state advertisement as an originating link-state advertisement sent from the service node, suppressing flooding of the received link-state advertisement to the one or more packet forwarding nodes.
State information and routing table updates in large scale data networks
In a communication network comprising nodes and links between the nodes, a controller node disseminates link state information. A nodal routing table exists at each node comprising routes between pairs of nodes. The nodal routing table is either populated by the given node based on network information received from the controlling node or populated at the controlling node and received by the given node. Each node receives heartbeat signals from its neighbouring nodes. An unexpected delay between heartbeat signals may be perceived as a failure of a link. The perceived failure of that link is reported by the perceiving node to the controlling node. Upon receiving link failure information from a node, the controlling node may determine a subset of nodes in the network influenced by the link failure and indicate the link failure to the determined subset of influenced nodes.
Keep-alive message integration over a wireless communication network
A wireless communication device that executes applications receives keep-alive messages including keep-alive data from the applications. The device processes the keep-alive data to select keep-alive messages for keep-alive message integration. The wireless communication device transfers integrated keep-alive data for the selected messages during a transfer window. A wireless communication system receives and processes the integrated keep-alive data to transfer individual keep-alive messages having the keep-alive data.
Monitoring a content-delivery network
A content delivery networked is monitored to verify operation of control channels for the delivery of content to a customer. Monitoring includes joining a connection with at least one control channel in the network, decoding content of a signal in the control channel, determining whether the decoded content complies with a pre-determined rule corresponding to content transmitted in the control channel, and producing a report indicating whether the decoded content is compliant with the rule. In addition, a graphical user interface (GUI) displays the status and results of testing the control channel. The GUI is configured to perform generating a display representing testing status of a plurality of DSG tunnels in a first frame and test results of the DSG tunnels in a second frame and providing details of a DSG tunnel test when selected by a user.
Determining network node performance data based on location and proximity of nodes
In an embodiment, a method comprises receiving a request to obtain network performance data for a plurality of target nodes; determining geo-locations of the plurality of target nodes; based on the geo-locations, determining a set of the plurality of target nodes that are within a specified proximity radius; selecting one particular target node in the set; sending a probe packet, requesting network performance data, to the one particular target node in the set and not to all other target nodes in the set; applying, to all the target nodes in the set, network performance data that is received in response to the probe packet; wherein the method is performed by one or more processors.
Network cost analysis
Embodiments generally disclosed herein include methods and systems for calculating incremental network costs between logical city pairs in a network (each city pair being in communication across the network via one or more physical links). For example, the method includes a cost analyzer that, for each physical link in the network, determines a steady state capacity allocation associated with each city pair in the network and, in the same vein, determines a restoration capacity allocation associated with each city pair in the network. The cost analyzer is capable of calculating an incremental cost per unit of traffic for a given city pair based on: i) the steady state capacity allocation and a restoration capacity allocation associated with a given city pair, as compared to, ii) the aggregate steady state capacity allocations and restoration capacity allocations associated with each city pair in the network.
Method and system for detecting loss of synchronization in ports
Machine implemented method and system of detecting a loss of sync at a port of a network device coupled to a port of another device is provided. The port includes logic configured to detect that a special character has not been received by the port for a programmable duration; and generates a signal for a processor of the network device indicating a loss of sync between the port of the network device and the port of the other device.
Presenting wireless-spectrum usage information
In some aspects, a method of displaying wireless-spectrum usage information is described. In some examples, a surface plot of a measure of wireless-spectrum usage for a geographic region is generated. The surface plot is based on analysis of physical layer signals detected at wireless-spectrum monitoring locations distributed over the geographic region. The surface plot is superimposed onto a view of the geographic region by operation of a display device. The superimposed surface plot visually indicates values for the measure of wireless-spectrum usage over the view of the geographic region.
Techniques for monitoring guest domains configured with alternate I/O domains
Techniques for monitoring guest domains configured with alternate I/O domains are disclosed. In one particular exemplary embodiment, the techniques may be realized as a method for monitoring guest domains configured with alternate Input/Output (I/O) domains comprising, installing cluster services in a control domain, installing cluster services in one or more alternate I/O domains, configuring, using at least one computer processor, an alternate service group to monitor services from multiple I/O domains, and configuring a logical domain service group, wherein the logical domain service group manages a guest domain which receives I/O services from either the control domain or the at least one alternate I/O domain which are monitored via the alternate I/O service group.
Method and system for policy-based control in a distributed network
A method and a system is disclosed for policy-based control of a communication network having a distributed architecture, including at least one heterogeneous communication network, which network elements provide for registering events, sending notifications of the occurrence of events and enforcing a policy upon said events if certain conditions are met, wherein the PEP 604 serves as a server towards a PDP 607, being a client By applying the method and system of the invention, multiple Stakeholders, having each at least one Policy Decision Point 607, can influence policy enforcements carried out at a Policy Enforcement Point 604.
Sensor based configuration and control of network devices
A mobile device, such as a smartphone or a tablet computer, can execute functionality for configuring a network device in a communication network and for subsequently controlling the operation of the network device with little manual input. The mobile device can detect, from the network device, sensor information that is indicative of configuration information associated with the network device. The mobile device can decode the received sensor information to determine the configuration information and can accordingly enroll the network device in the communication network. In response to determining to control the enrolled network device, the mobile device can capture an image of the network device and can use the captured image to unambiguously identify the network device. The mobile device can establish a communication link with the network device and can transmit one or more commands to vary operating parameters of the network device.
Minimizing the number of not-via addresses
In an embodiment, a method comprises determining a set of protected components that are associated with a notifying node; determining a single network repair address for the set of protected components, wherein the single network repair address is for use in response to unavailability of any of the protected components when transmitting network traffic to the notifying node; assigning the single network repair address to each of the protected components; wherein the notifying node is an internetworking device and wherein the method is performed by one or more processors.
System, method and apparatus for classifying digital data
A data classification system comprising a server adapted to receive data elements from a computer network, compute a distance between the elements and a plurality of representative elements such that where the distance is less than a threshold, the input elements are associated with the representative element and where the distance is not less than the threshold, the input element is stored as a new representative element. A method of classifying network traffic is further disclosed that can include providing a server adapted to receive data from a network, compute a distance between the data elements and representative data elements such that where the distance is less than a threshold, the input elements are associated with the representative element and where the distance is not less than the threshold, the input element is stored as a new representative element.
Methods, appratuses, and computer program products for determining a network interface to access a network resource
A method, apparatus, and computer program product are provided for determining a network interface to network resource. An apparatus may comprise a processor configured to receive a request for resolution of a domain name. The processor may be further configured to access maintained domain name suffix information. The maintained domain name suffix information may comprise a plurality of domain name suffix entries. The processor may additionally be configured to search the maintained domain name suffix information for one or more domain name suffix entries corresponding to the domain name to determine one or more network interfaces through which the domain name is accessible. The processor may also be configured to select a network interface for resolving the domain name into a network address from the one or more determined network interfaces.
Method for network domain name resolution and the resolution device thereof
The invention relates to a method for network domain name resolution, the domain name comprises a first portion domain name and a second portion domain name, and the resolution method comprising following steps: In a first network system, resolving the first portion domain name into a first network address; In the first network system, searching for a first network node corresponding to the first network address according to the resolved first network address; In a second network system, resolving the second portion domain name into a second network node address, and the domain name resolution system of the second network system being independent of the domain name resolution system of the first network system. As the resolution structure of the domain name in the Intranet is independent of the resolution structure of the domain name in the Internet, the IP address of the Intranet will not occupy the IP address resource of the Internet.
Remote keep-alive message management in a wireless communication network
Systems and methods are provided for managing keep-alive messages remote to a wireless communication device. In a particular embodiment, a method provides receiving an application request from a wireless communication device for an application that transfers keep-alive messages and receiving a first keep-alive message from the application intended for delivery to the wireless communication device. The method further provides processing the first keep-alive message to determine whether a response to the keep-alive message is necessary. If a response to the keep alive message is necessary, transferring a keep-alive message response to the application.
Method and system for managing device identification
The present disclosure provides a method and a system for managing the identification of devices (DID). A network device may provide the network device information to a server through a network. The server may generate a DID corresponding to the network device, and record the DID and the network device information into a device database. In addition, the network device and the server may share a shared key, which may be used to encrypt the DID and the network device information before the data transmission for enhancing security of the method. Moreover, the server may generate and record an exclusive key (Device Key) for data encryption before the data transmission with the network device, and transmit the Device Key to the network device. Therefore, the Device Key management may be accomplished simultaneously with the DID management to enhance data transmission security between the network device and the server.
Sequenced transmission of digital content items
The disclosure provides a system and method for managing and sequencing the transmission of digital content items from a network-accessible content service to a portable digital content device. The content service includes a cache management subsystem and provides storage for a plurality of playlists which are variously associated with user accounts and which each contain one or more digital content items. The cache management subsystem is configured to sequence transmission of digital content items to a given portable device based on attributes associated with the playlists containing the digital content items to be transmitted to the device.
System and method for third party specified generation of web server content
A mobile terminal may either receive a script, or request to receive a script, which specifies a third party procedure to generate content on the mobile terminal. The script defines the procedure, manual or automatic, to be used for the content generation. If manual content generation is required, then the user of the mobile terminal is queried for the content to be generated through an input procedure as directed by the script. If automatic content generation is required, then the script executes without user interaction to generate the content. In either case, the generated content is then readily accessible from the mobile terminal via a location within the WEB site name space as directed by the script.
DC correction for accurate detection of pulses
Techniques are presented herein for distinguishing between the DC component of a real signal and DC energy of a received signal due to the radio receiver circuitry. Samples are obtained of a received signal derived from output of a receiver of a communication device. A mean of the samples is computed over a sample window comprising a predetermined number of samples. First and second thresholds are provided, the first threshold being greater than the second threshold. An absolute value of the mean is compared with respect to the first threshold and the second threshold as samples are obtained in the sample window. A selection is made between the first threshold and the second threshold for purposes of comparison with the absolute value of the mean to determine whether energy at DC is a true/real DC component of the received signal or is due to circuitry of the receiver.
Adaptive backchannel equalization
Techniques for adaptive backchannel equalization. A total equalization value is determined over a preselected training period. A total balance equalization value is determined over the preselected training period. A transmitter equalization coefficient is determined based on the total equalization value and the total balance equalization value. Data is transmitted over a serial link using the transmitter equalization coefficient.
IQ imbalance estimation using broadcast signals
The present disclosure is described in the exemplary context of a Long Term Evolution (LTE) cellular network and is directed to a method and apparatus for estimating a gain and phase imbalance between an in-phase path and a quadrature path of a receiver operating in such a network. The method and apparatus specifically exploit channel coherence in time and frequency, and the properties of the Primary Synchronization Signal (PSS), and/or the Secondary Synchronization Signal (SSS), and/or information in the Physical Broadcast Channel (PBCH), all of which are defined by the LTE standard, to estimate the gain and phase imbalance of the receiver while it remains connected to a base station to receive data.
Electronic document communication system and electronic document communication method
The present invention relates to an electronic document communication system and to an electronic document communication method, which can construct an electronic document communication system for providing not only enterprise/institutions with reliability, but also individuals and small companies.
Method for scheduling bus system transmissions
A method for operating a bus system, which includes a master and k slaves as users, where a header of an interrogation frame, which includes k information fields, is transmitted by the master to the slaves; in each instance, an mth slave being assigned an mth information field; an information item regarding the amount of data that is to be sent by the mth slave to the master being written by the mth slave to the mth information field assigned to it; the interrogation frame being transmitted to the master; and a time schedule, by which the amount of data to be sent is taken into account, being prepared by the master for transmitting the data.
Communication control system for vehicles
Devices that are connected to each other by shorter distances, such as an audio switch 35 and an audio unit 21, the audio switch 35 and a volume control switch 41, a selector switch 43, and an audio mute switch 45 of a left handlebar switch unit 24, and a leveling unit 19 and a meter switch 32, a navigation panel switch 36, and an operation switch 46 of the left handlebar switch unit 24, communicate with each other by way of serial communications. Control units and vehicle-mounted devices which are connected to each other by longer distances, such as a TPMS unit 23, an FIECU 22, and a meter M, and the meter M, a leveling unit 19, a smart unit 23A, and an RVS unit 23B, communicate with each other via a CAN.
Method and apparatus for a configurable packet routing, buffering and scheduling scheme to optimize throughput with deadlock prevention in SRIO-to-PCIe bridges
A method and apparatus for a configurable packet routing, buffering and scheduling scheme to optimize throughput with deadlock prevention in SRIO-to-PCIe Bridges have been described. A single level enqueue method with dynamic buffering and dequeuing based on packet re-ordering is disclosed. Single level packet routing and scheduling to meet SRIO and PCIe rules to enqueue packets based on FType/TType is disclosed. Backpressure based on ingress watermarks for different packet types is disclosed. Use of a circular-reorder queue (CRQ) for both ingress and egress allows packet reordering and packet passing.
Method and apparatus for providing GUI
A GUI providing method and a GUI providing apparatus are provided. According to the GUI providing method, a GUI from among GUIs for an external apparatus connected to a video apparatus is determined and displayed. Accordingly, if there are many GUIs for an apparatus, a GUI most suitable for the current circumstance is automatically determined and provided to a user.
Method of providing communication between devices
The present invention relates to a method of providing communication between a first device and a second device, wherein the second device has a server component, the method comprising: establishing initial communication between the devices, wherein at least one of the devices receives from the other device data including at least one of a) a description or identification of the other device and b) a description or identification of a service; and providing instructions to the second device based at least on the received data, wherein the instructions and the server component allow the second device to respond to a subsequent request from the first device.The present invention also relates a system comprising electronic devices capable of communicating with each other.
Multicast route cache system
Techniques for organizing and grouping memory contents related to multicast routing so as to enable more efficient multicast operations. For PIM multicast routing, techniques are provided for organizing and grouping multicast routing information into data structures according to a plurality of dimensions such that multicast routing cache entries are accessible when performing a multicast routing operation by traversing the one or more data structures according to at least two of the dimensions.
System and method for multicast transmission
A system and method for multicast transmission are disclosed. In one embodiment, a virtual exchange network including interconnected nodes is embedded within a network. A sender is disposed in communication with a root node and receivers are disposed in communication with a set of edge nodes. The sender publishes a packetized data stream to which the receivers subscribe. The packetized data stream is promulgated by implicit signaling through optimum virtual exchange network connections from the sender through the virtual exchange network to the receivers. The interconnected nodes, responsive to receiving the published packetized data stream, are adapted to multicast N instances of the published packetized data stream to N recipients selected from the group consisting of receivers and other of the interconnected nodes.
Efficient and secure data currentness systems
Indicating data currentness includes, on any date of a sequence of dates, issuing a proof indicating the currentness status of the data during a particular time interval. The proof may be a digital signature. The time interval may be in the form of a current date and an amount of time. The proof may include a digital signature of the time interval. The proof may include a digital signature of the time interval and the data. The proof may include a digital signature of the time interval and a compact form of the data, such as a hash. Indicating data currentness may also include distributing the proofs to a plurality of unsecure units that respond to requests by users for the proofs. Indicating data currentness may also include gathering a plurality of separate pieces of data and providing a single proof for the separate pieces of data. The data may be electronic documents.
Power line communication (PLC) network nodes using cipher then segment security
Embodiments of the invention provide systems and methods for a cipher then segment approach in a Power Line Communication (PLC). A node or device generates frames to be transmitted to a destination node in the PLC network. A processor in the node is configured to generate a data payload comprising data to be sent to the destination node. The processor divides the data payload into two or more payload segments and encrypts the payload segments. The processor creates a frame for each of the encrypted payload segments, wherein each frame comprises a message integrity code. The processor creates a segment identifier for each frame using the message integrity code and an authentication key that is shared with the destination PLC node. The segment identifier is added to each frame.
Method and system for encrypting data
A method and system for encrypting data. An initialization is generated. Ciphertext is generated from plaintext by applying the initialization vector and an encryption key to the plaintext. The initialization vector is combined with the ciphertext to generate encrypted data, by using an embedding rule to perform the combining.
Masking with shared random bits
A non-linear transformation including a plurality of non-linear logical operations is masked to a second or higher order. The masking includes receiving a set of random bits, and machine-masking two or more of the plurality of non-linear logical operations with a same random bit from the set of random bits.
Given the rise in popularity of communicating personal, private, sensitive, or vital peer-to-peer or peer-to-group information over insecure text messaging infrastructure, it would be highly desirable to provide a lightweight solution that enables the exchange of information in a secure manner. The non-limiting technology herein provides systems and methods for the exchange of cryptographic material that can be used to encipher message-oriented communications between at least two peer devices. Once the cryptographic material is exchanged between cooperating peers, this lightweight solution can be used by common off the shelf hardware such as smartphones, tablets, feature phones, or special purpose machine to machine devices for private communications, such as command and control, location services, etc. using insecure voice or data communication paths, such as SMS.
Electronic key registration system
An electronic key registration system includes a controller of a communication subject, an initial electronic key that communicates with the communication subject and has an initial encryption key generation code, an additional electronic key that communicates with the communication subject, and an information center including an additional encryption key. The initial electronic key holds an initial encryption key generated from the initial encryption key generation code and a logic. The controller holds the logic and identification information of the communication subject. The controller acquires the initial encryption key generation code from the initial electronic key, generates an initial encryption key from the initial encryption key generation code and the logic held by the controller, and stores the initial encryption key. The information center sends the additional encryption key to the additional electronic key or the controller through a network.
Frequency sweep signal generator, frequency component analysis apparatus, radio apparatus, and frequency sweep signal generating method
A frequency sweep signal generator in which the frequency error is small even when the control values and the oscillating frequencies have a non-linear relation. The frequency sweep signal generator includes a variable frequency oscillator that changes an oscillating frequency according to a change of an input control value, and a first controller that generates a first control value so that the oscillating frequency within a predetermined frequency sweeping range is output. The first controller controls an increment of the first control value to be output to the variable frequency oscillator per unit time so that, when a change of the oscillating frequency with respect to the increment of the first control value is non-linear, the oscillating frequency is changed linearly with respect to a passage of time.
Time synchronization method, device, and system
The present disclosure provides a time synchronization method, including: acquiring, by a slave device, a first optical fiber transmission delay from a master device to the slave device, and a second optical fiber transmission delay from the slave device to the master device; exchanging a time synchronization signal with the master device, and calculating an initial time offset; adjusting the initial time offset by using the first optical fiber transmission delay and the second optical fiber transmission delay to obtain a corrected time offset; and adjusting a local clock according to the corrected time offset. Embodiments of the present disclosure further provide a corresponding device and system.
Hopping master in wireless conference
A first radio has duplex communication with a second radio and a third radio, without using a base station by using a multiple-access protocol system. The first radio is configured to switch back and forth between being a master radio and a slave radio in the multiple-access protocol system. In some embodiments, time-division multiplexing is used as the multiple-access protocol system for the first radio, the second radio, and the third radio to communicate. In some embodiments, the master radio provides timing synchronization and/or assigns transmission slots for radios in the multiple-access protocol system.
Mechanism for enhancing power control in time division based communications
There is provided a mechanism for conducting power control in a time division based communication. Subframes of a frame structure of the time division based communication are classified into at two or more classification sets, each classification set comprising at least one subframe. For each of the classification sets, power control related parameters are selected in accordance with the interference on the respective subframes. On the basis of the selected power control related parameters, a power control parameter set is configured defining a power control setting for each subframe of the frame structure. A UE receiving the power control parameter set applies the power control related parameters in the power control.
Method and device for data transmission
The present disclosure discloses a method and a device for transmitting data. The method includes: a UE determining, according to a preset rule, whether to transmit PUCCH and/or PUSCH and/or an SRS or not on a last symbol of a current subframe; the UE determining the PUCCH and/or the PUSCH to be transmitted on the current subframe according to availability of the last symbol of the current subframe for transmitting the PUCCH and/or the PUSCH; and the UE transmitting the PUCCH and/or the PUSCH on the current subframe and/or transmitting the SRS on the last symbol of the current subframe. In virtue of the present disclosure, it can be realized that a plurality of types of physical uplink signals/channels are simultaneously transmitted.
Method and apparatus for allocating and processing sequences in communication system
A method and apparatus for allocating and processing sequences in a communication system is disclosed. The method includes: dividing sequences in a sequence group into multiple sub-groups, each sub-group corresponding to its own mode of occupying time frequency resources; selecting sequences from a candidate sequence collection corresponding to each sub-group to form the sequences in the sub-group by: the sequences in a sub-group i in a sequence group k being composed of n sequences in the candidate sequence collection, the n sequences making a |ri/Ni−ck/Np1| or |(ri/Ni−ck/Np1) modu mk,i| function value the smallest, second smallest, till the nth smallest respectively; allocating the sequence group to cells, users or channels. It prevents the sequences highly correlated with the sequences of a specific length from appearing in other sequence groups, thus reducing interference, avoiding the trouble of storing the lists of massive sequence groups.
Method and apparatus for controlling a signal path of a radio communication
A method and a remote digital unit in a central office of a core network, for handling a radio communication for a mobile terminal being connected to an access point at a local site. The remote digital unit determines that the mobile terminal can be served locally by a local digital unit connected to a local signal switching unit at the local site, and instructs the local digital unit to locally process signals to or from the mobile terminal in the communication. The remote digital unit further schedules the signals over a radio interface between the mobile terminal and the access point, and sends updated scheduling information to the local digital unit to indicate the scheduling, thereby enabling the local digital unit to handle the radio communication according to the updated scheduling information. In this way, the functionality of a base station is divided into a relatively simple digital unit and switching function at the local site and a more advanced digital unit with scheduling function at the central office, such that the costs for implementing radio access at a local site are low and tromboning of communicated signals over the core network can be avoided.
Method and apparatus for device-to-device communication
A first user equipment (UE) receives information regarding a signal configuration from a network entity on a first carrier, and a reference signal from a second UE on a second carrier. The second carrier is associated with a transmission bandwidth configuration and a channel bandwidth. The transmission bandwidth configuration of the second carrier is contained within the channel bandwidth of the second carrier. The reference signal is within the channel bandwidth of the second carrier and in proximity to an edge of the transmission bandwidth configuration of the second carrier.
Variable control channel for a wireless communication system
Techniques for sending control information on a variable control channel are described. Different structures for mapping control information to control channel resources may be used depending on various factors such as operating configuration, the available resources for the control channel, the type(s) of control information being sent, the amount of control information being sent for each type, whether or not data is being sent, etc. In one design, at least one type of control information being sent may be determined and may comprise channel quality indicator (CQI) information, acknowledgement (ACK) information, and/or other types of control information. A structure of the control channel may be determined based on operating configuration (e.g., system configuration such as asymmetry of downlink and uplink allocations) and/or other factors. The at least one type of control information may be mapped to the resources for the control channel based on the structure.
Mitigation of wireless signal interference
A signal analyzer resource monitors a signal in a downstream channel of a shared physical communication link. In response to detecting presence of wireless interference coupling onto the signal received in the downstream channel, the signal analyzer resource communicates a feedback message to a management resource (or other suitable resource) over an upstream channel of the shared physical communication link. The message indicates the presence of the wireless interference. According to a more specific configuration, the signal analyzer resource can be configured to: detect a type of modulation used to modulate data on a signal received in a channel over a shared cable network; map the detected type of modulation to a corresponding set of configuration values; and utilize the corresponding set of configuration values as a basis to monitor and/or detect a presence of wireless interference on the channel. The signal analyzer resource can mitigate affects of interference.
Estimation of signal to noise ratio in receivers
This invention concerns the estimation of signal to noise ratio (SNR) at a communications receiver; it may be applicable to a wide range of receivers but is particularly suited for Orthogonal Frequency Division Multiplexing (OFDM) receivers. In particular the invention is a method, a receiver and software for performing the method. The signal to noise ratio (SNR) in the received signals is estimated by directly estimating the power ratio, in the received signal, between the part of the frequency spectrum of the received signal that contains only noise, and the part of the spectrum that contains both signal and noise; and averaging this value over a time interval.
Method and apparatus of transmitting ACK/NACK
A method for transmitting an uplink signal by a user equipment (UE) in a wireless communication system. The method according to one embodiment includes receiving, by the UE, a physical downlink control channel (PDCCH) via one or more resource units; receiving, by the UE, a physical downlink shared channel (PDSCH) indicated by the received PDCCH; and transmitting, by the UE, a physical uplink control channel (PUCCH) using a PUCCH resource in response to the received PDSCH. An index of the PUCCH resource is determined by adding a first index offset and a second index offset to a lowest index of the one or more resource units. The first index offset is signaled via the PDCCH and the second index offset is signaled via higher layer signaling.
Receiving apparatus, receiving method, and non-transitory computer readable storage medium
The receiving apparatus retains a split signal, which is obtained by splitting a predetermined signal, in a split signal storing unit. When the receiving apparatus receives a retransmission signal from among split signals stored in the split signal storing unit, the receiving apparatus controls a split signal, for which an error checking result does not indicate an error, such that the split signal is not updated, but controls a split signal, for which the error checking result indicates an error, such that the split signal is updated to a signal created by combining the predetermined signal and the retransmission signal.
Method and apparatus for enhancing transmission of downlink ACK/NACK signal
The invention relates to a method and apparatus for enhancing transmission of a downlink ACK/NACK signal in an LTE communication system. In order to attain the object of enhancing transmission of a downlink ACK/NACK signal, the invention proposes an enhanced design of the current PHICH and thus makes an enhanced PHICH (E-PHICH). The enhanced design is focused primarily upon the following aspects: the first aspect is to configure an E-PHICH in the legacy PDSCH and to transmit an ACK/NACK signal in the E-PHICH so that a UE demodulates the E-PHICH to obtain the ACK/NACK signal. The second aspect is to improve a PHICH-and-PUSCH association design by designing an implicit association between an E-PHICH index and a radio frequency resource occupied by a UL grant (in a legacy PDCCH or an E-PDCCH) and an explicit association between a PUSCH scheduled by a UL grant and an E-PDCCH respectively and to transmit an ACK/NACK signal in the E-PHICH so that a UE demodulates the E-PHICH to obtain the ACK/NACK signal. With the invention, transmission of a downlink ACK/NACK signal in an LTE communication system can be enhanced.
Uplink hybrid-ARQ mechanism for cooperative base stations
Method for performing a feedback process between a network access node and a user terminal, comprising collecting supporting information and suspending a transmission of a transport block until the supporting information is collected and/or a decision is taken as to whether request either a new transmission or a retransmission. The method may be performed in a serving network node cooperating with supporting network nodes, receivers or antennas, wherein a first part of the information of the transport block is gathered from a receiver or antenna within the serving network node and a second part of the information of the transport block is gathered from one of the supporting network nodes, receivers or antennas.
Methods and apparatus to identify the accessibility of femto-base stations in communication systems
A system and method for identifying the accessibility of femto base stations in a communication system. The system and method includes a plurality of macro base stations, open-access femto base stations and femto base stations with different subscriber groups. At least one of the base stations includes a transmitter configured to apply a base station identifier, such as a closed subscription group identifier, as a cyclic redundancy check (CRC) mask to XOR (exclusive OR) the CRC of a broadcast channel communication or an input to generate a scrambling sequence to the broadcast channel communication.
Serial interface packet information detection and control method and receiver thereof
A serial interface packet information detection and control method for a Mobile Industry Processor Interface is disclosed. The serial interface packet information detection and control method includes receiving and decoding a packet; generating a control signal according to packet information of a header of the packet; and disabling a function register according to the control signal.
Optical polarization multilevel signal receiving apparatus, optical polarization multilevel signal transmitting apparatus, and optical polarization multilevel signal transmission apparatus
The optical signal to noise ratio is improved when the polarization multilevel signal light is demodulated. A optical polarization multilevel signal receiving apparatus is provided with a polarization multilevel receiver configured to generate at least one estimation symbol A1 to AN estimating a state of the symbol A by utilizing a polarization state of at least one polarization multilevel symbol received in a past before the symbol A, a past value of a decision variable, and a decision result, average the estimation symbols A1 to AN and the symbol A to calculate a reference symbol Ar, and use the calculated reference symbol Ar in place of the symbol A to calculate a decision variable corresponding to a polarization state change of the received symbol R, where R is a received symbol and A is at least one past symbol used as a reference for a change.
Method and system for monitoring performance of wavelength path, and node device
The present disclosure relates to the field of network communication and particularly discloses a method for monitoring performance of a wavelength path. The method includes: receiving, by a second node, a path request message of a wavelength path from an upstream neighboring node, where the path request message includes at least a path identifier of the wavelength path and second wavelength identifier information; obtaining, by the second node, a wavelength identifier according to the second wavelength identifier information, and recording a mapping relationship between the wavelength path and the wavelength identifier; and determining, by the second node according to the wavelength identifier, a low frequency signal modulated at a working wavelength of the wavelength path, and obtaining performance of the wavelength path by monitoring the low frequency signal. A system for monitoring performance of a wavelength path and a node device are also disclosed in embodiments of the present disclosure.
Wireless terminal apparatus and wireless base station apparatus
Both a wireless terminal apparatus and wireless base station apparatus are provided that can, in an operation of encoding the control signals of the upstream link transmitted from the multiple terminal stations while encoding with regard to each of the terminal stations, increase a number of the terminal stations to which different codes are respectively assigned. A wireless terminal apparatus includes: an encoding information receiving portion receiving encoding information which is used at the wireless terminal apparatus from the base station; a phase-shifting unit which conducts a phase-shifting operation on a predetermined first code based on the encoding information; a code selection unit which, based on the received encoding information, selects a second code from multiple codes orthogonally crossing each other; and a control signal encoding portion which conducts an encoding operation on the control signal that is going to be transmitted to the base station by using both the first code on which the phase-shifting operation has been conducted and the second code.
Techniques for delivering emergency payloads for non-voice emergency services
Examples are disclosed for delivering, at user equipment (UE) such as a wireless device, emergency payloads for non-voice emergency services (NOVES). The examples include receiving, at a UE, an emergency payload associated with a NOVES that may include an emergency indicator, a voice message, a video or a text message. An attempt may be made to deliver the emergency payload to a public service answering point (PSAP) and if the attempt is not successful, the emergency payload may be stored at the UE. A number of reattempts may be made to deliver the emergency payload to the PSAP if the attempt is not successful. Based on an acknowledgement of delivery of the emergency payload to the PSAP or aborting reattempts to deliver the emergency payload, the stored emergency payload may be removed from the UE. Other examples are described and claimed.
Phase synchronizing nodes in a telecommunications network
For phase synchronizing nodes, on a node by node basis, following a tree-structured phase distribution network using the infrastructure of a telecommunications network, a first node transfers to a second node phase information substantially in phase with a phase reference internal to the first node and position signaling of the phase information with respect to component elements, such as bits, of a data signal carried by a link linking the nodes. The position signaling can be the number of component elements separating it from the phase information in a packet. The time to transfer the phase information through the link is precisely compensated.
Mitigating interference in a wireless communication system
A method of mitigating interference between carrier frequency bands of a carrier aggregation scheme. The method comprises: at a wireless device, receiving a first signal on a first carrier frequency band of the carrier aggregation scheme; mixing a second signal onto a second carrier frequency band of the carrier aggregation scheme and transmitting the second signal from the wireless device; executing code on a processing apparatus of the device to generate a reconstructed interference signal, by mixing an instance of the signal with a frequency location of an interfering harmonic from the second carrier frequency band falling in the first carrier frequency band; and removing the reconstructed interference signal from the first signal.
Optical signal demodulator, optical signal demodulating method, and optical add-drop multiplexer
An optical signal demodulator includes: an obtaining unit configured to obtain a spectrum of an optical signal generated by a second signal being superimposed on a first signal using frequency modulation; an identifying unit configured to identify a peak wavelength which is a wavelength corresponding to a peak position of the spectrum; and a demodulating unit configured to demodulate the second signal from the optical signal using a wavelength-variable filter to which a transmitted wavelength band has been set based on the peak wavelength.
Nonlinear compensating apparatus and method and transmitter
The present invention provides a nonlinear compensating apparatus and method and a transmitter. The nonlinear compensating apparatus includes: an information sequence acquiring unit, configured to acquire a symbol information sequence of the pulse signal; a perturbation quantity acquiring unit, configured to calculate, by pre-obtained weighting coefficients to which each item corresponds, the weighted sum of interaction items of pulses on one or more moments relative to the current moment; a perturbation quantity processing unit, configured to combine the items of the perturbation quantity based on the weighting coefficients; and an information compensating unit, configured to calculate a difference between the symbol information sequence and the processed perturbation quantity to obtain a compensated symbol information sequence. With the embodiments of the present invention, the complexity of calculation may be further lowered, and requirements on hardware may also be lowered.
Optical communication systems and methods
Systems and methods presented herein provide for optical communications with a remotely located laser. In one embodiment, a communication system includes an optical link and a communication hub comprising the laser optically coupled to a first end of the optical link and operable to transmit light along the optical link. The communication system also includes a communication node comprising an optical modulator optically coupled to a second end of the optical link, wherein the optical modulator is operable to receive a signal, to modulate the light from the laser with the signal, and to propagate the modulated light to the communication hub.
Intercom transceiver with fiber optic link
A system and method for carrying a downstream optical signal and an upstream optical signal on a fiber optic link is disclosed. The system and method includes a first transceiver unit that receives an input communication signal from at least one external communication device at an electrical input port, a transmitter that converts the input communication signal into an optical signal and transmits the optical signal as an downstream optical signal on a fiber optic link, a receiver at the second transceiver unit that receives the downstream optical signal and converts the downstream optical signal into an electrical communication signal, and a first circuit in the second transceiver unit that determines whether the second transceiver couples the electrical communication signal to a two wire intercom circuit or a four wire intercom circuit.
Method and apparatus for optical wireless architecture
Embodiments of the present invention pertain to optical wireless architecture, and in particular to novel optical architecture to provide wireless (mm)-wave signals and symmetrical wireline service with long-reach. Certain embodiments of the invention pertain to a novel method and apparatus to provide 12.5-Gb/s wireless signals at 60-GHz millimeter (mm)-wave and 100-Gb/s symmetrical wireline service with 80 km long-reach, for example. Moreover, novel enabling techniques are employed to overcome fiber dispersion, reduce costs, and provide super-broadband and long-reach service.
Optical transport network port protection systems and methods using flexible switch criteria
The present disclosure provides Optical Transport Network (OTN) port protection systems and methods using flexible switch criteria. Specifically, the OTN port protection systems and methods provide linear protection in OTN such as 1+1 Protection with Automatic Protection Switching (APS) and/or 1+1 Subnetwork Connection Protection (SNCP) Protection. The OTN Port Protection with flexible switch criteria allows a user to provision a protection application on an OTN Port and select a switch criteria, Section Monitoring, Path Monitoring, or Tandem Connection Monitoring, without considering the provisioning state of an Optical channel Data Unit level k (ODUk) entity. The ODUk entity may either be cross-connected in the LO case or terminated in the HO case. The ODUk entity may be provisioned independently, after the port protection has been established.
Apparatus and method of automatically managing satellite broadcasting service
An apparatus and a method for automatically managing a satellite broadcasting service are disclosed. The apparatus may include a rain attenuation information collection unit to measure weather information and a satellite broadcast signal and to collect and provide satellite broadcast signal quality information corresponding to rain attenuation, a rain attenuation analysis unit to analyze rain attenuation information collected by region and to verify a rain attenuation level, a satellite broadcast transmission signal plan unit to generate a satellite broadcast signal change plan to change a satellite broadcast transmission signal by region based on the verified rain attenuation level, and a satellite broadcast transmission signal controller to transmit a signal change instruction to a satellite ground station for the satellite broadcast transmission signal to be changed based on the generated satellite broadcast signal change plan.
Method and apparatus for in-building communications
A system for repeating radio signals to the outside of a structure, from transmitters operating within a structure that normally prevents radio transmissions from propagating out of the structure. A system for repeating radio signals to the inside of a structure, from transmitters operating outside a structure that normally prevents radio transmissions from propagating into the structure.
Digital retro-directive communication system and method thereof
The present invention relates to a digital retro-directive system and method thereof for receiving incoming signals from a transmitting source by means of at least two antennas and transmitting outgoing signals back, substantially, simultaneously, towards said transmitting source through said at least two antennas irrespective of the location of one antenna with respect to another and without calculating phase differences between said outgoing signals.
Extrapolating channel state information (“CSI”) estimates from multiple packets sent over different frequency channels to generate a combined CSI estimate for a MIMO-OFDM system
A method for extrapolating channel state information (“CSI”) estimates from multiple packets sent over different channels to generate a combined CSI estimate for a MIMO-OFDM system is disclosed. Packets are received on an m×n×Wi channel configuration, wherein m is the number of receive antennas used to receive the packets, n is the number of transmit antennas used to transmit the packets, and Wi is the number of OFDM channels for a packet i in the MIMO-OFDM system. CSI estimates are generated for the received packets and the CSI estimates are extrapolated to generate a combined CSI estimate for an m×n×R channel configuration, wherein R>Wi.
Orthogonal resource selection transmit diversity and resource assignment
Methods of allocating orthogonal resources of a wireless communication network to a user equipment (UE) that uses transmit diversity are disclosed. In one or more embodiments, the UE is configured to transmit a reference symbol and a modulated symbol on multiple orthogonal resources on an antenna. The method includes: selecting, by the UE, a first and a second orthogonal resource, respectively, from a plurality of orthogonal resources according to the state of information bits to be communicated by the UE; and transmitting, by the UE, the reference and data symbols on the first and the second orthogonal resource, respectively, on one antenna. The first and the second resource are different for at least one of the states of the information bits. The first and the second resource are both in the same physical resource block.
Method and apparatus for multi-antenna transmission in uplink
Method and apparatus for uplink transmission using multiple antennas are disclosed. A wireless transmit/receive unit (WTRU) performs space time transmit diversity (STTD) encoding on an input stream of a physical channel configured for STTD. Each physical channel may be mapped to either an in-phase (I) branch or a quadrature-phase (Q) branch. The WTRU may perform the STTD encoding either in a binary domain or in a complex domain. Additionally, the WTRU may perform pre-coding on at least one physical channel including the E-DPDCH with the pre-coding weights, and transmitting the pre-coded output streams via a plurality of antennas. The pre-coding may be performed either after or before spreading operation.
Multiple antenna transmission with per-antenna power constraints
A method, apparatus, and system to transmit signals using multiple antennas with per-antenna power constraints. The method includes initializing a precoding algorithm to a complex matrix. The precoding algorithm is for precoding signals transmitted by a plurality of antennas. The method includes iteratively processing the precoding algorithm on a per-antenna basis by, at each iteration, sequentially updating a precoder for each of the plurality of antennas. The method includes, after each iteration, determining whether the precoding algorithm has converged based on a change in a rate of mutual information across iterations. Additionally, the method includes, in response to determining that the precoding algorithm has converged, transmitting the signals using the precoding algorithm.
Antenna to transceiver mapping of a multimode wireless device
Various arrangements for mapping antennas to transceivers are presented. A plurality of antennas may be present. Each antenna of the plurality of antennas may be configured to communicate using different radio technologies. A plurality of transceivers may be present. At least some of the transceivers of the plurality of transceivers may be configured to utilize different radio technologies. A selector circuit may be present that is configured, based on input from a processor, to map each antenna of the plurality of antennas with each transceiver of the plurality of transceivers. The processor may be configured to control which antennas of the plurality of antennas are mapped to which transceiver of the plurality of transceivers. Touch sensors may be used to determine which antenna or antennas are likely to serve as effective electromagnetic transducers. Signal-to-noise measurements may be used to determine when to modify an antenna mapping.
Radio front end having reduced diversity switch linearity requirement
A radio front end that includes a diversity switch module adapted to route diversity receive (RX) signals to transceiver circuitry from diversity antenna switch circuitry coupled to at least one diversity antenna port is disclosed. The radio front end further includes ultrahigh band (UHB) switch circuitry adapted to route UHB transmit (TX) signals from power amplifier and switch circuitry to a UHB antenna port and/or to at least one diversity antenna port. The UHB switch circuitry is also adapted to route UHB RX signals from the UHB antenna port and/or to at least one antenna port to the transceiver circuitry, wherein the UHB RX signals include band 7 (B7) wherein linearity of the UHB switch circuitry is greater than linearity of the diversity switch module.
Near field communication system, and method of operating same
The present inventions, in one aspect, are directed to a system comprising a portable sensor device including a housing having a physical size/shape that is adapted to couple to a user's body, an identification tag including identification data which is associated with the sensor device and an identification tag transmitter to responsively and wirelessly transmit the identification data according to a first communication protocol. The system further includes a portable electronic device including an identification tag receiver to wirelessly receive the identification data of the identification tag according to the first communication protocol, transceiver circuitry to wirelessly and responsively communicate with the sensor device according to a second communication protocol, and processing circuitry to instruct the transceiver circuitry, after receiving the identification data, to wirelessly request, from the sensor device the sensor data and/or data which is representative of the sensor data.
Data receiver for near field communication and wireless communication system including the same
A data receiver for near field communication (NFC) includes an analog receiving unit and a digital processing unit. The analog receiving unit is configured to output one of received first data and modified received second data, according to an operation mode, the modified received second data being in-phase data and quadrature-phase data generated based on the received second data. The digital processing unit is configured to, determine a sampling characteristic of a first channel based on a first offset value, determine a sampling characteristic of a second channel based on a second offset value, detect a communication protocol of the received first data based on the first and second channels, and decode and store the received first data based on the detected communication protocol of the first data.
Power line communication method and apparatus
A system for transmitting and receiving signals over residential electrical cables includes at least one active wire, neutral wire and ground wire, including at least two power line modems, each coupling an electrical device with an electrical socket, each one of the power line modems including a processor. The system has transmitters and at least one receiver, the transmitters and the receiver including a coupling circuit, the coupling circuit including a first transformer and a second transformer, the first transformer including a center tap. Receive and transmit wire pairs are respectively formed from two of the active, neutral and ground wires and the midpoint, the transmitters defining a carrier wave set over the transmit wire pair. The processor determines a frequency carrier wave for the signals and provides the signals to a respective one of the transmitters according to the carrier wave set the frequency carrier wave is in.
Low-rate sampling of pulse streams
A method includes accepting an analog input signal that includes a sequence of pulses. The analog input signal is filtered so as to produce a filter output, using a filter whose time-domain response is confined to a finite time period and whose frequency-domain response is non-zero at a finite set of integer multiples of a frequency shift Δω, and is zero at all other integer multiples of Δω. The filter output is sampled so as to produce digital samples. Respective amplitudes and time positions of the pulses in the sequence are calculated based on the digital samples.
Processor for a radio circuit
A processor for a radio circuit is disclosed. The processor includes a full spectrum receiver and a white space classifier. The full spectrum receiver is configured to receive an analogue radio signal comprising multiple channels within a frequency band and transform the analogue radio signal to a digital radio signal. The full spectrum receiver is also configured to transform the digital radio signal from a time domain signal to a frequency domain signal. The white space classifier is configured to identify an unused channel within the frequency band using the frequency domain signal derived from the analogue radio signal.
Terminal apparatus and communication method for receiving control data and user data
In order to reduce interference between cells through hopping and use frequencies in a good propagation situation, a scheduler section carries out scheduling for determining to which user data should be sent using CQI from each communication terminal apparatus, selects a user signal to be sent in the next frame and determines in which subcarrier block the data should be sent. An MCS decision section selects a modulation scheme and coding method from the CQI of the selected user signal. A subcarrier block selection section selects a subcarrier block instructed by the scheduler section 102 for each user signal. For the respective subcarrier blocks, FH sequence selection sections select hopping patterns. A subcarrier mapping section maps the user signal and control data to subcarriers according to the selected hopping pattern.
System and method for demodulating an incoming signal
Methods and receiver circuits are provided for correlating an incoming signal with PN codes. An embodiment of the method includes receiving I/Q baseband samples in the I/Q domain; converting the I/Q baseband samples to phase baseband samples; generating a pseudonoise (PN) code; converting the PN code to PN phase data; performing a correlation on the phase baseband samples using the PN phase data to generate correlated I/Q values; performing an adding operation on the correlated I/Q values to generate demodulated I/Q values; converting the demodulated I/Q values into demodulated phase values; performing a frequency correction operation on the demodulated phase values to generate frequency correction data; converting the demodulated I/Q values into demodulated magnitude values; and performing signal decoding and synchronization on the magnitude values to generate output data. The operation of performing correlation on the phase baseband samples using the PN phase data is accomplished using scalar subtraction.
Ultra wideband modulation for body area networks
A symbol modulation system applicable to a body area network is disclosed herein. The symbol modulation system includes a symbol mapper. The symbol mapper is configured to determine a time within a predetermined symbol transmission interval at which a transmission representative of the symbol will occur. The time is determined based on a value of a symbol and a value of a time-hopping sequence. The time is selected from a plurality of symbol value based time slots, and a plurality of time-hopping sequence sub-time-slots within each symbol value based time slot. The symbol mapper is configured to generate a single guard interval within the symbol transmission interval. The single guard interval is positioned to terminate the symbol transmission interval.
Transceiver and communication device
A transceiver comprises a receiver, a transmitter, a signal transmission arrangement, a first signal transferring element, and a transformer having magnetically-connected first and second windings. The first signal transferring element is between the transmitter output and the signal transmission arrangement, which is arranged to transmit signals from the transmitter and to receive signals and provide them to the receiver. The first winding of the transformer is connected in parallel with the first signal transferring element, which has input and output impedances so that signals from the transmitter output reach the signal transmission arrangement, while signals from the signal transmission arrangement do not reach the transmitter output. As such, the first signal transferring element is arranged to transfer signals from the transmitter to the signal transmission arrangement such that the transmitter contribution to the signal in the first winding is suppressed.
Radio frequency multi-port switches
A multiport radio frequency (RF) switch circuit is disclosed. The switch circuit includes a first transistor that is connected to a first port, a common antenna port, and a first enable line. The first transistor is selectively activatable in response to a first enable signal applied to the first enable line. There is also a second transistor connected to a second port, the common antenna port, and a second enable line. The second transistor is selectively activatable in response to a second enable signal applied to the second enable line. A first inductor connected to the first port and the second port compensates for parasitic capacitance between the first port and the second port from an inactive one of the transistors.
Adaptive cosite arbitration system
A system for coupling a communication unit to an antenna. The system includes a tunable bandpass filter and a second tunable filter, such as a tunable low-pass filter, in parallel with the tunable bandpass filter. The system also includes a measurement and control unit configured to measure a frequency of a signal generated by the communication unit and to tune the tunable bandpass filter to pass the signal generated by the control unit.
Cell phone charger holder
A cell phone charger holder includes a main body, a plug, and an electric cord. The plug has two blades. The main body has a front face provided with a receiving chamber for receiving the plug. The main body has a side provided with an annular groove for winding the electric cord. The main body has a lower portion provided with two positioning hooks for placing a cell phone. The main body has a back face provided with two upright slots corresponding to the blades of the plug. Thus, the plug and the electric cord are positioned and stored completely by the main body. In addition, when the main body is disposed at an inclined state, the cell phone supported by the main body is disposed at an inclined state.
A wireless mouse suitable for accommodating a receiver is disclosed. The wireless mouse comprises a mouse body, and a cover shell. The mouse body includes an upper casing, and a lower casing fixed to the upper casing. The lower casing has a receiving portion. The cover shell selectively covers the lower casing. The receiver is removably fixed on the cover shell corresponding to the position of the receiving portion. When the receiver is fixed on the cover shell and the cover shell covers the lower casing, the receiver is accommodated in the receiving portion.
Method and system for removing interference caused by servo data from user data
Reproduction of encoded data which includes a split-mark. FIR data corresponding to split-mark and FIR data affected by the split-mark due to inter-symbol-interference are identified. FIR data corresponding to the split-mark is removed from the received FIR data. Recovered data is created by removing incorrect inter-symbol-interference from the FIR data due to the split-mark, and adding correct inter-symbol-interference from codeword bits. The recovered data is stitched together with data unaffected by split-mark data.
Method and system for text compression and decompression
The present invention is to provide a method and system for compression and decompression text comprising: creating a redundant universal permanent reference vocabulary which include commonest symbols utilized by all application, and symbols found in thousands of books, specific, professional vocabularies and is created in advance of any information processing, own vocabulary containing during process of text compression and decompression wherein the own vocabulary includes words and symbols e.g. slangs are found in written conversation between persons; splitting the universal vocabulary into a root of tree symbol/index and main symbol sections; creating a first temporary vocabulary; wherein the first temporary vocabulary includes commonest symbol/index utilizing by all applications, root of tree word/index section, and merging index table section to words content in specific vocabulary section; creating a second temporary vocabulary for repeating symbols found in the source text and not found in the first temporary vocabulary; creating pseudo-code by merging an indicator with root of tree or main indexes.
Techniques for compressing mass spectrometry data in real-time
Techniques are described for performing data compression of a first data set including data points in a plurality of dimensions. First processing is performed to determine a second set of final sums. For each data point in the first data set, a corresponding final sum of the second set is determined that is a sum of intensities associated with a first portion of data points, wherein the first portion of data points for which the intensities are summed for said each data point are included within a geometric shape centered on said each data point. Second processing is performed to determine a final set of final combined keep values. Each of the final combined keep values corresponds to a different one of the data points in the first data set and denotes whether to keep or otherwise remove the different one of the data points from the first data set.
Field level compression in parallel data flows
According to one embodiment of the present invention, a system selectively compresses data fields in a parallel data flow. The system identifies within an execution plan for the parallel data flow a first instance of a data field within a stage of the parallel data flow. The system traces the identified data field through stages of the parallel data flow and determines a score value for the identified data field based on operations performed on the identified data field during traversal of the stages. The system compresses the identified data field based on the score value indicating a performance gain with respect to the compressed data field. Embodiments of the present invention further include a method and computer program product for selectively compressing data fields in a parallel data flow in substantially the same manners described above.
A sigma-delta modulator (300) comprising a first filter stage (304); a second filter stage (306) in series with the first filter stage (304); a first feedback path (311) between the output of the second filter stage (306) and the input to the second filter stage (306), the first feedback (311) comprising a first gain stage (308, 308′) such that the first feedback path (311) is configured to provide a first gain value; and a second feedback path (313) between the output of the second filter stage (306) and the input to the first filter stage (304), the second feedback path (313) comprising a second gain stage (309; 310′) such that the second feedback path (313) is configured to provide a second gain value. The first gain value is different to the second gain value.
Dynamic gain switching digital to analog converter
A digital to analog converter that may include a digital gain block; an analog gain block; a digital to analog conversion (DAC) block and a controller that is configured to: determine a digital gain factor, selected out of multiple digital gain factors, of the digital gain block and an analog gain factor, selected out of multiple analog gain factors of the analog gain block; wherein the DAC block is preceded by the digital gain block and is followed by the analog gain block; wherein the digital gain block is configured to multiply a digital input signal by the digital gain factor to provide an intermediate digital signal; wherein the DAC block is configured to convert the intermediate digital signal to a converted analog signal; and wherein the analog gain block is configured to multiply the converted analog signal by the analog gain factor to provide an output signal; wherein an increment of the analog gain factor results in a decrement of the digital gain factor.
Analog to digital conversion device and analog to digital conversion method
An analog to digital conversion method includes: receiving an analog input signal by using a coarse analog to digital converter (ADC) and a fine ADC; generating a first digital signal by using the coarse ADC according to the analog input signal; comparing each bit of the second-most significant bit to the least significant bit of the first digital signal with the most significant bit of the first digital signal to generate a comparison result; according to the comparison result, controlling switching of a high bit capacitor array of the fine ADC to convert the analog input signal received by the fine ADC into a residual signal; generating a second digital signal according to the residual signal by sequentially switching a low bit capacitor array of the fine ADC by using the fine ADC; and combining the first digital signal and the second digital signal to generate a digital output signal.
Pulse generator and analog-digital converter including the same
Provided is a pulse generator. The pulse generator includes: a pulse generation unit receiving an analog signal and generating a first pulse signal in response to a comparison result of a voltage level applied to a first node and a reference voltage according to the received analog signal; a pulse amplification unit generating a second pulse signal having a wider pulse width than the first pulse signal according to a comparison result of a voltage level applied to a second node and a ground voltage, in response to the first pulse signal; and a gate logic outputting a final pulse signal as a signal for digital conversion by performing a logic operation on the first and second pulse signals.
Reconfigurable wideband sub-ranging analog-to-digital converter
A reconfigurable wideband analog-to-digital converter (ADC) system comprising a first converter stage having a first signal path including a first sample and hold circuit for sampling an input signal at a first resolution, and a second signal path responsive to the input signal and arranged in parallel with the first signal path. The second signal path includes a second sample and hold circuit for sampling the input signal at a second resolution. A first ADC is also included for generating a digital representation of the input signal sampled by the first converter stage. A control processor is arranged between outputs of the first and second sample and hold circuits and the input of the ADC for selectively providing the signal sampled by one of the first or second sample and hold circuit to the input of the ADC.
Provided is a delta-sigma modulator including a summer summing an input signal and an analog signal, a first integrator integrating an output signal from the summer and outputting a first integration signal, a second integrator integrating the first integration signal and outputting a second integration signal, a comparator comparing the second integration signal and a reference signal and outputting a digital signal according to the comparison result, and a digital-to-analog converter converting the digital signal into an analog signal in response to a clock signal and outputting the converted analog signal, wherein the second integrator operates based on an Nth order (where N is natural number of 1 or greater) transfer function.
VCO restart up circuit and method thereof
A circuit and a method for restarting up a VCO of a PLL are introduced herein. The VCO restart up circuit receives a power down signal, an external signal, a clock output from the VCO and generates a trigger signal to the VCO to trigger the VCO clock to leave a stable mode. In other words, if the VCO clock is in the stable mode, the VCO restart up circuit generates one or more than one pulse on a trigger signal to restart up the VCO. Oppositely, if the VCO is not in the stable mode, there is no pulse on the trigger signal generated by the VCO restart up circuit and the VCO needs not to be restarted up.
Transparent timing of a stratum synchronized ethernet signal using standard optical transport network rates
A method and system for transparent timing of an Ethernet signal over an optical transport network are disclosed. In one embodiment, a transceiver includes a first clock recovery circuit, a first synchronizer and an asynchronous mapper. The first clock recovery circuit recovers a first clock from a first signal received from an Ethernet network. The first synchronizer multiplies the first clock by a ratio M/N to produce a second clock to time a second signal transmitted over the optical transport network. M and N are integers. The asynchronous mapper maps frames of the first signal to produce frames of the second signal.
Apparatus and methods for power quality measurement
A method for measuring characteristics of a power line signal having a fundamental frequency is provided. The method includes estimating the fundamental frequency of the power line signal, and generating a sampling clock that is substantially synchronized to the estimated fundamental power line frequency. The power line signal is sampled with the substantially synchronized sampling clock to generate data samples that include one or more substantially complete cycles of the power line signal. The data samples are processed to detect zero crossings of the power line signal, and the detected zero crossings are used to calculate an r.m.s. voltage of the power line signal measured over one full cycle, commencing at a zero crossing, and refreshed each half-cycle. Other aspects are also provided.
Fractional frequency divider circuit
A fractional frequency divider circuit includes: a frequency divider circuit configured to frequency-divide an input clock at 1/CTSquo, wherein the CTSquo is a quotient of CTS/N; a clock addition circuit configured to add one clock to an output of the frequency divider circuit; a counter that counts the number of cycles of the output of the frequency divider circuit by a carry of the frequency divider circuit or an output of the clock addition circuit; a match detection circuit that determines whether an integer multiple of N/CTSrem matches a value of the counter, wherein the CTSrem is a remainder of CTS/N; and a selector circuit that outputs the output of the clock addition circuit as an output clock when the match is detected by the match detection circuit, and outputs the output of the frequency divider circuit as an output clock when the match is not detected.
Output apparatus, output driver, and level shifting system
An output driver for driving a pad includes a pull-up circuit and a pull-down circuit. The pull-up circuit includes first, second and third first-type transistors. The first and second first-type transistors are commonly controlled by a first logic signal. The third first-type transistor is connected in parallel to the second first-type transistor. The pull-down circuit includes first, second and third second-type transistors. The first and second second-type transistors are commonly controlled by a second logic signal. The third second-type transistor is connected in parallel to the second second-type transistor. The pull-up circuit is configured such that a response speed of the first first-type transistor to the first logic signal is lower than that of the second first-type transistor to the first logic signal.
Semiconductor memory device with power interruption detection and reset circuit
A control logic unit generates a control signal which is activated while a power supply normally operates. A charge circuit is connected to a first node on a voltage control line supplied with a voltage generated by a voltage generation circuit, so that its capacitive element is charged with electric charge. A first discharge circuit is connected to a charge storage node of the charge circuit and discharges the stored electric charge when the control signal is activated. A second discharge circuit discharges the first node when the charge storage node has a potential exceeding a predetermined potential.
Delay compensation circuit
An integrated circuit includes a delay compensation circuit (221, 222) that further includes a terminal for receiving a varying signal from a circuit external to the integrated circuit; a sampler circuit that samples and holds a present value of the varying signal at each occurrence of a transition in a digital signal; an integrator, coupled to the sampler circuit, that integrates a voltage difference between a sample of the varying signal and a reference signal, and that outputs results of the integration, wherein a time constant of the integrator is greater than a period of the varying signal; a waveform generator that generates a decreasing voltage in response to a transition in a second digital signal; and a comparator that has one input terminal for receiving the decreasing voltage, an inverted input terminal for receiving the results, and an output terminal for outputting a signal that generates an output signal.
Automatic gain control circuit
An automatic gain control circuit (5a) includes a peak detector circuit (10) that detects the peak voltage of the output signal from a variable gain amplifier (3), an average value detection and output amplitude setting circuit (11) that detects the average voltage of the output signals from the variable gain amplifier (3) and adds a voltage ½ the desired output amplitude of the variable gain amplifier (3) to the average voltage, and a high gain amplifier (12) that amplifies the difference between the output voltage of the peak detector circuit (10) and the output voltage of the average value detection and output amplitude setting circuit (11) and controls the gain of the variable gain amplifier (3) using the amplification result as a gain control signal. The peak detector circuit (10) includes transistors (Q1, Q2, Q3), a current source (I1), and a filter circuit. The filter circuit includes a series connection of a resistor (Ra) and a capacitor (C1).
Wideband inductor-less balun-LNA with improved pickup noise rejection
An inductor-less balun low-noise amplifier (LNA) includes a cross-coupled network coupled between first and second input terminals and first and second summing nodes. The cross-coupled network may include: a first non-inverting gain stage coupled between the first input terminal and the first summing node; a first inverting gain stage coupled between the first input terminal and the second summing node; a second non-inverting gain stage coupled between the second input terminal and the second summing node; and a second inverting gain stage coupled between the second input terminal and the first summing node. The cross coupled network may be configurable to provide common-mode rejection when operated in a differential or in a single-ended mode of operation.
Audio signal processing circuit, car audio apparatus using the same, audio component apparatus, electronic device and output audio signal generating method
An audio signal processing circuit includes a first amplifier to generate a first analog audio signal; a second amplifier to generate a second analog audio signal; an analog/digital converter to generate a first digital audio signal; a digital signal processing unit to output a second digital audio signal; a digital/analog converter to generate differential third analog audio signals; a third amplifier for inverting a positive signal of the third analog audio signals and adding it to a negative signal to generate a single-ended fourth analog audio signal; and a fourth amplifier to generate an output audio signal.
Power amplifying device and transmitter
Certain embodiments provide a power amplifying device including: a distribution line which distributes power; a plurality of power amplifying elements; a connection line; an output line; a filter; a first directional coupler; and a second directional coupler. The power amplifying elements is provided at a stage subsequent to the distribution line. The connection line is provided at a stage subsequent to each of the power amplifying elements and combines outputs of the power amplifying elements. The output line is connected to the connection line. The filter is placed on the connection line or the output line. The first and second directional couplers are provided at a stage subsequent to the filter. The first directional coupler outputs the high frequency signal transmitted to the output line, to a RF monitor terminal. The second directional coupler outputs the high frequency signal transmitted to the output line, to a level detection detector.
Operational amplifying circuit and liquid crystal panel drive device using the same
An operational amplifier circuit includes: a first differential amplifier section containing a P-type differential pair of P-type transistors; a second differential amplifier section containing an N-type differential pair of N-type transistors; an intermediate stage connected with outputs of the first and second differential amplifier sections and containing a first current mirror circuit of P-type transistors, and a second current mirror circuit of N-type transistors; and an output stage configured to amplify an output of the intermediate stage in power. The first differential amplifier section includes a first current source and a first capacitance between sources of the P-type transistors of the P-type differential pair and a positive side power supply voltage. The second differential amplifier section includes a second current source and a second capacitance between sources of the N-type transistors of the N-type differential pair and a negative side power supply voltage.
Method and circuitry for multi-stage amplification
In an amplifier, a first stage receives a differential input voltage, which is formed by first and second input voltages, and outputs a first differential current in response thereto on first and second lines having respective first and second line voltages. A second stage receives the first and second line voltages and outputs a second differential current in response thereto on third and fourth lines having respective third and fourth line voltages. A transformer includes first and second coils. A first terminal of the first coil is coupled through a first resistor to the first line. A second terminal of the first coil is coupled through a second resistor to the second line. A first terminal of the second coil is coupled through a third resistor to the third line. A second terminal of the second coil is coupled through a fourth resistor to the fourth line.
DC-DC converter and audio output unit
A DC-DC converter includes a first capacitor which can be charged by a power-supply voltage; a second capacitor that generates the output voltage using electric charge previously discharged by the first capacitor; a comparator that compares the output voltage with a reference voltage and outputs a comparison signal that shows whether the output voltage is below the reference voltage; multiple switches that switch to allow the first capacitor either to be charged or to discharge its charge to the second capacitor, and a controller that controls the switch timing of the multiple switches on the basis of the comparison signal.
Fully capacitive coupled input choppers
A method of differential signal transfer from a differential input Vinp and Vinn having a common mode input voltage that can be higher than the power supply voltage by providing an input chopper having Vinp and Vinn as a differential input, providing an output chopper, capacitively coupling a differential output Voutp and Voutn of the input chopper to a differential input of the output chopper, capacitively coupling a clock to the input chopper and coupling the clock to the output chopper, the clock having a first phase and a second phase opposite from the first phase, the first phase being coupled to the gates of the first and second transistors and the second phase being coupled to the gates of the third and fourth transistors, and providing protection of the gates of the first through fourth transistors from excessive voltages. Various embodiments are disclosed.
Distortion compensating apparatus, transmitter, distortion compensating method, and transfer function calculating method
An amplifier module is expressed by a model having a first filter that is a linear time-invariant filter for limiting the bandwidth of an input signal, an amplifier unit that amplifies a signal output from the first filter, and a second filter that is a linear time-invariant filter for limiting the bandwidth of a signal output from the amplifier unit. A memoryless amplifier unit calculates an output from the amplifier module when being memoryless, using AM-to-AM distortion and AM-to-PM distortion of the amplifier unit. A cross-correlation calculating unit calculates a correlation between the signal output from the amplifier module and the output calculated by the memoryless amplifier unit and calculates an estimate of a transfer function of the first filter and the second filter. A distortion compensating unit compensates the input signal based on the estimate of the transfer function and outputs the signal to the amplifier module.
Frequency synthesizer architecture in a time-division duplex mode for a wireless device
A dual frequency synthesizer architecture for a wireless device operating in a time division duplex (TDD) mode is disclosed. In an exemplary design, the wireless device includes first and second frequency synthesizers. The first frequency synthesizer generates a first oscillator signal used to generate a first/receive local oscillator (LO) signal at an LO frequency for the receiver. The second frequency synthesizer generates a second oscillator signal used to generate a second/transmit LO signal at the same LO frequency for the transmitter. The two frequency synthesizers generate their oscillator signals to obtain receive and transmit LO signals at the same LO frequency when the wireless device operates in the TDD mode.
Synthetic space vector modulation
A synthetic space vector modulation method and device for controlling a voltage source inverter and load is provided. The device and method comprise a variable frequency oscillator (VFO), a center-aligned pulse-train signal generator, a modulo-N counter, and a three-phase time division multiplexer. The VFO outputs a square wave to the modulo-N counter and a triangle wave of the same frequency to the center-aligned pulse-train signal generator, the outputs of the center-aligned pulse-train generator and the modulo-N counter are sent to the three-phase time division multiplexers, and after leaving the multiplexers, and before being sent to the VSI controller's load each positive and each negative output of the multiplexing phase is sent to a turn-on delay. The present innovation makes VSI controller acquisition and repair almost as simple as buying and repairing a transistor radio.
Electric power control system and efficiency optimization process for polyphase synchronous machine
A system and process includes continuously determining an applied armature voltage supplied to a polyphase synchronous machine for which a maximum mechanical load is characterized by a pull-out torque. The armature voltage is supplied from a power source via one of many taps of a regulating transformer. The armature voltage being supplied from the power source to the machine is changed by selecting one of the voltage levels from the taps of the regulating transformer. The tap voltage levels are selected based on the determined applied armature voltage to minimize power consumption of the machine while ensuring based on a predetermined confidence level that the pullout torque of the machine will not be exceeded.
Position control device for electric motor
Position control device for electric motor inputs deviation signal between angle command and angle detection value to position control section and calculates angular velocity command, inputs deviation signal between this angular velocity command and angular velocity detection value to speed control section and calculates torque current command, and controls, according to this torque current command, the electric motor current control section. The Position control device has disturbance observer section which inputs the torque current command and the angular velocity detection value and estimates signal corresponding to disturbance torque; rate-of-change limitation section which has limiter inputting disturbance observer output value by this disturbance observer section and performing rate-of-change limitation of upper and lower limit values of the angle command; and target value filter section which is configured by control gain equivalent to the speed control section and through which the angular velocity command from the position control section passes.
Drive control device
A drive control device having: a storage circuit configured to store a reference rotational speed table; a drive signal generation circuit configured to output a drive signal to the direct current motor; and a control circuit. When an absolute value of a difference between a second rotational speed corresponding to a first rotational direction and a third rotational speed corresponding to a second rotational direction is equal to or larger than a predetermined threshold, the control circuit creates separate rotational speed tables for the first rotational direction and the second rotational direction in which each rotational speed table indicates a relation between a rotational speed and an electric power amount per unit time, and determines an amount of electric power that is supplied to the direct current motor which corresponds to a designated rotational speed according to the rotational speed table selected in accordance with a designated rotational rotation.
Estimating method for a rotor position of a motor and estimating device for the same
An estimating method for a rotor position of a motor and an estimating device for the same are disclosed herein. The estimating method includes injecting a first high frequency signal to the motor at a first estimating angle, generating a first sensing signal of the motor in a period when the first high frequency signal is injected to the motor, injecting a second high frequency signal to the motor at a second estimating angle, generating a second sensing signal of the motor in a period when the second high frequency signal is injected to the motor, determining a quadrant of an operating angle according to the first sensing signal and the second sensing signal, and acquiring the rotor position according to the first sensing signal, the second sensing signal, and the quadrant of the operating angle.
Motor control device
A motor control device includes a feed-forward control unit configured to detect a change amount of any one of the target voltage, the applied voltage peak value, and the revolution number difference, which are a monitoring target. The control unit is also configured to manipulate an operation amount of a predetermined operation target on the basis of a magnitude of the change amount to correct the number of revolutions of the motor recognized by a controller.
Permanent magnet motor with sinusoidal back-EMF waveform and related motor controller for position sensorless drives
A system includes a permanent magnet motor having a rotor and a stator. The rotor and the stator have a configuration that causes the motor to generate a back-electromagnetic force (EMF) waveform that is substantially sinusoidal. The system also includes a motor controller having a sliding-mode observer configured to identify the back-EMF waveform and a position observer configured to estimate at least one characteristic of the motor using the identified back-EMF waveform. The stator may include multiple teeth projecting towards the rotor and multiple conductive windings, where each conductive winding is wound around a single tooth. The rotor may include multiple magnetic poles, where each magnetic pole has a span of about 60° or less. The sliding-mode observer may be configured to receive current measurements associated with three-phase signals and voltage commands generated by the motor controller. The position observer may include a proportional-integral (PI) regulator.
Vibration wave motor
Provided is a vibration wave motor including: a vibration member having an elastic body joined with a electric-mechanical energy converter; and a moving member contacting the vibration member, the vibration member and the moving member being annularly formed, the vibration wave motor frictionally driving the moving member by a motion generated at a contacting portion with the moving member of the vibration member upon application of an AC signal to the electric-mechanical energy converter. The vibration wave motor includes a centrifugal fan provided at an outer peripheral portion and/or an inner peripheral portion of a circular ring formed of the vibration member and the moving member, and the centrifugal fan rotates integrally with the moving member.
Method and apparatus for controlling Q losses through force distributions
A microelectromechanical (MEMS) package including a compressive system preferentially directs external forces, towards the MEMS sensor in a manner that affects several components of the Quality Factor (Q) of the MEMS system. Relatively rigid materials (force transfer elements) are added or deposited in strategic places along any of the edges, faces or corners of a MEMS sensor, followed by the addition of material, which by virtue of the annealing process, applies a compressive stress to all objects encased therein. As a result, vibrational modes are affected due to changes in the effective mass and spring constants of the total MEMS apparatus system, dampening particular modes and stabilizing the MEMS transducer since such modes cannot be spuriously activated due to environmental changes. By attenuating, or at least causing them to be constant, the spurious modes and their absorption of vibrational energy are predictable over all operating conditions and thus amenable to electronic controls, e.g., electrical compensation.
Stacked voltage source inverter with separate DC sources
A stacked voltage source inverter having separate DC sources is described herein. This inverter is applicable to low or medium voltage, low to medium power applications such as photovoltaic utility interface systems, battery storage application such as peak shaving with renewables, motor drive applications and for electric vehicle drive systems. The stacked inverter consists of at least one phase wherein each phase has a plurality of low voltage full bridge inverters equipped with an independent DC source. This inverter develops a near sinusoidal approximation voltage waveform with fast switching and small low pass AC output filter. A system controller controls operating parameters for each inverter. The inverter may have either single-phase or multi-phase embodiments connected in either wye or delta configurations.
The present invention related to a cell interface. The cell interface includes four diode D1 to D4. A first terminal connected to a voltage terminal of first cell; a second terminal connected to a voltage terminal of second cell; and a third terminal connected to an external voltage terminal of an external electric circuit, another external voltage terminal connected to another voltage terminal of first cell and second cell. The cell interface can prevent from occurring loop current in parallel cell.
Multilevel conversion circuit
In aspects of the invention, a multilevel conversion circuit can include a configuration for linking capacitors, including diodes, reverse-blocking semiconductor switches, and resistors, and a circuit for clamping the capacitor voltage at a specified voltage. Such a configuration can serve to reduce the number of capacitors that need detection of the voltages thereof and appropriate changing-over operation of semiconductor switches to control the capacitor voltage to a desired value. By way of aspects of the invention, desired voltages can be provided to the capacitors.
Three-level unit inverter system
In aspects of the invention, each three-level inverter unit has an output current detector. The output from each detector is given to connection wires via a resistor, the connection wires connecting the inverter units. The voltage across the resistor is detected and the deviation, or increment, of the current value of the unit concerned from the average value is determined. The rising up edge of the ON pulses for the IGBT to be controlled is delayed, corresponding to the magnitude of the deviation. Thus, the output current is balanced between the inverter units.
Voltage converting circuit and electronic device
A voltage converting circuit includes a plurality of first capacitors that are charged by a power source, a second capacitor, connected in parallel to the plurality of first capacitors, which is able to be charged to a voltage that is supplied to a load circuit, and a plurality of switching circuits, provided in such a way as to correspond to the plurality of first capacitors, each of which switches states of connection between its corresponding first capacitor and the second capacitor. The first capacitors are sequentially connected to the second capacitor through the corresponding switching circuits as charging voltages of the first capacitors reach a predetermined connection voltage that is higher than a charging voltage of the second capacitor so that the first capacitors are not short-circuited with each other.
Power supply device and arc machining power supply device
A power supply device that is applicable to both 200 V and 400 V series input power by switching the operation of an auxiliary switching circuit with a switching switch. When a relatively large output is requested, PWM control is performed to adjust the on pulse width of a control pulse signal provided to switching elements of an inverter circuit and an auxiliary switching circuit, which is operated in cooperation with the inverter circuit. When a relatively small output is requested, PSM control is performed to adjusting a phase difference of two control pulse signals provided to the same set of switching elements in the inverter circuit.
Loosely regulated feedback control for high efficiency isolated DC-DC converters
The improved DC-DC converter apparatus includes a primary side circuit and a secondary side circuit that is galvanically isolated from the primary. The primary side induces a voltage in the secondary side that provides an output voltage for driving POLs. A flux-control device measures the transformer primary side flux to control the primary side duty cycle, thereby loosely regulating the output voltage of the secondary side circuit.
Device for avoiding hard switching in resonant converter and related method
A control device that controls a switching circuit and minimizes hard switching that occurs in the switching circuit of a half-bridge resonant converter having a high-side transistor and a low-side transistor. The control device is configured to turn the high-side and low-side transistor on and, so that a square-wave voltage is applied to a primary winding of a transformer. The controller starts the switching of the half-bridge converter by first turning on the low-side transistor for a first time period useful for pre-charging a bootstrap capacitor couplable to the middle point of the half-bridge, and then turning the low-side transistor and the high-side transistor off for a second time period that immediately follows and is longer than the first time period.
Power supply apparatus and printing apparatus
The power supply includes a transformer for generating a first output voltage by a first secondary winding, and a superimposing voltage by a second secondary winding, and a driver. Furthermore, the circuit includes first and second rectifying and smoothing circuits for respectively rectifying and smoothing the first output voltage and superimposing voltage, and an adder for adding the rectified and smoothed superimposing voltage on the rectified and smoothed first output voltage to output a second output voltage. The first and second output voltages are fed back respectively by DC coupling, the fed-back first and second output voltages are respectively adjusted by first and second feedback factors, and the adjusted feedback components are combined and amplified to be applied to the driver for PWM-control.
Control of multi-phase power coverters with capacitive energy transfer
An apparatus for power conversion comprises a voltage transformation element, a regulating element, and a controller; wherein, a period of the voltage transformation element is equal to a product of a coefficient and a period of the regulating circuit, and wherein the coefficient is selected from a group consisting of a positive integer and a reciprocal of said integer.
DC-DC controller and multi-ramp signal operating method thereof
A DC-DC controller and a multi-ramp signal operating method thereof are provided. The DC-DC controller includes a ramp generating unit, a comparator, a logic circuit and a switch unit. The ramp generating unit generates a first interior-ramp signal and a second interior-ramp signal alternately. The logic circuit generates the first and second control signals according to a comparison signal of the comparator. The switch unit is configured to switch one of the first interior-ramp signal and the second interior-ramp signal alternately to a second terminal of the comparator according to the first and second control signals. When the second interior-ramp signal is switched to the comparator, the first interior-ramp signal is charged to a first voltage level by the ramp generating unit. In another switch procedure, the second interior-ramp signal is charged to a second voltage level by the ramp generating unit.
System and method for power distribution
A direct current (DC) power distribution system is provided for an aircraft. The system includes a DC system bus configured to carry electrical power from a source of electrical power to a plurality of electrical loads. The electrical loads are onboard the aircraft. The DC system bus includes a load side. The system includes a plurality of power converter modules that are electrically coupled in series to the DC system bus on the load side of the DC system bus. The power converter modules are configured to be electrically attached to corresponding sub-sets of the electrical loads. At least one of the power converter modules is configured to be short circuited in response to a fault such that the at least one power converter module does not supply electrical power to the corresponding subset of the electrical loads.
A structure which enables highly accurate detection of the temperature of the stator windings of a dynamo-electric machine. A terminal base (12) integrated with a stator by resin molding is provided with: positioning sections (13, 14, 15) for three-phase stator windings (100, 101, 102); and a positioning section (16) for a thermistor (17). The positioning section (16) is disposed between the positioning sections (14, 15). The thermistor (17) is insert molded on the terminal base (12).
Rotating electric machine
The rotating electric machine is configured in such a way that a surface of the heat sink, on which the cooling fins of the heat sink are formed, faces the housing; and a plate, which blocks the surface of the housing facing the heat sink and forms a wind passage between the heat sink and the plate, intervenes between the cooling fins and the surface of the housing facing the heat sink; and outside air is aspirated from an inlet formed on the protective cover, and then, the outside air is passed through the wind passage formed between the heat sink and the plate so as to be passed through a window formed on the housing, and is exhausted, by the cooling fan of the rotor, from an outlet formed on the housing.
Rotor and motor
A rotor having an axial direction includes at least a pair of rotor cores arranged in the axial direction, and a field magnet located between the rotor cores and magnetized in the axial direction. Each of the rotor cores includes a plurality of claw poles extending in the axial direction. Each of the rotor cores includes a magnetic flux controlling section, which appropriately causes a magnetic flux to flow to the claw poles.
Power receiving device and contactless power feeding system
A power receiving device includes a resonant coil, an electromagnetic coupling coil, a rectifier circuit, a smoothing circuit, a voltage converter circuit which converts a voltage value of DC power into another voltage value, a control circuit which obtains voltage and current values of the DC power input to the voltage converter circuit, calculates an impedance from the obtained voltage and current values, and generates a pulse width modulation signal for controlling an output voltage and an output current of the voltage converter circuit, and a load to which the output voltage and the output current of the voltage converter circuit are input. The duty ratio of the pulse width modulation signal is determined so that the impedance calculated by the control circuit becomes close to an impedance for the maximum efficiency in transferring the AC power. The power receiving device is included in a contactless power feeding system.
Wireless power transmission system for selectively powering one or more of a plurality of receivers
A wireless power transmission system according to an embodiment of the present invention is a wireless power transmission system performing non-contact power transmission from a wireless power feeder selectively to a plurality of wireless power receivers, and each of the plurality of wireless power receivers comprises a power receive resonance circuit including a power receive coil and a power receive capacitor, and the wireless power feeder comprises a power feed coil and a control circuit supplying AC power to the power feed coil. The control circuit in the wireless power feeder performs power supply selectively to the plurality of wireless power receivers by changing frequency of the AC power on the basis of a magnetic field resonance effect between the power feed coil and the power receive coil.
Method and apparatus to facilitate providing power to remote peripheral devices for use with a movable barrier operator system
Operating power (207 and/or 209) is wirelessly transmitted (101) within a movable barrier operator system (200) to at least one remote peripheral device (204) to thereby provide at least a portion of the remote peripheral device's instantaneous power consumption requirements. By these teachings, this remote peripheral device and the movable barrier operator for the movable barrier operator system are able to transmit information there between separate and apart from such wireless transmission of operating power. Such an exchange might comprise, for example, one or more separate wireless transmissions that are distinct and separate from the wireless power transmissions.
Active power management architecture and managing method thereof
Disclosed in an active power management architecture, including a remote power management system having a database; a power distribution unit communicated with the remote power management system through an internal network; a plurality of electronic devices each includes a power supply unit; and a plurality of transmission cables respectively connected to the power distribution unit and the power supply units of the electronic devices for outputting power of the power distribution unit to the power supply units. The information of the power supply units is transmitted from the power supply units to the power distribution unit through the transmission cables in compliance with a power line communication protocol, and the power distribution unit is configured to transmit the information to the database, such that the remote power management system gives an instruction to the power distribution unit to control the power distribution unit and the power supply units.
Method and circuitry to adaptively charge a battery/cell
The present inventions, in one aspect, are directed to techniques and/or circuitry to applying a charge pulse to the terminals of the battery during a charging operation, measure a plurality of voltages of the battery which are in response to the first charge pulse, determine a charge pulse voltage (CPV) of the battery, wherein the charge pulse voltage is a peak voltage which is in response to the first charge pulse, determine whether the CPV of the battery is within a predetermined range or greater than a predetermined upper limit value and adapt one or more characteristics of a charge packet if the CPV is outside the predetermined range or is greater than a predetermined upper limit value.
Battery with an internal microcontroller that draws different currents from the cells internal to the battery based on the temperature of the battery
A rechargeable battery with an internal microcontroller, a memory and a temperature sensor. The microcontroller draws a current from the cells internal to the battery used to power device to which the battery is attached. Normally, the microcontroller, is in a first operating mode in which the microcontroller draws a relatively low current. During these periods the temperature sensor generates a signal representative of the temperature of the battery. When the signal from the temperature sensor indicates the battery temperature exceeds a threshold temperature, the microcontroller enters a second operating mode in which the microcontroller draws a relatively high current. While in the second operating mode the microcontroller records in the memory data regarding the fact that the battery temperature exceeded the reference temperature and the amount of time the battery was at a temperature above the reference temperature.
Workpiece detection mechanism
A workpiece detection mechanism may include a sensor part detecting the workpiece; a sensor amplifier part connected to the sensor part and processing a signal from the sensor part; a battery part supplying electric power to the sensor amplifier part; and a wireless transmitting part transmitting by wireless the signal from the sensor amplifier part to an outside of the vacuum chamber. The sensor part, the sensor amplifier part, the battery part and the wireless transmitting part may be provided in one end effector provided in the workpiece transfer mechanism and are not connected directly to any member other than the end effector.
Battery module with converter and decoupling switch
A battery module and an arrangement including a number of battery modules connected in series are disclosed. An energy store has a positive and a negative connection. A boost converter has a first and a second converter output. The energy store is connected at the positive connection of the energy store to a first connection and at the negative connection of the energy store to a second connection. The first converter output is connected to a first compensation connection and the second converter output is connected to a second compensation connection. The converter is designed to draw energy from the energy store and to provide the energy to the converter outputs of the converter in the form of current.
Coil unit, non-contact power transmitting apparatus, non-contact power receiving apparatus, vehicle, and non-contact power supply system
A coil unit includes a second resonance coil that has a plurality of unit coils and performs at least one of transmission and reception of electric power to and from a first resonance coil spaced apart from the second resonance coil via electromagnetic resonance with the first resonance coil. The directions of magnetic fields formed by the unit coils are the same.
Battery charger for portable electronic equipment
There is offered a battery charger for a portable electronic device that has a simple structure and is capable of detecting that the portable electronic device is connected to the battery charger. A first power supply line is connected to a positive terminal (+) of a rechargeable battery, while a ground line is connected to a negative terminal (−) of the rechargeable battery. An output transistor is connected between the first power supply line and a second power supply line. The output transistor is connected to a Vbus terminal of a USB connector through the second power supply line. A controller outputs a voltage of an H level to the Vbus terminal to detect a change in a voltage at the Vbus terminal, and judges whether the portable electronic device is connected to the USB connector based on a result of the detection. The controller turns the output transistor on when the portable electronic device is judged to be connected to the USB connector.
Battery protection IC and battery device
Provided are a battery protection IC and a battery device, which are capable of ensuring safety even when a charger is connected in a reverse direction. The battery protection IC includes a first switch element provided between an overcurrent detection terminal and a VDD terminal so that, when the charger is connected with reverse polarity, the first switch element interrupts a current path between the overcurrent detection terminal and the VDD terminal. The battery protection IC further includes a second switch element provided between a charge control terminal and the VDD terminal so that, when the charger is connected with reverse polarity, the second switch element interrupts a current path between the charge control terminal and the VDD terminal.
Active balancing circuit for balancing battery units
A balancing circuit for balancing battery units includes balancing modules. Each of the balancing modules includes a first and a second switch unit, and a first and a second inductive device, wherein the first inductive device is coupled to the second inductive device. The balancing modules include a first and a second balancing module, respectively coupled to a first and a second battery unit of the battery units. The first inductive device of the first balancing module takes away an excess energy of the first battery unit according to a switch state of the first switch unit of the first balancing module, and stores an inductive energy corresponding to the excess energy in the second balancing module. The second inductive device of the second balancing module provides the inductive energy for the second battery unit according to a switch state of the second switch unit of the second balancing module.
Wireless power transmission device
A wireless power transmission device includes a main body and a position-limiting plate. The main body includes a triggering button. The triggering button is located at a first side of the main body. The position-limiting plate is located at a second side of the main body and movable relative to the main body. When an electronic device is placed on the main body and contacted with the triggering button, the triggering button issues an enabling signal to the position-limiting plate. In response to the enabling signal, the position-limiting plate is moved toward the main body in order to fix the electronic device on the main body. In a case that an electric current provided to the triggering button is interrupted, the triggering button stops issuing the enabling signal. Consequently, the position-limiting plate is moved away from the main body and separated from the electronic device.
Power distribution, management, and monitoring systems and methods
Managing electrical power usage in a power distribution system. Power usage data indicative of electrical current flow through electrical outlets in the system are collected and displayed for a user. The user may select an outlet and issue a command to control current flow through that outlet. Environmental data may also be collected and displayed. Outlets in different Cabinet Power Distribution Units (CDUs) in different locations may be clustered for reporting and control. A database structure provides a “system” table for data descriptive of the system, a “tower” table for data descriptive of outlets and other elements in the system, an “infeed” table for data descriptive of input electrical power, and an “outlet” table for data descriptive of electrical power flowing through the outlets.
System for tracking and allocating renewable energy contributions to a modular renewable energy system
A modular photovolataic (PV) array system includes a PV array installed onto a fleet vehicle such as a trailer, bus etc., a host control system into which a plurality of fleet vehicles can connect to collectively generate electricity, and a subscriber system which collectively tracks energy generation and allocates respective contributions to the system.
Electrical energy and distribution system
This invention concerns an electrical energy supply and distribution system. The system is able to handle both large centralized electricity generation plants, as well secondary energy sources which are becoming increasingly important. These sources may or may not be connected to deliver electrical energy to a 50 Hz AC power distribution grid. The system comprises a supply side where multiple electrical energy generators are connected via connections ports, involving conditioning circuitry, into a single DC electrical energy source. This energy source may be supplied to a common inverter system to convert it to AC for transmission on over a power grid. A rectifier may take the AC power from the grid and delivers it to loads. Whether an AC grid in involved or not, on the delivery side energy is delivered to multiple loads via connection ports involving conditioning circuitry. Any of the generators or loads may be taken offline or connected back into the system at will.
Multilevel converter and a method for controlling multilevel converter including balancing cell voltages
A multilevel converter for controlling a multilevel converter is provided. The multilevel converter is a single phase converter with one phase leg, or a three phase converter with three phase legs, the phase legs of the three phase converter are interconnected in a star-configuration. The single phase converter with one phase leg, or each three phase converter with three phase legs, phase leg includes switching cells, and each switching cell includes semi-conductor switches arranged to selectively provide a connection to a corresponding energy storage element. The converter also includes a controller, which is provided to monitor the DC voltage of the energy storage elements, and the controller is provided to control the switching of each switching cell. The phase leg of the single phase converter, or each phase leg of the three phase converter, includes two parallel branches of switching cells, the branches being configured in a closed circuit.
Wall box device for managing energy
An electronic device for managing energy is described. The electronic device includes a voltage sensor module that monitors a voltage waveform. The voltage sensor module includes discrete components. The electronic device includes a current sensor module that monitors a current waveform. The current sensor module includes discrete components. The electronic device is coupled to the voltage sensor module and to the current sensor module. The computing module determines a phase margin based on the voltage waveform and the current waveform. The electronic device includes a control module coupled to the computing module. The control module controls a load based on the voltage waveform, current waveform and phase margin. The control module includes discrete components. The voltage sensor module, the current sensor module, the computing module and the control module are housed within a wall box.
Apparatus and method for communication over power lines
An apparatus and method are provided for communicating over power lines. The apparatus includes a coupling modem that is situated between a power line and a device. The coupling modem is configured to demodulate a signal received from the power line into a sine signal and a cosine signal. The coupling modem is also configured to modulate a communicated bit stream received from the device into a transmitted signal in order to impose the transmitted signal onto the power line.
Constraint weighted regulation of DC/DC converters
A converter unit to improve overall recovered power in a photovoltaic array configuration. Each photovoltaic panel in the photovoltaic array may be coupled to a respective converter unit, which may include a controller to sense an output voltage and output current produced by the solar panel, and manage the output voltage of a corresponding power converter to optimize and regulate the resultant bus voltage to a point which reduces overall system losses, maintains a low loss condition, and removes series-string non-idealities when the panels are series connected. The controller may also adapt to output condition constraints. Instead of single-port regulation, a combination of input voltage and output voltage management and regulation may be performed within the converter. The source voltage and current characteristic may be shaped to correspond to an optimized power curve at the desired bus voltage to allow MPPT tracking according to the DC voltage bus. The optimized power curve may be tracked to hold the DC-bus voltage at the desired operating point.
Multilevel power converter
Aspects of the invention are directed to a multilevel power converter the includes a DC power supply assembly having a positive terminal, a negative terminal, and a zero terminal; a first semiconductor switch series circuit composed of first through sixth semiconductor switches connected in series between the positive terminal and the negative terminal. The converter can include a second semiconductor switch series circuit composed of a first bidirectional switch, seventh and eighth semiconductor switches, and a second bidirectional switch connected in series between the connection point of the first and second semiconductor switches and the connection point of the fifth and sixth semiconductor switches, a first capacitor connected in parallel with a series circuit of the third and fourth semiconductor switches and a second capacitor connected in parallel with the second semiconductor switch series circuit.
Method and system for fault protection
Systems and methods for a fault protection are provided that can be implemented in a hybrid electric vehicle (HEV) to limit the magnitude of a current that flows when an AC-to-chassis fault (ACF) occurs between an AC connection and the chassis of the HEV. An electric machine having a winding, an inverter sub-module (ISM) having a first switch and a second switch, and fault protection elements (FPEs), coupled to the ISM, are provided. The winding is coupled to the ISM coupled via the AC connection. The FPEs can include, for example, first and second inductances. To limit the magnitude of the current, the current can be passed along a first current path that includes the second inductance when the first switch is closed, and can be passed along a second current path that includes the first inductance when the second switch is closed.
The present invention provides a PTC device having a laminate which includes a PTC component having a laminar PTC element defined by main surfaces which are facing each other, laminar electrodes extending on the main surfaces, and a first insulation layer, the PTC component, and a second insulation layer laminated in this listed order. The laminate has a first end and a second end, and a first side electrode and a second side electrode are disposed on the first end and the second end, respectively; one of laminar electrodes of the PTC component extends while being separated from the first side electrode and the second side electrode; the other is separated from the first end, and extends to the second end and is electrically connected to the second side electrode. At least the first side electrode extends at the first end along an entirety of a thickness direction of the laminate and further extends on a first edge portion of one of the insulation layers; and the first edge portion has a through-hole which reaches the one laminar electrode. The through-hole has an electrically conductive element which electrically connects the one laminar electrode and the first side.
Switching control circuit and switching power supply apparatus
In a switching control circuit, a length of a soft start period is set in accordance with a time constant of an external circuit connected to a soft start terminal of a switching control IC. A current flowing through a switching element is detected at a current detection terminal. When the value of the current exceeds a first predetermined current value, a second overcurrent protection function is performed, so that a switching operation is stopped. When the value of the current exceeds a second predetermined current value, a second overcurrent protection function is performed, so that the switching element is quickly turned off and a current peak value is limited. On the basis of a voltage at the soft start terminal after the soft start period has elapsed, one of the setting and non-setting of the first overcurrent protection function is selected.
Electrical feed-through spacer and connectivity
An insulated glazing unit is provided. The unit includes a spacer frame separating a pair of substrates. The spacer frame has a length and a width transverse to the length. The unit further includes a conductive element passing through the width of the spacer frame. The unit further includes a first conductive component within the spacer frame. The first conductive component is in electrical communication with the conductive element. The conductive element is adapted for electrical communication with a second conductive component on a side of the width of the spacer frame opposite the first conductive component.
Method for in situ multiple cable terminations
The method of attaching a pulling head to two or more wires or cables for installation in a conduit, comprising providing a first area for attaching the pulling head, placing two or more wire or cable supply spools on a first side of the first area, placing a receiving spool on the opposite or second side of the first area, feeding a portion of the wires or cables from the wire or cable supply spools onto the receiving spool, placing a terminating table in the first area below the wires or cables, cutting the wires or cables at staggered length from the receiving spool, stripping a portion of the covering from the wires or cables from the outer diameter of the two or more wires or cables, installing a connection onto each of the two or more wires or cables.
Apparatus and method of establishing optical communication channels between a steerable array of laser emitters and an array of optical detectors
An array of light beam emitter sections comprises: a substrate having a surface divided into an array of sections; and a grouping of light emitters disposed at each surface section and configured to emit light beams at different emission angles with respect to the surface. Also disclosed is apparatus for establishing optical communication channels between the array of light beam emitter sections and an array of light detectors. Further disclosed is a method of establishing optical communication channels between the array of light emitter sections and the array of light detectors by mapping at least one light emitter of each grouping with a light detector of the detector array to establish optical communication channels between the arrays based on the mappings.
Oxygen laser oscillator
The disclosed invention relates to a method of realizing an oxygen laser oscillator. The laser oscillator relating to one aspect of the invention is provided with a laser cavity consisting of a high-reflectivity mirror (108) and a partial-reflectivity output mirror (107), a singlet oxygen generator (105), a focusing optics (109), and a shutter (113). Singlet oxygen (O2(1Δg)) is supplied to the chamber (102A) which is pumped beforehand by a vacuum pump. In order to produce a laser oscillation, the shutter (113) is pulled out so that the radiation from O2(1Δg) goes back and forth inside the laser cavity. This causes a stimulated emission from O2(1Δg), and a pulsed laser is extracted from the output mirror (107).
Socket connector with contact terminal having oxidation-retarding preparation adjacent to solder portion perfecting solder joint
An electrical connector having a fusible element for mounting on a substrate includes an insulative housing and a contact terminal retained in the insulative housing. The contact terminal includes a resilient contacting arm extending beyond a mating face of the insulative housing and a soldering portion for mating with the fusible element. A gelatinous flux is deployed on the fusible element, and/or on the soldering portion, and/or between the fusible element and the soldering portion, and then flux is dried to immovably fix the fusible element with respect to the soldering portion. The dried flux will be re-juvenile to clean and remove an oxidized layer originally existed on the soldering portion so as to achieve robust welding quality. Besides, a method for trimming an electrical connector to have robust welding properties is also disclosed.
A socket includes a tubular frame body into which a base part of an electric lamp bulb is to be inserted, the frame body in which a terminal metal fitting to be electrically connected with the base part is to be provided, the frame body having a side wall formed with two slits and formed with an arm piece between the slits, the arm piece which has a first face to be opposed to the terminal metal fitting and a second face opposite to the first face, the side wall formed with a butting face, when the arm piece is deformed outward of the frame body, a part of the second face of the arm piece is in contact with the butting face.
The present disclosure relates generally to connector plugs and jacks and in particular to an audio connector plug and jack that can be used in place of the a standard low profile plug and electronic devices using low profile plug receptacles. The connector plug has a reduced plug length and thickness, an intuitive insertion orientation and a smooth, consistent feel when inserted and extracted from its corresponding receptacle connector. A portion or all of the plug connector may include a flexible material that allows the connector to bend with respect to an insertion axis along which the plug connector is designed to be inserted into a corresponding receptacle connector. A corresponding connector jack may be configured to receive the reduced length and thickness connector plug.
Connector assembly with improved cooling capability
A connector includes a cage that has two side walls, a top cover and a rear wall that are combined to form a hollow enclosure. The enclosure is separated into two module-receiving bays by at least one spacer with a top and bottom wall that extends between the sidewalls to form a central portion between a top and bottom bay, the central portion acting as an air passage between a front face and the sides of the connectors. Air openings are formed in the sidewalls of the cage assembly and they communicate with the central portion. The bottom wall of the spacer is provided with a large opening that extends a substantial distance of module-receiving bay and provides an air flow path from the air openings to the bottom module-receiving bay. An insert with apertures in communication with the central portion can be positioned.
Incomplete fitting prevention connector
An incomplete fitting prevention connector includes a first connector, a second connector that is fitted to the first connector, and a connector position assurance lock that is slidably mounted to an outer side of the second connector. The first connector includes a male beak, a short spring and a terminal. The second connector includes a female lock passing over the male beak and a short-circuit removal plate part inserted between the short spring and the terminal. A draw-in slanted surface is formed at a leading end of the male beak, a restoring force for returning the female lock to its original position serves as a driving force for fitting the connector when the female lock reaches the draw-in slanted surface, and the insertion force of the short-circuit removal plate part applied between the short spring and the terminal is reduced.
Card connector with ejector
A card connector (100) includes an insulative housing (1), a number of contacts (2) retained in the insulative housing, a metal shield (3) covering the insulative housing for defining a receiving space (10), an ejector comprising an operating member (4), and an actuating member (5) actuated by the operating member. The actuating member includes a post (51) located in the insulative housing, a pivoting plate (52) pivotedly assembled on the post, and a torsion spring (50). The torsion spring has a helical portion (501) installed around the post, a first flexible beam (5021) retaining with the pivoting plate, and a second flexible beam (5022) secured with the operating member.
Magnetic coupling systems
This patent pertains to magnetic coupling systems. One implementation includes magnetic jumper cables, which include magnetic couplers and elongate, insulated, electrically-isolated electric conductors.
Weld connection protector cap
A weld cable connector system that includes a first terminal and a terminal protection system. The first terminal includes a first lock feature. The first terminal is configured to couple with a welding component and to conduct a welding power. The terminal protection system includes a cap, a base coupled to the first terminal, and a tether coupled to the base and to the cap. The cap includes a first mating lock feature. The cap is configured to removably couple with the first terminal in a first locking position to separate the first terminal from an external environment. The first mating lock feature is configured to interface with the first lock feature.
Electrical connection system
An electrical connection system configured to terminate electrical connectors and to transmit digital electrical signals having a data transfer rate of 5 Gigabits per second (Gb/s) or higher. The system includes a first parallel mirrored pair of terminals having a planar connection portion and a second pair of parallel mirrored terminals having a cantilever beam portion and a contact points configured to contact the first terminals. The cantilever beam portions are generally perpendicular to the planar connection portions. The terminals cooperate to provide consistent characteristic impedance. The connection system further includes an electromagnetic shield that longitudinally surrounds the terminals. The connection system is suited for terminating wire cables transmitting digital signals using data transfer protocols such as Universal Serial Bus (USB) 3.0 and High Definition Multimedia Interface (HDMI) 1.3.
Electrical terminal assembly
An electrical terminal assembly includes a base having a body including a first end and a second end. First and second opposed base beams extend from the first end of the body in a first direction. A spring clamp has a clamp base and first and second opposed spring beams extending from the clamp base in the first direction and disposed over the first and second base beams biasing the first and second base beams toward one another. The body of the base is configured to permit the spring clamp to be inserted onto the base in a second direction normal the first direction.
Operating fuse deflector
Shields or deflectors are supported on fuse barrels and positioned to protect power linemen and other electrical workers on high voltage distribution lines against injuries resulting from the ejection of sparks and fuse debris that occurs when a fuse melts or operates due to excessively high electrical currents, by securing the deflectors on the fuse barrels in a position immediately below the fuse barrels where the deflectors can effectively direct the dangerous materials away from the workers.
Apparatus and methods for powering motor control centers using backfeed modules
A power backfeed apparatus includes a housing configured be removably positioned in a compartment of a motor control center (MCC), a contact assembly supported by the housing and comprising at least one contact configured to face a corresponding at least one power conductor of the MCC when the housing is disposed in the compartment and a power cable connector supported by the housing and configured to support connection of an external power cable thereto when the housing is disposed in the compartment, the power cable connector configured to be electrically coupled to the at least one contact of the contact assembly. A contact engagement mechanism forces the at least one contact into contact with the at least one power conductor to electrically couple the at least one contact and the at least one power conductor.
A connector is attachable to an object and connectable to a card inserted rearward. The connector has a predetermined portion which is located at a position same as that of an upper surface of the object. The connector comprises a housing and a contact. The contact has a held portion and a spring portion. The held portion is held by the housing. The spring portion has a contact portion and a guide portion. The contact portion is located forward of the held portion. The guide portion is located forward of the contact portion. When the card is inserted in the connector, the contact portion is brought into contact with the card. In the meantime, the guide portion is moved downward without being brought into contact with any part of the connector, and at least a part of the guide portion is located below the predetermined portion.
Man-made composite material and man-made composite material antenna
The present invention relates to a man-made composite material and a man-made composite material antenna. The man-made composite material is disposed in a propagation direction of a plane electromagnetic wave and convert it into a spherical wave. Reverse extensions of the spherical wave intersect at a virtual focus. A line connecting the virtual focus to a point on the second surface of the man-made composite material and a line perpendicular to the man-made composite material form an angle θ therebetween, which uniquely corresponds to a curved surface in the man-made composite material. A set formed by points having the same angle θ forms a boundary of the curved surface to which the angle θ uniquely corresponds. Each point on the curved surface to which the angle θ uniquely corresponds has a same refractive index. Refractive indices of the man-made composite material increase gradually as the angle θ increases.
Wireless communication modules with reduced impedance mismatch
A wireless communication module is disclosed. A circuit board includes a first sidewall, a second sidewall, and a third sidewall. The second sidewall is perpendicular to and connected between the first and third sidewalls. Multiple interlayer traces are formed in the circuit board. An antenna integrated circuit is disposed on the second sidewall of the circuit board and is connected to the interlayer traces. An antenna is formed on the first sidewall of the circuit board. One of the interlayer traces is connected between the antenna integrated circuit and the antenna. At least one external solder pad is formed on the third sidewall of the circuit board. Another one of the interlayer traces is connected between the antenna integrated circuit and the external solder pad.
Film-like member and attaching method thereof
An attaching method of attaching a film-like member shaped like a plane face to a member having a surface shaped like a curved face including a first step of determining, by an analysis, a region where stress higher than that in a case where the film-like member is shaped like the plane face is generated when the film-like member is attached to the member shaped like the curved face, a second step of forming a slit at the region where the stress higher than that in the case where the film-like member is shaped like the plane face is generated, and a third step of attaching the film-like member having the formed slit to the member having the surface shaped like the curved face.
Adjustable spiral antenna for portable use
A spiral, helical antenna is configured to produce a generally circular polarized radiation pattern covering a range of frequencies, over a ground plane. The antenna is comprised of a spring-like spiral conductor that may be held in compression by a size and shape regulating outer nonconductive membrane. The assembly may be compressed and or extended to adjust the antenna for best performance in a particular situation. The assembly may be compressed into a generally flattened state for storage and or transportation, and extended at a later time for use. Accurate antenna dimensions and good performance are afforded by the use of high quality spring materials in conjunction with precise membrane dimensions.
RFID tag circuits with floating differential inputs
An Integrated Circuit (IC) for an RFID tag and a tag including such an IC are provided where the IC includes at least two rectifiers and two antenna ports for connecting to two respective antennas with at least three of the four antenna terminals not sharing a reference potential of the IC. According to other embodiments, the antenna ports are also electrically isolated from each other.
Wireless electronic devices with a metal perimeter including a plurality of antennas
Wireless electronic devices may include a ground plane and a metal perimeter around the ground plane. The metal perimeter may include a plurality of antennas and may provide a front surface and/or edge surfaces of the wireless electronic devices.
Antenna and portable wireless terminal
An antenna includes a first antenna element, a second antenna element, and a third antenna element. The second antenna element is placed between the first antenna element and the third antenna element. A first connecting end, a second connecting end, and a third connecting end are each placed in a position that is closer to a third apical end than to a first apical end. Thus, even in the case of an antenna including three antenna element that are used for an identical system, the antenna can be provided with a suppressed difference in radiation efficiency among frequency bands to which the antenna elements respectively correspond.
Antenna having linear array antenna unit
An antenna may include a linear array antenna unit, a first switch, and a second switch. The linear array antenna unit may be configured to include a plurality of cable elements linearly arranged and coupled to each other. The first switch may include one end coupled to a ground and another end coupled to at least one of the plurality of cable elements of the linear array antenna unit. The second switch may include one end coupled to a power feed point and another end coupled to at least one of the plurality of cable elements. The plurality of cable elements of the linear array antenna unit may form one of a first antenna structure and a second antenna structure according to the switching operations of the first and second switches.
The present invention discloses a wireless device. The wireless device includes a housing, formed by a metal material, a wireless module disposed inside the housing, and an antenna, disposed outside the housing, coupled to the wireless module via a external socket interface disposed on the housing, for transmitting and receiving signals corresponding to the wireless module.
Inner connecting element of a cavity power divider, cavity power divider and manufacturing method thereof
Embodiments of the present disclosure disclose an inner connecting element of a cavity power divider, the cavity power divider and a manufacturing method thereof. Two ends of the inner connecting element of the cavity power divider are respectively an input end and an output end, and the inner connecting element of the cavity power divider is in a sheet form. The cavity power divider comprises a cavity and at least three connectors. The cavity is provided with one connector at an input end thereof and with at least two connectors at an output end thereof. The connecting element is included in the cavity, with the input end and the output end of the connecting element being connected respectively with the connectors at the input end and the output end of the cavity.
Voltage tuning of microwave magnetic devices using magnetoelectric transducers
Tunable microwave magnetic devices that provide increased performance with reduced size, weight, and cost. The disclosed microwave magnetic devices are voltage-tunable devices that include ferrite substrates. To tune the devices, the magnetic permeability of the respective ferrite substrates is varied by external, voltage-tuned, magnetic fringe fields created by one or more magnetoelectric (ME) transducers.
Method for rapid battery exchange in electric vehicles
A system and method for the rapid exchange of batteries in an electric vehicle. The electric vehicle contains a removable battery housed in the vehicle's undercarriage. The electric vehicle moves through the exchange system either by propelling itself or by being propelled by the system. As the vehicle is propelled forward, the removable battery within the vehicle is unlocked from the vehicle and replaced with a charged battery. The charged battery forces the removable battery out of the rear of the vehicle as the vehicle moves forward through the exchange. The vehicle remains powered throughout the exchange process. Once the charged battery is aligned in position under the vehicle and connected to the vehicle through corresponding contacts, the charged battery is located into place in the vehicle's undercarriage and the vehicle is ready for additional driving.
Nonaqueous electrolyte secondary battery
A nonaqueous electrolyte secondary battery according to an embodiment of the present invention includes an electrode assembly, a nonaqueous electrolyte, and a container. The electrode assembly includes a positive electrode, a negative electrode, and a separator. The negative electrode is opposed to the positive electrode. The separator is disposed between the positive electrode and the negative electrode. The container houses the electrode assembly and the nonaqueous electrolyte. The container has a positive electrode terminal and a negative electrode terminal. The positive electrode terminal is electrically connected to the positive electrode. The negative electrode terminal is electrically connected to the negative electrode. The container further includes a short-circuiting mechanism that short-circuits the positive electrode terminal and the negative electrode terminal if the internal pressure rises. The nonaqueous electrolyte contains lithium bis(oxalato)borate (LiBOB).
Apparatus for harvesting and storing piezoelectric energy and manufacturing method thereof
Disclosed are an apparatus for harvesting/storing piezoelectric energy, including: a substrate having a groove at a side thereon; a piezoelectric MEMS cantilever having an end fixed to the substrate and the other end floating above the groove, and configured to convert and store an external vibration into electric energy; and a mass formed at one end of the piezoelectric MEMS cantilever and configured to apply a vibration, and a manufacturing method thereof.
Pump assembly for a fuel cell system
A pump assembly including a first subassembly and a second subassembly. The first subassembly includes a fluid conduit; an inlet fluidly coupled to the liquid reactant dispenser and the fluid conduit; an outlet fluidly coupled to a reaction chamber and the fluid conduit; and a diaphragm, defining a portion of the fluid conduit, that flexes to pump the liquid reactant from the inlet to the outlet. The diaphragm preferably includes an actuation point coupled to the diaphragm, wherein the liquid reactant is substantially contained within the first subassembly during pumping. The second subassembly is couplable to the first subassembly, and is fluidly isolated from the liquid reactant. The second subassembly includes an actuator that couples to the actuation point, wherein operation of the actuator causes pumping action.
Fuel cell vehicle and method of controlling fuel cell and storage battery provided in the fuel cell vehicle
A fuel cell vehicle includes a fuel cell, a storage battery, a fuel-cell-output-controller, and a remaining-capacity-detector. An output of the fuel cell is supplied to a load. An output of the storage battery is supplied to the load. The fuel-cell-output-controller is configured to control the output of the fuel cell. The remaining-capacity-detector is configured to detect a current remaining capacity in the storage battery. The fuel-cell-output-controller is configured to determine and control a reference output value for the output of the fuel cell in accordance with a change in the current remaining capacity in the storage battery, and configured to increase the reference output value as an output of the load becomes higher referring to a state of the output of the load for a specific period of time.
Fuel cell system and fuel cell activation method
Whether a gas leakage occurs or not is accurately determined in a simple configuration. When receiving a request for activation of a fuel cell, a control unit opens a main shutoff valve to start hydrogen gas supply from a hydrogen tank to the fuel cell. The control unit thereafter performs gas leakage determination processing for a hydrogen piping system. If it is determined in the gas leakage determination processing that a gas leakage occurs, a gas leakage alert is output to stop the activation of the fuel cell. If it is determined in the gas leakage determination processing that a gas leakage does not occur, a compressor is activated to start oxidant gas supply to the fuel cell, and the fuel cell continues being operated.
Solid oxide fuel cell stack heat treatment methods and apparatus
Systems and methods are provided for fuel cell stack heat treatment. An eductor may be used to recycle air into the air inlet stream or to recycle fuel into the fuel inlet stream. An eductor may also be used to exhaust air away from the furnace. The stack heat treatment may include stack sintering or conditioning. The conditioning may be conducted without using externally supplied hydrogen.
Micro-tubular solid oxide fuel cell arrangement
A micro-tubular solid oxide fuel cell arrangement includes two micro-tubular elements having a tubular inner electrode, covered on its outer surface with an electrolyte, the electrolyte being covered on its outer surface with a tubular outer electrode; and a connection element arranged between the micro-tubular elements for connecting one end of one micro-tubular element to one end of the other micro-tubular element, where the micro-tubular element has a first end portion with an inner cone arranged in the tubular inner electrode and a second end portion with an outer cone arranged in the tubular outer electrode, where the connection element comprises a metallic interconnector plate having a first side and an opposite second side, where the plate is provided with at least one hole; a first metallic connector on the first side and arranged around the hole and a second metallic connector on the second side and arranged around the hole.
Method of reducing tabbing volume required for external connections
Various embodiments are described herein for an electrode assembly for a stacked-cell battery. The electrode assembly comprises a first active material layer; a first current collector layer adjacent to and in electrical contact with an outer surface of the first active material layer; a tab element having an end lead portion and a second lead portion, the end lead portion being in electrical contact with at least one of the first active material layer and the first current collector layer, and the second lead portion extending away from the end lead portion and being substantially adjacent to a surface of at least one of the first active material layer and the first current collector layer and is adapted to provide an electrical connection to the electrode assembly; and an insulative layer covering an inner contact area of the second lead portion to electrically insulate this portion of the tab element.
Phase separated silicon-tin composite as negative electrode material for lithium-ion batteries
A composite of silicon and tin is prepared as a negative electrode composition with increased lithium insertion capacity and durability for use with a metal current collector in cells of a lithium-ion battery. This electrode material is formed such that the silicon is present as a distinct amorphous phase in a matrix phase of crystalline tin. While the tin phase provides electron conductivity, both phases accommodate the insertion and extraction of lithium in the operation of the cell and both phases interact in minimizing mechanical damage to the material as the cell experiences repeated charge and discharge cycles. In general, roughly equal atomic proportions of the tin and silicon are used in forming the phase separated composite electrode material.
Passive safety device and internal short tested method for energy storage cells and systems
A passive safety device for an energy storage cell for positioning between two electrically conductive layers of the energy storage cell. The safety device also comprising a separator and a non-conductive layer. A first electrically conductive material is provided on the non-conductive layer. A first opening is formed through the separator between the first electrically conductive material and one of the electrically conductive layers of the energy storage device. A second electrically conductive material is provided adjacent the first electrically conductive material on the non-conductive layer, wherein a space is formed on the non-conductive layer between the first and second electrically conductive materials. A second opening is formed through the non-conductive layer between the second electrically conductive material and another of the electrically conductive layers of the energy storage device. The first and second electrically conductive materials combine and exit at least partially through the first and second openings to connect the two electrically conductive layers of the energy storage device at a predetermined temperature.
Rechargeable battery having desirable safety performance
The present application provides a rechargeable battery including a battery case and a battery cap coupled to the battery case. The battery cap includes a conductive cap plate; a first electrode electrically connected to the cap plate; a second electrode insulatively connected to the cap plate, the second electrode being in electrical connection with one end of a conductive plate for securing the second electrode to the conductive cap plate; and a conductive turnover component in electrical connection with the conductive cap plate, the turnover component being initially separated from the conductive plate and capable deforming to contact other end of the conductive plate due to high pressure in the battery case, so as to short-circuit the first electrode and the second electrode.
Electrode lead comprising protection layer for anti-corrosion and secondary battery comprising the same
Provided are an electrode lead of a secondary battery where a protection layer for anti-corrosion is selectively formed at an electrode lead portion at the cell outside and a secondary battery including the same. Since a protection layer for anti-corrosion is selectively formed only on an electrode lead portion at the cell outside, the corrosion of the electrode lead may be prevented from an external environment and the resistance of a cell may be reduced simultaneously.
Core pack manufacturing apparatus
A core pack manufacturing apparatus for preventing or substantially preventing an iron from contacting a cell or a protective circuit part in a process of soldering a connection tab of the cell to a connection terminal of the protective circuit part. A core pack manufacturing apparatus for soldering a connection tab connected to a cell to a connection terminal of a protective circuit part includes a cap including a first cover configured to cover the cell, and a second cover extending from a side of the first cover and configured to cover the protective circuit part, the second cover having an opening part configured to expose the connection tab and the connection terminal through the second cover for soldering.
Current collector having built-in sealing means, and bipolar battery including such a collector
In lithium bipolar batteries, to improve sealing against electrolytes between adjacent electrochemical cells, mixed current collector-electrode supports are produced, in a form of a metal grate or raised metal sheet housed in a strip made of electrical insulator material, the function of the periphery of which is to constitute a sealing area.
Method for manufacturing flexible OLED (organic light emitting display) panel
The present invention provides a method for manufacturing an OLED panel. The method is simple and fixes a first substrate and a flexible material layer together by forming a support layer on the first substrate and forming, through etching, a groove in the support layer and coating UV resin in the groove so as to obtain a flexible material layer that is flat, operable, and not prone to deformation. After the formation of an OLED element, the portion outside an area delimited by the groove is trimmed off and the first substrate and the flexible material layer are separated to obtain a flexible OLED panel. This method allows for automation and does not cause damage to the components.
Mask and method for forming the same
A mask is disclosed. The mask includes at least one support base having at least one opening formed therein, where at least a portion of the boundary of the opening is tapered. The mask also includes at least one positioning layer disposed on the at least one support base, where at least one through opening corresponding to and aligned with the at least one opening is formed in the at least one positioning layer. In addition, at least a portion of the boundary of the through opening is tapered.
Method of manufacturing organic light emitting display panel
A method of manufacturing an organic light emitting display panel forming a protective insulating film in a luminescent region without causing defects in a pattern is disclosed. The method of manufacturing an organic light emitting display panel includes forming a substrate having a luminescent region and a pad region, simultaneously forming a light emitting cell in the luminescent region and an organic pattern in the pad region, forming a protective insulating film over the substrate, bonding the substrate provided with the protective insulating film and the sealing substrate using an adhesive film formed in a region corresponding to the luminescent region, cutting the bonded substrate provided with the protective insulating film and the sealing substrate into a plurality of unit panels to expose the pad region, and removing the protective insulating film and the organic pattern in the exposed pad region.
Provided is a display device that even in the case where microlenses are formed to increase the light extraction efficiency, can decrease damage on an OLED caused by the production of the microlenses. The display device includes a first substrate; light emitting elements provided on the first substrate and located in correspondence with pixels arrayed in a matrix; a second substrate; a light collection layer provided on the second substrate and including, on the side facing the light emitting elements, at least one convex lens in correspondence with each of the pixels; and a light-transmissive layer that is provided between the first substrate and the second substrate so as to be in contact with the lens and has a refractive index lower than that of the light collection layer.
Substrate glass for LEDs with layer containing scattering particles and method for production thereof
A composite material for LED's is provided. The composite material has a coating comprising scattering particles with an index of refraction greater than 1.6.
Package of environmental sensitive electronic element
A package of an environmental sensitive electronic element including a first substrate, a second substrate, an environmental sensitive electronic element, a flexible structure layer and a filler layer is provided. The environmental sensitive electronic element is disposed on the first substrate and located between the first substrate and the second substrate. The environmental sensitive electronic element includes an anode layer, a hole injecting layer, a hole transporting layer, an organic light emitting layer, a cathode layer and an electron injection layer. The flexible structure layer is disposed on the environmental sensitive electronic element and includes a soft layer, a trapping layer and a protective layer. The material of the trapping layer is the same as the material of the electron injection layer. The filler layer is disposed between the first substrate and the second substrate and encapsulates the environmental sensitive electronic element and the flexible structure layer.
Light-emitting element, light-emitting device, and electronic device
Disclosed is a light-emitting element with a good carrier balance and manufacturing method thereof which does not require the formation of the heterostructure. The light-emitting element includes an organic compound film containing a first organic compound as the main component (base material) between an anode and a cathode, wherein the organic compound film is provided in contact with the anode and with the cathode. The first organic compound further includes a light-emitting region to which a light-emitting substance is added and includes a hole-transport region to which a hole-trapping substance is added and/or an electron-transport region to which an electron-trapping substance is added. The hole-transport region is located between the light-emitting region and the anode, and the electron-transport region is located between the light-emitting region and the cathode.
Organic electronic devices comprising a layer comprising at least one metal organic compound and at least one metal oxide
The present invention relates to an organic electronic device including a first electrode, a second electrode and a first organic layer interposed between the first electrode and the second electrode, wherein the first organic layer comprises at least one metal organic compound and at least one metal oxide. The present invention further relates to an apparatus comprising the organic electronic device according to the present invention.
Host materials for OLEDs
Novel aryl silicon and aryl germanium host materials, and in particular host materials containing triphenylene and pyrene fragments, are described. These compounds improve OLED device performance when used as hosts in the emissive layer of the OLED.
Phosphorescent materials and devices, having high device efficiency, stability, and processability are disclosed. The compounds are specific embodiments of an iridium complex, having the following structure: In the compounds of Formula I, n is 2, X—Y is acetylacetonate, R1 is hydrogen or alkyl, R2 is hydrogen, and at least one R3 is alkyl.
Organic electroluminescent element
Provided is an organic electroluminescent device (organic EL device) that is improved in luminous efficiency, sufficiently secures driving stability, and has a simple construction. The organic electroluminescent device includes an organic layer including a light-emitting layer between an anode and cathode laminated on a substrate, and at least one layer of the organic layer contains a carbazole compound represented by the following formula (1). It is advantageous to incorporate the carbazole compound as a host material into the light-emitting layer. In the formula (1), A represents a direct bond or an n-valent group, E represents oxygen or sulfur, and n represents an integer of 2 to 4.
Highly efficient carbazole-based compound, and organic electroluminescence device comprising same
The present invention relates to a highly efficient carbazole-based compound and to an organic electroluminescence device including the same. According to the present invention, provided are a compound for an organic electroluminescence device and an organic electroluminescence device including the compound, in which a carbazole-based phosphine oxide compound, which is a compound intended for an organic electroluminescence device, is employed to overcome the problems of conventional compounds for organic electroluminescence devices, i.e. those of instable thermal stability and low efficiency, and particularly, the compound of the present invention exhibits superior efficiency in pure-blue phosphorescent devices.
Light emitting element and light emitting device
One object of the present invention is to provide a light emitting element that includes an organic compound and an inorganic compound and has low driving voltage. The light emitting element of the invention includes a plurality of layers between a pair of electrodes, wherein the plurality of layers includes a layer that contains a carbazole derivative represented by a general formula (1) and an inorganic compound exhibiting an electron accepting property with respect to the carbazole derivative. By utilizing this structure, electrons are transported between the carbazole derivative and the inorganic compound and carriers are internally generated, and hence, the driving voltage of the light emitting element can be reduced.
Organic light-emitting material, device and method
Composition having an organic semiconducting material and a triplet-accepting material of formula (I) with a triplet energy level lower than the triplet energy level of the organic semiconducting material, in which each Ar is optionally substituted aryl or heteroaryl group, n is 1-3, m is 1-5, q is 0 or 1, each R3 is H or a substituent, and each R4 is H or a substituent. Where R4 is not H, R4 and (Ar)m bound to the same carbon atom may be linked by a direct bond or a divalent group. Where n or m is at least 2, adjacent Ar groups may be linked by a divalent group. Where q=0, R3 is not H and is linked to (Ar)n by a direct bond or a divalent group.
Compound for organic electronic device
The present invention relates to new naphthalene carbodiimide (NTCDI) derivatives, and organic electronic device using the same and especially to an organic solar cell. The new NTCDI derivatives are used as acceptor, electron transport material, and doped electron transport materials.
Display device and method for manufacturing the same
A display device includes a substrate, a first conductive film pattern including a gate electrode and a first capacitor electrode on the substrate, a gate insulating layer pattern on the first conductive film pattern, a polycrystalline silicon film pattern including an active layer and a second capacitor electrode on the gate insulating layer pattern, an interlayer insulating layer on the polycrystalline silicon film pattern, a plurality of first contact holes through the gate insulating layer pattern and the interlayer insulating layer to expose a portion of the first conductive film pattern, a plurality of second contact holes through the interlayer insulating layer to expose a portion of the polycrystalline silicon film pattern, and a second conductive film pattern including a source electrode, a drain electrode, and a pixel electrode on the interlayer insulating layer.
Resistive memory device, method of fabricating the same, and memory apparatus and data processing system having the same
A resistive memory device capable of implementing a multi-level cell, a method of fabricating the same, and a memory apparatus and data processing system including the same are provided. The resistive memory device includes a lower electrode, a first phase-change material layer formed over the lower electrode, a second phase-change material layer formed to surround an outer sidewall of the first phase-change material layer, and an upper electrode formed over the first phase-change material layer and the second phase-change material layer.
Superlattice phase change memory device
According to one embodiment, a memory device includes a stacked film stacked in a superlattice structure. The stacked film includes a first layer, a second layer, and a third layer different in composition. The first layer is provided between the second layer and the third layer. The second layer includes a first atom reversibly moved by application of energy. The third layer includes a second atom reversibly moved by application of energy. The second atom is different from the first atom.
Resistive RAM devices and methods
The present disclosure includes a high density resistive random access memory (RRAM) device, as well as methods of fabricating a high density RRAM device. One method of forming an RRAM device includes forming a resistive element having a metal-metal oxide interface. Forming the resistive element includes forming an insulative material over the first electrode, and forming a via in the insulative material. The via is conformally filled with a metal material, and the metal material is planarized to within the via. A portion of the metal material within the via is selectively treated to create a metal-metal oxide interface within the via. A second electrode is formed over the resistive element.
Memory cells containing metal oxides
Some embodiments include memory cells which have first and second metal oxides between first and second electrodes. The first and second electrodes include metal. The first metal oxide has at least two regions which differ in oxygen concentration relative to one another. One of the regions is a first region and another is a second region. The first region is closer to the first electrode than the second region and has a greater oxygen concentration than the second region. The first metal oxide includes one or both of hafnium oxide and zirconium oxide. The second metal oxide is directly against the first metal oxide and includes a different metal than the first metal oxide. There is a substantially linear continuous oxygen-concentration gradient extending across an entirety of the first metal oxide.
Methods of forming embedded resistors for resistive random access memory cells
Provided are memory cells including resistive switching layers having silicon, oxygen, and nitrogen as well as embedded resistor layers having a metal, silicon, and nitrogen. In some embodiments, silicon may be partially or completely replaced with aluminum. The embedded resistor may also have oxygen. A resistive switching layer directly interfaces an embedded resistor layer of the same cell. A portion of each layer forming this interface may be formed substantially of silicon nitride and may be formed in the same deposition chamber without breaking vacuum. For example, these portions may be formed by sequential atomic layer deposition cycles. However, silicon concentrations in these portions may be different. Specifically, the silicon concentration of the embedded resistor portion may be less than the silicon concentration of the resistive switching layer portion. This variation may be achieved by varying one or more process conditions during fabrication of the memory cell.
Magnetic memory device and method of magnetic domain wall motion
A magnetic memory device comprises a first electrode, a second electrode, a laminated structure comprising plural first magnetic layers being provided between the first electrode and the second electrode, a second magnetic layer comprising different composition elements from that of the first magnetic layer and being provided between plural first magnetic layers, a piezoelectric body provided on a opposite side to a side where the first electrode is provided in the laminated structure, and a third electrode applying voltage to the piezoelectric body and provided on a different position from a position where the first electrode is provided in the piezoelectric body.
Method and system for providing a magnetic junction configured for precessional switching using a bias structure
A method and system provide a magnetic junction usable in a magnetic device. The magnetic junction includes a first pinned layer having a first pinned layer magnetization, a first nonmagnetic spacer layer, and a free layer having an easy axis. The first nonmagnetic spacer layer is between the first pinned layer and the free layer. The magnetic junction is configured such that the free layer is switchable between a plurality of stable magnetic states when a write current is passed through the magnetic junction and such that the free layer employs precessional switching.
Perpendicular magnetic random access memory (MRAM) device with a stable reference cell
A magnetic random access memory (MRAM) element is configured to store a state when electric current flows therethrough. The MRAM element includes a first magnetic tunnel junction (MTJ) for storing a data bit and a reference bit MTJ for storing a reference bit. The data bit MTJ and reference bit MTJ are preferred to be of identical structure that includes a magnetic free layer (FL) having a switchable magnetization with a direction that is perpendicular to a film plane. The direction of magnetization of the FL is determinative of the data bit stored in the at least one MTJ. The identical structure further includes a magnetic reference layer (RL) having a magnetization with a direction that is perpendicular to the film plane, and a magnetic pinned layer (PL) having a magnetization with a direction that is perpendicular to the film plane. The direction of magnetization of the RL and the PL are anti-parallel relative to each other in the data bit MTJ for storing data bit, wherein when electric current is applied to the first MTJ, the magnetization orientation of the FL switches during a write operation, whereas, the direction of magnetization the RL and the PL remain the same. The direction of magnetization of the FL, the RL and the PL are parallel relative to each other in the reference bit MTJ for storing reference bit, the magnetization orientation of the FL does not switch under normal read operations.
Electromechanical polymer-based linear resonant actuator
A linear resonant actuator includes: (a) an electromechanical polymer (EMP) actuator; (b) a substrate having a first surface and a second surface, the EMP actuator being mounted on the first surface of the substrate; (c) clamping structure provided on two sides of the substrate so as to allow the substrate to vibrate freely between the two sides of the substrate, in response to an electrical stimulation of the EMP actuator; and (d) an inertial mass element having a contact surface for attaching to the substrate at the second surface of the substrate. The inertial mass element may include contact structures provided to attach to the substrate along thin parallel lines. In one embodiment, the inertial mass element may have a “T” shape, or any suitable shape for stability.
Light-emitting diodes on a wafer-level package
A light emitter and methods of constructing the same is disclosed. The light emitter is disclosed as including a jumper chip and one or more light sources, such as Light Emitting Diodes (LEDs). The light sources are connected to the jumper chip via conductive traces manufactured with semiconductor processing techniques. The jumper chip is disclosed as having a plurality of isolated conductive vias, thereby allowing the jumper chip to present multiple different bonding areas that are electrically isolated from one another.
Packaged LED device with castellations
Packaged LED devices include a first lead having a first recess in a bottom surface, a second lead having a second recess in a bottom surface, a LED die located over a top surface of at least one of the leads and electrically connected to the leads, and a package located around the LED die, the first lead and the second lead. The package contains an opening in its upper surface exposing at least the LED die. The package also contains a first castellation and a second castellation in a side surface of the package, such that the first castellation exposes at least one of the first lead and a first platable metal which is electrically connected to the first lead, and the second castellation exposes at least one of the second lead and a second platable metal which is electrically connected to the second lead.
Semiconductor light emitting device and method for manufacturing same
According to one embodiment, a semiconductor light emitting device includes: a semiconductor layer; a first electrode; a first interconnection layer; a second electrode; a second interconnection layer; a support substrate; a bonding layer; a first terminal; and a second terminal. The support substrate has a third face facing the semiconductor layer, the first interconnection layer, and the second interconnection layer and a fourth face opposite to the third face. The support substrate has a first opening extending from the fourth face to the first interconnection layer and a second opening extending from the fourth face to the second interconnection layer. The bonding layer is provided between the support substrate and each of the semiconductor layer, the first interconnection layer, and the second interconnection layer.
Optoelectronic element and manufacturing method thereof
An optoelectronic element includes an optoelectronic unit having a first top surface; a first metal layer on the first top surface; a first transparent structure surrounding the optoelectronic unit and exposing the first top surface; and a first contact layer on the first transparent structure, including a connective part electrically connected with the first metal layer.
Light source device including a high energy light source and a wavelength conversion member, illuminating device comprising the same, and vehicle
A light source device is provided. The light source device comprises a semiconductor light-emitting element; and a wavelength conversion member for converting a wavelength of a light emitted from the semiconductor light-emitting element. The semiconductor light-emitting element has a light-emitting peak wavelength of not less than 380 nanometers and not more than 420 nanometers. The light emitted from the semiconductor light-emitting element has a light energy density of not less than 0.2 kW/cm2. The wavelength conversion member contains at least one fluorescent substance selected from the group consisting of a (Sr1-x,Bax)3MgSi2O8:Eu2+ (0≦x≦1) fluorescent substance, a (Y1-y,Gdy)3(Al1-z,Gaz)5O12:Ce3+ (0≦y≦1, 0≦z≦1) fluorescent substance, and an Eu3+-activated fluorescent substance. The light source device has a high output and a high light-emitting efficiency.
Method for producing a luminescence conversion substance layer, a composition therefor and a component comprising such a luminescence conversion substance layer
One embodiment of the invention describes a method for producing a luminescence conversion substance layer on a substrate with a semiconductor element that emits a primary radiation during operation. A composition includes a luminescence conversion substance, a matrix material and a solvent. The composition is applied to a substrate. At least part of the solvent is removed, with the result that the luminescence conversion substance layer is formed on the substrate.
Semiconductor light emitting device with light extraction structures
Structures are incorporated into a semiconductor light emitting device which may increase the extraction of light emitted at glancing incidence angles. In some embodiments, the device includes a low index material that directs light away from the metal contacts by total internal reflection. In some embodiments, the device includes extraction features such as cavities in the semiconductor structure which may extract glancing angle light directly, or direct the glancing angle light into smaller incidence angles which are more easily extracted from the device.
Semiconductor light emitting device and illumination apparatus including the same
There is provided a light emitting device including a plurality of nanoscale light emitting structures spaced apart from one another on a first conductivity-type semiconductor base layer, the plurality of nanoscale light emitting structures each including a first conductivity-type semiconductor core, an active layer and a second conductivity-type semiconductor layer, and an electrode connected to the second conductivity-type semiconductor layer. The electrode is disposed between a first nanoscale light emitting structure and a second nanoscale light emitting structure among the plurality of nanoscale light emitting structures, and the electrode has a height lower than a height of the plurality of nanoscale light emitting structures.
Semiconductor light emitting device and manufacturing method of the same
A semiconductor light emitting device includes a substrate; a base layer made of a first conductivity-type semiconductor and disposed on the substrate; a plurality of nanoscale light emitting units disposed in a region of an upper surface of the base layer and including a first conductivity-type nano-semiconductor layer protruding from the upper surface of the base layer, a nano-active layer disposed on the first conductivity-type nano-semiconductor layer, and a second conductivity-type nano-semiconductor layer disposed on the nano-active layer; and a light emitting laminate disposed in a different region of the upper surface of the base layer and having a laminated active layer.
Light emitting device
A light emitting device including a light emitting structure having a first conductive semiconductor layer, an active layer disposed under the active layer and a second conductive semiconductor layer disposed under the active layer; a trench formed in a portion of the light emitting structure; a current barrier layer in the trench and configured to hinder current supply to the active layer at a portion where the trench is located and to block the active layer over the trench from emitting light; and a first electrode on the first conductive semiconductor layer above the portion where the trench is located.