13th week of 2012 patent applcation highlights part 32 |
Patent application number | Title | Published |
20120076129 | AUTOMATIC USER REDUNDANCY DETERMINATION - The embodiments presented herein provide an automated process for provisioning a user in a communication system. A session manager, which can be a server in the communication system that provides call connection and routing, may receive registration request from communication device (e.g. a cellular telephone, an IP-enabled phone, etc.). The session manager may determine one or more characteristics about the communication device and/or determine a load on one or more other session managers in a cluster of session managers. Based on both the communication device characteristics and/or the loads on the two or more session managers, the session manager can determine a set of session managers, which may include a primary session manager and a secondary session manager, which can manage the user data for the communication device. This session manager set information may then be sent to the communication device and to other session managers in the cluster. The set of session managers may then manage the user data for the communication device. | 2012-03-29 |
20120076130 | CABLE MODEM AND PRIORITY SETTING METHOD THEREOF - A cable modem and a priority setting method thereof receive signaling packets from telephone interfaces and local area network (LAN) interfaces, and preset the signaling packets from telephone interfaces as VoIP packets with a first priority and the signaling packets from the LAN interfaces as LAN packets with a second priority. The cable modem and the priority setting method pick out RTP packets from the VoIP and LAN packets, and classify the RTP packets as VoIP RTP packets and LAN RTP packets. The cable modem and the priority setting method determine whether all of the IP phones are on-hook, and update the LAN RTP packets from the second priority to the first priority in response to all of the IP phones being on-hook. The cable modem and the priority setting method allocate bandwidths for the signaling packets corresponding to the first priority and the second priority. | 2012-03-29 |
20120076131 | METHODS, SYSTEMS AND COMPUTER READABLE MEDIA FOR SUPPORTING A PLURALITY OF REAL-TIME TRANSPORT PROTOCOL (RTP) MULTIPLEXING ENABLEMENT METHODS IN A MEDIA GATEWAY - Methods, systems, and computer readable media for supporting a plurality of RTP multiplexing enablement methods in a media gateway are disclosed. According to one aspect, a system includes a media gateway controller configured to receive a signaling message to establish a call from a peer node in a first network, an a media gateway configured to perform a first and second RTP multiplexing enablement process on the media portion of the call, wherein the first RTP multiplexing enablement process includes sending a real-time transport control protocol (RTCP) Application packet to the peer node, refraining from performing RTP multiplexing on packets sent to the peer node until a reply RTCP Application packet is received from the peer node, and receiving RTP multiplexed packets from the peer node, and wherein the second RTP multiplexing enablement process includes obtaining an Internet protocol (IP) realm identifier that identifies the first network, accessing configuration data in the media gateway using the IP realm identifier to determine a predefined multiplexing enablement action for packets destined for the first network, and executing the determined predefined multiplexing enablement action on packets sent to the peer node in the first network. | 2012-03-29 |
20120076132 | SWITCH AND TELEPHONE SEARCHING METHOD - A switch includes a call record table recording at least one outgoing call. When the switch receives an incoming call, the switch searches the call record table to find a mapping outgoing call with a destination telephone number the same as a source destination telephone number of the incoming call. Then the switch obtains a communication line number of the mapping outgoing call in the call record table, and sends a ringing signal to a local telephone corresponding to the obtained communication line number. | 2012-03-29 |
20120076133 | System for Interconnecting Standard Telephony Communications Equipment to Internet - Apparatus include a communication predelivery receiver, configured to communicate with and relay both IP addressed overhead and IP addressed payload data from an originating communication device. The communication predelivery receiver includes a screener configured to, when the communication predelivery receiver is in communication with the originating communication device, receive certain data including first IP addressed data and second IP addressed data of corresponding first and second initiated communications. The communication predelivery receiver is configured and connected within a network so the first IP addressed data and the second IP addressed data are processed differently. For the first initiated communication, the first payload data is converted, after the point in time at which the screener received the first IP addressed data, from IP addressed first payload data to another network signal. For the second initiated communication, the second payload data is delivered without so converting the second payload data. | 2012-03-29 |
20120076134 | CITIZENS' EMERGENCY NETWORK SYSTEM AND METHOD - A system and method to provide an emergency communication network including a first responder device and at least one recipient by using a local agency communication node configured to relay communications using, in part, a VoIP interface to retransmit a communication received at a local agency as a ham communication received by at least one ham radio communication node which may be sent to and received by one or more recipients though a VoIP interface over the Internet. | 2012-03-29 |
20120076135 | IP TELEPHONE PROVISIONING SYSTEM AND METHODS - A method and apparatus relate to receiving and storing data through an interface for an Internet Protocol (IP) telephone database. The interface receives a request related to provisioning a function of an IP telephone. In response to receiving the request, data from the IP telephone database may be transmitted to the IP telephone to be used to provision the function. | 2012-03-29 |
20120076136 | METHODS AND APPARATUS TO PROVIDE A CALL-ASSOCIATED CONTENT SERVICE - Methods and apparatus to provide a call-associated content service to voice over Internet protocol (VoIP) devices are disclosed. An example method includes performing a telephone number database query at a call session control function server to obtain a first uniform resource identifier for a destination and to obtain a second uniform resource identifier for the destination, establishing a first communication session to the destination based on the first uniform resource identifier, and initiating a second communication session on behalf of a calling device to the destination based on the second uniform resource identifier, the destination to provide content associated with the first communication session via the second communication session. | 2012-03-29 |
20120076137 | Configuring Guest Users for a VoIP Device of a Primary User - A method to providing VoIP telephony to a plurality of users of a VoIP network includes authenticating and registering a primary user to a VoIP device to support call signaling associated with the primary user. A guest user subscriber of the VoIP network having a guest user directory number is authenticated in response to a password. The guest user directory number is mapped to the unique hardware identifier of the VoIP device, and a second set of VoIP parameters are downloaded from the VoIP network to the VoIP device in order to support call signaling associated with the guest user. VoIP calls are then within the VoIP network in response to the mappings of the primary user directory number and the guest user directory number to the same unique hardware identifier. | 2012-03-29 |
20120076138 | METHOD AND APPARATUS FOR ROUTING DATA - A method and apparatus for handling internet access telephone calls made via cable company telephone services. A head end data terminal receives cable signals and converts them into individual signals. An intelligent switch detects signals destined for an internet service provider and routes those signals on a separate path to the internet service provider. A central switch routes the other signals along a telephone network. A computer program can control the steps of receiving cable signals, converting them into voice band signals, routing the signals that are not for the intended recipient to a central switch, multiplexing the signals for the intended recipient together, and sending the multiplexed signals to the intended recipient. | 2012-03-29 |
20120076139 | NODE, SWITCH, AND SYSTEM - According to one embodiment, a node is capable of conforming to one of a plurality of Ethernet standards and includes: an Ethernet controller unit that performs auto-negotiation with a switch to exchange information concerning an interface speed, to determine an interface speed to be used based on the information concerning the interface speed, and to receive information including a setting Ethernet standard set as an Ethernet standard to be used; a storage unit that stores a node's available Ethernet standard which is an Ethernet standard to which the node can conform; and a controller that performs setting such that the node operates using a coincident standard between the Ethernet standard stored in the storage unit and setting Ethernet standard and connects a link to the switch. | 2012-03-29 |
20120076140 | Method and Apparatus for Improving Packet Processing Performance Using Multiple Contexts - A network processing device having multiple processing engines capable of providing multi-context parallel processing is disclosed. The device includes a receiver and a packet processor, wherein the receiver is capable of receiving packets at a predefined packet flow rate. The packet processor, in one embodiment, includes multiple processing engines, wherein each processing engine is further configured to include multiple context processing components. The context processing components are used to provide multi-context parallel processing to increase throughput. | 2012-03-29 |
20120076141 | METHODS AND APPARATUS TO LIMIT TRANSMISSION OF DATA TO A LOCALIZED AREA - One example method of limiting transmission of data involves generating an Internet datagram that includes digital content and an Internet protocol (IP) header. It is determined whether the digital content comprises localized data that may be transmitted to other devices within a network boundary. If the digital content comprises localized data, a time to live (TTL) parameter of the IP header of the Internet datagram is set to a value that represents a number of times the digital content may be transmitted within the network boundary, with the value being less than or equal to five. After the TTL parameter is set to a value less than or equal to five, the Internet datagram is transmitted. Other embodiments are described and claimed. | 2012-03-29 |
20120076142 | PACKET COMMUNICATION DEVICE AND PACKET COMMUNICATION METHOD - A packet communication device for switching packets to be transferred in packet communication which is time-managed in constant cycles, the packet communication device includes a changing section configured to change a portion of a first packet to be transmitted in each of the constant cycles. | 2012-03-29 |
20120076143 | BROADCASTING METHOD AND COMMUNICATION DEVICE - A broadcasting method and a communication device are disclosed by the present invention. The method includes: receiving a first data packet; and if the currently received first data packet is a repeated data packet, discarding the currently received first data packet when the times that the currently received first data packet is capable of being forwarded is less than or equal to the times that is determined according to a pre-stored hop parameter of the first data packet. After receiving the repeated data packet, a device further determines, according to a judgement result, whether to discard the data packet or continue forwarding the data packet, thereby improving the reliability of sending the data packet in the broadcasting manner. | 2012-03-29 |
20120076144 | INFORMATION PROCESSING APPARATUS, IMAGE PROCESSING APPARATUS, CONTROL METHOD, AND STORAGE MEDIUM - An information processing apparatus which make it possible to search from an information processing apparatus, for an IPv6-compatible image processing apparatus which has an IPv6 network address designated by the information processing apparatus. A device management application determines search conditions, and specifies information associated with a designated network. Further, the device management application generates a IPv6 multicast address using the thus specified information, transmits a search message designating the IPv6 multicast address, and receives a response transmitted from an image processing apparatus associated with the IPv6 multicast address. | 2012-03-29 |
20120076145 | PSEUDO-WIRE PROVIDING AN IN-BAND CONTROL CHANNEL USING AN OFFSET - A method implemented by a first provider equipment (PE) device to enable operations, administration and management (OAM) functionality over a pseudo-wire (PW) between the first PE device and a second PE device, wherein the PW traverses a packet switched network and carries control channel messages and a flow of data packets, and where the packet switched network includes nodes that use information outside a pseudo-wire label stack of the data packets for determining multi-path routing, the method including receiving a control channel message at the first PE to be forwarded over the pseudo-wire to the second PE, and prefixing the control channel message with a pseudo-flow header to ensure that the control channel message is forwarded over a same route by the nodes of the packet switched network as the data packets of the flow, thereby enabling OAM functionality to be accurately performed for the pseudo-wire. | 2012-03-29 |
20120076146 | Method for transmitting data - A method is described for transmitting data between participants of a serial, ring-shaped communications arrangement in which the participants are serially connected to one another, wherein a data packet is passed from a participant provided as a master to further participants provided as slaves, wherein the data packet is passed from slave to slave, and wherein address information of the data packet is altered by each slave. | 2012-03-29 |
20120076147 | Method and System for Realizing Transmission of Message Between an Extended Processor and a Switch Chip - The invention discloses a method and system for realizing transmission of message between an extended processor and a switch chip. The switch chip amends the destination MAC of the received first message to be transmitted to the extended processor as the first destination MAC, and then transmit the first message to the extended processor, wherein the first destination MAC corresponds to the service physical port of the switch chip for receiving the first message; the extended processor can resolve the first destination MAC to learn that the first message comes from the service physical port. The method and system of the invention can realize transmission of message between the extended processor and the switch chip. | 2012-03-29 |
20120076148 | MODEM AND PACKET PROCESSING METHOD - A modem communicates with a data source over multiple signal channels. The modem receives multiple data packets originally sent by the data source and at least one correcting packet loading reassembly information over the signal channels, and determines if one or more of the data packets originally sent by the data source are lost. The modem determines if the received data packets are enough to recover the one or more lost data packets, and recovers the one or more lost data packets using the received data packets and the reassembly information if the received data packets are enough to recover the one or more lost data packets. The modem removes the correcting packet loading the reassembly information and sends out the received data packets and the one or more recovered data packets. | 2012-03-29 |
20120076149 | Transmission bandwidth quality of service - A bandwidth limiting circuit provides limiting the bandwidth of a group of virtual channels at a transmitting port to a maximum value. A limiting circuit includes a register that is repeatedly incremented with a threshold value, which threshold value is related to the desired maximum bandwidth for the group. The register is decremented by the frame length, in bytes, of the frame transmitted from one of the virtual channels belonging to the group. A comparator enables frame transmission for the group if the register value is greater than zero. A bandwidth guarantee circuit provides at least the bandwidth specified by the limiting circuit. The guarantee circuit enables one of the groups for frame transmission based on a fairness algorithm when the outputs of comparators of each of the limiting circuit are low. | 2012-03-29 |
20120076150 | CONTROLLED INTERCONNECTION OF NETWORKS USING VIRTUAL NODES - Methods, apparatuses, and systems for controlling interconnections between nodes using virtual nodes are described. A physical node—such as a router, bridge, switch, etc.—stores a virtual cost associated with a virtual link that links virtual nodes of the physical node. A first physical port and a second physical port of the physical node are designated as belonging to a first virtual node and a third physical port of the physical node is designated as belonging to the second virtual node. The first physical port is associated with a first network partition and the second physical port is associated with a second network partition. The physical node transmits a routing information packet that includes the virtual cost. | 2012-03-29 |
20120076151 | Multi-Bridge LAN Aggregation - A method and system for multi-bridge LAN aggregation is disclosed. The method includes aggregating a plurality of LANs coupling a host to a first and a second intermediate network device. The system includes an intermediate network device. The intermediate network device includes a multi-bridge engine. The multi-bridge engine includes a tunnel engine coupled to a bridge interconnect port and a first physical port. | 2012-03-29 |
20120076152 | SYSTEM AND METHOD FOR PRIORITY SCHEDULING OF PLURALITY OF MESSAGE TYPES WITH SERIALIZATION CONSTRAINTS AND DYNAMIC CLASS SWITCHING - The present invention provides a preemptive priority scheduling system and method for optimal load balancing of messages and preserving the lightweight allocation resources in an intersystem communication. The invention also provides a system and method for scheduling of messages of a plurality of classes in an intersystem communication. | 2012-03-29 |
20120076153 | STATISTICS MODULE FOR NETWORK PROCESSORS IN VIRTUAL LOCAL AREA NETWORKS - Described embodiments provide a method of operating a network processor coupled to a network via a communication link. An input/output adapter receives a data packet. A classification module provides control values of the data packet to a statistics module. The statistics module determines (i) updatable statistics based on the control values, and (ii) an address of a statistics bin in a memory of the network processor corresponding to the statistics. Updated values of the statistics are stored at the corresponding address. Values at selected addresses are processed by a control processor of the network processor, generating traffic characteristics for the data packets. The control processor adjusts operation of the network processor based on the traffic characteristics. | 2012-03-29 |
20120076154 | METHOD, APPARATUS AND SYSTEM FOR ADJUSTING RESOURCE DELEGATION IN NETWORK - A network device for adjusting resource delegation in a network includes a first network device and a second network device that coordinate and manage a resource. The second network device may release a resource occupied by services that are capturable, and allocate the resource to high-priority services that request the resource according to a resource delegation adjustment request message and resource delegation information carried in the resource delegation adjustment request message, which solves the problem that the resource usage of the high-priority services is not able to be satisfied in the case of insufficient resource, improves the utilization efficiency of the resource, and therefore enhances user experience. | 2012-03-29 |
20120076155 | METHOD FOR PROCESSING MULTIMEDIA STREAMS - A method, machine readable medium, system, and device are disclosed. In one embodiment the method comprises determining whether one or more components that comprise a multimedia stream require real-time processing, if at least one of the one or more components require real-time processing, assigning the one or more components that require real-time processing to one or more real-time processes, and assigning any remaining components to one or more non-real-time processes. | 2012-03-29 |
20120076156 | Dual-Port Ethernet Traffic Management for Protocol Conversion - At least two communications cards are utilized to communicate with at least two Ethernet ports, each having unique MAC and IP addresses, and at least two different protocols. At least two central processing units (CPUs) are coupled to the at least two communications cards through a manageable Ethernet switch. One of the at least two CPUs is a primary (main) CPU and is capable of communicating using a limited number of native Ethernet protocols. Another one or more of the at least two CPUs is dedicated to performing conversion of additional, more complicated protocols to be sent to the primary CPU in at least one of its native Ethernet protocols. This off-loads the primary CPU from having to handle these additional, complicated protocols, thereby reducing the amount of protocol software/firmware required to be integrated with the primary CPU with a subsequent savings in boot-up time and background software overhead. | 2012-03-29 |
20120076157 | ENHANCED ACCESS CHANNEL MASKS FOR xHRPD - Disclosed is a method of performing Pseudo-random-Noise (PN) quadrature covering for transmitting data via an access channel. Such method is achieved by receiving a 42-bit access long code mask MI | 2012-03-29 |
20120076158 | METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING DATA IN SINGLE CARRIER FREQUENCY DIVISION MULTIPLE ACCESS SYSTEM - The present invention provides a method for transmitting and receiving data in a single carrier frequency division multiple access system to which a precoding matrix is applied, and to a transmitting/receiving apparatus for same. The method for transmitting data comprises the steps of: applying selected mapping algorithm (SLM) sequences of an SLM sequence subset corresponding to a precoding matrix, to respective data; selecting the SLM sequence in which each of the applied data has the smallest peak to average power ratio (PAPR) value; and transmitting the index of the selected SLM sequence and data to which the selected SLM sequence is applied. The method for receiving data, to which a precoding matrix is applied, comprises the steps of: receiving the index of the SLM sequence selected from the SLM sequence subset corresponding to the precoding matrix, and data to which the selected SLM sequence is applied; and removing the SLM sequence from the data to which the SLM sequence is applied using the SLM sequence indicated by the index, in order to recover data. | 2012-03-29 |
20120076159 | METHOD AND APPARATUS FOR GENERATION AND AMPLIFICATION OF LIGHT IN A SEMI-GUIDING HIGH ASPECT RATIO CORE FIBER - A planar laser gain medium and laser system. The novel laser gain medium includes an active core having a high aspect ratio cross-section with a fast-axis dimension and a slow-axis dimension, signal claddings adapted to form reflective boundaries at fast-axis boundaries of the core, and a material adapted to minimize reflections at slow-axis boundaries of the core. In an illustrative embodiment, the laser gain medium is an optical fiber. The core and claddings for a waveguide adapted to control modes propagating in the fast-axis direction. When the laser gain medium is employed as a laser oscillator, a high reflectivity mirror and an outcoupler are positioned at opposite ends of the core to form a laser resonator adapted to control modes in the slow-axis direction. | 2012-03-29 |
20120076160 | CONTINUOUS WAVELENGTH TUNABLE LASER SOURCE WITH OPTIMUM ORIENTATION OF GRATING AND GAIN MEDIUM - An external cavity laser assembly ( | 2012-03-29 |
20120076161 | LONG DISTANCE TRANSMISSION USING MULTI-MODE VCSEL UNDER INJECTION LOCKING - Adjustable chirp is achieved in injection-locked, 10-Gb/s directly modulated, multimode 1.55-μm VCSELs for the first time, leading to 90× increase in standard single-mode fiber transmission distance to 90 km. | 2012-03-29 |
20120076162 | DEVICE FOR TRANSFORMING ELECTROMAGNETIC IR ENERGY FROM SPATIALLY INCOHERENT, LOW-POWER DENSITY, BROAD-BAND RADIATION IN SPATIALLY COHERENT, HIGH-POWER DENSITY, QUASI-MONOCHROMATIC RADIATION - A device to be positioned between a heat source and a heat sink may transform infrared electromagnetic (IR-EM) energy exchanged therebetween from a first form to a second form. The device may include a pair of layers facing each other and having dielectric material with molecular excitability characteristics to produce the second form of IR-EM energy. The pair of layers may define a gap therebetween. The device may include a conversion circuit configured to convert the second form of IR-EM energy into electrical energy. | 2012-03-29 |
20120076163 | SURFACE EMITTING LASER WITH CURRENT CONSTRICTION LAYER AND MULTIPLE ACTIVE REGIONS - A surface emitting laser is provided which can control a beam shape and can provide higher efficiency and higher power. The surface emitting laser includes a gain region that is provided between a first semiconductor multilayer film reflection mirror and a second semiconductor multilayer film reflection mirror, which are arranged so as to oppose to each other, and that has a first active layer and a second active layer. The surface emitting laser has a current constriction layer for constricting an electric current which is injected into the first active layer and the second active layer. The first active layer and the second active layer have different active layer structures from each other. | 2012-03-29 |
20120076164 | MICROWAVE CIRCUIT - A microwave circuit includes at least one inductive portion and at least one capacitive portion and having a resonance frequency, the microwave circuit including a material which acts as a dielectric for the capacitive portion, characterized in that the material acting as a dielectric includes an active region that is an electrically pumped semiconductor heterostructure having at least two energy levels whose energy separation is close to the resonance frequency of the microwave circuit. | 2012-03-29 |
20120076165 | ASYMMETRICALLY CLADDED LASER DIODE - A light emitting active region between a first cladding layer and a second cladding layer, wherein the first cladding layer has a lower refractive index than a refractive index of the second cladding layer, and the first cladding layer and the second cladding layer are III-nitride based. | 2012-03-29 |
20120076166 | SINGLE PHOTON SOURCE - An embodiment of the invention relates to a single-photon source for emitting single photons, comprising a cavity having a first mirror and a second mirror and exhibiting a longitudinal resonance frequency between the first and second mirror; at least one quantum dot arranged inside said cavity, said quantum dot being strain-dependent and configured to generate radiation at a strain-dependent radiation frequency; a device capable of exciting the quantum dot to generate radiation; a piezoelectric crystal being arranged outside the cavity and mechanically coupled to the second mirror's outer surface, said piezoelectric crystal configured to receive a control voltage and capable of applying either a laterally tensile and vertically compressive strain to both the cavity and the quantum dot, or a laterally compressive and vertically tensile strain to both the cavity and the quantum dot, depending on the control voltage's polarity; wherein, in response to said strain, the resonance frequency and the radiation frequency shift in opposite directions. | 2012-03-29 |
20120076167 | SIDE-EMITTING LED LIGHT SOURCE FOR BACKLIGHTING APPLICATIONS - Disclosed is a side-emitting light device comprising two sub-assemblies which are optically bonded together. Each sub-assembly comprises a substrate, at least one light source disposed on the substrate, and a luminescent plate optically bonded with the at least one light source. The light source emits light of a wavelength capable of exciting luminescence light from the luminescent plate. The two sub-assemblies are arranged having the free surface of the luminescent plates facing each other. The side-emitting light device is for instance applicable for light sources comprising naked dies arranged with Thin Film Flip Chip (TFFC) technique or laser diodes. | 2012-03-29 |
20120076168 | SEMICONDUCTOR LASER DEVICE - A semiconductor laser according to the present invention comprises a λ/2 dielectric film (λ: in-medium wavelength of a dielectric film, for example, SiO | 2012-03-29 |
20120076169 | DETACHABLE PROBE COVER FOR EAR THERMOMETER AND MANUFACTURING METHOD THEREOF - This present invention discloses a detachable probe cover for an ear thermometer and a manufacturing method thereof. The detachable probe cover for the ear thermometer is for being mounted onto a measuring probe of the ear thermometer, wherein a combining mechanism is provided at a bottom of the measuring probe and the detachable probe cover comprises a main body of a hollow structure and a base, in which the main body has an open end and a closed end opposite to the open end, and the hollow structure has a diameter gradually reducing from the open end toward the closed end. | 2012-03-29 |
20120076170 | MULTIPOSITION TEMPERATURE MEASURING CABLE - Disclosed herein is a multiposition temperature cable, including: a measuring unit that includes a plurality of connectors, each being composed of a plus (+) terminal and a minus (−) terminal, in which each of the connectors measures a thermoelectromotive force; and a plurality of wire couples (thermocouples) that are connected to the plurality of connectors, wherein each of the wire couples includes a plus (+) junction wire, one end of which is connected to the plus (+) terminal, and a minus (−) junction wire, one end of which is connected to the minus (−) terminal, and the other end of the plus (+) junction wire and the other end of the minus (−) junction wire are connected to each other to form a hot junction with respect to each connector to form a closed circuit. The multiposition temperature cable can simultaneously measure temperatures at several positions in real time. | 2012-03-29 |
20120076171 | SYSTEM AND APPARATUS FOR DETERMINING AMBIENT TEMPERATURES FOR A FLUID ANALYTE SYSTEM - A system and method for rapidly determining ambient temperature in a fluid-analyte meter. The meter includes a housing defining an interior space and an area for receiving a fluid sample. A processor and a first temperature sensor are disposed within the interior space of said the housing. A second temperature sensor is disposed on the housing. One or more processors are configured to determine a first temperature value from temperature data received from the first temperature sensor. The processor(s) are also configured to apply a variable current to a temperature-adjustment source such that the second temperature sensor is adjusted to a predetermined steady-state temperature value different from the first temperature value. The processor(s) are further configured to determine an ambient temperature of an exterior space of the housing based on the applied variable current, pre-determined steady-state temperature, and received first temperature values. | 2012-03-29 |
20120076172 | MICRO-ELECTRO-MECHANICAL-SYSTEM TEMPERATURE SENSOR - The present invention provides a micro-electro-mechanical-system (MEMS) temperature sensor that employs a suspended spiral comprising a material with a positive coefficient of thermal expansion. The thermal expansion of the suspended spiral is guided to by a set of guideposts to provide a linear movement of the free end of the suspended spiral, which is converted to an electrical signal by a set of conductive rotor azimuthal fins that are interdigitated with a set of conductive stator azimuthal fins by measuring the amount of capacitive coupling therebetween. Real time temperature may thus be measured through the in-situ measurement of the capacitive coupling. Optionally, the MEMS temperature sensor may have a ratchet and a pawl to enable ex-situ measurement. | 2012-03-29 |
20120076173 | Method and Device for Implementation of Adaptive Frequency Hopping by Power Spectral Density - A wireless communication device is disclosed. The wireless communication device includes a frequency hopping communication circuit, a power spectral density circuit and a control circuit. The frequency hopping communication circuit includes a channel map. The frequency hopping communication circuit selects one of channel in a channel map to connect to another frequency hopping communication circuit according to the channel map. The power spectral density circuit for generating a power spectral density signal by measuring spectrums on all channels connected to the frequency hopping communication circuit. The control circuit receives the power spectral density and output statistical distribution data to the frequency hopping communication circuit. The frequency hopping communication circuit updates the channel map according to the statistical distribution data. | 2012-03-29 |
20120076174 | FAST FREQUENCY-HOPPING TRANSCEIVER AND METHOD - A fast frequency-hopping transceiver comprises a RF-unit arranged on a first chip, a base-band unit on a second chip, a bidirectional operable data and control interface arranged between said first and said second chip having at least one data line for data communication, at least one control line for controlling the data communication and at least one clock line for providing a clock signal, memory means implemented within said RF-unit containing all the required chip settings which are specific to a certain frequency of received and/or transmitted data being part of the intended hopping sequence. The transceiver also includes control means for programming said memory means during an initialization phase during a set-up of a communication link of said data communication. | 2012-03-29 |
20120076175 | METHOD AND APPARATUS FOR EFFICIENT GOLD CODE GENERATION AND MANAGEMENT IN WCDMA SYSTEMS - A method and an apparatus for efficient Gold code generation and management in WCDMA systems are presented. Aspects of the method may include simultaneously generating, based on the codeword sequence, a plurality of scrambling code segments associated with a scrambling code. A plurality of scrambling code segments, where each is associated with a corresponding one of a plurality of scrambling codes, may also be simultaneously generated. The plurality of scrambling codes may form a scrambling code group. Based on the codeword sequence, a plurality of time shifted versions of at least one scrambling code segment associated with a scrambling code may also be simultaneously generated. | 2012-03-29 |
20120076176 | ELECTRONIC DEVICE AND METHOD FOR SPREAD SPECTRUM CLOCK (SSC) MODULATION - The invention relates to an electronic device that includes a plurality of buffers and a phase locked loop. For each buffer a fractional divider is provided which is coupled to receive the output from the phase locked loop and configured to feed a divided output signal to a respective buffer. A spread spectrum clock control logic stage in the spread spectrum clock (SSC) is provided which is configured to individually adjust a value of the division of each fractional divider in order to individually and independently modulate the output signal of each fractional divider according to a spread spectrum modulation scheme. | 2012-03-29 |
20120076177 | SYSTEM AND/OR METHOD FOR DETECTING MULTI-TONE JAMMING - The subject matter disclosed herein relates to a system and method for processing a signal received from a satellite positioning system (SPS) in the presence of a multi-tone jammer. In one particular implementation, processing of a signal may be altered in response to detection of one or more conditions. | 2012-03-29 |
20120076178 | Portable Wireless Through-The-Earth Communication System - A portable wireless through-the-earth bi-directional communication system for sending and receiving text data using ultra-low-frequency electric current and the earth as the conductive media. A surface controller which executes application software which controls the communication functions of the system. A surface receiver and surface transmitter are connected to sets of electrodes which provide the electric current, and are in communication with the surface controller. Text data are encoded into data packets, modulated onto ultra-low-frequency electric carrier waves, and transmitted through the earth by the surface electrodes to a subsurface transceiver. The subsurface transceiver demodulates, converts and displays incoming signals into text messages. The subsurface transceiver has a user interface to allow subsurface users to submit text data to the surface receiver. The transceiver converts the text data into analog data packets, modulates the packets onto ultra-low-frequency carrier waves, and transmits the signal to the surface receiver. | 2012-03-29 |
20120076179 | TECHNIQUES FOR MULTI-USER MIMO SOUNDING IN WIRELESS NETWORKS - An embodiment of the present invention provides an apparatus, comprising a transceiver operable as an access point and capable of communicating in a wireless network, the AP adapted to perform a down link multi user-multiple input multiple output (DL MU-MIMO) transmission and further adapted to transmit a null data packet (NDP) to sound channels between intended recipient wireless stations (STAs), and wherein following a DL MU-MIMO transmission of the NDP, the AP polls each of the STAs in turn for channel state information. | 2012-03-29 |
20120076180 | PHASE-LOCKED LOOP AND RADIO COMMUNICATION DEVICE - According to one embodiment, a phase-locked loop includes: a voltage controlled oscillator that generates an oscillation signal including an oscillation frequency corresponding to a control signal; a divider that divides the oscillation signal to generate a frequency-divided signal; a phase frequency detector that compares the phases of the frequency-divided signal and a reference signal to generate a comparison signal; a charge pump that outputs current corresponding to the comparison signal; a filter that filters the current to generate the control signal; a detection circuit that generates a detection signal when the difference between a value of a constant multiple of the frequency of the frequency-divided signal and a value of a constant multiple of the frequency of the reference signal becomes local minimum; and a phase adjustment circuit that synchronizes the phases of the frequency-divided signal and the reference signal when the detection signal is generated. | 2012-03-29 |
20120076181 | ADAPTING TRANSFER FUNCTIONS OF CONTINUOUS-TIME EQUALIZERS - Described embodiments provide a method of adjusting configurable parameters of at least one linear equalizer in a communication system. A transmitting device applies an input signal to a receiver. The at least one linear equalizer equalizes the input signal. A sampler generates one or more sampled values of the input signal. A data detector digitizes the sampled values of the input signal. At least one error detection module generates an error signal based on one or more of a plurality of sampled values of the input signal and a target value. An adaptation module determines a gradient signal based on a comparison of one or more of the plurality of sampled values of the input signal and one or more of the plurality of values of the error signal. The adaptation module adjusts a transfer function of the at least one linear equalizer based on the determined gradient signal. | 2012-03-29 |
20120076182 | METHOD AND APPARATUS FOR MEASURING AND REPORTING A RANK AND A PRECODING MATRIX FOR MULTIPLE-INPUT MULTIPLE-OUTPUT COMMUNICATION - A method and apparatus for measuring and reporting a rank and/or a precoding matrix for multiple-input multiple-output (MIMO) communication are disclosed. A metric indicating a channel condition is measured and a rank is selected based on the metric. The metric may be a signal-to-interference and noise ratio (SINR), throughput, a block error rate (BLER), system capacity, a sum rate, or the like. An SINR for each radio block group (RBG) for each rank is calculated. A data rate is calculated for each RBG based on the SINR for each rank. An overall rate for all RBGs is calculated for each rank. At least one rank is selected based on the overall rate. At least one precoding matrix may be selected jointly with or separately from the at least one rank. | 2012-03-29 |
20120076183 | SYSTEMS AND METHOD FOR ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING - Systems and methods for orthogonal frequency division multiplexing are provided. In one embodiment, a multi-carrier modem comprises: a transmitter configured to modulate symbols onto at least one of a plurality of the spectrally overlapping carrier signals; a processor coupled to the transmitter, wherein the processor outputs data for transmission by the transmitter, wherein the processor applies an inverse Fourier transform to the data transmitted by the transmitter; the processor modulating a first carrier of the plurality of spectrally overlapping carrier signals based on a first modulation scheme while modulating a second carrier of the plurality of spectrally overlapping carrier signals based on a second modulation scheme. | 2012-03-29 |
20120076184 | MULTIBAND ANTENNA FOR A MOBILE DEVICE - A multiband antenna for a mobile device is disclosed. The mobile device includes a multiband antenna configured to communicate with a base station. The multiband antenna includes a ground plane, a ground plane extension, and a plurality of antenna arms. The ground plane, the ground plane extension, and the plurality of antenna arms are configured to communicate signals in multiple frequency bands, where the ground plane and the ground plane extension have a length proportional to approximately a quarter wavelength of a frequency in the multiple frequency bands. The mobile device further includes a modulator and demodulator configured to modulate signal for transmission and demodulate signal received from the base station, and a controller configured to control communication of signals using the multiband antenna and the modem. | 2012-03-29 |
20120076185 | APPARATUS AND METHOD FOR COMPENSATING TRANSMISSION POWER IN WIRELESS COMMUNICATION TERMINAL - Provided are an apparatus and method for compensating transmission power of a signal transmitted through a slave modem (e.g., a WiMAX modem) in a wireless communication terminal including a dual modem. A slave modem receives a digital code value corresponding to a periodically measured battery voltage value from a host modem through a General Purpose Input Output (GPIO) port. The slave modem determines a transmission power compensation value corresponding to the received digital code value from a predefined table. | 2012-03-29 |
20120076186 | COMMUNICATION SYSTEM AND COMMUNICATION APPARATUS - Disclosed herein is a communication system including: at least one power line communication apparatus connected via a general power line for supplying a commercial alternate current power; a communication terminal having a modem for power line communication, and a plurality of first coils having different directivities; and a coupling apparatus, connected to a power line, having a filter for attenuating an alternate current component of the power line, and a second coil arranged after the filter; wherein the communication terminal executes mutual communication with any of the power line communication apparatus connected via the general power line through proximity communication based on an electromagnetic coupling action that is generated between the plurality of first coils and the second coil when the communication terminal is brought to the proximity of a coupling surface of the coupling apparatus. | 2012-03-29 |
20120076187 | MULTI-DOMAIN TEST AND MEASUREMENT INSTRUMENT - A test and measurement instrument including a time domain channel configured to process a first input signal for analysis in a time domain; a frequency domain channel configured to process a second input signal for analysis in a frequency domain; and an acquisition system coupled to the time domain channel and the frequency domain channel. The acquisition system is configured to acquire data from the time domain channel and the frequency domain channel. Time domain and frequency domain data can be time aligned. | 2012-03-29 |
20120076188 | Close-loop power transmission calibration - A close-loop power calibration algorithm is performed on a wireless communication device to correct power amplifier pre-distortion or PADR correction curves. In addition to peak to average power ratio or PAPR detection techniques, an algorithm or process is implemented that uses a transmitted reference packet, such as an orthogonal frequency domain multiplexing (OFDM) packet. The reference packet is used to learn the linear response of a detector that measures output of the power amplifier. The transmitted packet can include a linear response. The included linear response can determined by subtracting a normal packet from the reference packet. | 2012-03-29 |
20120076189 | ESTIMATION OF SIGNAL AND INTERFERENCE POWER - Wireless receiver and method of operating a wireless receiver in a wireless communication network for: receiving a signal, the received signal comprising data containing at least one symbol from a symbol alphabet, the symbol alphabet consisting of complex values that define a direction in the complex plane, the received signal further comprising interference; measuring the variance of a first component of the received signal that is perpendicular to the defined direction in the complex plane; estimating the interference power of the received signal using the measured variance of the first component of the received signal; estimating a total power of the received signal; estimating the power of the at least one symbol of the received signal by subtracting the estimated interference power from the estimated total power of the received signal; and based on the estimated interference power and the estimated power of the at least one symbol of the received signal, performing at least one of the steps of: processing the received signal, and generating control information related to the transmission of a further signal from the wireless receiver. | 2012-03-29 |
20120076190 | METHOD AND APPARATUS FOR DIGITALLY PROCESSING OFDM SIGNALS FOR RADAR APPLICATIONS - The present invention relates to a method and also a device for digitally processing OFDM signals which are emitted by a transmission apparatus with modulation symbols as information carriers, reflected at one or a plurality of objects at least to some extent and received by a receiving apparatus. The modulation symbols are extracted without prior channel equalisation from the OFDM signals received and the extracted modulation symbols are normalised by a complex division to the respectively transmitted modulation symbol. The radar analysis for determining the distance and/or determining the speed of the objects then takes place on the basis of the normalised modulation symbols. With the method and the device, on the one hand, both distance and speed of the objects can be determined independently of one another. On the other hand, the method works very reliably, as it is not influenced by the transmitted information. | 2012-03-29 |
20120076191 | Apparatus and method to process signals from one or more transmission sources - A receiver and a method to process signals from one or more transmission sources. The receives includes a front-end having: an input coupling path to route an analog input signal received from one or more transmission sources; an equalizer to generate an equalized signal from the analog input signal; and an ADC to generate a digitized signal from the equalized signal. The method includes routing the analog input signal through an input coupling path; equalizing the analog input signal to generate an equalized signal therefrom; and digitizing the equalized signal to generate a digitized signal therefrom. | 2012-03-29 |
20120076192 | EFFICIENT HIGH PERFORMANCE DEMODULATION OF LOW BT VALUE GAUSSIAN MINIMUM SHIFT KEYING INCORPORATING TURBO EQUALIZATION | 2012-03-29 |
20120076193 | System and Method for Linear Distortion Estimation By Way of Equalizer Coefficients - Provided is a method and system for estimating distortion in a communications channel including an adaptive equalizer. The method includes determining one or more adaptive filter coefficients associated with a signal passed through the equalizer. The method also includes estimating un-equalized channel distortion based upon the determined adaptive filter coefficients. | 2012-03-29 |
20120076194 | RECEIVER EMPLOYING NON-PILOT REFERENCE CHANNELS FOR EQUALIZING A RECEIVED SIGNAL - In one embodiment, a receiver has a reference generator and a main equalizer. The reference generator equalizes a received signal using one or more pilot reference signals. Then, the reference generator decodes one or more predetermined data channels of the equalized signal, makes hard decisions on the data of each decoded channel, and regenerates the original coding sequence of each decoded channel. The main equalizer uses each re-encoded channel as an additional reference signal along with one or more pilot signals to equalize a time-delayed version of the received signal. In alternative embodiments, the receiver might also have a step-size generator which selects optimum step sizes from a look-up table based on the number of re-encoded channels and the power of those channels. The step size is then used by the main equalizer along with the re-encoded channels to equalize the time-delayed received signal. | 2012-03-29 |
20120076195 | SCALED SIGNAL PROCESSING ELEMENTS FOR REDUCED FILTER TAP NOISE - An adaptive transversal filter having tap weights Wj which are products of corresponding tap coefficients C | 2012-03-29 |
20120076196 | DECISION DIRECTED TIMING RECOVERY USING MULTI-PHASE DETECTION - A set of one or more samples is received. Using a first signal processor associated with a first phase offset, a first decision and a first error value are generated using the set of samples. Using a second signal processor associated with a second phase offset, a second decision and a second error value are generated using the set of samples. This includes interpolating the set of samples to obtain a set of interpolated samples at the second phase offset and generating the second decision and the second error value using the set of interpolated samples at the second phase offset. A selection associated with the first decision and the second decision is made based at least in part on the first error value and the second error value. | 2012-03-29 |
20120076197 | System and Method for Transmitting Video and User Interface Elements - A method for offloading decoding of encoded video data from a computer system executing a video player application playing the encoded video data to a remote display terminal still enables the video player application to overlay transparent or semi-transparent graphical elements, such elements, such as user interface controls, onto the video, despite not having access to decoded video data. A video decoding function call from the video player application is intercepted and replacement video data is provided to the video player application rather than a decoded version of the encoded video data. The video player application is thereby able to overlay graphical elements onto the replacement video data to create composite video from which the graphical elements are then able to be subsequently extracted and transmitted with the encoded video data to remote display terminal, which decodes the video data and overlays the graphical elements for display. | 2012-03-29 |
20120076198 | DTV TRANSMITTER AND METHOD OF CODING DATA IN DTV TRANSMITTER - A digital television (DTV) transmitter includes a first randomizer randomizing enhanced data; a Reed-Solomon (RS) frame encoder generating an RS frame; a block processor encoding data in the RS frame, outputting data symbols, interleaving the data symbols, and converting the interleaved data symbols into data bytes; a group formatting unit mapping the data bytes into data groups; a deinterleaver deinterleaving data of the data groups; a packet formatter outputting enhanced data packets; a multiplexer multiplexing the enhanced data packets with main data packets; a second randomizer randomizing the multiplexed main data packets and MPEG header data in the multiplexed enhanced data packets; a Reed-Solomon (RS) encoder RS encoding the multiplexed enhanced data packets; an interleaver interleaving data of the RS-encoded data packets; and a trellis encoding unit trellis encoding the interleaved data. | 2012-03-29 |
20120076199 | Adaptive data transmission rate control for a wireless display device - A method, a computer readable medium and an apparatus to adaptively control a data transmission rate of a wireless display device. The method includes determining a current data transmission rate capacity of a wireless channel; and controlling a data transmission rate of a wireless transmission device based on the current data transmission rate capacity. | 2012-03-29 |
20120076200 | Apparatus for Encoding and Decoding Header Data in Picture Signal Transmission - A picture decoding method and apparatus for decoding a bit stream, the bit stream being compatible with MPEG 1 moving picture video standard. The method includes receiving, via an input terminal, from the bit stream that includes extension data added in a header of a picture layer of the bit stream when the header includes control data newly added in MPEG 2 standard format, a picture coding type and the extension data of an anterior header of the picture layer. The bit stream in the picture layer is decoded using the picture coding type and the extension data of an anterior header of the picture layer when an extension start code indicating the beginning of the extension data of the current header is not received from the bit stream. | 2012-03-29 |
20120076201 | LINK AWARE MOBILE DATA NETWORK - Methods, systems, and devices are described for communicating data from multiple data terminals to an aggregator terminal over a communication link having changing link conditions. In some embodiments, source data is received at multiple data terminals, each in communication with an aggregator terminal over a communication link. For example, during a live newscast, one mobile camera may receive live video of an event from a first position while another mobile camera receives live video of the event from a second position. For various reasons (e.g., as the cameras move) each communication link may experience independently changing link conditions. Each data terminal encodes the source data (or store source data for later encoding) as a function of its respective link conditions, and transmits encoded source data over its respective communication link to the aggregator terminal. | 2012-03-29 |
20120076202 | SYSTEM AND METHOD FOR FRAME LEVEL BIT RATE CONTROL WITHOUT PRE-ANALYSIS - Methods and systems to determine a quantization parameter (QP) that may then be used in a bit rate control process during video compression and decompression. The QP for a frame may be derived by determining an initial QP, adapting this value, and applying a final control calculation. The QP for a frame may be calculated from a variety of variables, that may include the frame type (intracoded (I), predictive (P), or bipredictive (B)), the fullness of a hypothetical reference decoder (HRD) buffer, the instant and target bit rates, a total encode size, a total target size, the number of P frames between I frames in a group of pictures (GOP), the number of B frames between I frames in the GOP, and the size of previous frames. | 2012-03-29 |
20120076203 | VIDEO ENCODING DEVICE, VIDEO DECODING DEVICE, VIDEO ENCODING METHOD, AND VIDEO DECODING METHOD - A compressing unit | 2012-03-29 |
20120076204 | METHOD AND APPARATUS FOR SCALABLE MULTIMEDIA BROADCAST USING A MULTI-CARRIER COMMUNICATION SYSTEM - A wireless distribution system is provided where multiple carrier frequencies/channels are used to facilitate transmission of scalable multimedia content. Some carrier frequencies are assigned to carry base layer data for one or more program/content channels and some other carrier frequencies are assigned to carry data for one or more enhancement layers associated with the base layer data of one or more program/content channels. The enhancement layer carrier frequency may be shared among program/content channels transmitted over multiple different base layer carrier frequencies. Different numbers of enhancement layers and their bandwidth may correspond to different refinements of the multimedia content. | 2012-03-29 |
20120076205 | Methods and Systems for Capturing Wide Color-Gamut Video - Aspects of the present invention relate to systems and methods for capturing, encoding and decoding wide color-gamut video. According to a first aspect of the present invention, a plurality of processed image frames are associated with a legacy bit-stream, and a plurality of unprocessed image frames are associated with an enhancement bit-stream. | 2012-03-29 |
20120076206 | Compressed Domain Video Watermarking - In accordance with an embodiment, a method of watermarking encoded video frames includes electronically receiving a bitstream comprising a plurality of encoded video frames that are divided into a plurality of macro-blocks, determining macro-block dependencies based on prediction information in the received bitstream, determining a set of macro-blocks having a minimal number of macro-block dependencies, and embedding a watermark in a plurality of macro-blocks selected from the set of macro-blocks having the minimal number of macro-block dependencies. | 2012-03-29 |
20120076207 | MULTIPLE-CANDIDATE MOTION ESTIMATION WITH ADVANCED SPATIAL FILTERING OF DIFFERENTIAL MOTION VECTORS - A system and method of performing motion estimation in a video encoder is enclosed. The system and method include calculating one or more candidate motion vectors for each macroblock of a video image to form a list of candidate motion vectors, calculating a second one or more candidate motion vectors using a sub-region of at least one macroblock of the video image to include in the list of candidate motion vectors, and comparing the calculated candidate motion vectors of a first macroblock with the calculated candidate motion vectors of at least one sub-region of the first macroblock to provide the estimated contribution to the candidate motion vector of the macroblock. The calculating a second one or more candidate motion vectors using a sub-region of at least one macroblock may include using an approximation different from the calculating one or more candidate motion vectors for each macroblock. | 2012-03-29 |
20120076208 | MEMORY REDUCED H264/MPEG-4 AVC CODEC - A method for reducing memory utilization in a digital video codec. The method generally includes the steps of (A) generating a second reference picture by downsampling a first reference picture using a pattern, wherein the pattern (i) comprises a two-dimensional grid and (ii) is unachievable by performing a vertical downsampling and separately performing a horizontal downsampling, (B) generating a third reference picture by upsampling the second reference picture and (C) processing an image in a video signal using the third reference picture. | 2012-03-29 |
20120076209 | TRANSCODING DEVICE, TRANSCODING METHOD AND PROGRAM THEREOF - A device, a method and a program to simplify transcoding of TTS (timestamped transport streams). When transcoding video data in the input TTS, the video processor unit reattaches time stamps in sequence within the applicable frame period of each video frame to each video packet within the applicable video frame after recompression. When transcoding audio data in the input TTS, the audio processor unit reattaches time stamps in sequence within the applicable video frame period of each video frame to each audio packet in the applicable video frame after recompression. | 2012-03-29 |
20120076210 | Systems and Methods Utilizing Efficient Video Compression Techniques for Browsing of Static Image Data - Embodiments include systems and methods that use video compression techniques when browsing web pages referencing static image data or video content. In non-limiting examples, this can include using modern video compression techniques when browsing web pages referencing compressed static image data to obtain increased efficiency in transmission and/or rendering of the static image data on a browser at a client device. In an embodiment, a system includes a browser that browses a received web page having a content identifier and an associated video compression data signature. The browser includes a decoder that decodes compressed video content associated with the content identifier in accordance with a type of video compression identified by the video compression data signature to obtain static image data. | 2012-03-29 |
20120076211 | Systems and Methods for Facilitating Power Line Communications - Systems and methods for facilitating power line communications are described. In some embodiments, a PLC device may detect the availability of a first frequency band as well the availability of a combination of a second frequency band with a third frequency band. The PLC device may then communicate with another PLC device using a frequency band selected as (a) at least a portion of a combination of the first, second, and third frequency bands, (b) at least a portion of the first frequency band, or (c) at least a portion of the combination of the second with third frequency bands. The PLC device may further transmit a message to a higher-level PLC apparatus (e.g., a domain master) over the power line using a device-based access mode, receive an instruction to switch to a domain-based access mode, and thereafter communicate with another PLC device using the domain-based access mode. | 2012-03-29 |
20120076212 | HARMONIC TRANSMISSION OF DATA - Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for communicating using harmonic tones. In one aspect, a method includes receiving harmonic tones that represent data being reported by a node that generated the harmonic tones; selecting data that are represented by each of the harmonic tones; and providing the data that are represented by the harmonic tones. | 2012-03-29 |
20120076213 | INTERFERENCE CANCELATION USING EDGE SIGNALS FOR SYNCHRONIZATION SIGNAL DETECTION - In 3GPP Release (Rel) 8, a primary synchronization signal (PSS) and a secondary synchronization signal (SSS) may be transmitted in six resource blocks, occupying, for example, the center 62 tones (i.e., subcarriers) of an LTE-A system, wherein the center tone may be skipped. In synchronous networks, cells may transmit their respective PSS and SSS on the same frequency at the same time, wherein strong cells may overshadow the weak ones. However, strong cells may not be the serving cell for a user equipment (UE), particularly in a heterogeneous network. Traditionally, interference cancelation, an enhanced receiver technique, has been used, wherein the UE may first find the strong cells and cancel them out to find the serving cell. However, due to propagation delay and synchronization uncertainty, a timing offset may exist among cells, even in synchronous networks. Therefore, systems and methods are disclosed, providing for improved handling of the timing offset among different cells by applying a time domain cancelation. | 2012-03-29 |
20120076214 | Multi-symbol channel estimation method for estimating channel response in a multi-carrier modulation system - A method of multi-symbol channel estimation for estimating channel response to a plurality of transmission symbols within an observation window transmitted through a time-varying channel in a multi-carrier modulation system is provided. The method is to be implemented using a channel estimation device, and includes the steps of: obtaining a window pilot receive vector according to a part of elements of each of receive symbols corresponding to pilots in a corresponding one of the transmission symbols; computing a window pilot channel trans form matrix based upon the pilots in the transmission symbols; computing an estimated value of a polynomial coefficient vector based upon the window pilot receive vector and the window pilot channel transform matrix; and for each of the transmission symbols, computing a plurality of estimated values of channel response associated with possible transmission paths in the time-varying channel according to the estimated value of the polynomial coefficient vector. | 2012-03-29 |
20120076215 | METHOD AND APPARATUS FOR TRANSMITTING ADDITIONAL DATA IN DIGITAL TERRESTRIAL BROADCASTING SYSTEM - A method and an apparatus for transmitting additional data in a digital terrestrial broadcasting system are provided. The apparatus includes: a main signal generating unit channel-coding main data and converting the main data into a main signal; an additional signal generating unit channel-coding additional data and converting the additional data into an additional signal; a mixed signal generating unit generating a mixed signal by coupling the main signal and the additional signal to each other; and a mixed signal transmitting unit modulating the mixed signal and transmitting the modulated mixed signal to a receiver through a transmission antenna, wherein the additional data is additional data requested by a specific user possessing the receiver and the specific user provides information on an additional data transmitter. | 2012-03-29 |
20120076216 | MIMO Communication Method And Devices - A stream of information is communicated by means of transmission distributed over a plurality of transmission antennas and reception distributed over a plurality of reception antennas. In the method the stream is encoded according to an error correcting code, into a series of multi-bit symbols. A sequence of the multi-bit symbols is interleaved, by which symbols are assigned to time slots, so that the multiple bits of the symbols remain together in the same time slot. The interleaved multi-bit symbols are transmitted, with each symbol distributed over the transmission antennas in a respective time slot. Signals received at the reception antennas in each respective time slot are received and demodulated, to produce demodulation results each for a respective time slot. A time-slot sequence of the demodulation results is deinterleaved. Decoded symbol values are selected under a constraint that a series of the selected symbols belongs to the error correcting code. The selection is performed based on information about the probability of the symbol values, obtained as a function of the demodulation results. A function is used that accounts for correlation effects between the signals from combinations of the reception antennas in a time slot. | 2012-03-29 |
20120076217 | Using OFDM to correct distortions in Ultra-Wide-Band radios operating over flat millimeter-wave channels - A Point-to-Point communication system includes (i) a millimeter-wave channel having a substantially flat channel transfer function between a first frequency of millimeter-waves and a second frequency of millimeter-waves, the two frequencies are separated by at least 500 MHz, (ii) a transmission system configured to transmit an Orthogonal Frequency Division Multiplexing (OFDM) signal having a bandwidth of at least 100 MHz over the millimeter-wave channel as a millimeter-wave signal located between the first frequency and the second frequency, and (iii) a reception system comprising a radio receiver having a substantially non-flat reception transfer function over the bandwidth of the OFDM signal, configured to receive the millimeter-wave signal via the millimeter-wave channel and down-convert the millimeter-wave signal into a reconstruction of the OFDM signal having a bandwidth of at least 100 MHz, and an OFDM de-modulator configured to compensate for the substantially non-flat reception transfer function, by de-modulating the reconstruction of the OFDM signal. | 2012-03-29 |
20120076218 | COMMUNICATION DEVICE - A first communication device includes: a control unit functioning as: a first selection unit which, for a first case where first type data is to be transmitted from the first communication device to a second communication device, selects one or more band guarantee values from a plurality of band guarantee values determined on a basis of transmission capability with which the first communication device transmits the first type data; a request unit which provides a first request command indicating the one or more band guarantee values to the second communication device; a communication unit that acquires a first response command indicating one band guarantee value selected from the one or more band guarantee values by the second communication device; and a first transmission execution unit which transmits the first type data to the second communication device in accordance with the one band guarantee value indicated by the first response command. | 2012-03-29 |
20120076219 | STREAM PARSING IN A COMMUNICATION SYSTEM - In a method for parsing data in a data unit into a number of spatial streams, a modulation and coding scheme (MCS) is selected from a plurality of MCSs. Information bits are encoded using one or more encoders to generate coded bits, wherein the number of encoders used depends on the selected MCS. The coded bits into a number of spatial streams according to a first set of parsing rules if the coded bits satisfy a parsing constraint. The coded bits are parsed into the number of spatial streams according to a second set of parsing rules if the coded bits do not satisfy the parsing constraint. | 2012-03-29 |
20120076220 | TRANSMISSION APPARATUS AND A RECEPTION APPARATUS IN A MULTICARRIER TRANSMISSION SYSTEM AND A TRANSMISSION METHOD AND A RECEPTION METHOD USING THE MULTICARRIER TRANSMISSION SYSTEM - Inter-carrier interference caused by frequency fluctuations, amplitude fluctuations, phase fluctuations, or the like is reduced without reducing a transmission efficiency. A receiving end has a canceling filter section that alleviates the inter-carrier interference caused by the frequency fluctuations, the amplitude fluctuations, the phase fluctuations, or the like through filtering processing. A transmitting end has a precoding section that facilitates determination of demodulation data in a vector demodulation section on the receiving end through precoding processing. Or, the receiving end has a trellis decoding section that decodes the demodulation data through trellis decoding processing. | 2012-03-29 |
20120076221 | COMMUNICATION METHODS FOR CCFI/PCFICH IN A WIRELESS COMMUNICATION SYSTEM - A method of transmitting a control channel format indicator (CCFI), also known as PCFICH (Physical Control Format Indicator Channel), in case where the length of a coded CCFI is not an integer multiple of three, including mapping a plurality of two-bit CCFI into a codebook with each component codeword having three bits; generating a sequence of codewords selected from the codebook by repeating the selected component codeword for predetermined times; generating a codeword by concatenating the sequence of the selected component codewords with the original CCFI bits; and transmitting the codeword carrying information of CCFI. The method further includes a step of generating a permutation of each of the four codewords by assigning K repetitions of the three-bit component codeword to the number of K resource units respectively and mapping remaining K bits of each of the four codewords separately to the number of K resource units. | 2012-03-29 |
20120076222 | METHOD AND APPARATUS FOR USING CONTROL CHANNEL FORMAT INDICATOR (CCFI) CODEWORDS IN A WIRELESS COMMUNICATION SYSTEM - A method of transmitting a control channel format indicator (CCFI), also known as PCFICH (Physical Control Format Indicator Channel), in case where the length of a coded CCFI is not an integer multiple of three, including mapping a plurality of two-bit CCFI into a codebook with each component codeword having three bits; generating a sequence of codewords selected from the codebook by repeating the selected component codeword for predetermined times; generating a codeword by concatenating the sequence of the selected component codewords with the original CCFI bits; and transmitting the codeword carrying information of CCFI. The method further includes a step of generating a permutation of each of the four codewords by assigning K repetitions of the three-bit component codeword to the number of K resource units respectively and mapping remaining K bits of each of the four codewords separately to the number of K resource units. | 2012-03-29 |
20120076223 | Method and System for an Alternating Delta Quantizer for Limited Feedback MIMO Pre-Coders - Aspects of a method and system for an alternating delta quantizer for limited feedback MIMO pre-coders may comprise quantizing a change in channel state information in a MIMO pre-coding system onto at least a first and a second codebook, each of which comprises one or more unitary matrices, using a cost function; feeding back, in an alternating manner, an index to an element of at least the first codebook or the second codebook, associated with the quantizing, from a receiver to a transmitter in said MIMO pre-coding system, and generating the at least first and second codebook based on at least the channel state information. The channel state information may be a matrix V and the cost function may be defined by the following relationship: | 2012-03-29 |
20120076224 | Ultra-high-bandwidth low-power-consumption wireless communication systems - An ultra-high-bandwidth low-power-consumption wireless communication system includes (i) a Radio Frequency Integrated Circuit (RFIC) comprising a radio transmitter, transmitting millimeter-wave signals. The radio transmitter includes a Power Amplifier (PA) outputting the millimeter-wave signals at a low power level of between −10 dBm and 20 dBm, and by that allowing inclusion of the PA in the RFIC. The radio transmitter further includes a Voltage Controlled Oscillator (VCO) and a synthesizer driving a mixer up-converting signals into the millimeter-wave signals. The VCO and synthesizer have a combined phase noise between a first level and a second level, wherein the first level is high enough to allow inclusion of the VCO and synthesizer in the RFIC, and the second level is low enough to facilitate transmitting at 16-levels Quadrature-Amplitude-Modulation (16QAM). | 2012-03-29 |
20120076225 | METHOD, APPARATUS AND SYSTEM FOR TRANSMITTING INFORMATION BITS - A method, an apparatus and a system for transmitting information bits are provided. The method for transmitting information bits includes: dividing the information bits to be transmitted into at least two groups; encoding the information bits to be transmitted in each group; modulating the coded bits obtained by the encoding to obtain modulation symbols, in which each modulation symbol is obtained by the modulation of the coded bits in the same group; and mapping and transmitting the modulation symbols. In this way, the receiving end easily reduces the algorithm complexity, thereby ensuring the performance of the receiving end. | 2012-03-29 |
20120076226 | Digital Television Transmitter/Receiver and Method of Processing Data in Digital Television Transmitter/Receiver - A digital television (DTV) transmitter and a method of processing known data in the DTV transmitter are disclosed. The method of processing known data in a digital television (DTV) transmitter includes generating a known data sequence, trellis-encoding the known data sequence, the trellis-encoded known data sequence having upper, middle, and lower bits, wherein at least one of the upper, middle, and lower bits has an m-sequence property, and mapping the trellis-encoded known data sequence into one of 2-level, 4-level, and 8-level data sequences, wherein the mapped data sequence has substantially an m-sequence property, wherein a data sequence has an m-sequence property when a peak value among auto-correlation values of the data sequence having a length of N is 1 and all the off-peak auto-correlation values are −1/N. | 2012-03-29 |
20120076227 | RADIO BASE STATION APPARATUS AND METHOD FOR SELECTING MODULATION AND CODING SCHEME - Provided is a radio base station apparatus capable of selecting an optimal modulation and coding scheme for each transmission stream easily. The radio base station apparatus has a CQI information decoder ( | 2012-03-29 |
20120076228 | Adaptive Time Diversity and Spatial Diversity for OFDM - An adaptable orthogonal frequency-division multiplexing system (OFDM) that uses a multiple input multiple output (MIMO) to having OFDM signals transmitted either in accordance with time diversity to reducing signal fading or in accordance with spatial diversity to increase the data rate. Sub-carriers are classified for spatial diversity transmission or for time diversity transmission based on the result of a comparison between threshold values and at least one of three criteria. The criteria includes a calculation of a smallest eigen value of a frequency channel response matrix and a smallest element of a diagonal of the matrix and a ratio of the largest and smallest eigen values of the matrix. | 2012-03-29 |