08th week of 2012 patent applcation highlights part 26 |
Patent application number | Title | Published |
20120044931 | Via Site for Managing Network Bandwidth - A system for using one or more via sites to manage network bandwidth, according to one embodiment of the present invention comprises a first call manager at a source site receiving an offer message to connect a call. The offer message includes an endpoint media settings list. The first call manager determines a first filtered media preferences list based on a source media settings list and the endpoint media settings list. The first call manager and transmits an invite message to a second call manager at a first via site. The invite message includes the first filtered media preferences list. The first call manager receives from the second call manager a call settings list that includes a description of the call settings negotiated between the source site, the first via site and a destination site. | 2012-02-23 |
20120044932 | ROUTING A VOIP CALL WITH CONTEXTUAL INFORMATION - A method and system for routing a call connection signal and corresponding contextual information to an appropriate destination is provided. A call center and at least one user may exchange signals, and/or contextual information during a call set-up phase. Relevant contextual information and other detailed information may be identified and collected from their corresponding sources. Based on the relevant contextual information and other detailed information, one or more appropriate routed destinations may be determined. In addition, contextual information may be tailored for each of the determined routed destinations. The call connection signal and the tailored contextual information are routed to each routed destination. In this manner, necessary contextual information may be readily available for the routed destination at the time of the call connection and thus the routed destination can provide a faster service. | 2012-02-23 |
20120044933 | METHOD AND APPARATUS FOR ROUTING BETWEEN FIBRE CHANNEL FABRICS - An interfabric link between two separate Fibre Channel fabrics so that devices in one fabric can communicate with devices in another fabric without requiring the merger of the two fabrics. The interfabric switch performs a conversion or a translation of device addresses in each fabric so that they are accessible to the other fabric. In a first embodiment the external ports of the interfabric switch are configured as E_ports. A series of internal ports in each interfabric switch are joined together forming a series of virtual or logical switches. In a second embodiment the external ports are configured as NL_ports and the connections between the virtual switches are E_ports. The virtual switches in the interfabric switch match domains with their external counterparts so that the virtual switches effectively form their own fabric. | 2012-02-23 |
20120044934 | METHOD AND APPARATUS FOR ROUTING BETWEEN FIBRE CHANNEL FABRICS - An interfabric link between two separate Fibre Channel fabrics so that devices in one fabric can communicate with devices in another fabric without requiring the merger of the two fabrics. The interfabric switch performs a conversion or a translation of device addresses in each fabric so that they are accessible to the other fabric. In a first embodiment the external ports of the interfabric switch are configured as E_ports. A series of internal ports in each interfabric switch are joined together forming a series of virtual or logical switches. In a second embodiment the external ports are configured as NL_ports and the connections between the virtual switches are E_ports. The virtual switches in the interfabric switch match domains with their external counterparts so that the virtual switches effectively form their own fabric. | 2012-02-23 |
20120044935 | Relay control unit, relay control system, relay control method, and relay control program - Communication allowance determination means determines, using information of a packet received by a packet relay unit and based on a policy which is information associating a match condition with communicability information, whether to allow or not to allow communication to a destination unit for the packet that meets the match condition, the match condition being information identifying the packet, and the communicability information indicating whether to allow or not to allow the communication to the destination unit for the packet that meets the match condition. Rule setting means sets, at least in the packet relay unit receiving the packet, a rule of executing a process for suppressing forwarding of the packet to the destination unit, on condition that the communication allowance determination means determines not to allow the communication to the destination unit for the packet that meets the match condition. | 2012-02-23 |
20120044936 | Methods and Devices for Point to Multipoint Traffic Path Encoding - The present invention relates to network nodes and methods that use an encoding scheme for encoding a point-to-multipoint traffic path from one ingress node to a plurality of egress nodes in, for example, a Multi-Protocol Label Switching network. According to the encoding scheme a so-called common ERO is used. The common ERO specifies a list consisting of nodes that are common to several sub paths in order to provide a compression mechanism that reduces the size of path messages that are used for signaling the point-to-multipoint traffic path. | 2012-02-23 |
20120044937 | Method and Apparatus for Simulating IP Multinetting - IP Multinetting on a local area network is simulated by performing VLAN translation at a port connecting to the local area network. This allows IP addresses from multiple subnets to be associated with a single VLAN on the Local Area Network (LAN), while allowing the core switch to process the packets with a one-to-one correspondence between IP Subnet and VLAN. When a packet is received from the local area network at an IP multinetting port, the VLAN ID will be read to determine if the packet contains the IP Multinetting VLAN ID. The IP Subnet address will also be checked to see if the packet is associated with an IP Subnet that is part of the Multinetting. If so, the multinetting VLAN ID will be changed to an IP Subnet specific VLAN ID before the packet is processed by the core switch. | 2012-02-23 |
20120044938 | METHOD FOR HANDLING EMERGENCY SERVICE IN NETWORK COMMUNICATION - The present invention discloses a method for handling an emergency service in a network communication, including: sending, by an emergency service initiating side, an emergency service identifier together with an emergency service to a network side; and allocating, by the network side, resource to the emergency service with a priority higher than those of normal services. With the present invention, a corresponding emergency service may be identified effectively in a network provided with an independent bearer-control-layer entity, and a resource may be allocated to the emergency service in accordance with a special resource allocation policy. Therefore, it is possible to guarantee the connectivity and the resource for the emergency service as requested in the network, and hence to reduce an unexpected and unnecessary loss. | 2012-02-23 |
20120044939 | Method and Apparatus for Transporting Ethernet Services - Frames of customer traffic may be encapsulated by adding Mac-in-Mac (MiM) encapsulation fields for transportation of the frames over a portion of provider network. The MiM encapsulated traffic may be further encapsulated using VPLS by adding VPLS encapsulation fields for transportation of the frames over another portion of the provider network. The MiM encapsulations use provider network MAC addresses which enables VPLS MAC learning to occur using provider network MAC address space. MiM tunnels are mapped to VPLS service instances which are assigned pseudowire tags for transportation over the VPLS portion of provider network. The MiM header is retained when the MiM encapsulated frames are transported over the VPLS portion of the provider network. As VPLS frames exit the core network, the VPLS encapsulation fields are removed to extract the original MiM encapsulated frames for further transportation over the MiM portion of the provider network. | 2012-02-23 |
20120044940 | FLOODING-BASED ROUTING PROTOCOL HAVING AVERAGE-RATE AND BURST-RATE CONTROL - An enhanced, flooding-based routing protocol is described that provides burst-rate and average-rate flow control. A routing device comprises a network interfaces configured to send and receive packets over a layer-two (L2) communication medium. A flooding-based link state routing protocol executes on a processor of the routing device to maintain network topology information for a network and establish an adjacency with a peer router over the layer-two (L2) communication medium. A database of the routing device stores a minimum packet interval and a credit specified by the peer router for the adjacency. When sufficient credit has been allocated to the L2 communication medium, a scheduler of the router dequeues link state messages from an outbound packet queue and floods each of the link state messages to the L2 communication medium while maintaining at least the specified minimum packet interval between each of the plurality of link state messages. | 2012-02-23 |
20120044941 | DATA TRANSMISSION SYSTEM, DATA TRANSMISSION METHOD, AND DATA TRANSMISSION DEVICE - A source device includes a transmission unit selecting at least one destination device among a plurality of devices for transmitting data to the selected at least one destination device through a multiport switch and serial buses. The transmission unit includes a transmission ratio determination unit determining, when a plurality of destination devices are selected, a ratio of data transmitted among the selected plurality of destination devices within 1 cycle based on a reception rate of the selected plurality of destination devices. A destination device includes a reception unit receiving data from a source device through the multiport switch and serial buses. | 2012-02-23 |
20120044942 | SEMICONDUCTOR SYSTEM, RELAY APPARATUS, AND CHIP CIRCUIT - Highly efficient and low latency network transmission in consideration of a difference in the traffic characteristic and a memory access load which changes moment by moment is realized. A relay device transmits data on a networked communication bus between a bus master and a memory. The relay device includes a delay time processor for obtaining information on processing delay time in other relay devices located on a plurality of transmission routes on which the data is transmitted; and a low latency route selector for selecting a memory and one of transmission routes to the memory, among the plurality of transmission routes, based on obtained information on the processing delay time regarding the plurality of transmission routes. | 2012-02-23 |
20120044943 | Method and system for layer-2 pseudo-wire rapid-deployment service over unknown internet protocol networks - An International Standards Organization (“OSI”) Layer-2 (“Ethernet”) Pseudo-wire (“OSI Layer-1 type service”) appliance, method, system and hub service is disclosed. The method and system facilitate the rapid deployment of Layer-2 Pseudo-wires over unknown and untrusted Internet Protocol (“IP”) networks. The method and system facilitate the fluid edge of corporate networks and any situation where the Layer-3 network addresses cannot be changed. | 2012-02-23 |
20120044944 | System and Method for Carrying Path Information - A routing bridge in a Transparent Interconnection of Lots of Links (TRILL) domain includes a link coupled to a device in the TRILL domain, and an Intermediate System to Intermediate System (IS-IS) Traffic Engineering (TE) module that receives configuration information from the device, and that determines that data packets received by the routing bridge need to be routed to the device based upon the configuration information. The routing bridge receives a data packet, and routes the data packet to the link in response to the IS-IS TE module determining that the data packet needs to be routed to the device. | 2012-02-23 |
20120044945 | Mechanism for Implementation of System Signaling 7 (SS7) Layers as Microcontainer Beans in a Media Gateway - A mechanism for implementation of system signaling | 2012-02-23 |
20120044946 | ROUTER AND METHOD OF PASSING IPV6 DATA PACKETS THROUGH THE ROUTER - In a router and a method of passing IPv6 data packets through the router, the router receives a data packet from a local area network or the wide area network. The router determines if the data packet is a IPv6 data packet or a non-IPv6 data packet . The router routes the data packet to a destination address via the network layer of the open system interconnect, upon the condition that the data packet is a non-IPv6 data packet; or bridges the data packet to the destination address via the data link layer, upon the condition the data packet is a IPv6 data packet. | 2012-02-23 |
20120044947 | FLOODING-BASED ROUTING PROTOCOL HAVING DATABASE PRUNING AND RATE-CONTROLLED STATE REFRESH - An enhanced, flooding-based link state routing protocol is described that provides pruning of link state data and, when needed, rate-controlled refresh of the pruned link state data from other routers of the flooding domain. A routing device comprises a network interface to send and receive packets over a layer-two (L2) communication medium. The routing device includes a control unit coupled to the network interface, and a flooding-based link state routing protocol executing on a processor of the control unit. The link-state routing protocol establishes an adjacency with a peer router. A database of the routing device includes entries that store a plurality of link state messages for a flooding domain of the link state routing protocol, wherein at least one of the entries in the database stores a partial link state message having a header portion and a payload having pruned link state data. | 2012-02-23 |
20120044948 | MULTIPLE CORE NETWORK DEVICE WITH CORE REDUNDANCY - An embodiment of a network device includes a plurality of switch cores and a plurality of ports for receiving and transmitting data frames on a network disposed on a single integrated circuit, where switch core is coupled to a subset of the plurality of ports. The network device includes a deactivator configured to selectively deactivate at least a portion of one or more switch cores among the plurality of switch cores on the single integrated circuit, and the network device is configured to forward data frames among the plurality of ports based on a configuration of active portions of the plurality of switch cores. The deactivated portions may include ingress processing pipelines, egress processing pipelines, and/or entire switch cores. The portions of the switch cores to be deactivated may be dynamically be determined based on connectors of the integrated circuit. | 2012-02-23 |
20120044949 | ROUTE OPTIMIZATION OF A DATA PATH BETWEEN COMMUNICATING NODES USING A ROUTE OPTIMIZATION AGENT - The invention relates to optimizing a data path between two communication nodes. A route optimization agent (ROA) is determined in the current network of the second communication node, preferably on the data path between the two communication nodes. Then, an IP tunnel is established between the first communication node and the ROA, the IP tunnel and the corresponding security association of said IP tunnel being based on the home address of the first communication node in its home network. The first communication node may have two IP tunnels based on the same home address, one to its home agent and one to the ROA. Corresponding routing entries and binding cache entries need to be established in the ROA and the first communication node so that all data packets between the two communication nodes are exchanged via the established IP tunnel over the ROA. | 2012-02-23 |
20120044950 | ALLOCATION OF ROUTE TARGETS BASED ON SERVICE - A network controller to allocate route targets for communication services provided on one or more corresponding virtual private networks, the route targets identifying service providers associated with the virtual private networks and the communication services provided by the corresponding virtual private networks. | 2012-02-23 |
20120044951 | ALIGNMENT APPARATUS AND METHOD - An alignment apparatus for dynamically operating lanes in a high speed Ethernet device having multiple lanes, includes: a PCS (Physical Coding Sublayer) upper layer managing lane information regarding all of the lanes and operational lanes; a PCS transmission unit receiving the lane information from the PCS upper layer and inserting an alignment marker into the operational lanes; a PMA (Physical Medium Attachment) layer receiving the alignment marker from the PCS transmission unit and transmitting the same, and receiving alignment marker from another alignment apparatus; and a PCS reception unit receiving the lane information from the PCS upper layer, receiving the alignment marker from the PMA layer, and performing alignment on the operational lanes. | 2012-02-23 |
20120044952 | CONTROL DEVICE, NETWORK SYSTEM, TRANSMITTING DEVICE, RECEIVING DEVICE, CONTROL METHOD AND CONTROL PROGRAM - The control device is a system controller that controls a connection in a network system, which establishes a connection, by connecting by a channel corresponding to a frequency band, between a logical output plug of a transmitting device and a logical input plug connected to the transmitting device via a bus. The control device includes a channel setting unit. The channel setting unit sets non-overlapping channels to the output plugs of all the transmitting devices in the network system. | 2012-02-23 |
20120044953 | RECEPTION APPARATUS AND RECEPTION METHOD - A radio communication apparatus capable of alleviating a burden in setting a transmission format and suppressing increases in the scale of the apparatus. In this apparatus, space multiplexing adaptability detection section ( | 2012-02-23 |
20120044954 | COMMUNICATION DEVICE - A communication device reduces a processing time required at the time of mutually converting different wireless or wired communication protocol and improves a real-time property. The communication device includes two or more communication units which communicate with two or more external devices and a communication controller which processes communication data. The communication controller has table information that associates a communication path, a type of the communication unit, and conversion-info, and an input and output unit that inputs and outputs the table information. According to the added conversion-info, a conversion unit sequentially performs various conversion processes (protocol conversion, routing, communication quality evaluation, fragmentation/integration of communication interface, fragment/defragment process, frame multiplication/integration, and frequency setting). | 2012-02-23 |
20120044955 | DYNAMIC ADJUSTMENT OF BANDWIDTH ALLOCATION FOR AN IN-PROGRESS MEDIA SESSION - A client in a media session periodically transmits a “keepalive” message that indicates that a new amount of bandwidth is requested for the in-progress media session. A bandwidth policy service receives the keepalive message and determines whether the new amount of bandwidth can be allocated to the in-progress media session. If the service determines that the new amount of bandwidth can be allocated to the session, the service transmits a response to the keepalive message that indicates that the new amount of bandwidth has been allocated to the media session. The client receives the response and adjusts the bandwidth utilized by the in-progress session to the new amount of bandwidth. | 2012-02-23 |
20120044956 | JOINT DEMODULATION USING A VITERBI EQUALIZER HAVING AN ADAPTIVE TOTAL NUMBER OF STATES - Systems and methods for performing joint demodulation using a Viterbi equalizer having an adaptive total number of states are disclosed. Generally, a method includes joint demodulating a desired signal and one or more interfering signals with a Viterbi equalizer having an adaptive total number of states based on channel impulse response (CIR) coefficients associated with a desired signal and the one or more interfering signals. | 2012-02-23 |
20120044957 | Time-division multiplexing processing circuitry - An integrated circuit | 2012-02-23 |
20120044958 | RESONANT CLOCK AMPLIFIER WITH A DIGITALLY TUNABLE DELAY - A programmable frequency receiver includes a slicer for receiving data at a first frequency, a de-multiplexer for de-multiplexing the data at a second frequency, a programmable clock generator for generating a clock at the first frequency, and first and second resonant clock amplifiers for amplifying clock signals at the first and second frequencies. The resonant clock amplifiers include an inductor having a low Q value, allowing them to amplify clock signals over the programmable frequency range of the receiver. The second resonant clock amplifier includes digitally tunable delay elements to delay and center the amplified clock signal of the second frequency in the data window at the interface between the slicer and the de-multiplexer. The delay elements can be capacitors. A calibration circuit adjusts capacitive elements within a master clock generator to generate a master clock at the first frequency. | 2012-02-23 |
20120044959 | TERAHERTZ SOURCE - An optical system includes a first gain medium configured to be excited by an energy source and in response generate a first optical signal having first and second wavelengths. A Q-switch is disposed adjacent to the first gain medium for generating a pulsed optical signal in response to receiving the first optical signal. A non-linear optical crystal is configured to output a second optical signal having a frequency based on difference frequency generation of the first and second wavelengths of the pulsed optical signal. | 2012-02-23 |
20120044960 | UV ILLUMINATION FOR MITIGATION OF COLD TEMPERATURE PYROELECTRIC EFFECTS IN LITHIUM NIOBATE - An actively Q-switched laser based on UV illumination mitigates pyroelectric effects in lithium niobate. An exemplary embodiment comprises a pump source; a dichroic mirror having one end optically facing said pump source; a gain medium optically facing another end of said dichroic mirror; a polarizer having one end optically facing another end of said gain medium; a quarter wave plate having one end optically facing another end of said polarizer; and a electro-optic crystal having one end optically facing said quarter wave plate, at least one side of said electro-optic crystal being electrically connected to Q-switch driver to have the crystal function as a Q-switch. A UV illumination source illuminates a side surface of said electrical-optic crystal with UV light. An output mirror receives an output from said Q-switch and produces a laser emission. | 2012-02-23 |
20120044961 | Method of and photonic device for eliminating or substantially reducing sensitivity to polarization of an injected optical signal and method of manufacturing such photonic device - An photonic device, comprising one section of a material which is different from the material of another section such that the two sections present different optical birefringent index values. This causes a first set of polarization modes to move in a spectral space with a different velocity than a second set of polarization modes. A bias current, or voltage, is used for controlling the overall birefringence effect in the device. The biasing for controlling the birefringence effect is performed such the TE modes and the TM modes of the device are made to coincide in their respective spectral position. Thus the device is made insensitive, or presents substantially reduced sensitivity, to the polarization of any incoming optical signal. | 2012-02-23 |
20120044962 | LASER OSCILLATOR CONTROL DEVICE - A laser oscillator control device includes a controller having a transmitter section and a receiver section; a laser oscillator having a transmitter section and a receiver section and communicating with the controller via a communication line; wherein the laser oscillator control device outputs a control signal from the controller to the laser oscillator, based on a status signal indicating operational state of the laser oscillator sent from the laser oscillator to the controller. The controller has an alternating signal transmitter circuit that generates an alternating signal that changes at a predetermined period, and sends this alternating signal to the laser oscillator, and the laser oscillator has a return signal transmitter circuit which generates a return signal that changes periodically in correspondence to the alternating signal from the controller, and sends this return signal to the controller. Furthermore, the controller has a monitoring circuit monitoring the return signal from the laser oscillator, and if it determines that there is an abnormality in the return signal, outputs a stop control signal for stopping laser beam irradiation by the laser oscillator. | 2012-02-23 |
20120044963 | APPARATUS FOR STABILIZING SECOND HARMONIC PULSE OUTPUT IN A LASER SYSTEM OPERATING BY PULSES - The present invention relates to an apparatus for stabilizing second harmonic wave pulse output in a laser system operating by pulses. The apparatus of the present invention comprises: a pulse laser oscillating unit ( | 2012-02-23 |
20120044964 | Semiconductor Interband Lasers and Method of Forming - A semiconductor interband laser that includes a first cladding layer formed using a first high-doped semiconductor material having a first refractive index/permittivity and a second cladding layer formed using a second high-doped semiconductor material having a second refractive index/permittivity. The laser also includes a waveguide core having a waveguide core refractive index/permittivity, the waveguide core is positioned between the first and the second cladding layers. The waveguide core including an active region adapted to generate light based on interband transitions. The light being generated defines the lasing wavelength or the lasing frequency. The first refractive index and the second refractive index are lower than the waveguide core refractive index. The first cladding layer and/or the second cladding layers can also be formed using a metal. | 2012-02-23 |
20120044965 | SEMICONDUCTOR LASER APPARATUS AND OPTICAL APPARATUS - This semiconductor laser apparatus includes a base having a step portion, a first upper surface on a lower side of the step portion and a second upper surface on an upper side of the step portion, a first semiconductor laser device bonded onto the first upper surface, having a first light-emitting region on an upper side thereof, and a second semiconductor laser device bonded onto the second upper surface, having a second light-emitting region on a lower side thereof. The first light-emitting region is located above the second upper surface in a state where the base is horizontally arranged. | 2012-02-23 |
20120044966 | LIGHT SOURCE WITH A DIODE LASER AND A LARGE NUMBER OF OPTICAL FIBERS - A light source, e.g., for optical excitation of a laser device, includes a diode laser having a large number of emitters and a light-guiding device, the light-guiding device including a large number of optical fibers. Each fiber has a first end and a lateral surface, the first ends being arranged relative to the emitters in such a manner that light generated by the emitters is coupled into the first ends of the optical fibers, the optical fibers being arranged in abutting relationship along their lateral surfaces at least in the region of their first ends. The optical fibers are connected in the region of their first ends to a fiber support. | 2012-02-23 |
20120044967 | Capping Method For Laser Diode Protection - A method includes: positioning a laser in the cavity in an end of a slider, wherein the laser has an output facet positioned adjacent to a first wall of the cavity to define a first gap between the output facet and the first wall of the cavity, and filling at least a portion of the first gap adjacent to the output facet. An apparatus including a slider including a cavity in a trailing end of the slider, a laser positioned in the cavity and having an output facet positioned adjacent to a first wall of the cavity to define a first gap between the output facet and the first wall of the cavity, and a sealing material filling at least a portion of the first gap adjacent to the output facet is also provided. | 2012-02-23 |
20120044968 | FUEL CLOUD POINT OR FREEZE POINT SENSOR WITH COLLINEAR OPTICAL GEOMETRY - A system includes a sensing cell having a walled structure configured to receive a fuel sample within an interior space of the walled structure. The sensing cell also has at least one cooling surface located on at least a portion of the walled structure and configured to cool the fuel sample. The sensing cell further has an optical port configured to couple to one or more optical fibers and to provide first radiation to the fuel sample. In addition, the sensing cell has a mirror configured to reflect the first radiation in order to provide second radiation to the optical port. The optical port defines a collinear optical geometry for providing the first radiation to the fuel sample and receiving the second radiation through the fuel sample. The system also includes at least one cooler configured to cool the fuel sample in the sensing cell by cooling the at least one cooling surface. | 2012-02-23 |
20120044969 | ENGINE TURBINE TEMPERATURE MEASUREMENT - An assembly for sensing temperature in a gas turbine engine includes a first array of RTDs connected in parallel, a second array of RTDs connected in parallel, and a circuit electrically connected to the first and second arrays. The circuit determines an approximate temperature of a medium as a function of resistance of the first and second arrays. | 2012-02-23 |
20120044970 | Temperature-Responsive Photonic Crystal Device - A temperature-responsive photonic crystal device comprising having a temperature-responsive photonic crystal material, whereby exposure of the device to a temperature above a predetermined threshold temperature is indicated by a detectable change in the device. | 2012-02-23 |
20120044971 | POLARIZATION-MAINTAINING FIBER AND OPTICAL FIBER SENSOR USING SAME - The polarization-maintaining fiber of the invention includes a core ( | 2012-02-23 |
20120044972 | TEMPERATURE SENSOR - A temperature sensor ( | 2012-02-23 |
20120044973 | SYSTEMS AND METHODS FOR IMPROVING RECEPTION OF DATA IN WIRELESS COMMUNICATION ENVIRONMENTS - Generally described, the disclosed subject matter is directed to improving the reception of data in wireless communication environments. In accordance with one embodiment, a method is provided for improving the reception of meter data in an AMR system. In particular, the method includes obtaining a sample of data indicative of channel quality for each transmission channel in the operational frequency band of the endpoint device. Then, the data is analyzed and a determination is made as to whether the reception of data by the collection system can be improved. If the reception of data by the collection system can be improved, a command is generated for reprogramming the endpoint device. In one embodiment, the command includes channel reprogramming data for reprogramming the endpoint device. | 2012-02-23 |
20120044974 | RADIO TERMINAL DEVICE, RADIO BASE STATION DEVICE, RADIO RANGING SYSTEM, AND RADIO RANGING METHOD - Disclosed are a radio terminal device and the like, which achieve an improvement in the accuracy of ranging between a UWB reader and a UWB tag regardless of whether an active method or a semi-passive method. In a terminal ( | 2012-02-23 |
20120044975 | MULTI-CARRIER RECEIVER, MULTI-CARRIER TRANSMITTER AND MULTI-CARRIER TRANSCEIVER SYSTEM - A multi-carrier receiver, multi-carrier transmitter and a multi-carrier transceiver system are provided. The multi-carrier receiver includes at least a first processing unit, a routed switch and a second processing unit. The first processing unit has M first processing paths, performs intensity processing to at least one RF signal for outputting sub-carrier signals. The routed switch has M input terminals and N output terminals, where the M input terminals are respectively coupled to the M first processing paths and receive the sub-carrier signals. The routed switch connects each input terminal to at least one output terminal or none of the output terminals according to a control signal. The second processing unit has N second processing paths respectively coupled to the N output terminals for demodulating the sub-carrier signals and performing an analog-to-digital conversion to the demodulated signals for generating digital signals, where M and N are greater than 0. | 2012-02-23 |
20120044976 | MULTI-CARRIER RECEIVER, MULTI-CARRIER TRANSMITTER AND MULTI-CARRIER TRANSCEIVER SYSTEM - A multi-carrier receiver, multi-carrier transmitter and a multi-carrier transceiver system are provided. The multi-carrier receiver includes a first processing unit, a router and a second processing unit. The first processing unit has M first processing paths, applies intensity processing on at least a RF signal for outputting sub-carrier signals. The router has M input terminals and N output terminals, where the M input terminals are respectively coupled to the M first processing paths and receive the sub-carrier signals. The router outputs the sub-carrier signals to the N output terminals and the received signal at each output terminal of the router includes the sub-carrier signal at each input terminal. The second processing unit has N second processing paths respectively coupled to the N output terminals for demodulating the sub-carrier signals and applies an analog-to-digital conversion on the demodulated signals for generating digital signals, where M and N are greater than 0. | 2012-02-23 |
20120044977 | SYSTEM AND METHOD FOR DESCRAMBLING THE PHASE OF CARRIERS IN A MULTICARRIER COMMUNICATIONS SYSTEM - A system and method that demodulates the phase characteristic of a carrier signal are described. The scrambling of the phase characteristic of each carrier signal includes associating a value with each carrier signal and computing a phase shift for each carrier signal based on the value associated with that carrier signal. The value is determined independently of any input bit value carried by that carrier signal. The phase shift computed for each carrier signal is combined with the phase characteristic of that carrier signal so as to substantially scramble the phase characteristic of the carrier signals. Bits of an input signal are modulated onto the carrier signals having the substantially scrambled phase characteristic to produce a transmission signal with a reduced PAR. | 2012-02-23 |
20120044978 | COMMUNICATION APPARATUS, BASE STATION AND COORDINATED MULTIPOINT COMMUNICATION METHOD - The communication apparatus includes: a channel estimating unit for acquiring a channel estimation value of a channel between the communication apparatus and a cell base station of a cell in which the communication apparatus is located; a transmitter transmitting the channel estimation value or information based on the channel estimation value to the cell base station; a receiver receiving coordinated multipoint (CoMP) message from the cell base station, the CoMP message indicates the CoMP transmission mode, the codebook or precoding matrix used by the cell base station, and the codebook or precoding matrix used by a coordinated base station that coordinates with the cell base station; a channel matrix forming unit for acquiring a channel matrix according to the CoMP message; and a decoder decoding received signals according to the channel matrix and the CoMP message. | 2012-02-23 |
20120044979 | SYSTEM AND METHOD FOR COMMUNICATING INFORMATION USING TIME-AND-FREQUENCY-BOUNDED BASE FUNCTIONS - Disclosed is a system and method for transmitting and receiving digital data, wherein (1) a receiving mechanism is configured to receive an incoming stream of digital information carried on at least one incoming line; (2) a weighing mechanism is configured to generate respective weighing factors using the digital information; (3) a signal generation mechanism is configured to generate a plurality of smooth Time-and-Frequency-Bounded functions; and (4) a mapping mechanism is coupled to the signal generation mechanism, wherein the mapping mechanism is configured to apply weighing factors generated by the weighing mechanism to a corresponding Time-and-Frequency-Bounded function, and subsequently summing the weighted Time-and-Frequency-Bounded functions to thereby generate a corresponding plurality of Time-and-Frequency-Bounded packets, the plurality of Time-and-Frequency-Bounded packets comprising a Time-and-Frequency-Bounded information stream, and a transmission mechanism transmits the plurality of Time-and-Frequency-Bounded packets over the transmission medium. | 2012-02-23 |
20120044980 | MULTI-MODE HIGH EFFICIENCY LINEAR POWER AMPLIFIER - A power amplifier includes a plurality of amplification paths in which at least one amplification path is selectively enabled and disabled, wherein each amplification path includes an output impedance modification element and an output phase shift element that is operable independently from the output impedance modification element, and wherein the output impedance modification element in each amplification path provides selective impedance for each amplification path. | 2012-02-23 |
20120044981 | METHOD, APPARATUS, COMPUTER PROGRAM AND COMPUTER PROGRAM DISTRIBUTION MEDIUM FOR A COMMUNICATION RECEIVER - The invention relates to an apparatus comprising, a sampler configured to receive and sample a signal for producing signal samples; a first configured to receive or determinate a scaling factor for a reliability factor and to determine power or energy of an input signal of an interference canceller; a generator configured to generate an estimated replica of a transmitted desired signal by using the signal samples; a residual processor configured to subtract the estimated replica from the input signal of an interference canceller for generating a residual signal and to determine power or energy of the residual signal; and a divider configured to divide the power or energy of the residual signal by the power or energy of the input signal of an interference canceller and a multiplier configured to multiply a result of the division by the scaling factor of a reliability factor. | 2012-02-23 |
20120044982 | CQI AND RANK PREDICTION FOR LIST SPHERE DECODING AND ML MIMO RECEIVERS - Systems and methodologies are described that facilitate integrating a list-sphere decoding design in a multiple input-multiple output (MIMO wireless communication environment. According to various aspects, optimal rank selection and CQI computation for an optimal rank can be performed in conjunction with a non-linear receiver, such as a maximum life (ML) MMSE receiver, a non-linear receiver with a list-sphere decoder, and the like. Optimal rank selection can be performed using a maximum rank selection protocol, a channel capacity-based protocol, or any other suitable protocol that facilitates rank selection, and CQI information can be generated based in part on effective SNRs determined with regard to a selected optimal rank. | 2012-02-23 |
20120044983 | Channel Equalization Using Application Specific Digital Signal Processing In High-Speed Digital Transmission Systems - A method and circuit for performing channel equalisation in a high speed transmission system comprising a transmitter and receiver. An application specific digital signal processor, ASDSP, performs channel equalisation and compensation on digital data received from an analogue-to digital converter of the receiver. The ASDSP is operable to execute an application specific set of op-codes needed for performing channel equalisation and compensation. An ASDSP register is coupled between the ASDSP and a system CPU in a feedback loop for performing channel equalisation at the receiver. The ASDSP stores equalizer parameters and bit error rate measurements used by the ASDSP for performing channel equalisation and compensation. An ASDSP program storage memory, coupled to and accessible by the ASDSP, stores an ASDSP micro-sequence program for controlling the processing steps for channel equalisation and dataflow through the ASDSP. | 2012-02-23 |
20120044984 | High-Speed Signaling Systems with Adaptable Pre-Emphasis and Equalization - A signaling system includes a pre-emphasizing transmitter and an equalizing receiver coupled to one another via a high-speed signal path. The receiver measures the quality of data conveyed from the transmitter. A controller uses this information and other information to adaptively establish appropriate transmit pre-emphasis and receive equalization settings, e.g. to select the lowest power setting for which the signaling system provides some minimum communication bandwidth without exceeding a desired bit-error rate. | 2012-02-23 |
20120044985 | TRANSMISSION DEVICE AND METHOD OF DETERMINING TRANSMISSION DATE FORMAT - To allow a broadcast transmission to be preformed successfully. | 2012-02-23 |
20120044986 | LOW COMPLEXITY ADAPTIVE FILTER - For a first series of video blocks, an encoder determines two filters, a first decoding filter that is to be transmitted to a decoder and a first interim filter that is not to be transmitted to the decoder. The first interim filter is used to determine which coded units of a second series of video blocks are to be filtered. After a decision is made as to which coded units of the second series of video blocks are to be filtered, the encoder determines a second decoding filter for the second series of video blocks and transmits the second decoding filter to the decoder. In addition to determining the second decoding filter, the encoder also determines a second interim filter, which the encoder uses to determine which coded units of a third series of video blocks are to be filtered. This process may repeat for many series of video blocks. | 2012-02-23 |
20120044987 | Entropy coder supporting selective employment of syntax and context adaptation - Entropy coder supporting selective employment of syntax and context adaptation. In video coding, different entropy coding is selectively and adaptively employed based on local and/or remote consideration(s). For example, certain entropy coding may be context adaptive while other entropy coding may be non-context adaptive, and may operate in accordance with syntax or without syntax. Selective adaptation between context adaptive entropy coding and non-context adaptive entropy coding, as well as those which operate using syntax or without syntax may be made based on one or more local and/or remote characteristic(s). Transitioning between the various end to end configurations midstream can occur upon reference frame transitions with appropriate header information leadoff in a given bitstream. A given device (e.g., encoder or transcoder) may be implemented to transition independently, in cooperation with, or under the direction/coordination with one or more other devices within the communication system. | 2012-02-23 |
20120044988 | FAST ALGORITHM ADAPTIVE INTERPOLATION FILTER (AIF) - An apparatus and method are taught for estimating an optimized sub-pixel interpolation filter using iterative and non-iterative estimations as needed for sub-pixel motion compensation and motion estimation in a video codec for improving coding efficiency. Motion vector information and mode decisions are passed from the first encoding stage which uses predetermined interpolation to at least a second encoding stage which uses an estimated adaptive interpolation filter determined during the first encoding stage. Processing overhead is reduced within the subsequent stages. Embodiments are described in which additional stages perform iterative encoding and estimation of interpolation filter in an n-th iteration. | 2012-02-23 |
20120044989 | TECHNIQUES FOR IDENTIFYING BLOCK ARTIFACTS - Techniques are described that can be used to identify blocking artifacts in both vertical and horizontal directions. For blocking artifacts in a vertical direction, a horizontal gradient is determined for a pixel. Gradient smoothing is performed for pixels in the row of the pixel. A ratio of the horizontal gradient over the gradient smoothing is determined. Any pixel with a ratio above a threshold and in a segment with a length that exceeds a threshold length as potentially having block artifacts. Each column with pixels that potentially have block artifacts is inspected to determine whether a number of block artifacts in the column are a local maximum and whether there is a sufficient number of blocking artifacts in the column. Columns that satisfy both conditions are considered to include blocking artifacts. To determine blocking artifacts in the horizontal direction, a similar technique is used as described with regard to vertical direction except row and columns are reversed. | 2012-02-23 |
20120044990 | Data Compression For Video - The present invention provides a technique for performing one or more aspects of video coding such as quantization, intra prediction coding or inter prediction coding in dependence on a perceptual model taking into account human sensitivity to data in the video signal. The perceptual model may relate to spatial frequency, temporal frequency, contrast sensitivity, colour sensitivity, a structural metric, and/or one or more parameters affecting perception such as motion in the video, the distance of a recipient user from the screen, and the size, aspect ratio or resolution of the screen of the recipient terminal. | 2012-02-23 |
20120044991 | MOVING IMAGE CODING APPARATUS AND MOVING IMAGE CODING METHOD - A moving image coding apparatus of one embodiment includes a prediction image generator that generates a prediction image abased on a moving image, a processor that performs deblocking process based on residual data that is generated based on a prediction residual being a difference between an input image of the moving image and the prediction image, and the prediction image, and an evaluator that evaluates the deblocking process based on the input image, the residual data, the prediction image, and the deblocked data. The moving image coding apparatus further includes a parameter determiner that calculates a threshold for determining presence or absence of the deblocking process based on a result of the evaluation by the evaluator and determines a parameter for deblocking based on the threshold, and an encoder that codes moving image data based on the prediction residual and the parameter. | 2012-02-23 |
20120044992 | LOW COMPLEXITY ADAPTIVE FILTER - An interim filter determined for a previous series of video blocks can be applied to a current series of video blocks to determine an interim filter map for the current series of video blocks. Based on the interim filter map, a decoding filter can be determined. By applying the decoding filter to the current series of video blocks, a decoding filtering map can be determined. Based on CUs identified as having filtering off by the decoding filtering map, an interim filter for the current series of video blocks can be determined. The decoding filter and decoding filtering map can be transmitted to a decoder, while the interim filter and interim filter map may not be transmitted to a decoder. The interim filter for the current series of video blocks can be used to generate an interim filter map for a next series of video blocks. | 2012-02-23 |
20120044993 | Image Processing Device and Method - The present invention relates to an image processing device and method which enable compression efficiency to be improved. | 2012-02-23 |
20120044994 | IMAGE PREDICTIVE ENCODING AND DECODING DEVICE - An image predictive encoding device can efficiently encode an image, while suppressing an increase in prediction information and reducing the prediction error of a target block. In an image predictive encoding device, according to one embodiment, to produce a prediction signal of a partition in a target region, it is decided whether prediction information of a neighbouring region can be used. When prediction information of the neighbouring region can be used, a region width of the partition where the prediction information of the neighbouring region is used to produce the prediction signal is determined. The prediction signal of the target region is produced from a reconstructed signal based on at least one of the region width, the prediction information of the target region, and the prediction information of the neighbouring region. The prediction information, information identifying the region width, and a residual signal are encoded. | 2012-02-23 |
20120044995 | INTERPOLATION OF VIDEO COMPRESSION FRAMES - Coding techniques for a video image compression system involve improving an image quality of a sequence of two or more bi-directionally predicted intermediate frames, where each of the frames includes multiple pixels. One method involves determining a brightness value of at least one pixel of each bi-directionally predicted intermediate frame in the sequence as an equal average of brightness values of pixels in non-bidirectionally predicted frames bracketing the sequence of bi-directionally predicted intermediate frames. The brightness values of the pixels in at least one of the non-bidirectionally predicted frames is converted from a non-linear representation. | 2012-02-23 |
20120044996 | IMAGE PROCESSING DEVICE AND METHOD - The present invention relates to an image processing device an method whereby processing efficiency can be improved. | 2012-02-23 |
20120044997 | SYSTEM AND METHOD FOR BOUNDARY MOTION VECTOR CORRECTION IN MOTION COMPENSATED FRAME RATE - A method of processing video data includes: receiving a first video frame with first blocks of pixels associated with a known motion vector and a second video frame with second blocks of pixels, the second blocks corresponding to the first blocks, and uncovered blocks adjacent to the first frame boundary not corresponding to the first blocks in the first video frame; determining a first block for each line segment in the second video frame corresponding to a block in the first video frame, wherein the first block has the known motion vector from the first video frame; and assigning a motion vector for at least one of the line segments in the second video frame to the uncovered blocks in the line segment of the second video frame between first block and the first frame boundary. | 2012-02-23 |
20120044998 | TECHNIQUE FOR ESTIMATING MOTION AND OCCLUSION - A method and apparatus for estimating motion and occlusion is disclosed. In one aspect, a method of estimating motion and occlusion between three or more frames in a video stream includes identifying a plurality of motion vector candidates for each of a forward direction and a backward direction, generating a plurality of candidate pairs, determining an energy for at least some of the plurality of candidate pairs using a processor by jointly evaluating the forward motion vector and the backward motion vector of at least some of the plurality of candidate pairs based on interframe difference, spatial motion correlation, temporal motion correlation, and spatial occlusion correlation, and estimating motion and occlusion between the three or more frames by selecting a candidate vector from the plurality of candidate vectors based on the determined energies. | 2012-02-23 |
20120044999 | METHOD AND APPARATUS FOR ENCODING AND DECODING MULTILAYER VIDEOS - Provided are methods and apparatuses for encoding and decoding a bit stream in a multilayer video system in which a base layer and a higher layer use different codecs. The decoding method includes: receiving a bit stream including a higher-layer stream and a base-layer stream, the higher-layer stream including at least one of an identifier for identifying a codec for the higher-layer stream, information indicating features of the higher-layer stream, and information indicating a relationship between the higher-layer stream and a lower-layer stream; demultiplexing the higher-layer stream and the base-layer stream from the bit stream; decoding the base-layer stream; and decoding the higher-layer stream based on the identifier and the information indicating the features of the higher-layer stream. | 2012-02-23 |
20120045000 | System and Method for Amplitude Control of a Crystal Oscillator - In accordance with some embodiments of the present disclosure, an oscillator may include a crystal resonator and a squaring circuit coupled to the crystal resonator and configured to convert a sinusoidal signal produced by the crystal resonator to a square-wave signal, the squaring circuit comprising a bias circuit configured to transmit a selected bias voltage for the squaring circuit, the selected bias voltage selected from a plurality of potential bias voltages. In accordance with this and other embodiments of the present disclosure, an oscillator may include a crystal resonator, an inverter coupled in parallel with the crystal resonator, and a programmable voltage regulator coupled to the inverter. The programmable voltage regulator may be configured to supply a first supply voltage to the inverter during a startup duration of the oscillator, and supply a second supply voltage to the inverter after the startup duration, wherein the second supply voltage is lesser than the first supply voltage. | 2012-02-23 |
20120045001 | Method of Generating a Codebook - A method of generating a mixed codebook including a plurality of codewords for a communication network is provided, wherein the method includes generating a first codeword of a first codeword type according to a first generation scheme, generating a second codeword of a second codeword type according to a second generation scheme which is different to the first generation scheme, and combining the first codeword and the second codeword to a mixed codebook. | 2012-02-23 |
20120045002 | System and Method for Sharing Information Between Two or More Devices - A system and method for sharing digital information between two or more devices in close proximity using a sound signal. The sending device obtains a globally unique share identifier from an information sharing system. The sending device then uploads the digital information to be shared to the information sharing system and transmits the sharing identifier to a receiving device via sound signals. The receiving device communicates the sharing identifier to the information sharing system and receives the digital information from the information sharing system. The information transferred from the sharing system can be password encrypted, the information transfer can be limited to a specified time period or the information transfer can be limited to receiving devices located within a specified geographic extent. In some embodiments of the invention, the sending device broadcasts a sound signal with a sharing identifier encoded in the sound stream and a plurality of receiving devices access digital information at the information sharing system using the sharing identifier as recovered from the sound stream. | 2012-02-23 |
20120045003 | COMMUNICATION STATION AND METHOD FOR EFFICIENTLY PROVIDING CHANNEL FEEDBACK FOR MIMO COMMUNICATIONS - Embodiments of a communication station and methods for efficiently providing channel feedback for MIMO communications over an OFDM channel are generally described herein. In some embodiments, receiving stations may perform a recursive differential quantization of channel information across time and/or frequency to generate quantized differential channel feedback. The quantized differential channel feedback from each receiving station may be used by a transmitting station to precode MIMO transmissions to one or more of the receiving stations. The quantized differential channel feedback may be either a quantized differential channel matrix or a quantized differential beamforming matrix. | 2012-02-23 |
20120045004 | CORRELATOR AND DEMODULATION DEVICE INCLUDING THE CORRELATOR - The Present invention provides a correlator including, a read-out processing circuit that reads out an OFDM signal in RAM as 2n−1 number of delay OFDM signals that are increased and delayed sequentially with their adjusted read-out timings. Complex conjugate circuits that outputs complex conjugates of the inputted n | 2012-02-23 |
20120045005 | COMMUNICATION METHOD OF A TERMINAL AND AN ACCESS POINT FOR MULTI-USER TRANSMISSION OPPORTUNITY (TXOP) POWER SAVING - Provided is a terminal and an access point in an active mode for multi-user transmission opportunity (TXOP) power saving that may decrease power consumption by changing an operation state of the terminal from an awake state to a sleep state if there is no stream of data to be transmitted during a TXOP duration. | 2012-02-23 |
20120045006 | RADIO FREQUENCY FRONT END CIRCUIT - A RF front end circuit includes a processor, a main receiving (Rx) path and an adjustment path connected between the processor and an external antenna array in parallel, and a coupling module coupled with the main Rx path. The adjustment path includes an adjustment transmitting (Tx) path, an adjustment Rx path, and a DSP. The adjustment Tx path includes a coupling switch. When the circuit operates in an adjustment mode, the switch is connected to the coupling module, the adjustment Rx path receives and demodulates a first analog signal, the DSP converts the first analog signal to a digital signal, clipping a peak of the digital signal, and converts the digital signal to a second analog signal, the adjustment Tx path modulates and reverses the phase of the second analog signal, and the coupling module couples the second analog signal to the main Rx path to counteract noise received thereby. | 2012-02-23 |
20120045007 | INSERTING AND DECODING REPLICATED DATA SYMBOLS IN WIRELESS COMMUNICATIONS - Examples are generally described that include transmission methods including inserting at least a portion of data from a first data stream into a second data stream to be transmitted over a communications channel. On receipt of the two data streams, examples of receiving methods include receiving the replicated data, decoding the replicated data using an estimated channel matrix, and generating an updated estimate of the channel matrix based, at least in part, on the replicated data. | 2012-02-23 |
20120045008 | PILOT PATTERN FOR MIMO OFDM - In an embodiment, a transmitter includes a transmission path that is configurable to generate first pilot clusters each including a respective first pilot subsymbol in a first cluster position and a respective second pilot subsymbol in a second cluster position such that a vector formed by the first pilot subsymbols is orthogonal to a vector formed by the second pilot subsymbols. For example, where such a transmitter transmits simultaneous orthogonal-frequency-division-multiplexed (OFDM) signals (e.g., MIMO-OFDM signals) over respective channels that may impart inter-carrier interference (ICI) to the signals due to Doppler spread, the pattern of the pilot symbols that compose the pilot clusters may allow a receiver of these signals to estimate the responses of these channels more accurately than conventional receivers. | 2012-02-23 |
20120045009 | TRANSMISSION DEVICE FOR GENERATING AN ANALOG MODULATED PULSE TRAIN AND FOR TRANSMITTING THE SAME AND A RECEIVING DEVICE FOR RECEIVING A RESPECTIVE SIGNAL - The present invention relates to a transmitting device and to a receiving device. In particular, it relates to a transmitting device for producing an analogue modulated pulse train and for emitting the same, comprising a pulse generator ( | 2012-02-23 |
20120045010 | RECEIVER, METHOD FOR CANCELLING INTERFERENCE THEREOF AND TRANSMITTER FOR THE SAME - Provided is a method for eliminating an interference operating on a receiver of a transmitter in a communications system, which includes transmitting at least one user signal; changing user phase information to be separated from interference phase information by a preset difference, when receiving the user phase information of the user signal and the interference phase information of an interference signal from at least one receiver; and transmitting at least one other user signal according to the changed user phase information. | 2012-02-23 |
20120045011 | METHOD FOR SETTING CYCLIC SHIFT CONSIDERING FREQUENCY OFFSET - A method for establishing a cyclic shift sequence to provide against the frequency offset is disclosed. The method calculates a distance between a channel response position of the sequence and an alias channel response position caused by a frequency offset, calculates the number of cyclic shifts per group according to the calculated distance, and establishes the cyclic shift (CS)-applying interval. This method easily establishes a cyclic shift (CS) interval at a specific location having no overlapping by considering a channel response of a reception (Rx) sequence and an alias location of this reception (Rx) sequence, although a reception (Rx) signal is shifted by a channel delay spreading or a propagation delay irrespective of categories of a domain generating a sequence, so that it can greatly reduce the number of the detection errors and the false alarm rate. And, if a sequence of the cyclic shift (CS) is allocated to a cell having a frequency offset of more than a predetermined level, the present invention can minimize the influence of a frequency offset on a high-mobility cell. | 2012-02-23 |
20120045012 | METHOD AND DEVICE FOR TRANSMITTING DATA IN A WIRELESS COMMUNICATION NETWORK - A method and device for transmitting data in a wireless communication network uses both cognitive frequency diversity and antenna diversity. The method includes identifying a bandwidth of one or more potentially interfering frequency sub-bands from one or more potentially interfering signals in a radio frequency (RF) band (step | 2012-02-23 |
20120045013 | METHOD FOR REAL-TIME ONLINE CONTROL OF HYBRID NONLINEAR SYSTEM - The present invention provides a method for real-time online control of hybrid nonlinear system, characterized in that, it comprises the following steps: a. the current observational state of plant in the network is transmitted to first controller, where said first controller is used to provide real-time online control for plant, which guarantees the asymptotic stability of the controlled plant in the network; b. Said first controller obtains the current control output information according to the current observation state information; c. Giving said output control information to said controlled plant in the network as feedback, wherein said controlled plant in the network is nonlinear hybrid system. The present invention realizes the control of nonlinear hybrid system through network by providing control method with quantized controller to guarantee the asymptotic stability of the system. Especially, the load capacity of network will be greatly reduced by transmitting the observation information after being quantized. | 2012-02-23 |
20120045014 | RESOURCE BLOCK MAPPING FOR CROSS-CARRIER ASSIGNMENTS - Methods and apparatuses are provided for cross-carrier decoding and mapping of data and control information in a wireless communication system. | 2012-02-23 |
20120045015 | SIGNAL TRANSMISSION DEVICE, AND TRANSMISSION CONTROL METHOD - There is provided a signal transmission device including a first communication module including a first signal transmission unit for transmitting a first transmission signal having first amplitude to a second communication module through a predetermined transmission path, and the second communication module including a second signal transmission unit for transmitting a second transmission signal having second amplitude different from the first amplitude to the first communication module through the predetermined transmission path, and a transmission timing adjustment unit for adjusting a transmission timing of the second transmission signal by the second signal transmission unit so that a transition timing of the first transmission signal transmitted from the first communication module and a transition timing of the second transmission signal coincide with each other at a receiving end of the first communication module. | 2012-02-23 |
20120045016 | Transmission Circuit and Method for Transmitting a Bit Sequence to be Transmitted - A transmission circuit and method for transmitting a bit sequence to be transmitted is provided that includes a dividing device for dividing the bit sequence into an even-numbered bit sequence and into an odd-numbered bit sequence, a first device for forming the first sampled values of a first fundamental wave depending on the even-numbered bit sequence, a second device for forming second sampled values of a second fundamental wave depending on the odd-numbered bit sequence, the second fundamental wave being shifted relative to the first fundamental wave by a time period, and includes a summator for summation of the first sampled values of the first fundamental wave and the second sampled values of the second fundamental wave to form an output value sequence. | 2012-02-23 |
20120045017 | TRANSFORM-BASED SYSTEMS AND METHODS FOR RECONSTRUCTING STEERING MATRICES IN A MIMO-OFDM SYSTEM - Embodiments provide a transform-based method for representing steering matrices in transmit beamforming for a multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) system. Beamforming embodiments generate a transform-based representation of steering matrices for at least a subset of sub-carriers for which channel information is known. In some embodiments, a beamformer is able to receive transform matrices information for at least a subset of channel sub-carriers, and generate corresponding channel sub-carrier steering matrices. Some embodiments of a beamformee are able to map at least a subset of channel sub-carrier steering matrices to corresponding transform matrices information prior to transmitting the transform matrix information to a beamformer. Other embodiments of a beamformer are able to receive channel information for at least a subset of sub-carriers of a channel, and compute a transform-based representation of a steering matrix for each sub-carrier for which channel information is known. | 2012-02-23 |
20120045018 | COMMUNICATION APPARATUS, COMMUNICATION METHOD AND BASE STATION - The present invention relates to communication apparatus, communication method and base station. The communication apparatus has a plurality of antennas and is capable of using a Multi-Input Multi-Output (MIMO) technique, comprising: a MIMO mode determining unit configured to determine a MIMO mode to be adopted; a precoding matrix information determining unit configured to determine precoding matrixes according to the determined MIMO mode; a transmitting unit configured to transmit information related to the precoding matrix, wherein, in case the MIMO mode to be adopted is a single-cell multi-user MIMO mode, the precoding matrix information determining unit determines a precoding matrix to be used by a service base station in a cell where the communication apparatus locates to communicate with the communication apparatus, and determines a precoding matrix to be used by the service base station to communicate with other communication apparatus in the cell which is grouped with the communication apparatus. | 2012-02-23 |
20120045019 | METHOD AND APPARATUS FOR DETERMINING A PRECODING MATRIX - Disclosed is a method for determining precoding matrix based on an open-loop MIMO scheme, which can enhance a diversity gain at a static communication environment or a low-mobility communication environment. The method for determining precoding matrix applies a first precoding matrix to downstream data to transmit the downstream data through a plurality of antennas, the first precoding matrix being selected from a codebook which comprises a plurality of precoding matrixes, and changes the first precoding matrix to a second precoding matrix per predetermined period, and applying the second precoding matrix to the downstream data to transmit the downstream data through the antennas. The second precoding matrix is a precoding matrix corresponding to an index which has been shifted by a certain value from an index of the first precoding matrix in a direction where an index of a precoding matrix increases, in the codebook | 2012-02-23 |
20120045020 | DIGITAL RF TRANSMITTER OPTIMIZED FOR LINEAR QUANTIZED IQ UP CONVERSION - The digital RF transmitter includes a decoder for receiving the in phase (I) and quadrature (Q) digital baseband signals, a phase generator for generating eight waveforms at a carrier frequency where each phase is a multiple of 45 degrees, a first set of main amplifiers of fixed output power, a second set of auxiliary amplifiers of fixed output power such that the ratio of the voltage amplitudes at the outputs of the second set of auxiliary amplifiers to the voltage amplitudes at the outputs of the first set of main amplifiers is fixed at sqrt(2)−1, and a set of multiplexers for selecting one of the eight carrier waveforms, or an off signal, to transmit to each of the first set of main amplifiers and the second set of auxiliary amplifiers based on both the in phase (I) digital baseband signal and the quadrature (Q) digital baseband signal. | 2012-02-23 |
20120045021 | TRANSMISSION METHOD AND APPARATUS FOR MULTI-ANTENNA RETRANSMISSION - A transmission method for multi-antenna retransmission is provided, comprising steps of: generating the bits to be transmitted by respective antennas; mapping the bits to be transmitted by the respective antennas into symbols; and multiplying by a constant the vector constituted by the mapped symbols transmitted by multiple antennas, wherein the resulting vector is orthogonal to the matrix constituted by the symbols previously transmitted by multiple antennas, and transmitting the orthogonal symbols. According to the method of the present invention, the remapped symbols transmitted by the respective antennas and the symbols previously transmitted by the respective antennas constitute a matrix that has an orthogonal property. The orthogonal property can be used to effectively detect signals. In addition, the method has a reception algorithm with low complexity and brings about significant performance gains over conventional methods. | 2012-02-23 |
20120045022 | METHOD AND CIRCUIT FOR AMPLITUDE MODULATION OF A CARRIER SIGNAL WITH A SPECIFIED MODULATION FACTOR - An amplitude of a carrier signal at an output of an impedance matching block is measured as a first amplitude value. A value of the signal amplitude at the output of the impedance matching block is calculated as a second amplitude value that a signal resulting from amplitude modulation with said modulation factor from said carrier signal should assume, said carrying signal having an amplitude with the first amplitude value. A setting of a transmitter is changed to decrease the carrier signal amplitude at the output of the impedance matching block. An amplitude of a new carrier signal at the output of the impedance matching block is measured as a new amplitude value. The transmitter setting keeps changing so many times until the new amplitude value is equal to or lower than said second amplitude value or within a predetermined tolerance range around said second amplitude value. Parameters of the last new transmitter setting are stored as the parameters of the transmitter setting, by means of which the transmitter will generate a transmitted signal being amplitude-modulated in the specified manner. The setting of the amplitude modulation with the specified modulation factor is carried out automatically. The designing of the transmitter circuit is simplified. | 2012-02-23 |
20120045023 | LOW RATE, DIRECT CONVERSION FSK RADIO-FREQUENCY SIGNAL RECEIVER - The receiver ( | 2012-02-23 |
20120045024 | METHODS AND APPARATUS FOR ITERATIVE DECODING IN MULTIPLE-INPUT-MULTIPLE-OUTPUT (MIMO) COMMUNICATION SYSTEMS - Methods and apparatus for receiving, processing, and decoding MIMO transmissions in communications systems are described. A non-Gaussian approximation method for simplifying processing complexity where summations are used is described. Use of a priori information to facilitate determination of log likelihood ratios (LLRs) in receivers using iterative decoders is further described. A Gaussian or non-Gaussian approximation method using a priori information may be used to determine a K-best list of values for summation to generate an LLR is also described. | 2012-02-23 |
20120045025 | DIVERSITY RECEPTION DEVICE AND DIVERSITY RECEPTION METHOD - A diversity reception device includes branches, a controller and a combining section. Each branch includes a correlation section that generates a correlation signal that represents a correlation between a received signal and a delayed signal or between the received signal and a reference signal, where the correlation signal level disregarding the received signal level, a time position detector that detects time positions at which the level of the correlation signal is at a peak, a demodulation section that demodulates the received signal, and a multiplication section that multiplies the demodulated signal with a weighting factor. The controller controls the weighting factor on the basis of the respective levels of the correlation signals at the detected time positions. The combining section combines, by adding, the respective demodulated signals of the branches subsequent to the demodulated signal of each branch being multiplied with the weighting factor. | 2012-02-23 |
20120045026 | RECOVERING DISTORTED DIGITAL DATA - In one aspect, a method to recover digital data includes receiving a distorted digital data stream and processing the distorted digital data stream to remove distortions. The processing includes detecting state changes, removing noise and identifying valid pulses. The processing also includes forming an undistorted data stream based on the processing. | 2012-02-23 |
20120045027 | NOISE REDUCTION IN WIRELESS COMMUNICATION APPLICATIONS - A noise reduction system in a wireless communication network, including: two or more input antennas adapted to receive wireless signals; wherein each input antenna has a different receiving characteristic, so that the signals provided by the input antennas constitute a distinct combination of the received signals; a filter coupled to each of the input antennas except one, wherein the filter is adapted to estimate the correlation between the signal provided by its associated input antenna and the signal provided by the input antenna not coupled to a filter and mitigate a dominant component of the received signals responsive to the estimation; a summator that is adapted to combine the filtered signal and the signal provided by the input antenna not coupled to a filter and provide the result as feedback to the filter; and wherein the filtered signals from all the filters are combined to form an output signal. | 2012-02-23 |
20120045028 | FEED-FORWARD CARRIER RECOVERY SYSTEM AND METHOD - A method of feedforward phase recovery on a data stream is described. Phase estimation base points are calculated, at a phase detector, for each block of the received data stream. A current phase, at a phase interpolator, between two phase estimation base points. Data stream delays within the phase detector are matched with delays within the phase interpolator. | 2012-02-23 |
20120045029 | RELATIVE TIME MEASUREMENT SYSTEM WITH NANOSECOND LEVEL ACCURACY - A system for instantaneous and continuous nanosecond-level accuracy determination of a relative time offset between at least two non-collocated timing units, the system comprising at least two non-collocated timing units located at known positions, each timing unit comprising a frequency source and a collocated receiver, each frequency source being disciplined at a frequency domain using a time source to generate corrections of the relative frequency drift between the frequency source and the time source. | 2012-02-23 |
20120045030 | METHOD FOR FORMING ROUGHNESS ON SURFACE OF NUCLEAR FUEL ROD CLADDING INCLUDING ZIRCONIUM - A method for forming roughness on an outer surface of cladding of a fuel nuclear rod including zirconium includes: positioning the cladding of the nuclear fuel rod at a first electrode and connecting a positive electrode thereto, and positioning a conductive plate at a second electrode and connecting a negative electrode thereto; putting the cladding of the nuclear fuel rod in an electrolyte solution; and applying voltage to the positive electrode and the negative electrode to cause oxidation on the outer surface of the cladding of the nuclear fuel rod. In this case, the electrolyte solution is maintained at 10° C. or lower. | 2012-02-23 |