01st week of 2010 patent applcation highlights part 28 |
Patent application number | Title | Published |
20100002704 | System and Method for End-User Custom Parsing Definitions - Systems and methods for performing customizable analysis of a communication session between two entities includes loading predetermined first parser definitions, stored as at least one binary file, receiving second parser definitions in a form other than a binary file form, after the first parser definitions are already operating, loading and compiling the second parser definitions, and applying the first and second parser definitions to a communication session, wherein the first parser definitions identify standard components of the communication session and the second parser definitions are customizable and identify non-standard components of the communication session. | 2010-01-07 |
20100002705 | RELAY APPARATUS, CONDUCTION CONFIRMATION METHOD THEREOF AND CONDUCTION CONFIRMATION CIRCUIT - The relay apparatus relays frames in which a plurality of network identifiers are set and comprises a frame determining unit, a converting unit, and a sending unit. The frame determining unit determines whether a frame received at a communication port is a specific frame or not. The converting unit converts, when it is determined that the received frame is a specific frame and when the communication port is a blocking port, a network identifier set in the specific frame to another network identifier among the plurality of network identifiers. The sending unit sends the specific frame, the network identifier of which has been converted by the conversion unit, from a port opposing the communication port. | 2010-01-07 |
20100002706 | COMMUNICATION SYSTEM AND APPARATUS - A system that allows information of MPLS layers to be reported to PW layers by providing a function having a correlation between MPLS layers and PW layers. A transmission system uses MPLS (Multi-Protocol Label Switching) tunneling and label technology to map a communication service to MPLS, thereby providing bidirectional services on an end-to-end basis. The transmission system is a communication system comprising a means to perform label assignment control for bidirectional services; a means to transmit, after completion of assignment control, a message in which the LDP message used in assignment control is a payload and a tunnel-directed label (L | 2010-01-07 |
20100002707 | DYNAMIC UPDATE OF ROUTE TABLE - A method and apparatus for dynamically modifying routing information in an interconnect architecture without quiescence is herein described. Each agent/node holds routing information regarding target agents/nodes in an interconnect architecture, which may include routing preferences. When a node is to be hot removed, it generates port disable messages to neighbors. The neighbors disable a port the disable message is received on and generates a completion message back to the not to be removed. The node to be removed continues to route messages until it receives a completion; at which time it disables a corresponding node. When all nodes are disabled the device may be removed. Other nodes in the interconnect architecture learn of an agent removal through use of return cycles when messages reach dead ends during attempted routing of cycles. Furthermore, hot addition of a node includes broadcasting of an enable message to enable nodes for routing to the added node. | 2010-01-07 |
20100002708 | SUBSTITUTION CALL CONTROL SYSTEM IN A COMMUNICATION NETWORK - A substitution call control system includes an ATM (Asynchronous Transfer Mode) subscriber network of an ATM communication network. The ATM subscriber network includes a plurality of network terminators respectively connected with a plurality of subscriber terminals, and an ATM subscriber line concentrator, which accommodates VCs (Virtual Connection) to the plurality of network terminators, and is connected with a ATM switching apparatus of the ATM network through a UNI (User-Network Interface). The ATM subscriber line concentrator includes a substitution call control function to substitute for the plurality of network terminators and the subscriber terminals for a call control. | 2010-01-07 |
20100002709 | Systems and Methods for Network Routing Using Virtual Network Node Locations - Systems and methods for routing packets using node virtual locations are disclosed. Such a virtual location may be determined, for example, by determining a geographic location that is central to other nodes with which the node can communicate. In certain embodiments, a node's virtual location may more accurately represent an approximate center point of a node's communication range. In one exemplary embodiment, a node's virtual location is an average of the geographic locations of radio nodes with which the node is in communication. | 2010-01-07 |
20100002710 | Vehicle-Mounted lan system, electronic control unit, relay connection unit, and vehicle-mounted lan communication means - A vehicle-mounted LAN system comprises a plurality of vehicle-mounted LANs in each of which an electronic control unit is connected to a communication line to perform the transmission/reception of messages; and a relay connection unit that relays the messages between the vehicle-mounted LANs. Each electronic control unit has a reception port having a function of transmitting a reception confirmation signal to the relay connection unit in response to a received message. The relay connection unit has a relay management means that determines, based on the presence or absence of the reception confirmation signal responsive to the message relayed to each of the vehicle-mounted LANs, whether a relay is required or not and that then updates relay processing information stored in a storing means. | 2010-01-07 |
20100002711 | COMMUNICATION SYSTEM, NETWORK APPARATUS, COMMUNICATION RECOVERY METHOD FOR USE THEREIN, AND PROGRAM THEREOF - The network apparatus (switch | 2010-01-07 |
20100002712 | PATH CONTROL METHOD ADAPTED TO AUTONOMOUS SYSTEM ROUTING PROTOCOL FOR COMMUNICATION NETWORK - A path control method includes a procedure for developing a path control message including regional information in transmission on the network. The regional information designates a path and/or a path length for transmitting the path control message. The path control message includes a regional property for instructing each node as to how to process the regional information either in a strict manner or in a flexible manner. With reference to the regional information and/or the regional property, each node is capable of selecting a destination node to which the path control message is to be transmitted, stopping the further transmission of the path control message, or discarding the path control message. | 2010-01-07 |
20100002713 | PACKET ROUTING APPARATUS - A packet routing apparatus has a plurality of routing units, connected by a first connecting mechanism. The plurality of routing units comprise a first routing unit, connected to at least one port, and a second routing unit, connected to an extended function processor. The first routing unit transmits a packet, received from the port, to another first routing unit and/or a second routing unit. The second routing unit transmits the packet, received from the first connecting mechanism, to the extended function processor. | 2010-01-07 |
20100002714 | PCI express network - Low communication latency, low cost and high scalability can be achieved by allowing PCI or PCI-X or PCI Express for connectivity between computers or embedded systems and network switches and for connectivity between network switches. These technologies can also be used for interconnecting storage area network switches, computers and mass-memory controllers. PCI Express root bridges in computers or embedded systems can be connected directly to network switch ports. | 2010-01-07 |
20100002715 | THERMALLY FLEXIBLE AND PERFORMANCE SCALABLE PACKET PROCESSING CIRCUIT CARD - Embodiments of the invention provide a packet processing circuit card with scalable performance at specified operational bandwidths over a given range of bandwidths. Advantageously, these embodiments enable a packet processing circuit card developed for a high bandwidth application to be used in a lower bandwidth application. This allows for cost-effective scaling of packet processing performance to the needs of the data communications system. | 2010-01-07 |
20100002716 | SWITCHING METHOD - A switching device comprising a plurality of ingress ports and a plurality of egress ports. The switching device is arranged to receive data packets through said ingress ports and to forward received data packets to respective ones of said egress ports. The switching device further comprises an ingress module for each of said ingress ports, each ingress module being arranged to receive data packets from a respective single one of said ingress ports and to store the received data packets in one of a plurality of data structures provided by the ingress module, each ingress module being further configured to select a data packet from one of said plurality of data structures, and to request permission to transmit the selected data packet to an egress port. The switching device also comprises at least one egress module arranged to receive a plurality of requests for permission to transmit data packets through a particular egress port, the request being generated by the plurality of ingress modules, and to select one of said plurality of requests. | 2010-01-07 |
20100002717 | Partitioned Medium Access Control Implementation - A novel implementation of a partitioned Medium Access Control (MAC) is disclosed. The illustrative embodiment employs a shared bus that typically is already present in a wireless terminal for communication between an Upper MAC and a Lower MAC. The partitioned MAC implementation therefore does not require any additional communication means between the Upper MAC and Lower MAC, resulting in a lower-cost system. In addition, the Upper MAC and Lower MAC pass native data structures by reference over the shared bus, thereby eliminating the need for drivers to coordinate communication via interrupts, handshaking, etc. The partitioned MAC implementation results in a cost-effective distributed architecture in which the Upper MAC resides in the terminal's host processor and the Lower MAC resides in the terminal's wireless station. | 2010-01-07 |
20100002718 | Content Downloading Over TDM With Download Pausing - A telecommunications device and method for downloading content using Time Division Multiplexing (TDM) includes receiving a request for content to be downloaded using TDM. The content may be communicated in response to receiving the content request. In response to receiving a call request for use of a telephone line, a download status of the telephone line may be determined. If the download status of the telephone line is indicative of content being downloaded, the content may be suspended from being communicated to enable a call associated with the call request to be connected with the telephone line. Otherwise, if the download status of the telephone line is not indicative of content being downloaded, a call associated with the call request may be connected with the telephone line. | 2010-01-07 |
20100002719 | MAP MESSAGE EXPEDIENCY MONITORING AND AUTOMATIC DELAY ADJUSTMENTS IN M-CMTS - An M-CMTS compatible UEQAM device implements circuitry to identify and analyze MAP message in the data stream sent from the M-CMTS Core with respect to timing information embedded in those messages. The improved UEQAM will then create a specific message as an extension to DEPI to communicate that information to the M-CMTS Core. The M-CMTS Core will employ that analysis to automatically adjust MAP message advance time to reduce delay and thus improve system performance. This invention will provide a closed-loop between the M-CMTS Core and the UEQAM where valuable transmission information will periodically be fed back from UEQAM-to-M-CMTS Core in real-time. | 2010-01-07 |
20100002720 | Effective idle mode for advanced wireless system - A wireless communication network comprising a plurality of paging controllers capable of communication with a plurality of base stations within a coverage area of the network, wherein at least one of the plurality of paging controllers is capable of, if a mobile station within a paging area requests to enter idle mode, assigning a temporary paging identification to the mobile station, and transmitting the temporary paging identification to a base station in communication with the mobile station, wherein the temporary paging identification is used by the base station to determine an index of a paging opportunity or frame in a paging cycle to transmit a paging message for the mobile station. | 2010-01-07 |
20100002721 | PROTOCOL LINK LAYER - A link is a software abstraction that represents a direct connection between two CoCo nodes. The link layer detects the presence of neighboring devices and establishes links to them. A protocol abstraction layer converts data frames that arrive on network interfaces into packet objects used by the CoCo Protocol Suite. | 2010-01-07 |
20100002722 | AUTOMATIC SIGNALING METHOD AND DEVICE FOR TELECOMMUNICATION SERVICES - A method includes receiving by a first inter network interface (INI) a control message from an entity in a first network, the first INI being located at a border between the first network and networks external to the first network. The first INI translates the control message from a first format used internally in the first network to a second format used to communicate between the first INI and a second INI located at a border between a second network and networks exterior to the second network. The first INI then transmits the translated control message to the second INI. The method can also include translating, by the second INI, the received control message from the second format to a third format used internally in the second network, and forwarding the received and translated control message to an entity in the second network. | 2010-01-07 |
20100002723 | SYSTEM AND METHOD FOR ADJUSTING BANDWIDTH BASED ON A TIME OF DAY PROFILE - A method for expanding a data connection. A first user selection of a first profile is received from a plurality of profiles. The first profile selected by the user is implemented. A determination of a current time is made. Bandwidth available to the user is increased through a data connection in response to determining that the first profile allows for the bandwidth increase at the current time. A second user selection of a second profile is selected from the plurality of profiles. The second profile being implemented to adjust the bandwidth available to the user. | 2010-01-07 |
20100002724 | METHOD AND SYSTEM FOR ADJUSTING BANDWIDTH USING MULTIPLE TIMERS - An approach is provided for auto-bandwidth adjusting bandwidth allocations for traffic-engineered tunnels used to carry traffic along a network. Traffic over the tunnel is sampled at a first interval period and at a second interval period, where the second interval period is shorter than the first interval period. A determination is made as to whether the sampled traffic taken using the second interval period is greater than the bandwidth allocation, and the bandwidth allocation is adjusted upward based upon a determination that the sampled traffic taken using the second interval period is greater than the bandwidth allocation. Also, a determination can be made as to whether the sampled traffic taken using the first interval period is less than the bandwidth allocation, and the bandwidth allocation can be adjusted downward based upon a determination that the sampled traffic taken using the first interval period is less than the bandwidth allocation. | 2010-01-07 |
20100002725 | SYSTEM AND METHOD FOR USING RESOURCES IN A COMMUNICATION SYSTEM - In a method for using resources in a communication system, a communication region is divided into inter-sector boundary regions, sector central regions, and a sector common region, and predetermined resources are allocated to the divided regions. | 2010-01-07 |
20100002726 | DATA TRANSFER APPARATUS, DATA TRANSFER METHOD AND COMPUTER-READABLE STORAGE MEDIUM STORING A DATA TRANSFER PROGRAM - A data transfer apparatus includes a data accumulation unit to accumulate data to be transferred, an encoding matrix storage unit to store an encoding matrix for encoding data of each of a plurality of data sizes, an encoding size determination unit to determine a block of data to be transmitted in descending order of data size based on the data sizes of the data accumulated in the encoding matrix storage unit, an encoding unit to acquire an encoding matrix corresponding to the data size of the determined block form the encoding size determination unit and encode data accumulated in the data accumulation unit for each block using the acquired encoding matrix, a packet generation unit to generate a packet by adding encoding information about the encoding matrix used for encoding the encoded data, and a transmission unit to transmit the generated packet. | 2010-01-07 |
20100002727 | Inverse Multiplex Protocol - The invention relates to inverse multiplexing within telecommunication, and in particular to a versatile inverse multiplex protocol comprising associated state machines and a method for using this protocol allowing a high speed link to be distributed via an inverse multiplexer into a number of lower speed connections in pursuance to G.704 recommendations and using Sa bits. | 2010-01-07 |
20100002728 | METHOD AND APPARATUS FOR PROCESSING SHARED SUBPACKETS IN A COMMUNICATION SYSTEM - Method and Apparatus for Processing Shared Sub-packets in a Communication System are disclosed. A communication system providing both voice and data services allows for a plurality of subscriber station to share a data sent in a unit of a forward traffic channel. To provide information required by the subscriber stations to determine that a unit of the forward traffic channel is shared, and to correctly decode the data, different control channel structures are described. Additionally, the control channel structures provides for more efficient signaling of code channel assignment. | 2010-01-07 |
20100002729 | SYNCHRONIZATION DEVICES AND METHODS - An exemplary embodiment of a synchronization device is provided. The synchronization device includes a memory, a demultiplexer, a comparator, and a sampling rate converter. The synchronization device has a system time clock (STC) and generates an output data with a first sampling rate. The demultiplexer receives a bit stream and extracts a packetized elementary stream (PES) from the bit stream. The demultiplexer writes the PES into the memory. The comparator obtains a presentation time stamp (PTS) from the PES and compares the PTS and the STC. The sampling rate converter has a converting factor, samples the PES in the memory, and generates the output data according to the PES. The sampling rate converter changes the converting factor according to the compared result of the comparator. | 2010-01-07 |
20100002730 | FIBER LASER SYSTEM - A powerful fiber laser system is configured with at least one large-area multi-clad rare-earth doped fiber, which is configured with a MM core capable of propagating a single mode laser emission at a first wavelength, and with at least one pumping assembly capable of generating an optical pump output at a wavelength shorter than the first wavelength of the rare-earth doped fiber. The pumping assembly has a plurality SM fiber lasers coupled to a SM-MM combiner which is operative to lunch the pump output into the cladding of the rare-earth doped fiber so that the powerful fiber laser system is operative to deliver a power of up to 20 kW. | 2010-01-07 |
20100002731 | LASER LIGHT SOURCE DEVICE AND LASER IRRADIATION APPARATUS USING THE SAME - A laser light source device includes a pump light source which emits transverse-multimode light; a plurality of resonator mirrors which define a resonator, at least part of the resonator mirrors outputting light to the outside, where the output light having plural wavelengths; a laser medium arranged in the resonator, the laser medium being pumped with the transverse-multimode light emitted from the pump light source; and a wavelength conversion element arranged in the resonator, the wavelength conversion element being irradiated with a transverse-multimode line beam of fundamental wave obtained by oscillation at the laser medium and outputting a line beam of converted wave. | 2010-01-07 |
20100002732 | Pumped Laser System Using Feedback to Pump Means - A laser system according to the invention comprises pump generating means (x | 2010-01-07 |
20100002733 | Q-SWITCHED ALL-FIBER LASER - A Q-switched all-fiber laser utilizes a long period fibre grating (LPFG) modulator. The LPFG modulator is characterized by optical spectral characteristics that are controlled by application of stress via an actuator. In particular, the actuator applies stress to selected sections of the LPFG in order to modulate a light signal at a specified wavelength. Further, a controller is utilized to control the application of stress in the time domain, and thereby switch the Q-factor of the fiber laser cavity. In addition to the LPFG, the laser cavity comprises a pair of fiber Bragg gratings (FBGs) and a fiber gain medium. | 2010-01-07 |
20100002734 | CONTINUOUS WAVELENGTH TUNABLE LASER SOURCE WITH OPTIMUM POSITIONING OF PIVOT AXIS FOR GRATING - A laser source ( | 2010-01-07 |
20100002735 | LASER SOURCE DEVICE, WAVELENGTH CONVERSION ELEMENT, METHOD OF MANUFACTURING WAVELENGTH CONVERSION ELEMENT, PROJECTOR, AND MONITORING DEVICE - A laser source device includes: a light emission unit which emits laser beam having first wavelength; a first mirror which selectively reflects S-polarized light contained in the first wavelength laser beam emitted from the light emission unit in a direction different from the direction toward the light emission unit and transmits second wavelength laser beam; a second mirror which receives laser beam reflected by the first mirror and reflects laser beam having first wavelength and contained in the received laser beam toward the first mirror; and a wavelength conversion element disposed between the first mirror and the second mirror and converts at least a part of S-polarized light contained in the received first wavelength laser beam into laser beam having second wavelength. | 2010-01-07 |
20100002736 | Wavelength normalization in phase section of semiconductor lasers - Particular embodiments of the present invention relate generally to semiconductor lasers and laser projections systems and, more particularly, to schemes for controlling semiconductor lasers. According to one embodiment of the present invention, a laser having a gain section, a phase section and a wavelength selective section is configured for optical emission of encoded data. The optical emission is shifted across a plurality of laser cavity modes by applying a quasi-periodic phase shifting signal I/V | 2010-01-07 |
20100002737 | Electronically controlled optical scanning - A device for generating light pulses that are separated in terms of time has a light source that emits a sequence of light pulses. A regulation signal is formed within a regulation circuit from a cycle signal and the light pulse sequence of the light sources via a phase detector. The regulation circuit includes a regulator that generates a setting signal that influences the repeat frequency of the light pulse sequence of the light source. | 2010-01-07 |
20100002738 | Nitride-based semiconductor light-emitting device - It is intended to improve operation characteristics of a nitride-based semiconductor light-emitting device including a nitride-based semiconductor crystal substrate having a main surface of a non-polarity plane. | 2010-01-07 |
20100002739 | LENS COUPLED QUANTUM CASCADE LASER - Terahertz quantum cascade (QC) devices are disclosed that can operate, e.g., in a range of about 1 THz to about 10 THz. In some embodiments, QC lasers are disclosed in which an optical element (e.g., a lens) is coupled to an output facet of the laser's active region to enhance coupling of the lasing radiation from the active region to an external environment. In other embodiments, terahertz amplifier and tunable terahertz QC lasers are disclosed. | 2010-01-07 |
20100002740 | Articulated glaze cladding for laser components and method of encapsulation - A glaze encapsulated solid-state laser component. The novel laser component includes a core and a cladding of ceramic glaze disposed on a surface of the core. In an illustrative embodiment, the core is fabricated from a laser gain medium and the cladding material is a multi-oxide eutectic ceramic glaze having a refractivity slighter lower than the refractivity of the gain medium, such that the glaze layer forms a step-index refractivity interface cladding that can effectively suppress parasitic oscillations in the core gain medium. The glaze cladding can be applied by coating the core with the glaze and then firing the glaze coated core, or by fabricating pre-formed cladding strips from the ceramic glaze in a first firing cycle, mounting the pre-formed strips to the core, and then fusing the pre-formed strips to the core in a secondary firing cycle. | 2010-01-07 |
20100002741 | VERTICAL SURFACE LIGHT EMITTING DEVICE WITH MULTIPLE ACTIVE LAYERS - A vertical cavity surface light emitting device (VCSLED) with multiple active layers includes at least one optical resonance unit comprising a highly-doped conduction region ( | 2010-01-07 |
20100002742 | Rotary Disk Module - There is provided a rotary disk module to efficiently transfer heat from a rotatable disk to a stationary heat sink. The rotatable disk is in proximity of the heat sink with a small gap that allows the disk to move, and which is filled with a cooling medium. The cooling medium aids in transfer of heat from the rotatable disk to the heat sink by conduction, convection, evaporation and other heat transfer means. The heat may be deposited on a portion of the rotatable disk on which an optical beam is being incident or from which an optical beam is generated or both. The rotary disk may be fabricated from various materials depending on the intended applications of the module, and the heat sink is preferably fabricated from materials with high thermal conductivity. The disk may be mounted on a disk-mounting surface that provides for a gap between the rotatable disk and the heat sink surface. The disk-mounting surface is in turn connected to a mechanism for rotating the disk in a smooth fashion. There are provided mechanisms to adjust the gap thickness and the gap uniformity. | 2010-01-07 |
20100002743 | LASER FOCUSING THROUGH TURBULENT MEDIUM - Methods and systems for performing target-in-the-loop, real-time laser beam phase aberration compensation through a turbulent atmosphere are disclosed. The methods and systems can distinguish between phase aberration contributions from atmospheric turbulence-induced phase aberration and target-induced phase aberration caused by target surface roughness. Selected components of incoming light can be used to define a reversed wavefront and a reverse direction of propagation such that a laser beam returned to a target tends to be concentrated upon a desired region of a target. In this manner, applications such as laser target designation, tracking, pointing, active imaging, and directed energy systems are better facilitated. | 2010-01-07 |
20100002744 | Method And System For Calibrating A Motor Control Circuit To Improve Temperature Measurement In An Electrical Motor - A method enables measurement of an inverter loss within a motor control circuit for an appliance. The method includes applying a constant DC current generated from a first AC supply voltage to a motor winding through an inverter at a first duty cycle, measuring a first voltage corresponding to the current through the motor at a motor current sense resistor, computing a first ratio of the first measured voltage at the motor current sense resistor to a first DC input voltage corresponding to the first AC supply voltage, identifying a second duty cycle from the first computed ratio, comparing the second duty cycle to the first duty cycle, and identifying a first inverter loss factor from the difference between the first duty cycle and the second duty cycle. | 2010-01-07 |
20100002745 | SENSOR PLUG FOR COMBINED PRESSURE AND TEMPERATURE MEASUREMENT - A sensor plug for pressure and temperature measurement of a fluid medium includes a sensor body having a sensor body axis, as well as a pressure sensor disposed substantially concentrically on the sensor body axis. Also provided in the sensor body is a through orifice for connecting the pressure sensor to the fluid medium, and a temperature sensing element orifice having a temperature sensing element received therein. The temperature sensing element orifice has a temperature sensing element orifice axis that is inclined with respect to the sensor body axis in such a way that at its end pointing toward the fluid medium, it is inclined toward the sensor body axis. | 2010-01-07 |
20100002746 | THERMOMETER - The present invention relates to a thermometer for measuring the temperature in foods, preferably meat dishes which thermometer ( | 2010-01-07 |
20100002747 | SYSTEM AND METHOD FOR N'TH ORDER DIGITAL PIECE-WISE LINEAR COMPENSATION OF THE VARIATIONS WITH TEMPERATURE OF THE NON-LINEARITIES FOR HIGH ACCURACY DIGITAL TEMPERATURE SENSORS IN AN EXTENDED TEMPERATURE RANGE - A system and method is provided for a high accuracy digital temperature sensor (DTS). The system includes a differential analog temperature sensor based on bipolar junctions, providing an output signal obtained as the difference between the V | 2010-01-07 |
20100002748 | CMOS TEMPERATURE-TO-DIGITAL CONVERTER WITH DIGITAL CORRECTION - Methods and systems for producing a digital temperature reading are provided. In an embodiment, one or more current sources and one or more switches are used to selectively provide a first amount of current (I | 2010-01-07 |
20100002749 | METHOD OF CODING AND DECODING A PULSE SIGNAL, IN PARTICULAR AN UWB-IR SIGNAL, AND CORRESPONDING DEVICES - A method is for decoding a pulse signal modulated through a transmitted reference modulation scheme. The modulated pulse signal may include, repetitively, a reference pulse followed by an information pulse delayed with a delay. The method may include subtracting or adding from the modulated pulse signal, a version of the modulated pulse signal delayed with the delay for obtaining a processed signal, and performing a non-coherent detection on the processed signal. | 2010-01-07 |
20100002750 | Systems and Methods for Securing a Digital Communications Link - The frequency of a digital data signal, such as a digital video signal, is intentionally varied or hopped before being sent over a network. This frequency hopping may be performed in accordance with a frequency hopping pattern shared with only intended receivers. The digital data signal may be further intentionally pre-distorted in accordance with a pre-distortion pattern which is also shared with only intended receivers. The frequency hopping and/or the pre-distortion patterns may be used to vary the frequency and modulation, respectively, on a periodic basis, such as a symbol-by-symbol or packet-by-packet basis. | 2010-01-07 |
20100002751 | MULTI-DIMENSIONAL SIGNAL OF REDUCED PEAK-TO-RMS RATIO - A transmitter and a method are described herein that can generate a radio signal with a reduced ratio of peak amplitude to root-mean-square amplitude which helps to improve the transmit efficiency of the transmitter's power amplifier. In addition, a receiver is also described herein that can decode the radio signal. | 2010-01-07 |
20100002752 | EFFICIENT MULTIPATH CENTROID TRACKING CIRCUIT FOR A CODE DIVISION MULTIPLE ACCESS (CDMA) SYSTEM - A method implemented in a communication device for tracking a spread spectrum signal having an associated code at a receiver is claimed. Components of the spread spectrum signal are despread using locally generated versions of the associated code, each component having a different code phase. A tracking error is determined based on a quadratic function of the components and a weighting factor relating the signal to the tracking error. The weighting factor is a function of a time shift. A minimum in the tracking error is determined by adjusting the time shift. | 2010-01-07 |
20100002753 | METHOD FOR TRANSMITTING DATA OF A DATA STREAM VIA A COMMUNICATION MEDIUM IN A COMMUNICATION SYSTEM, AS WELL AS SUBSCRIBERS OF A COMMUNICATION SYSTEM, AND A COMMUNICATION SYSTEM FOR IMPLEMENTING THE METHOD - In a subscriber of a communication system for transmitting data of a data stream in time slots of recurring communication cycles, the communication system includes a communication medium, the subscriber, and at least one additional subscriber. The subscribers are connected to the communication medium for data transmission purposes. To allow better utilization of the available frequency range for data transmission, the subscribers have device(s) for spectral spreading of the data of the data stream before transmission via a certain code sequence and have device(s) for transmitting the spread data in the time slots of the recurring communication cycles. The communication system is preferably designed as a FlexRay communication system, the spread data being transmittable in chronological synchronization in a time slot of the communication cycle by various subscribers of the system. The communication medium is preferably designed as a powerline structure via which the subscribers are supplied with electrical power. | 2010-01-07 |
20100002754 | TRANSMITTING SPREAD SIGNAL IN COMMUNICATION SYSTEM - The present invention provides for transmitting a spread signal in a mobile communication system. The present invention includes spreading a signal using a plurality of spreading codes, wherein the plurality of spreading codes have a spreading factor, multiplexing the spread signal by code division multiplexing, transmitting the multiplexed signal via a plurality of neighboring frequency resources of one OFDM symbol of a first antenna set, and transmitting the same multiplexed signal via a plurality of neighboring frequency resources of one OFDM symbol of a second antenna set. | 2010-01-07 |
20100002755 | Method and apparatus for a multi-tone modem - A multi-tone modem with shared and discrete components forming a transmit path and a receive path configured to couple to a wired communication medium to communicate at least one multi-tone modulated communication channel thereon. The modem includes a multi-tone modulator component and a configurable frequency up converter component. The multi-tone modulator component is configured for multi-tone modulation and demodulation of a transmitted and received communication channel at a base band frequency range. The configurable frequency up converter component is coupled to the multi-tone modulator to selectably up convert the frequency range of the transmitted base band signal from the multi-tone modulator to that of a selected communication band and down convert received signals from the selected communication band to the base band for demodulation by the multi-tone modulator. | 2010-01-07 |
20100002756 | METHOD FOR DECODING A COMPOSITE RADIO SIGNAL AND CORRESPONDING RECEIVER - The present invention relates to a method for decoding a composite radio signal at a receiver in an OFDM based radio communication system, said composite radio signal being a superposition of at least two signals sent by at least one transmitter, each signal having signal properties, in particular modulation scheme, coding scheme, said at least two signals being transmitted using the same radio resource on a set of frequency subchannels of said OFDM system. | 2010-01-07 |
20100002757 | SYSTEM AND METHOD FOR IMPROVED FREQUENCY/PHASE ERROR TRACKING IN HIGH-SPEED HIGH-FREQUENCY COMMUNICATION - A single carrier modulation scheme suitable for use in high frequency communication systems is provided that achieves improved residual frequency error and phase noise estimation. At a transmitter, cyclically orthogonal constant amplitude pilot signals are inserted at the beginning (or end) of a plurality of SCBT blocks of a block coded data stream. At a receiver, a phase rotation of the received data stream is determined to remove a residual frequency error or to estimate the phase noise. | 2010-01-07 |
20100002758 | ADJUSTABLE TRANSMITTER POWER FOR HIGH SPEED LINKS WITH CONSTANT BIT ERROR RATE - A method and apparatus for dynamically adjusting power of a transmitter is herein described. A transmitter transmits a pattern to a receiver at a differential voltage. The length of the pattern, in one embodiment, is selected to be a reasonable length training pattern, as not to incur an extremely long training phase. If errors are detected at the receiver in the pattern, the transmitter steps the differential voltage until errors are not detected in the pattern at the receiver. The differential voltage, where no errors are detected, is scaled by a proportion of a target confidence level to a measured confidence level associated with the reasonable length training pattern. As a result, a training phase is potentially reduced and power is saved while not sacrificing confidence levels in error rates in the data exchange between the transmitter and receiver. | 2010-01-07 |
20100002759 | LOW BIAS ESTIMATION OF SMALL SIGNAL-TO-NOISE RATIO - A method implemented by a user equipment includes selecting a first estimate of a signal-to-noise (SNR) ratio, calculating a first amplitude and first noise variance, calculating a second amplitude and a second noise variance, calculating a second SNR, calculating a resolution value, adjusting the first SNR, and performing estimation iterations until the resolution value is equal to a predetermined value. | 2010-01-07 |
20100002760 | 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. | 2010-01-07 |
20100002761 | Method for using a network abstract layer unit to signal an instantaneous decoding refresh during a video operation - A memory management technique is defined for memory management for a memory used for storing reference pictures associated with a multiview coded video picture system. Based upon information received with coded picture information of an instantaneous refresh decode picture, a determination is made to delete reference pictures associated with a particular view, where such pictures to be deleted from the memory. | 2010-01-07 |
20100002762 | Method for reference picture management involving multiview video coding - A series of memory management operation commands are described for the memory management of decoded reference pictures that are stored within a memory ( | 2010-01-07 |
20100002763 | APPARATUS AND METHOD FOR DIGITAL ITEM DESCRIPTION AND PROCESS USING SCENE REPRESENTATION LANGUAGE - Provided are an apparatus and method for describing and processing digital items using a scene representation language. The apparatus includes a digital item method engine (DIME) unit for executing components based on component information included in the digital item; and a scene representation unit for expressing scenes of a plural number of media data included in the digital item in a form of defining spatio-temporal relations and allowing the media data to interact with each other. The digital item includes scene representation having representation information of the scene, and calling information for the digital item express unit to execute the scene representation unit in order to represent the scene based on the scene representation information at the scene representation unit. | 2010-01-07 |
20100002764 | Method For Encoding An Extended-Channel Video Data Subset Of A Stereoscopic Video Data Set, And A Stereo Video Encoding Apparatus For Implementing The Same - A method for generating candidate encoding modes for an extended-channel video data subset of a stereo video data set includes the steps of: generating, for each macroblock of each frame of the extended-channel video data subset, a forward time difference image feature parameter set with reference to pixel values of pixels of the macroblock and a corresponding macroblock of a corresponding preceding frame; generating, for each macroblock, a plurality of first output values that respectively correspond to a plurality of predetermined possible block partition sizes with reference to the forward time difference image feature parameter set; and selecting, for each macroblock, a first number of candidate block partition sizes from the possible block partition sizes based on the first output values The candidate encoding modes include combinations of the first number of candidate block partition sizes and at least a part of a plurality of predetermined possible block estimation directions. | 2010-01-07 |
20100002765 | Image encoding apparatus and method - An image encoding apparatus includes a calculation unit for calculating complexity from pixel values of an input image, the complexity representing a code amount generated by prediction encoding each block included in a prediction target region of the input image, and an allocation unit for allocating a code amount to each block based on the calculated complexity of each block and an allowable code amount previously set for the prediction target region. The apparatus further includes a determination unit for determining an encoding parameter corresponding to each block based on the complexity of each block and the code amount allocated to each block, and an encoding unit for encoding each block by using the determined encoding parameter of each block. Finally, the apparatus includes a resetting unit for resetting the allowable code amount for a next prediction target region based on an occupancy amount of a buffer. | 2010-01-07 |
20100002766 | VIDEO ENCODING/ DECODING METHOD AND APPARATUS - A video encoding method comprises selecting one combination, for each block of an input video signal, from a plurality of combinations each including a predictive parameter and at least one reference picture number determined in advance for the reference picture, generating a prediction picture signal in accordance with the reference picture number and predictive parameter of the selected combination, generating a predictive error signal representing an error between the input video signal and the prediction picture signal, and encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination. | 2010-01-07 |
20100002767 | DYNAMIC IMAGE ENCODING DEVICE, DYNAMIC IMAGE DECODING DEVICE, DYNAMIC IMAGE ENCODING METHOD, DYNAMIC IMAGE DECODING METHOD, DYNAMIC IMAGE ENCODING PROGRAM, AND DYNAMIC IMAGE DECODING PROGRAM - A device and method to perform encoding and decoding at a high compression rate even with a video of a mixture of pictures of different bandwidths. In a video encoding device, a predicted signal generator extracts spatial frequency components in a predetermined band from a predetermined extraction reference picture except for a target reference picture used as a picture for prediction of a target picture as an object to be encoded, among reference pictures stored in memory. The predicted signal generator generates a predicted signal for the target picture from the target reference picture and the extracted spatial frequency components. | 2010-01-07 |
20100002768 | VIDEO ENCODING/DECODING METHOD AND APPARATUS - A video encoding method comprises selecting one combination, for each block of an input video signal, from a plurality of combinations each including a predictive parameter and at least one reference picture number determined in advance for the reference picture, generating a prediction picture signal in accordance with the reference picture number and predictive parameter of the selected combination, generating a predictive error signal representing an error between the input video signal and the prediction picture signal, and encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination. | 2010-01-07 |
20100002769 | SYSTEM AND METHOD FOR ENCODING AND DECODING INFORMATION IN DIGITAL SIGNAL CONTENT - Systems and methods for embedding and extracting data in a digital signal content are disclosed. In the various embodiments, a system includes a processing unit configured to receive the digital signal content and the data, and an encoder configured to embed the data into the digital signal content. In other of the various embodiments, a system includes a processing unit configured to receive a digital signal content having embedded data, and a decoder configured to extract the data from the digital signal content. | 2010-01-07 |
20100002770 | VIDEO ENCODING BY FILTER SELECTION - A method and a device are described for selecting between multiple available filters in an encoder to provide a frame having a low error and distortion rate. For each full and sub pixel position, determining whether to use an alternative filter over the default filter during interpolation by estimating the rate distortion gain of using each filter and signaling to the decoder the optimal filter(s) applied to each full and sub-pixel position. In one embodiment, identifying a reference frame and a current frame, interpolating the reference frame using a default filter to create a default interpolated frame, interpolating the reference frame using an alternative filter to create an alternative interpolated frame, determining for each sub-pixel position whether to use the default filter or the alternative filter based on a minimal cost to generate a final reference frame. | 2010-01-07 |
20100002771 | Seamless Wireless Video Transmission For Multimedia Applications - A method of temporal error concealment for generating the image data of the missing macro-blocks in the current frame by using the previous frame and the correct data of the current frame is disclosed. The method includes the steps: first using Optimal Regression Plane to estimate the space motion vectors for each block in the missing macro-blocks; selecting appropriate motion vectors from the estimated space motion vectors and the correct temporal motion vectors in the pervious frame as the candidate motion vectors; dividing the missing macro-block into sub-blocks with optimal size; fine tuning the candidate motion vectors as the predicted motion vectors; and using the predicted motion vectors to generate the predicted image data for the missing macro-block and further concealing the effect of the missing macro-blocks upon the image quality of the current frame. The method reduces the computation time, speeds up the process, and improves the image quality. | 2010-01-07 |
20100002772 | METHOD AND DEVICE FOR RESTORING A VIDEO SEQUENCE - In order to restore a video sequence consisting of a plurality of images each comprising at least one block of pixels: the value of the similarity between a block of pixels to be restored in the current image and a plurality of blocks of a reference image is calculated ( | 2010-01-07 |
20100002773 | Motion-Compensated Temporal Recursive Filter - Motion compensation means for a time recursive filter includes a block motion estimation module ( | 2010-01-07 |
20100002774 | MEMORY DEVICE AND DEVICE AND METHOD FOR DETECTING MOTION VECTOR - This invention relates to a memory device and the like that are preferably applied to a case where motion vector is detected using a block matching. Pixel data of a first frame (a reference frame) is stored in a unit A of memory cell array portion | 2010-01-07 |
20100002775 | Low-Complexity And High-Quality Error Concealment Techniques For Video Sequence Transmissions - A spatial error concealment (SEC) method for concealing a spatial image error of an encoded image frame caused by a damaged macroblock (MB) is provided. The SEC method selects a proper SEC algorithm by adaptively classifying a plurality of correct MBs adjacent to the damaged MB, so as to execute interpolation pixel compensation or matching block copying, thus obtaining image data of the damaged MB. In such a way, the damaged MB is processed to apply the least affection to the entire image frame. The SEC algorithm is selected from bilinear interpolation (BI) method, directional interpolation (DI) method, multi-directional interpolation (MDI) method, and best neighborhood matching (BNM) method. The SEC method further includes a fast determination calculation, which utilizes image directional data related to the damaged MB in coding data of the original frame to execute a direct SEC process, for saving time on determination calculation, thus accelerating the processing speed. | 2010-01-07 |
20100002776 | METHOD AND APPARATUS FOR STORING DECODED MOVING PICTURES WITH A REDUCED MEMORY REQUIREMENT - A method for storing decoded moving pictures with a reduced memory requirement includes: decoding header information in a bitstream; storing a decoded moving picture as a buffered picture; determining a less important portion of the buffered picture; and performing a post-processing operation on the less important portion of the buffered picture according to the header information. An associated apparatus for storing decoded moving pictures with a reduced memory requirement is further provided. | 2010-01-07 |
20100002777 | Systems and methods for construction of time-frequency surfaces and detection of signals - Systems and methods for detecting and/or identifying signals that employ streaming processing to generate time-frequency surfaces by sampling a datastream according to a temporal structure that may be chosen as needed. The sampled datastream may be correlated with a set of templates that span the band of interest in a continuous manner, and used to generate time-frequency surfaces from irregularly sampled data with arbitrary structure that has been sampled with non-constant and non-Nyquist sampling rates where such non-constant rates are needed or desired. | 2010-01-07 |
20100002778 | DATA TRANSFER SYSTEM - data transfer signal lines are provided between transmitting and receiving sides of data on n signal lines in order to reduce power consumption required for a data transfer even if the number of bits of data to be transferred increases. The transmitting side has an encoder for outputting a signal of a low potential to one signal line and a signal of a high potential to the other signal lines among the | 2010-01-07 |
20100002779 | MECHANISM FOR THE MANAGEMENT OF RECEIVERS/DECODERS CONNECTIONS - The present invention relates to a communication device, comprising modulation and demodulation means, connected to a communication network and to at least one receiver/decoder, comprising means of selecting among the following different possibilities, depending on the available bandwidth on the communication network, upon receipt of a request originating from said receiver/decoder: transmit the request unmodified to said network; or modify the request in order to request a feed of lesser quality; or refuse to transmit the request to said network and broadcast to the receiver/decoder a preconfigured multimedia file. The present invention also relates to a communication method. | 2010-01-07 |
20100002780 | SIGNAL COMPONENT DEMULTIPLEXING APPARATUS, FILTER APPARATUS, RECEIVING APPARATUS, COMMUNICATION APPARATUS, AND COMMUNICATION METHOD - A communication apparatus, a signal component demultiplexing apparatus, and a filter apparatus to reduce a load of FFT processing in a receiver in multi-carrier communication. The receiving apparatus provides a signal component demultiplexing apparatus before an FFT circuit and extracts only the required symbol series. The signal component demultiplexing apparatus has hierarchically arranged branching circuits each including a symbol delay circuit, a phase offset adjustment circuit, an adder circuit, and a subtractor circuit, one symbol string being output from the adder circuit and another symbol string being output from the subtractor circuit. | 2010-01-07 |
20100002781 | TRANSMITTER IDENTIFICATION USING A CONTINUOUS WAVE TONE - A methodology for transmitter identification for a single frequency network is provided using a single CW tone. The tone can be transmitted outside the transmitter's active band. It is possible to arrive at significant overlap between the tone coverage area and the coverage area of a neighboring transmitter without disturbing the operations by picking the tone location and power appropriately. | 2010-01-07 |
20100002782 | RADIO COMMUNICATION SYSTEM AND RADIO COMMUNICATION METHOD - In an OFDM cellular system, a power density of a phase reference signal of a time frame used in an initial synchronization process (time frame including a system information notification signal, or a time frame in the vicinity thereof), in a channel band for initial synchronization, is more increased than that of the other time frame. | 2010-01-07 |
20100002783 | Blind Channel Estimation for PSK and D-PSK Modulated Multicarrier Communication Systems - An apparatus and method is described that provide an efficient blind channel estimation approach for PSK and DPSK modulated multicarrier communication systems. With the requirement that the channel phase difference between any two adjacent carriers is smaller than one half of the minimum phase difference between two symbols of the PSK or DPSK constellation, a low-complexity deterministic approach to channel estimation is devised. This approach is highly effective, robust, and particularly useful for time varying channels with low AWGN noise. | 2010-01-07 |
20100002784 | Method for Reducing Peak-To-Average Power Ratio in an Ofdm Transmission System - The Peak-to-Average Power Ratio in an OFDM transmission system is reduced based on a complementary parity coding in which the coding rules are derived from an appropriate auto-correlation property of transmitted symbol sequences. | 2010-01-07 |
20100002785 | ADAPTIVE THRESHOLDING FOR OFDM CHANNEL ESTIMATION - An adaptive thresholding technique eliminates suboptimum threshold values by adjusting for varying channel conditions to eliminate interference where no channel energy is present, without discarding viable taps having useful channel energy. The adaptive thresholding technique adaptively optimizes receive threshold values for both wide and local area channels based only on measured C/I ratios 300. Thresholds are calculated based on instantaneous C/I estimates and/or weighted average C/I estimates calculated from WID/LID energies obtained from the current superframe WIC/LIC symbols respectively. In alternate embodiments, thresholds are calculated based on instantaneous C/I estimates and/or weighted average C/I estimates calculated from WTPC and LTPC symbols for the wide and local area channels, respectively The present adaptive thresholding technique dynamically reduces the threshold as the C/I estimate increases to mitigate performance degradation due to removal of weak signal taps. There is a separate threshold for each of the 12 coding and modulation modes supported by an exemplary receiver. | 2010-01-07 |
20100002786 | SIGNAL DETECTING METHOD AND RECEIVER USING THE SAME - A signal detecting method and a receiver using the same are provided. The method includes the following steps. A receiving signal vector y is received through a number of channels, wherein the receiving signal vector y corresponds to a transmitting signal vector x transmitted by at least one of the channels. A channel matrix H is determined, wherein the channel matrix H represents at least one of the channels. A factorization matrix D is chosen, wherein D is invertible to make the channel matrix H expressed as H={tilde over (H)}D, and {tilde over (H)} is a corresponding channel matrix. The factorization matrix D is determined to make an expected value of the signal estimate error become smaller. The receiving signal vector y is detected to estimate the transmitting signal vector x according to the corresponding channel matrix {tilde over (H)} and the factorization matrix D. | 2010-01-07 |
20100002787 | WIRELESS COMMUNICATION SYSTEM WITH MULTIPLE TRANSMISSION ANTENNAS USING PILOT SUBCARRIER ALLOCATION - A method for allocating pilot subcarriers in a resource block for a wideband wireless mobile communication system having four (4) transmission antennas using orthogonal frequency division multiplexing (OFDMA) modulation is disclosed. In this method, pilot subcarriers are allocated in the resource block so that a group of consecutive data subcarriers separated from adjacent other group of consecutive data subcarriers by the pilot subcarriers has even number of subcarriers within an OFDMA symbol. | 2010-01-07 |
20100002788 | INTERPOLATING METHOD FOR AN OFDM SYSTEM AND CHANNEL ESTIMATION METHOD AND APPARATUS - The present invention provides an interpolating method for an OFDM system, a channel estimation method and apparatus, in which each OFDM symbol has scattered pilots inserted, and the interpolating method comprising: the step of inserting at least one copy of the first scattered pilot in each OFDM symbol before the first scattered pilot as virtual pilots, and inserting at least one copy of the last scattered pilot in each OFDM symbol behind the last scattered pilot as virtual pilots, after obtaining the channel state information on the sub-channels which propagate the scattered pilots in the OFDM symbols by linear filtering; and the step of performing interpolation by a FIR filter with the channel state information. | 2010-01-07 |
20100002789 | INCREASED CAPACITY COMMUNICATIONS SYSTEMS, METHODS AND/OR DEVICES - Communications architectures, systems, devices and/or methods are disclosed that can increase capacity of conventional OFDM/OFDMA systems, devices, methods and/or protocols by as much as 100%. Conventional OFDM/OFDMA transmitter/receiver architectures, methods, systems and/or devices are improved upon via additional signal processing to provide the increased capacity and reduce non-linear distortion effects on higher-order modulation alphabets such as, for example, 256-QAM. | 2010-01-07 |
20100002790 | Higher Order Multiple Input, Multiple Output Extension - A method of multiple input multiple output downlink communications including mapping complex-valued modulation symbols onto one or more transmission layers by mapping complex-valued modulation symbols onto the layers and preceding the complex-valued modulation block of vectors and generating a block of vectors mapped onto at least four antenna ports. A first embodiment employs a maximum of two layers per codeword. A second embodiment employs no more than two codewords. | 2010-01-07 |
20100002791 | APPARATUS AND METHOD FOR OPERATING VALID BIT IN A WIRELESS COMMUNICATION SYSTEM - An apparatus and method for processing a valid bit operation in a wireless communication system are provided. The method includes analyzing input data and generating valid bit information representing a start position of valid bits, generating operation data comprised of the valid bits and valid bit information by eliminating extra bits from the input data, and, after performing an operation process using the generated operation data, restoring the operation data to data that is the same data as the input data. | 2010-01-07 |
20100002792 | SYSTEM, APPARATUS AND METHOD FOR INTERLEAVING DATA BITS OR SYMBOLS - A data transmission system respectively encodes successive bits representing information to be transmitted. An interleaver receives the bits from the encoder and interleaves the bits. The interleaver includes a memory and a memory read write controller configured to write the bits to the memory in accordance with a diagonal write pattern and to read the bits from the memory in a diagonal read pattern. A symbol mapper receives the interleaved bits and maps the encoded interleaved bits into symbols using a transmission format. | 2010-01-07 |
20100002793 | METHOD AND APPARATUS FOR CODING RELATING TO A FORWARD LOOP - A high data width accelerator, comprising computer instructions for calculating at least a portion of a trace-back during a trellis computation, wherein the calculation allows faster trace-back | 2010-01-07 |
20100002794 | METHOD, MEDIUM AND APPARATUS FOR QUANTIZATION ENCODING AND DE-QUANTIZATION DECODING USING TRELLIS - Provided are a method and apparatus for quantization encoding and de-quantization decoding using a trellis. Unlike a trellis coded quantization (TCQ) index, by classifying quantization levels to which cosets are allocated and allocating indexes to the quantization levels so that a coset corresponding to a specific branch in a predetermined state in the trellis can be selected with only indexes without encoding or decoding information on paths, quantization encoding and de-quantization decoding are performed by using a new index. | 2010-01-07 |
20100002795 | Low Complexity High-Speed Communications Transceiver - A communication system is disclosed that allows high data-rate transmission of data between components. N-bit parallel data is transmitted in K-frequency separated channels on the transmission medium so as to fully take advantage of the overall bandwidth of the transmission medium. As a result, a very high data-rate transmission can be accomplished with low data-bit transmission on individual channels. A transmitter system and a receiver system are described for the communication system. | 2010-01-07 |
20100002796 | Adaptive Transmission Method And System For Wireless Communication System - The present invention provides a wireless transmission method and system based on maximum multi-path delay estimation. A wireless transmission method based on an estimation of maximum multi-paths delay, comprising: a communication apparatus involved in wireless communication estimates the maximum multi-paths delay of a currently received frame; the communication apparatus performs a quantization and coding on feedback information related with the estimated maximum multi-paths delay, and then sends the feedback information which has been subjected to the quantization and coding to an opposing communication apparatus which is in wireless communication with the communication apparatus; the opposing communication apparatus recovers the feedback information by demodulating and decoding the feedback information which has been subjected to the quantization and coding; the opposing communication apparatus performs an adaptive adjustment of wireless signals transmitted to the communication apparatus, based on the recovered feedback information. With this method, system parameters can be adaptively adjusted so as to that sufficiently improves the spectrum utilization efficiency of wireless resources (the throughput is increased by about 5%). | 2010-01-07 |
20100002797 | System and Method for Quantization of Channel State Information - A system and method for quantization of channel state information is provided. A method for operating in a wireless communications system includes estimating a communications channel between a controller and a mobile device, thereby producing a channel estimate, parameterizing the channel estimate with principal angle vectors Θ and Φ, quantizing the principal angle vectors, thereby producing quantized values, and transmitting the quantized values to the controller. | 2010-01-07 |
20100002798 | MAXIMUM RATIO TRANSMISSION - An arrangement where a transmitter has a plurality of transmitting antennas that concurrently transmit the same symbol, and where the signal delivered to each transmitting antenna is weighted by a factor that is related to the channel transmission coefficients found between the transmitting antenna and receiving antennas. In the case of a plurality of transmit antennas and one receive antenna, where the channel coefficient between the receive antenna and a transmit antenna i is h | 2010-01-07 |
20100002799 | CDM signal transmitter with modulators reduced in number and a method therefor - A code division multiplex signal transmitter includes an operational circuit, a modulator unit and a multiplexer. The operational circuit adds up input transmission data on channels to produce resultant added data and modulates pieces of bit transmission data which are indicative of the values of the respective bits of the added data, when expressed in binary form, the pieces of bit transmission data being equal in number to the M bit positions of the added data expressed in binary form. The modulator unit includes modulators corresponding in number to the M bit positions of the added data in the binary form. A k-th modulator, where k is an integer of 1 to M, inclusive, modulates a k-th piece of bit transmission data to produce a k-th bit modulated signal whose amplitude level is 2 | 2010-01-07 |
20100002800 | Method and apparatus of transmitting reference signal for uplink transmission - A method and apparatus of transmitting a reference signal in a wireless communication system is provided. The method includes generating a precoded reference signal or a non-precoded reference signal in accordance with a rank, and transmitting the generated reference signal. Uplink transmission using multiple transmit antennas is supported through reference signal design and related control signaling. | 2010-01-07 |
20100002801 | PRECODING IN HIGH-ORDER MIMO - A high-order Multiple-Input-Multiple-Output (MIMO) transmitter implementing a covariance-based precoding scheme that exploits transmit channel correlation and a method of operation thereof are provided. In one embodiment, covariance-based precoding is performed at the high-order MIMO transmitter based on feedback from a remote high-order MIMO receiver regarding a covariance-based precoding matrix. The covariance-based precoding matrix is, or is derived from, a transmit channel correlation matrix determined by the high-order MIMO receiver for the high-order MIMO transmitter. The covariance-based precoding provides a beam-forming effect when there is a relatively high degree of transmit channel correlation, thereby improving performance of the high-order MIMO transmitter. Further, because changes in the transmit channel correlation occur relatively slowly over time, feedback overhead requirements are substantially reduced as compared to that required for traditional MIMO precoding schemes. | 2010-01-07 |
20100002802 | OFDM TRANSMITTING AND RECEIVING SYSTEMS AND METHODS THEREOF - An orthogonal frequency division multiplexing (OFDM) transmission system is provided which includes a data processing unit which generates a transmission signal using a plurality of tones including a reserved tone, a storage unit which stores Peak Reduction Kernel information according to the type of data symbol, and a compensation unit which retrieves the Peak Reduction Kernel information according to the type of data symbol from the storage unit and causes the retrieved information to be carried by the reserved tone included in the transmission signal. Therefore, a Peak-to-Average Power Ratio (PAPR) can be efficiently compensated. | 2010-01-07 |
20100002803 | COMMUNICATION METHOD AND DEVICE - The present invention relates to the field of communication and transmission of signals. In particular, the present invention relates to a new communication and/or modulation method. The present invention also relates to improving channel occupancy. The present specification discloses the adoption of phase transitions/changes in a manner that indicates a code by virtue of their position (timing) in the communication. This is referred to as Phase Position Modulation. | 2010-01-07 |