Patents for H04L 25 - Baseband systems (55,083)
09/2004
09/22/2004CN1531207A Method for shortening coding-decoding synchronous time delay
09/22/2004CN1531206A Data transceiver
09/22/2004CN1168267C Data transmsision method and data transmission device
09/22/2004CN1168228C 扩频数字微波传输装置 Spread spectrum digital microwave transmission equipment
09/21/2004US6795947 Parity check outer code and runlength constrained outer code usable with parity bits
09/21/2004US6795656 Optical transmission circuit using a semiconductor laser
09/21/2004US6795538 Initialization and monitoring system and method for DLC device
09/21/2004US6795513 Channel estimation sequence and method of estimating a transmission channel which uses such a channel estimation sequence
09/21/2004US6795512 System for carrier phase tracking of coded symbols using reliability metrics for symbol estimates
09/21/2004US6795494 Receiver architecture using mixed analog and digital signal processing and method of operation
09/21/2004US6795493 Circuit for a transceiver output port of a local area networking device
09/21/2004US6795492 Configurable exciter
09/21/2004US6795427 Estimation of transmission channels in communication systems for wireless telecommunication
09/21/2004US6795405 Digital modem echo canceler enhancement
09/21/2004US6795392 Clustered OFDM with channel estimation
09/21/2004US6794921 Clamp circuit
09/21/2004US6794920 Sampled analog DC offset correction for data bus structures
09/21/2004US6794900 Method and circuit for pre-emphasis equalization in high speed data communications
09/21/2004US6794894 Method and system for bidirectional signal transmission
09/16/2004WO2004080087A2 Received signal processing for wireless communications
09/16/2004WO2004080020A2 Methods and apparatus for reducing discrete power spectral density components of signals transmitted in wideband communication systems
09/16/2004WO2004080019A1 A multistage equalizer that corrects for linear and nonlinear distortion in a digitally-modulated signal
09/16/2004WO2004079975A2 Multi user detection using equalization and successive interference cancellation
09/16/2004WO2004079969A2 Channel estimation based on an estimated channel delay spread
09/16/2004WO2004079958A1 Method for receiving multicarrier signal and multicarrier receiver comprising it
09/16/2004WO2004079957A1 Receiver for communication system
09/16/2004WO2004079953A1 Method and arrangement for transmitting signals according to a multiple access method
09/16/2004WO2004079933A2 Bondwire decoupling filter for filtering rf noise from a transceiver bus
09/16/2004WO2004079932A2 Method and apparatus for receiving a cdma signal
09/16/2004WO2004079927A2 Reduced complexity sliding window based equalizer
09/16/2004WO2004079921A2 Method, system and apparatus for acquiring a received impulse radio signal
09/16/2004WO2004068812A3 Transmission line conductor arrangement
09/16/2004WO2004057761A3 Method and device for soft decoding a sequence
09/16/2004WO2004039022A3 Correction for differences between downlink and uplink channel responses
09/16/2004US20040181738 System and method for trellis decoding in a multi-pair transceiver system
09/16/2004US20040181419 Spherical decoder for wireless communications
09/16/2004US20040181350 Auto skew alignment of high-speed differential eye diagrams
09/16/2004US20040180697 Apparatus and method for estimating a velocity of a mobile station in a mobile communication system
09/16/2004US20040180696 Dynamic frame size adjustment and selective reject on a multi-link channel to improve effective throughput and bit error rate
09/16/2004US20040180626 Hard decision-based decorrelator for estimating spatial signatures in a wireless communications system
09/16/2004US20040179638 Data transmitting/receiving device
09/16/2004US20040179630 GMSK modulation techniques
09/16/2004US20040179627 Pilots for MIMO communication systems
09/16/2004US20040179624 Line driver with reduced power consumption
09/16/2004US20040179623 Differential error detector
09/16/2004US20040179589 Determine coefficients of a decision feedback equalizer from a sparse channel estimate
09/16/2004US20040179584 Apparatus for data transmission path detection
09/16/2004US20040179577 UWB pulse sequence generation apparatus and method, and data communication apparatus and method using the UWB pulse sequence
09/16/2004US20040179556 Data transmission method, data transmission apparatus, and data transmission system
09/16/2004US20040179497 Dynamic bandwidth allocation for multiple access communications using buffer urgency factor
09/16/2004US20040179483 Sparse channel equalization
09/16/2004DE10308946A1 Power driver circuit for signal transmission over user line employs digital and analog amplifiers superimposing signals to produce driven signal
09/16/2004DE102004010671A1 Datenübertragungssystem und Insassenschutzvorrichtung Data transmission system and occupant protection device
09/16/2004CA2517912A1 Received signal processing for wireless communications
09/16/2004CA2516981A1 Multi user detection using equalization and successive interference cancellation
09/16/2004CA2516946A1 Reduced complexity sliding window based equalizer
09/15/2004EP1458156A2 Transmission using Tomlinson-Harashima precoding
09/15/2004EP1458155A2 DC suppression by choice of synchronisation word
09/15/2004EP1458143A1 Data repeater and multiplex communication system using the same
09/15/2004EP1458113A2 UWB pulse sequence generation apparatus and method
09/15/2004EP1458104A2 Method an apparatus for compressing and transmitting high speed data
09/15/2004EP1458101A1 A fractional-type phase-locked loop circuit
09/15/2004EP1456991A1 Method and apparatus for pulse overlap pre-compensation in digitally modulated signals
09/15/2004EP1456963A1 Skew delay compensator
09/15/2004EP1456959A1 Joint demodulation using a viterbi equalizer having an adaptive total number of states
09/15/2004EP1456957A1 Hybrid parallel/serial bus interface
09/15/2004EP1197028B1 Integrated modem and line-isolation circuitry and associated method
09/15/2004EP0868802B1 Optical data transmission by pulse position modulation
09/15/2004CN1529970A Poppler spread/velcocity estimation in mobile wireless communication device and methods thereof
09/15/2004CN1529958A Data catching technology for high-speed signals
09/15/2004CN1529438A CDMA spectrum-spreading method, despreading method and receiver
09/15/2004CN1529432A Method and appartus for equalization complementray carriers in an AM compatible digital audio broadcast system
09/15/2004CN1529418A Modulation method and apparatus, demodulation method and apparatus, transmission method and apparatus
09/15/2004CN1529417A Modulation method and apparatus, demodulation method and apparatus, and transmission method and apparatus
09/15/2004CN1529416A Modulation method and apparatus, demodulation method and apparatus, transmssion method and apparatus
09/15/2004CN1167235C Channel presuming system and channel presuming method through detecting component of phase rotation
09/15/2004CN1167233C Method and system for data and timing recovery in bi-phase coded data signal
09/15/2004CN1167202C Data amplitude limiter and radio frequency receiver using it
09/14/2004US6792566 Method and apparatus of pre-loading a seed for a test code of a physical layer device
09/14/2004US6792403 Method and apparatus for compressing and transmitting ultra high speed data
09/14/2004US6792055 Data communications receiver with automatic control of gain or threshold for soft decision decoding
09/14/2004US6792052 Joint least-square synchronization, channel estimation and noise estimation
09/14/2004US6792050 Ask modulation apparatus and method
09/14/2004US6792049 Digital transceiver system with adaptive channel pre-coding in an asymmetrical communications network
09/14/2004US6792041 Data rate detection device and method for a mobile communication system
09/14/2004US6792040 Modems having a dual power mode capability and methods of operating same
09/14/2004US6792036 Method for estimating channel impulse responses of a mobile radio channel
09/14/2004US6792004 Systems, methods and computer program products for averaging learned levels in the presence of robbed-bit signaling based on proximity
09/14/2004US6792003 Method and apparatus for transporting and aligning data across multiple serial data streams
09/14/2004US6791960 Pilot signals for synchronization and/or channel estimation
09/14/2004US6791836 Smart fan modules and system
09/14/2004US6791483 Parallel/serial conversion circuit, serial data generation circuit, synchronization signal generation circuit, clock signal generation circuit, serial data transmission device, serial data reception device, and serial data transmission system
09/14/2004US6791388 Phase interpolator device and method
09/14/2004US6791359 Electronic structure for passing signals across voltage differences
09/14/2004US6791358 Circuit configuration with signal lines for serially transmitting a plurality of bit groups
09/14/2004CA2422208A1 Transition-aware signaling
09/10/2004WO2004077774A1 Wireless data transmission method, and corresponding signal, system, transmitter and receiver
09/10/2004WO2004077696A1 Equalization of multiple signals received for soft handoff in wireless communication systems
09/10/2004WO2004059932A3 Optimization of soft decision device and feedback equalizer
09/10/2004WO2004034667A3 Electromagnetic wave trasmitter systems, methods and articles of manufacture