Patents
Sitemap › H04 - Electric communication technique › H04L - Transmission of digital information, e.g. telegraphic communication › H04L 27 - Modulated-carrier systems
Patents for H04L 27 - Modulated-carrier systems (89,721)
05/2003
05/22/2003WO2003043261A1 Hybrid arq method for data transmission
05/22/2003WO2003043260A1 Hydrid arq method for packet data transmission
05/22/2003WO2003043257A1 Method and system for determining data transfer margins for network connections
05/22/2003WO2003043245A1 Stfbc coding/decoding apparatus and method in an ofdm mobile communication system
05/22/2003WO2003043243A1 Transmission method, transmission apparatus, and reception apparatus
05/22/2003WO2003043242A1 Reception apparatus
05/22/2003WO2003043236A1 Array processing for linear system solutions
05/22/2003WO2003043235A1 Antenna polarization codulation
05/22/2003WO2003043222A1 Communication method and radio communication apparatus
05/22/2003WO2003043208A1 Semiconductor integrated circuit for communication
05/22/2003WO2003043206A2 Emission device with automatic compensation of the quadrature modulator
05/22/2003WO2003043194A2 Frequency acquisition and locking detection circuit for phase lock loop
05/22/2003WO2003043180A1 Multiple analog and digital downconversion
05/22/2003WO2003043179A2 Transmitter with transmitter chain phase adjustment on the basis of pre-stored phase information
05/22/2003WO2003028269A3 An adaptive coding scheme for ofdm wlans with a priori channel state information at the transmitter
05/22/2003WO1999014875A3 An improved threshold extension block phase estimator for quasi-coherent communications systems
05/22/2003US20030097601 System and method for differential data detection
05/22/2003US20030096579 Wireless communication system
05/22/2003US20030096578 Ultra wideband signals for conveying data
05/22/2003US20030095615 Feedforward amplitude cancellation topology for multi-carrier applications
05/22/2003US20030095608 Transmitter with transmitter chain phase adjustment on the basis of pre-stored phase information
05/22/2003US20030095607 System and method for direct transmitter self-calibration
05/22/2003US20030095589 Method and apparatus for estimating and correcting gain and phase imbalance in a code division multiple access system
05/22/2003US20030095576 Method for optimizing phase factor of sub-block signal in partial transmit sequence orthogonal frequency division multiplexing system
05/22/2003US20030095561 Apparatus and method for efficiently transmitting and receiving multicast data
05/22/2003US20030095533 STFBC coding/decoding apparatus and method in an OFDM mobile communication system
05/22/2003US20030095517 Multi-detection of heartbeat to reduce error probability
05/22/2003US20030095508 Rate selection for an OFDM system
05/22/2003US20030095506 Rate selection for an OFDM system
05/22/2003US20030095498 Retransmission control method and apparatus for use in OFDM radio communication system
05/22/2003US20030095012 Modulating array transmitter autocalibration method and system
05/22/2003US20030094976 Mixer circuit, receiver circuit, and frequency comparison circuit
05/22/2003CA2466684A1 Array processing for linear system solutions
05/22/2003CA2466351A1 Multiple analog and digital downconversion
05/21/2003EP1313283A2 Timing synchronization for OFDM-based wireless networks
05/21/2003EP1313282A1 Method and apparatus for OFDM (orthogonal frequency division multiplexing) demodulation
05/21/2003EP1313281A1 Method and system for frequency offset estimation in digital carrier-modulated communication systems
05/21/2003EP1313280A1 Method for correcting phase errors in a received signal and corresponding receiver
05/21/2003EP1313279A1 Method for compensating phase impairments in a signal and corresponding receiver
05/21/2003EP1313278A1 Method and apparatus for adaptive digital predistortion in a radio transmitter
05/21/2003EP1313260A2 Apparatus and method for multicast data
05/21/2003EP1313251A1 Hybrid ARQ method for packet data transmission
05/21/2003EP1313250A1 Hybrid ARQ method for packet data transmission
05/21/2003EP1313249A2 Apparatus and method for symbol combining in a mobile communication system
05/21/2003EP1313248A1 Hybrid ARQ method for packet data transmission
05/21/2003EP1313247A1 Incremental redundancy ARQ retransmission method using bit reordering schemes
05/21/2003EP1313242A1 Orthogonal frequency division multiplexed signal receiving apparatus and orthogonal frequency division multiplexed signal receiving method
05/21/2003EP1238458B1 Circuit arrangement and a method for the offset compensation of a signal
05/21/2003EP0879522B1 Coherent modulation of cpm signals
05/21/2003EP0752172B1 Carrier independent timing recovery system for a vestigial sideband modulated signal
05/21/2003EP0748551B1 Combating signal interference in digital transmission
05/21/2003CN1419770A Method for signaling the start of a logical channel in a jointly used physical transmission channel of a radio communication system
05/21/2003CN1419769A System and method for providing frequency comain synchronization for single carrier signals
05/21/2003CN1419342A Aplitude method for signal transmitted from samd amplifier and having multiple carrier wave
05/21/2003CN1109439C Circuit for the acquisition of a carrier signal by applying a substitute pilot to a synchronous demodulator
05/21/2003CN1109422C SIR measurement apparatus
05/20/2003US6567491 High efficiency line driver for high crest-factor signals such as DMT/ADSL signals
05/20/2003US6567486 Apparatus and method for finding location of a mobile unit
05/20/2003US6567481 Receivers including iterative map detection and related methods
05/20/2003US6567480 Method and apparatus for sampling timing adjustment and frequency offset compensation
05/20/2003US6567479 System and method for extracting and compensating for reference frequency error in a communications system
05/20/2003US6567478 Radio apparatus having distortion compensating function
05/20/2003US6567477 Two-dimensional constellation generation, pruning, and partial gray coding for bandwidth and power efficiency
05/20/2003US6567475 Method and system for the transmission, reception and processing of 4-level and 8-level signaling symbols
05/20/2003US6567474 Digital wireless phone/modem jack capable of communications over the power lines using differential binary phase shift keying (DBPSK)
05/20/2003US6567473 Method for seamlessly changing power modes in a ADSL system
05/20/2003US6567465 DSL modem utilizing low density parity check codes
05/20/2003US6567383 Header structure for TDD systems
05/20/2003US6567374 Data and pilot mapping in an OFDM system
05/20/2003US6567199 Digital optical transmission apparatus and method for performing ASK modulation to generate base band component with constant DC level
05/20/2003US6566941 Method and device of phase detection in phase modulation systems
05/20/2003US6566940 Method and apparatus for frequency shift-keying demodulation and applications thereof
05/15/2003WO2003041367A2 Method and device for xdsl data transmission with an optimised current consumption
05/15/2003WO2003041354A1 Dat-aided frequency offset detection using phase unwrapping
05/15/2003WO2003041353A2 Method ahd device for optimised xdsl data transmission
05/15/2003WO2003041352A2 Bitrate matching for adsl
05/15/2003WO2003041351A2 Frequency tracking using pilot and non-pilot symbols
05/15/2003WO2003041327A2 Apparatus and method for reducing papr in an ofdm mobile communication system
05/15/2003WO2003041284A2 Multiple dataport clock synchronization
05/15/2003WO2003017554A3 Utilizing session initiation protocol for identifying user equipment resource reservation setup protocol capabilities
05/15/2003WO2002058411A3 System and method for on-line insertion of line replaceable units in wireless and wireline access systems
05/15/2003WO2002026981A3 Human protease inhibitor proteins and polynucleotides encoding the same
05/15/2003US20030093703 Multiple dataport clock synchronization
05/15/2003US20030092417 Method and apparatus for matching receiver carrier frequency
05/15/2003US20030092416 Direct-conversion transmitting circuit and integrated transmitting/receiving circuit
05/15/2003US20030092405 Envelope limiting for polar modulators
05/15/2003US20030091128 Digital demodulator, a telecommunications receiver, and a method of digital demodulation
05/15/2003US20030091127 Digital demodulation and applications thereof
05/15/2003US20030091124 Slicer circuit with ping pong scheme for data communication
05/15/2003US20030091123 Method of clipping signal comprising a plurality of carriers transmitted by the same non-linear amplifier
05/15/2003US20030091122 Data transfer using frequency notching of radio-frequency signals
05/15/2003US20030091121 Multi-valued FSK communication method and multi-valued FSK communication apparatus
05/15/2003US20030091120 Communication system and method
05/15/2003US20030091119 Method for coded modulation taking account of the error sensitivity of the user data and encrypting said data after coding
05/15/2003US20030091111 Method and apparatus for implementing the training phase of adaptive channel equalization on a digital communications path
05/15/2003US20030091019 Radio communication system, radio communication control method, radio communication apparatus, control method for radio communication apparatus, and computer program
05/15/2003US20030091007 User equipment and base station performing data detection using a scalar array
05/15/2003US20030090994 Guard interval length control method in OFDM system and OFDM transmitting and receiving apparatuses
05/15/2003US20030090993 OFDM Transmitting and receiving apparatus
05/15/2003US20030090768 Long haul optical communication system
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