Patents for H04L 27 - Modulated-carrier systems (89,721)
04/2005
04/27/2005EP1526674A1 Method for subcarrier allocation and for modulation scheme selection in a wireless multicarrier transmission system
04/27/2005EP1526669A1 Digital signal receiver
04/27/2005EP1526668A1 Multi-carrier transmitting apparatus and multi-carrier transmitting method
04/27/2005EP1525730A2 Method for dividing the bit rate of qpsk signals into two or several subchannels
04/27/2005EP1525729A1 Reception arrangement for a radio signal
04/27/2005EP1525728A1 Fsk receiver having a variable threshold slicer stage and corresponding method
04/27/2005EP1525727A2 Method and apparatus for hybrid decision feedback equalization
04/27/2005EP1525726A2 Frequency domain equalization of communication signals
04/27/2005EP1525704A1 Time-frequency interleaved mc-cdma for quasi-synchronous systems
04/27/2005EP1525698A1 Training prefix modulation method and receiver
04/27/2005EP1525688A1 Centralized buffer architecture for an orthogonal frequency division multiplexing (ofdm) receiver
04/27/2005EP1525687A1 Radio base station apparatus
04/27/2005EP1525686A1 Apparatus and method for improved performance in mc-cdma radio telecommunication systems that use pulse-shaping filters
04/27/2005EP1525685A1 Method and apparatus to establish constellations for imperfect channel state information at a receiver
04/27/2005EP1525667A1 Wireless signal loss detection
04/27/2005EP1525664A2 Method and system for memory management in low density parity check (ldpc) decoders
04/27/2005EP1525659A1 Quadrature demodulator using a fft-processor
04/27/2005EP1483864A4 System and method for communicating data during an audio conference
04/27/2005EP1483863A4 System and method for dynamically establishing optimum audio quality in an audio conference
04/27/2005EP1483646A4 System and method for communication channel and device control via an existing audio channel
04/27/2005CN2696248Y Base station for transmitting transmission block set using mixed automatic repeat require
04/27/2005CN1611048A Method and apparatus for multi-carrier transmission
04/27/2005CN1611026A Apparatus and method for generating preamble sequence in an OFDM communication system
04/27/2005CN1611006A Transmitter having a Sigma-Delta modulator with a non-uniform polar quantizer and methods thereof
04/27/2005CN1610345A Digital modulating circuit and method and digital demodulating circuit and method
04/27/2005CN1610344A Digital audio frequency system with shifter
04/27/2005CN1610343A Receiver with low power listen mode in a wireless local area network
04/27/2005CN1610342A Method and equipment for interpolating or garbling signals
04/27/2005CN1610333A Method for subcarrier allocation and for modulation scheme selection in a wireless multicarrier transmission system
04/27/2005CN1610285A Method for estimating communication channel in OFDM system
04/27/2005CN1199479C Nonlinear distortion compensation circuit, transmitting apparatus and mobile communication equipment
04/27/2005CN1199478C Method and mobile station for implementing up chain link ratio matching in CDMA system
04/27/2005CN1199451C Transmitter for transmitting orthogonal frequency-division multiplying singnal by way of time division and its method
04/27/2005CN1199450C Communication system in digital television
04/27/2005CN1199440C Receiver for digital television system of 8 NHZ channels
04/27/2005CN1199416C Frequency error detecting device and frequency error detecting method
04/27/2005CN1199415C Multicarrier communication system and method for peak power control
04/27/2005CN1199414C Multiple frequency band data communication equipment and communication method
04/27/2005CN1199413C Difference quadrature phase shift key base-frequency modulation device and method
04/27/2005CN1199378C Method for identifying varied data pulse series in digital communication system and communication equipment
04/27/2005CN1199359C Method of error protected transmission and receiving and transmission system for transmission of data
04/26/2005US6885712 Methods and devices for minimizing interblock interference using an optimum time of reference
04/26/2005US6885710 Apparatus and method for channel encoding/decoding in a communication system
04/26/2005US6885708 Training prefix modulation method and receiver
04/26/2005US6885699 Semi-stationary quiescent mode transmission
04/26/2005US6885697 Method of setting communication bands and communication device
04/26/2005US6885696 Notifying bit allocation changes in a multicarrier modulation communications system
04/26/2005US6885693 Synchronization in digital data transmission systems
04/26/2005US6885679 System and method for layer 2 frame delineation recovery
04/26/2005US6885652 Code division multiple access (CDMA) communication system
04/26/2005US6885341 Inverted-F ferroelectric antenna
04/26/2005US6885322 Apparatus and method for transmitter phase shift compensation
04/26/2005US6885283 Combined tire pressure monitoring and keyless entry receiver
04/26/2005US6885282 Combined tire pressure monitoring and keyless entry receiver
04/26/2005US6885263 Tunable ferro-electric filter
04/26/2005US6885256 Input circuit for an HF-transmitting component
04/26/2005US6885241 Type-based baseband predistorter function estimation technique for non-linear circuits
04/21/2005WO2005036919A2 Optimizing performance of a digital subscriber line
04/21/2005WO2005036849A1 Method and apparatus for signal demodulation
04/21/2005WO2005036848A1 Apparatus and method to combine high data rate wideband packetized signals in a multiple antenna receiver
04/21/2005WO2005036847A2 An apparatus and associated methods to implement a high throughput wireless communication system
04/21/2005WO2005036845A1 Frequency error estimation using multiple integration lengths
04/21/2005WO2005036790A1 Transmitter apparatus, communication system, and communication method
04/21/2005WO2005036775A2 Apparatus and method of multiple antenna transmitter beamforming of high data rate wideband packetized wireless communication signals
04/21/2005WO2005036763A1 Multi-channel coded orthogonal frequency division modulation system
04/21/2005WO2005036755A1 Coded modulation for partially coherent systems
04/21/2005WO2005036753A2 Error-correcting multi-stage code generator and decoder for communication systems having single transmitters or multiple transmitters
04/21/2005WO2005018183B1 Method of filtering a radio communication signal, comprising the calibration of an adaptive system, and corresponding radio communication device
04/21/2005WO2005018128A3 Method for the digital filtering of a useful radio communication signal and corresponding radio communication device
04/21/2005WO2005018127A3 Method of filtering a useful radio communication signal, comprising a digital power estimation, and corresponding radio communication device
04/21/2005US20050085873 Method and apparatus for efficient power/data transmission
04/21/2005US20050085281 Infinite speed space communications using information globes
04/21/2005US20050085249 Method, apparatus and system for pilotless frequency offset compensation in multipoint-to-point wireless systems with OFDM
04/21/2005US20050085236 Method for subcarrier allocation and modulation scheme selection in wireless multicarrier transmission system
04/21/2005US20050085214 Carrier search methods and apparatus
04/21/2005US20050085200 Antenna interface unit
04/21/2005US20050085198 Power boosting technique for wireless multi-carrier power amplifier
04/21/2005US20050085191 Apparatus and methods for determination of gain factors for wireless communication transmission power
04/21/2005US20050084052 Method and device for processing the frequency shift of the carrier frequency of a signal modulated with a quadrature continuous single-carrier modulation
04/21/2005US20050084046 Timing recovery circuit and timing recovery method
04/21/2005US20050084043 Adaptive multi-step combined DC offset compensation for edge 8-PSK
04/21/2005US20050084042 Dat-aided frequency offset detection using phase unwrapping
04/21/2005US20050084041 FSK signal demodulation circuit
04/21/2005US20050084040 Method for modulation detection
04/21/2005US20050084038 Receiver and receiving method and program
04/21/2005US20050084037 Receiver with low power listen mode in a wireless local area network
04/21/2005US20050084036 Symbol detecting with large frequency error
04/21/2005US20050084035 Apparatus and method for transmitting and receiving a pilot signal in a communication system using a multi-carrier modulation scheme
04/21/2005US20050084034 Method for trimming a two-point modulator, and a two-point modulator having a trimming apparatus
04/21/2005US20050084033 Scalable transform wideband holographic communications apparatus and methods
04/21/2005US20050084032 Wideband holographic communications apparatus and methods
04/21/2005US20050084031 Holographic communications using multiple code stages
04/21/2005US20050084030 Method of transmitting preamble for synchronization in a MIMO-OFDM communication system
04/21/2005US20050084025 Timing offset compensation in orthogonal frequency division multiplexing systems
04/21/2005US20050084024 Multicarrier modulation
04/21/2005US20050084023 Method for the frequency and time synchronization of an odm receiver
04/21/2005US20050084004 Wireless DOCSIS modem
04/21/2005US20050084000 Method and apparatus for transmission and reception within an OFDM communication system
04/21/2005US20050083972 Adaptive allocation for variable bandwidth multicarrier communication
04/21/2005US20050083872 Hierarchical data collection network supporting packetized voice communications among wireless terminals and telephones