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)
03/2003
03/26/2003EP1295449A1 Configurable exciter for information transmission systems
03/26/2003EP1295430A2 Dual bit error rate estimation in a qam demodulator
03/26/2003EP1295405A1 Ultra wide bandwidth spread-spectrum communications method and system
03/26/2003EP1295271A2 Burst qam downhole telemetry system
03/26/2003EP0993709A4 Multicarrier demux/demod (mcdd) wireless network architecture
03/26/2003EP0920755B1 Improvements in, or relating to, multi-carrier transmission systems
03/26/2003CN1406427A Radio transmitter, radio receiver, and multilever modulation communication system
03/26/2003CN1406426A Transmitter
03/26/2003CN1406421A A modulation scheme for FDD/TDD transceivers
03/26/2003CN1406420A Transmitter, receiver, and communication method
03/26/2003CN1406410A Device for linearising a high-frequency amplifier
03/26/2003CN1405984A Comunication method of high data-rate wireless local network
03/26/2003CN1104132C Data terminal, Method for transmitting data and its apparatus controller
03/26/2003CN1104101C Transmitting and receiving for radio signal
03/26/2003CN1104092C Method and device for analog signal sampling
03/25/2003US6539215 Down converter and demodulator using a three port junction
03/25/2003US6539131 Optical MSK modulator
03/25/2003US6539071 Frequency correction at the receiver end in a packet transmission system
03/25/2003US6539070 Clock synchronizing circuit
03/25/2003US6539067 Channel estimation using soft-decision feedback
03/25/2003US6539066 Integrable radio receiver circuit for frequency-modulated digital signals
03/25/2003US6539065 Digital audio broadcasting receiver
03/25/2003US6539064 Multiple data rate filtered modulation system for digital data
03/25/2003US6539063 System and method for recovering symbol timing offset and carrier frequency error in an OFDM digital audio broadcast system
03/25/2003US6539062 Pilot signal control for digital television DTV transmission
03/25/2003US6539052 System for accelerating the reconfiguration of a transceiver and method therefor
03/25/2003US6538986 Data transmission system and method using nQAM constellation with a control channel superimposed on a user data channel
03/25/2003CA2330876C Methods and apparatus for verifying transmit power levels in a signal point limited transmission system
03/25/2003CA2248072C An apparatus, method and article of manufacture for carrier frequency compensation in an fm radio
03/25/2003CA2185444C Pipelined cell site base station receiver for a spread spectrum signals
03/20/2003WO2003024049A1 Source coding for interference reduction
03/20/2003WO2003024048A2 Hierarchical modulation
03/20/2003WO2003024047A2 Reception of a plurality of phase-modulated signals
03/20/2003WO2003024046A2 Spread spectrum receiver with frequency tracking which uses pilots signals
03/20/2003WO2003024045A1 Method and arrangement for automatic frequency correction
03/20/2003WO2003024044A2 Adaptive method for adapting rate distribution to predefined block lengths
03/20/2003WO2003024043A1 A method and system for channel decoding based on a combination of punctured convolutional code and qam
03/20/2003WO2003024042A1 Method and apparatus for multiple resolution carrier offset recovery
03/20/2003WO2003024041A1 Multicarrier signal, method for tracking a transmission channel based on such a signal and device therefor
03/20/2003WO2003024015A1 Baseband receiver and method for high data rate wireless personal area networks
03/20/2003WO2003024014A2 Method for the adapting the bit rate of a bit stream which is to be transmitted in a communication system and corresponding communication device
03/20/2003WO2003023984A1 Hetrodyne receiver and ic
03/20/2003WO2003023974A1 Method and apparatus for constellation decoder
03/20/2003WO2003023950A2 Receiver
03/20/2003WO2003023949A1 State metric rescaling for viterbi decoding
03/20/2003WO2003001730A9 Method and device for transferring data according to an arq-method
03/20/2003WO2002031998A9 Wavelet receiver with removal of dc offset
03/20/2003US20030056221 Digital implementation of multi-channel demodulators
03/20/2003US20030055518 Digital mixing system with double arrangement for fail safe
03/20/2003US20030054851 Apparatus and method for controlling transmission power in a mobile communication system
03/20/2003US20030054842 Methods and apparatus for simultaneously communicating voice and data in an analog cordless telephone system
03/20/2003US20030054790 Receiver
03/20/2003US20030054786 Apparatus and method for compensating for the offset of a mixer
03/20/2003US20030054777 AM band transmission using multi-tone modulation
03/20/2003US20030054768 Method and apparatus for acquiring and tracking pilots in a CDMA communication system
03/20/2003US20030054764 Carrierless ultra wideband wireless signals for conveying application data
03/20/2003US20030054755 Wireless receiver with anti-jamming
03/20/2003US20030053571 Mechanism for OFDM equalizer tap initialization using an adaptive algorithm
03/20/2003US20030053568 State metric rescaling for Viterbi decoding
03/20/2003US20030053566 Method and apparatus for efficient calculating distance metric
03/20/2003US20030053564 Digital phase locked loop
03/20/2003US20030053563 Quadrature gain and phase imbalance correction in a receiver
03/20/2003US20030053562 Electronic component allowing the decoding of a radiofrequency transmission channel conveying coded digital information, in particular for satellite digital telebroadcasting
03/20/2003US20030053561 Tuning a station
03/20/2003US20030053559 Frequency offset estimation for communication systems method and device for inter symbol interference
03/20/2003US20030053557 Reduced complexity coding system using iterative decoding
03/20/2003US20030053555 Ultra wide bandwidth spread-spectrum communications system
03/20/2003US20030053554 Ultra wide bandwidth spread-spectrum communications system
03/20/2003US20030053553 Subscriber unit producing a modulated digital frequency
03/20/2003US20030053551 Method and apparatus for performing Nyquist folding frequency modulation
03/20/2003US20030053550 System and method for recovering symbol timing offset and carrier frequency error in an OFDM digital audio broadcast system
03/20/2003US20030053549 Communication device and transmission mode selecting method
03/20/2003US20030053534 Transmit amplitude independent adaptive equalizer
03/20/2003US20030053532 Displaying modulation errors for OFDM signals
03/20/2003US20030053530 Communication control method
03/20/2003US20030053529 Self-tuning transmitter
03/20/2003US20030053527 Multi-user detection in an MC-CDMA telecommunication system
03/20/2003US20030053520 Digital telecommunication radio using mutually orthogonal spreading codes to simultaneously transmit multiple data channels within the same ISM transmission band
03/20/2003US20030053493 Allocation of bit streams for communication over-multi-carrier frequency-division multiplexing (FDM)
03/20/2003US20030053488 Delay compensation
03/20/2003US20030053484 Multi-carrier frequency-division multiplexing (FDM) architecture for high speed digital service
03/20/2003US20030053476 Mapping of bit streams into MPEG frames
03/20/2003US20030053412 OFDM receiving method and apparatus
03/20/2003US20030053411 Technique for continuous OFDM demodulation
03/20/2003US20030053410 Interleaving to avoid wideband interference in a multi-carrier communications system
03/20/2003US20030052662 Method and apparatus for measuring the instantaneous frequency of FM signals
03/20/2003DE10035065C2 Leistungsverstärkerschaltung mit Versorgungseinstellung zum Steuern des Spitzen-Mittelwert-Leistungsverhältnisses des verstärkten Signals und Verfahren zum Verstärken A power amplifier circuit with supply setting for controlling the peak-to-average power ratio of the amplified signal and method for enhancing
03/20/2003CA2460504A1 Multicarrier signal, method for tracking a transmission channel based on such a signal and device therefor
03/20/2003CA2459260A1 Reception of a plurality of phase-modulated signals
03/19/2003EP1294154A2 OFDM receiving method and apparatus
03/19/2003EP1294153A2 Interleaving for the avoidanceof wideband interference in a multicarrier communications system
03/19/2003EP1294152A2 Calculation of soft decision values in a 64-QAM receiver
03/19/2003EP1294151A1 DC offset correction for a direct-conversion receiver
03/19/2003EP1294150A2 Adaptive algorithm for the equaliser of a multicarrier receiver
03/19/2003EP1294148A1 Delay spread estimation of multipath fading channels in a OFDM receiver
03/19/2003EP1294103A2 Arrangement for adjustably filtering a HF-signal
03/19/2003EP1294089A2 Remodulation of an RF carrier modulated signal
03/19/2003EP1293075A2 Carrier modulator for use in a transmitter or transceiver
03/19/2003EP1293074A1 Method and apparatus for modulating a radio signal using digital amplitude and phase control signals
03/19/2003EP1293073A1 Demodulator for cpfsk-modulated signals by use of a linear approximation to the cpfsk signal
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