Patents for H04L 27 - Modulated-carrier systems (89,721) |
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03/08/2001 | CA2386766A1 Timing synchronization and phase/frequency correction of qpsk signals |
03/08/2001 | CA2386745A1 Transceiver with local oscillator frequency settings using the demodulated bit rate |
03/08/2001 | CA2386744A1 Method and system for frequency spectrum resource allocation |
03/08/2001 | CA2384303A1 Channel encoding and decoding method and apparatus |
03/08/2001 | CA2381555A1 Method and apparatus for detecting zero rate frames in a communications system |
03/07/2001 | EP1081908A2 Signal processing without muliplication in receivers for digital signals |
03/07/2001 | EP1081906A2 Multicarrier receiver with channel estimation |
03/07/2001 | EP1081903A1 Bs digital broadcast receiver |
03/07/2001 | EP1081869A2 Methods and apparatus for representation of branch metrics in a communication system decoder |
03/07/2001 | EP1081855A1 Synchronization method and apparatus of a communication receiver |
03/07/2001 | EP1081851A2 Limiting method and limiter apparatus |
03/07/2001 | EP1080951A1 Receiver for receiving tire pressure values and remote control signals |
03/07/2001 | EP1080568A1 Method and apparatus for limiting the amplitude of a transmission signal |
03/07/2001 | EP1080548A1 Combined analog/digital data transmission system |
03/07/2001 | EP1080529A1 Quadrature modulator with carrier leakage compensation |
03/07/2001 | EP0845185B1 Digital transmission system |
03/07/2001 | CN1286858A Method for boubling levels of coding |
03/07/2001 | CN1286851A Device and method for generating quasi-orthogonal code and spreading channel signals in mobile communication system |
03/07/2001 | CN1286842A Demodulator for demodulating digital broadcast signals |
03/07/2001 | CN1286834A Modulation system and mehtods including oversampling of narrow bandwidth signals and DC offset compensation |
03/07/2001 | CN1286827A Coding method and apparatus |
03/07/2001 | CN1286826A Front end interface circuit and method of tuning same |
03/07/2001 | CN1286825A Method and apparatus for estimating frequency offset |
03/07/2001 | CN1286544A Orthogonal frequency-division multiplexing frame synchronization |
03/07/2001 | CN1286542A Amplitude limit method and amplitude limiter device |
03/07/2001 | CN1286541A Orthogonal frequency-division multiplexing communication apparatus and propagation path estimating method |
03/07/2001 | CN1063000C Radio station apparatus and signal transmission method thereof |
03/06/2001 | US6198908 System and a method for transfer of a digital information carrying signal |
03/06/2001 | US6198818 Method and apparatus for controlling the input impedance of an analog front end circuit of a data communications equipment (DCE) device |
03/06/2001 | US6198783 System for wireless serial transmission of encoded information |
03/06/2001 | US6198782 Estimation of frequency offsets in OFDM communication systems |
03/06/2001 | US6198781 Apparatus and method of demodulating coded signal under OFDM transmission |
03/06/2001 | US6198780 Method and apparatus for symbol timing recovery of a vestigial sideband television signal |
03/06/2001 | US6198779 Method and apparatus for adaptively classifying a multi-level signal |
03/06/2001 | US6198778 Method and device for setup of clipping noise of a multicarrier modulation |
03/06/2001 | US6198777 Feher keying (KF) modualtion and transceivers including clock shaping processors |
03/06/2001 | US6198776 Device and method for precoding data signals for PCM transmission |
03/06/2001 | US6198774 Method and apparatus for resolving spectral inversion ambiguities in coded data |
03/06/2001 | US6198557 Telecommunication system having frequency-dividing optical components for the parallel processing of optical pulses |
03/06/2001 | US6198361 Contactless IC card system |
03/01/2001 | WO2001015403A1 Bit allocation method for a discrete multitone (dmt) system |
03/01/2001 | WO2001015402A1 Method and apparatus for reducing peak to average power ratio in digital broadcasting systems |
03/01/2001 | WO2001015400A2 Qam demodulator |
03/01/2001 | WO2001015370A1 A receiver estimation engine for a chaotic system |
03/01/2001 | WO2001015365A1 Ofdm communication device |
03/01/2001 | WO2001015317A1 Automatic gain control loop for frequency conversion of quadrature signals |
03/01/2001 | WO2001015315A1 Method for regulating a frequency offset in a base-station receiver of a data communications system |
03/01/2001 | WO2001015314A2 Device and method for sending a quadrature amplitude-modulated transmission signal |
03/01/2001 | WO2001015102A1 Transmitter for electronic article surveillance system |
03/01/2001 | DE19939588A1 Vorrichtung und Verfahren zum Senden eines quadraturamplitudenmodulierten Sendesignals An apparatus and method for transmitting a quadrature amplitude modulated transmission signal |
03/01/2001 | DE10020933A1 ASK-Modulator und Kommunikationsgerät mit einem ASK-Modulator ASK modulator and communication unit with an ASK modulator |
02/28/2001 | EP1079620A2 Programmable digital signal processor for demodulating digital television signals |
02/28/2001 | EP1079589A2 Method and apparatus for filtering asymmetric digital subcriber line (ADSL) signals |
02/28/2001 | EP1079579A1 OFDM frame synchronisation |
02/28/2001 | EP1079578A2 Data allocation in multicarrier systems |
02/28/2001 | EP1079577A2 Multicarrier modulation |
02/28/2001 | EP1079576A2 Multicarrier receiver with direct extraction of a control signal |
02/28/2001 | EP1079575A2 Conversion of PCM to A DC-centered VSB signal |
02/28/2001 | EP1079574A2 Digitaler Restseitenbandmodulator |
02/28/2001 | EP1079527A2 SIN(X)/X compensation circuitry |
02/28/2001 | EP1079523A2 Switched bandwidth digital filters with slewing |
02/28/2001 | EP1079517A2 Adaptive gain and/or phase adjustment control system and method |
02/28/2001 | EP1078502A2 Ofdm frame synchronisation and equalisation system |
02/28/2001 | EP1078471A1 Method and apparatus for accurate synchronization using symbol decision feedback |
02/28/2001 | EP1078450A1 Methods and apparatus for timing recovery of vestigial sideband (vsb) modulated signals |
02/28/2001 | EP0853845B1 Distributed circuit switched radiocommunications network |
02/28/2001 | CN1286001A Radio transmission from communication station with antenna array to provide desirable radiation pattern |
02/28/2001 | CN1285996A High difinition television vestigial sideband receiver |
02/28/2001 | CN1285995A Network for eleiminating DC offset in a received HDTV signal |
02/28/2001 | CN1285993A Co-channel interference detection network for HDTV receiver |
02/28/2001 | CN1285992A Segment synchronous recovery network for HDTV receiver |
02/28/2001 | CN1285974A Method and device in a telecommunication system |
02/28/2001 | CN1285973A Linear RF power amplifier with optically activated switches |
02/28/2001 | CN1285972A Digital modulation employing single sideband with suppressed carrier |
02/28/2001 | CN1285967A VHF/UHF self-tuning planar antenna system |
02/28/2001 | CN1285920A Device for receiving signals from satelline radio-navigation systems |
02/28/2001 | CN1285919A Method for increasing interference immunity when receiving signals from satellite navigation systems and device for realising the same |
02/28/2001 | CN1285688A Pulse code modulation dc centering vestigial sideband converter |
02/28/2001 | CN1285687A SIN (X)/X Compensation circuit |
02/28/2001 | CN1285686A Vestigial sideband digital modulator |
02/28/2001 | CN1285685A Wave-carried signal generator for complex modulator |
02/28/2001 | CN1285654A Self-adaption gain and/or phase regulation control system and method thereof |
02/28/2001 | CA2316509A1 Echo cancellation device with self-deactivation |
02/27/2001 | US6195534 Communication method, transmitter, receiver, wherein subcarriers are used to transmit digital header and message data in a cellular radio communications system |
02/27/2001 | US6195400 Two-mode demodulating apparatus |
02/27/2001 | US6195399 Method and apparatus for converting a wideband if signal to a complex (quadrature) baseband signal |
02/27/2001 | US6195397 Signal transmission and reception device for new wiring system |
02/27/2001 | US6195396 Encoding/decoding system using 16-QAM modulation encoded in multi-level blocks |
02/27/2001 | US6195385 HTU-C clocking from a single source |
02/27/2001 | US6195341 Communication method, base station and terminal apparatus |
02/27/2001 | US6194978 Interrupt modulation method and apparatus |
02/27/2001 | US6194977 State variable-based table-driven modulation signal generation |
02/27/2001 | US6194963 Circuit and method for I/Q modulation with independent, high efficiency amplitude modulation |
02/27/2001 | CA2201352C Multi-channel transceiver having an adaptive antenna array and method |
02/22/2001 | WO2001013597A1 Method for discriminating two modulated signals |
02/22/2001 | WO2001013586A1 Fast dtmf identification |
02/22/2001 | WO2001013560A1 Robust transmission mode |
02/22/2001 | WO2001013559A1 Multi-carrier signal transmitter and multi-carrier signal receiver |
02/22/2001 | WO2001013533A1 Method and apparatus for coherent demodulation in communication system employing a potentially gated pilot signal |
02/22/2001 | WO2001013528A1 Modulator-demodulator |