Patents for H04L 27 - Modulated-carrier systems (89,721) |
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09/12/2001 | EP1133092A1 Communication method and communication device |
09/12/2001 | EP1133072A1 Communication terminal device and channel estimating method |
09/12/2001 | EP1133067A2 Spreading code generation apparatus and CDMA receiver |
09/12/2001 | EP1133066A1 Transmitter/receiver |
09/12/2001 | EP1131974A2 Cellular communication device with scanning receiver and continuous mobile communication system employing same |
09/12/2001 | EP1131929A1 Method and apparatus for the determination of the predistortion parameters in a quadrature modulator, by measuring the output power |
09/12/2001 | EP1131928A1 Block joint source-channel coding |
09/12/2001 | EP1131909A1 Channel spreading device and method for cdma communication system |
09/12/2001 | EP1131896A2 Method and apparatus for saving current while performing signal strength measurements in a homodyne receiver |
09/12/2001 | EP1068707A4 System, device and method for improving a defined property of transform-domain signals |
09/12/2001 | EP1068706A4 System, device and method for improving a defined property of transform-domain signals |
09/12/2001 | EP0847642A4 Am compatible digital waveform demodulation using a dual fft |
09/12/2001 | EP0845176A4 Dynamic allocation of bandwidth for transmission of audio signals and a video signal |
09/12/2001 | EP0796529A4 Orthogonal code division multiple access communication system having multicarrier modulation |
09/12/2001 | CN1312979A System and method for narrowing the range of frequency uncertainty of a doppler shifted signal |
09/12/2001 | CN1312912A Method and system for aiding GPS receivers via a cellular or PCS network |
09/12/2001 | CN1071077C 数字数据接收机 Digital data receiver |
09/11/2001 | US6289487 Efficient modified viterbi decoder |
09/11/2001 | US6289069 Digital filter for rotation correction loop of a QPSK or QAM demodulator |
09/11/2001 | US6289063 QAM receiver with improved immunity to crosstalk noise |
09/11/2001 | US6289057 Method and apparatus for energy detection in a modem |
09/11/2001 | US6289056 Broadband multicarrier modulator and corresponding programming method |
09/11/2001 | US6289048 Apparatus and method for improving dynamic range in a receiver |
09/11/2001 | US6289000 Frame control encoder/decoder for robust OFDM frame transmissions |
09/11/2001 | US6288639 Low power installation of wireless security system devices |
09/11/2001 | US6288631 Power-line carrier communications system |
09/11/2001 | US6288619 Bias circuit for use in quadrature modulator |
09/11/2001 | US6288618 Logic-based architecture for FSK modulation and demodulation |
09/07/2001 | WO2001065848A1 System and method for improving video transmission over a wireless network. |
09/07/2001 | WO2001065794A1 Method of multicarrier symbol synchronisation by using correlation |
09/07/2001 | WO2001065793A1 Method and apparatus for buffering data samples in a software based adsl modem |
09/07/2001 | WO2001065792A1 Method for estimating a radio frequency offset based on sequences of predefined symbols, and receiver implementing said method |
09/07/2001 | WO2001065791A1 Correction of quadrature and gain errors in homodyne receives |
09/07/2001 | WO2001065774A1 Scaleable architecture for multiple-port, system-on-chip adsl communications systems |
09/07/2001 | WO2001065755A1 Method for synchronizing a plurality of chaotic systems and method for multichannel communication using synchronized chaotic systems |
09/07/2001 | WO2001065749A1 Method and apparatus for mobile platform reception and synchronization in direct digital satellite broadcast system |
09/07/2001 | WO2001065748A1 Encoding method for multicarrier transmission and encoder using the same |
09/07/2001 | WO2001065706A2 Device for linearising a high-frequency amplifier |
09/07/2001 | WO2001065703A2 High data-rate powerline network system and method |
09/07/2001 | WO2001065702A2 A modulation scheme for fdd/tdd transceivers |
09/07/2001 | WO2001003396A3 Equalization with dc-offset compensation |
09/07/2001 | CA2336556A1 Method to determine a channel characteristic, and discrete wavelet transmitter and receiver to perform the method |
09/06/2001 | US20010019593 xDSL sample rate compensation using phase balancing |
09/06/2001 | US20010019583 Bi-directional viterbi equalization device |
09/06/2001 | US20010019582 Frequency modulation method and modem unit employing such method |
09/06/2001 | DE10065267A1 Digital modulation-demodulation method for symbol mapping in quadrature amplitude modulation using digital signal processor by converting bit vector to symbols using transfer function |
09/05/2001 | EP1130919A2 Apparatus and method for digital data transmission |
09/05/2001 | EP1130918A2 Apparatus and method for digital data transmission |
09/05/2001 | EP1130868A2 Coprocessor for use in DMT modems |
09/05/2001 | EP1130867A2 Receiver and method of detection, for the decoding of a received DQPSK, channel-coded signal |
09/05/2001 | EP1130866A1 Correction of quadrature and gain errors in homodyne receivers |
09/05/2001 | EP1130865A1 Dummy error addition circuit |
09/05/2001 | EP1130864A2 Performance of analogue-mode operations, when transmitting audio signals, and data |
09/05/2001 | EP1130863A2 Reception in the analogue mode of a wireless TDMA system |
09/05/2001 | EP1130862A2 Bidirectional Viterbi equalization |
09/05/2001 | EP1130861A1 Method for the estimation of a transmission or telecommunications channel |
09/05/2001 | EP1130787A2 Composite trellis system and method |
09/05/2001 | EP1129556A1 Method and apparatus for reducing distortion of digital data |
09/05/2001 | EP1000491A4 Biphase modulator with balun design |
09/05/2001 | EP0938783B1 Method for wireless information transfer |
09/05/2001 | EP0848877B1 Process for transferring digital data via interference-affected radio channels and device for receiving digital data transmitted via interference-affected radio channels |
09/05/2001 | EP0789958B1 Method of, and apparatus for, symbol timing recovery |
09/05/2001 | CN1311923A Mobile communication terminal |
09/05/2001 | CN1311575A Demodulation device for subcarrier frequency signals |
09/05/2001 | CN1311574A Method and device for fulfilling analog operation during receiving data and instruction voice |
09/05/2001 | CN1311573A Method and device for proceeding analog operation during transmitting audio frequency and data |
09/05/2001 | CN1070667C Bidirectional demodulation method and apparatus |
09/04/2001 | US6285881 Method and system for quickly finding a control channel in a private cellular system |
09/04/2001 | US6285721 Method for assisting simple synchronization to the carrier of a dispersed-energy QPSK signal |
09/04/2001 | US6285720 Method and apparatus for high data rate wireless communications over wavefield spaces |
09/04/2001 | US6285718 Adaptive noise canceller |
09/04/2001 | US6285708 Spread spectrum bit allocation algorithm |
09/04/2001 | US6285654 Apparatus and method for symbol alignment in a multi-point OFDM or DMT digital communications system |
09/04/2001 | US6285412 Adaptive pre-equalization apparatus for correcting linear distortion of a non-ideal data transmission system |
09/04/2001 | US6285307 Method of and a device for analog signal sampling |
09/04/2001 | US6285255 Adaptive compensation for carrier signal phase distortion |
09/04/2001 | US6285251 Amplification systems and methods using fixed and modulated power supply voltages and buck-boost control |
09/04/2001 | CA2221904C Adaptive communication apparatus |
09/04/2001 | CA2217839C A windowing technique for blind equalization |
09/04/2001 | CA2217428C Artificial fading for frequency offset mitigation |
08/30/2001 | WO2001063872A1 Communication system with predistortion |
08/30/2001 | WO2001063871A1 Coding method and use of a receiver with a convolutional decoder |
08/30/2001 | WO2001063870A1 Multicarrier receiver with channel estimator |
08/30/2001 | WO2001063868A1 Method and apparatus for implementing the training phase of adaptive channel equalization on a digital communications path |
08/30/2001 | WO2001063867A1 Receiver |
08/30/2001 | WO2001063827A1 Method and device for a built-in self-test on an integrated circuit modulator |
08/30/2001 | WO2001063823A1 System for synchronising a multiple access digital telecommunication system |
08/30/2001 | WO2001063813A1 Method for searching pilot signals to synchronize a cdma receiver with an associated transmitter |
08/30/2001 | WO2001063812A1 Wireless communication transmitter and receiver |
08/30/2001 | WO2001063792A2 Apparatus for linear transmitter with improved loop gain stabilization |
08/30/2001 | US20010017902 Timing error detection circuit, demodulation circuit and methods thereof |
08/30/2001 | US20010017900 Method to transfer trellis code modulated digital data over a digital subscriber line, and related modulator and demodulator devices |
08/30/2001 | US20010017899 Qamd |
08/30/2001 | US20010017898 Non-coherent sequence estimation receiver for modulations |
08/30/2001 | US20010017897 Quadrature amplitude modulation receiver and carrier recovery method |
08/30/2001 | US20010017896 Digital radio communication system and method |
08/30/2001 | US20010017893 High efficiency line driver for high crest-factor signals such as DMT/ADSL signals |
08/30/2001 | US20010017596 D/A conversion method and apparatus |
08/30/2001 | DE10009596A1 Vorrichtung zur Linearisierung eines Hochfrequenz-Verstärkers Apparatus for linearization of an RF amplifier |
08/30/2001 | DE10009485A1 Verfahren zur Vervielfachung von Codierungsstufen A method for multiplication of coding steps |