Patents for H04L 27 - Modulated-carrier systems (89,721) |
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03/17/2004 | EP1398898A1 Activation of multiple xDSL modems with implicit channel probe |
03/17/2004 | EP1398885A1 Communication optimisation method for a multi-user ofdm digital transmission system using the electrical network |
03/17/2004 | EP1398882A2 Multi-carrier reception for ultra-wideband (UWB) systems |
03/17/2004 | EP1397897A1 Doppler spread/velocity estimation in mobile wireless communication devices and methods therefor |
03/17/2004 | EP1397882A1 Cooperative code-enhanced multi-user communications system |
03/17/2004 | EP1397881A1 Method and device for transferring data according to an arq-method |
03/17/2004 | EP0941582B1 Method for correcting errors from a jamming signal in a frequency hopped spread spectrum communication system |
03/17/2004 | EP0928524B1 Pipeline communication system |
03/17/2004 | EP0804833B1 Frequency synchronized bidirectional radio system |
03/17/2004 | CN1483269A System and method for detecting and correcting phase error between differential signals |
03/17/2004 | CN1483268A Quadrature oscillator with feedback phase mismatch correction |
03/17/2004 | CN1483267A Quadrature modulator with pulse-shaping |
03/17/2004 | CN1482818A Method and apparatus for two-level weight and parallel disturbance cancellation under MPSK modulation |
03/17/2004 | CN1482754A Method and apparatus for two-level weight and parallel disturbance cancellation under MQAM modulation |
03/17/2004 | CN1142689C Method for implementing 8PSK equalizing demodulation in EDGE system |
03/17/2004 | CN1142668C Fast ionterrelation method for communication system |
03/17/2004 | CN1142667C Correction of amplitude and phase imbalance in PSK receiver |
03/16/2004 | US6708235 Multi-modem implementation with host based and digital signal processor based modems |
03/16/2004 | US6708020 Calibration device |
03/16/2004 | US6707866 Clock generator, clock generating method, and signal receiver |
03/16/2004 | US6707863 Baseband signal carrier recovery of a suppressed carrier modulation signal |
03/16/2004 | US6707861 Demodulator for an HDTV receiver |
03/16/2004 | US6707860 DC offset correction for direct-conversion receiver |
03/16/2004 | US6707857 Reference signal pre-distortion for transmitter with frequency synthesizer based phase encoding |
03/16/2004 | US6707856 Transmission of system configuration information |
03/16/2004 | US6707850 Decision-feedback equalizer with maximum-likelihood sequence estimation and associated methods |
03/16/2004 | US6707846 Correlation energy detector and radio communication apparatus |
03/16/2004 | US6707845 Processing for improved performance and reduced pilot |
03/16/2004 | US6707805 Method for initial power control for spread-spectrum communications |
03/16/2004 | US6707804 Fast acquisition of traffic channels for a highly variable data rate reverse link of a CDMA wireless communication system |
03/11/2004 | WO2004021661A1 Modulation and demodulation of a combination of analog and digital signals |
03/11/2004 | WO2004021659A1 Method for generating i/q signal in a tdma transmitter and corresponding modulator |
03/11/2004 | WO2004021617A1 Communication apparatus and communication method |
03/11/2004 | WO2004021616A1 Transmission/reception apparatus and transmission/reception method |
03/11/2004 | WO2004021605A1 Beam-steering and beam-forming for wideband mimo/miso systems |
03/11/2004 | WO2004021588A1 Adaptive phase and gain imbalance cancellation |
03/11/2004 | WO2004021570A1 Voltage control oscillator and quadrature modulator |
03/11/2004 | WO2004021270A1 Method for regulating the input signal of a non-contact transponder |
03/11/2004 | WO2003067751A3 Digital phase locked loop |
03/11/2004 | WO2003023950A3 Receiver |
03/11/2004 | WO2003021795A3 Method and apparatus for suppressing multipath interference usingprecoded pilots |
03/11/2004 | US20040049725 Hybrid arq method with single constellation rearrangement |
03/11/2004 | US20040048619 Apparatus and method for detecting a power ratio between a traffic channel and a pilot channel in a mobile communication system |
03/11/2004 | US20040048592 Automatic gain control circuit controlling gain of receiver including two automatic gain control amplifiers |
03/11/2004 | US20040048590 Trimming method for a transceiver using two-point modulation |
03/11/2004 | US20040048574 Method and apparatus for adapting multi-band ultra-wideband signaling to interference sources |
03/11/2004 | US20040047463 Robust symbol timing recovery circuit for telephone line modem |
03/11/2004 | US20040047439 Path searcher using reconfigurable correlator sets |
03/11/2004 | US20040047435 Channel estimator for WLAN |
03/11/2004 | US20040047434 Apparatus and method for WGIO phase modulation |
03/11/2004 | US20040047431 Process and device for modulating a carrier with amplitude and phase error compensation |
03/11/2004 | US20040047430 Nyquist filter and method |
03/11/2004 | US20040047427 Method and device for transmitting data on at least one electrical power supply line |
03/11/2004 | US20040047410 Method and apparatus for compensating for phase error of digital signal |
03/11/2004 | US20040047372 Techniques for communicating information using hermite-gaussian basis functions |
03/11/2004 | US20040047368 Frame synchronization for OFDM systems |
03/11/2004 | US20040047316 Method and apparatus for generating complex four-phase sequences for a CDMA communication system |
03/11/2004 | US20040047296 Systems and methods for high rate OFDM communications |
03/11/2004 | US20040047285 Sub-banded ultra-wideband communications system |
03/11/2004 | US20040047284 Transmit diversity framing structure for multipath channels |
03/11/2004 | US20040046607 Method and apparatus for modulating a radio signal using digital amplitude and phase control signals |
03/11/2004 | US20040046541 Synthetic RF detection system and method |
03/11/2004 | US20040046524 Signal processing of an amplitude-modulated and/or phase-modulated high frequency signal |
03/11/2004 | DE10335306A1 Vorrichtung und Verfahren für das detektieren eines Leistungsverhältnisses zwischen einem Verkehrskanal und einem Pilotkanal in einem mobilen Kommunikationssystem Apparatus and method for detecting a power ratio between a traffic channel and a pilot channel in a mobile communication system |
03/11/2004 | DE10241959A1 Signal transmission method in radio communication system, includes several intermediate stations with antennas configured as a single smart antenna |
03/11/2004 | DE10239810A1 Verfahren und Sendeeinrichtung zum Übertragen von Daten in einem Mehrträgersystem The method and transmitting means for transmitting data in a multicarrier system |
03/10/2004 | EP1396973A1 Process and device for modulation of a carrier with amplitude and phase error compensation |
03/10/2004 | EP1396972A2 Multicarrier transmission of two data sets |
03/10/2004 | EP1396971A1 Method for demodulating OFDM signals with sampling rate mismatch |
03/10/2004 | EP1396970A1 Method for scaling signal peaks and corresponding transmitter |
03/10/2004 | EP1396953A1 Demodulation timing generation circuit and demodulation apparatus |
03/10/2004 | EP1396947A1 Process for selecting a transmission channel and receiver of signals with antenna diversity |
03/10/2004 | EP1396945A1 Synchronisation method for the uplink channel in a point-to-multipoint communication with ofdm modulation |
03/10/2004 | EP1396166A1 A method for enabling a subscriber entity to actively communicate in a communication network |
03/10/2004 | EP1396159A1 Multi-detection of heartbeat to reduce error probability |
03/10/2004 | EP1396158A1 Transmittal of heartbeat signal at a lower level than heartbeat request |
03/10/2004 | EP1396131A2 Methods and systems for sending side-channel data during data inactive period |
03/10/2004 | EP1396130A1 Narrow band chaotic bi-phase shift keying |
03/10/2004 | EP1396129A1 Blind detection |
03/10/2004 | EP1396109A1 Adaptive coding and modulation |
03/10/2004 | EP1396101A1 Dynamic digital communication system control |
03/10/2004 | EP1396088A2 Quadrature envelope-sampling of intermediate frequency signal in receiver |
03/10/2004 | EP1396078A2 Signal processing of an amplitude-modulated and/or phase-modulated high-frequency signal |
03/10/2004 | EP1293059B1 Hybrid arq method with signal constellation rearrangement |
03/10/2004 | CN1481634A Appts and method for calculating channel decoder input soft decision value in data communications system |
03/10/2004 | CN1481633A Multi-carrier communications with group-based subcarrier allocation |
03/10/2004 | CN1481629A Endcoded QAM |
03/10/2004 | CN1481606A Communications systems |
03/10/2004 | CN1481162A Equalizing system contg comb filter in HDTV system |
03/10/2004 | CN1481130A Method and system for generating low density parity code |
03/10/2004 | CN1481116A Automatic configuration equipment for linking network media and its method |
03/10/2004 | CN1481079A Strength indication circuit of high speed digital receiving signal |
03/10/2004 | CN1141836C Radio receiver |
03/10/2004 | CN1141824C Automatic identification method of conventional digital signal modulation mode having no need of a priori knowledge |
03/10/2004 | CN1141815C Frequency automatic corrector for CDMA multipath fading channel |
03/09/2004 | US6704562 N-port receiver with RF/LO isolation |
03/09/2004 | US6704555 Apparatus and method for calibrating local oscillation frequency in wireless communications |
03/09/2004 | US6704552 Mobile communication apparatus with an automatic frequency controller |
03/09/2004 | US6704551 Calibration of in-phase and quadrature transmit branches of a transmitter |
03/09/2004 | US6704518 Signal transmission system and signal transmission apparatus |