Patents for H04L 27 - Modulated-carrier systems (89,721) |
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08/21/2001 | US6278741 Timing recovery circuit in QAM modems |
08/21/2001 | US6278725 Automatic frequency control loop multipath combiner for a rake receiver |
08/21/2001 | US6278686 Construction of a multicarrier signal |
08/21/2001 | US6278685 Robust transmission mode |
08/21/2001 | US6278403 Autonomous hardwired tracking loop coprocessor for GPS and WAAS receiver |
08/21/2001 | US6278391 Method and apparatus for D.C. offset correction in digital-to-analog converters |
08/16/2001 | WO2001060007A1 Method and circuit arrangement for demodulation of a quadrature amplitude- or phase-modulated signal |
08/16/2001 | WO2001060006A1 COMBINED TRANSMIT FILTER AND D-to-A CONVERTER |
08/16/2001 | WO2001060005A1 Method for detecting the remaining carrier power on a multi-carrier signal that is qam-modulated in the 8k mode according to the dvb-t-standard |
08/16/2001 | WO2001060004A1 8-psk transmission filtering using reduced look-up tables |
08/16/2001 | WO2001060003A1 Method and apparatus for a carrier frequency control in a wireless communication system |
08/16/2001 | WO2001059996A1 Peer-to peer communication system with receiver adjustment using stored transmission parameters |
08/16/2001 | WO2001059980A1 Dtse at less than two complex samples per symbol |
08/16/2001 | WO2001059962A1 Integrated beamforming/rake/mud cdma receiver architecture |
08/16/2001 | WO2001059937A2 Multipath doppler-adjusted frequency tracking loop |
08/16/2001 | WO2001059475A1 Device for transmitting data in a motor vehicle |
08/16/2001 | US20010014101 Modulation/demodulation of pilot carrier means and method to perform the modulation/demodulation |
08/16/2001 | US20010013814 Contactless IC card system |
08/16/2001 | EP1124348A2 Uplink timing synchronization and access control |
08/16/2001 | EP1124347A2 Uplink timing synchronization and access control |
08/16/2001 | EP1124344A1 Ofdm communication device |
08/16/2001 | EP1123613A1 Fractional-bit transmission using multiplexed constellations |
08/16/2001 | EP1123610A1 Digital variable symbol rate modulation |
08/16/2001 | CA2660923A1 Access channel structure for wireless communication system |
08/16/2001 | CA2397390A1 Multipath doppler-adjusted frequency tracking loop |
08/15/2001 | CN1308808A Method for transmitting digital data via a transmission channel subject to peturbations occuring in bursts |
08/15/2001 | CN1308798A Calceller for jamming wave by interence |
08/15/2001 | CN1308471A Mobile comm message transmitting and receiving method and equipment |
08/15/2001 | CN1308462A Middle layer multidimensional frequency transmission method for radio broadcast TV network |
08/15/2001 | CN1308461A Middle layer multidimensional frequency transmission method for cable TV network |
08/15/2001 | CN1308439A Carrier distribution message in multiple carrier system |
08/15/2001 | CN1308427A Signal structure, detection and estimation of timing sync and access of upstream link |
08/15/2001 | CN1308417A Channel estimation device and method for radio system |
08/14/2001 | US6275990 Transport of payload information and control messages on multiple orthogonal carriers spread throughout substantially all of a frequency bandwith |
08/14/2001 | US6275688 Double balanced mixer |
08/14/2001 | US6275554 Digital symbol timing recovery network |
08/14/2001 | US6275551 Apparatus for receiving digital information signals |
08/14/2001 | US6275548 Timing recovery system |
08/14/2001 | US6275544 Baseband receiver apparatus and method |
08/14/2001 | US6275543 Method for reference signal generation in the presence of frequency offsets in a communications station with spatial processing |
08/14/2001 | US6275542 Direct conversion receiver including mixer down-converting incoming signal, and demodulator operating on downconverted signal |
08/14/2001 | US6275539 System and method for modulating a frequency signal |
08/14/2001 | US6275525 Enhanced method for adaptive equalization technique in mobile wireless systems |
08/14/2001 | US6275522 Method for allocating data and power in a discrete, multi-tone communication system |
08/14/2001 | CA2214061C Differential psk signalling in cdma networks |
08/09/2001 | WO2001058125A2 Digital subscriber line communication system |
08/09/2001 | WO2001058106A1 Method and device for synthesizing, transmitting, receiving and evaluating multivariate signals according to their form and multiposition and locally according to their spectrum |
08/09/2001 | WO2001058105A1 System and method for near optimal joint channel estimation and data detection for cofdm systems |
08/09/2001 | WO2001058104A1 Timing reproducing device and demodulator |
08/09/2001 | WO2001058078A1 High speed downhole communications network having point to multi-point orthogonal frequency division multiplexing |
08/09/2001 | WO2001058059A1 Method and apparatus for achieving 180° phase invariant transmission in a pcm modem system |
08/09/2001 | WO2001058027A2 Pilot symbol assisted modulation and demodulation in wireless communication systems |
08/09/2001 | WO2001058024A1 Method of differential coding and modulation |
08/09/2001 | WO2001058022A1 D/a conversion method and apparatus |
08/09/2001 | WO2001058012A2 High-efficiency power modulators |
08/09/2001 | US20010012783 Carrier constellation information in multi-carrier systems |
08/09/2001 | US20010012776 Distributed circuit switchboard radio communications network |
08/09/2001 | US20010012762 Transmission system |
08/09/2001 | US20010012322 Signal encoding transmission apparatus, signal decoding receiving apparatus, and program recording medium |
08/09/2001 | US20010012275 Radio Communication system |
08/09/2001 | DE10014463A1 Verfahren und Schaltungsanordnung zur sicheren Übertragung in Digitalübertragungssystemen Method and circuit arrangement for secure transmission in digital communication systems |
08/09/2001 | DE10005497A1 Verfahren und Schaltungsanordnung zum Demodulieren eines quadraturamplituden- oder phasenmodulierten Signals Method and circuit for demodulating a quadrature amplitude or phase modulated signal |
08/09/2001 | DE10005287A1 Verfahren zum Bestimmen der Restträgerleistung bei einem nach dem DVB-T-Standard im 8K-Modus QAM-modulierten Multiträgersignal Method for determining the residual carrier power in a accordance with the DVB-T standard in the 8K mode QAM-modulated multi-carrier signal |
08/08/2001 | EP1122893A1 Transmission apparatus and method of signal-point generation |
08/08/2001 | EP1122650A2 Communication system with multicarrier telephony transport |
08/08/2001 | EP1121789A1 Method and apparatus of providing adaptive equalization using sign permutation filtering |
08/08/2001 | EP1121786A1 Fast dtmf identification |
08/08/2001 | EP0779000B1 Code acquisition in a cdma communication system using multiple walsh channels |
08/08/2001 | EP0623256B1 Variable speed asynchronous modem |
08/08/2001 | CN1307751A Radio terminal device |
08/08/2001 | CN1307749A Method and apparatus for d.c. offset carrection in digital-to-analog converters |
08/08/2001 | CN1307423A Fast ionterrelation method for communication system |
08/08/2001 | CN1307404A Phase-adjusting system |
08/08/2001 | CN1069472C Error tracking loop |
08/08/2001 | CN1069464C Receiver with quadrature decimation stage and method of processing digital signals |
08/07/2001 | US6272326 Distortion compensation address generator, distortion compensating circuit, and transmitter |
08/07/2001 | US6272190 System for wireless transmission and receiving of information and method of operation thereof |
08/07/2001 | US6272186 Normal burst acquisition system for use in a cellular communications network |
08/07/2001 | US6272184 Non-coherent frequency shift keying detection scheme |
08/07/2001 | US6272168 Code sequence generator in a CDMA modem |
08/07/2001 | US6271950 Optical differential phase shift keying transmission system having multiplexing, routing and add/replace capabilities |
08/07/2001 | CA2214058C Method and system providing unified dpsk-psk signalling for cdma-based satellite communications |
08/07/2001 | CA2199762C A transmission system for digital audio broadcasting using pseudo-random number sequences in frame headers |
08/02/2001 | WO2001056239A2 Clock synchronization, frequency synchronization, channel sounder and equalizer for ofdm using pilots equidistant in the frequency domain |
08/02/2001 | WO2001056238A1 Transverter control mechanism for a wireless modem in a broadband wireless access system |
08/02/2001 | WO2001056188A1 Offset carrier frequency correction in a two-way broadband wireless access system |
08/02/2001 | WO2001056177A1 Radiotelephone receiver and method with improved dynamic range and dc offset correction |
08/02/2001 | US20010011213 Modem using a digital signal processor and a signal based command set |
08/02/2001 | US20010010713 Power amplifier having negative feedback circuit for transmitter |
08/02/2001 | US20010010709 Distortion compensating device |
08/02/2001 | US20010010703 Pattern generation circuit, multi-path detection circuit employing the same and multi-path detection method |
08/02/2001 | DE10001854A1 Verfahren und Vorrichtung zur Ermittlung der Trägerfrequenz von Basisstationen im mobilen Empfänger eines mit W-CDMA arbeitenden zellularen Mobilfunksystems Method and apparatus for determining the carrier frequency of base stations in the mobile receiver operating with a W-CDMA cellular mobile radio system |
08/02/2001 | DE10000958A1 Schaltungsanordnung zur Erzeugung eines quadraturamplitudenmodulierten Sendesignals Circuit arrangement for producing a quadrature amplitude modulated transmission signal |
08/01/2001 | EP1120944A2 Modulation system with on-line IQ calibration |
08/01/2001 | EP1120943A1 Transmission of bit and gain allocation tables in multicarrier systems |
08/01/2001 | EP1120942A2 Demodulator with automatic quadrature control |
08/01/2001 | EP1120929A1 Multi-carrier signal transmitter and multi-carrier signal receiver |
08/01/2001 | EP1120927A2 Receiver and method for detection of the received power |
08/01/2001 | EP1120902A2 Transmitter and mobile station |
08/01/2001 | EP1120899A1 Demodulation structure and method |