Patents for H04L 27 - Modulated-carrier systems (89,721) |
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01/16/2002 | EP1172979A2 Data transmission system which can use various modulation types |
01/16/2002 | EP1172959A2 Hybrid automatic repeat-request system and method |
01/16/2002 | EP1172956A1 OFDM packet communication receiver |
01/16/2002 | EP1172947A2 Asymmetric bandwith wireless communication techniques |
01/16/2002 | EP1172945A2 Diversity demodulation apparatus |
01/16/2002 | EP1172932A2 A receiver |
01/16/2002 | EP1172927A1 Quadrature demodulator using power sensors |
01/16/2002 | EP1171984A1 Qam modulator |
01/16/2002 | EP1171983A1 Multicarrier receiver with channel estimator |
01/16/2002 | EP1171981A1 Digital gmsk filter |
01/16/2002 | EP1072136B1 Echo phase offset correction in a multicarrier demodulation system |
01/16/2002 | EP0757858B1 Method and apparatus for automatic gain control in a digital receiver |
01/16/2002 | EP0662270B1 Method for synchronising transmitter frequencies in common wave digital audio broadcast |
01/16/2002 | CN1331876A Method for suppressing narrow frequency bands |
01/16/2002 | CN1331871A Method for equalization of complementary carriers in am compatible digital audio broadcast system |
01/16/2002 | CN1331528A Pilot mode design for STTD program in OFDM system |
01/16/2002 | CN1331518A Receiving method and receiving device thereof |
01/16/2002 | CN1078033C Circuit for detecting completion of carrier receovery and symbol timing recovery, method thereof, and HDTV |
01/16/2002 | CN1078026C Determinig method, determing device and data extracting device for big or small received data signals |
01/15/2002 | US6339624 Trellis decoding with multiple symbol noncoherent detection and diversity combining |
01/15/2002 | US6339623 Reference carrier generator device for pulling a reference carrier out of a false stabilized point into a correct stabilized point of synchronism |
01/15/2002 | US6339621 One bit digital quadrature vector modulator |
01/15/2002 | US6339612 Method and apparatus for joint detection of data in a direct sequence spread spectrum communications system |
01/15/2002 | US6339599 Collision handling scheme for discrete multi-tone data communications network |
01/12/2002 | CA2352449A1 Device for analysing electromagnetic signals |
01/10/2002 | WO2002003643A1 Decsion-directed carrier frequency detector and method for qam |
01/10/2002 | WO2002003641A1 Cofdm transmitter with diversity and time delay |
01/10/2002 | WO2002003640A1 Method for the transmission of digital data by means of radio signals with orthogonal frequency division multiplexing (ofdm) |
01/10/2002 | WO2002003639A1 Configurable exciter for information transmission systems |
01/10/2002 | WO2002003636A1 Viterbi equalization using precalculated metrics increments |
01/10/2002 | WO2002003602A1 Digital broadcast transmission with system monitor and display |
01/10/2002 | WO2002003556A2 Method and apparatus for channel gain and channel delay estimation in a multi-carrier cdma system |
01/10/2002 | WO2001048969A3 Multiuser ofdm or dmt communications system for users transmitting at different data rates |
01/10/2002 | US20020004920 Apparatus and method for measuring bit error rate in an OFDM communication system |
01/10/2002 | US20020004871 xDSL symbol processor & method of operating same |
01/10/2002 | US20020004400 Time of arrival estimation for edge/GSM |
01/10/2002 | US20020003847 Clock recovery circuit |
01/10/2002 | US20020003843 Method and apparatus for high data rate wireless communications over wavefield spaces |
01/10/2002 | US20020003798 Rendering multicast service with sufficient reception quality to wireless terminals |
01/10/2002 | US20020003774 Pilot pattern design for a STTD scheme in an OFDM system |
01/10/2002 | US20020003772 Method and apparatus for generating orthogonal frequency division multiplexed signal |
01/10/2002 | US20020003450 RF slipring receiver for a computerized tomography system |
01/09/2002 | EP1170918A1 Method and apparatus for generating orthogonal frequency division multiplexed (OFDM) signal |
01/09/2002 | EP1170917A1 Method and device to provide an OFDM up-link using Time-Frequency interleaving |
01/09/2002 | EP1170916A1 Channel estimator for OFDM system |
01/09/2002 | EP1170915A1 Signal modulation circuit and method for signal modulation |
01/09/2002 | EP1170897A1 Pilot pattern design for a STTD scheme in an OFDM system |
01/09/2002 | EP1170873A1 Phase coherent FSK transmitter |
01/09/2002 | EP1170696A2 Non contact type ic card and system and data transmission method therefor |
01/09/2002 | EP1169824A1 Peer-to-peer communication system with receiver adjustment using stored transmission parameters |
01/09/2002 | EP1169783A1 Signal identification in cdma-radio systems |
01/09/2002 | EP1169780A1 Universal dsl link interface between a dsl digital controller and a dsl codec |
01/09/2002 | CN1330826A QAM modulator for radio communications |
01/09/2002 | CN1330808A Transmitter linearization |
01/09/2002 | CN1330457A Radio communication device |
01/09/2002 | CN1330454A Turbo grille coding modulation |
01/09/2002 | CN1077753C Alogorithmic controlling method of blind balancing system |
01/09/2002 | CN1077749C Precision FFT window position recovery apparatus of orthogonal frequency-division multiplexer system receiver |
01/09/2002 | CN1077746C Output power controller |
01/08/2002 | US6337976 Selective-calling radio receiver using direct conversion method |
01/08/2002 | US6337888 In-phase and quadrature signal regeneration |
01/08/2002 | US6337885 Radio receiver that digitizes a received signal at a plurality of digitization frequencies |
01/08/2002 | US6337877 Method and apparatus for scaling modem transfer capacity in a multi-channel communications system |
01/08/2002 | US6337876 Control of power ratios for in-phase and quadrature channels in a communications system |
01/08/2002 | US6337875 Method and apparatus for generating complex four-phase sequences for a CDMA communication system |
01/08/2002 | US6337606 Digital communications modulator having a modulation processor which supports high data rates |
01/08/2002 | CA2209083C Method and apparatus for decoding an encoded signal |
01/08/2002 | CA2085890C System and method for generating signal waveforms in a cdma cellular telephone system |
01/07/2002 | CA2313672A1 Ofdm system with simple terminals |
01/03/2002 | WO2002102130A2 Control of power spectral density by modulation of subcarriers which do not carry data |
01/03/2002 | WO2002001825A1 Detection and correction of phase jumps in a phase sequence |
01/03/2002 | WO2002001788A2 Dual bit error rate estimation in a qam demodulator |
01/03/2002 | WO2002001749A2 Ofdm antenna diversity receiver |
01/03/2002 | WO2002001739A1 Method and apparatus to reduce spurious and intermodulation products through static non-linearity correction of digital conversion |
01/03/2002 | WO2002001737A2 Method and system for sending information over metal wire |
01/03/2002 | WO2002001729A2 Rate n/n systematic, recursive convolutional encoder and corresponding decoder |
01/03/2002 | WO2001080510A8 Data allocation with variable snr margins |
01/03/2002 | WO2001073954A3 Asymmetric digital subscriber line methods suitable for long subscriber loops |
01/03/2002 | WO2001067593A3 Improved method and apparatus for improving the efficiency of power amplifiers, operating under a large peak-to-average ratio |
01/03/2002 | WO2001043384A3 Viterbi slicer for turbo codes |
01/03/2002 | WO2001033811A3 Background communication using shadow of audio signal |
01/03/2002 | WO2000074265A8 Communication device and communication method |
01/03/2002 | US20020001355 Receiver and method for avoiding intersymbol interference in a high speed transmission system |
01/03/2002 | US20020001353 Enhanced slice prediction feedback |
01/03/2002 | US20020001352 Channel estimator for OFDM system |
01/03/2002 | US20020001350 Method and system for broadcasting a digital data signal within an analog TV signal using orthogonal frequency division multiplexing |
01/03/2002 | US20020001349 Robust digital communication system |
01/03/2002 | US20020001341 Method of, and receiver for, estimating the bit rate of data |
01/03/2002 | US20020001340 Asymmetric digital subscriber line methods suitable for long subscriber loops |
01/03/2002 | US20020000890 Radio communications apparatus |
01/03/2002 | US20020000881 Adaptive distortion-compensation apparatus |
01/03/2002 | US20020000876 FSK signal demodulating integration-discharge circuit |
01/03/2002 | US20020000620 Semiconductor integrated circuit |
01/03/2002 | DE10030390A1 Demodulationsverfahren und Demodulator für CPFSK-modulierte Signale A demodulating method and demodulator for CPFSK-modulated signals |
01/03/2002 | CA2406012A1 Dual bit error rate estimation in a qam demodulator |
01/02/2002 | EP1168748A2 Peak power reduction in a multicarrier modulator |
01/02/2002 | EP1168747A2 Control of interpolation in a multicarrier receiver |
01/02/2002 | EP1168746A2 Data allocation to aid frequency-domain interpolation |
01/02/2002 | EP1168745A1 Radio communication terminal capable of specifying burst position accurately and having small frequency error of regenerative carrier wave |
01/02/2002 | EP1168744A1 Timing reproducing device and demodulator |