Patents for H04L 27 - Modulated-carrier systems (89,721) |
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03/01/2000 | EP0982907A2 Reference subcarrier setting for multicarrier transmission |
03/01/2000 | EP0982906A2 Multi-carrier transmitter circuit and communication equipment |
03/01/2000 | EP0982905A1 Universal PSK modulation apparatus and method |
03/01/2000 | EP0982892A2 Packet-based binary convolutional codes |
03/01/2000 | EP0982849A1 Predistorter |
03/01/2000 | EP0981883A1 Protocol for transceiver initialisation in a discrete multitone (dmt) system |
03/01/2000 | EP0981881A1 Equalising and decoding device for a frequency-selective digital transmission channel |
03/01/2000 | EP0981872A1 Line card with modem interface |
03/01/2000 | EP0981864A1 Integrable radio receiver circuit for frequency-modulated digital signals |
03/01/2000 | EP0772905B1 A direct conversion receiver |
03/01/2000 | CN1246227A Receiver decoder circuitry, and associated method, for decoding channel encoded signal |
02/29/2000 | US6032029 Receiver selecting either a first demodulated signal or a second demodulated signal in accordance with characteristics of a received signal |
02/29/2000 | US6031880 Carrier recovery in communications system |
02/29/2000 | US6031879 Wideband undersampling digital receiver |
02/29/2000 | US6031873 Nested shell mapping |
02/29/2000 | US6031867 Modem with firmware upgrade feature |
02/29/2000 | US6031865 Rapidly decorrelating spreading sequences for DS-CDMA transceivers |
02/29/2000 | US6031862 Ultrawide-band communication system and method |
02/29/2000 | US6031474 Half rate coded modulation schemes for Rayleigh fading channels |
02/29/2000 | US6031431 Methods and apparatus for implementing modulators and programmable filters |
02/29/2000 | US6031419 Demodulator for contactless chip card |
02/29/2000 | US6031418 Method and apparatus for demodulating digital frequency modulation (FM) signals |
02/27/2000 | CA2280585A1 Packet binary convolutional codes |
02/24/2000 | WO2000010301A2 Signalling transmission using phase rotation techniques in a digital communications system |
02/24/2000 | WO2000010272A1 Efficient spectral saving fqpsk and fqam signal transmission and reception systems |
02/24/2000 | WO2000010028A1 Method and system for aiding gps receivers via a cellular or pcs network |
02/24/2000 | WO2000002335A3 Source adaptive digital subscriber line and method |
02/24/2000 | WO1999060988A9 Combination therapy for treatment of fiv infection |
02/24/2000 | DE19837426A1 System for transmission of information symbols via numerous carriers and system for reception of such symbols in digital radio system |
02/24/2000 | DE19836582A1 Correcting carrier wave frequency shift in direct sequence band spread communication system |
02/23/2000 | EP0981222A2 Destination dependent coding for discrete multi-tone modulation |
02/23/2000 | EP0981217A1 Modulating method, modulating device, demodulating method, and demodulating device |
02/23/2000 | EP0980604A2 Method for reducing interference, and synthesizer arrangement |
02/23/2000 | EP0980602A1 Broadband modem transformer hybrid |
02/23/2000 | EP0765559A4 Automatic modulation mode selecting unit and method for modems |
02/23/2000 | CN1245623A Adaptive channel allocation method and apparatus for multi-slot, multi-carrier communication system |
02/23/2000 | CN1245608A Spectrally efficient modulation using overlapped GMSK |
02/23/2000 | CN1245596A Digital continuous phase modulation for DDS-driven phase locked loop |
02/23/2000 | CN1245380A Four-phase shift keying modulated signal receiving assembly |
02/23/2000 | CN1049784C Code division multiple access inbound messaging system utilizing re-use of sequences |
02/22/2000 | US6029052 Multiple-mode direct conversion receiver |
02/22/2000 | US6028902 Clock phase detecting circuit |
02/22/2000 | US6028900 Digital broadcast receiver |
02/22/2000 | US6028895 Distortion corrector for two data flows |
02/22/2000 | US6028894 SIR or SNR measurement apparatus |
02/22/2000 | US6028890 Baud-rate-independent ASVD transmission built around G.729 speech-coding standard |
02/22/2000 | US6028888 Single-channel and multi-channel coherent demodulation devices with no pilot signal, and corresponding receiving system using a plurality of diversity paths |
02/22/2000 | US6028886 Digital communication apparatus |
02/22/2000 | US6028860 Prioritized virtual connection transmissions in a packet to ATM cell cable network |
02/22/2000 | US6028493 Elimination of bandpass filter after quadrature modulator in modulation synthesizer circuit |
02/22/2000 | US6028486 Method and apparatus for reducing power dissipation in multi-carrier amplifiers |
02/22/2000 | US6028475 Method and apparatus for demodulating multi-level QAM signal |
02/22/2000 | CA2160431C Method and apparatus for burst detecting |
02/22/2000 | CA2083725C Multiplexed coded modulation with unequal error protection |
02/17/2000 | WO2000008870A2 Apparatus and method of linearizing a power amplifier in a mobile radio communication system |
02/17/2000 | WO2000008792A2 Frequency shifting using convolution and an nco |
02/17/2000 | WO2000008790A1 Clock generator, clock generating method, and signal receiver |
02/17/2000 | WO2000008774A1 Orthogonal signal transmitter |
02/17/2000 | WO2000008764A1 Digital reception with radio frequency sampling |
02/17/2000 | WO1999065182A3 Method of selecting synchronization pattern from a test signal |
02/17/2000 | WO1999062214A3 Device for modulation and demodulation in a multi-carrier system |
02/17/2000 | WO1999056442A3 Transmitter/receiver for gmsk and offset-qam |
02/17/2000 | CA2339798A1 Digital reception with radio frequency sampling |
02/16/2000 | EP0980169A2 Information transmission by means of differential Manchester coding and phase shift keying |
02/16/2000 | EP0980162A1 Method and apparatus for seamlessly changing the radio interface data rate in circuit switched transmission |
02/16/2000 | EP0980161A1 Digital data receiver |
02/16/2000 | EP0980157A2 Frame synchronisation in a DAB receiver |
02/16/2000 | EP0980151A1 Method for measuring attenuation in digital transmission lines |
02/16/2000 | EP0979567A1 Multicarrier receiver and method for use in dab receiver |
02/16/2000 | EP0979560A2 Method, system, and computer program product for spread spectrum communication using circular waveform shift-keying |
02/16/2000 | EP0979550A1 Maximum likelihood detection of mpsk bursts with inserted reference symbols |
02/16/2000 | CN2364633Y Power supply uninterrupted cable modem |
02/16/2000 | CN1244752A Digit broadcast receiving apparatus |
02/15/2000 | US6026419 Single tone signal detector |
02/15/2000 | US6026131 Automatic gain control systems |
02/15/2000 | US6026128 Frequency- and phase regulator device for VSB receivers |
02/15/2000 | US6026125 Waveform adaptive ultra-wideband transmitter |
02/15/2000 | US6026123 Digital transmission system with high immunity to dynamic linear distortion |
02/15/2000 | US6026122 Process and system for transferring vector signal with precoding for signal power reduction |
02/15/2000 | US6026120 System and method for using circular constellations with uncoded modulation |
02/15/2000 | US6026117 Method and apparatus for generating complex four-phase sequences for a CDMA communication system |
02/15/2000 | US6025946 Transmission device and transmission method |
02/15/2000 | US6025758 Method and apparatus for performing digital data signal modulation |
02/15/2000 | CA2192294C Frequency shift key modulating oscillator |
02/15/2000 | CA2039708C Method of generating quality factors for binary digits obtained in the viterbi-analysis of a signal |
02/10/2000 | WO2000007323A1 Forward error correcting system with encoders configured in parallel and/or series |
02/10/2000 | WO2000007314A1 Method and apparatus for registering remote service units in a multipoint communication system |
02/10/2000 | WO2000007302A1 Interference detection and avoidance technique |
02/10/2000 | WO2000007301A2 Hardware-efficient transceiver with delta-sigma digital-to-analog converter |
02/10/2000 | DE19835952A1 Verfahren und System zur Informationsübertragung mittels Phasenmodulation Method and system for transmitting information by phase modulation |
02/09/2000 | EP0978974A2 DAB receiver with detection of the transmission mode |
02/09/2000 | EP0978973A1 Estimation of frequency offset for the demodulation of a phase-modulated packet of symbols |
02/09/2000 | EP0978972A2 Clock recovery circuit of demodulator |
02/09/2000 | EP0978971A1 QPSK modulation signal receiving unit |
02/09/2000 | EP0978969A2 Method and device for demodulating a received signal including a pilot signal |
02/09/2000 | CN1244323A Reduction of peak to average power ratio in multicarrier modulation system |
02/09/2000 | CN1244322A Non-coherent six-port receiver |
02/09/2000 | CN1244313A Method and apparatus for automatic gain control in digital receiver |
02/09/2000 | CN1244072A Filter arrangement structure |
02/08/2000 | US6023493 Method and apparatus for synchronizing a data communication system to a periodic digital impairment |