Patents for H04L 27 - Modulated-carrier systems (89,721) |
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08/31/1999 | US5946045 System for forming program guides and video data for storage and transmission in different coding formats |
08/31/1999 | US5945885 Digital baseband modulator adaptable to different modulation types |
08/31/1999 | US5945875 π/n shift phase-shift keying demodulator |
08/31/1999 | US5944850 Digital transmission system and method comprising a punctured product code combined with a quadrature amplitude modulation |
08/26/1999 | WO1999043132A2 A method and a circuit for am demodulation |
08/26/1999 | WO1999043123A1 Improvements in, or relating to, vdsl |
08/26/1999 | WO1999043090A1 Quadrature-free rf receiver for directly receiving angle modulated signal |
08/26/1999 | WO1999043080A1 Direct digital synthesis of precise, stable angle modulated rf signal |
08/26/1999 | WO1999042948A1 Data carrier for contactless reception of data and energy and method for operating the same |
08/26/1999 | CA2320699A1 A method and a circuit for am demodulation |
08/26/1999 | CA2260528A1 Channel tracking in a mobile receiver |
08/25/1999 | EP0938216A2 Apparatus for receiving QAM or DPSK signals |
08/25/1999 | EP0938203A1 Receiver and receiving circuit |
08/25/1999 | EP0938193A1 Header structure for TDD systems |
08/25/1999 | EP0937975A2 Microtome |
08/25/1999 | EP0937366A2 Method of combining several signals, and base station |
08/25/1999 | EP0937339A1 Calibration of n-port receiver |
08/25/1999 | EP0937332A1 Frequency modulator |
08/25/1999 | EP0697153B1 Compensation for local oscillator errors in an ofdm receiver |
08/25/1999 | EP0676096A4 Demodulator logic unit adaptable to multiple data protocols. |
08/25/1999 | EP0628229B1 Psk receiver |
08/25/1999 | CN1227022A Method and apparatus for superframe bit allocation in discrete multitone system |
08/25/1999 | CN1227017A Wireless receiver with offset compensation using flash-ADC |
08/24/1999 | US5943380 Robust phase estimator and recoverer for digital signals affected in particular by phase jitter |
08/24/1999 | US5943375 Method to indicate synchronization lock of a remote station with a base station |
08/24/1999 | US5943372 Orthogonal polarization and time varying offsetting of signals for digital data transmission or reception |
08/24/1999 | US5943370 Direct conversion receiver |
08/24/1999 | US5943369 Timing recovery system for a digital signal processor |
08/24/1999 | US5943361 In a spread spectrum communication system |
08/24/1999 | US5943345 AM multiplexing broadcast apparatus |
08/24/1999 | US5942955 Quasi-GMSK modulator |
08/24/1999 | CA2171418C Orthogonal frequency division multiplexing transmission system and transmitter and receiver therefor |
08/24/1999 | CA2117797C Method and apparatus for receiving electromagnetic radiation within a frequency band |
08/19/1999 | WO1999041887A1 Multi-dimensional coding, and method and device for the code |
08/19/1999 | WO1999041886A1 Method and radio station for data transmission |
08/19/1999 | WO1999041871A1 Multiple access method and system |
08/19/1999 | WO1999041865A1 Modulating method, modulating device, demodulating method, and demodulating device |
08/19/1999 | WO1999041851A1 Radio receiver that digitizes a received signal at a plurality of digitization frequencies |
08/19/1999 | WO1999041838A1 Oscillation circuit scheme, modulation scheme, demodulation scheme, and multilevel qam modulation/demodulation system |
08/19/1999 | DE19805546A1 Verfahren und Funkstation zur Datenübertragung Procedures and radio station for data transmission |
08/19/1999 | CA2321748A1 Multiple access method and system |
08/18/1999 | EP0936784A2 Pulse shaping for the control of the amplitude variation of PSK signals |
08/18/1999 | EP0936744A1 Carrier generating device for a digital demodulator of MPX signals |
08/18/1999 | EP0935440A1 Method for wireless communication transfer with an implanted medical device |
08/18/1999 | CN1226111A Testing system of voice-band data transmission interface on exchange |
08/17/1999 | US5940744 Local frequency correction |
08/17/1999 | US5940457 Millimeter-wave (MMW) synthesizer with FSK modulation transmitter |
08/17/1999 | US5940453 For performance improvement of a digital wireless receiver |
08/17/1999 | US5940451 Automatic gain control in quadrature phase shift keying demodulator |
08/17/1999 | US5940450 Carrier recovery method and apparatus |
08/17/1999 | US5940447 Wireless powered communication device using power signal sampling and method |
08/17/1999 | US5940446 Maximum likelihood detection of MPSK bursts with inserted reference symbols |
08/17/1999 | US5940440 Generalized multimodulus technique for blind equalization |
08/17/1999 | US5940438 For use in the modulation and demodulation of a signal |
08/17/1999 | US5940436 Circuit for allocating a transmission channel on the electric network |
08/17/1999 | US5940434 Walsh-QPSK chip modulation apparatus for generating signal waveform in a direct sequence spread spectrum communication system |
08/17/1999 | US5940406 Method of digital frequency correction in multicarrier transmission processes |
08/17/1999 | US5940365 AM data multiplexing modulation apparatus |
08/17/1999 | US5938787 Communications systems and methods employing code rate partitioning with nonorthogonal modulation |
08/17/1999 | CA2125260C Automatic frequency control apparatus and method therefor |
08/17/1999 | CA2124622C Digital communications system with symbol multiplexers |
08/17/1999 | CA2044252C Digital demodulator |
08/12/1999 | WO1999040705A1 Method for transmitting digitally coded radio signals |
08/12/1999 | WO1999040704A1 Radio frequency identification interrogator signal processing system for reading moving transponders |
08/12/1999 | WO1999040698A1 Method and apparatus for joint detection of data in a direct sequence spread spectrum communications system |
08/12/1999 | WO1999040685A2 Method for processing telephone signals delivered by an analog telephone terminal |
08/12/1999 | WO1999040648A1 Downlink broadcasting by sequential transmissions from a communication station having an antenna array |
08/12/1999 | WO1999029078A3 Improvements in, or relating to, data scramblers |
08/12/1999 | WO1999027689A3 Demodulation unit and method of demodulating a quadrature signal |
08/11/1999 | EP0935339A1 Versatile signal generator |
08/11/1999 | EP0934676A1 Cable network using atm cells for prioritized packet transmission |
08/11/1999 | EP0934652A2 Reception of modulated carriers having asymmetrical sidebands |
08/11/1999 | EP0934642A1 Simultaneous decoding and phase synchronisation using the criterion of maximum likelihood |
08/11/1999 | EP0934638A2 Method and apparatus for superframe bit allocation in a discrete multitone (dmt) system |
08/11/1999 | EP0688487A4 Method and apparatus for encoding/decoding broadcast or recorded segments and monitoring audience exposure thereto |
08/10/1999 | US5937016 Synchronization method in Viterbi decoder |
08/10/1999 | US5937015 Interference mitigation by joint decoding of overlapped signals |
08/10/1999 | US5937013 Subharmonic quadrature sampling receiver and design |
08/10/1999 | US5937010 Sample interpolator and method of generating additional samples of a sampled waveform using a programmable sample divider |
08/10/1999 | US5937009 Sub-band echo canceller using optimum wavelet packets and cross-band cancellation |
08/10/1999 | US5937008 Method and system for controlling the minimal distance between successive errors in digital radio transmission |
08/10/1999 | US5936997 Spread spectrum communication method |
08/10/1999 | US5936961 Signalling packet for communication system with reference modulated in accordance with a time-dependent law |
08/10/1999 | US5936546 Variable format radio pager having power saving mode during binary code transmission |
08/10/1999 | US5936472 Oscillating circuit with limitation function of oscillation frequency |
08/10/1999 | US5936462 AM demodulator using limiter amplifier RSSI output as baseband signal |
08/10/1999 | CA2121661C Apparatus and method for converting soft symbols into soft bits |
08/10/1999 | CA2102108C Phase compensation method and apparatus |
08/10/1999 | CA2086279C A differential detection demodulator |
08/05/1999 | WO1999039486A1 Digital demodulator |
08/05/1999 | WO1999039485A1 Receiver |
08/05/1999 | WO1999039484A2 Transmission method and radio system |
08/05/1999 | WO1999039473A1 Frequency hopping adaptation |
08/05/1999 | WO1999039471A1 Digital data receiver |
08/05/1999 | WO1999039464A2 A system and a method for information security in optical communication networks |
08/05/1999 | WO1999039444A1 METHOD AND APPARATUS FOR PERFORMING TARGETED INTERFERENCE SUPPRESSION _____________________________________________________________è |
08/05/1999 | WO1999020027A3 Splitterless multicarrier modem |
08/05/1999 | DE19804025A1 Data exchange method for water industry |
08/04/1999 | EP0933904A2 Data transmission using a combination of modulation types |
08/04/1999 | EP0933903A2 Suppression of phase noise in multicarrier reception |