Patents for H04L 27 - Modulated-carrier systems (89,721) |
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07/02/1998 | CA2274715A1 Method and apparatus for variably allocating upstream and downstream communication spectra |
07/02/1998 | CA2274522A1 Adaptive predistortion system |
07/01/1998 | EP0851692A2 Dual-tone multi-frequency signal transfer protocol |
07/01/1998 | EP0851642A2 Multicarrier receiver with compensation for frequency offset and for frequency-dependent distortion |
07/01/1998 | EP0851641A2 Communication method and receiving apparatus for OFDM systems |
07/01/1998 | EP0851640A2 Correction of DC and phase offsets in PSK receivers |
07/01/1998 | EP0851639A2 QPSK modulated backscatter system |
07/01/1998 | EP0851638A2 Communication method and receiving apparatus for OFDM system |
07/01/1998 | EP0851622A1 Coded modulation for constellations with fewer symbols than are required by the coding scheme |
07/01/1998 | EP0851602A2 Differential phase shift keying spread spectrum packet signal detection |
07/01/1998 | EP0851579A2 A digital filter |
07/01/1998 | EP0851573A1 Device for estimating the frequency offset between a frequency carrier of a digital signal and the frequency of a local oscillator of a receiver, and corresponding receiver |
07/01/1998 | EP0850527A1 Adaptive multimode equaliser |
07/01/1998 | EP0850511A1 Transmission process in which a conversion oscillator signal is synthesised by means of a fractional n-phase-shift control loop |
07/01/1998 | CN1186583A Method and circuit arrangement for improving carrier separation for trasmission of OFDM signals |
07/01/1998 | CN1186389A SIR measurement apparatus |
06/30/1998 | US5774512 Higher order digital phase loop filter |
06/30/1998 | US5774508 Data synchronizer phase detector and method of operation thereof |
06/30/1998 | US5774506 Data receiving apparatus |
06/30/1998 | US5774503 Demodulation method and demodulation device |
06/30/1998 | US5774502 Fully integrated data receiver and method for receiving on/off keyed AM/PDSK modulated signals |
06/30/1998 | US5774500 Multi-channel trellis shaper |
06/30/1998 | US5774492 Low-complexity direct conversion receiver for delay-and-correlate transmitted reference signaling |
06/30/1998 | US5774450 Method of transmitting orthogonal frequency division multiplexing signal and receiver thereof |
06/30/1998 | US5774375 Method and apparatus for the correction of signal-pairs |
06/30/1998 | CA2219266A1 Qpsk modulated backscatter system |
06/30/1998 | CA2109412C Method and apparatus for estimating signal weighting parameters in a receiver |
06/25/1998 | WO1998027701A1 Spectrally efficient modulation using overlapped gmsk |
06/25/1998 | WO1998027700A1 Rate 2/3 mask trellis coded modulation using rate 1/2 convolutional encoder |
06/25/1998 | WO1998027699A1 Multilevel coding |
06/25/1998 | WO1998027682A1 Receiver decoder circuitry, and associated method, for decoding a channel encoded signal |
06/25/1998 | CA2275579A1 Spectrally efficient modulation using overlapped gmsk |
06/25/1998 | CA2275185A1 Multilevel coding |
06/24/1998 | EP0849919A2 Shaping functions for multicarrier modulation systems |
06/24/1998 | EP0848877A1 Process for transferring digital data via interference-affected radio channels and device for receiving digital data transmitted via interference-affected radio channels |
06/24/1998 | EP0848870A1 Equalizer with extended channel estimation for a receiver in a digital transmission system |
06/24/1998 | CN1185709A Communication method, base station and terminal equipment |
06/24/1998 | CN1185691A Code multi-way multiplex transmission device |
06/23/1998 | USRE35829 Binary phase shift keying modulation system and/or frequency multiplier |
06/23/1998 | US5771442 Dual mode transmitter |
06/23/1998 | US5771263 Communication system control method and communication system using the method |
06/23/1998 | US5771224 Orthogonal frequency division multiplexing transmission system and transmitter and receiver therefor |
06/23/1998 | US5771223 Method of receiving orthogonal frequency division multiplexing signal and receiver thereof |
06/23/1998 | US5769876 Method and apparatus for telemetering data bidirectionally between two devices, one device incorporating a coarse phase adjustment and the other device incorporating a fine phase adjustment |
06/23/1998 | CA2099394C Dqpsk delay detection circuit |
06/23/1998 | CA2074974C Demodulator for digitally modulated wave |
06/18/1998 | WO1998026546A1 Method for digital transmission or radio broadcast |
06/18/1998 | WO1998026545A2 A method and apparatus for improved phase shift keyed (psk) signal demodulation |
06/18/1998 | WO1998019465A3 Method of combining several signals, and base station |
06/18/1998 | WO1998010550A3 Improvements in, or relating to, multi-carrier transmission systems |
06/18/1998 | WO1998009385A3 Spatio-temporal processing for communication |
06/18/1998 | DE19754203A1 Frequenzerzeugungsschaltung und Betriebsweise Frequency generation circuit and operation |
06/17/1998 | EP0848524A1 Punctured, trellis coded QAM, with interative decoding |
06/17/1998 | EP0848523A2 PSK Demodulator using the CORDIC algorithm |
06/17/1998 | EP0848522A2 A generalized multimodulus technique for blind equalization |
06/17/1998 | EP0848501A1 Digital transmission system and method comprising a product code combined with multidimensional modulation |
06/17/1998 | EP0847643A1 Method for simplifying the demodulation in multiple carrier transmission system |
06/17/1998 | EP0847642A1 Am compatible digital waveform demodulation using a dual fft |
06/17/1998 | EP0847638A1 Audio file distribution and production system |
06/17/1998 | EP0847619A1 Circuit arrangement comprising a cartesian amplifier |
06/17/1998 | EP0516741B1 Hybrid analog/digital signal processing |
06/17/1998 | CN1185062A Multivalued FSK demodulation window comparator |
06/16/1998 | US5768326 For use in a digital broadcasting receiver |
06/16/1998 | US5768323 In a telecommunications device |
06/16/1998 | US5768321 Automatic frequency control unit which detects a frame pattern in a phase modulation signal |
06/16/1998 | US5768319 GPS data collection in high noise-to-signal ratio environments |
06/16/1998 | US5768318 Signal processor |
06/16/1998 | US5768317 Equalization filter compensating for distortion in a surface acoustic wave device |
06/16/1998 | US5768310 Data transmission circuit for an electricity mains network having a low reception threshold |
06/16/1998 | US5768291 Method and apparatus for error mitigating a received communication signal |
06/16/1998 | US5768269 Apparatus and method for establishing frame synchronization in distributed digital data communication systems |
06/16/1998 | US5768262 Methods for performing intelligent network services with an ISDN network terminator located at a subscriber's premise |
06/16/1998 | US5767750 Modulator |
06/16/1998 | US5767738 Apparatus and method for demodulating a modulated signal |
06/16/1998 | CA2113330C Multicarrier modulation transmission system with variable delay |
06/12/1998 | CA2219392A1 A generalized multimodulus technique for blind equalization |
06/11/1998 | WO1998025354A1 Method for correcting errors from a jamming signal in a frequency hopped spread spectrum communication system |
06/11/1998 | WO1998025338A1 Method and apparatus for demodulating a frequency shift keyed signal |
06/10/1998 | EP0847170A1 Frequency shift key modulating oscillator |
06/10/1998 | EP0847169A2 Communication signal processors and methods compatible with a variety of modulation types |
06/10/1998 | EP0847144A2 Receiver with low stand by current |
06/10/1998 | EP0847143A1 Programmable frequency synthesizer having low phase noise sensitivity |
06/10/1998 | EP0846387A1 Trellis coded qam using rate compatible, punctured, convolutional codes |
06/10/1998 | EP0846383A1 Timing recovery and frame synchronization in a cellular communications system |
06/10/1998 | CN1184571A Apparatus for multi-rate simulcast communications |
06/09/1998 | US5765097 Shared hybrid fiber-coax network having reduced ingress noise in the upstream channel transmitted via a repeater |
06/09/1998 | US5764707 Method and apparatus for improved phase shift keyed (PSK) signal demodulation |
06/09/1998 | US5764706 AM compatible digital waveform frame timing recovery and frame synchronous power measurement |
06/09/1998 | US5764705 Adaptive phase shift adjuster for resonator |
06/09/1998 | US5764704 DSP implementation of a cellular base station receiver |
06/09/1998 | US5764701 VSB modulator |
06/09/1998 | US5764700 Digital radio link system and radio link terminal |
06/09/1998 | US5764692 Dual mode radiotelephone modulator |
06/09/1998 | US5764628 Dual port interface for communication between a voice-over-data system and a conventional voice system |
06/09/1998 | US5764627 Communication system |
06/09/1998 | US5764171 Quadrature signal conversion device |
06/09/1998 | US5764113 Re-sampling circuit and modulator using same |
06/09/1998 | US5764094 Level shift circuit for analog signal and signal waveform generator including the same |
06/09/1998 | CA2124709C Reduced speed equalizer |
06/04/1998 | WO1998024258A2 Adaptive channel allocation method and apparatus for multi-slot, multi-carrier communication system |