| Patents for H04L 27 - Modulated-carrier systems (89,721) |
|---|
| 08/03/1995 | CA2159225A1 A demodulator for frequency shift keyed signals |
| 08/02/1995 | EP0665654A2 Signal reception system comprising an adaptive filter |
| 08/01/1995 | US5438692 Direct conversion receiver |
| 08/01/1995 | US5438594 Device for demodulating digital signals modulated by an alternating modulation constellation technique |
| 08/01/1995 | US5438592 PI/4-DQPSK phase state encoder/decoder |
| 08/01/1995 | US5438591 Quadrature amplitude modulation type digital radio communication device and method for preventing abnormal synchronization in demodulation system |
| 08/01/1995 | US5438590 Transmitting and receiving apparatus and method including punctured convolutional encoding and decoding |
| 08/01/1995 | US5438301 Modem having a phase corrector and a voltage controlled oscillator implemented using a multi-stage ring oscillator |
| 08/01/1995 | CA2029052C Tone spacing and power level monitor for fsk lightwave systems |
| 07/27/1995 | WO1995020284A1 I/q quadraphase modulator circuit |
| 07/27/1995 | WO1995020272A1 Adaptive coherent signal detection method and apparatus |
| 07/26/1995 | EP0664623A2 Apparatus and method for geometrically modulating electromagnetic radiation and a receiver for decoding geometrically modulated signals |
| 07/26/1995 | EP0664187A1 Grinding tape and method of manufacturing the same |
| 07/25/1995 | US5436942 Method of equalizing digitally encoded signals transmitted in a plurality of non-contiguous time slots |
| 07/25/1995 | US5436932 For performing amplitude-phase demodulation and viterbi decoding |
| 07/25/1995 | US5436931 FSK receiver |
| 07/25/1995 | US5436930 Simultaneous analog and digital communications with a selection of different signal point constellations based on signal energy |
| 07/25/1995 | US5436904 Mobile communication system |
| 07/25/1995 | US5436599 Method and apparatus for digital modulation using pulse addition |
| 07/25/1995 | US5436589 Demodulator for frequency shift keyed signals |
| 07/25/1995 | CA2140402A1 Apparatus and method for geometrically modulating electromagnetic radiation and a receiver for decoding geometrically modulated signals |
| 07/25/1995 | CA1336445C Fsk discriminator |
| 07/20/1995 | WO1995019676A1 Higher order digital phase loop filter |
| 07/20/1995 | WO1995019671A1 Method and arrangement for synchronization in ofdm modulation |
| 07/20/1995 | WO1995019666A1 Satellite receiver system having doppler frequency shift tracking |
| 07/20/1995 | WO1995016314A3 A digital communication system and a receiver for use in such a system |
| 07/20/1995 | DE19500160A1 Empfänger mit Sigma-Delta Analog-Digital-Wandlung für in Fernsehsignalen eingebettete digitale Signale Receiver with sigma-delta analog-to-digital conversion for embedded in television signals digital signals |
| 07/19/1995 | EP0663776A2 Method for communicating block coded digital data with associated synchronization/control data |
| 07/19/1995 | EP0663775A2 Method and apparatus for communicating multilevel modulated data using concatenated coding |
| 07/19/1995 | EP0663747A1 Self-tuning receiver/decoder for frequency shift keying RF data transmission |
| 07/19/1995 | EP0663085A1 Method and apparatus for reduced-complexity viterbi-type sequence detectors |
| 07/19/1995 | EP0497801B1 A phase locked loop for producing a reference carrier for a coherent detector |
| 07/18/1995 | US5434889 Receiver comprising an arrangement for estimating a frequency deviation |
| 07/18/1995 | US5434888 FSK modulating apparatus |
| 07/18/1995 | US5434887 Quadrature modulation circuit for use in a radio transmitter |
| 07/18/1995 | US5434884 Apparatus and method for equalizing for amplitude jitter |
| 07/13/1995 | DE4244835A1 Telefax or colour television image coding system |
| 07/12/1995 | EP0662270A1 Method for synchronising transmitter frequencies in common wave digital audio broadcast |
| 07/11/1995 | US5432819 DPSK communications with Doppler compensation |
| 07/11/1995 | US5432786 Modem for modulating and demodulating main signal and secondary signal with clock synchronized system and transforming secondary signal between start-stop system and clock-synchronized system |
| 07/11/1995 | US5432697 Technique for controlling the symbolic dynamics of chaotic systems to generate digital communications waveforms |
| 07/11/1995 | US5432521 Satellite receiver system having doppler frequency shift tracking |
| 07/11/1995 | US5432483 Digital quadrature modulator and method for testing the same |
| 07/11/1995 | CA2047284C Demodulator and polarization diversity receiver for coherent optical communication provided with the demodulator |
| 07/06/1995 | WO1995018509A1 Polarity selection circuit for bi-phase stable fpll |
| 07/06/1995 | WO1995018508A1 Circuit for the acquisition of a carrier signal by applying a substitute pilot to a synchronous demodulator |
| 07/06/1995 | WO1995018494A1 Data frame format for variable size data constellations |
| 07/06/1995 | WO1995018489A1 Convolutional interleaver and deinterleaver |
| 07/06/1995 | WO1995018486A1 A wireless digital synchronized diversity receiver |
| 07/06/1995 | DE4418637C1 Carrier signal recovery circuit for radio receiver |
| 07/05/1995 | EP0661853A1 Method of phase demodulation, notably for automatic tolls |
| 07/05/1995 | EP0661840A2 Viterbi decoder using decreasing length tracebacks |
| 07/05/1995 | EP0661835A2 Digital radio communication system |
| 07/05/1995 | EP0661833A1 Baseband amplitude/frequency characteristic estimator |
| 07/05/1995 | EP0661801A1 Quadrature modulator with adaptive suppression of carrier leakage |
| 07/05/1995 | EP0660978A1 A data decoder and method for use therein using a dynamically indexed channel state metric |
| 07/05/1995 | EP0603373A4 Improved trellis coding technique to increase adjacent channel interference protection ratio in land mobile radio systems under peak power constraints. |
| 07/05/1995 | CN1104820A Detectors |
| 07/04/1995 | US5430770 Method and apparatus for composite signal separation and PSK/AM/FM demodulation |
| 07/04/1995 | US5430492 Method of transmitting digital HDTV signals |
| 07/04/1995 | US5430415 Modulator capable of decreasing consumption of electric power |
| 07/04/1995 | CA2049501C Method for channel adaptive detecting/equalizing |
| 07/01/1995 | CA2139218A1 Multiphase signal amplitude-frequency characteristic basebaud estimator |
| 06/29/1995 | WO1995017786A1 An apparatus and method for digitally processing signals in a radio frequency communication system |
| 06/29/1995 | WO1995017785A1 Direct conversion cdma receiver |
| 06/29/1995 | CA2139066A1 Method and apparatus for signal decoder using instantaneous magnitude and phase detection |
| 06/28/1995 | EP0660561A1 Circuit for recognition of a sequence of words in a modem |
| 06/28/1995 | EP0660559A1 Multicarrier frequency-hopping communication system |
| 06/28/1995 | EP0660533A2 Method and apparatus for a reduced iteration decoder |
| 06/27/1995 | US5428646 Device and method for frame synchronization in a multi-level trellis coding system |
| 06/27/1995 | US5428644 Adaptive detection method and detector for quantized signals |
| 06/27/1995 | US5428643 Method of, and transmitter for, transmitting a digital signal |
| 06/27/1995 | US5428641 Device and method for utilizing zero-padding constellation switching with frame mapping |
| 06/27/1995 | US5428631 Method and apparatus for resolving phase ambiguities in trellis coded modulated data |
| 06/27/1995 | US5428320 Biphase modulator and method without matching elements |
| 06/22/1995 | WO1995017052A1 Adaptive equalizer |
| 06/22/1995 | WO1995017049A1 Method of mitigating the effects of clipping or quantization in the d/a converter of the transmit path of an echo canceller |
| 06/22/1995 | WO1995017046A1 An improved discrete multitone echo canceler |
| 06/22/1995 | WO1995017039A1 Narrow band, arbitrary hf modulation and noise generator |
| 06/22/1995 | DE4445823A1 Transmitter for mobile satellite communications data station |
| 06/21/1995 | EP0659000A2 Threshold setting and decision circuit |
| 06/21/1995 | EP0658995A1 CMOS technology high speed digital signal transceiver |
| 06/21/1995 | EP0658993A1 Method and apparatus for false-lock detection in carrier recovery and for SNR estimation (Eb/No) of a digital communication link |
| 06/21/1995 | EP0658295A1 Digital signal transmission system using frequency division multiplex |
| 06/20/1995 | US5426671 Transmission system comprising receiver with improved timing means |
| 06/20/1995 | US5426669 Quadrature demodulator |
| 06/15/1995 | WO1995016319A1 Method and apparatus for creating a composite waveform |
| 06/15/1995 | WO1995016314A2 A digital communication system and a receiver for use in such a system |
| 06/15/1995 | WO1995016304A1 Phase/frequency modulator |
| 06/14/1995 | CN1103753A Digital demodulator |
| 06/13/1995 | US5425058 MSK phase acquisition and tracking method |
| 06/13/1995 | US5425057 Phase demodulation method and apparatus using asynchronous sampling pulses |
| 06/13/1995 | US5425055 Digital radio modulator |
| 06/13/1995 | US5425050 Television transmission system using spread spectrum and orthogonal frequency-division multiplex |
| 06/13/1995 | US5424688 Frequency synthesizer apparatus incorporating phase modulation tracking means |
| 06/13/1995 | CA2028820C Line signal deterioration removing system |
| 06/08/1995 | WO1995015640A1 Method and apparatus for locating and tracking a qpsk carrier |
| 06/08/1995 | WO1995015639A1 Method and apparatus for multi-phase component downconversion |
| 06/08/1995 | WO1995015638A1 Differential encoder and decoder for pragmatic approach trellis-coded mdp-8 modulation |
| 06/08/1995 | CA2177569A1 Method and apparatus for locating and tracking a qpsk carrier |