| Patents for H04L 27 - Modulated-carrier systems (89,721) |
|---|
| 05/26/1993 | EP0348402B1 Timing error detector |
| 05/26/1993 | CN1072549A Carrier modulated narrow pulse signal processor |
| 05/26/1993 | CN1072548A Coding method for broadcast transmissions |
| 05/25/1993 | US5214693 Multi-frequency signal receiver and a method of detecting the multi-frequency signal |
| 05/25/1993 | US5214675 System and method for calculating channel gain and noise variance of a communication channel |
| 05/25/1993 | US5214674 Method and apparatus for carrier synchronization acquisition in a digital burst mode communication system |
| 05/25/1993 | US5214672 Trellis precoding for fractional bits/baud |
| 05/25/1993 | US5214656 Multiplexed coded modulation with unequal error protection |
| 05/25/1993 | US5214501 Method and apparatus for the transmission and reception of a multicarrier high definition television signal |
| 05/25/1993 | US5214397 Modulator using low-pass filter as delay element |
| 05/25/1993 | US5214396 Method and apparatus for providing a biphase modulated signal having flat envelope characteristics without a direct current component |
| 05/25/1993 | US5214391 Demodulation apparatus having multipath detector for selecting a first or second demodulator |
| 05/25/1993 | US5214390 Method and apparatus for partial response demodulation |
| 05/25/1993 | CA1318360C Apparatus for cancelling carrier phase jitters |
| 05/19/1993 | EP0542633A1 Modulator, especially for digital cellular telephone system |
| 05/19/1993 | CN1072302A Method and apparatus for resolving phase ambiguities in trellis coded modulated data |
| 05/19/1993 | CN1072299A Integrated cellular communications system |
| 05/18/1993 | US5212826 Apparatus and method of dc offset correction for a receiver |
| 05/18/1993 | US5212814 Automatic output power controller |
| 05/18/1993 | US5212579 Method and apparatus for communicating amplitude modulated signals over an optical communication path |
| 05/13/1993 | WO1993009619A1 Peak to average power ratio reduction methodology for qam communications systems |
| 05/13/1993 | WO1993009617A1 Multichannel tdm communication system slot phase correction |
| 05/13/1993 | WO1993009616A1 Coding method for broadcast transmissions |
| 05/12/1993 | EP0541217A1 Trellis coding for fractional bits |
| 05/12/1993 | EP0541031A1 Signal transmitting and receiving apparatus |
| 05/12/1993 | EP0540764A1 Demodulator unit arranged to check for system failures during operation |
| 05/12/1993 | EP0540664A1 Sawc phase-detection method and apparatus |
| 05/12/1993 | CN1072048A Communication signal having time domain pilot component |
| 05/11/1993 | US5210775 π/4 shift QPSK modulator and communication apparatus |
| 05/05/1993 | EP0540232A2 Coded modulation with unequal error protection |
| 05/05/1993 | EP0540231A2 Coded modulation with unequal error protection |
| 05/05/1993 | EP0540188A1 Spectrally efficient broadband transmission system |
| 05/05/1993 | EP0540158A2 Apparatus for generating a sinusoidal output signal |
| 05/05/1993 | EP0532507A4 Cable television radio frequency return method |
| 05/05/1993 | CN1020532C Method of controlling frequency of coherent radio receiver and apparatus for carrying out method |
| 05/05/1993 | CN1020531C Method of rapidly controlling frequency of coherent radio receiver and apparatus for carrying out method |
| 05/04/1993 | US5208836 Method for bit detection at the receiver end of differentially coded binary or quaternary PSK signals in differential-coherent demodulation |
| 05/04/1993 | US5208835 Automatic frequency control system and method for frequency-shift-key data transmission systems |
| 05/04/1993 | US5208833 Multi-level symbol synchronizer |
| 05/04/1993 | US5208832 Methods and apparatus for detecting repetitive sequences |
| 05/04/1993 | US5208829 Communication satellite system having an increased power output density per unit of bandwidth |
| 04/29/1993 | WO1993009622A1 Communication signal having a time domain pilot component |
| 04/28/1993 | EP0538870A2 Digital modulator with digital power control circuit |
| 04/28/1993 | EP0538737A1 False-lock detection and coherent demodulation of digital date |
| 04/28/1993 | EP0538644A2 Optical data transmission with FSK |
| 04/28/1993 | EP0538456A1 Receiver with signal classifier |
| 04/28/1993 | EP0538448A1 Superframes. |
| 04/28/1993 | EP0532503A4 Cable television radio frequency subscriber data transmission apparatus and calibration method |
| 04/28/1993 | EP0296175B1 Method and installation for digital communication, particularly between and toward moving vehicles |
| 04/28/1993 | CN1071540A Intermittent operation receiver |
| 04/27/1993 | US5206887 Unique word detection apparatus |
| 04/27/1993 | US5206886 Method and apparatus for correcting for clock and carrier frequency offset, and phase jitter in mulicarrier modems |
| 04/27/1993 | US5205294 Apparatus and methodology for digital telemetry of biomedical signals |
| 04/22/1993 | WO1993008637A1 System and method for calculating a state transition metric in a viterbi equalizer |
| 04/21/1993 | EP0537706A2 Method and circuit for detecting burst signal |
| 04/21/1993 | EP0537587A2 Method for the determination of the coefficients of an equalizer for QAM transmission |
| 04/20/1993 | US5204977 Apparatus and method of automatic gain control in a receiver |
| 04/20/1993 | US5204881 System for set-up of transmitters in high capacity digital radio links |
| 04/20/1993 | US5204879 High speed data detection and clock recovery in a received multi-level data signal |
| 04/20/1993 | US5204878 Method of effecting channel estimation for a fading channel when transmitting symbol sequences |
| 04/20/1993 | US5204642 Frequency controlled recursive oscillator having sinusoidal output |
| 04/18/1993 | CA2079502A1 Spectrally efficient broadband transmission system |
| 04/14/1993 | EP0536948A2 Multidimensional trellis-coded modulation for fading channels |
| 04/14/1993 | EP0536687A2 Method and apparatus for demodulation with adaptive phase control in quasicoherent detection |
| 04/14/1993 | EP0536390A1 Data bit to constellation symbol mapper. |
| 04/14/1993 | EP0536334A1 System and method for generating signal waveforms in a cdma cellular telephone system |
| 04/13/1993 | US5203030 Satellite transmission capturing method for gps receiver |
| 04/13/1993 | US5202905 Moden signal detecting system for adaptive differential PCM CODEC |
| 04/13/1993 | US5202902 Carrier recovery method for modulation having a large number of states, and apparatus for implementing the method |
| 04/13/1993 | US5202901 Digital discriminator for pulse shaped π/4 shifted differentially encoded quadrature phase shift keying |
| 04/13/1993 | US5202644 Receiver apparatus |
| 04/13/1993 | US5202643 Demodulator for demodulating a π/4-shift DQPSK signal |
| 04/13/1993 | CA1316268C Programmable memory for an encoding system |
| 04/07/1993 | EP0535880A2 Carrier recovery for QPSK |
| 04/07/1993 | EP0535669A1 Burst signal transmitter |
| 04/07/1993 | EP0535638A2 Phase divider for complex signals |
| 04/07/1993 | EP0535494A2 Optical homodyne receiver for PSK signals |
| 04/06/1993 | US5201060 Baseband signal communication apparatus |
| 04/06/1993 | US5200978 Process for actuation of multi-level digital modulation by a digital signal processor |
| 04/06/1993 | US5200977 Terminal unit apparatus for time division multiplexing access communications system |
| 04/06/1993 | US5200976 Synchronizing system |
| 04/01/1993 | WO1993006550A1 Viterbi decoder bit efficient chainback memory method and decoder incorporating same |
| 03/31/1993 | WO1993007690A1 Apparatus and method for recovering a time-varying signal using multiple sampling points |
| 03/31/1993 | WO1993007688A1 Viterbi equalizer for radio receiver |
| 03/31/1993 | EP0534885A2 Automatic speed detection for full-duplex modems |
| 03/31/1993 | EP0534486A2 Direct conversion FSK demodulator |
| 03/31/1993 | EP0534180A2 MSK signal demodulating circuit |
| 03/30/1993 | CA1315364C Modulating arrangement for phase and amplitude modulation of a wave |
| 03/30/1993 | CA1315344C Log-polar signal processing |
| 03/28/1993 | CA2073375A1 Universal processing module for programmable radio's |
| 03/27/1993 | WO1993006677A1 Process for digital transmission and direct conversion receiver |
| 03/24/1993 | EP0533395A1 A cellular radio communication system with different modulation according to cell size |
| 03/24/1993 | EP0533363A2 Non-linear encoder and decoder for information transmission through non-linear channels |
| 03/24/1993 | EP0533208A2 PSK demodulator with feedback circuit for correcting phase and freqency errors |
| 03/24/1993 | EP0533191A2 PSK demodulator with freqency multiplication for the correction of phase and frequency errors |
| 03/24/1993 | EP0532685A1 Method and apparatus for mapping an eight dimensional constellation of a convolutionally coded communication system |
| 03/24/1993 | EP0532648A1 Method and apparatus for transmission of data over power lines |
| 03/24/1993 | EP0532507A1 Cable television radio frequency return method |
| 03/24/1993 | EP0532504A1 Cable television radio frequency data processor. |
| 03/24/1993 | EP0532503A1 Cable television radio frequency subscriber data transmission apparatus and calibration method. |