| Patents for H04L 27 - Modulated-carrier systems (89,721) |
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| 05/08/1984 | US4447909 Circuit for rapid recognition of FSK signals in a radio channel |
| 05/08/1984 | US4447908 Method of transmitting binary data sequences and arrangement for enabling the rapid determination of the end of a transmitted binary data sequence |
| 05/08/1984 | CA1167167A1 Method and apparatus for synthesizing a modulated carrier to reduce interchannel interference in a digital communication system |
| 05/08/1984 | CA1167118A1 Means for subdividing a baud period into multiple integration intervals to enhance digital message detection |
| 05/01/1984 | CA1166707A1 Stage for selecting the alternating signal with the largest amplitude between two signals with different frequencies |
| 04/25/1984 | EP0106647A2 A method and system for digital data transmission |
| 04/25/1984 | EP0106163A2 8-Phase phase-shift keying demodulator |
| 04/25/1984 | EP0106136A2 Digitally controlled transversal equalizer |
| 04/24/1984 | US4445224 Pull-in circuit for a digital phase locked loop |
| 04/24/1984 | US4445094 SMSK And MSK demodulator |
| 04/18/1984 | EP0105513A2 Method of measuring quality of a signal received by a receiver of a two-dimensional linear modulation data communication system |
| 04/18/1984 | EP0105503A2 Automatic adaptive equalizer having improved reset function |
| 04/17/1984 | CA1165914A1 Apparatus for coupling signals to or from a two-wire line |
| 04/17/1984 | CA1165913A1 Apparatus for coupling signals to or from a two-wire line |
| 04/10/1984 | US4442530 Digital transmitter with vector component addressing |
| 04/04/1984 | EP0104449A2 Quadrature amplitude demodulator comprising a combination of a full-wave rectifying circuit and binary detectors |
| 04/03/1984 | US4441194 Triple bit non-coherent matched filter receiving system |
| 04/03/1984 | US4441193 Frequency-encoding circuit for reducing distortion |
| 04/03/1984 | US4440988 Modem with low part count and improved demodulator |
| 04/03/1984 | US4440987 For converting frequency-shift-keyed signals into tone burst-coded signals |
| 04/03/1984 | CA1165021A1 Circuitry for derivations of clock signals from pulse-code-modulated transmissions |
| 03/28/1984 | EP0103903A1 Method and apparatus for transferring digital data |
| 03/28/1984 | EP0103866A2 Error-correction system for two-dimensional multilevel signals |
| 03/27/1984 | US4439864 Modem circuitry |
| 03/27/1984 | US4439863 Partial response system with simplified detection |
| 03/27/1984 | US4439737 Phase locked loop, as for MPSK signal detector |
| 03/27/1984 | CA1164549A1 Timing signal synchronization device |
| 03/20/1984 | US4438524 Receiver for angle-modulated carrier signals |
| 03/20/1984 | US4438519 Methods, and apparatus, for transmitting high-bit-rate digital data in power line communication media having high harmonic noise content |
| 03/20/1984 | US4438511 Packetized ensemble modem |
| 03/20/1984 | US4438413 Serial minimum shift keyed modulator including notch and bandpass filters |
| 03/20/1984 | US4438407 Integrable demodulator for digital signals modulated onto carriers |
| 03/20/1984 | US4438355 For canceling phase shifts in a signal |
| 03/20/1984 | CA1164058A1 Pull-in circuit of digital phase locked loop |
| 03/15/1984 | WO1984001044A1 Multiple simultaneous tone decoder |
| 03/14/1984 | EP0102918A2 Correlation data communications system |
| 03/14/1984 | EP0102662A2 Non-PLL concurrent carrier and clock synchronization |
| 03/13/1984 | US4437068 FSK Demodulator for frequency-modulation modem |
| 03/06/1984 | US4435824 Communication system having improved differential phase shift keying modulation |
| 03/06/1984 | US4435773 Receiver for effecting synchronous demodulation |
| 03/06/1984 | US4435682 Frequency demodulator employing a circuit having a delay varying with the received frequency |
| 03/06/1984 | US4435656 Phase inverter circuit |
| 03/01/1984 | WO1984000867A1 Adaptive signal receiving method and apparatus |
| 02/29/1984 | EP0101577A2 Method and device for clock signal recovery at the receiving side |
| 02/28/1984 | CA1163005A1 Timing recovery for modems |
| 02/22/1984 | EP0101317A2 Bilateral digital data transmission system |
| 02/21/1984 | US4433422 Frequency measuring system for alternating frequency signals |
| 02/21/1984 | US4433310 Modulator-demodulator for four level double amplitude modulation on quadrature carriers |
| 02/21/1984 | CA1162620A1 Method and apparatus for converting binary information into a single-sideband 3-level correlative signal |
| 02/21/1984 | CA1162619A1 Demodulator carrier recovery loop |
| 02/14/1984 | US4431872 Telecommunication receivers |
| 02/14/1984 | US4431867 In a data communications adapter |
| 02/14/1984 | CA1162244A1 Digital data transmission systems |
| 02/01/1984 | EP0099702A2 A frequency converter |
| 01/31/1984 | US4429404 FSK Data operated switch |
| 01/25/1984 | EP0099102A1 Signal conditioning method and apparatus for FM code signal |
| 01/25/1984 | EP0098831A1 Circuit for the suppression of the carrier |
| 01/24/1984 | US4428061 Method and apparatus for receiving carrier-borne digital signals intended to operate remotely-operable switching devices |
| 01/24/1984 | CA1161130A1 Circuit arrangement for correcting bit distortion in frequency-modulated data transmission |
| 01/18/1984 | EP0098705A2 Phase lock loop circuit |
| 01/18/1984 | EP0098665A2 Data demodulator for a direct frequency modulated signal |
| 01/18/1984 | EP0098649A2 Digital data demodulator |
| 01/17/1984 | US4426711 Process for the transmission of service signals for a digital radio beam, as well as transmitter and receiver for using such a process |
| 01/17/1984 | US4426710 Processes for generating duo-binary FSK, tamed FSK and TFM modulations and modulators applying those processes |
| 01/17/1984 | CA1160709A1 Timing acquisition in voiceband data sets |
| 01/11/1984 | EP0098003A2 Transmitter circuit for modems using frequency shift modulation |
| 01/11/1984 | EP0097981A1 Transmission system for the transmission of binary data symbols |
| 01/11/1984 | EP0097754A1 Tone detector and multifrequency receiver using this detector |
| 01/11/1984 | EP0097753A1 Tone receiver for a digital data transmission system |
| 01/10/1984 | US4425666 Data encoding and decoding communication system for three frequency FSK modulation and method therefor |
| 01/10/1984 | US4425665 FSK Voiceband modem using digital filters |
| 01/10/1984 | US4425664 Multiport programmable digital data set |
| 01/03/1984 | US4424497 System for phase locking clock signals to a frequency encoded data stream |
| 01/03/1984 | US4424492 Apparatus and means for high speed digital frequency shifting |
| 01/03/1984 | CA1159903A1 Radio transmitter/receiver for digital and analog communications system |
| 12/27/1983 | US4423519 Apparatus and method for detecting the onset of a frequency shift keyed signal |
| 12/27/1983 | US4423390 Side lock avoidance network for PSK demodulator |
| 12/20/1983 | US4422175 Constrained adaptive equalizer |
| 12/20/1983 | CA1159112A1 System for multi-level data transmission by means of an angle-modulated carrier having a constant amplitude |
| 12/13/1983 | US4420723 Phase locked loop amplifier for variable amplitude radio waves |
| 12/13/1983 | CA1158789A1 Filters comprising reactive components, and a method of determining impedances thereof |
| 12/06/1983 | US4419759 Concurrent carrier and clock synchronization for data transmission system |
| 12/06/1983 | US4419756 Voiceband data set |
| 12/06/1983 | CA1158324A1 Frequency modulator |
| 11/29/1983 | US4418416 Frequency modulation transmitter for voice or data |
| 11/24/1983 | WO1983004156A1 Dual tone multifrequency and dial pulse receiver |
| 11/24/1983 | WO1983004152A1 A communication system having improved differential phase shift keying modulation |
| 11/24/1983 | WO1983004148A1 Pulse adding and subtracting circuit controlled by digital data |
| 11/22/1983 | US4417349 SCA Data transmission system with a raised cosine filter |
| 11/22/1983 | US4417219 Phase displacement modulator |
| 11/22/1983 | CA1157534A1 Wideband digital frequency discriminator and phase and frequency detector |
| 11/16/1983 | EP0094058A2 Demodulation device for composite PSK-PSK modulated waves |
| 11/16/1983 | EP0094040A2 System for synchronous data transmission with the aid of a constant envelope amplitude-modulated carrier |
| 11/16/1983 | EP0093882A1 Coupling stage for coupling coded information on a phase line of an electric network |
| 11/16/1983 | EP0093819A1 System for the radio transmission of a binary coded signal |
| 11/15/1983 | US4416016 Differential phase shift keyed receiver |
| 11/15/1983 | US4416015 Timing acquisition in voiceband data sets |
| 11/15/1983 | US4415933 Carrier wave recovery circuit |
| 11/15/1983 | CA1157134A1 Receiver for push-button pcm encoded multifrequency signals |
| 11/15/1983 | CA1157112A1 Quadriphase differential demodulator |