| Patents for H04B 14 - Transmission systems not characterised by the medium used for transmission (7,274) |
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| 12/09/1986 | CA1215177A1 Adaptive differential pcm coding |
| 12/09/1986 | CA1215120A1 Optical heterodyne detection pulse receiving system and method |
| 12/03/1986 | EP0203551A2 PCM communication apparatus |
| 12/02/1986 | US4626828 Adaptive predictive code conversion method of interrupting prediction and an encoder and a decoder for the method |
| 12/02/1986 | US4626827 Method and system for data compression by variable frequency sampling |
| 11/21/1986 | EP0152430A4 Apparatus and methods for coding, decoding, analyzing and synthesizing a signal. |
| 11/20/1986 | EP0201971A2 Communication system |
| 11/20/1986 | EP0201679A1 Method for reducing the image data of digital television signals |
| 11/18/1986 | US4623919 Method and system for controlling access to transmitted modulated electromagnetic wave carried information |
| 11/18/1986 | CA1214280A1 Quantizer for a dpcm-coder |
| 11/18/1986 | CA1214279A1 Digital dpcm-coders of high processing speed |
| 11/18/1986 | CA1214278A1 Transmission system using differential pulse code modulation with adaptive prediction |
| 11/18/1986 | CA1214277A1 Method for the transmission of information, in which the signals are coded by way of the magnitude of the amplitudes of the half-waves or periods of a sinus- wave alternating current |
| 11/18/1986 | CA1214261A1 Combined intraframe and interframe transform coding system |
| 11/11/1986 | US4622537 Predictive code conversion method capable of forcibly putting a feedback loop in an inactive state |
| 11/05/1986 | EP0200420A2 Digital correlation indicator |
| 10/22/1986 | CN86102843A System structure recognition method for a multiloop transmission system |
| 10/21/1986 | US4618882 Digital correlation indicator and hanging dot reduction system employing same |
| 10/15/1986 | EP0197527A2 Method for the digital transmission of information |
| 10/15/1986 | EP0197433A2 Switching system having a tone trunk and method for generating digital codes therein |
| 10/14/1986 | US4617676 Predictive communication system filtering arrangement |
| 10/14/1986 | CA1212776A1 Analog and digital signal apparatus |
| 10/14/1986 | CA1212756A1 Method for data transmission |
| 10/14/1986 | CA1212728A1 Digital sub-band filters |
| 10/09/1986 | WO1986005675A1 Telemetry system for an implantable device |
| 10/07/1986 | US4616271 Digital audio system with automatic fade in and fade out operations |
| 10/01/1986 | EP0196239A1 Audio frequency signal predistortion apparatus in a pulse width modulation system of an AM radiotransmitter |
| 09/30/1986 | US4614934 Digital-to-analog converter device for processing PCM signals of different sampling frequencies |
| 09/24/1986 | EP0195502A2 A/D converter |
| 09/23/1986 | CA1211846A1 Bit compression coding with embedded signaling |
| 09/23/1986 | CA1211799A1 Apparatus for correcting frequency-dependent attenuation of the transmitting medium in signal transmission |
| 09/17/1986 | CN85103338A Method of pulse compressed weighting of baker code |
| 09/16/1986 | US4612573 Method for clock rate conversion |
| 09/12/1986 | WO1986005340A1 Error detection and concealment using predicted signal values |
| 09/09/1986 | US4611323 Method for transmitting digitally coded analog signals |
| 09/03/1986 | EP0193396A2 Optical signal transmission system including pulsed FM modulator/demodulator |
| 09/03/1986 | EP0193143A2 Audio signal transmission method |
| 09/02/1986 | US4610022 Voice encoding and decoding device |
| 09/02/1986 | CA1210871A1 Guard tone capture method |
| 08/27/1986 | CN86100787A Error detection and concealment using predicted signal values |
| 08/26/1986 | US4608456 Digital audio scrambling system with error conditioning |
| 08/26/1986 | CA1210517A1 Broadband transmission on limited bandwidth digital line |
| 08/19/1986 | US4607281 Method and circuit arrangement for the improvement of the picture quality by activity-controlled DPCM coding |
| 08/19/1986 | CA1210135A1 Process and system for the compression of the flow rate of data transmitted between at least a television transmitter and a television receiver |
| 08/13/1986 | EP0190314A1 Data transmission method and apparatus |
| 08/13/1986 | EP0190225A1 Digital processor for speech signals |
| 08/12/1986 | US4605963 Reduction of control bits for adaptive sub-nyquist encoder |
| 08/06/1986 | EP0189859A1 Method for correcting picture errors |
| 08/05/1986 | US4604657 Apparatus for processing PCM signal |
| 07/22/1986 | CA1208368A1 Data transmission by subrate grouping |
| 07/16/1986 | EP0187185A2 Switching device for delta-modulated signals |
| 07/15/1986 | US4600915 Digital-to-analog converter circuit |
| 07/15/1986 | CA1207906A1 Speech-adaptive predictive coding system having reflected binary encoder/decoder |
| 07/09/1986 | EP0186763A1 Method of and device for speech signal coding and decoding by vector quantization techniques |
| 07/08/1986 | CA1207439A1 Digital audio signal processing |
| 07/02/1986 | EP0186151A2 Extrema coding digitizing signal processing method and apparatus |
| 07/02/1986 | EP0185692A1 Process for reducing the noticeability of errors in a digital audio signal. |
| 07/01/1986 | US4598398 Test apparatus for PCM/FDM transmultiplexer |
| 06/25/1986 | EP0185095A1 Digital signal transmission device |
| 06/18/1986 | EP0184803A2 Sequential-logic integrated-circuit for PCM compression |
| 06/17/1986 | CA1206280A1 Multirate digital transmission method and device for implementing said method |
| 06/17/1986 | CA1206237A1 Method of and circuit arrangement for setting up a conference call |
| 06/10/1986 | US4594726 Dedithering circuitry in digital TV receiver |
| 06/10/1986 | US4594575 Digital processor for speech signals |
| 06/10/1986 | CA1205917A1 Adpcm encoder/decoder with zero code suppression |
| 06/04/1986 | EP0182915A1 Apparatus for transmitting digital signals |
| 06/03/1986 | US4593398 Adaptive differential PCM system with residual-driven adaptation of feedback predictor |
| 06/03/1986 | US4593392 Error correction circuit for digital audio signal |
| 05/27/1986 | US4592073 Burst signal transmission system |
| 05/27/1986 | US4592023 In a read/write random access memory |
| 05/20/1986 | CA1204823A1 Signal transmission system |
| 05/13/1986 | US4589130 Multirate digital transmission method and device for implementing said method |
| 05/13/1986 | US4588986 Method of digitizing audio signals |
| 05/13/1986 | US4588981 Double integration, delta-sigma, analog-digital coder |
| 05/07/1986 | EP0180202A2 Method of and device for correcting burst errors on low bit-rate coded speech signals transmitted on radio-communication channels |
| 05/07/1986 | EP0179923A1 System for correcting error in digital data |
| 05/06/1986 | US4587620 Noise elimination device |
| 05/06/1986 | CA1204188A1 Privacy signal transmission system |
| 04/30/1986 | EP0179056A1 Extended threshold analog to digital conversion apparatus for an rf receiver. |
| 04/30/1986 | EP0065515B1 Stable vortex generating device |
| 04/23/1986 | EP0178608A2 Subband encoding method and apparatus |
| 04/22/1986 | US4584720 Optical communication system using pulse position modulation |
| 04/22/1986 | US4584692 Data transmitting-receiving system |
| 04/22/1986 | US4584534 Method and apparatus for demodulating a carrier wave which is phase modulated by a subcarrier wave which is phase shift modulated by baseband signals |
| 04/15/1986 | US4583074 Expansion circuit for digital signals |
| 04/15/1986 | CA1203317A1 Dual mode coding |
| 04/09/1986 | EP0177465A2 Method and apparatus for operating on companded PCM voice data |
| 04/08/1986 | US4581766 Trigonometric transform function generator |
| 04/08/1986 | US4581746 Technique for insertion of digital data bursts into an adaptively encoded information bit stream |
| 04/08/1986 | CA1203031A1 Bit compression multiplexing |
| 04/02/1986 | EP0176243A2 Frequency domain speech coding |
| 04/01/1986 | US4580128 Digital signal processing device |
| 03/25/1986 | US4578797 In a communications system |
| 03/25/1986 | CA1202421A1 Digital method and device for correcting the phase error of a sampled signal as applicable to the correction of television signals |
| 03/25/1986 | CA1202420A1 Process and device for sampling a sine wave signal by a multiple frequency signal |
| 03/25/1986 | CA1202175A1 Refractory fiber module retainer |
| 03/13/1986 | WO1986001665A1 Predictive communication system filtering arrangement |
| 03/12/1986 | EP0174056A2 Bandwidth compression system |
| 03/04/1986 | US4574383 Decoder of adaptive differential pulse code modulation |
| 02/27/1986 | WO1986001357A1 Data transmission method and apparatus |