| Patents for H04B 14 - Transmission systems not characterised by the medium used for transmission (7,274) |
|---|
| 02/25/1986 | US4573167 Digital communication system, particularly color television transmission system |
| 02/18/1986 | US4571736 Digital communication system employing differential coding and sample robbing |
| 02/18/1986 | CA1200935A1 Burst signal transmission system |
| 02/13/1986 | WO1986001025A1 Digital processor for speech signals |
| 02/11/1986 | US4570153 Signal conversion apparatus for use in PCM signal processing system |
| 02/05/1986 | EP0170087A2 Method and apparatus for analyzing and synthesizing human speech |
| 02/05/1986 | EP0169900A1 Zero crossing switching modulation systems and methods |
| 02/04/1986 | US4569058 Transmission system |
| 02/04/1986 | US4567883 Data compression of ECG data using delta modulation |
| 02/04/1986 | CA1200331A1 Adpcm encoder/decoder with signalling bit insertion |
| 01/28/1986 | US4567466 Sensor communication system |
| 01/21/1986 | US4566076 Method of attenuating a digital signal and device for carrying out said method |
| 01/14/1986 | US4564823 Fractional-cycle time/amplitude modulation |
| 01/08/1986 | EP0167364A1 Speech-silence detection with subband coding |
| 01/08/1986 | EP0166806A2 A cosine signal corrector |
| 01/08/1986 | EP0166741A1 A digital communications system. |
| 12/31/1985 | US4562581 Digital signal transmitting and receiving system for serial data which can be easily decoded |
| 12/31/1985 | US4562578 Method for data transmission |
| 12/31/1985 | US4562456 Analog-to-digital conversion apparatus including a circuit to substitute calculated values when the dynamic range of the converter is exceeded |
| 12/24/1985 | US4561119 Optical frequency modulation system |
| 12/19/1985 | WO1985005747A1 Digital signal transmission device |
| 12/19/1985 | WO1985005723A1 Process for reducing the noticeability of errors in a digital audio signal |
| 12/18/1985 | EP0165014A2 Sampling rate converter for delta modulated signals |
| 12/11/1985 | EP0163736A1 Apparatus for processing pcm signal |
| 12/10/1985 | US4558361 Process and system for the compression of the flow rate of data transmitted between at least a television transmitter and a television receiver |
| 12/10/1985 | US4558302 High speed data compression and decompression apparatus and method |
| 12/05/1985 | WO1985005517A1 Apparatus for transmitting digital signals |
| 11/21/1985 | WO1985005211A1 System for correcting error in digital data |
| 11/21/1985 | EP0085820B1 Method for multi-speed digital transmission and apparatus for carrying out said method |
| 11/19/1985 | US4554671 For an analog signal |
| 11/19/1985 | US4554542 Guard tone capture method |
| 11/19/1985 | CA1197015A1 1-law/a-law pcm converter |
| 11/12/1985 | US4553250 Signal transmission system |
| 11/12/1985 | US4553129 Data transmission by subrate grouping |
| 11/07/1985 | WO1985004995A1 Extended threshold analog to digital conversion apparatus for an rf receiver |
| 11/05/1985 | CA1196421A1 Restitution of an analog signal by filtering |
| 10/29/1985 | US4550425 Speech sampling and companding device |
| 10/29/1985 | US4550337 Digital video transmission system |
| 10/22/1985 | US4549305 Adaptive differential PCM decoder |
| 10/22/1985 | US4549304 ADPCM Encoder/decoder with signalling bit insertion |
| 10/22/1985 | US4549298 Detecting and correcting errors in digital audio signals |
| 10/15/1985 | US4547765 Method and circuit arrangement for transliteration of code words |
| 10/14/1985 | EP0056402A4 Adaptive reconstruction of information signals in a plural channel system. |
| 10/08/1985 | US4546342 Data compression method and apparatus |
| 10/08/1985 | CA1195004A1 Noise and crosstalk reduction in analog to digital encoders |
| 10/01/1985 | CA1194599A1 Methods of and apparatus for converting pulse- amplitude-modulated signals into pulse-code- modulated signals |
| 09/18/1985 | EP0054035B1 Interpolative analog-to-digital converter |
| 09/17/1985 | US4542516 ADPCM Encoder/decoder with zero code suppression |
| 09/17/1985 | CA1193734A1 Differential pulse code modulation transmission system |
| 09/11/1985 | EP0154381A2 Digital speech coder with baseband residual coding |
| 09/11/1985 | EP0153986A1 A signum signal generator |
| 09/10/1985 | US4541118 For transmitting a message |
| 09/10/1985 | US4541102 High-speed difference pulse code modulation coder |
| 09/10/1985 | US4541101 Process and device for voice interpolation in a transmission system for digitized voice |
| 09/10/1985 | US4541009 Process and device for sampling a sine wave signal by a multiple frequency signal |
| 09/10/1985 | US4540973 Quantizer for a DPCM encoder |
| 09/03/1985 | US4539683 Method for checking test specimens |
| 09/03/1985 | CA1193014A1 Direct digital to digital sampling rate conversion method and apparatus |
| 08/28/1985 | EP0152430A1 Apparatus and methods for coding, decoding, analyzing and synthesizing a signal. |
| 08/27/1985 | US4538269 Programmable coding and decoding arrangement |
| 08/27/1985 | US4538236 Adaptive digital signal coring circuit |
| 08/27/1985 | US4538234 Adaptive predictive processing system |
| 08/21/1985 | EP0054033B1 Interpolative encoder for subscriber line audio processing circuit apparatus |
| 08/20/1985 | US4536880 Digital DPCM-coder having a high processing speed |
| 08/20/1985 | US4536745 Sampling frequency conversion device |
| 08/15/1985 | WO1985003609A1 Zero crossing switching modulation systems and methods |
| 08/13/1985 | CA1191958A1 Delta-sigma modulator with switched capacitor implementation |
| 08/06/1985 | US4534037 Method and apparatus for scrambled pulse-code modulation transmission or recording |
| 08/06/1985 | US4533247 Optical transmission system |
| 07/31/1985 | EP0149724A1 Method and apparatus for coding digital signals |
| 07/24/1985 | EP0149577A2 Method for converting an analog signal into a pulse signal and inverse conversion method, conversion apparatus for implementing these methods, transmission systems and control and regulation systems comprising such apparatus |
| 07/09/1985 | US4528551 Digital to analog converter employing sigma-delta modulation for use in telephone systems |
| 07/09/1985 | CA1190323A1 Adaptive predictive processing system |
| 07/04/1985 | WO1985002959A1 A digital communications system |
| 07/03/1985 | EP0146988A1 Method of correcting erroneous values of samples of an equidistantly sampled signal and device for carrying out the method |
| 07/02/1985 | US4527276 Digital pulse position modulation communications system with threshold extension |
| 07/02/1985 | US4527195 Apparatus for encoding and decoding information |
| 07/02/1985 | CA1189909A1 Transform modulation system |
| 06/26/1985 | EP0145788A1 Method and apparatus for transmitting digital signal |
| 06/25/1985 | US4525862 Transmission system |
| 06/25/1985 | US4525835 Duplex radio system utilizing time compression expansion |
| 06/20/1985 | WO1985002732A1 Data compression method and apparatus |
| 06/19/1985 | EP0145332A2 Digital audio transmission |
| 06/19/1985 | EP0145097A2 Duplex speech transmission method and a system therefor |
| 06/19/1985 | EP0144538A2 A trigonometric transform function generator |
| 06/06/1985 | WO1985002509A1 Apparatus for correcting frequency-dependent attenuation of the transmitting medium in signal transmission |
| 06/04/1985 | US4521883 Telephony apparatus having filter capacitor switched to undergo discrete phase jumps |
| 06/04/1985 | US4521878 Data transmitting-receiving system |
| 06/04/1985 | CA1188423A1 Speech coding method and device for implementing the improved method |
| 06/04/1985 | CA1188385A1 Method and apparatus for selectively compensating burst errors of variable length in successive digital data words |
| 05/28/1985 | US4520491 Transmission system using differential pulse code modulation with adaptive prediction |
| 05/22/1985 | EP0141969A1 Method and circuit arrangement for improving picture quality by movement-controlled DPCM coding |
| 05/21/1985 | US4519085 Differential data coding and decoding process and system restricting propagation of transmission errors |
| 05/21/1985 | US4519073 Bit compression multiplexer |
| 05/15/1985 | EP0141520A2 Sub-band coding method |
| 05/08/1985 | EP0140094A1 Method of converting the sampling rate of digitally coded television signals |
| 05/08/1985 | EP0139804A1 Device for storing and reading an information bit |
| 05/07/1985 | US4516258 Bit allocation generator for adaptive transform coder |
| 05/07/1985 | US4516241 Bit compression coding with embedded signaling |
| 05/07/1985 | CA1186766A1 Data reading apparatus for data transmission |