| Patents for H04B 14 - Transmission systems not characterised by the medium used for transmission (7,274) |
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| 06/13/1984 | EP0110368A2 Burst signal transmission system |
| 06/12/1984 | US4454498 Adjustable attenuation member for a digital telecommunications system |
| 06/05/1984 | US4453250 PCM Signal processing apparatus |
| 06/05/1984 | US4453158 Method for encoding analog signals |
| 05/29/1984 | US4451921 PCM Signal processing circuit |
| 05/29/1984 | US4451920 PCM Signal processing apparatus |
| 05/29/1984 | US4451919 Digital signal processor for use in recording and/or reproducing equipment |
| 05/29/1984 | CA1168356A1 Data transmission or recording with reduced data rate |
| 05/22/1984 | US4450564 Apparatus for modulating the output signal of a converter |
| 05/15/1984 | US4449190 Silence editing speech processor |
| 05/15/1984 | CA1167563A1 Hardware reduction for digital video system using subsampling and adaptive reconstruction |
| 05/08/1984 | CA1167183A1 Method and apparatus for transmitting data in an error correction format |
| 05/02/1984 | EP0107239A1 Differential pulse code modulation transmission system |
| 05/02/1984 | EP0107074A1 Process for the suppression of quantification noise superposed on a sinusoidal audible tone at the transmission in a digital telecommunication exchange |
| 05/02/1984 | EP0106877A1 Apparatus for converting, transmitting and reconverting a sampled signal |
| 05/01/1984 | US4446530 Fast hadamard transform device |
| 04/25/1984 | EP0106279A2 Digital data transmission system, especially a colour television transmission system |
| 04/24/1984 | CA1166372A1 Interpolative encoder for subscriber line audio processing circuit apparatus |
| 04/18/1984 | EP0105604A2 A dual mode encoding/decoding technique for use in a digital transmission system |
| 04/17/1984 | CA1165887A1 Use of a single reference voltage to implement digital to analog or analog to digital conversion of bipolar signals |
| 04/04/1984 | EP0104988A1 Double integration delta-sigma encoder and use of this encoder in a PCM transmission path and in the measuring of DC voltages |
| 04/04/1984 | EP0104470A2 Fast DPCM coder |
| 04/04/1984 | EP0104469A2 Digital DPCM coder with high processing speed |
| 04/04/1984 | EP0104443A1 Method and circuit arrangement for transcoding code words |
| 04/03/1984 | US4441184 Method and apparatus for transmitting a digital signal |
| 04/03/1984 | CA1165029A1 Subscriber line audio processing circuit apparatus |
| 04/03/1984 | CA1165028A1 Interpolative analog-to-digital converter for subscriber line audio processing circuit apparatus |
| 04/03/1984 | CA1165000A1 System for processing audio pcm digital signals |
| 04/03/1984 | CA1164998A1 Method of and arrangement for digitizing a time- discrete video signal using a picture transform coding |
| 03/28/1984 | EP0104073A1 Digital encoding, decoding and processing of speech signals |
| 03/27/1984 | US4439756 Delta-Sigma modulator with switch capacitor implementation |
| 03/21/1984 | EP0103248A2 Pulse code modulation system |
| 03/20/1984 | US4438523 Differential digital modulation and demodulation system with an analog signal-dependent sampling clock |
| 03/20/1984 | US4438522 Method for encoding analog signals using PCM difference code word for forming a code word of specified length |
| 03/14/1984 | EP0102815A2 Optical communication |
| 03/14/1984 | EP0102608A2 Expansion circuit for digital signals |
| 03/13/1984 | US4437087 Adaptive differential PCM coding |
| 03/13/1984 | CA1163686A1 Digital device for discriminating digitized speech/data signals |
| 03/06/1984 | CA1163364A1 Pcm detector for video reproducer apparatus |
| 03/06/1984 | CA1163359A1 Device for following and estimating the local state of picture contours |
| 02/28/1984 | US4434499 System of numerical transmission with adaptative coding, of analogical information sampled and transformed by orthogonal transformation |
| 02/28/1984 | US4433604 Frequency domain digital encoding technique for musical signals |
| 02/21/1984 | US4433423 High quality delta modulator |
| 02/21/1984 | US4433311 Delta modulation system having reduced quantization noise |
| 02/07/1984 | US4430736 Circuit for correcting distortions in a PCM transmission device |
| 01/17/1984 | CA1160776A1 Apparatus for and method of collating partitioned time disordered synchronous data streams |
| 01/11/1984 | EP0098198A2 Method and system for data rate compression of data transmitted between at least a transmitter and a receiver of television pictures |
| 01/11/1984 | EP0098082A2 Methods of and apparatus for digital audio signal processing |
| 01/10/1984 | CA1160339A1 Time base correcting apparatus |
| 12/06/1983 | US4419693 Error concealment in digital television signals |
| 12/06/1983 | CA1158355A1 Adaptive amplitude averaging for weighting quantizing noise |
| 11/23/1983 | EP0094671A2 Method for data transmission |
| 11/22/1983 | US4417349 SCA Data transmission system with a raised cosine filter |
| 11/22/1983 | US4417283 Digital signal processing system |
| 11/22/1983 | US4417102 Noise and bit rate reduction arrangements |
| 11/15/1983 | US4415881 Digital-to-analog converter |
| 11/10/1983 | WO1983003935A1 Apparatus for converting, transmitting and reconverting a sampled signal |
| 11/09/1983 | EP0093219A1 Digital coding method and device for carrying out the method |
| 11/08/1983 | US4414663 Time division multiplex system having transmitted pulses in time channels distributed over and co-transmitted with a frame clock signal component |
| 11/08/1983 | US4414585 Method of transmitting an audio signal via a transmission channel |
| 11/01/1983 | CA1156368A1 Digital-to-digital code converter |
| 10/27/1983 | WO1983003727A1 Modulation and coding method, with range prediction and reduced bit rate adapted to a signal |
| 10/26/1983 | EP0091979A1 Range-predictive code modulation method with signal-adaptive bit-rate reduction |
| 10/18/1983 | US4411001 Differential pulse code modulation transmission system |
| 10/18/1983 | CA1155556A1 Adaptive delta modulator |
| 10/18/1983 | CA1155555A1 Transmission system using differential pulse code modulation |
| 10/18/1983 | CA1155518A1 Encoding of information |
| 10/11/1983 | US4409627 Video signal decoding circuit |
| 10/11/1983 | US4409594 Apparatus for performing radio frequency pulse modulation with automatic modulation control |
| 10/11/1983 | CA1155226A1 Adaptive prediction differential-pcm transmission method and circuit using filtering by sub-bands and spectral analysis |
| 10/05/1983 | EP0090314A2 PCM encoder conformable to the A-law |
| 09/28/1983 | EP0089641A1 Remote control receiver, especially for the control of electrical devices |
| 09/13/1983 | US4404544 μ-Law/A-law PCM CODEC |
| 09/06/1983 | US4403322 Voice signal converting device |
| 09/06/1983 | US4403263 System for processing audio PCM digital signals |
| 08/31/1983 | EP0086872A2 Method and device for transmitting signals which are frequency-shift-keyed in the audible field |
| 08/23/1983 | CA1152651A1 Method and apparatus for encoding a digital signal to have minimal dc component |
| 08/23/1983 | CA1152650A1 Pcm and pam conversion circuit including signal level variation on the pcm portion of the circuit |
| 08/17/1983 | EP0085820A1 Method for multi-speed digital transmission and apparatus for carrying out said method |
| 08/16/1983 | CA1152220A1 Interpolator |
| 08/10/1983 | EP0085625A2 Filtering and frequency detection circuits for delta modulated signals |
| 08/10/1983 | EP0085614A2 Data transmitting-receiving system |
| 08/10/1983 | EP0085297A2 High quality delta modulator |
| 08/09/1983 | US4398292 Method and apparatus for encoding digital with two error correcting codes |
| 08/09/1983 | US4398290 Process and apparatus for digital data communication using packet switching |
| 08/09/1983 | US4398224 Time base correcting apparatus |
| 08/09/1983 | US4398217 Method of and arrangement for digitizing a time-discrete video signal using a picture transform coding |
| 08/09/1983 | CA1151742A1 Method and apparatus for communicating digital information words by error-correction encoding |
| 08/04/1983 | WO1983002696A1 Adaptive differential pcm coding |
| 08/03/1983 | EP0084945A2 Direct digital to digital sampling rate conversion method and apparatus |
| 08/02/1983 | US4396947 Apparatus for encoding of information |
| 08/02/1983 | CA1151260A1 Digital data transmission system |
| 07/27/1983 | EP0084353A2 Delta-sigma modulator with switched capacitor implementation |
| 07/27/1983 | EP0084125A2 Apparatus for efficient statistical multiplexing of voice and data signals |
| 07/19/1983 | US4394686 Method and system for correcting time base errors in broadband signals stored in or transmitted through a plurality of narrow-band channels |
| 07/12/1983 | US4393502 Method and apparatus for communicating digital information words by error-correction encoding |
| 07/12/1983 | US4393367 Digital compandor having nonlinear companding characteristics |
| 06/22/1983 | EP0081799A1 Method and circuit for establishing a conference connection |
| 06/21/1983 | US4389726 Adaptive predicting circuit using a lattice filter and a corresponding differential PCM coding or decoding apparatus |
| 06/21/1983 | CA1148661A1 Adpcm system for speech or like signals |