| Patents for H04B 14 - Transmission systems not characterised by the medium used for transmission (7,274) |
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| 05/17/1994 | US5313500 Frame synchronization circuit comprising a series-to-parallel converter |
| 05/17/1994 | US5313457 Code position modulation system and method for multiple user satellite communications |
| 05/14/1994 | CA2106439A1 Burst mode digital data receiver |
| 05/11/1994 | WO1994010769A1 Muting of a cordless telephone with adpcm coding |
| 05/11/1994 | WO1994010758A1 Process for transmitting and/or storing digital signals from several channels |
| 05/11/1994 | EP0596663A2 A high efficiency encoding device and a noise spectrum modifying device and method |
| 05/11/1994 | EP0596662A2 Noise shaping circuit and noise shaping method |
| 05/10/1994 | US5311549 Method and system for processing the pre-echoes of an audio-digital signal coded by frequency transformation |
| 05/05/1994 | DE4236989A1 Verfahren zur Übertragung und/oder Speicherung digitaler Signale mehrerer Kanäle Method for the transmission and / or storage of digital signals of multiple channels |
| 05/03/1994 | US5309443 Dynamic muting method for ADPCM coded speech |
| 05/03/1994 | US5309114 Pulse step modulator |
| 04/28/1994 | DE4236088A1 Verfahren zur Verringerung störender Auswirkungen schlechter Sprachübertragungsqualität bei einer Fernsprechverbindung mit einem schnurlosen Fernsprechgerät A method for reducing interfering effects of bad speech transmission quality of a telephone link with a cordless telephone set |
| 04/27/1994 | EP0593850A2 Method and apparatus for subband filtering of a stereo audio signal |
| 04/26/1994 | US5307376 Device for the coherent demodulation of time-frequency interlaced digital data, with estimation of the frequency response of the transmission channel and threshold, and corresponsing transmitter |
| 04/20/1994 | EP0593255A1 An arrangement for demodulating speech signals discontinuously transmitted from a mobile unit |
| 04/20/1994 | EP0593165A2 Telecommunications apparatus for the connection of low bit rate data via a tandem connection |
| 04/19/1994 | US5305352 For use in a receiver |
| 04/19/1994 | US5305332 Speech decoder for high quality reproduced speech through interpolation |
| 04/13/1994 | EP0592104A2 Coding and decoding of digital signals |
| 04/13/1994 | EP0591842A1 Method and apparatus for concealing bit errors and interpolations in digital sound signals |
| 04/13/1994 | EP0591643A1 Digital broadcast system with a sending network |
| 04/13/1994 | CN1085375A Switched signal processing circuit |
| 04/12/1994 | CA1328483C Digital signal transmission/reception using differential polarization modulation/demodulation |
| 04/06/1994 | EP0590790A2 Modified DCT signal transforming system |
| 03/31/1994 | WO1994007313A1 Speech codec |
| 03/31/1994 | WO1994007148A1 Scanning process for jitter signals |
| 03/31/1994 | WO1994003988A3 Dithered digital signal processing system |
| 03/30/1994 | EP0589709A2 Multiresolution transmission system |
| 03/30/1994 | EP0589140A2 Bit allocation method in subband coding |
| 03/29/1994 | US5299281 Method and apparatus for converting a digital speech signal into linear prediction coding parameters and control code signals and retrieving the digital speech signal therefrom |
| 03/29/1994 | US5298899 PCM encoder and decoder using exkrema |
| 03/23/1994 | EP0588526A1 A method of and system for noise suppression |
| 03/23/1994 | EP0587838A1 Very low bit rate image coding method and coder therefor |
| 03/22/1994 | US5297203 Digital cordless telephone apparatus |
| 03/22/1994 | US5297147 Data compression and decompression controlling method |
| 03/17/1994 | WO1994006099A1 Improved vector quantization |
| 03/17/1994 | WO1994006098A1 Improved preprocessing and postprocessing for vector quantization |
| 03/17/1994 | DE4230853A1 Abtastverfahren für verjitterte Signale Scanning for jittered signals |
| 03/17/1994 | CA2143633A1 Improved vector quantization |
| 03/16/1994 | EP0586565A1 Improved signal encode/decode system |
| 03/15/1994 | US5295159 Coordinated coding for digital transmission |
| 03/09/1994 | EP0585434A1 Filtering method and device for reducing digital audio signal pre-echoes |
| 03/08/1994 | US5293633 Apparatus and method for providing digital audio in the cable television band |
| 03/02/1994 | EP0584865A1 Coding for a multilevel transmission system |
| 03/02/1994 | EP0584861A1 Transmission system with a subband echo canceller and subband coding apparatus |
| 03/02/1994 | EP0584847A1 Method for digitally coding a composite signal and system therefor |
| 03/02/1994 | EP0584840A2 Apparatus for adaptive interframe predictive decoding of a video signal |
| 03/02/1994 | EP0584766A1 Speech codec and a method of processing a speech signal with speech codec |
| 03/02/1994 | EP0584718A1 Switched signal processing circuit |
| 03/01/1994 | US5291484 Relay and exchange system for time division multiplex data |
| 02/23/1994 | EP0583490A1 Procedure to process an electrical signal, especially a signal derived from the heart |
| 02/23/1994 | CN1082801A Data separation processing in a digital television system |
| 02/23/1994 | CN1082784A Data compression system using source representation |
| 02/17/1994 | WO1994003988A2 Dithered digital signal processing system |
| 02/17/1994 | WO1994003984A1 Data compression system using source representation |
| 02/17/1994 | WO1994003983A1 Single clock cycle data compressor/decompressor with a string reversal mechanism |
| 02/17/1994 | CA2141669A1 Data compression system using source representation |
| 02/16/1994 | EP0583172A1 Speech decoding apparatus and method of decoding |
| 02/16/1994 | EP0582827A2 Method and apparatus for communicating interleaved data |
| 02/08/1994 | CA1326912C Speech coding system |
| 02/02/1994 | EP0581435A2 Audio data coding methods and apparatus |
| 02/02/1994 | EP0293489B1 Digital transmission system |
| 02/01/1994 | US5283679 Communications process, transmitter and receiver for analog signals |
| 01/26/1994 | EP0579813A1 Bit oriented digital switch and general digital switch for pcm transmission systems |
| 01/20/1994 | WO1994001816A1 Digital signal processor architecture |
| 01/19/1994 | EP0579075A2 Transmission error recovery for digital communication systems |
| 01/12/1994 | EP0578438A2 Truncation error correction for predictive coding/encoding |
| 01/12/1994 | EP0578063A1 Quantization bit number allocation by first selecting a subband signal having a maximum of signal to mask ratios in an input signal |
| 01/12/1994 | EP0455738B1 Low bit rate transform coder, decoder and encoder/decoder for high-quality audio |
| 01/11/1994 | US5278866 Radio communication apparatus with stored coding/decoding procedures |
| 01/09/1994 | CA2099169A1 Truncation error correction for predictive coding/encoding |
| 01/05/1994 | EP0577301A1 Digital receive line filter circuit with data operated squelch |
| 01/04/1994 | US5276898 System for selectively compressing data frames based upon a current processor work load identifying whether the processor is too busy to perform the compression |
| 01/04/1994 | US5276827 Data buffer for the duration of cyclically recurrent buffer periods |
| 01/04/1994 | CA1325845C Process and a circuit to improve the resolution of digital signals |
| 12/30/1993 | CA2099302A1 Method and apparatus for sample-data receiver squelch |
| 12/29/1993 | EP0576382A1 Transmission procedure of electrical signals on a radio-channel and transmission systems for the implementation of the procedure |
| 12/28/1993 | US5274740 Decoder for variable number of channel presentation of multidimensional sound fields |
| 12/22/1993 | CN1023280C Digital transmission system using subband coding of digital signal |
| 12/15/1993 | EP0573409A1 Interpolative analog/digital converter for band-pass signals. |
| 12/15/1993 | EP0559732A4 Digital data converter |
| 12/14/1993 | US5271036 Method and device for the recognition of modulations |
| 12/09/1993 | WO1993025016A1 Dynamic loader |
| 12/09/1993 | WO1993025007A1 Method for compressing sound information and apparatus for reproducing sound information |
| 12/08/1993 | EP0573192A1 Method and apparatus for muting switching noise while switching between CODECS |
| 12/07/1993 | US5268961 Error control apparatus for a digital video signal processing system |
| 12/07/1993 | US5268938 Redundancy scheme for Fourier transform coding on peak limited channels |
| 12/02/1993 | DE4231918C1 Verfahren für die Codierung von Sprachsignalen A method for encoding speech signals |
| 11/30/1993 | US5267268 Method for reducing the risk of poor reception in a mobile telephony system |
| 11/30/1993 | US5267036 Video coder/decoder with shift prevision for correctly decoded signal blocks |
| 11/24/1993 | EP0344169B1 Transmission system |
| 11/23/1993 | US5265126 Voice recording and reproducing apparatus having perpendicular carrier modulation |
| 11/23/1993 | CA1324689C Method and apparatus for transmitting information |
| 11/23/1993 | CA1324672C Variable rate coder |
| 11/18/1993 | EP0569554A1 Transmission of multiple carrier signals in a nonlinear system |
| 11/18/1993 | EP0569432A1 Method and apparatus for decoding video signals. |
| 11/16/1993 | US5262788 Device and method for data transmission and/or acquisition using two cross polarizations of an electromagnetic wave and magnetic recording device |
| 11/11/1993 | WO1993022847A1 Modem-channel bank converter |
| 11/10/1993 | EP0568846A1 Quantizing error reducer for audio signal |
| 11/10/1993 | EP0568657A1 Prioritization method and device for speech frames coded by a linear predictive coder |