| Patents for H04B 14 - Transmission systems not characterised by the medium used for transmission (7,274) |
|---|
| 11/03/1993 | EP0568046A2 Image coding/decoding apparatus |
| 11/03/1993 | EP0567799A1 Apparatus for data reception |
| 11/03/1993 | CN1078081A Digital bit oriented switch, general digital switch and pcmtransmission system |
| 11/02/1993 | US5259001 ADPCM decoder with an integral digital receive gain and method therefor |
| 10/28/1993 | WO1993021710A1 Coordinated coding for digital transmission |
| 10/19/1993 | US5255316 Hands-free telephone apparatus |
| 10/19/1993 | US5255202 Digital signal processing method and system, electric power system signal processing system and electric power control system |
| 10/19/1993 | CA1323457C Pcm communication system |
| 10/13/1993 | EP0565126A1 Stabilized noise shaper of a small scale having a suppressed quantization noise in high frequency region without deteriorating S/N ratio |
| 10/13/1993 | EP0285276B1 Coding of acoustic waveforms |
| 10/13/1993 | EP0214235B1 Error detection and concealment using predicted signal values |
| 10/12/1993 | US5253326 Prioritization method and device for speech frames coded by a linear predictive coder |
| 10/12/1993 | US5253269 Delta-coded lag information for use in a speech coder |
| 10/12/1993 | US5252972 Codec having controllable frame synchronizing and clocking signals |
| 10/06/1993 | EP0564227A1 Image encoding apparatus and method |
| 10/06/1993 | EP0563832A1 Stereo audio encoding apparatus and method |
| 10/05/1993 | US5251328 Predistortion technique for communications systems |
| 10/05/1993 | US5251232 Radio communication apparatus |
| 10/05/1993 | US5251217 Time-division multiplex information transmission system having a variable structure |
| 10/05/1993 | CA2003763C Apparatus and method for providing digital audio in the fm broadcast band |
| 09/30/1993 | WO1993019536A1 Data compression process during storage and/or transmissioin of digital audio signals for studio applications with perceptive coding and variable length code |
| 09/30/1993 | CA2131806A1 Data compression process during storage and/or transmission of digital audio signals for studio applications with perceptive coding and variable length code |
| 09/29/1993 | EP0562875A1 Multiresolution QAM system |
| 09/29/1993 | CN1076816A System of communication |
| 09/28/1993 | US5249201 Transmission of multiple carrier signals in a nonlinear system |
| 09/22/1993 | EP0561454A2 Method and apparatus for editing an audio signal |
| 09/22/1993 | EP0414838B1 Process for transmitting a signal |
| 09/21/1993 | US5247512 Echo canceller |
| 09/16/1993 | WO1993018383A1 Variable bit rate speech encoder |
| 09/15/1993 | EP0560413A2 Adaptive bit allocation for audio encoder and decoder |
| 09/15/1993 | EP0559732A1 Digital data converter. |
| 09/15/1993 | EP0494918B1 Process for transmitting a signal |
| 09/08/1993 | EP0559377A2 Noise shaping circuit |
| 09/08/1993 | EP0559123A2 Codec |
| 09/07/1993 | US5243629 Multi-subcarrier modulation for hdtv transmission |
| 09/04/1993 | WO1993018615A1 Very low bit rate image coding method and codec therefor |
| 09/04/1993 | CA2102190A1 Method of coding images at very low data rate and coding/decoding device implementing this method |
| 09/02/1993 | WO1993017508A1 Filtering method and device for reducing digital audio signal pre-echoes |
| 08/31/1993 | US5241563 Method and apparatus for communicating interleaved data |
| 08/25/1993 | EP0556355A1 First and second digital rate converter synchronization device and method |
| 08/24/1993 | US5239558 Pulse code modulation circuit |
| 08/17/1993 | US5237591 Circuit for digitally adding loss to a signal |
| 08/11/1993 | WO1993016568A1 Bit oriented digital switch and general digital switch for pcm transmission systems |
| 08/11/1993 | EP0554300A1 Process, coder and decoder for data transmission and/or storage. |
| 08/10/1993 | US5235647 Digital transmission system, an apparatus for recording and/or reproducing, and a transmitter and a receiver for use in the transmission system |
| 08/05/1993 | WO1993015562A1 Error protection in a subband coder |
| 08/04/1993 | EP0494990B1 Process for transmitting a signal |
| 08/04/1993 | EP0485390B1 Process for transmitting a signal |
| 08/03/1993 | US5233349 Signal transmission system |
| 08/03/1993 | CA1321014C High definition television augmentation channel |
| 07/29/1993 | DE4202140A1 Digital audio signal transmission using sub-band coding - inserting extra fault protection signal, or fault protection bit into data frame |
| 07/28/1993 | EP0552781A2 Voice signal communication with burst error reduction |
| 07/27/1993 | US5231669 Low bit rate voice coding method and device |
| 07/27/1993 | US5231492 Video and audio multiplex transmission system |
| 07/27/1993 | US5231486 Data separation processing in a dual channel digital high definition television system |
| 07/22/1993 | CA2087585A1 Voice signal communication with burst error reduction |
| 07/21/1993 | EP0552005A1 Method and apparatus for noise burst detection in a signal processor |
| 07/21/1993 | EP0551422A1 Automatic length-reducing audio delay line |
| 07/21/1993 | CN1074570A Method and apparatus for noise burst detection in a signal processor |
| 07/14/1993 | EP0550942A1 Signal processor for sampling rate conversion |
| 07/13/1993 | US5227990 Process for transmitting and receiving a signal |
| 07/13/1993 | US5227876 Method and system for transmitting packages of data |
| 07/13/1993 | CA1320255C Method of and apparatus for message communication on loran-c navigational signal broadcasts and the like with reduced navigation errors and with reduced skywave navigation location errors |
| 07/06/1993 | US5226085 Method of transmitting, at low throughput, a speech signal by celp coding, and corresponding system |
| 06/23/1993 | CN1073562A ADPCM decoder with an integral digital receive gain and method therefor |
| 06/16/1993 | EP0546920A1 Method and circuit for noise shaping |
| 06/16/1993 | EP0340301B1 Digital adaptive transform coding process |
| 06/15/1993 | US5220327 Decimation filter in a sigma-delta analog-to-digtal converter |
| 06/15/1993 | CA2001862C Signal conversion apparatus which reduces quantization errors for telecommunications applications |
| 06/09/1993 | EP0545915A2 Device for transmitting data words representing a digitized analog signal |
| 06/09/1993 | EP0545386A2 Method for speech coding and voice-coder |
| 06/09/1993 | EP0545017A2 Data compression method and apparatus in which quantizing bits are allocated to a block in a present frame in response to the block in a past frame |
| 06/09/1993 | DE4241131A1 Signal encoder selecting suitable signal transformation - selects output from parallel connected transformation unit having greatest measured energy and encodes |
| 06/09/1993 | CN1073063A Pulse communication method and its device |
| 06/02/1993 | EP0544101A1 Method and apparatus for the transmission of speech signals |
| 06/02/1993 | EP0185692B2 Process for reducing the noticeability of errors in a digital audio signal |
| 05/27/1993 | WO1993011530A1 Prioritization method and device for speech frames coded by a linear predictive coder |
| 05/26/1993 | EP0542976A1 Pcm monitor |
| 05/25/1993 | US5214742 Method for transmitting a signal |
| 05/25/1993 | US5214741 Variable bit rate coding system |
| 05/25/1993 | US5214678 Digital transmission system using subband coding of a digital signal |
| 05/25/1993 | US5214656 Multiplexed coded modulation with unequal error protection |
| 05/25/1993 | CA1318402C Signal communication capable of avoiding an audible reproduction of a sequency of information signals |
| 05/13/1993 | WO1993009644A1 Process for reducing data in the transmission and/or storage of digital signals from several dependent channels |
| 05/12/1993 | EP0541161A2 Transmission system for correcting individual or bundle errors of a cyclic coded digital signal |
| 05/05/1993 | EP0540232A2 Coded modulation with unequal error protection |
| 05/05/1993 | EP0540231A2 Coded modulation with unequal error protection |
| 04/29/1993 | WO1993008651A1 Process for reducing frequency interlacing during acoustic or optical signal transmission and/or recording |
| 04/28/1993 | EP0538289A1 Process for transmitting a time-variable control parameter |
| 04/28/1993 | EP0296175B1 Method and installation for digital communication, particularly between and toward moving vehicles |
| 04/27/1993 | CA1317025C Digital signal recording apparatus |
| 04/23/1993 | WO1992010037A1 Digital data converter |
| 04/23/1993 | CA2096352A1 Digital data converter |
| 04/22/1993 | DE4229654A1 Audio and video signal transmission with error correction - protects data groups with bit quantity fluctuating between frames by sorting data bits w.r.t. their importance and distributing bit groups homogeneously within frame |
| 04/21/1993 | EP0537804A2 Speech recording apparatus |
| 04/20/1993 | US5204677 Quantizing error reducer for audio signal |
| 04/20/1993 | US5204676 Circuit arrangement for frequency conversion of a digital signal |
| 04/07/1993 | EP0535838A2 Digital audio interface in a GSM device |
| 04/06/1993 | US5201060 Baseband signal communication apparatus |
| 04/06/1993 | US5200821 Arrangement for processing signals before and after transmission and/or storage with flow rate reduction, and signal transmission and/or storage systems including such arrangements |