| Patents for H04B 14 - Transmission systems not characterised by the medium used for transmission (7,274) |
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| 02/25/1997 | US5606362 Variable bit rate audio information transmitting apparatus, and method therefor |
| 02/25/1997 | CA2068526C Speech coding system |
| 02/19/1997 | EP0758502A1 Bad frame detection |
| 02/18/1997 | US5604769 Hybrid equalizer arrangement for use in data communications equipment |
| 02/13/1997 | WO1997005602A1 Method and apparatus for generating and encoding line spectral square roots |
| 02/13/1997 | CA2228172A1 Method and apparatus for generating and encoding line spectral square roots |
| 02/11/1997 | US5602874 Method and apparatus for reducing quantization noise |
| 02/06/1997 | WO1997004621A1 Process for reducing redundancy during the coding of multichannel signals and device for decoding redundancy-reduced multichannel signals |
| 02/05/1997 | EP0756789A1 Complexity determining apparatus |
| 02/05/1997 | EP0756788A1 Parameter sampling apparatus |
| 02/04/1997 | US5600674 Method and apparatus of an enhanced digital signal processor |
| 01/30/1997 | WO1997003502A1 Digital transmission system, transmitter, receiver, equivalent analog signal, and transmission method |
| 01/29/1997 | EP0756394A2 Method and circuit for clock synchronisation of a digital coder and decoder |
| 01/29/1997 | CN1141699A Encoding and decoding of wideband digital information signal |
| 01/23/1997 | WO1997002561A1 A method to evaluate the hangover period in a speech decoder in discontinuous transmission, and a speech encoder and a transceiver |
| 01/23/1997 | DE19526366A1 Verfahren zur Redundanzreduktion bei der Codierung von mehrkanaligen Signalen und Vorrichtung zur Dekodierung von redundanzreduzierten, mehrkanaligen Signalen A method for reducing redundancy during the coding of multichannel signals and apparatus for decoding redundancy-reduced multichannel signals |
| 01/22/1997 | CN1141107A Data frame format for variable size data constellations |
| 01/22/1997 | CN1141103A A High-data-rate wireless local-area network |
| 01/21/1997 | US5596659 Preprocessing and postprocessing for vector quantization |
| 01/21/1997 | US5596601 Method and apparatus for spread spectrum code pulse position modulation |
| 01/21/1997 | US5596581 Recording and reproducing an MPEG information signal using tagged timing information |
| 01/15/1997 | EP0716787B1 Sub-band coder with differentially encoded scale factors |
| 01/15/1997 | EP0709005B1 Computationally efficient adaptive bit allocation for coding method and apparatus |
| 01/15/1997 | EP0709004B1 Hybrid adaptive allocation for audio encoder and decoder |
| 01/15/1997 | CN1140362A Coding apparatus |
| 01/14/1997 | US5594912 Digital signal processing device with optimized ALU circuit and logic block for controlling one of two registers based on the contents of the multiplication register |
| 01/14/1997 | US5594833 Rapid sound data compression in code book creation |
| 01/09/1997 | WO1996037048A3 Lossless coding method for waveform data |
| 01/08/1997 | EP0752778A1 Method and apparatus for a DS-CDMA communication system with M-ar PPM spreading-sequence signal |
| 01/08/1997 | CN1140001A Method and device for performing interpolation of digital signal, and device and method for recording and/or reproducing data on and/or from recording medium |
| 01/08/1997 | CN1139999A Transmission system utilizng different coding principles |
| 01/08/1997 | CN1139842A Process method and device, decoding method and device, transmitting method and recording medium for digital signal |
| 01/08/1997 | CN1139805A Data recording method |
| 01/08/1997 | CA2153423A1 Method and apparatus for implementing a direct-sequence code division multiple access communication system with an m-ary pulse-position modulated spreading-sequence signal |
| 01/07/1997 | US5592398 Multiple channel multiplexing apparatus |
| 01/02/1997 | EP0751520A2 Transmission of digital signals by means of a record carrier |
| 01/02/1997 | EP0751490A2 Speech decoding apparatus |
| 01/02/1997 | EP0750811A1 Process for coding a plurality of audio signals |
| 01/02/1997 | DE19617630A1 Verfahren zum Herleiten der Nachwirkperiode in einem Sprachdecodierer bei diskontinuierlicher Übertragung, sowie Sprachcodierer und Sender-Empfänger A method for deriving the Nachwirkperiode in a speech decoder in the discontinuous transmission, as well as speech encoder and transceiver |
| 12/31/1996 | CA2100073C Prioritization method and device for speech frames coded by a linear predictive coder |
| 12/27/1996 | WO1996042137A1 Best-of-m pulse position modulation detector |
| 12/27/1996 | EP0749647A1 Method and apparatus for determining a masked threshold |
| 12/27/1996 | EP0471799B1 Time domain radio transmission system |
| 12/19/1996 | WO1996041432A1 Fast locking mechanism for channelized ultrawide-band communications |
| 12/18/1996 | EP0749220A2 Coding of data with a fixed word length |
| 12/18/1996 | EP0748542A1 Method and apparatus for optical wireless communication |
| 12/18/1996 | CN1138257A Information data transmission through transmission channel as they are or with redundancy bits of apredetermined length added to each datum |
| 12/18/1996 | CN1033615C Encoder arrangement |
| 12/17/1996 | US5586192 Method of and device for detecting pulsatory interference signals in a sound signal |
| 12/17/1996 | CA2040429C Relay and exchange system for time division multiplex data |
| 12/12/1996 | DE19520952A1 Transmission of digital speech signal along shortwave channel |
| 12/11/1996 | EP0748071A2 Short wave transmission method and apparatus therefor |
| 12/11/1996 | EP0747884A2 Codebook gain attenuation during frame erasures |
| 12/11/1996 | EP0747883A2 Voiced/unvoiced classification of speech for use in speech decoding during frame erasures |
| 12/11/1996 | EP0747882A2 Pitch delay modification during frame erasures |
| 12/11/1996 | EP0746913A1 Process for the cascade coding and decoding of audio data |
| 12/11/1996 | EP0746910A1 Modem-channel bank converter |
| 12/11/1996 | CN1137727A Selector and multiple vocoder interface apparatus for movable communication system and method thereof |
| 12/10/1996 | US5583962 For encoding two or more audio channels |
| 12/08/1996 | CA2177413A1 Codebook gain attenuation during frame erasures |
| 12/04/1996 | EP0746116A2 MPEG audio decoder |
| 12/04/1996 | EP0745290A1 A high-data-rate wireless local-area network |
| 12/04/1996 | EP0377581B1 Analog/digital data storage system |
| 12/03/1996 | US5581653 Low bit-rate high-resolution spectral envelope coding for audio encoder and decoder |
| 12/03/1996 | US5581652 Reconstruction of wideband speech from narrowband speech using codebooks |
| 12/03/1996 | US5581651 Speech signal decoding apparatus and method therefor |
| 12/03/1996 | US5581575 Method and apparatus for transmission of variable rate digital data |
| 11/26/1996 | US5579434 Speech signal bandwidth compression and expansion apparatus, and bandwidth compressing speech signal transmission method, and reproducing method |
| 11/26/1996 | US5579432 Discriminating between stationary and non-stationary signals |
| 11/26/1996 | US5579183 Recording and reproducing an MPEG information signal on/from a record carrier |
| 11/21/1996 | WO1996037048A2 Lossless coding method for waveform data |
| 11/20/1996 | EP0743765A1 Method and device for performing interpolation of digital signal, and device and method for recording and/or reproducing data on and/or from recording medium |
| 11/12/1996 | US5574453 Digital audio recording apparatus |
| 11/07/1996 | WO1996035269A1 Non-linearly quantizing an information signal |
| 11/06/1996 | CN1135273A Method and system for communicating messages |
| 11/05/1996 | US5572681 Speech codec and a method of processing a speech signal with speech codec |
| 10/31/1996 | WO1996034465A1 Method and device for transmitting analogue signals by means of a transmission system using optical transmission lines |
| 10/31/1996 | WO1996034462A1 Full duplex ultrawide-band communication system and method |
| 10/31/1996 | CA2219585A1 Method and device for transmitting analogue signals by means of a transmission system using optical transmission lines |
| 10/31/1996 | CA2219485A1 Full duplex ultrawide-band communication system and method |
| 10/29/1996 | US5570453 Method for generating a spectral noise weighting filter for use in a speech coder |
| 10/24/1996 | WO1996029800A3 Method and apparatus for detecting and indicating collisions over a wireless connection |
| 10/23/1996 | EP0738441A1 Encoding and decoding of a wideband digital information signal |
| 10/22/1996 | US5568514 Signal quantizer with reduced output fluctuation |
| 10/22/1996 | CA2062980C Hybrid modulation apparatus |
| 10/16/1996 | EP0519055B1 Decoder for variable-number of channel presentation of multidimensional sound fields |
| 10/16/1996 | CN1133661A Method and apparatus for the transmission of variable rate digital data |
| 10/15/1996 | US5566306 Transfer control apparatus for independent transfer of data from a storage device to an I/O device over a secondary bus |
| 10/15/1996 | US5566174 MPEG information signal conversion system |
| 10/10/1996 | WO1996031881A1 Recording medium, data transmission method and apparatus, and data reproduction method and apparatus |
| 10/08/1996 | US5563913 For processing an input digital signal |
| 10/08/1996 | US5563912 High efficiency speech coding apparatus and transit switching system employing the same |
| 10/02/1996 | EP0734618A1 Method of mitigating the effects of clipping or quantization in the d/a converter of the transmit path of an echo canceller |
| 10/02/1996 | EP0734617A1 Transmission system utilizing different coding principles |
| 10/02/1996 | CN1132445A Apparatus and method for transmitting, recording and reproducing digital data |
| 10/01/1996 | US5561688 For compressing a stream of coded digital data samples |
| 10/01/1996 | US5561609 Transmission system with reconstruction of missing signal samples |
| 09/26/1996 | WO1996029800A2 Method and apparatus for detecting and indicating collisions over a wireless connection |
| 09/26/1996 | WO1996029789A1 Process for monitoring the quantisation quality in digital radio or television transmission systems |
| 09/25/1996 | EP0734014A1 Coding apparatus |