| Patents for G10L 19 - Speech or audio signal analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis (31,960) |
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| 10/16/1997 | WO1997038416A1 Method and arrangement for reconstruction of a received speech signal |
| 10/16/1997 | WO1997032402A3 Method and arrangement for coding and decoding signals |
| 10/16/1997 | CA2248891A1 Method and arrangement for reconstruction of a received speech signal |
| 10/15/1997 | EP0801377A2 Method and apparatus for coding a signal |
| 10/14/1997 | US5677994 High-efficiency encoding method and apparatus and high-efficiency decoding method and apparatus |
| 10/14/1997 | US5677986 Vector quantizing apparatus |
| 10/14/1997 | US5677985 Speech decoder capable of reproducing well background noise |
| 10/14/1997 | US5677679 Sound device for message decoder |
| 10/09/1997 | DE19613643A1 Verfahren zum Codieren eines mit einer niedrigen Abtastrate digitalisierten Audiosignals A method of encoding a digitized audio signal with a low sampling rate |
| 10/08/1997 | EP0799554A1 System for tdma mobile-to-mobile vselp codec bypass |
| 10/08/1997 | EP0799531A1 Method and apparatus for applying waveform prediction to subbands of a perceptual coding system |
| 10/08/1997 | EP0577809B1 Double mode long term prediction in speech coding |
| 10/07/1997 | US5675703 Apparatus for decoding compressed and coded sound signal |
| 10/07/1997 | US5675702 Multi-segment vector quantizer for a speech coder suitable for use in a radiotelephone |
| 10/07/1997 | US5675701 For use in a communications system decoder |
| 10/07/1997 | US5675610 Digital data encoding apparatus and method thereof |
| 10/02/1997 | WO1997036376A1 Table-based compression with embedded coding |
| 10/02/1997 | WO1997036287A1 Encoding audio signals using precomputed silence |
| 10/02/1997 | WO1997036249A2 Reduced complexity signal transmission system |
| 10/02/1997 | WO1997022201A3 Method and system for transmitting real-time video |
| 10/01/1997 | EP0798869A2 Compressed audio signal processing |
| 10/01/1997 | EP0798696A2 Speech processing method and apparatus |
| 10/01/1997 | EP0797824A1 Speech processing |
| 09/30/1997 | US5673364 System and method for compression and decompression of audio signals |
| 09/30/1997 | US5673363 Error concealment method and apparatus of audio signals |
| 09/30/1997 | US5673361 System and method for performing predictive scaling in computing LPC speech coding coefficients |
| 09/30/1997 | US5673289 Method for encoding digital audio signals and apparatus thereof |
| 09/30/1997 | US5673268 Method of maintaining a modem connection over a telephone line |
| 09/30/1997 | US5673257 Computer-based multifunction personal communication system |
| 09/30/1997 | US5673210 Signal restoration using left-sided and right-sided autoregressive parameters |
| 09/30/1997 | US5673206 Real-time digital audio compression/decompression system |
| 09/24/1997 | EP0797324A2 Enhanced joint stereo coding method using temporal envelope shaping |
| 09/24/1997 | EP0797313A2 Switched filterbank for use in audio signal coding |
| 09/24/1997 | EP0796490A1 Signal prediction method and device for a speech coder |
| 09/24/1997 | CN1160328A Acquiring and error recovery of audio data carried in packetized data stream |
| 09/23/1997 | US5671327 Speech encoding apparatus utilizing stored code data |
| 09/23/1997 | US5671219 Communication protocol for spread spectrum communication |
| 09/23/1997 | US5670730 Data protocol and method for segmenting memory for a music chip |
| 09/23/1997 | CA2111290C Robust vector quantization of line spectral frequencies |
| 09/17/1997 | EP0795964A2 Digital audio signal processor having small input buffer |
| 09/17/1997 | CN1159691A Method for linear predictive analyzing audio signals |
| 09/17/1997 | CN1159682A A/D and D/A converter |
| 09/17/1997 | CN1159639A Rate changeable vocoder |
| 09/16/1997 | US5668925 Low data rate speech encoder with mixed excitation |
| 09/16/1997 | US5668924 Digital sound recording and reproduction device using a coding technique to compress data for reduction of memory requirements |
| 09/12/1997 | WO1997033220A1 Dictation and transcription apparatus |
| 09/10/1997 | CN1159260A Sound decoding device |
| 09/10/1997 | CN1159047A Audio signal decoding apparatus and method for disc driving system |
| 09/10/1997 | CN1159044A Voice coder |
| 09/09/1997 | US5666465 Speech parameter encoder |
| 09/09/1997 | US5666464 For coding an input speech signal |
| 09/09/1997 | US5666350 Apparatus and method for coding excitation parameters in a very low bit rate voice messaging system |
| 09/04/1997 | WO1997032428A1 Training process |
| 09/04/1997 | WO1997032402A2 Method and arrangement for coding and decoding signals |
| 09/03/1997 | EP0793218A2 Speech synthesis method and apparatus |
| 09/03/1997 | EP0792502A1 Very low bit rate voice messaging system using asymmetric voice compression processing |
| 09/03/1997 | CN1158665A Vector encoding method and encoder/decoder using the method |
| 09/02/1997 | US5664218 Integrated multimedia input/output processor |
| 09/02/1997 | US5664055 CS-ACELP speech compression system with adaptive pitch prediction filter gain based on a measure of periodicity |
| 09/02/1997 | US5664054 Spike code-excited linear prediction |
| 09/02/1997 | US5664053 Predictive split-matrix quantization of spectral parameters for efficient coding of speech |
| 09/02/1997 | US5664051 Method and apparatus for phase synthesis for speech processing |
| 08/28/1997 | WO1997031368A1 Signal processing arrangements |
| 08/28/1997 | WO1997031367A1 Multi-stage speech coder with transform coding of prediction residual signals with quantization by auditory models |
| 08/28/1997 | CA2219358A1 Speech signal quantization using human auditory models in predictive coding systems |
| 08/27/1997 | EP0791263A1 Computer-based multifunction personal communication system with caller id |
| 08/27/1997 | CN1158194A Detection of defective speech frames in a receiver of a digital speech communication system |
| 08/26/1997 | US5661728 Decoder for audio signals of compressed and coded audiovisual streams |
| 08/21/1997 | WO1997030525A1 Reduced complexity signal transmission system |
| 08/21/1997 | WO1997030524A1 Reduced complexity signal transmission system |
| 08/21/1997 | WO1997030438A1 Celp speech coder with reduced complexity synthesis filter |
| 08/20/1997 | CN1157665A Signal-processing method and device for block-coded audio signals of audio communication system |
| 08/20/1997 | CN1157452A Method and apparatus for synthesizing speech |
| 08/19/1997 | US5659661 Speech decoder |
| 08/19/1997 | US5659659 Speech compressor using trellis encoding and linear prediction |
| 08/19/1997 | US5659313 System and method for reducing noise during analog to digital conversion |
| 08/14/1997 | WO1997029578A2 Dictation system |
| 08/14/1997 | WO1997029555A1 N-channel transmission, compatible with 2-channel transmission and 1-channel transmission |
| 08/14/1997 | WO1997029554A1 7-channel transmission, compatible with 5-channel transmission and 2-channel transmission |
| 08/14/1997 | WO1997029482A1 Speech coding, reconstruction and recognition using acoustics and electromagnetic waves |
| 08/13/1997 | EP0789454A2 Non-uniform filters |
| 08/13/1997 | EP0587733B1 Low computational-complexity digital filter bank |
| 08/13/1997 | CN1156872A Speech encoding method and apparatus |
| 08/12/1997 | US5657422 Voice activity detection driven noise remediator |
| 08/12/1997 | US5657421 Speech signal transmitter wherein coding is maintained during speech pauses despite substantial shut down of the transmitter |
| 08/12/1997 | US5657420 Variable rate vocoder |
| 08/12/1997 | US5657419 Method for processing speech signal in speech processing system |
| 08/12/1997 | US5657418 Provision of speech coder gain information using multiple coding modes |
| 08/12/1997 | US5657350 Audio coder/decoder with recursive determination of prediction coefficients based on reflection coefficients derived from correlation coefficients |
| 08/12/1997 | US5657349 Method and apparatus capable of quickly identifying an unknown system with a final error reduced |
| 08/06/1997 | EP0788091A2 Speech encoding and decoding method and apparatus therefor |
| 08/06/1997 | EP0615674A4 Network echo canceller. |
| 08/06/1997 | CN1156303A Voice coding method and device and voice decoding method and device |
| 08/05/1997 | US5654990 Real-time digital audio compression/decompression system |
| 08/05/1997 | US5654964 Asynchronous transmission mode speech coding system |
| 08/05/1997 | US5654952 Device for compressing digital signals |
| 08/05/1997 | US5654706 System for variable length decoding digital transmission data which has been compressed by selecting a scanning pattern |
| 08/03/1997 | WO1996024925A1 Algebraic codebook with signal-selected pulse amplitudes for fast coding of speech |
| 07/31/1997 | WO1997027578A1 Very low bit rate time domain speech analyzer for voice messaging |
| 07/30/1997 | EP0786762A1 Vector encoding method and encoder/decoder using the method |