Patents
Sitemap › G10 - Musical instruments; Acoustics › G10L - Speech analysis or synthesis; Speech recognition; Speech or voice processing; Speech or audio coding or decoding › 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
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)
12/1999
12/28/1999US6009384 Method for coding human speech by joining source frames and an apparatus for reproducing human speech so coded
12/28/1999US6009082 Computer-based multifunction personal communication system with caller ID
12/28/1999US6008838 Multi-point video conference system
12/23/1999WO1999066497A1 Voice/music signal encoder and decoder
12/23/1999WO1999066494A1 Improved lost frame recovery techniques for parametric, lpc-based speech coding systems
12/23/1999CA2335284A1 Speech and music signal coder/decoder
12/22/1999EP0966126A2 Encrypting speech coder
12/22/1999EP0966108A2 Dynamic bit allocation and apparatus and method for audio coding
12/22/1999EP0965128A2 A method and system for manipulation of audio or video signals
12/22/1999EP0965123A1 A high resolution post processing method for a speech decoder
12/22/1999EP0882288B1 Signal processing arrangements
12/22/1999CN1239636A Method and transcoder for performing distributed handover in uplink direction
12/22/1999CN1239368A Dynamic bit allocation apparatus and method for audio coding
12/22/1999CN1239247A Encrypting speech coder
12/21/1999US6006189 Method and apparatus for storing and forwarding voice signals
12/21/1999US6006179 Audio codec using adaptive sparse vector quantization with subband vector classification
12/21/1999US6006178 Speech encoder capable of substantially increasing a codebook size without increasing the number of transmitted bits
12/21/1999US6006177 Apparatus for transmitting synthesized speech with high quality at a low bit rate
12/21/1999US6006176 Speech coding apparatus
12/21/1999US6006174 Multiple impulse excitation speech encoder and decoder
12/21/1999US6005856 Communication protocol for spread spectrum wireless communication system
12/21/1999CA2166040C Device for transmitting, receiving and decoding compressed audiovisual streams
12/16/1999WO1999065017A1 Speech coding apparatus and speech decoding apparatus
12/15/1999EP0964393A1 Speech coding
12/15/1999CN1238514A Phase quantization method and apparatus
12/14/1999US6003004 Speech recognition method and system using compressed speech data
12/14/1999US6003001 Speech encoding method and apparatus
12/14/1999US6003000 Method and system for speech processing with greatly reduced harmonic and intermodulation distortion
12/14/1999US6002999 Interface apparatus and method between a selector and a plurality of vocoders in a mobile communication system
12/09/1999WO1999063523A1 Method and device for voice encoding
12/09/1999WO1999063522A1 Method and device for voice encoding
12/09/1999WO1999063521A1 Signal decomposition method for speech coding
12/09/1999WO1999063520A1 Method and device for masking errors
12/09/1999WO1999063519A1 Voice communication and compression by phoneme recognition
12/09/1999WO1999063443A1 Methods for embedding image, audio and video watermarks in digital data
12/08/1999EP0962097A1 Method of transferring media files over a communications network
12/08/1999EP0962015A1 Method and devices for coding discrete signals or for decoding coded discrete signals
12/08/1999EP0763300A4 Pcs pocket phone/microcell communication over-air protocol
12/08/1999EP0733257A4 Adaptive speech coder having code excited linear prediction with multiple codebook searches
12/07/1999US5999899 Low bit rate audio coder and decoder operating in a transform domain using vector quantization
12/07/1999US5999048 Method and apparatus for spread spectrum pilot extraction for RF amplifiers
12/02/1999WO1999062253A2 Scalable audio coder and decoder
12/02/1999WO1999062189A2 System and method for masking quantization noise of audio signals
12/02/1999WO1999062057A2 Transmission system with improved speech encoder
12/02/1999WO1999062056A1 Voice decoder and voice decoding method
12/02/1999WO1999062055A1 Sound decoder and sound decoding method
12/02/1999WO1999062052A2 System and method for entropy encoding quantized transform coefficients of a signal
12/01/1999EP0961499A1 Predictive coding method and decoding method for dynamic image
12/01/1999EP0961414A2 Method and apparatus for encoding, decoding and compression of audio-type data
12/01/1999EP0961264A1 Emitting/receiving device for the selection of a source coder and methods used therein
12/01/1999EP0961239A2 Digital watermarking and banknotes
12/01/1999CN1237073A Transceiver for selecting source coder and processes carried out in such transceiver
11/1999
11/30/1999US5995923 Method and apparatus for improving the voice quality of tandemed vocoders
11/30/1999US5995512 High speed multimedia data network
11/30/1999US5995493 Transmission of a digital information signal having a specific first sampling frequency
11/25/1999WO1999060815A2 Scalable mixing for speech streaming
11/25/1999WO1999060756A2 Variable bit rate transmission of av signal in packet network
11/25/1999WO1999060719A1 Combined analog/digital data transmission system
11/25/1999WO1999060561A2 Split band linear prediction vocoder
11/25/1999CA2332902A1 Combined analog/digital data transmission system
11/25/1999CA2294308A1 Split band linear prediction vocodor
11/24/1999EP0959621A1 Video copy control with plural embedded signals
11/24/1999EP0959620A1 Video with hidden in-band digital data
11/24/1999EP0958664A2 Audio compression
11/24/1999EP0891617B1 Signal coding and decoding system, particularly for a digital audio signal
11/24/1999EP0532225B1 Method and apparatus for speech coding and decoding
11/24/1999CN1236222A Method and apparatus for sampling-rate conversion of audio signals
11/23/1999US5991727 Voice reproducing apparatus for personal use
11/23/1999US5991725 System and method for enhanced speech quality in voice storage and retrieval systems
11/23/1999US5991717 Analysis-by-synthesis linear predictive speech coder with restricted-position multipulse and transformed binary pulse excitation
11/23/1999US5991716 Transcoder with prevention of tandem coding of speech
11/23/1999US5991715 Perceptual audio signal subband coding using value classes for successive scale factor differences
11/18/1999WO1999059282A2 Delayed packet concealment method and apparatus
11/18/1999WO1999059258A1 Digital hidden data transport (dhdt)
11/18/1999WO1999059140A2 Transmission system using an improved signal encoder and decoder
11/18/1999WO1999059137A1 Speech encoding
11/18/1999WO1999048214A3 Transmitting device for transmitting a digital information signal alternately in encoded form and non-encoded form
11/18/1999CA2332026A1 Speech encoding
11/18/1999CA2331898A1 Digital hidden data transport (dhdt)
11/18/1999CA2329176A1 Delayed packet concealment method and apparatus
11/17/1999EP0957639A2 Digital audio signal decoding apparatus, decoding method and a recording medium storing the decoding steps
11/17/1999EP0957579A1 Method and apparatus for sampling-rate conversion of audio signals
11/17/1999EP0957472A2 Speech coding apparatus and speech decoding apparatus
11/17/1999EP0956559A2 A method and device for interfacing variable-rate sampled digital audio information to a string of uniform-sized blocks, and a unitary medium so produced by a write-interfacing
11/17/1999EP0680643B1 Apparatus and method for compressing information
11/17/1999CN1235427A Decoding device
11/17/1999CN1235335A Method for improving performance of voice coder
11/16/1999US5987418 Synchronous decoding of packetized audio for different reproduction modes
11/16/1999US5987407 Soft-clipping postprocessor scaling decoded audio signal frame saturation regions to approximate original waveform shape and maintain continuity
11/16/1999US5987406 Instability eradication for analysis-by-synthesis speech codecs
11/16/1999US5986928 Method and apparatus for detecting the end of message recorded onto an array of memory elements
11/11/1999WO1999057715A1 A system and method to improve the quality of coded speech coexisting with background noise
11/10/1999EP0955731A2 Lossless encoding and decoding system
11/10/1999EP0955586A1 Coding with modulation, error control, weighting, and bit allocation
11/10/1999EP0954909A1 Method for coding an audio signal
11/10/1999EP0954857A1 Audio-based wide area information system
11/10/1999EP0954853A1 A method of encoding a speech signal
11/10/1999EP0954851A1 Multi-stage speech coder with transform coding of prediction residual signals with quantization by auditory models
11/10/1999EP0954849A2 A method and apparatus for audio representation of speech that has been encoded according to the lpc principle, through adding noise to constituent signals therein
11/10/1999CN1234898A Transmitter with improved speech encoder and decoder
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