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Class Information
Number: 704/219
Name: Data processing: speech signal processing, linguistics, language translation, and audio compression/decompression > Speech signal processing > For storage or transmission > Linear prediction
Description: Subject matter wherein input samples of speech
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7619995 |
Transcoders and mixers for voice-over-IP conferencing |
Nov. 17, 2009 |
| 7617096 |
Robust quantization and inverse quantization using illegal space |
Nov. 10, 2009 |
| 7617097 |
Scalable lossless audio coding/decoding apparatus and method |
Nov. 10, 2009 |
| 7613605 |
Audio signal encoding apparatus and method |
Nov. 3, 2009 |
| 7606703 |
Layered celp system and method with varying perceptual filter or short-term postfilter strengths |
Oct. 20, 2009 |
| 7606702 |
Speech decoder, speech decoding method, program and storage media to improve voice clarity by emphasizing voice tract characteristics using estimated formants |
Oct. 20, 2009 |
| 7599832 |
Method and device for encoding speech using open-loop pitch analysis |
Oct. 6, 2009 |
| 7599833 |
Apparatus and method for coding residual signals of audio signals into a frequency domain and apparatus and method for decoding the same |
Oct. 6, 2009 |
| 7599834 |
Method and apparatus of voice mixing for conferencing amongst diverse networks |
Oct. 6, 2009 |
| 7596492 |
Apparatus and method for concealing highband error in split-band wideband voice codec and decoding |
Sep. 29, 2009 |
| 7596491 |
Layered CELP system and method |
Sep. 29, 2009 |
| 7596490 |
Low bit-rate audio encoding |
Sep. 29, 2009 |
| 7596489 |
Transmission error concealment in an audio signal |
Sep. 29, 2009 |
| 7596488 |
System and method for real-time jitter control and packet-loss concealment in an audio signal |
Sep. 29, 2009 |
| 7593847 |
Pitch detection method and apparatus |
Sep. 22, 2009 |
| 7590532 |
Voice code conversion method and apparatus |
Sep. 15, 2009 |
| 7590527 |
Speech coder using an orthogonal search and an orthogonal search method |
Sep. 15, 2009 |
| 7587313 |
Audio coding |
Sep. 8, 2009 |
| 7587315 |
Concealment of frame erasures and method |
Sep. 8, 2009 |
| 7587314 |
Single-codebook vector quantization for multiple-rate applications |
Sep. 8, 2009 |
| 7577567 |
Multimode speech coding apparatus and decoding apparatus |
Aug. 18, 2009 |
| 7574351 |
Arranging CELP information of one frame in a second packet |
Aug. 11, 2009 |
| 7574354 |
Transcoding between the indices of multipulse dictionaries used in compressive coding of digital signals |
Aug. 11, 2009 |
| 7562021 |
Modification of codewords in dictionary used for efficient coding of digital media spectral data |
Jul. 14, 2009 |
| 7558728 |
Method and device for encoding speech using open-loop pitch analysis |
Jul. 7, 2009 |
| 7548853 |
Scalable compressed audio bit stream and codec using a hierarchical filterbank and multichannel joint coding |
Jun. 16, 2009 |
| 7548852 |
Quality of decoded audio by adding noise |
Jun. 16, 2009 |
| 7546237 |
Bandwidth extension of narrowband speech |
Jun. 9, 2009 |
| 7546239 |
Speech coder and speech decoder |
Jun. 9, 2009 |
| 7542898 |
Pitch cycle search range setting apparatus and pitch cycle search apparatus |
Jun. 2, 2009 |
| 7539615 |
Audio signal quality enhancement in a digital network |
May. 26, 2009 |
| 7536305 |
Mixed lossless audio compression |
May. 19, 2009 |
| 7533016 |
Speech coder and speech decoder |
May. 12, 2009 |
| 7529662 |
LPC-to-MELP transcoder |
May. 5, 2009 |
| 7529663 |
Method for flexible bit rate code vector generation and wideband vocoder employing the same |
May. 5, 2009 |
| 7523032 |
Speech coding method, device, coding module, system and software program product for pre-processing the phase structure of a to be encoded speech signal to match the phase structure of the dec |
Apr. 21, 2009 |
| 7519532 |
Transcoding EVRC to G.729ab |
Apr. 14, 2009 |
| 7516230 |
Method and device for the generation or decoding of a scalable data stream with provision for a bit-store, encoder and scalable encoder |
Apr. 7, 2009 |
| 7516066 |
Audio coding |
Apr. 7, 2009 |
| 7512534 |
Optimized windows and methods therefore for gradient-descent based window optimization for linear prediction analysis in the ITU-T G.723.1 speech coding standard |
Mar. 31, 2009 |
| 7512535 |
Adaptive postfiltering methods and systems for decoding speech |
Mar. 31, 2009 |
| 7505899 |
Speech code sequence converting device and method in which coding is performed by two types of speech coding systems |
Mar. 17, 2009 |
| 7502734 |
Method and device for robust predictive vector quantization of linear prediction parameters in sound signal coding |
Mar. 10, 2009 |
| 7499854 |
Speech coder and speech decoder |
Mar. 3, 2009 |
| 7499853 |
Speech decoder and code error compensation method |
Mar. 3, 2009 |
| 7496504 |
Method and apparatus for searching for combined fixed codebook in CELP speech codec |
Feb. 24, 2009 |
| 7496505 |
Variable rate speech coding |
Feb. 24, 2009 |
| 7496506 |
Method and apparatus for one-stage and two-stage noise feedback coding of speech and audio signals |
Feb. 24, 2009 |
| 7493256 |
Method and apparatus for high performance low bit-rate coding of unvoiced speech |
Feb. 17, 2009 |
| 7493255 |
Generating LSF vectors |
Feb. 17, 2009 |
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