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Class Information
Number: 704/223
Name: Data processing: speech signal processing, linguistics, language translation, and audio compression/decompression > Speech signal processing > For storage or transmission > Pattern matching vocoders > Excitation patterns
Description: Subject matter wherein the encoding models speech
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7613607 |
Audio enhancement in coded domain |
Nov. 3, 2009 |
| 7606703 |
Layered celp system and method with varying perceptual filter or short-term postfilter strengths |
Oct. 20, 2009 |
| 7606711 |
Audio signal processing device, signal recovering device, audio signal processing method and signal recovering method |
Oct. 20, 2009 |
| 7596491 |
Layered CELP system and method |
Sep. 29, 2009 |
| 7596492 |
Apparatus and method for concealing highband error in split-band wideband voice codec and decoding |
Sep. 29, 2009 |
| 7596493 |
System and method for supporting multiple speech codecs |
Sep. 29, 2009 |
| 7593848 |
Auto-correlators with DC and CW cancellation |
Sep. 22, 2009 |
| 7590527 |
Speech coder using an orthogonal search and an orthogonal search method |
Sep. 15, 2009 |
| 7590096 |
Method and apparatus for improved detection of rate errors in variable rate receivers |
Sep. 15, 2009 |
| 7587315 |
Concealment of frame erasures and method |
Sep. 8, 2009 |
| 7577566 |
Method for encoding sound source of probabilistic code book |
Aug. 18, 2009 |
| 7577567 |
Multimode speech coding apparatus and decoding apparatus |
Aug. 18, 2009 |
| 7574354 |
Transcoding between the indices of multipulse dictionaries used in compressive coding of digital signals |
Aug. 11, 2009 |
| 7571094 |
Circuits, processes, devices and systems for codebook search reduction in speech coders |
Aug. 4, 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 |
| 7536298 |
Method of comfort noise generation for speech communication |
May. 19, 2009 |
| 7533016 |
Speech coder and speech decoder |
May. 12, 2009 |
| 7529663 |
Method for flexible bit rate code vector generation and wideband vocoder employing the same |
May. 5, 2009 |
| 7529662 |
LPC-to-MELP transcoder |
May. 5, 2009 |
| 7519533 |
Fixed codebook searching apparatus and fixed codebook searching method |
Apr. 14, 2009 |
| 7499853 |
Speech decoder and code error compensation method |
Mar. 3, 2009 |
| 7499854 |
Speech coder and speech decoder |
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 |
| 7493256 |
Method and apparatus for high performance low bit-rate coding of unvoiced speech |
Feb. 17, 2009 |
| 7478042 |
Speech decoder that detects stationary noise signal regions |
Jan. 13, 2009 |
| 7472056 |
Transcoder for speech codecs of different CELP type and method therefor |
Dec. 30, 2008 |
| 7467083 |
Data processing apparatus |
Dec. 16, 2008 |
| 7457744 |
Method of estimating pitch by using ratio of maximum peak to candidate for maximum of autocorrelation function and device using the method |
Nov. 25, 2008 |
| 7454328 |
Speech encoding system, and speech encoding method |
Nov. 18, 2008 |
| 7454332 |
Gain constrained noise suppression |
Nov. 18, 2008 |
| 7412381 |
Method and apparatus for diversity control in multiple description voice communication |
Aug. 12, 2008 |
| 7403894 |
Annotating programs for automatic summary generations |
Jul. 22, 2008 |
| 7398206 |
Speech coding apparatus and speech decoding apparatus |
Jul. 8, 2008 |
| 7398205 |
Code excited linear prediction speech decoder and method thereof |
Jul. 8, 2008 |
| 7392180 |
System and method of coding sound signals using sound enhancement |
Jun. 24, 2008 |
| 7389227 |
High-speed search method for LSP quantizer using split VQ and fixed codebook of G.729 speech encoder |
Jun. 17, 2008 |
| 7386444 |
Hybrid speech coding and system |
Jun. 10, 2008 |
| 7383177 |
Method for speech coding, method for speech decoding and their apparatuses |
Jun. 3, 2008 |
| 7373298 |
Apparatus and method for coding excitation signal |
May. 13, 2008 |
| 7373295 |
Speech coder and speech decoder |
May. 13, 2008 |
| 7369543 |
System and method for providing internet based phone conferences using multiple codecs |
May. 6, 2008 |
| 7366461 |
Method and apparatus for improving the quality of a recorded broadcast audio program |
Apr. 29, 2008 |
| 7363219 |
Hybrid speech coding and system |
Apr. 22, 2008 |
| 7363220 |
Method for speech coding, method for speech decoding and their apparatuses |
Apr. 22, 2008 |
| 7359855 |
LPAS speech coder using vector quantized, multi-codebook, multi-tap pitch predictor |
Apr. 15, 2008 |
| 7353168 |
Method and apparatus to eliminate discontinuities in adaptively filtered signals |
Apr. 1, 2008 |
| 7330814 |
Wideband speech coding with modulated noise highband excitation system and method |
Feb. 12, 2008 |
| 7315815 |
LPC-harmonic vocoder with superframe structure |
Jan. 1, 2008 |
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