ClassID:

197452

G10L19/097 - CPC Classification

Classification description:

Speech or audio signals 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 using predictive techniques; Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters using prototype waveform decomposition or prototype waveform interpolative [PWI] coders

Recent Application in this class:
#1
20190066709
2019-02-28

Early transmission in packetized speech

#2
20140236584
2014-08-21

Systems and methods for quantizing and dequantizing phase information

#3
20120284021
2012-11-08

CONCEALING AUDIO INTERRUPTIONS

#4
20120072209
2012-03-22

Estimating a pitch lag

#5
20120072208
2012-03-22

Determining pitch cycle energy and scaling an excitation signal

#6
20120065980
2012-03-15

Coding and decoding a transient frame

#7
20110087488
2011-04-14

Speech synthesis apparatus and method

#8
20100100390
2010-04-22

Audio encoding apparatus, audio decoding apparatus, and audio encoded information transmitting apparatus

#9
20090326950
2009-12-31

Voice waveform interpolating apparatus and method

#10
20090319262
2009-12-24

Coding scheme selection for low-bit-rate applications

#11
20090316598
2009-12-24

Method and apparatus for obtaining an attenuation factor

#12
20090116486
2009-05-07

Method and apparatus for obtaining an attenuation factor

#13
20090055171
2009-02-26

BUZZ REDUCTION FOR LOW-COMPLEXITY FRAME ERASURE CONCEALMENT

#14
20090022361
2009-01-22

Audio content digital watermark detection

#15
20080312917
2008-12-18

Method and apparatus for predictively quantizing voiced speech

#16
20080004867
2008-01-03

Waveform interpolation speech coding apparatus and method for reducing complexity thereof

#17
20070271091
2007-11-22

Apparatus, method and program for voice signal interpolation

#18
20070208791
2007-09-06

Method and apparatus for the compression and decompression of audio files using a chaotic system

#19
20070185708
2007-08-09

Systems, methods, and apparatus for computationally efficient, iterative alignment of speech waveforms

#20
20070162236
2007-07-12

Dimensional vector and variable resolution quantization

#21
20070027684
2007-02-01

Method for reducing decoder complexity in waveform interpolation speech decoding by converting dimension of vector

#22
20060195315
2006-08-31

Sound synthesis processing system

#23
20060087464
2006-04-27

Digital signal processing method, processor thereof, program thereof, and recording medium containing the program

#24
20060069554
2006-03-30

REW parametric vector quantization and dual-predictive SEW vector quantization for waveform interpolative coding

#25
20060015329
2006-01-19

Apparatus and method for audio coding

#26
20050234728
2005-10-20

Audio content digital watermark detection

#27
20050119880
2005-06-02

Method and apparatus for subsampling phase spectrum information