ClassID:

197423

G10L2019/0016 - 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; Codebooks Codebook for LPC parameters

Recent Application in this class:
#1
20260128048
2026-05-07

VOICE ENHANCEMENT METHOD AND APPARATUS, ELECTRONIC DEVICE, AND STORAGE MEDIUM

#2
20250384890
2025-12-18

CODING DEVICE, DECODING DEVICE, AND METHOD AND PROGRAM THEREOF

#3
20250356867
2025-11-20

Methods, Encoder And Decoder For Linear Predictive Encoding And Decoding Of Sound Signals Upon Transition Between Frames Having Different Sampling Rates

#4
20250210053
2025-06-26

Encoding Method, Decoding Method, Encoding Apparatus, and Decoding Apparatus

#5
20240339119
2024-10-10

CODING DEVICE, DECODING DEVICE, AND METHOD AND PROGRAM THEREOF

#6
20240177722
2024-05-30

Encoding method, decoding method, encoding apparatus, and decoding apparatus

#7
20230326472
2023-10-12

Methods, Encoder And Decoder For Linear Predictive Encoding And Decoding Of Sound Signals Upon Transition Between Frames Having Different Sampling Rates

#8
20230306976
2023-09-28

Coding device, decoding device, and method and program thereof

#9
20230046763
2023-02-16

SPEECH RECOGNITION APPARATUS, CONTROL METHOD, AND NON-TRANSITORY STORAGE MEDIUM

#10
20220366922
2022-11-17

Encoding method, decoding method, encoding apparatus, and decoding apparatus

#11
20210375296
2021-12-02

Methods, encoder and decoder for linear predictive encoding and decoding of sound signals upon transition between frames having different sampling rates

#12
20210335375
2021-10-28

Coding device, decoding device, and method and program thereof

#13
20210335374
2021-10-28

Coding device, decoding device, and method and program thereof

#14
20210335373
2021-10-28

Concept for encoding of information

#15
20210142809
2021-05-13

Apparatus and method realizing improved concepts for TCX LTP

#16
20210098010
2021-04-01

Concept for encoding an audio signal and decoding an audio signal using speech related spectral shaping information

#17
20210098003
2021-04-01

Apparatus and method for improved signal fade out in different domains during error concealment

#18
20210075830
2021-03-11

Terrestrial trunked radio gateway

#19
20200381000
2020-12-03

Encoding method, decoding method, encoding apparatus, and decoding apparatus

#20
20200342882
2020-10-29

Apparatus and method for generating an error concealment signal using power compensation

#21
20200312338
2020-10-01

Apparatus and method for improved signal fade out for switched audio coding systems during error concealment

#22
20200273466
2020-08-27

Apparatus and method for generating an error concealment signal using individual replacement LPC representations for individual codebook information

#23
20200258533
2020-08-13

Signal encoding method and apparatus, and signal decoding method and apparatus

#24
20200258530
2020-08-13

Apparatus and method for generating an adaptive spectral shape of comfort noise

#25
20200258529
2020-08-13

Apparatus and method realizing a fading of an MDCT spectrum to white noise prior to FDNS application

#26
20200234724
2020-07-23

Classification between time-domain coding and frequency domain coding for high bit rates

#27
20200219521
2020-07-09

Concept for encoding an audio signal and decoding an audio signal using deterministic and noise like information

#28
20200176007
2020-06-04

Coding method, device and recording medium

#29
20200176006
2020-06-04

Coding method, device and recording medium

#30
20200090673
2020-03-19

Coding device, decoding device, and method and program thereof

#31
20200035253
2020-01-30

Methods, encoder and decoder for linear predictive encoding and decoding of sound signals upon transition between frames having different sampling rates

#32
20190355369
2019-11-21

Coding device, decoding device, and method and program thereof

#33
20190348054
2019-11-14

Signal encoding method and apparatus, and signal decoding method and apparatus

#34
20190341065
2019-11-07

Concept for encoding of information

#35
20190304476
2019-10-03

Coding device, decoding device, and method and program thereof

#36
20190287545
2019-09-19

Coding device, decoding device, and method and program thereof

#37
20190272838
2019-09-05

Method and apparatus for predicting high band excitation signal

#38
20190206414
2019-07-04

Method, device, and recording medium for coding based on a selected coding processing

#39
20190156840
2019-05-23

Apparatus and method for generating an error concealment signal using power compensation

#40
20190139560
2019-05-09

Encoding method, decoding method, encoding apparatus, and decoding apparatus

#41
20190074018
2019-03-07

Apparatus and method for generating an error concealment signal using individual replacement LPC representations for individual codebook information

#42
20190019524
2019-01-17

Weight function determination device and method for quantizing linear prediction coding coefficient

#43
20180374489
2018-12-27

Bit error detector for an audio signal decoder

#44
20180330741
2018-11-15

Coding device, decoding device, and method and program thereof

#45
20180308495
2018-10-25

Apparatus and method for generating an adaptive spectral shape of comfort noise

#46
20180268825
2018-09-20

Apparatus and method realizing improved concepts for TCX LTP

#47
20180261230
2018-09-13

Apparatus and method for improved signal fade out in different domains during error concealment

#48
20180233153
2018-08-16

Apparatus and method realizing a fading of an MDCT spectrum to white noise prior to FDNS application

#49
20180151184
2018-05-31

Apparatus and method for improved signal fade out for switched audio coding systems during error concealment

#50
20180137871
2018-05-17

Methods, encoder and decoder for linear predictive encoding and decoding of sound signals upon transition between frames having different sampling rates

#51
20180096694
2018-04-05

Coding and decoding a sound signal by adapting coefficients transformable to linear predictive coefficients and/or adapting a code book

#52
20180075856
2018-03-15

Methods, encoder and decoder for linear predictive encoding and decoding of sound signals upon transition between frames having different sampling rates

#53
20180040331
2018-02-08

Classification between time-domain coding and frequency domain coding

#54
20170372713
2017-12-28

Encoding method, decoding method, encoding apparatus, and decoding apparatus

#55
20170323651
2017-11-09

Apparatus and method for generating a frequency enhanced signal using temporal smoothing of subbands

#56
20170287493
2017-10-05

Frame loss compensation processing method and apparatus

#57
20170249949
2017-08-31

Classification between time-domain coding and frequency domain coding

#58
20170249948
2017-08-31

Method and apparatus for predicting high band excitation signal

#59
20170178659
2017-06-22

Method, device and recording medium for coding based on a selected coding processing

#60
20170061976
2017-03-02

Signal encoding method and apparatus, and signal decoding method and apparatus

#61
20170053656
2017-02-23

Coding device, decoding device, method, program and recording medium thereof

#62
20170047075
2017-02-16

Coding device, decoding device, method, program and recording medium thereof

#63
20170004835
2017-01-05

Apparatus, method and corresponding computer program for generating an error concealment signal using power compensation

#64
20170004833
2017-01-05

Apparatus and method for generating an error concealment signal using individual replacement LPC representations for individual codebook information

#65
20160379656
2016-12-29

Concept for encoding of information

#66
20160372133
2016-12-22

Method and device for boosting formants from speech and noise spectral estimation

#67
20160336018
2016-11-17

Weight function determination device and method for quantizing linear prediction coding coefficient

#68
20160329059
2016-11-10

Method and device for pulse encoding, method and device for pulse decoding

#69
20160275959
2016-09-22

Broadband signal generating method and apparatus, and device employing same

#70
20160163325
2016-06-09

Method for speech coding, method for speech decoding and their apparatuses

#71
20160148621
2016-05-26

Apparatus and method for audio signal envelope encoding, processing, and decoding by splitting the audio signal envelope employing distribution quantization and coding

#72
20160140976
2016-05-19

CELP-type speech coding apparatus and method using adaptive and fixed codebooks

#73
20160111101
2016-04-21

Apparatus and method for concealing frame erasure and voice decoding apparatus and method using the same

#74
20160111095
2016-04-21

Apparatus and method for improved signal fade out in different domains during error concealment

#75
20160104500
2016-04-14

Adaptive codebook gain control for speech coding

#76
20160104497
2016-04-14

Apparatus and method for generating an adaptive spectral shape of comfort noise

#77
20160104489
2016-04-14

Apparatus and method realizing improved concepts for TCX LTP

#78
20160104488
2016-04-14

Apparatus and method for improved signal fade out for switched audio coding systems during error concealment

#79
20160104487
2016-04-14

Apparatus and method realizing a fading of an MDCT spectrum to white noise prior to FDNS application

#80
20160042745
2016-02-11

Device and method for quantizing the gains of the adaptive and fixed contributions of the excitation in a CELP codec

#81
20160035370
2016-02-04

Formant dependent speech signal enhancement

#82
20150380007
2015-12-31

Temporal gain adjustment based on high-band signal characteristic

#83
20150380006
2015-12-31

Temporal gain adjustment based on high-band signal characteristic

#84
20150371647
2015-12-24

Correction of frame loss during signal decoding

#85
20150332707
2015-11-19

Apparatus and method for generating a frequency enhancement signal using an energy limitation operation

#86
20150332706
2015-11-19

Apparatus and method for generating a frequency enhanced signal using shaping of the enhancement signal

#87
20150332697
2015-11-19

Apparatus and method for generating a frequency enhanced signal using temporal smoothing of subbands

#88
20150287418
2015-10-08

Method and apparatus for resilient vector quantization

#89
20150262587
2015-09-17

Pitch synchronous speech coding based on timbre vectors

#90
20150255080
2015-09-10

Encoding method, decoding method, encoding apparatus, and decoding apparatus

#91
20130173263
2013-07-04

Quantization device and quantization method

#92
20130024198
2013-01-24

Method for speech coding, method for speech decoding and their apparatuses

#93
20120245930
2012-09-27

Method and apparatus for encoding a speech signal

#94
20120232888
2012-09-13

Apparatus and method for concealing frame erasure and voice decoding apparatus and method using the same

#95
20120150535
2012-06-14

Method for speech coding, method for speech decoding and their apparatuses

#96
20120086586
2012-04-12

Method and device for pulse encoding, method and device for pulse decoding

#97
20110172995
2011-07-14

Method for speech coding, method for speech decoding and their apparatuses

#98
20090182558
2009-07-16

Selection of scalar quantixation (SQ) and vector quantization (VQ) for speech coding

#99
20090164210
2009-06-25

Codebook sharing for LSF quantization

#100
20090157395
2009-06-18

Adaptive codebook gain control for speech coding

#101
20090094025
2009-04-09

Method and apparatus for decoding

#102
20090024386
2009-01-22

Multi-mode speech encoding system for encoding a speech signal used for selection of one of the speech encoding modes including multiple speech encoding rates

#103
20080319740
2008-12-25

Adaptive gain reduction for encoding a speech signal

#104
20080294429
2008-11-27

Adaptive tilt compensation for synthesized speech

#105
20080288246
2008-11-20

Selection of preferential pitch value for speech processing

#106
20080147384
2008-06-19

Pitch determination for speech processing

#107
20080071527
2008-03-20

Method and apparatus for speech encoding by evaluating a noise level based on gain information

#108
20080071526
2008-03-20

Method for speech coding, method for speech decoding and their apparatuses

#109
20080071525
2008-03-20

Method and apparatus for speech encoding by evaluating a noise level based on pitch information

#110
20080071524
2008-03-20

Method for speech coding, method for speech decoding and their apparatuses

#111
20080065394
2008-03-13

Method for speech coding, method for speech decoding and their apparatuses Method for speech coding, method for speech decoding and their apparatuses

#112
20080065385
2008-03-13

Method and apparatus for speech decoding by evaluating a noise level based on gain information

#113
20080065375
2008-03-13

Method for speech coding, method for speech decoding and their apparatuses

#114
20070255561
2007-11-01

System for speech encoding having an adaptive encoding arrangement

#115
20070118379
2007-05-24

Method and apparatus for speech decoding based on a parameter of the adaptive code vector

#116
20070027683
2007-02-01

Apparatus and method for concealing frame erasure and voice decoding apparatus and method using the same

#117
20060089833
2006-04-27

Pitch determination based on weighting of pitch lag candidates

#118
20050256704
2005-11-17

Method for speech coding, method for speech decoding and their apparatuses

#119
20050171770
2005-08-04

Method for speech coding, method for speech decoding and their apparatuses