JP5363488B2 - マルチチャネル・オーディオのジョイント強化 - Google Patents
マルチチャネル・オーディオのジョイント強化 Download PDFInfo
- Publication number
- JP5363488B2 JP5363488B2 JP2010525778A JP2010525778A JP5363488B2 JP 5363488 B2 JP5363488 B2 JP 5363488B2 JP 2010525778 A JP2010525778 A JP 2010525778A JP 2010525778 A JP2010525778 A JP 2010525778A JP 5363488 B2 JP5363488 B2 JP 5363488B2
- Authority
- JP
- Japan
- Prior art keywords
- residual
- encoding
- signal
- error
- channel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000002787 reinforcement Effects 0.000 title 1
- 238000000034 method Methods 0.000 claims abstract description 163
- 230000008569 process Effects 0.000 claims abstract description 101
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 10
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 10
- 150000001875 compounds Chemical class 0.000 claims abstract 5
- 239000002131 composite material Substances 0.000 claims description 42
- 230000005236 sound signal Effects 0.000 claims description 18
- 238000013139 quantization Methods 0.000 claims description 17
- 230000005540 biological transmission Effects 0.000 claims description 16
- 230000000875 corresponding effect Effects 0.000 claims description 14
- 238000004091 panning Methods 0.000 claims description 14
- 230000002596 correlated effect Effects 0.000 claims description 12
- 238000004458 analytical method Methods 0.000 claims description 11
- 230000009466 transformation Effects 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 230000014509 gene expression Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 18
- 230000003044 adaptive effect Effects 0.000 description 16
- 239000010410 layer Substances 0.000 description 16
- 238000012545 processing Methods 0.000 description 10
- 239000000243 solution Substances 0.000 description 8
- 230000008901 benefit Effects 0.000 description 7
- 238000004364 calculation method Methods 0.000 description 7
- 230000003595 spectral effect Effects 0.000 description 6
- 230000006978 adaptation Effects 0.000 description 5
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 230000001419 dependent effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 238000000513 principal component analysis Methods 0.000 description 4
- 238000005070 sampling Methods 0.000 description 4
- 239000013598 vector Substances 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 230000000873 masking effect Effects 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 238000010295 mobile communication Methods 0.000 description 3
- 230000008447 perception Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 238000012935 Averaging Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 238000009877 rendering Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 101000591286 Homo sapiens Myocardin-related transcription factor A Proteins 0.000 description 1
- 102100034099 Myocardin-related transcription factor A Human genes 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 239000012792 core layer Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- VJYFKVYYMZPMAB-UHFFFAOYSA-N ethoprophos Chemical compound CCCSP(=O)(OCC)SCCC VJYFKVYYMZPMAB-UHFFFAOYSA-N 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000007562 laser obscuration time method Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000010187 selection method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—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
- G10L19/04—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
- G10L19/16—Vocoder architecture
- G10L19/18—Vocoders using multiple modes
- G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—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
- G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computational Linguistics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Quality & Reliability (AREA)
- Mathematical Physics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US96017507P | 2007-09-19 | 2007-09-19 | |
| US60/960,175 | 2007-09-19 | ||
| PCT/SE2008/000272 WO2009038512A1 (en) | 2007-09-19 | 2008-04-17 | Joint enhancement of multi-channel audio |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2010540985A JP2010540985A (ja) | 2010-12-24 |
| JP2010540985A5 JP2010540985A5 (cg-RX-API-DMAC7.html) | 2011-05-12 |
| JP5363488B2 true JP5363488B2 (ja) | 2013-12-11 |
Family
ID=40468142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2010525778A Expired - Fee Related JP5363488B2 (ja) | 2007-09-19 | 2008-04-17 | マルチチャネル・オーディオのジョイント強化 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US8218775B2 (cg-RX-API-DMAC7.html) |
| EP (1) | EP2201566B1 (cg-RX-API-DMAC7.html) |
| JP (1) | JP5363488B2 (cg-RX-API-DMAC7.html) |
| KR (1) | KR101450940B1 (cg-RX-API-DMAC7.html) |
| CN (1) | CN101802907B (cg-RX-API-DMAC7.html) |
| PL (1) | PL2201566T3 (cg-RX-API-DMAC7.html) |
| WO (1) | WO2009038512A1 (cg-RX-API-DMAC7.html) |
Families Citing this family (54)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009144953A1 (ja) * | 2008-05-30 | 2009-12-03 | パナソニック株式会社 | 符号化装置、復号装置およびこれらの方法 |
| EP2293292B1 (en) * | 2008-06-19 | 2013-06-05 | Panasonic Corporation | Quantizing apparatus, quantizing method and encoding apparatus |
| EP2296143B1 (en) | 2008-06-27 | 2018-01-10 | III Holdings 12, LLC | Audio signal decoding device and balance adjustment method for audio signal decoding device |
| KR101428487B1 (ko) * | 2008-07-11 | 2014-08-08 | 삼성전자주식회사 | 멀티 채널 부호화 및 복호화 방법 및 장치 |
| KR101756834B1 (ko) * | 2008-07-14 | 2017-07-12 | 삼성전자주식회사 | 오디오/스피치 신호의 부호화 및 복호화 방법 및 장치 |
| JP5608660B2 (ja) * | 2008-10-10 | 2014-10-15 | テレフオンアクチーボラゲット エル エム エリクソン(パブル) | エネルギ保存型マルチチャネルオーディオ符号化 |
| CN102292769B (zh) * | 2009-02-13 | 2012-12-19 | 华为技术有限公司 | 一种立体声编码方法和装置 |
| EP2224425B1 (en) * | 2009-02-26 | 2012-02-08 | Honda Research Institute Europe GmbH | An audio signal processing system and autonomous robot having such system |
| US20100223061A1 (en) * | 2009-02-27 | 2010-09-02 | Nokia Corporation | Method and Apparatus for Audio Coding |
| CA3093218C (en) * | 2009-03-17 | 2022-05-17 | Dolby International Ab | Advanced stereo coding based on a combination of adaptively selectable left/right or mid/side stereo coding and of parametric stereo coding |
| GB2470059A (en) * | 2009-05-08 | 2010-11-10 | Nokia Corp | Multi-channel audio processing using an inter-channel prediction model to form an inter-channel parameter |
| CN101556799B (zh) * | 2009-05-14 | 2013-08-28 | 华为技术有限公司 | 一种音频解码方法和音频解码器 |
| CN102440008B (zh) * | 2009-06-01 | 2015-01-21 | 三菱电机株式会社 | 信号处理装置 |
| EP2439736A1 (en) * | 2009-06-02 | 2012-04-11 | Panasonic Corporation | Down-mixing device, encoder, and method therefor |
| KR101641684B1 (ko) * | 2009-08-18 | 2016-07-21 | 삼성전자주식회사 | 디지털 멀티미디어 방송의 전송 장치 및 방법, 수신 장치 및 방법 |
| KR101613975B1 (ko) * | 2009-08-18 | 2016-05-02 | 삼성전자주식회사 | 멀티 채널 오디오 신호의 부호화 방법 및 장치, 그 복호화 방법 및 장치 |
| JP5530454B2 (ja) * | 2009-10-21 | 2014-06-25 | パナソニック株式会社 | オーディオ符号化装置、復号装置、方法、回路およびプログラム |
| WO2011080916A1 (ja) * | 2009-12-28 | 2011-07-07 | パナソニック株式会社 | 音声符号化装置および音声符号化方法 |
| JP5299327B2 (ja) * | 2010-03-17 | 2013-09-25 | ソニー株式会社 | 音声処理装置、音声処理方法、およびプログラム |
| JP5814340B2 (ja) | 2010-04-09 | 2015-11-17 | ドルビー・インターナショナル・アーベー | Mdctベース複素予測ステレオ符号化 |
| US9258429B2 (en) * | 2010-05-18 | 2016-02-09 | Telefonaktiebolaget L M Ericsson | Encoder adaption in teleconferencing system |
| CN102280107B (zh) | 2010-06-10 | 2013-01-23 | 华为技术有限公司 | 边带残差信号生成方法及装置 |
| CN103098131B (zh) * | 2010-08-24 | 2015-03-11 | 杜比国际公司 | 调频立体声无线电接收器的间歇单声道接收的隐藏 |
| JP2013528832A (ja) * | 2010-11-12 | 2013-07-11 | ポリコム,インク. | マルチポイント環境におけるスケーラブルオーディオ処理 |
| JP5582027B2 (ja) * | 2010-12-28 | 2014-09-03 | 富士通株式会社 | 符号器、符号化方法および符号化プログラム |
| EP2661746B1 (en) * | 2011-01-05 | 2018-08-01 | Nokia Technologies Oy | Multi-channel encoding and/or decoding |
| US9460729B2 (en) * | 2012-09-21 | 2016-10-04 | Dolby Laboratories Licensing Corporation | Layered approach to spatial audio coding |
| CN105976824B (zh) * | 2012-12-06 | 2021-06-08 | 华为技术有限公司 | 信号解码的方法和设备 |
| US20150025894A1 (en) * | 2013-07-16 | 2015-01-22 | Electronics And Telecommunications Research Institute | Method for encoding and decoding of multi channel audio signal, encoder and decoder |
| EP2830051A3 (en) | 2013-07-22 | 2015-03-04 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio encoder, audio decoder, methods and computer program using jointly encoded residual signals |
| TWI713018B (zh) | 2013-09-12 | 2020-12-11 | 瑞典商杜比國際公司 | 多聲道音訊系統中之解碼方法、解碼裝置、包含用於執行解碼方法的指令之非暫態電腦可讀取的媒體之電腦程式產品、包含解碼裝置的音訊系統 |
| US9088447B1 (en) * | 2014-03-21 | 2015-07-21 | Mitsubishi Electric Research Laboratories, Inc. | Non-coherent transmission and equalization in doubly-selective MIMO channels |
| KR101641645B1 (ko) * | 2014-06-11 | 2016-07-22 | 전자부품연구원 | 오디오 소스 분리 방법 및 이를 적용한 오디오 시스템 |
| EP3067885A1 (en) | 2015-03-09 | 2016-09-14 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for encoding or decoding a multi-channel signal |
| US10499229B2 (en) * | 2016-01-24 | 2019-12-03 | Qualcomm Incorporated | Enhanced fallback to in-band mode for emergency calling |
| EP3208800A1 (en) | 2016-02-17 | 2017-08-23 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for stereo filing in multichannel coding |
| FR3048808A1 (fr) * | 2016-03-10 | 2017-09-15 | Orange | Codage et decodage optimise d'informations de spatialisation pour le codage et le decodage parametrique d'un signal audio multicanal |
| US10057681B2 (en) | 2016-08-01 | 2018-08-21 | Bose Corporation | Entertainment audio processing |
| US10217468B2 (en) * | 2017-01-19 | 2019-02-26 | Qualcomm Incorporated | Coding of multiple audio signals |
| US10362332B2 (en) * | 2017-03-14 | 2019-07-23 | Google Llc | Multi-level compound prediction |
| WO2018189414A1 (en) * | 2017-04-10 | 2018-10-18 | Nokia Technologies Oy | Audio coding |
| CN107483194A (zh) * | 2017-08-29 | 2017-12-15 | 中国民航大学 | 基于非零脉冲位置和幅度信息的g.729语音信息隐藏算法 |
| CN110556119B (zh) * | 2018-05-31 | 2022-02-18 | 华为技术有限公司 | 一种下混信号的计算方法及装置 |
| EP3841571B1 (en) | 2018-08-21 | 2023-03-22 | Dolby International AB | Methods, apparatuses and systems for generation and processing of immediate playout frames (ipfs) |
| KR102501233B1 (ko) * | 2018-10-22 | 2023-02-20 | 삼성에스디에스 주식회사 | 화상 회의 서비스 방법 및 이를 수행하기 위한 장치 |
| CN113316941B (zh) * | 2019-01-11 | 2022-07-26 | 博姆云360公司 | 声场保存音频通道求和 |
| JP7092050B2 (ja) * | 2019-01-17 | 2022-06-28 | 日本電信電話株式会社 | 多地点制御方法、装置及びプログラム |
| EP3706119A1 (fr) * | 2019-03-05 | 2020-09-09 | Orange | Codage audio spatialisé avec interpolation et quantification de rotations |
| EP3719799A1 (en) * | 2019-04-04 | 2020-10-07 | FRAUNHOFER-GESELLSCHAFT zur Förderung der angewandten Forschung e.V. | A multi-channel audio encoder, decoder, methods and computer program for switching between a parametric multi-channel operation and an individual channel operation |
| GB2586461A (en) * | 2019-08-16 | 2021-02-24 | Nokia Technologies Oy | Quantization of spatial audio direction parameters |
| CN110718211B (zh) * | 2019-09-26 | 2021-12-21 | 东南大学 | 一种基于混合压缩卷积神经网络的关键词识别系统 |
| JPWO2022009505A1 (cg-RX-API-DMAC7.html) * | 2020-07-07 | 2022-01-13 | ||
| GB2598773A (en) * | 2020-09-14 | 2022-03-16 | Nokia Technologies Oy | Quantizing spatial audio parameters |
| US20230230604A1 (en) * | 2022-01-20 | 2023-07-20 | Electronics And Telecommunications Research Institute | Method of encoding audio signal and encoder, method of decoding audio signal and decoder |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5434948A (en) | 1989-06-15 | 1995-07-18 | British Telecommunications Public Limited Company | Polyphonic coding |
| NL9100173A (nl) | 1991-02-01 | 1992-09-01 | Philips Nv | Subbandkodeerinrichting, en een zender voorzien van de kodeerinrichting. |
| US5285498A (en) | 1992-03-02 | 1994-02-08 | At&T Bell Laboratories | Method and apparatus for coding audio signals based on perceptual model |
| DE19742655C2 (de) * | 1997-09-26 | 1999-08-05 | Fraunhofer Ges Forschung | Verfahren und Vorrichtung zum Codieren eines zeitdiskreten Stereosignals |
| US6125348A (en) * | 1998-03-12 | 2000-09-26 | Liquid Audio Inc. | Lossless data compression with low complexity |
| US7231054B1 (en) * | 1999-09-24 | 2007-06-12 | Creative Technology Ltd | Method and apparatus for three-dimensional audio display |
| SE519985C2 (sv) * | 2000-09-15 | 2003-05-06 | Ericsson Telefon Ab L M | Kodning och avkodning av signaler från flera kanaler |
| SE519981C2 (sv) | 2000-09-15 | 2003-05-06 | Ericsson Telefon Ab L M | Kodning och avkodning av signaler från flera kanaler |
| US7437299B2 (en) * | 2002-04-10 | 2008-10-14 | Koninklijke Philips Electronics N.V. | Coding of stereo signals |
| BR0304540A (pt) * | 2002-04-22 | 2004-07-20 | Koninkl Philips Electronics Nv | Métodos para codificar um sinal de áudio, e para decodificar um sinal de áudio codificado, codificador para codificar um sinal de áudio, aparelho para fornecer um sinal de áudio, sinal de áudio codificado, meio de armazenagem, e, decodificador para decodificar um sinal de áudio codificado |
| ES2273216T3 (es) | 2003-02-11 | 2007-05-01 | Koninklijke Philips Electronics N.V. | Codificacion de audio. |
| US7945447B2 (en) * | 2004-12-27 | 2011-05-17 | Panasonic Corporation | Sound coding device and sound coding method |
| US7573912B2 (en) * | 2005-02-22 | 2009-08-11 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschunng E.V. | Near-transparent or transparent multi-channel encoder/decoder scheme |
| WO2006091139A1 (en) | 2005-02-23 | 2006-08-31 | Telefonaktiebolaget Lm Ericsson (Publ) | Adaptive bit allocation for multi-channel audio encoding |
| US9626973B2 (en) * | 2005-02-23 | 2017-04-18 | Telefonaktiebolaget L M Ericsson (Publ) | Adaptive bit allocation for multi-channel audio encoding |
| WO2006109113A2 (en) | 2005-04-12 | 2006-10-19 | Acol Technologies Sa | Primary optic for a light emitting diode |
-
2008
- 2008-04-17 US US12/677,383 patent/US8218775B2/en not_active Expired - Fee Related
- 2008-04-17 WO PCT/SE2008/000272 patent/WO2009038512A1/en not_active Ceased
- 2008-04-17 CN CN2008801083540A patent/CN101802907B/zh not_active Expired - Fee Related
- 2008-04-17 EP EP08753930.0A patent/EP2201566B1/en not_active Not-in-force
- 2008-04-17 PL PL08753930T patent/PL2201566T3/pl unknown
- 2008-04-17 KR KR1020107006915A patent/KR101450940B1/ko not_active Expired - Fee Related
- 2008-04-17 JP JP2010525778A patent/JP5363488B2/ja not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2010540985A (ja) | 2010-12-24 |
| WO2009038512A1 (en) | 2009-03-26 |
| US8218775B2 (en) | 2012-07-10 |
| CN101802907A (zh) | 2010-08-11 |
| EP2201566A4 (en) | 2011-09-28 |
| US20100322429A1 (en) | 2010-12-23 |
| PL2201566T3 (pl) | 2016-04-29 |
| KR101450940B1 (ko) | 2014-10-15 |
| EP2201566B1 (en) | 2015-11-11 |
| CN101802907B (zh) | 2013-11-13 |
| EP2201566A1 (en) | 2010-06-30 |
| KR20100063099A (ko) | 2010-06-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5363488B2 (ja) | マルチチャネル・オーディオのジョイント強化 | |
| JP5608660B2 (ja) | エネルギ保存型マルチチャネルオーディオ符号化 | |
| CA2997331C (en) | Method and system for encoding a stereo sound signal using coding parameters of a primary channel to encode a secondary channel | |
| JP5536674B2 (ja) | 入力データストリームのミキシング及びそこからの出力データストリームの生成 | |
| CN101128866B (zh) | 多声道音频编码中的优化保真度和减少的信令 | |
| CN101611442B (zh) | 编码装置、解码装置以及其方法 | |
| JP5215994B2 (ja) | 損失エンコ−ドされたデータ列および無損失拡張データ列を用いた、原信号の無損失エンコードのための方法および装置 | |
| JP5171256B2 (ja) | ステレオ符号化装置、ステレオ復号装置、及びステレオ符号化方法 | |
| CN101103393B (zh) | 音频信号的可缩放编码/解码 | |
| Lutzky et al. | A guideline to audio codec delay | |
| JPWO2009057327A1 (ja) | 符号化装置および復号装置 | |
| WO2012081166A1 (ja) | 符号化装置、復号装置およびそれらの方法 | |
| US20110093276A1 (en) | Apparatus | |
| KR101462293B1 (ko) | 고정된 배경 잡음의 평활화를 위한 방법 및 장치 | |
| JPWO2008132826A1 (ja) | ステレオ音声符号化装置およびステレオ音声符号化方法 | |
| JPWO2008090970A1 (ja) | ステレオ符号化装置、ステレオ復号装置、およびこれらの方法 | |
| Taleb et al. | G. 719: The first ITU-T standard for high-quality conversational fullband audio coding | |
| Li et al. | Efficient stereo bitrate allocation for fully scalable audio codec |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20110317 |
|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20110317 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20121001 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20121005 |
|
| A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20121205 |
|
| A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20121212 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20130405 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20130430 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20130716 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20130812 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20130905 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 5363488 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |