JP2004520740A5 - - Google Patents
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- JP2004520740A5 JP2004520740A5 JP2002558261A JP2002558261A JP2004520740A5 JP 2004520740 A5 JP2004520740 A5 JP 2004520740A5 JP 2002558261 A JP2002558261 A JP 2002558261A JP 2002558261 A JP2002558261 A JP 2002558261A JP 2004520740 A5 JP2004520740 A5 JP 2004520740A5
- Authority
- JP
- Japan
- Prior art keywords
- blocks
- aac
- celp
- latm
- superframes
- 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.)
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Description
MPEG4の中で表に示されているように、CELPフレームの個数に対するAACフレームの個数という点で、スーパーフレームは様々な比率の個数を持つことができる。そのため、1つのスーパーフレームは、例えば1個のAACブロックと1〜12個のCELPブロックを持つことができ、あるいは3個のAACブロックと8個のCELPブロックを持つことができる。しかし、構成によってはまた、CELPブロックよりも多い個数のAACブロックを持つことも可能である。1つのLATM決定データブロックを備えた1つのLATMフレームは、1個または数個のスーパーフレームを含む。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10102155A DE10102155C2 (de) | 2001-01-18 | 2001-01-18 | Verfahren und Vorrichtung zum Erzeugen eines skalierbaren Datenstroms und Verfahren und Vorrichtung zum Decodieren eines skalierbaren Datenstroms |
PCT/EP2002/000297 WO2002058054A1 (de) | 2001-01-18 | 2002-01-14 | Verfahren und vorrichtung zum erzeugen eines skalierbaren datenstroms und verfahren und vorrichtung zum decodieren eines skalierbaren datenstroms |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2004520740A JP2004520740A (ja) | 2004-07-08 |
JP2004520740A5 true JP2004520740A5 (ja) | 2005-08-25 |
JP3890299B2 JP3890299B2 (ja) | 2007-03-07 |
Family
ID=7670984
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2002558261A Expired - Lifetime JP3890299B2 (ja) | 2001-01-18 | 2002-01-14 | スケーラブルデータストリームを生成する方法と装置およびスケーラブルデータストリームを復号化する方法と装置 |
Country Status (9)
Country | Link |
---|---|
US (1) | US7454353B2 (ja) |
EP (1) | EP1327243B1 (ja) |
JP (1) | JP3890299B2 (ja) |
KR (1) | KR100546894B1 (ja) |
AT (1) | ATE259533T1 (ja) |
CA (1) | CA2428477C (ja) |
DE (2) | DE10102155C2 (ja) |
HK (1) | HK1057123A1 (ja) |
WO (1) | WO2002058054A1 (ja) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3881943B2 (ja) * | 2002-09-06 | 2007-02-14 | 松下電器産業株式会社 | 音響符号化装置及び音響符号化方法 |
EP1841072B1 (de) * | 2006-03-30 | 2016-06-01 | Unify GmbH & Co. KG | Verfahren und Einrichtung zum Dekodieren von schichtkodierten Daten |
KR20080053739A (ko) * | 2006-12-11 | 2008-06-16 | 삼성전자주식회사 | 적응적으로 윈도우 크기를 적용하는 부호화 장치 및 방법 |
FR2911228A1 (fr) * | 2007-01-05 | 2008-07-11 | France Telecom | Codage par transformee, utilisant des fenetres de ponderation et a faible retard. |
CN104240713A (zh) | 2008-09-18 | 2014-12-24 | 韩国电子通信研究院 | 编码方法和解码方法 |
TWI384459B (zh) * | 2009-07-22 | 2013-02-01 | Mstar Semiconductor Inc | 音框檔頭之自動偵測方法 |
CN101989429B (zh) * | 2009-07-31 | 2012-02-01 | 华为技术有限公司 | 转码方法、装置、设备以及系统 |
WO2011061958A1 (ja) * | 2009-11-17 | 2011-05-26 | シャープ株式会社 | 復号化装置、復号化装置の制御方法、伝送システム、および制御プログラムを記録したコンピュータ読み取り可能な記録媒体 |
US8811765B2 (en) | 2009-11-17 | 2014-08-19 | Sharp Kabushiki Kaisha | Encoding device configured to generate a frequency component extraction signal, control method for an encoding device using the frequency component extraction signal, transmission system, and computer-readable recording medium having a control program recorded thereon |
US10115386B2 (en) * | 2009-11-18 | 2018-10-30 | Qualcomm Incorporated | Delay techniques in active noise cancellation circuits or other circuits that perform filtering of decimated coefficients |
WO2013142650A1 (en) | 2012-03-23 | 2013-09-26 | Dolby International Ab | Enabling sampling rate diversity in a voice communication system |
EP2980794A1 (en) * | 2014-07-28 | 2016-02-03 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio encoder and decoder using a frequency domain processor and a time domain processor |
EP2980795A1 (en) * | 2014-07-28 | 2016-02-03 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio encoding and decoding using a frequency domain processor, a time domain processor and a cross processor for initialization of the time domain processor |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3943879B4 (de) * | 1989-04-17 | 2008-07-17 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Digitales Codierverfahren |
DE19549621B4 (de) | 1995-10-06 | 2004-07-01 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Vorrichtung zum Codieren von Audiosignalen |
US6092041A (en) * | 1996-08-22 | 2000-07-18 | Motorola, Inc. | System and method of encoding and decoding a layered bitstream by re-applying psychoacoustic analysis in the decoder |
KR100261254B1 (ko) * | 1997-04-02 | 2000-07-01 | 윤종용 | 비트율 조절이 가능한 오디오 데이터 부호화/복호화방법 및 장치 |
KR100261253B1 (ko) * | 1997-04-02 | 2000-07-01 | 윤종용 | 비트율 조절이 가능한 오디오 부호화/복호화 방법및 장치 |
DE19747132C2 (de) * | 1997-10-24 | 2002-11-28 | Fraunhofer Ges Forschung | Verfahren und Vorrichtungen zum Codieren von Audiosignalen sowie Verfahren und Vorrichtungen zum Decodieren eines Bitstroms |
KR100335609B1 (ko) * | 1997-11-20 | 2002-10-04 | 삼성전자 주식회사 | 비트율조절이가능한오디오부호화/복호화방법및장치 |
AU1928999A (en) * | 1997-12-19 | 1999-07-12 | Kenneth Rose | Scalable predictive coding method and apparatus |
WO1999050828A1 (en) * | 1998-03-30 | 1999-10-07 | Voxware, Inc. | Low-complexity, low-delay, scalable and embedded speech and audio coding with adaptive frame loss concealment |
US6029126A (en) * | 1998-06-30 | 2000-02-22 | Microsoft Corporation | Scalable audio coder and decoder |
US6275531B1 (en) * | 1998-07-23 | 2001-08-14 | Optivision, Inc. | Scalable video coding method and apparatus |
US6182031B1 (en) * | 1998-09-15 | 2001-01-30 | Intel Corp. | Scalable audio coding system |
JP2000307661A (ja) * | 1999-04-22 | 2000-11-02 | Matsushita Electric Ind Co Ltd | 符号化装置および復号化装置 |
US7245663B2 (en) * | 1999-07-06 | 2007-07-17 | Koninklijke Philips Electronis N.V. | Method and apparatus for improved efficiency in transmission of fine granular scalable selective enhanced images |
US6263022B1 (en) * | 1999-07-06 | 2001-07-17 | Philips Electronics North America Corp. | System and method for fine granular scalable video with selective quality enhancement |
US6446037B1 (en) * | 1999-08-09 | 2002-09-03 | Dolby Laboratories Licensing Corporation | Scalable coding method for high quality audio |
-
2001
- 2001-01-18 DE DE10102155A patent/DE10102155C2/de not_active Expired - Lifetime
-
2002
- 2002-01-14 WO PCT/EP2002/000297 patent/WO2002058054A1/de active IP Right Grant
- 2002-01-14 CA CA002428477A patent/CA2428477C/en not_active Expired - Lifetime
- 2002-01-14 KR KR1020037009442A patent/KR100546894B1/ko active IP Right Grant
- 2002-01-14 EP EP02702266A patent/EP1327243B1/de not_active Expired - Lifetime
- 2002-01-14 US US10/450,375 patent/US7454353B2/en active Active
- 2002-01-14 JP JP2002558261A patent/JP3890299B2/ja not_active Expired - Lifetime
- 2002-01-14 DE DE50200242T patent/DE50200242D1/de not_active Expired - Lifetime
- 2002-01-14 AT AT02702266T patent/ATE259533T1/de active
-
2003
- 2003-12-23 HK HK03109333A patent/HK1057123A1/xx not_active IP Right Cessation
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