BR9705838A - Processos e aparelho de codificação/decodificação escalonável - Google Patents
Processos e aparelho de codificação/decodificação escalonávelInfo
- Publication number
- BR9705838A BR9705838A BR9705838A BR9705838A BR9705838A BR 9705838 A BR9705838 A BR 9705838A BR 9705838 A BR9705838 A BR 9705838A BR 9705838 A BR9705838 A BR 9705838A BR 9705838 A BR9705838 A BR 9705838A
- Authority
- BR
- Brazil
- Prior art keywords
- decoding processes
- scalable encoding
- scalable
- encoding
- decoding
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/12—Analogue/digital converters
- H03M1/14—Conversion in steps with each step involving the same or a different conversion means and delivering more than one bit
-
- 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
- G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
-
- 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
- G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
- G10L19/032—Quantisation or dequantisation of spectral components
- G10L19/035—Scalar quantisation
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
- H04B1/665—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using psychoacoustic properties of the ear, e.g. masking effect
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
- H04N19/184—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being bits, e.g. of the compressed video stream
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Computational Linguistics (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Acoustics & Sound (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Quality & Reliability (AREA)
- Computer Networks & Wireless Communication (AREA)
- Theoretical Computer Science (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR19970012233 | 1997-04-02 | ||
KR1019970061300A KR100261254B1 (ko) | 1997-04-02 | 1997-11-19 | 비트율 조절이 가능한 오디오 데이터 부호화/복호화방법 및 장치 |
Publications (2)
Publication Number | Publication Date |
---|---|
BR9705838A true BR9705838A (pt) | 1999-07-13 |
BR9705838B1 BR9705838B1 (pt) | 2010-06-29 |
Family
ID=26632642
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR9705838A BR9705838B1 (pt) | 1997-04-02 | 1997-12-29 | processo de codificação de áudio escalonável, aparelho de codificação de sinais de áudio, processo de decodificação de áudio escalonável, e aparelho de decodificação de áudio escalonável. |
Country Status (12)
Country | Link |
---|---|
US (2) | US6094636A (pt) |
EP (1) | EP0869622B1 (pt) |
JP (1) | JP3354863B2 (pt) |
KR (1) | KR100261254B1 (pt) |
CN (1) | CN1154085C (pt) |
BR (1) | BR9705838B1 (pt) |
DE (1) | DE69732761T2 (pt) |
EG (1) | EG21303A (pt) |
ID (1) | ID19832A (pt) |
IL (1) | IL122669A (pt) |
MY (1) | MY117039A (pt) |
RU (1) | RU2224302C2 (pt) |
Families Citing this family (105)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19706516C1 (de) * | 1997-02-19 | 1998-01-15 | Fraunhofer Ges Forschung | Verfahren und Vorricntungen zum Codieren von diskreten Signalen bzw. zum Decodieren von codierten diskreten Signalen |
JP2000509873A (ja) * | 1997-02-21 | 2000-08-02 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | ビデオ画像を記録し及び再生する方法及び装置 |
KR100482282B1 (ko) * | 1997-07-03 | 2005-07-11 | 주식회사 팬택앤큐리텔 | 신축형(스케일러블)부호화시고위계층(EnhancementLayer)부호화방법 |
US6405338B1 (en) * | 1998-02-11 | 2002-06-11 | Lucent Technologies Inc. | Unequal error protection for perceptual audio coders |
KR100548891B1 (ko) * | 1998-06-15 | 2006-02-02 | 마츠시타 덴끼 산교 가부시키가이샤 | 음성 부호화 장치 및 음성 부호화 방법 |
JP3515903B2 (ja) * | 1998-06-16 | 2004-04-05 | 松下電器産業株式会社 | オーディオ符号化のための動的ビット割り当て方法及び装置 |
US6185525B1 (en) * | 1998-10-13 | 2001-02-06 | Motorola | Method and apparatus for digital signal compression without decoding |
GB9910002D0 (en) * | 1999-05-01 | 1999-06-30 | King S College London | Audio signal encoders and decoders |
US6446037B1 (en) * | 1999-08-09 | 2002-09-03 | Dolby Laboratories Licensing Corporation | Scalable coding method for high quality audio |
DE60022732T2 (de) * | 1999-08-27 | 2006-06-14 | Koninkl Philips Electronics Nv | Audiokodierung |
DE19947877C2 (de) * | 1999-10-05 | 2001-09-13 | Fraunhofer Ges Forschung | Verfahren und Vorrichtung zum Einbringen von Informationen in einen Datenstrom sowie Verfahren und Vorrichtung zum Codieren eines Audiosignals |
US6778953B1 (en) * | 2000-06-02 | 2004-08-17 | Agere Systems Inc. | Method and apparatus for representing masked thresholds in a perceptual audio coder |
US6718507B1 (en) * | 2000-09-12 | 2004-04-06 | At&T Corp. | System and method for representing compressed information |
BR0107307A (pt) * | 2000-10-11 | 2002-08-13 | Koninkl Philips Electronics Nv | Métodos para codificar um objeto de multimìdia, para controlar pelo menos um fluxo de bits, para transmitir pelo menos um objeto de multimidia, e para receber pelo menos um fluxo de bits, dispositivo para codificar um objetos de miltimìdia, transmissor, controlador, receptor, multiplexador ou nó de rede, fluxo de bits, e, meio de armazenamento |
EP1199711A1 (en) * | 2000-10-20 | 2002-04-24 | Telefonaktiebolaget Lm Ericsson | Encoding of audio signal using bandwidth expansion |
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DE10102154C2 (de) * | 2001-01-18 | 2003-02-13 | Fraunhofer Ges Forschung | Verfahren und Vorrichtung zum Erzeugen eines skalierbaren Datenstroms und Verfahren und Vorrichtung zum Decodieren eines skalierbaren Datenstroms unter Berücksichtigung einer Bitsparkassenfunktion |
DE10102155C2 (de) * | 2001-01-18 | 2003-01-09 | Fraunhofer Ges Forschung | Verfahren und Vorrichtung zum Erzeugen eines skalierbaren Datenstroms und Verfahren und Vorrichtung zum Decodieren eines skalierbaren Datenstroms |
US7237032B2 (en) * | 2001-02-16 | 2007-06-26 | Microsoft Corporation | Progressive streaming media rendering |
US20020133246A1 (en) * | 2001-03-02 | 2002-09-19 | Hong-Kee Kim | Method of editing audio data and recording medium thereof and digital audio player |
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AU2002343212B2 (en) * | 2001-11-14 | 2006-03-09 | Panasonic Intellectual Property Corporation Of America | Encoding device, decoding device, and system thereof |
DE10200653B4 (de) | 2002-01-10 | 2004-05-27 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Skalierbarer Codierer, Verfahren zum Codieren, Decodierer und Verfahren zum Decodieren für einen skalierten Datenstrom |
US20040071083A1 (en) * | 2002-02-22 | 2004-04-15 | Koninklijke Philips Electronics N.V. | Method for streaming fine granular scalability coded video over an IP network |
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-
1997
- 1997-11-19 KR KR1019970061300A patent/KR100261254B1/ko not_active IP Right Cessation
- 1997-11-26 US US08/979,175 patent/US6094636A/en not_active Expired - Lifetime
- 1997-12-18 IL IL12266997A patent/IL122669A/xx not_active IP Right Cessation
- 1997-12-23 DE DE1997632761 patent/DE69732761T2/de not_active Expired - Lifetime
- 1997-12-23 EP EP19970310484 patent/EP0869622B1/en not_active Expired - Lifetime
- 1997-12-24 ID ID973984A patent/ID19832A/id unknown
- 1997-12-28 EG EG141197A patent/EG21303A/xx active
- 1997-12-29 BR BR9705838A patent/BR9705838B1/pt not_active IP Right Cessation
- 1997-12-29 MY MYPI9706394 patent/MY117039A/en unknown
- 1997-12-30 CN CNB971234787A patent/CN1154085C/zh not_active Expired - Fee Related
- 1997-12-30 RU RU97122037A patent/RU2224302C2/ru not_active IP Right Cessation
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1998
- 1998-02-27 JP JP4844398A patent/JP3354863B2/ja not_active Expired - Fee Related
- 1998-04-02 US US09/053,664 patent/US6108625A/en not_active Expired - Lifetime
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JPH10285042A (ja) | 1998-10-23 |
IL122669A (en) | 2000-12-06 |
DE69732761D1 (de) | 2005-04-21 |
ID19832A (id) | 1998-08-06 |
CN1154085C (zh) | 2004-06-16 |
RU2224302C2 (ru) | 2004-02-20 |
US6094636A (en) | 2000-07-25 |
CN1195160A (zh) | 1998-10-07 |
KR19980079476A (ko) | 1998-11-25 |
KR100261254B1 (ko) | 2000-07-01 |
MY117039A (en) | 2004-04-30 |
IL122669A0 (en) | 1998-08-16 |
EG21303A (en) | 2001-07-31 |
US6108625A (en) | 2000-08-22 |
EP0869622B1 (en) | 2005-03-16 |
EP0869622A3 (en) | 2000-09-06 |
BR9705838B1 (pt) | 2010-06-29 |
EP0869622A2 (en) | 1998-10-07 |
DE69732761T2 (de) | 2006-04-13 |
JP3354863B2 (ja) | 2002-12-09 |
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