BRPI0817800A2 - Método e aparelho para a geração de uma camada de melhoramento em um sistema de codificação de áudio - Google Patents

Método e aparelho para a geração de uma camada de melhoramento em um sistema de codificação de áudio

Info

Publication number
BRPI0817800A2
BRPI0817800A2 BRPI0817800-3A BRPI0817800A BRPI0817800A2 BR PI0817800 A2 BRPI0817800 A2 BR PI0817800A2 BR PI0817800 A BRPI0817800 A BR PI0817800A BR PI0817800 A2 BRPI0817800 A2 BR PI0817800A2
Authority
BR
Brazil
Prior art keywords
generating
enhancement layer
coding system
audio coding
audio
Prior art date
Application number
BRPI0817800-3A
Other languages
English (en)
Inventor
James P Ashley
Jonathan Alastair Gibbs
Udar Mittal
Original Assignee
Motorola Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Motorola Inc filed Critical Motorola Inc
Publication of BRPI0817800A2 publication Critical patent/BRPI0817800A2/pt
Publication of BRPI0817800A8 publication Critical patent/BRPI0817800A8/pt

Links

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
BRPI0817800A 2007-10-25 2008-09-25 Método e aparelho para a geração de uma camada de melhoramento em um sistema de codificação de áudio BRPI0817800A8 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US98256607P 2007-10-25 2007-10-25
US12/187,423 US8209190B2 (en) 2007-10-25 2008-08-07 Method and apparatus for generating an enhancement layer within an audio coding system
PCT/US2008/077693 WO2009055192A1 (en) 2007-10-25 2008-09-25 Method and apparatus for generating an enhancement layer within an audio coding system

Publications (2)

Publication Number Publication Date
BRPI0817800A2 true BRPI0817800A2 (pt) 2015-03-24
BRPI0817800A8 BRPI0817800A8 (pt) 2015-11-03

Family

ID=39930381

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0817800A BRPI0817800A8 (pt) 2007-10-25 2008-09-25 Método e aparelho para a geração de uma camada de melhoramento em um sistema de codificação de áudio

Country Status (8)

Country Link
US (1) US8209190B2 (pt)
EP (1) EP2206112A1 (pt)
KR (1) KR101125429B1 (pt)
CN (1) CN101836252B (pt)
BR (1) BRPI0817800A8 (pt)
MX (1) MX2010004479A (pt)
RU (1) RU2469422C2 (pt)
WO (1) WO2009055192A1 (pt)

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TWI866996B (zh) 2019-06-26 2024-12-21 美商杜拜研究特許公司 具有改善頻率解析度的低延遲音訊濾波器組
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Also Published As

Publication number Publication date
RU2469422C2 (ru) 2012-12-10
RU2010120878A (ru) 2011-11-27
EP2206112A1 (en) 2010-07-14
US20090112607A1 (en) 2009-04-30
CN101836252B (zh) 2016-06-15
BRPI0817800A8 (pt) 2015-11-03
KR101125429B1 (ko) 2012-03-28
MX2010004479A (es) 2010-05-03
WO2009055192A1 (en) 2009-04-30
CN101836252A (zh) 2010-09-15
US8209190B2 (en) 2012-06-26
KR20100063127A (ko) 2010-06-10

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B25E Requested change of name of applicant rejected

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B25G Requested change of headquarter approved

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B15K Others concerning applications: alteration of classification

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