BRPI0923749A2 - computação de máscara de escalonamento seletivo baseada em detecção de pico - Google Patents

computação de máscara de escalonamento seletivo baseada em detecção de pico

Info

Publication number
BRPI0923749A2
BRPI0923749A2 BRPI0923749A BRPI0923749A BRPI0923749A2 BR PI0923749 A2 BRPI0923749 A2 BR PI0923749A2 BR PI0923749 A BRPI0923749 A BR PI0923749A BR PI0923749 A BRPI0923749 A BR PI0923749A BR PI0923749 A2 BRPI0923749 A2 BR PI0923749A2
Authority
BR
Brazil
Prior art keywords
peak detection
based selective
selective scaling
scaling mask
mask computation
Prior art date
Application number
BRPI0923749A
Other languages
English (en)
Inventor
James P Ashley
Udar Mittal
Original Assignee
Motorola Mobility 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 Mobility Inc filed Critical Motorola Mobility Inc
Publication of BRPI0923749A2 publication Critical patent/BRPI0923749A2/pt
Publication of BRPI0923749A8 publication Critical patent/BRPI0923749A8/pt
Publication of BRPI0923749B1 publication Critical patent/BRPI0923749B1/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
    • G10L19/005—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
    • G10L19/04—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
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Quality & Reliability (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
BRPI0923749-6A 2008-12-29 2009-12-03 Aparelho que decodifica um sinal de áudio, métodos para a decodificação e para a codificação de um sinal de áudio BRPI0923749B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US12/345,096 2008-12-29
US12/345,096 US8200496B2 (en) 2008-12-29 2008-12-29 Audio signal decoder and method for producing a scaled reconstructed audio signal
PCT/US2009/066627 WO2010077557A1 (en) 2008-12-29 2009-12-03 Selective scaling mask computation based on peak detection

Publications (3)

Publication Number Publication Date
BRPI0923749A2 true BRPI0923749A2 (pt) 2016-01-19
BRPI0923749A8 BRPI0923749A8 (pt) 2017-07-11
BRPI0923749B1 BRPI0923749B1 (pt) 2020-03-17

Family

ID=41693452

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0923749-6A BRPI0923749B1 (pt) 2008-12-29 2009-12-03 Aparelho que decodifica um sinal de áudio, métodos para a decodificação e para a codificação de um sinal de áudio

Country Status (8)

Country Link
US (1) US8200496B2 (pt)
EP (1) EP2382626B1 (pt)
JP (1) JP5283046B2 (pt)
KR (1) KR101275892B1 (pt)
CN (1) CN102272831B (pt)
BR (1) BRPI0923749B1 (pt)
ES (1) ES2430414T3 (pt)
WO (1) WO2010077557A1 (pt)

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Also Published As

Publication number Publication date
US8200496B2 (en) 2012-06-12
WO2010077557A1 (en) 2010-07-08
EP2382626A1 (en) 2011-11-02
BRPI0923749A8 (pt) 2017-07-11
US20100169087A1 (en) 2010-07-01
BRPI0923749B1 (pt) 2020-03-17
JP2012514224A (ja) 2012-06-21
JP5283046B2 (ja) 2013-09-04
KR20110111442A (ko) 2011-10-11
CN102272831B (zh) 2013-08-14
KR101275892B1 (ko) 2013-06-17
CN102272831A (zh) 2011-12-07
EP2382626B1 (en) 2013-09-18
ES2430414T3 (es) 2013-11-20

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Ipc: G10L 19/24 (2013.01)

B06F Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]
B06U Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
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