HK1245554A1 - 基於複指數調製的濾波器組的高級處理和自適應時間信號傳送方法 - Google Patents

基於複指數調製的濾波器組的高級處理和自適應時間信號傳送方法

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Publication number
HK1245554A1
HK1245554A1 HK18104577.3A HK18104577A HK1245554A1 HK 1245554 A1 HK1245554 A1 HK 1245554A1 HK 18104577 A HK18104577 A HK 18104577A HK 1245554 A1 HK1245554 A1 HK 1245554A1
Authority
HK
Hong Kong
Prior art keywords
signal
subband
exponential
complex
processing based
Prior art date
Application number
HK18104577.3A
Other languages
English (en)
Inventor
Jonas Engdegard
Lars Villemoes
Original Assignee
Dolby Int Ab
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=20291180&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=HK1245554(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Dolby Int Ab filed Critical Dolby Int Ab
Publication of HK1245554A1 publication Critical patent/HK1245554A1/zh

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Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/0248—Filters characterised by a particular frequency response or filtering method
    • H03H17/0264—Filter sets with mutual related characteristics
    • H03H17/0266—Filter banks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation 
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L19/0204—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 using subband decomposition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2420/00—Techniques used stereophonic systems covered by H04S but not provided for in its groups
    • H04S2420/03—Application of parametric coding in stereophonic audio systems
HK18104577.3A 2003-04-30 2018-04-09 基於複指數調製的濾波器組的高級處理和自適應時間信號傳送方法 HK1245554A1 (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0301273A SE0301273D0 (sv) 2003-04-30 2003-04-30 Advanced processing based on a complex-exponential-modulated filterbank and adaptive time signalling methods

Publications (1)

Publication Number Publication Date
HK1245554A1 true HK1245554A1 (zh) 2018-08-24

Family

ID=20291180

Family Applications (8)

Application Number Title Priority Date Filing Date
HK06101638.0A HK1081715A1 (en) 2003-04-30 2006-02-08 Advanced processing based on a complex-exponential modulated filterbank and adaptive time signalling methods
HK07107056.9A HK1099882A1 (en) 2003-04-30 2007-07-03 Parametric coding of the stereo image of an audio signal
HK11101511.5A HK1147591A1 (en) 2003-04-30 2011-02-16 Advanced processing based on a complex-exponential-modulated filterbank and adaptive time signalling methods
HK18104577.3A HK1245554A1 (zh) 2003-04-30 2018-04-09 基於複指數調製的濾波器組的高級處理和自適應時間信號傳送方法
HK18104575.5A HK1245553A1 (zh) 2003-04-30 2018-04-09 基於複指數調製的濾波器組的高級處理和自適應時間信號傳送方法
HK18104574.6A HK1245552A1 (zh) 2003-04-30 2018-04-09 基於複指數調製的濾波器組的高級處理和自適應時間信號傳送方法
HK18104649.7A HK1245556A1 (zh) 2003-04-30 2018-04-10 基於複指數調製的濾波器組的高級處理和自適應時間信號傳送方法
HK18104648.8A HK1245555A1 (zh) 2003-04-30 2018-04-10 基於複指數調製的濾波器組的高級處理和自適應時間信號傳送方法

Family Applications Before (3)

Application Number Title Priority Date Filing Date
HK06101638.0A HK1081715A1 (en) 2003-04-30 2006-02-08 Advanced processing based on a complex-exponential modulated filterbank and adaptive time signalling methods
HK07107056.9A HK1099882A1 (en) 2003-04-30 2007-07-03 Parametric coding of the stereo image of an audio signal
HK11101511.5A HK1147591A1 (en) 2003-04-30 2011-02-16 Advanced processing based on a complex-exponential-modulated filterbank and adaptive time signalling methods

Family Applications After (4)

Application Number Title Priority Date Filing Date
HK18104575.5A HK1245553A1 (zh) 2003-04-30 2018-04-09 基於複指數調製的濾波器組的高級處理和自適應時間信號傳送方法
HK18104574.6A HK1245552A1 (zh) 2003-04-30 2018-04-09 基於複指數調製的濾波器組的高級處理和自適應時間信號傳送方法
HK18104649.7A HK1245556A1 (zh) 2003-04-30 2018-04-10 基於複指數調製的濾波器組的高級處理和自適應時間信號傳送方法
HK18104648.8A HK1245555A1 (zh) 2003-04-30 2018-04-10 基於複指數調製的濾波器組的高級處理和自適應時間信號傳送方法

Country Status (13)

Country Link
US (2) US7487097B2 (zh)
EP (12) EP1616461B1 (zh)
JP (2) JP4527716B2 (zh)
KR (1) KR100717604B1 (zh)
CN (3) CN101071569B (zh)
AT (1) ATE444655T1 (zh)
DE (1) DE602004023381D1 (zh)
DK (9) DK2265040T3 (zh)
ES (9) ES2789575T3 (zh)
HK (8) HK1081715A1 (zh)
PL (9) PL3244638T3 (zh)
SE (1) SE0301273D0 (zh)
WO (1) WO2004097794A2 (zh)

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Also Published As

Publication number Publication date
EP3244638B1 (en) 2019-08-28
EP1616461A2 (en) 2006-01-18
DK2265041T3 (en) 2018-03-05
CN101819777B (zh) 2012-02-01
DE602004023381D1 (de) 2009-11-12
EP3244640A1 (en) 2017-11-15
EP3244638A1 (en) 2017-11-15
EP1768454A3 (en) 2010-09-01
EP2265042A2 (en) 2010-12-22
HK1245553A1 (zh) 2018-08-24
EP3244637A1 (en) 2017-11-15
EP1768454B1 (en) 2013-06-12
PL3244639T3 (pl) 2020-06-29
EP1768454A2 (en) 2007-03-28
PL2265041T3 (pl) 2018-05-30
EP2124485B1 (en) 2018-06-27
SE0301273D0 (sv) 2003-04-30
CN101071569A (zh) 2007-11-14
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