HK1149646A1 - 利用複調製濾波器組的高效濾波 - Google Patents

利用複調製濾波器組的高效濾波

Info

Publication number
HK1149646A1
HK1149646A1 HK11107070.5A HK11107070A HK1149646A1 HK 1149646 A1 HK1149646 A1 HK 1149646A1 HK 11107070 A HK11107070 A HK 11107070A HK 1149646 A1 HK1149646 A1 HK 1149646A1
Authority
HK
Hong Kong
Prior art keywords
complex
filter
impulse response
signal
valued subband
Prior art date
Application number
HK11107070.5A
Other languages
English (en)
Inventor
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
Application filed by Dolby Int Ab filed Critical Dolby Int Ab
Publication of HK1149646A1 publication Critical patent/HK1149646A1/zh

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00Networks using digital techniques
    • H03H17/02Frequency selective networks
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L19/02Speech 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
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L19/02Speech 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
    • G10L19/0204Speech 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
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00Networks using digital techniques
    • H03H17/02Frequency selective networks
    • H03H17/0248Filters characterised by a particular frequency response or filtering method
    • H03H17/0264Filter sets with mutual related characteristics
    • H03H17/0266Filter banks
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00Networks using digital techniques
    • H03H17/02Frequency selective networks
    • H03H17/0294Variable filters; Programmable filters
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H2218/00Indexing scheme relating to details of digital filters
    • H03H2218/04In-phase and quadrature [I/Q] signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Mathematical Physics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computational Linguistics (AREA)
  • Computer Hardware Design (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Liquid Crystal Substances (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Materials For Photolithography (AREA)
  • Filters And Equalizers (AREA)
  • Dc Digital Transmission (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Peptides Or Proteins (AREA)
  • Networks Using Active Elements (AREA)
  • Prostheses (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Eye Examination Apparatus (AREA)
  • Treatment Of Liquids With Adsorbents In General (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Error Detection And Correction (AREA)
  • Detergent Compositions (AREA)
  • Lubricants (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
HK11107070.5A 2006-01-27 2009-01-06 利用複調製濾波器組的高效濾波 HK1149646A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US76259206P 2006-01-27 2006-01-27
US74455906P 2006-04-10 2006-04-10

Publications (1)

Publication Number Publication Date
HK1149646A1 true HK1149646A1 (zh) 2011-10-07

Family

ID=37336292

Family Applications (4)

Application Number Title Priority Date Filing Date
HK18115382.4A HK1256315B (zh) 2006-01-27 2009-01-06 利用複調制濾波器組的高效濾波
HK11107070.5A HK1149646A1 (zh) 2006-01-27 2009-01-06 利用複調製濾波器組的高效濾波
HK09100077.7A HK1120938A1 (en) 2006-01-27 2009-01-06 Efficient filtering with a complex modulated filterbank
HK11104556.5A HK1150687A1 (en) 2006-01-27 2011-05-09 Efficient filtering with a complex modulated filterbank

Family Applications Before (1)

Application Number Title Priority Date Filing Date
HK18115382.4A HK1256315B (zh) 2006-01-27 2009-01-06 利用複調制濾波器組的高效濾波

Family Applications After (2)

Application Number Title Priority Date Filing Date
HK09100077.7A HK1120938A1 (en) 2006-01-27 2009-01-06 Efficient filtering with a complex modulated filterbank
HK11104556.5A HK1150687A1 (en) 2006-01-27 2011-05-09 Efficient filtering with a complex modulated filterbank

Country Status (19)

Country Link
US (2) US7711552B2 (zh)
EP (9) EP4372743A3 (zh)
JP (3) JP5452936B2 (zh)
KR (1) KR100959971B1 (zh)
CN (3) CN101401305B (zh)
AT (1) ATE503300T1 (zh)
AU (2) AU2006336954B2 (zh)
BR (2) BRPI0621207B1 (zh)
CA (1) CA2640431C (zh)
DE (1) DE602006020930D1 (zh)
ES (5) ES2821413T3 (zh)
HK (4) HK1256315B (zh)
HU (5) HUE061488T2 (zh)
MY (3) MY154144A (zh)
NO (5) NO339847B1 (zh)
RU (3) RU2402872C2 (zh)
TR (1) TR201808453T4 (zh)
TW (1) TWI325685B (zh)
WO (1) WO2007085275A1 (zh)

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Also Published As

Publication number Publication date
AU2010257205B2 (en) 2014-04-03
JP2009524956A (ja) 2009-07-02
US20070179781A1 (en) 2007-08-02
HK1256315B (zh) 2020-07-17
NO20180533A1 (no) 2008-08-26
NO339847B1 (no) 2017-02-06
BRPI0621207A2 (pt) 2013-10-29
ES2906088T3 (es) 2022-04-13
US8315859B2 (en) 2012-11-20
KR100959971B1 (ko) 2010-05-27
NO342163B1 (no) 2018-04-09
EP2306644A1 (en) 2011-04-06
RU2008134898A (ru) 2010-03-10
EP2337223B1 (en) 2014-12-24
ES2940283T3 (es) 2023-05-05
NO20083675L (no) 2008-08-26
EP4372743A3 (en) 2024-09-25
NO342467B1 (no) 2018-05-28
RU2453986C2 (ru) 2012-06-20
EP4178110A1 (en) 2023-05-10
CA2640431A1 (en) 2007-08-02
NO343578B1 (no) 2019-04-08
NO20161716A1 (no) 2008-08-26
HUE051853T2 (hu) 2021-03-29
BR122018017208B1 (pt) 2019-06-11
MY171034A (en) 2019-09-23
EP2337223A3 (en) 2012-01-25
CN102158198B (zh) 2015-04-01
AU2006336954A1 (en) 2007-08-02
RU2011154389A (ru) 2013-07-10
EP4372743A2 (en) 2024-05-22
EP1977510B1 (en) 2011-03-23
ES2672811T3 (es) 2018-06-18
HUE045751T2 (hu) 2020-01-28
EP3454471A1 (en) 2019-03-13
ATE503300T1 (de) 2011-04-15
EP3754846A1 (en) 2020-12-23
CA2640431C (en) 2012-11-06
RU2402872C2 (ru) 2010-10-27
EP3979497A1 (en) 2022-04-06
CN101401305B (zh) 2012-05-23
WO2007085275A1 (en) 2007-08-02
US20100174767A1 (en) 2010-07-08
US7711552B2 (en) 2010-05-04
NO20180322A1 (no) 2008-08-26
EP3454471B1 (en) 2020-08-26
AU2010257205A1 (en) 2011-01-13
EP3979497B1 (en) 2023-01-04
EP1977510A1 (en) 2008-10-08
EP3334043B1 (en) 2019-07-31
ES2750304T3 (es) 2020-03-25
HK1150687A1 (en) 2012-01-06
EP3754846B1 (en) 2021-12-15
CN101882441A (zh) 2010-11-10
HUE061488T2 (hu) 2023-07-28
JP2011103663A (ja) 2011-05-26
DE602006020930D1 (de) 2011-05-05
CN102158198A (zh) 2011-08-17
RU2507678C2 (ru) 2014-02-20
HK1120938A1 (en) 2009-04-09
TR201808453T4 (tr) 2018-07-23
MY144430A (en) 2011-09-15
JP2011103662A (ja) 2011-05-26
CN101401305A (zh) 2009-04-01
EP2337223A2 (en) 2011-06-22
MY154144A (en) 2015-05-15
AU2006336954B2 (en) 2011-02-03
HUE039217T2 (hu) 2018-12-28
ES2821413T3 (es) 2021-04-26
NO344514B1 (no) 2020-01-20
BRPI0621207B1 (pt) 2020-03-03
TW200729708A (en) 2007-08-01
NO20161718A1 (no) 2008-08-26
RU2010136817A (ru) 2012-03-10
EP4178110B1 (en) 2024-04-24
JP5453222B2 (ja) 2014-03-26
EP2306644B1 (en) 2018-03-21
TWI325685B (en) 2010-06-01
KR20080095867A (ko) 2008-10-29
CN101882441B (zh) 2013-02-27
EP3334043A1 (en) 2018-06-13
HUE057622T2 (hu) 2022-05-28
JP5452936B2 (ja) 2014-03-26

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