DK0587733T3 - Digital filterbank med lav beregningsmæssig komplicerethed - Google Patents

Digital filterbank med lav beregningsmæssig komplicerethed

Info

Publication number
DK0587733T3
DK0587733T3 DK92912812.2T DK92912812T DK0587733T3 DK 0587733 T3 DK0587733 T3 DK 0587733T3 DK 92912812 T DK92912812 T DK 92912812T DK 0587733 T3 DK0587733 T3 DK 0587733T3
Authority
DK
Denmark
Prior art keywords
digital filter
filter bank
computational complexity
low computational
low
Prior art date
Application number
DK92912812.2T
Other languages
English (en)
Inventor
Grant Allen Davidson
Michael B Antill
Original Assignee
Dolby Lab Licensing Corp
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=24855617&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DK0587733(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Dolby Lab Licensing Corp filed Critical Dolby Lab Licensing Corp
Application granted granted Critical
Publication of DK0587733T3 publication Critical patent/DK0587733T3/da

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image coding
    • G06T9/005—Statistical coding, e.g. Huffman, run length coding
    • 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
    • G10L19/0204—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
    • 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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Theoretical Computer Science (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Mathematical Physics (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Complex Calculations (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Networks Using Active Elements (AREA)
DK92912812.2T 1991-06-05 1992-06-05 Digital filterbank med lav beregningsmæssig komplicerethed DK0587733T3 (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/710,805 US5297236A (en) 1989-01-27 1991-06-05 Low computational-complexity digital filter bank for encoder, decoder, and encoder/decoder

Publications (1)

Publication Number Publication Date
DK0587733T3 true DK0587733T3 (da) 1998-02-23

Family

ID=24855617

Family Applications (1)

Application Number Title Priority Date Filing Date
DK92912812.2T DK0587733T3 (da) 1991-06-05 1992-06-05 Digital filterbank med lav beregningsmæssig komplicerethed

Country Status (10)

Country Link
US (1) US5297236A (da)
EP (1) EP0587733B1 (da)
JP (1) JP3203250B2 (da)
KR (1) KR100253136B1 (da)
AU (1) AU655053B2 (da)
CA (1) CA2103051C (da)
DE (1) DE69221616T2 (da)
DK (1) DK0587733T3 (da)
SG (1) SG47709A1 (da)
WO (1) WO1992022137A1 (da)

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TWI556227B (zh) 2009-05-27 2016-11-01 杜比國際公司 從訊號的低頻成份產生該訊號之高頻成份的系統與方法，及其機上盒、電腦程式產品、軟體程式及儲存媒體
EP3764356A1 (en) * 2009-06-23 2021-01-13 VoiceAge Corporation Forward time-domain aliasing cancellation with application in weighted or original signal domain
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Also Published As

Publication number Publication date
KR100253136B1 (ko) 2000-04-15
CA2103051C (en) 2003-05-06
CA2103051A1 (en) 1992-12-06
EP0587733B1 (en) 1997-08-13
JP3203250B2 (ja) 2001-08-27
SG47709A1 (en) 1998-04-17
AU655053B2 (en) 1994-12-01
JPH06508731A (ja) 1994-09-29
EP0587733A1 (en) 1994-03-23
DE69221616D1 (de) 1997-09-18
DE69221616T2 (de) 1998-02-05
US5297236A (en) 1994-03-22
WO1992022137A1 (en) 1992-12-10
AU2162792A (en) 1993-01-08

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