DE69522990T2 - Quantisierung von Eingangsvektoren mit und ohne Umordnung von Elementen eines Kandidatvektors - Google Patents

Quantisierung von Eingangsvektoren mit und ohne Umordnung von Elementen eines Kandidatvektors

Info

Publication number
DE69522990T2
DE69522990T2 DE69522990T DE69522990T DE69522990T2 DE 69522990 T2 DE69522990 T2 DE 69522990T2 DE 69522990 T DE69522990 T DE 69522990T DE 69522990 T DE69522990 T DE 69522990T DE 69522990 T2 DE69522990 T2 DE 69522990T2
Authority
DE
Germany
Prior art keywords
quantization
input vectors
candidate vector
reordering elements
reordering
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE69522990T
Other languages
English (en)
Other versions
DE69522990D1 (de
Inventor
Masahiro Serizawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC 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
Application filed by NEC Corp filed Critical NEC Corp
Publication of DE69522990D1 publication Critical patent/DE69522990D1/de
Application granted granted Critical
Publication of DE69522990T2 publication Critical patent/DE69522990T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • H03M7/3082—Vector coding
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image coding
    • G06T9/008—Vector quantisation
    • 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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • General Physics & Mathematics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
DE69522990T 1994-04-21 1995-04-20 Quantisierung von Eingangsvektoren mit und ohne Umordnung von Elementen eines Kandidatvektors Expired - Fee Related DE69522990T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6083272A JP2956473B2 (ja) 1994-04-21 1994-04-21 ベクトル量子化装置

Publications (2)

Publication Number Publication Date
DE69522990D1 DE69522990D1 (de) 2001-11-08
DE69522990T2 true DE69522990T2 (de) 2002-07-04

Family

ID=13797723

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69522990T Expired - Fee Related DE69522990T2 (de) 1994-04-21 1995-04-20 Quantisierung von Eingangsvektoren mit und ohne Umordnung von Elementen eines Kandidatvektors

Country Status (5)

Country Link
US (1) US5748839A (de)
EP (1) EP0680032B1 (de)
JP (1) JP2956473B2 (de)
CA (1) CA2147394C (de)
DE (1) DE69522990T2 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1132894B1 (de) * 1996-11-07 2003-05-02 Matsushita Electric Industrial Co., Ltd. Verfahren zur Erzeugung eines Vektorquantisierungs-Codebuchs
KR20030096444A (ko) 1996-11-07 2003-12-31 마쯔시다덴기산교 가부시키가이샤 음원 벡터 생성 장치 및 방법
US7389227B2 (en) * 2000-01-14 2008-06-17 C & S Technology Co., Ltd. High-speed search method for LSP quantizer using split VQ and fixed codebook of G.729 speech encoder
US6535640B1 (en) * 2000-04-27 2003-03-18 National Instruments Corporation Signal analysis system and method for determining a closest vector from a vector collection to an input signal
US7240001B2 (en) 2001-12-14 2007-07-03 Microsoft Corporation Quality improvement techniques in an audio encoder
AU2004267844C1 (en) * 2003-08-20 2009-01-08 Totalenergies Onetech PV wind performance enhancing methods and apparatus
US20060190251A1 (en) * 2005-02-24 2006-08-24 Johannes Sandvall Memory usage in a multiprocessor system
US7562021B2 (en) * 2005-07-15 2009-07-14 Microsoft Corporation Modification of codewords in dictionary used for efficient coding of digital media spectral data
US8091006B2 (en) * 2006-06-02 2012-01-03 Nec Laboratories America, Inc. Spherical lattice codes for lattice and lattice-reduction-aided decoders
US7885819B2 (en) 2007-06-29 2011-02-08 Microsoft Corporation Bitstream syntax for multi-process audio decoding
CN100583649C (zh) * 2007-07-23 2010-01-20 华为技术有限公司 矢量编/解码方法、装置及流媒体播放器
US8493244B2 (en) 2009-02-13 2013-07-23 Panasonic Corporation Vector quantization device, vector inverse-quantization device, and methods of same
US9524727B2 (en) * 2012-06-14 2016-12-20 Telefonaktiebolaget Lm Ericsson (Publ) Method and arrangement for scalable low-complexity coding/decoding

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4727354A (en) * 1987-01-07 1988-02-23 Unisys Corporation System for selecting best fit vector code in vector quantization encoding
US4969192A (en) * 1987-04-06 1990-11-06 Voicecraft, Inc. Vector adaptive predictive coder for speech and audio
US4959870A (en) * 1987-05-26 1990-09-25 Ricoh Company, Ltd. Character recognition apparatus having means for compressing feature data
DE3883701T2 (de) * 1987-10-30 1994-02-10 Nippon Telegraph & Telephone Verfahren und Vorrichtung für multiplexierte Vektorquantifizierung.
JPH088500B2 (ja) * 1988-08-19 1996-01-29 松下電器産業株式会社 ベクトル量子化器
JP2788257B2 (ja) * 1988-08-26 1998-08-20 富士通株式会社 ベクトル量子化の最適出力ベクトル探索方法
US5384891A (en) * 1988-09-28 1995-01-24 Hitachi, Ltd. Vector quantizing apparatus and speech analysis-synthesis system using the apparatus
US5077798A (en) * 1988-09-28 1991-12-31 Hitachi, Ltd. Method and system for voice coding based on vector quantization
US5255346A (en) * 1989-12-28 1993-10-19 U S West Advanced Technologies, Inc. Method and apparatus for design of a vector quantizer
US5210820A (en) * 1990-05-02 1993-05-11 Broadcast Data Systems Limited Partnership Signal recognition system and method
EP0500961B1 (de) * 1990-09-14 1998-04-29 Fujitsu Limited Sprachkodierungsystem
US5194864A (en) * 1990-10-03 1993-03-16 Olympus Optical Co., Ltd. Vector quantization method and apparatus
JP3129778B2 (ja) * 1991-08-30 2001-01-31 富士通株式会社 ベクトル量子化器
JPH0621828A (ja) * 1992-06-30 1994-01-28 Sanyo Electric Co Ltd ベクトル量子化復号化器

Also Published As

Publication number Publication date
CA2147394C (en) 1999-10-12
EP0680032A3 (de) 1997-08-20
EP0680032B1 (de) 2001-10-04
JPH07295598A (ja) 1995-11-10
EP0680032A2 (de) 1995-11-02
CA2147394A1 (en) 1995-10-22
DE69522990D1 (de) 2001-11-08
US5748839A (en) 1998-05-05
JP2956473B2 (ja) 1999-10-04

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee