CA2273144C - Methode et appareil de decodage de donnees - Google Patents

Methode et appareil de decodage de donnees Download PDF

Info

Publication number
CA2273144C
CA2273144C CA002273144A CA2273144A CA2273144C CA 2273144 C CA2273144 C CA 2273144C CA 002273144 A CA002273144 A CA 002273144A CA 2273144 A CA2273144 A CA 2273144A CA 2273144 C CA2273144 C CA 2273144C
Authority
CA
Canada
Prior art keywords
memory
codeword
data
bit
context
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
CA002273144A
Other languages
English (en)
Other versions
CA2273144A1 (fr
Inventor
Edward L. Schwartz
Michael J. Gormish
James D. Allen
Martin Boliek
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority claimed from CA002156889A external-priority patent/CA2156889C/fr
Publication of CA2273144A1 publication Critical patent/CA2273144A1/fr
Application granted granted Critical
Publication of CA2273144C publication Critical patent/CA2273144C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00Conversion 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
    • H03M7/30Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/46Conversion to or from run-length codes, i.e. by representing the number of consecutive digits, or groups of digits, of the same kind by a code word and a digit indicative of that kind
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00Conversion 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
    • H03M7/30Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00Conversion 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
    • H03M7/30Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/40Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
CA002273144A 1994-09-30 1995-08-24 Methode et appareil de decodage de donnees Expired - Fee Related CA2273144C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US31611694A 1994-09-30 1994-09-30
US08/316,116 1994-09-30
CA002156889A CA2156889C (fr) 1994-09-30 1995-08-24 Methode et appareil de codage et de decodage de donnees

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002156889A Division CA2156889C (fr) 1994-09-30 1995-08-24 Methode et appareil de codage et de decodage de donnees

Publications (2)

Publication Number Publication Date
CA2273144A1 CA2273144A1 (fr) 1996-03-31
CA2273144C true CA2273144C (fr) 2004-05-25

Family

ID=29712950

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002273144A Expired - Fee Related CA2273144C (fr) 1994-09-30 1995-08-24 Methode et appareil de decodage de donnees

Country Status (1)

Country Link
CA (1) CA2273144C (fr)

Also Published As

Publication number Publication date
CA2273144A1 (fr) 1996-03-31

Similar Documents

Publication Publication Date Title
CA2156889C (fr) Methode et appareil de codage et de decodage de donnees
US5717394A (en) Method and apparatus for encoding and decoding data
US5583500A (en) Method and apparatus for parallel encoding and decoding of data
CN114556956B (zh) 使用旁路子流和经熵编码子流的低时延编码
US5381145A (en) Method and apparatus for parallel decoding and encoding of data
US6819271B2 (en) Parallel compression and decompression system and method having multiple parallel compression and decompression engines
US6885319B2 (en) System and method for generating optimally compressed data from a plurality of data compression/decompression engines implementing different data compression algorithms
JP5583106B2 (ja) データデコーディング
GB2306279A (en) Apparatus for decoding data
US5663726A (en) High speed variable-length decoder arrangement with reduced memory requirements for tag stream buffering
JPH07123407A (ja) Hdtv復号化器
US6094151A (en) Apparatus and method for finite state machine coding of information selecting most probable state subintervals
JP3230933B2 (ja) データ伸長装置、データ伸長方法、デコーディング装置、デコーディング方法、エンコーディング装置、及びエントロピー・デコーダ
CA2273144C (fr) Methode et appareil de decodage de donnees
KR0180164B1 (ko) 가변길이 부호기
JP3032161B2 (ja) 可変長復号化器のメモリインタフェース回路
KR100292050B1 (ko) 가변장복호기의 데이타 가변장치
US12417554B2 (en) Split runlength encoding compression and decompression of multi-planar image data
EP0629050B1 (fr) Décodeur à grand débit de mots à longueur variable et appareil comportant un tel décodeur
Park et al. Area efficient fast Huffman decoder for multimedia applications
EP4241452A1 (fr) Concaténation de flux entropiques fragmentés

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed