JPS5498543A - Variable length code decoder - Google Patents

Variable length code decoder

Info

Publication number
JPS5498543A
JPS5498543A JP77879A JP77879A JPS5498543A JP S5498543 A JPS5498543 A JP S5498543A JP 77879 A JP77879 A JP 77879A JP 77879 A JP77879 A JP 77879A JP S5498543 A JPS5498543 A JP S5498543A
Authority
JP
Japan
Prior art keywords
variable length
length code
code decoder
decoder
variable
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.)
Pending
Application number
JP77879A
Other languages
English (en)
Inventor
Jiin Roishiyaa Tomurinson
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.)
NCR Voyix Corp
Original Assignee
NCR 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 NCR Corp filed Critical NCR Corp
Publication of JPS5498543A publication Critical patent/JPS5498543A/ja
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • 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
    • H03M7/40—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code
    • H03M7/42—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code using table look-up for the coding or decoding process, e.g. using read-only memory
    • H03M7/425—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code using table look-up for the coding or decoding process, e.g. using read-only memory for the decoding process only

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
JP77879A 1978-01-13 1979-01-10 Variable length code decoder Pending JPS5498543A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/869,961 US4188669A (en) 1978-01-13 1978-01-13 Decoder for variable-length codes

Publications (1)

Publication Number Publication Date
JPS5498543A true JPS5498543A (en) 1979-08-03

Family

ID=25354513

Family Applications (1)

Application Number Title Priority Date Filing Date
JP77879A Pending JPS5498543A (en) 1978-01-13 1979-01-10 Variable length code decoder

Country Status (5)

Country Link
US (1) US4188669A (ja)
JP (1) JPS5498543A (ja)
DE (1) DE2900586C2 (ja)
FR (1) FR2414828A1 (ja)
GB (1) GB2012462B (ja)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4463342A (en) * 1979-06-14 1984-07-31 International Business Machines Corporation Method and means for carry-over control in the high order to low order pairwise combining of digits of a decodable set of relatively shifted finite number strings
US4506325A (en) * 1980-03-24 1985-03-19 Sperry Corporation Reflexive utilization of descriptors to reconstitute computer instructions which are Huffman-like encoded
DE3028734A1 (de) * 1980-07-29 1982-03-04 Siemens AG, 1000 Berlin und 8000 München Verfahren zur umwandlung von positiven linear codierten digitalen signalen sowie deren zweierkomplement in nichtlinear codierte digitale signale gemaess einer der a-gesetz gehorchenden mehrfachsegmentkennlinie
US4475174A (en) * 1981-09-08 1984-10-02 Nippon Telegraph & Telephone Public Corporation Decoding apparatus for codes represented by code tree
FR2600223B1 (fr) * 1986-01-13 1988-08-19 Thomson Cgr Procede de formattage et de deformattage de donnees resultant du codage d'informations numeriques a l'aide d'un code a longueur variable, et dispositif de mise en oeuvre
FR2601833B1 (fr) * 1986-07-17 1992-12-31 Brion Alain Procede de decodage d'un signal binaire code par un code de plages a longueur variable
US5243701A (en) * 1987-09-17 1993-09-07 Mitsubishi Denki Kabushiki Kaisha Method of and system for processing data having bit length variable with modes of operation
FR2627337B1 (fr) * 1988-02-17 1990-06-08 Thomson Csf Procede de codage et procede de decodage a longueur variable, dispositif de codage et dispositif de decodage pour la mise en oeuvre de ce proced
JPH0795269B2 (ja) * 1988-11-04 1995-10-11 富士通株式会社 命令コードのデコード装置
KR930005768B1 (ko) * 1989-01-17 1993-06-24 후지쓰 가부시끼가이샤 마이크로 프로세서
US5173695A (en) * 1990-06-29 1992-12-22 Bell Communications Research, Inc. High-speed flexible variable-length-code decoder
US5280349A (en) * 1992-02-13 1994-01-18 Industrial Technology Research Institute HDTV decoder
JP3532975B2 (ja) * 1993-09-27 2004-05-31 株式会社ルネサステクノロジ マイクロコンピュータおよびそれを用いて命令を実行する方法
US8004431B2 (en) * 2008-12-09 2011-08-23 Qualcomm Incorporated Fast parsing of variable-to-fixed-length codes

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3675212A (en) * 1970-08-10 1972-07-04 Ibm Data compaction using variable-length coding
US3675211A (en) * 1970-09-08 1972-07-04 Ibm Data compaction using modified variable-length coding
US3701108A (en) * 1970-10-30 1972-10-24 Ibm Code processor for variable-length dependent codes
US3717851A (en) * 1971-03-03 1973-02-20 Ibm Processing of compacted data
US3771139A (en) * 1971-05-03 1973-11-06 D Digby Associative memory method of performing simultaneous content searches
US3918047A (en) * 1974-03-28 1975-11-04 Bell Telephone Labor Inc Decoding circuit for variable length codes
GB1492260A (en) * 1974-10-29 1977-11-16 Int Computers Ltd Data processing systems

Also Published As

Publication number Publication date
FR2414828A1 (fr) 1979-08-10
DE2900586C2 (de) 1981-12-10
GB2012462B (en) 1982-03-03
US4188669A (en) 1980-02-12
FR2414828B1 (ja) 1982-06-18
DE2900586A1 (de) 1979-07-19
GB2012462A (en) 1979-07-25

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