NL190094C - DEVICE FOR DECODING A VARIABLE LENGTH CODE PROPOSED BY A CODE TREE. - Google Patents

DEVICE FOR DECODING A VARIABLE LENGTH CODE PROPOSED BY A CODE TREE.

Info

Publication number
NL190094C
NL190094C NL8104352A NL8104352A NL190094C NL 190094 C NL190094 C NL 190094C NL 8104352 A NL8104352 A NL 8104352A NL 8104352 A NL8104352 A NL 8104352A NL 190094 C NL190094 C NL 190094C
Authority
NL
Netherlands
Prior art keywords
decoding
code
variable length
proposed
tree
Prior art date
Application number
NL8104352A
Other languages
Dutch (nl)
Other versions
NL8104352A (en
NL190094B (en
Original Assignee
Nippon Telegraph & Telephone
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 Nippon Telegraph & Telephone filed Critical Nippon Telegraph & Telephone
Publication of NL8104352A publication Critical patent/NL8104352A/en
Publication of NL190094B publication Critical patent/NL190094B/en
Application granted granted Critical
Publication of NL190094C publication Critical patent/NL190094C/en

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
    • H03M7/40—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
    • 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
    • H03M7/4025—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code constant length to or from Morse code conversion

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Compression Of Band Width Or Redundancy In Fax (AREA)
NL8104352A 1980-09-22 1981-09-22 DEVICE FOR DECODING A VARIABLE LENGTH CODE PROPOSED BY A CODE TREE. NL190094C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP13186280 1980-09-22
JP13186280A JPS5755668A (en) 1980-09-22 1980-09-22 Decoding method for run-length code

Publications (3)

Publication Number Publication Date
NL8104352A NL8104352A (en) 1982-04-16
NL190094B NL190094B (en) 1993-05-17
NL190094C true NL190094C (en) 1993-10-18

Family

ID=15067855

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8104352A NL190094C (en) 1980-09-22 1981-09-22 DEVICE FOR DECODING A VARIABLE LENGTH CODE PROPOSED BY A CODE TREE.

Country Status (5)

Country Link
JP (1) JPS5755668A (en)
DE (1) DE3137704C2 (en)
FR (1) FR2490899A1 (en)
GB (1) GB2084366B (en)
NL (1) NL190094C (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5937773A (en) * 1982-08-26 1984-03-01 Canon Inc Run-length coding and decoding device
JPS59225676A (en) * 1983-06-06 1984-12-18 Usac Electronics Ind Co Ltd Generating circuit of bit length variable code
JPS6041883A (en) * 1983-08-17 1985-03-05 Fujitsu Ltd Decoding system of coded data
JPS6098768A (en) * 1983-11-04 1985-06-01 Sony Corp Decoding method of run length code
JPS61139069U (en) * 1985-02-18 1986-08-28
GB2178577B (en) * 1985-07-27 1989-01-11 Plessey Co Plc A signal converter
US4800441A (en) * 1986-02-28 1989-01-24 Kabushiki Kaisha Toshiba Binary data compression and expansion processing apparatus
JPH0656958B2 (en) * 1986-07-03 1994-07-27 キヤノン株式会社 Information data restoration device
US6408102B1 (en) 1993-12-20 2002-06-18 Canon Kabushiki Kaisha Encoding/decoding device
JP3227292B2 (en) * 1993-12-20 2001-11-12 キヤノン株式会社 Encoding device, encoding method, decoding device, decoding method, encoding / decoding device, and encoding / decoding method
KR0152038B1 (en) * 1994-10-17 1998-10-15 김광호 Variable length decode apparatus using partner address

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3701111A (en) * 1971-02-08 1972-10-24 Ibm Method of and apparatus for decoding variable-length codes having length-indicating prefixes
GB1332631A (en) * 1971-02-26 1973-10-03 Ibm Data processing system
US3835467A (en) * 1972-11-10 1974-09-10 Ibm Minimal redundancy decoding method and means
US3918047A (en) * 1974-03-28 1975-11-04 Bell Telephone Labor Inc Decoding circuit for variable length codes
US3883847A (en) * 1974-03-28 1975-05-13 Bell Telephone Labor Inc Uniform decoding of minimum-redundancy codes

Also Published As

Publication number Publication date
NL8104352A (en) 1982-04-16
NL190094B (en) 1993-05-17
JPS5755668A (en) 1982-04-02
GB2084366B (en) 1985-07-03
FR2490899A1 (en) 1982-03-26
FR2490899B1 (en) 1984-12-28
JPS6338153B2 (en) 1988-07-28
DE3137704C2 (en) 1986-01-09
DE3137704A1 (en) 1982-04-15
GB2084366A (en) 1982-04-07

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Legal Events

Date Code Title Description
A1A A request for search or an international-type search has been filed
BB A search report has been drawn up
A85 Still pending on 85-01-01
BC A request for examination has been filed
CNR Transfer of rights (patent application after its laying openfor public ins pection)

Free format text: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

V4 Lapsed because of reaching the maxim lifetime of a patent

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