FR2514969B1 - DEVICE FOR CODING A TRAIN OF CHARACTERS WITH INFORMATION COMPRESSION - Google Patents

DEVICE FOR CODING A TRAIN OF CHARACTERS WITH INFORMATION COMPRESSION

Info

Publication number
FR2514969B1
FR2514969B1 FR8217314A FR8217314A FR2514969B1 FR 2514969 B1 FR2514969 B1 FR 2514969B1 FR 8217314 A FR8217314 A FR 8217314A FR 8217314 A FR8217314 A FR 8217314A FR 2514969 B1 FR2514969 B1 FR 2514969B1
Authority
FR
France
Prior art keywords
train
characters
coding
information compression
compression
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
Application number
FR8217314A
Other languages
French (fr)
Other versions
FR2514969A1 (en
Inventor
Pierre A Humblet
Steven G Finn
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.)
Motorola Solutions Inc
Original Assignee
Codex 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 Codex Corp filed Critical Codex Corp
Publication of FR2514969A1 publication Critical patent/FR2514969A1/en
Application granted granted Critical
Publication of FR2514969B1 publication Critical patent/FR2514969B1/en
Expired 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
    • H03M7/40—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
FR8217314A 1981-10-15 1982-10-15 DEVICE FOR CODING A TRAIN OF CHARACTERS WITH INFORMATION COMPRESSION Expired FR2514969B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US31174481A 1981-10-15 1981-10-15
US31187781A 1981-10-15 1981-10-15

Publications (2)

Publication Number Publication Date
FR2514969A1 FR2514969A1 (en) 1983-04-22
FR2514969B1 true FR2514969B1 (en) 1989-02-03

Family

ID=26978045

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8217314A Expired FR2514969B1 (en) 1981-10-15 1982-10-15 DEVICE FOR CODING A TRAIN OF CHARACTERS WITH INFORMATION COMPRESSION

Country Status (4)

Country Link
AU (4) AU555476B2 (en)
DE (1) DE3238130A1 (en)
FR (1) FR2514969B1 (en)
GB (3) GB2109204B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5045853A (en) * 1987-06-17 1991-09-03 Intel Corporation Method and apparatus for statistically encoding digital data
US4926482A (en) * 1987-06-26 1990-05-15 Unisys Corp. Apparatus and method for real time data compressor
US4967196A (en) * 1988-03-31 1990-10-30 Intel Corporation Apparatus for decoding variable-length encoded data
US5371499A (en) * 1992-02-28 1994-12-06 Intersecting Concepts, Inc. Data compression using hashing
GB2321375B (en) * 1997-01-21 2002-02-27 Fujitsu Ltd Data encoding method and apparatus and data decoding method and apparatus
GB2367223B (en) * 1997-01-21 2002-05-15 Fujitsu Ltd Data encoding method and apparatus and data decoding method and apparatus

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU503988B2 (en) * 1975-11-25 1979-09-27 Rudolf Hell Gmbh Digital programme length coding with redundancy reduction forthe transmission of binary coded image information
US4168513A (en) * 1977-09-12 1979-09-18 Xerox Corporation Regenerative decoding of binary data using minimum redundancy codes
JPS5755669A (en) * 1980-09-05 1982-04-02 Ibm Dynamic data compressing system

Also Published As

Publication number Publication date
GB2152252A (en) 1985-07-31
AU575722B2 (en) 1988-08-04
GB8502324D0 (en) 1985-02-27
GB2109204A (en) 1983-05-25
AU575723B2 (en) 1988-08-04
AU8932882A (en) 1983-04-21
GB2152253B (en) 1986-05-21
AU5677786A (en) 1986-09-18
AU5677986A (en) 1986-09-18
GB8502325D0 (en) 1985-02-27
GB2152252B (en) 1986-05-21
AU555476B2 (en) 1986-09-25
DE3238130A1 (en) 1983-06-23
AU5677886A (en) 1986-09-18
GB2152253A (en) 1985-07-31
FR2514969A1 (en) 1983-04-22
GB2109204B (en) 1986-05-29

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Legal Events

Date Code Title Description
ST Notification of lapse