AU5677986A - Data compression - Google Patents

Data compression

Info

Publication number
AU5677986A
AU5677986A AU56779/86A AU5677986A AU5677986A AU 5677986 A AU5677986 A AU 5677986A AU 56779/86 A AU56779/86 A AU 56779/86A AU 5677986 A AU5677986 A AU 5677986A AU 5677986 A AU5677986 A AU 5677986A
Authority
AU
Australia
Prior art keywords
data compression
compression
data
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.)
Granted
Application number
AU56779/86A
Other versions
AU575723B2 (en
Inventor
Steven G. Finn
Pierre A. Humblet
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 AU5677986A publication Critical patent/AU5677986A/en
Application granted granted Critical
Publication of AU575723B2 publication Critical patent/AU575723B2/en
Assigned to MOTOROLA, INC. reassignment MOTOROLA, INC. Alteration of Name(s) in Register under S187 Assignors: CODEX CORPORATION
Anticipated expiration legal-status Critical
Ceased 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)
AU56779/86A 1981-10-15 1986-04-28 Data compression Ceased AU575723B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US31174481A 1981-10-15 1981-10-15
US31187781A 1981-10-15 1981-10-15
US311877 1981-10-15
US311744 1981-10-15

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
AU89328/82A Division AU555476B2 (en) 1981-10-15 1982-10-13 Binary encoding

Publications (2)

Publication Number Publication Date
AU5677986A true AU5677986A (en) 1986-09-18
AU575723B2 AU575723B2 (en) 1988-08-04

Family

ID=26978045

Family Applications (4)

Application Number Title Priority Date Filing Date
AU89328/82A Ceased AU555476B2 (en) 1981-10-15 1982-10-13 Binary encoding
AU56779/86A Ceased AU575723B2 (en) 1981-10-15 1986-04-28 Data compression
AU56777/86A Ceased AU575722B2 (en) 1981-10-15 1986-04-28 Data compression
AU56778/86A Abandoned AU5677886A (en) 1981-10-15 1986-04-28 Data compression

Family Applications Before (1)

Application Number Title Priority Date Filing Date
AU89328/82A Ceased AU555476B2 (en) 1981-10-15 1982-10-13 Binary encoding

Family Applications After (2)

Application Number Title Priority Date Filing Date
AU56777/86A Ceased AU575722B2 (en) 1981-10-15 1986-04-28 Data compression
AU56778/86A Abandoned AU5677886A (en) 1981-10-15 1986-04-28 Data 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
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
FR2514969B1 (en) 1989-02-03

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