CA989518A - Data compaction using modified variable-length coding - Google Patents

Data compaction using modified variable-length coding

Info

Publication number
CA989518A
CA989518A CA120,056A CA120056A CA989518A CA 989518 A CA989518 A CA 989518A CA 120056 A CA120056 A CA 120056A CA 989518 A CA989518 A CA 989518A
Authority
CA
Canada
Prior art keywords
length coding
modified variable
data compaction
compaction
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.)
Expired
Application number
CA120,056A
Other languages
English (en)
Other versions
CA120056S (en
Inventor
Josef Raviv
Michael A. Wesley
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of CA989518A publication Critical patent/CA989518A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M5/00—Conversion of the form of the representation of individual digits
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
CA120,056A 1970-08-10 1971-08-09 Data compaction using modified variable-length coding Expired CA989518A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US6230670A 1970-08-10 1970-08-10
US7025170A 1970-09-08 1970-09-08

Publications (1)

Publication Number Publication Date
CA989518A true CA989518A (en) 1976-05-18

Family

ID=26742110

Family Applications (1)

Application Number Title Priority Date Filing Date
CA120,056A Expired CA989518A (en) 1970-08-10 1971-08-09 Data compaction using modified variable-length coding

Country Status (3)

Country Link
CA (1) CA989518A (enExample)
FR (1) FR2102142B1 (enExample)
GB (1) GB1292772A (enExample)

Also Published As

Publication number Publication date
FR2102142A1 (enExample) 1972-04-07
GB1292772A (en) 1972-10-11
FR2102142B1 (enExample) 1974-04-26

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