FR1241748A - Système de compression et d'expansion d'informations - Google Patents

Système de compression et d'expansion d'informations

Info

Publication number
FR1241748A
FR1241748A FR800683A FR800683A FR1241748A FR 1241748 A FR1241748 A FR 1241748A FR 800683 A FR800683 A FR 800683A FR 800683 A FR800683 A FR 800683A FR 1241748 A FR1241748 A FR 1241748A
Authority
FR
France
Prior art keywords
expansion system
information compression
compression
information
expansion
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
FR800683A
Other languages
English (en)
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 FR1241748A publication Critical patent/FR1241748A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • 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
    • H03M7/3066—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction by means of a mask or a bit-map

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
FR800683A 1958-08-13 1959-07-21 Système de compression et d'expansion d'informations Expired FR1241748A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US754789A US3064239A (en) 1958-08-13 1958-08-13 Information compression and expansion system

Publications (1)

Publication Number Publication Date
FR1241748A true FR1241748A (fr) 1960-09-23

Family

ID=25036345

Family Applications (1)

Application Number Title Priority Date Filing Date
FR800683A Expired FR1241748A (fr) 1958-08-13 1959-07-21 Système de compression et d'expansion d'informations

Country Status (5)

Country Link
US (1) US3064239A (fr)
DE (1) DE1233627B (fr)
FR (1) FR1241748A (fr)
GB (1) GB896129A (fr)
NL (2) NL135203C (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USB325107I5 (fr) * 1961-01-27
US3260998A (en) * 1961-10-25 1966-07-12 Phillips Petroleum Co Digital computer measurement and control of analog processes
US3343139A (en) * 1964-10-07 1967-09-19 Bell Telephone Labor Inc Abbreviated mask instructions for a digital data processor
US3407390A (en) * 1965-09-30 1968-10-22 Universal Data Acquisition Com Electronic interpreter
US3413611A (en) * 1966-01-17 1968-11-26 Pfuetze David Method and apparatus for the compaction of data
US3772654A (en) * 1971-12-30 1973-11-13 Ibm Method and apparatus for data form modification
US4319225A (en) * 1974-05-17 1982-03-09 The United States Of America As Represented By The Secretary Of The Army Methods and apparatus for compacting digital data
US4335372A (en) * 1980-03-28 1982-06-15 Motorola Inc. Digital scaling apparatus
US4885584A (en) * 1988-04-07 1989-12-05 Zilog, Inc. Serializer system with variable character length capabilities

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2853698A (en) * 1955-09-23 1958-09-23 Rca Corp Compression system
US2934746A (en) * 1956-08-01 1960-04-26 Honeywell Regulator Co Information signal processing apparatus

Also Published As

Publication number Publication date
NL135203C (fr)
US3064239A (en) 1962-11-13
NL242081A (fr)
DE1233627B (de) 1967-02-02
GB896129A (en) 1962-05-09

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