GB1443651A - System for compacting digital data - Google Patents

System for compacting digital data

Info

Publication number
GB1443651A
GB1443651A GB1792374A GB1792374A GB1443651A GB 1443651 A GB1443651 A GB 1443651A GB 1792374 A GB1792374 A GB 1792374A GB 1792374 A GB1792374 A GB 1792374A GB 1443651 A GB1443651 A GB 1443651A
Authority
GB
United Kingdom
Prior art keywords
digital data
compacting
compacting digital
data
digital
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
GB1792374A
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
Publication of GB1443651A publication Critical patent/GB1443651A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/41—Bandwidth or redundancy reduction
    • H04N1/411—Bandwidth or redundancy reduction for the transmission or storage or reproduction of two-tone pictures, e.g. black and white pictures
    • H04N1/413—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information
    • H04N1/417—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information using predictive or differential encoding
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image coding
    • G06T9/004—Predictors, e.g. intraframe, interframe coding

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
GB1792374A 1973-05-30 1974-04-24 System for compacting digital data Expired GB1443651A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US36533573A 1973-05-30 1973-05-30

Publications (1)

Publication Number Publication Date
GB1443651A true GB1443651A (en) 1976-07-21

Family

ID=23438437

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1792374A Expired GB1443651A (en) 1973-05-30 1974-04-24 System for compacting digital data

Country Status (3)

Country Link
JP (1) JPS586341B2 (enrdf_load_html_response)
DE (1) DE2425776A1 (enrdf_load_html_response)
GB (1) GB1443651A (enrdf_load_html_response)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4470072A (en) * 1979-10-17 1984-09-04 Matsushita Electric Industrial Co. Method of band compression

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2640157C2 (de) * 1976-09-07 1982-10-07 Philips Patentverwaltung Gmbh, 2000 Hamburg Verfahren und Anordnung zum redundanzvermindernden Codieren von Bildern
DE2740945C3 (de) * 1977-09-10 1982-02-11 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Verfahren zum Übertragen von Bildsignalen mit Hilfe der Differenz-Puls-Code-Modulation (DPCM) und geste uertem Quantisierer
JPS54113207A (en) * 1978-02-23 1979-09-04 Nec Corp Forecasting coder
US4213154A (en) * 1978-08-03 1980-07-15 Mitsubishi Denki Kabushiki Kaisha Facsimile communication system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4470072A (en) * 1979-10-17 1984-09-04 Matsushita Electric Industrial Co. Method of band compression

Also Published As

Publication number Publication date
DE2425776A1 (de) 1975-01-02
JPS5017715A (enrdf_load_html_response) 1975-02-25
JPS586341B2 (ja) 1983-02-04

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee