GB1469433A - Graphic information compression method and system - Google Patents

Graphic information compression method and system

Info

Publication number
GB1469433A
GB1469433A GB1185774A GB1185774A GB1469433A GB 1469433 A GB1469433 A GB 1469433A GB 1185774 A GB1185774 A GB 1185774A GB 1185774 A GB1185774 A GB 1185774A GB 1469433 A GB1469433 A GB 1469433A
Authority
GB
United Kingdom
Prior art keywords
block
delta
signal
information
line
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
GB1185774A
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Publication of GB1469433A publication Critical patent/GB1469433A/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
    • 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
    • H04N1/415—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information in which the picture-elements are subdivided or grouped into fixed one-dimensional or two-dimensional blocks

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Compression Of Band Width Or Redundancy In Fax (AREA)
  • Image Processing (AREA)
GB1185774A 1973-03-27 1974-03-18 Graphic information compression method and system Expired GB1469433A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP48035413A JPS5843943B2 (ja) 1973-03-27 1973-03-27 シヨガジヨウホウアツシユクホウシキ

Publications (1)

Publication Number Publication Date
GB1469433A true GB1469433A (en) 1977-04-06

Family

ID=12441181

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1185774A Expired GB1469433A (en) 1973-03-27 1974-03-18 Graphic information compression method and system

Country Status (3)

Country Link
JP (1) JPS5843943B2 (enrdf_load_stackoverflow)
DE (1) DE2414239C3 (enrdf_load_stackoverflow)
GB (1) GB1469433A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5335316A (en) * 1991-04-25 1994-08-02 Canon Kabushiki Kaisha Output method and apparatus

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5210018A (en) * 1975-07-15 1977-01-26 Oki Electric Ind Co Ltd High speed picture transmission device
BE851737A (fr) * 1976-02-26 1977-06-16 Licentia Gmbh Procede et dispositif pour la memorisation d'un signal numerique bivalent
JPS52107714A (en) * 1976-03-08 1977-09-09 Gakken Co Ltd Facsimile signal recording system
JPS5819185B2 (ja) * 1976-10-29 1983-04-16 沖電気工業株式会社 情報圧縮フアクシミリ装置
JPS5941631B2 (ja) * 1977-12-20 1984-10-08 沖電気工業株式会社 高能率書画電送方式
FR2430139A1 (fr) * 1978-06-28 1980-01-25 Labo Electronique Physique Dispositif de compression de signaux binaires et systeme de transmission codee de fac-similes equipe de ce dispositif
JPS5542481A (en) * 1978-09-21 1980-03-25 Canon Inc Signal converting method
JPS57184367A (en) * 1981-05-08 1982-11-13 Sanyo Electric Co Ltd Facsimile receiver
JPS5846460A (ja) * 1981-09-11 1983-03-17 Matsushita Graphic Commun Syst Inc 輪括画像形成方式

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5313930B2 (enrdf_load_stackoverflow) * 1971-11-24 1978-05-13

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5335316A (en) * 1991-04-25 1994-08-02 Canon Kabushiki Kaisha Output method and apparatus

Also Published As

Publication number Publication date
JPS5843943B2 (ja) 1983-09-30
DE2414239A1 (de) 1974-10-17
DE2414239B2 (de) 1978-12-21
JPS49122913A (enrdf_load_stackoverflow) 1974-11-25
DE2414239C3 (de) 1979-08-16

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Legal Events

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