JPS574660A - Facsimile device - Google Patents

Facsimile device

Info

Publication number
JPS574660A
JPS574660A JP7774680A JP7774680A JPS574660A JP S574660 A JPS574660 A JP S574660A JP 7774680 A JP7774680 A JP 7774680A JP 7774680 A JP7774680 A JP 7774680A JP S574660 A JPS574660 A JP S574660A
Authority
JP
Japan
Prior art keywords
information
block
unit
scanning line
facsimile device
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.)
Pending
Application number
JP7774680A
Other languages
Japanese (ja)
Inventor
Hidekazu Hara
Seiichi Hayashi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP7774680A priority Critical patent/JPS574660A/en
Publication of JPS574660A publication Critical patent/JPS574660A/en
Pending 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
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/17—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa the scanning speed being dependent on content of picture

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)

Abstract

PURPOSE:To reduce the transmitting time, by adding a function to a skip-system facsimile device to exchange the scanning line density according to the information. CONSTITUTION:A block code coincidence detection unit 13 decides a coincidence between the block code of a preceding line and that of this line by the output of a coding process unit 7 that codes the presence or black information in a block and then transmits the coded information in the form of a block information. A scanning line line density exchanging unit 14 exchanges the scanning line density by the output of the unit 13.
JP7774680A 1980-06-11 1980-06-11 Facsimile device Pending JPS574660A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7774680A JPS574660A (en) 1980-06-11 1980-06-11 Facsimile device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7774680A JPS574660A (en) 1980-06-11 1980-06-11 Facsimile device

Publications (1)

Publication Number Publication Date
JPS574660A true JPS574660A (en) 1982-01-11

Family

ID=13642470

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7774680A Pending JPS574660A (en) 1980-06-11 1980-06-11 Facsimile device

Country Status (1)

Country Link
JP (1) JPS574660A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4947259A (en) * 1987-07-22 1990-08-07 Sharp Kabushiki Kaisha Image signal compressing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4947259A (en) * 1987-07-22 1990-08-07 Sharp Kabushiki Kaisha Image signal compressing device

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