JPS5666973A - Subscanning reduction system of facsimile equipment - Google Patents

Subscanning reduction system of facsimile equipment

Info

Publication number
JPS5666973A
JPS5666973A JP14309379A JP14309379A JPS5666973A JP S5666973 A JPS5666973 A JP S5666973A JP 14309379 A JP14309379 A JP 14309379A JP 14309379 A JP14309379 A JP 14309379A JP S5666973 A JPS5666973 A JP S5666973A
Authority
JP
Japan
Prior art keywords
signal
counting
scanning
circuit
reduction parameter
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
JP14309379A
Other languages
Japanese (ja)
Inventor
Chiaki Motegi
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP14309379A priority Critical patent/JPS5666973A/en
Publication of JPS5666973A publication Critical patent/JPS5666973A/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
    • H04N1/387—Composing, repositioning or otherwise geometrically modifying originals
    • H04N1/393—Enlarging or reducing
    • H04N1/3935—Enlarging or reducing with modification of image resolution, i.e. determining the values of picture elements at new relative positions

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Image Processing (AREA)
  • Editing Of Facsimile Originals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

PURPOSE:To reduce a picture to an optical size, by leading in a reduction parameter and thinning out a scanning line in accordance with the reduction parameter, in the width scanning reduction system of a facsimile equipment. CONSTITUTION:When a reduction parameter signal (d) is input to the constant setting circuit 11, a counting signal (e) for thinning out one piece among (n) pieces of scanning lines is set to the counting circuit 12 by a counting value load signal (f). After that, a scanning start signal (b) is input to the counting circuit 12, and when the counting value becomes ''0'', a carry signal (g) is output, and a thin-out command is given to the constant setting circuit 11. As a result, the constant setting circuit 11 inputs a thin-out signal (h) operating as a logical sum execution signal of two scanning lines, to the picture signal processing circuit 10, and the processing for thinning out the n-th scanning line. Accordingly, a picture signal can be reduced optionally by changing a reduction parameter signal.
JP14309379A 1979-11-05 1979-11-05 Subscanning reduction system of facsimile equipment Pending JPS5666973A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14309379A JPS5666973A (en) 1979-11-05 1979-11-05 Subscanning reduction system of facsimile equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14309379A JPS5666973A (en) 1979-11-05 1979-11-05 Subscanning reduction system of facsimile equipment

Publications (1)

Publication Number Publication Date
JPS5666973A true JPS5666973A (en) 1981-06-05

Family

ID=15330743

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14309379A Pending JPS5666973A (en) 1979-11-05 1979-11-05 Subscanning reduction system of facsimile equipment

Country Status (1)

Country Link
JP (1) JPS5666973A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56117480A (en) * 1980-02-20 1981-09-14 Sanyo Electric Co Ltd Secondary scanning direction contracting transmission system of facsimile transmitter
JPS58153450A (en) * 1982-03-06 1983-09-12 Nippon Telegr & Teleph Corp <Ntt> Method for converting resolution of facsimile information or the like
JPS59132278A (en) * 1983-01-18 1984-07-30 Dainippon Screen Mfg Co Ltd Recording method with variable magnification of picture scanning recorder
JPS59138162A (en) * 1983-01-27 1984-08-08 Dainippon Screen Mfg Co Ltd Method for changing magnification in picture scanning recording device
JPS59224967A (en) * 1983-06-03 1984-12-17 Fujitsu Ltd Picture information processing unit
JPS6180954A (en) * 1984-09-28 1986-04-24 Nec Corp Reducing system of dot pattern character

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4943537A (en) * 1972-08-30 1974-04-24
JPS51131209A (en) * 1975-05-09 1976-11-15 Fujitsu Ltd Picture signal transmission/reception for vertical scanning lines of d ifferent density
JPS5435613A (en) * 1977-08-25 1979-03-15 Dainippon Screen Mfg Method of and device for converting duplicating reproduction factor in picture scan recorder
JPS5450217A (en) * 1977-09-29 1979-04-20 Ricoh Co Ltd Picture reading and recording method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4943537A (en) * 1972-08-30 1974-04-24
JPS51131209A (en) * 1975-05-09 1976-11-15 Fujitsu Ltd Picture signal transmission/reception for vertical scanning lines of d ifferent density
JPS5435613A (en) * 1977-08-25 1979-03-15 Dainippon Screen Mfg Method of and device for converting duplicating reproduction factor in picture scan recorder
JPS5450217A (en) * 1977-09-29 1979-04-20 Ricoh Co Ltd Picture reading and recording method

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56117480A (en) * 1980-02-20 1981-09-14 Sanyo Electric Co Ltd Secondary scanning direction contracting transmission system of facsimile transmitter
JPH0145269B2 (en) * 1980-02-20 1989-10-03 Sanyo Electric Co
JPS58153450A (en) * 1982-03-06 1983-09-12 Nippon Telegr & Teleph Corp <Ntt> Method for converting resolution of facsimile information or the like
JPH0235504B2 (en) * 1982-03-06 1990-08-10 Nippon Telegraph & Telephone
JPS59132278A (en) * 1983-01-18 1984-07-30 Dainippon Screen Mfg Co Ltd Recording method with variable magnification of picture scanning recorder
JPH0238036B2 (en) * 1983-01-18 1990-08-28 Dainippon Screen Mfg
JPS59138162A (en) * 1983-01-27 1984-08-08 Dainippon Screen Mfg Co Ltd Method for changing magnification in picture scanning recording device
JPS59224967A (en) * 1983-06-03 1984-12-17 Fujitsu Ltd Picture information processing unit
JPH0349229B2 (en) * 1983-06-03 1991-07-26 Fujitsu Kk
JPS6180954A (en) * 1984-09-28 1986-04-24 Nec Corp Reducing system of dot pattern character

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