JPS543551A - Multi-gradation recorder - Google Patents

Multi-gradation recorder

Info

Publication number
JPS543551A
JPS543551A JP6858577A JP6858577A JPS543551A JP S543551 A JPS543551 A JP S543551A JP 6858577 A JP6858577 A JP 6858577A JP 6858577 A JP6858577 A JP 6858577A JP S543551 A JPS543551 A JP S543551A
Authority
JP
Japan
Prior art keywords
gradation
recorder
density
function
ditinct
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.)
Granted
Application number
JP6858577A
Other languages
Japanese (ja)
Other versions
JPS6147025B2 (en
Inventor
Hiroyuki Ando
Hideaki Ohira
Tetsuji Kusunoki
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.)
Panasonic System Solutions Japan Co Ltd
Panasonic Holdings Corp
Original Assignee
Matsushita Graphic Communication Systems Inc
Matsushita Electric Industrial 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 Matsushita Graphic Communication Systems Inc, Matsushita Electric Industrial Co Ltd filed Critical Matsushita Graphic Communication Systems Inc
Priority to JP6858577A priority Critical patent/JPS543551A/en
Publication of JPS543551A publication Critical patent/JPS543551A/en
Publication of JPS6147025B2 publication Critical patent/JPS6147025B2/ja
Granted 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
    • H04N1/40—Picture signal circuits
    • H04N1/405—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels
    • H04N1/4051—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a dispersed dots halftone pattern, the dots having substantially the same size

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Electronic Switches (AREA)
  • Facsimile Image Signal Circuits (AREA)

Abstract

PURPOSE:To carry out a dual scanning function, and obtain a highly ditinct record by varying the communication time with a gradation information signal, obtaining the corresponding density, and providing a received image from the facsimile and a circulate function corresponding to an auxiliary scanning density at the transmitter side with the receiving side.
JP6858577A 1977-06-09 1977-06-09 Multi-gradation recorder Granted JPS543551A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6858577A JPS543551A (en) 1977-06-09 1977-06-09 Multi-gradation recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6858577A JPS543551A (en) 1977-06-09 1977-06-09 Multi-gradation recorder

Publications (2)

Publication Number Publication Date
JPS543551A true JPS543551A (en) 1979-01-11
JPS6147025B2 JPS6147025B2 (en) 1986-10-17

Family

ID=13378008

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6858577A Granted JPS543551A (en) 1977-06-09 1977-06-09 Multi-gradation recorder

Country Status (1)

Country Link
JP (1) JPS543551A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5769075A (en) * 1980-10-15 1982-04-27 Shinko Electric Co Ltd Light and shade recording device for thermal printer
JPS57169370A (en) * 1981-04-10 1982-10-19 Toshiba Corp Heat transfer recorder
JPS57178474A (en) * 1981-04-25 1982-11-02 Konishiroku Photo Ind Co Ltd Color separating device
JPH01172708U (en) * 1988-05-26 1989-12-07

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5769075A (en) * 1980-10-15 1982-04-27 Shinko Electric Co Ltd Light and shade recording device for thermal printer
JPS57169370A (en) * 1981-04-10 1982-10-19 Toshiba Corp Heat transfer recorder
JPH0120992B2 (en) * 1981-04-10 1989-04-19 Tokyo Shibaura Electric Co
JPS57178474A (en) * 1981-04-25 1982-11-02 Konishiroku Photo Ind Co Ltd Color separating device
JPH01172708U (en) * 1988-05-26 1989-12-07

Also Published As

Publication number Publication date
JPS6147025B2 (en) 1986-10-17

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