JPS5775064A - Recording device - Google Patents

Recording device

Info

Publication number
JPS5775064A
JPS5775064A JP15113880A JP15113880A JPS5775064A JP S5775064 A JPS5775064 A JP S5775064A JP 15113880 A JP15113880 A JP 15113880A JP 15113880 A JP15113880 A JP 15113880A JP S5775064 A JPS5775064 A JP S5775064A
Authority
JP
Japan
Prior art keywords
level
output
signal
picture
analog memory
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
JP15113880A
Other languages
Japanese (ja)
Inventor
Masahiro Tanmachi
Joji Amitani
Hiroo Hitotsubashi
Susumu Sugiura
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP15113880A priority Critical patent/JPS5775064A/en
Publication of JPS5775064A publication Critical patent/JPS5775064A/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
    • H04N1/40—Picture signal circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Dot-Matrix Printers And Others (AREA)
  • Laser Beam Printer (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Combination Of More Than One Step In Electrophotography (AREA)
  • Image Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)

Abstract

PURPOSE:To increase an apparent number of stages of digital tone wedges, by changing periodically the number of picture sections, which are subjected to recording in respect to picture element, for the same tone wedge of a picture of continuous tone wedges. CONSTITUTION:The picture signal inputted from an input terminal (i) is amplified by an amplifier 1 and is recorded in an analog memory 2. The output level of the analog memory 2 is detected by a level detector 10, and a high-level or low-level signal is led out onto a signal line SL1. A part of the output of the analog memory 2 is applied to a signal level changing circuit 3 and is added to the output of an oscillator 7 which is applied to this level changing circuit 3. The output of the level changing circuit 3 is inputted to an A/D converter 4, and the converted digital signal is sent to a printer 9.
JP15113880A 1980-10-28 1980-10-28 Recording device Pending JPS5775064A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15113880A JPS5775064A (en) 1980-10-28 1980-10-28 Recording device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15113880A JPS5775064A (en) 1980-10-28 1980-10-28 Recording device

Publications (1)

Publication Number Publication Date
JPS5775064A true JPS5775064A (en) 1982-05-11

Family

ID=15512193

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15113880A Pending JPS5775064A (en) 1980-10-28 1980-10-28 Recording device

Country Status (1)

Country Link
JP (1) JPS5775064A (en)

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