JPS5779768A - Video signal processing system - Google Patents

Video signal processing system

Info

Publication number
JPS5779768A
JPS5779768A JP55155171A JP15517180A JPS5779768A JP S5779768 A JPS5779768 A JP S5779768A JP 55155171 A JP55155171 A JP 55155171A JP 15517180 A JP15517180 A JP 15517180A JP S5779768 A JPS5779768 A JP S5779768A
Authority
JP
Japan
Prior art keywords
video signal
signal processing
processing system
digital
converted
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
JP55155171A
Other languages
Japanese (ja)
Inventor
Mutsuo Ogawa
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
Priority to JP55155171A priority Critical patent/JPS5779768A/en
Publication of JPS5779768A publication Critical patent/JPS5779768A/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
    • H04N1/403—Discrimination between the two tones in the picture signal of a two-tone original

Landscapes

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

Abstract

PURPOSE:To reproduce a picture with fidelity to an original, by converting an analog video signal into a digital video signal, and obtaining the digital video signal at every one bit corresponding to each video element, then the comparing the signal with a reference data. CONSTITUTION:An analog video signal (a) from a read-in element is converted into a digital data in 8-bit at an A/D converter 1. The digital data converted at the A/D converter 1 and sequentially outputted on a bus 6 each 8-bit is compared with a reference data with a CPU4 and converted into the digital video signal at each one bit corresponding to each video element.
JP55155171A 1980-11-06 1980-11-06 Video signal processing system Pending JPS5779768A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55155171A JPS5779768A (en) 1980-11-06 1980-11-06 Video signal processing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55155171A JPS5779768A (en) 1980-11-06 1980-11-06 Video signal processing system

Publications (1)

Publication Number Publication Date
JPS5779768A true JPS5779768A (en) 1982-05-19

Family

ID=15600048

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55155171A Pending JPS5779768A (en) 1980-11-06 1980-11-06 Video signal processing system

Country Status (1)

Country Link
JP (1) JPS5779768A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5299723A (en) * 1976-02-17 1977-08-22 Sumitomo Electric Ind Ltd Circuit for converting analogous signals to binary value signals

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5299723A (en) * 1976-02-17 1977-08-22 Sumitomo Electric Ind Ltd Circuit for converting analogous signals to binary value signals

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