JPS568967A - Picture detector - Google Patents

Picture detector

Info

Publication number
JPS568967A
JPS568967A JP8346679A JP8346679A JPS568967A JP S568967 A JPS568967 A JP S568967A JP 8346679 A JP8346679 A JP 8346679A JP 8346679 A JP8346679 A JP 8346679A JP S568967 A JPS568967 A JP S568967A
Authority
JP
Japan
Prior art keywords
output
picture
area
photosensing
register
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
JP8346679A
Other languages
Japanese (ja)
Inventor
Isao Yamada
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 JP8346679A priority Critical patent/JPS568967A/en
Publication of JPS568967A publication Critical patent/JPS568967A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Solid State Image Pick-Up Elements (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)

Abstract

PURPOSE:To obtain a miniature picture detector that functions even at a low transfer signal frequency by comparing the output signal of a CCD detector with no storage area to a threshold voltage increasing with time. CONSTITUTION:The output of the CCD detector consisting of photosensing area 4 and read register 5 is generated by scanning on the photosensing area horizontally and has a stepped potential as shown by X1 in accordance with the distances between horizontal scanning positions A-D and read register 5. A picture at each horizontal scanning position is detected as a potential drop while levels of respective steps of the stepped shape in the figure are regarded as reference levels. Receiving the output of register 5 like this and a signal, shown by Y, increasing with time, comparator 6 decides which one is greater and sends the picture information detection output of a character, etc., projected on the photosensing area.
JP8346679A 1979-07-03 1979-07-03 Picture detector Pending JPS568967A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8346679A JPS568967A (en) 1979-07-03 1979-07-03 Picture detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8346679A JPS568967A (en) 1979-07-03 1979-07-03 Picture detector

Publications (1)

Publication Number Publication Date
JPS568967A true JPS568967A (en) 1981-01-29

Family

ID=13803238

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8346679A Pending JPS568967A (en) 1979-07-03 1979-07-03 Picture detector

Country Status (1)

Country Link
JP (1) JPS568967A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5812108A (en) * 1983-04-19 1998-09-22 Canon Kabushiki Kaisha Method of driving optical modulation device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5812108A (en) * 1983-04-19 1998-09-22 Canon Kabushiki Kaisha Method of driving optical modulation device

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