JPS53113426A - Dark current compensation system for pick up element - Google Patents

Dark current compensation system for pick up element

Info

Publication number
JPS53113426A
JPS53113426A JP2835777A JP2835777A JPS53113426A JP S53113426 A JPS53113426 A JP S53113426A JP 2835777 A JP2835777 A JP 2835777A JP 2835777 A JP2835777 A JP 2835777A JP S53113426 A JPS53113426 A JP S53113426A
Authority
JP
Japan
Prior art keywords
dark current
pick
compensation system
current compensation
ccd
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
JP2835777A
Other languages
Japanese (ja)
Inventor
Yoshiaki Kamimoto
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 JP2835777A priority Critical patent/JPS53113426A/en
Publication of JPS53113426A publication Critical patent/JPS53113426A/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
    • H04N25/60—Noise processing, e.g. detecting, correcting, reducing or removing noise
    • H04N25/63—Noise processing, e.g. detecting, correcting, reducing or removing noise applied to dark current

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)

Abstract

PURPOSE:To obtain the video signal in which the dark current component is independent of the scanning frequency, by using the means detecting the scanning frequency of CCD, converting the amount of detection to a suitable specified amount, and subtracting it from the output of CCD.
JP2835777A 1977-03-15 1977-03-15 Dark current compensation system for pick up element Pending JPS53113426A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2835777A JPS53113426A (en) 1977-03-15 1977-03-15 Dark current compensation system for pick up element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2835777A JPS53113426A (en) 1977-03-15 1977-03-15 Dark current compensation system for pick up element

Publications (1)

Publication Number Publication Date
JPS53113426A true JPS53113426A (en) 1978-10-03

Family

ID=12246351

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2835777A Pending JPS53113426A (en) 1977-03-15 1977-03-15 Dark current compensation system for pick up element

Country Status (1)

Country Link
JP (1) JPS53113426A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4484223A (en) * 1980-06-12 1984-11-20 Canon Kabushiki Kaisha Image sensor
JPS61205076A (en) * 1985-03-08 1986-09-11 Asahi Optical Co Ltd Electronic still camera

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4484223A (en) * 1980-06-12 1984-11-20 Canon Kabushiki Kaisha Image sensor
JPS61205076A (en) * 1985-03-08 1986-09-11 Asahi Optical Co Ltd Electronic still camera

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