JPS57212877A - Pickup device - Google Patents

Pickup device

Info

Publication number
JPS57212877A
JPS57212877A JP56098670A JP9867081A JPS57212877A JP S57212877 A JPS57212877 A JP S57212877A JP 56098670 A JP56098670 A JP 56098670A JP 9867081 A JP9867081 A JP 9867081A JP S57212877 A JPS57212877 A JP S57212877A
Authority
JP
Japan
Prior art keywords
signal
circuit
sections
dark
stored
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
JP56098670A
Other languages
Japanese (ja)
Inventor
Tetsuo Sueda
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 JP56098670A priority Critical patent/JPS57212877A/en
Publication of JPS57212877A publication Critical patent/JPS57212877A/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

Abstract

PURPOSE:To perform compensation of sensitivity, by providing a circuit storing a dark and bright level signals at each protodetector and compensating a photoelectric output signal based on the stored signal. CONSTITUTION:A solid-state image pickup element 11 has a lot of photodetection sections 12, converts received light into an electric signal and applies the signal to an operation circuit 14 via a driving circuit 13. To the circuit 14, two storage circuits 15 and 16 storing data corresponding to the number of the sections 12 are connected. When no light is made incident to the element 11, a photoelectric output signal from the sections 12 is stored as a dark level signal of the storage circuit 15 and when a light of high level is uniformly made incident to the element 11 with a prescribed intensity, the photoelectric output signal from the sections 12 is stored as a bright level signal. The circuit 14 uses both dark and bright signals and compensates the output from each photodetection section for output.
JP56098670A 1981-06-24 1981-06-24 Pickup device Pending JPS57212877A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56098670A JPS57212877A (en) 1981-06-24 1981-06-24 Pickup device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56098670A JPS57212877A (en) 1981-06-24 1981-06-24 Pickup device

Publications (1)

Publication Number Publication Date
JPS57212877A true JPS57212877A (en) 1982-12-27

Family

ID=14225943

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56098670A Pending JPS57212877A (en) 1981-06-24 1981-06-24 Pickup device

Country Status (1)

Country Link
JP (1) JPS57212877A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61125289A (en) * 1984-11-20 1986-06-12 Fujitsu Ltd Pickup device
EP0212733A2 (en) * 1985-08-14 1987-03-04 Philips Patentverwaltung GmbH Method and apparatus for the production of X-ray images using photoconductors

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61125289A (en) * 1984-11-20 1986-06-12 Fujitsu Ltd Pickup device
EP0212733A2 (en) * 1985-08-14 1987-03-04 Philips Patentverwaltung GmbH Method and apparatus for the production of X-ray images using photoconductors

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