JPS6464474A - Video signal processing system - Google Patents

Video signal processing system

Info

Publication number
JPS6464474A
JPS6464474A JP62221153A JP22115387A JPS6464474A JP S6464474 A JPS6464474 A JP S6464474A JP 62221153 A JP62221153 A JP 62221153A JP 22115387 A JP22115387 A JP 22115387A JP S6464474 A JPS6464474 A JP S6464474A
Authority
JP
Japan
Prior art keywords
written
video signal
image pickup
signal
charge storing
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
JP62221153A
Other languages
Japanese (ja)
Inventor
Yoshitake Nagashima
Teruo Hieda
Katsuji Yoshimura
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 JP62221153A priority Critical patent/JPS6464474A/en
Publication of JPS6464474A publication Critical patent/JPS6464474A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To properly conduct out a video signal under a low illumination by lengthily-setting the storage time of an image pickup means variable in a charge storing time and repeatedly reading and outputting a signal written in a field memory. CONSTITUTION:At the time of impressing a low speed shutter designating signal, the charge storing time longer than the rate of a standard TV system is set to the image pickup circuit variable in the charge storing time through a driving circuit 33 by a system control circuit 70 and a switch 54 is switched to a contact (b) side simultaneously. Thereby, in an A/D converter 46, the image pickup signal of a completion one field is written in the field memory 48, repeatedly read during a period until a next one field is written, outputted via a D/A converter 50, a switch 54 and the proper video signal can be conducted out under the low illuminance.
JP62221153A 1987-09-03 1987-09-03 Video signal processing system Pending JPS6464474A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62221153A JPS6464474A (en) 1987-09-03 1987-09-03 Video signal processing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62221153A JPS6464474A (en) 1987-09-03 1987-09-03 Video signal processing system

Publications (1)

Publication Number Publication Date
JPS6464474A true JPS6464474A (en) 1989-03-10

Family

ID=16762305

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62221153A Pending JPS6464474A (en) 1987-09-03 1987-09-03 Video signal processing system

Country Status (1)

Country Link
JP (1) JPS6464474A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04170175A (en) * 1990-11-02 1992-06-17 Canon Inc Driver for solid-state image pickup element

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS574672A (en) * 1980-06-11 1982-01-11 Hitachi Ltd Solid-state pickup device
JPS5937778A (en) * 1982-08-25 1984-03-01 Asahi Hoso Kk Variable exposure television camera device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS574672A (en) * 1980-06-11 1982-01-11 Hitachi Ltd Solid-state pickup device
JPS5937778A (en) * 1982-08-25 1984-03-01 Asahi Hoso Kk Variable exposure television camera device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04170175A (en) * 1990-11-02 1992-06-17 Canon Inc Driver for solid-state image pickup element

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