JPS57170679A - Power supply controlling system for electronic camera - Google Patents

Power supply controlling system for electronic camera

Info

Publication number
JPS57170679A
JPS57170679A JP56055793A JP5579381A JPS57170679A JP S57170679 A JPS57170679 A JP S57170679A JP 56055793 A JP56055793 A JP 56055793A JP 5579381 A JP5579381 A JP 5579381A JP S57170679 A JPS57170679 A JP S57170679A
Authority
JP
Japan
Prior art keywords
electric power
signal
power supply
memory
detecting
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.)
Granted
Application number
JP56055793A
Other languages
Japanese (ja)
Other versions
JPH0658618B2 (en
Inventor
Kenji Toyoda
Takao Watanabe
Hideya Inoue
Sumiyoshi Kasuya
Yutaka Ichihara
Akira Miyaji
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.)
Nikon Corp
Original Assignee
Nikon Corp
Nippon Kogaku KK
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 Nikon Corp, Nippon Kogaku KK filed Critical Nikon Corp
Priority to JP56055793A priority Critical patent/JPH0658618B2/en
Publication of JPS57170679A publication Critical patent/JPS57170679A/en
Publication of JPH0658618B2 publication Critical patent/JPH0658618B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE: To save electric power consumption by cutting off power supply to both a storage and the peripheral circuits when no image signal is stored in a memory.
CONSTITUTION: When no start signal detecting output is applied to the whole output terminals, i.e., there is no used memory (a memory storing picture signal of a photographed picture which has not yet been transferred to an external storing medium, an image signal to be stored), a detecting device 2b sends a detecting signal of low level to the gate of an N channel MOSFETQ1 and turns off the FETQ1. Therefore, electric power can not be supplied from a backup electric power battery E1 with comparatively small capacity to a storage 2a and the detecting device 2b, preventing the battery E1 from unnecessary electric power consumption.
COPYRIGHT: (C)1982,JPO&Japio
JP56055793A 1981-04-14 1981-04-14 Memory device Expired - Lifetime JPH0658618B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56055793A JPH0658618B2 (en) 1981-04-14 1981-04-14 Memory device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56055793A JPH0658618B2 (en) 1981-04-14 1981-04-14 Memory device

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2006847A Division JPH0354973A (en) 1990-01-16 1990-01-16 Feed control device for electronic camera

Publications (2)

Publication Number Publication Date
JPS57170679A true JPS57170679A (en) 1982-10-20
JPH0658618B2 JPH0658618B2 (en) 1994-08-03

Family

ID=13008783

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56055793A Expired - Lifetime JPH0658618B2 (en) 1981-04-14 1981-04-14 Memory device

Country Status (1)

Country Link
JP (1) JPH0658618B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6026324A (en) * 1983-07-21 1985-02-09 Olympus Optical Co Ltd Camera
JPH01176174A (en) * 1987-12-29 1989-07-12 Canon Inc Picture signal recording system
JPH0273226U (en) * 1988-11-25 1990-06-05
JP2002107808A (en) * 2000-09-29 2002-04-10 Matsushita Electric Ind Co Ltd Control method for camera and counter circuit used for the control
WO2007046500A1 (en) * 2005-10-20 2007-04-26 Nikon Corporation Electronic apparatus with camera

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5154735A (en) * 1974-11-08 1976-05-14 Sharp Kk Denshikeisankitono dengenseigyosochi
JPS5299020A (en) * 1976-02-17 1977-08-19 Casio Comput Co Ltd Power supply breaking system for electronic device
JPS54139422A (en) * 1978-04-21 1979-10-29 Canon Inc Picture recording system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5154735A (en) * 1974-11-08 1976-05-14 Sharp Kk Denshikeisankitono dengenseigyosochi
JPS5299020A (en) * 1976-02-17 1977-08-19 Casio Comput Co Ltd Power supply breaking system for electronic device
JPS54139422A (en) * 1978-04-21 1979-10-29 Canon Inc Picture recording system

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6026324A (en) * 1983-07-21 1985-02-09 Olympus Optical Co Ltd Camera
JPH01176174A (en) * 1987-12-29 1989-07-12 Canon Inc Picture signal recording system
JPH0273226U (en) * 1988-11-25 1990-06-05
JP2002107808A (en) * 2000-09-29 2002-04-10 Matsushita Electric Ind Co Ltd Control method for camera and counter circuit used for the control
JP4610068B2 (en) * 2000-09-29 2011-01-12 パナソニック株式会社 Camera control method and counter circuit used for the control method
WO2007046500A1 (en) * 2005-10-20 2007-04-26 Nikon Corporation Electronic apparatus with camera
US8400550B2 (en) 2005-10-20 2013-03-19 Nikon Corporation Camera-equipped electronic device

Also Published As

Publication number Publication date
JPH0658618B2 (en) 1994-08-03

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