JPS57170679A - Power supply controlling system for electronic camera - Google Patents
Power supply controlling system for electronic cameraInfo
- 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
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
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)
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)
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 |
-
1981
- 1981-04-14 JP JP56055793A patent/JPH0658618B2/en not_active Expired - Lifetime
Patent Citations (3)
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)
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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