JPH01147442A - Camera - Google Patents

Camera

Info

Publication number
JPH01147442A
JPH01147442A JP62306727A JP30672787A JPH01147442A JP H01147442 A JPH01147442 A JP H01147442A JP 62306727 A JP62306727 A JP 62306727A JP 30672787 A JP30672787 A JP 30672787A JP H01147442 A JPH01147442 A JP H01147442A
Authority
JP
Japan
Prior art keywords
transit
circuit
arithmetic unit
holding
condition
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
JP62306727A
Other languages
Japanese (ja)
Other versions
JPH07119923B2 (en
Inventor
Masanori Otsuka
Yasuhiko Shiomi
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 JP62306727A priority Critical patent/JPH07119923B2/en
Publication of JPH01147442A publication Critical patent/JPH01147442A/en
Priority to US07/556,862 priority patent/US5053804A/en
Publication of JPH07119923B2 publication Critical patent/JPH07119923B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE: To widen a range where a great load circuit can be controlled by an arithmetic unit and the power source backup guarantee scope of the arithmetic unit by providing a transit signal generating circuit with indicates transit to holding condition to a holding controlling part and controlling transit to the holding condition by means of load.
CONSTITUTION: When an operating linear system circuit 203 is a motor driving circuit 203, a condition transit signal generating circuit 204 is provided by the compared result of the voltage level from a linear system power source supplying circuit 202 with a first holding condition transit level. The circuit 204 indicates transit to the holding condition to the holding controlling part 205a. In the case of a stroboscopic circuit 203, the condition transit signal generating circuit 204 is provided by the compared result of said voltage level with a second holding condition transit level higher than the first holding condition transit level. When a stroboscopic circuit 203b is in operation, accompanied with the voltage level drop of a cell, the transit to the holding condition of the arithmetic unit 205 is accelerated, and the power source backup of the arithmetic unit is performed with low current consumption. Thus, the range where a great load circuit can be controlled by the arithmetic unit and the power source backup guarantee scope of the arithmetic unit can be widened.
COPYRIGHT: (C)1989,JPO&Japio
JP62306727A 1987-07-10 1987-12-03 camera Expired - Lifetime JPH07119923B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP62306727A JPH07119923B2 (en) 1987-12-03 1987-12-03 camera
US07/556,862 US5053804A (en) 1987-07-10 1990-07-24 Camera having computer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62306727A JPH07119923B2 (en) 1987-12-03 1987-12-03 camera

Publications (2)

Publication Number Publication Date
JPH01147442A true JPH01147442A (en) 1989-06-09
JPH07119923B2 JPH07119923B2 (en) 1995-12-20

Family

ID=17960570

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62306727A Expired - Lifetime JPH07119923B2 (en) 1987-07-10 1987-12-03 camera

Country Status (1)

Country Link
JP (1) JPH07119923B2 (en)

Also Published As

Publication number Publication date
JPH07119923B2 (en) 1995-12-20

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term