JPS5524643A - Electronic watch - Google Patents
Electronic watchInfo
- Publication number
- JPS5524643A JPS5524643A JP9765978A JP9765978A JPS5524643A JP S5524643 A JPS5524643 A JP S5524643A JP 9765978 A JP9765978 A JP 9765978A JP 9765978 A JP9765978 A JP 9765978A JP S5524643 A JPS5524643 A JP S5524643A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- electronic watch
- watch
- capacity
- voltage
- 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
Links
Abstract
PURPOSE: To detect the terminal voltage of a battery, while an electronic watch is being used, so that the capacity of the battery can be optically displayed, by using such a battery in the watch as has its voltage proportional to the electric capacity.
CONSTITUTION: When a switch 10 is turned on, the terminal voltage of such a secondary battery E0 for an electronic watch as has its voltage proportional to an electric capacity is detected through voltage dividing resistors r1 and r2 of a light emitting element drive unit 8 so that LEDs L1, L2 and so on are lit through the corresponding drivers T1, T2 and so on of a light emitting element drive unit 9 is response to the comparison outputs of the comparators C1, C2 and so on which have their standard voltages get stepwise. By these lighting operations, the capacity of the battery E0 can be displayed even while the watch is being used. As a result, it is possible to easily and accurately judge whether the charge circuit connected with the battery E0 is driven or not thereby to provided an electronic watch which is conveniently used.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9765978A JPS5524643A (en) | 1978-08-10 | 1978-08-10 | Electronic watch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9765978A JPS5524643A (en) | 1978-08-10 | 1978-08-10 | Electronic watch |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5524643A true JPS5524643A (en) | 1980-02-21 |
Family
ID=14198185
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9765978A Pending JPS5524643A (en) | 1978-08-10 | 1978-08-10 | Electronic watch |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5524643A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03173522A (en) * | 1989-12-04 | 1991-07-26 | Matsushita Electric Ind Co Ltd | Charging type cleaner |
-
1978
- 1978-08-10 JP JP9765978A patent/JPS5524643A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03173522A (en) * | 1989-12-04 | 1991-07-26 | Matsushita Electric Ind Co Ltd | Charging type cleaner |
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