JPS5517427A - Electronic watch with alarm function for cell life - Google Patents
Electronic watch with alarm function for cell lifeInfo
- Publication number
- JPS5517427A JPS5517427A JP9015078A JP9015078A JPS5517427A JP S5517427 A JPS5517427 A JP S5517427A JP 9015078 A JP9015078 A JP 9015078A JP 9015078 A JP9015078 A JP 9015078A JP S5517427 A JPS5517427 A JP S5517427A
- Authority
- JP
- Japan
- Prior art keywords
- level
- gate
- output
- voltage
- alarm
- 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
Landscapes
- Electric Clocks (AREA)
- Electromechanical Clocks (AREA)
Abstract
PURPOSE: To inform the presence of the cell voltage accurately to the user, by detecting the cell voltage at an arbitrary time to automatic sampling, suppressing power consumtpion, and alarming the result with sound.
CONSTITUTION: When the externally operated members S1, S2 are depressed simultaneously, the AND gate 8 is at H level. The voltage detection circuit 9 is sampled at the first operation and when the cell voltage is more than the desired level, L level is outputted and when less than the desired voltage, H level is outputted. As the second operation, through the inverter 10, if the alarm time and the present time are in agreement, the output of the AND 11 is taken at L level to inhibit the alarm coincidence signal. As the third operation, the AND gate 12 is active, and only when the output of the circuit 9 is at H level, the buzzer 15 is activated through the output f2 of the frequency dividing circuit 2, OR gate 13 audio drive circuit 14, to inform the presence of the power supply voltage through the alarm tone corresponding to the frequency f2.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9015078A JPS5517427A (en) | 1978-07-24 | 1978-07-24 | Electronic watch with alarm function for cell life |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9015078A JPS5517427A (en) | 1978-07-24 | 1978-07-24 | Electronic watch with alarm function for cell life |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5517427A true JPS5517427A (en) | 1980-02-06 |
Family
ID=13990461
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9015078A Pending JPS5517427A (en) | 1978-07-24 | 1978-07-24 | Electronic watch with alarm function for cell life |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5517427A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58189396U (en) * | 1982-06-09 | 1983-12-16 | 日産自動車株式会社 | cooling fan |
JPS5953296U (en) * | 1982-09-30 | 1984-04-07 | リズム時計工業株式会社 | Watch battery life notification circuit |
-
1978
- 1978-07-24 JP JP9015078A patent/JPS5517427A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58189396U (en) * | 1982-06-09 | 1983-12-16 | 日産自動車株式会社 | cooling fan |
JPS5953296U (en) * | 1982-09-30 | 1984-04-07 | リズム時計工業株式会社 | Watch battery life notification circuit |
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