JPS5517427A - Electronic watch with alarm function for cell life - Google Patents

Electronic watch with alarm function for cell life

Info

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
Application number
JP9015078A
Other languages
Japanese (ja)
Inventor
Hideaki Shibuya
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.)
Citizen Watch Co Ltd
Original Assignee
Citizen Watch Co Ltd
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 Citizen Watch Co Ltd filed Critical Citizen Watch Co Ltd
Priority to JP9015078A priority Critical patent/JPS5517427A/en
Publication of JPS5517427A publication Critical patent/JPS5517427A/en
Pending legal-status Critical Current

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  • 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
JP9015078A 1978-07-24 1978-07-24 Electronic watch with alarm function for cell life Pending JPS5517427A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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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