JPS5529728A - Battery life display unit of electronic watch - Google Patents

Battery life display unit of electronic watch

Info

Publication number
JPS5529728A
JPS5529728A JP10211778A JP10211778A JPS5529728A JP S5529728 A JPS5529728 A JP S5529728A JP 10211778 A JP10211778 A JP 10211778A JP 10211778 A JP10211778 A JP 10211778A JP S5529728 A JPS5529728 A JP S5529728A
Authority
JP
Japan
Prior art keywords
lamp
battery voltage
display unit
battery life
electronic watch
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
JP10211778A
Other languages
Japanese (ja)
Inventor
Masahide Hirabayashi
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.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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 Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP10211778A priority Critical patent/JPS5529728A/en
Publication of JPS5529728A publication Critical patent/JPS5529728A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To utilizing a lamp to display the life of a battery by extinguishing a lamp, which is lit by a lamp control circuit at a normal state time, at a battery voltage lowering time.
CONSTITUTION: In case of a normal state of a battery voltage, the battery voltage is detected by battery voltage detection circuit 7 on a basis of lamp control circuit 9, and lamp control 8 is turned on to make lighting dependent upon lamp switch 10 possible. In case of a battery voltage lowering control circuit 9 turns off lamp control 8, and the lamp is extinguished even if switch 10 is turned on.
COPYRIGHT: (C)1980,JPO&Japio
JP10211778A 1978-08-22 1978-08-22 Battery life display unit of electronic watch Pending JPS5529728A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10211778A JPS5529728A (en) 1978-08-22 1978-08-22 Battery life display unit of electronic watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10211778A JPS5529728A (en) 1978-08-22 1978-08-22 Battery life display unit of electronic watch

Publications (1)

Publication Number Publication Date
JPS5529728A true JPS5529728A (en) 1980-03-03

Family

ID=14318847

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10211778A Pending JPS5529728A (en) 1978-08-22 1978-08-22 Battery life display unit of electronic watch

Country Status (1)

Country Link
JP (1) JPS5529728A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5858492A (en) * 1981-10-01 1983-04-07 Seiko Epson Corp Electronic clock
US4396581A (en) * 1980-12-17 1983-08-02 Hoechst Aktiengesellschaft Apparatus for making phosphorus pentasulfide
JPS58168123A (en) * 1982-03-16 1983-10-04 シ−メンス・アクチエンゲゼルシヤフト Power source trouble detector/memory
EP0603815A2 (en) * 1992-12-24 1994-06-29 Braun Aktiengesellschaft Electronic clock independent of main electricity supply

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4396581A (en) * 1980-12-17 1983-08-02 Hoechst Aktiengesellschaft Apparatus for making phosphorus pentasulfide
JPS5858492A (en) * 1981-10-01 1983-04-07 Seiko Epson Corp Electronic clock
JPH039434B2 (en) * 1981-10-01 1991-02-08 Seiko Epson Corp
JPS58168123A (en) * 1982-03-16 1983-10-04 シ−メンス・アクチエンゲゼルシヤフト Power source trouble detector/memory
EP0603815A2 (en) * 1992-12-24 1994-06-29 Braun Aktiengesellschaft Electronic clock independent of main electricity supply
EP0603815A3 (en) * 1992-12-24 1995-02-22 Braun Ag Electronic clock independent of main electricity supply.

Similar Documents

Publication Publication Date Title
JPS5210775A (en) Electronic watch
JPS5529728A (en) Battery life display unit of electronic watch
JPS53138768A (en) Electronic watch with alarm
JPS5357876A (en) Watch with battery life warning display
JPS57199979A (en) Timepiece
JPS51127583A (en) Lighting apparatus
JPS53143264A (en) Electronic watch
JPS5526481A (en) Electronic watch
JPS5492097A (en) Liquid crystal display unit
JPS54153068A (en) Lamp lighting circuit of electronic wristwatches
JPS52122498A (en) Operation display lamp lighting circuit of fire sensor
JPS5398050A (en) Power supply
JPS5679283A (en) Timepiece having alarm
JPS5397273A (en) Lamp testing circuit
JPS5536718A (en) Level display unit
JPS52154159A (en) Door switch of refrigerator
JPS52149919A (en) Electronic equipment
JPS53144775A (en) Electronic watch with lamp
JPS56163474A (en) Electronic timepiece
JPS5469736A (en) Emergency light
JPS5217795A (en) Fire alarming device
JPS534583A (en) Conduction tester
JPS5466038A (en) Display unit
JPS5251975A (en) Electronic watch
JPS5467650A (en) Power interruption recovery controller