JPS5529728A - Battery life display unit of electronic watch - Google Patents
Battery life display unit of electronic watchInfo
- 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
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
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)
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 |
-
1978
- 1978-08-22 JP JP10211778A patent/JPS5529728A/en active Pending
Cited By (6)
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 |