JPS57156577A - Display device for remaining time during power failure - Google Patents

Display device for remaining time during power failure

Info

Publication number
JPS57156577A
JPS57156577A JP4151581A JP4151581A JPS57156577A JP S57156577 A JPS57156577 A JP S57156577A JP 4151581 A JP4151581 A JP 4151581A JP 4151581 A JP4151581 A JP 4151581A JP S57156577 A JPS57156577 A JP S57156577A
Authority
JP
Japan
Prior art keywords
power failure
remaining time
display device
microcomputer
power
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
JP4151581A
Other languages
Japanese (ja)
Inventor
Noriyuki Suehiro
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.)
Sanyo Electric Co Ltd
Sanyo Denki Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Sanyo Denki 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 Sanyo Electric Co Ltd, Sanyo Denki Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP4151581A priority Critical patent/JPS57156577A/en
Publication of JPS57156577A publication Critical patent/JPS57156577A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G15/00—Time-pieces comprising means to be operated at preselected times or after preselected time intervals

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Predetermined Time Intervals (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

PURPOSE:To display a remaining time during a power failure while preventing the unnecessary consumption of backup electric power by cutting off a prescribed output through a microcomputer during the power failure, etc., and displaying the remaining time with a switch for time display. CONSTITUTION:If electric feeding by a commercial power source from a waveform shaping circuit 17 is cut off continuously for prescribed seconds owing to a power failure, etc., a microcomputer 8 discriminates the power failure, and the output of the microcomputer 8, applied with backup electric power by a soler battery 19, etc., to a remaining-time display device 5, relays 10 and 11, a buzzer 9, etc., is cut off. In this state, when a switch 18 for time display is operated, the remaining time is displayed on the display device 5 and during the power failure, the unnecessary consumption of backup electric power is eliminated; and the remaining time is displayed and simultaneously with the restart of feeding, automatic recovery is performed, so that the remaining time display device for a power failure suitable for a coin launderette device, etc., is obtained.
JP4151581A 1981-03-20 1981-03-20 Display device for remaining time during power failure Pending JPS57156577A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4151581A JPS57156577A (en) 1981-03-20 1981-03-20 Display device for remaining time during power failure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4151581A JPS57156577A (en) 1981-03-20 1981-03-20 Display device for remaining time during power failure

Publications (1)

Publication Number Publication Date
JPS57156577A true JPS57156577A (en) 1982-09-27

Family

ID=12610506

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4151581A Pending JPS57156577A (en) 1981-03-20 1981-03-20 Display device for remaining time during power failure

Country Status (1)

Country Link
JP (1) JPS57156577A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5339296A (en) * 1992-06-03 1994-08-16 General Time Corporation Electric alarm clock with battery back-up

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5339296A (en) * 1992-06-03 1994-08-16 General Time Corporation Electric alarm clock with battery back-up

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