JPS5558479A - Watch with battery expiration display - Google Patents

Watch with battery expiration display

Info

Publication number
JPS5558479A
JPS5558479A JP13192378A JP13192378A JPS5558479A JP S5558479 A JPS5558479 A JP S5558479A JP 13192378 A JP13192378 A JP 13192378A JP 13192378 A JP13192378 A JP 13192378A JP S5558479 A JPS5558479 A JP S5558479A
Authority
JP
Japan
Prior art keywords
pulses
display
currents
flop
counter
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
JP13192378A
Other languages
Japanese (ja)
Inventor
Yasuo Yoshinaga
Hideki Abe
Yoshinori Sainomoto
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP13192378A priority Critical patent/JPS5558479A/en
Publication of JPS5558479A publication Critical patent/JPS5558479A/en
Pending legal-status Critical Current

Links

Landscapes

  • Stand-By Power Supply Arrangements (AREA)
  • Electromechanical Clocks (AREA)
  • Power Sources (AREA)

Abstract

PURPOSE: To decrease currents consumed, by interrupting currents flowing through a coil for displaying expiration while stopping the operation of an expiring display detecting circuit after displaying the expiration of a battery.
CONSTITUTION: A pulse generator 5 of an expiration display detecting block II generates pulses ϕ14 on the basis of signals from a frequency divider 3 of a watch block I, and the output of a dynamic flip-flop 2 is counted up at a counter 6 by pulses F manufactured from the pulses and counted down at the counter 6 by pulses G. In this case, a transistor 14 is energized, and voltage supplied to an oscillator 1 and the flip-flop 2 is diminshed. When the errors of the counting of the counter 6 become not less than fixed value, a flip-flop 15 is inverted, and currents are let flow through a coil for displaying expiring. When a display plate works, the detecting block II is reset, and the currents of the coil for display are also interrupted.
COPYRIGHT: (C)1980,JPO&Japio
JP13192378A 1978-10-25 1978-10-25 Watch with battery expiration display Pending JPS5558479A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13192378A JPS5558479A (en) 1978-10-25 1978-10-25 Watch with battery expiration display

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13192378A JPS5558479A (en) 1978-10-25 1978-10-25 Watch with battery expiration display

Publications (1)

Publication Number Publication Date
JPS5558479A true JPS5558479A (en) 1980-05-01

Family

ID=15069351

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13192378A Pending JPS5558479A (en) 1978-10-25 1978-10-25 Watch with battery expiration display

Country Status (1)

Country Link
JP (1) JPS5558479A (en)

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