JPS578473A - Electronic timepiece - Google Patents

Electronic timepiece

Info

Publication number
JPS578473A
JPS578473A JP8357580A JP8357580A JPS578473A JP S578473 A JPS578473 A JP S578473A JP 8357580 A JP8357580 A JP 8357580A JP 8357580 A JP8357580 A JP 8357580A JP S578473 A JPS578473 A JP S578473A
Authority
JP
Japan
Prior art keywords
oscillation
quartz
capacitor
restarting
run
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
JP8357580A
Other languages
Japanese (ja)
Inventor
Yoshiaki Maehira
Tadashi Sano
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 JP8357580A priority Critical patent/JPS578473A/en
Publication of JPS578473A publication Critical patent/JPS578473A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C10/00—Arrangements of electric power supplies in time pieces
    • G04C10/04—Arrangements of electric power supplies in time pieces with means for indicating the condition of the power supply

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)

Abstract

PURPOSE:To eliminate the difference in battery life run-out announcing functions (BLA) due to the variance in circuits by detecting the oscillation stop of a quartz oscillating circuit, thereafter increasing the amplification factor of the amplifier of the quartz oscillating circuit thereby restarting oscillation and displaying that the life of a battery is near the termination. CONSTITUTION:The signal 9 emitted from a quartz vibrator fetches a suitable signal from the midway of a frequency dividing circuit DIV by a waveform forming circuit MCD, and converts the same to differentiating pulses 10, by which a charging transistor Nd is turned on intermittently, and a capacitor C is charged. The capacitor C is discharged by a discharge resistance R, and therefore, when the oscillation stops, the output 13 of a reset flip-flop FF is fixed at an H level after a constant time determined by a time constant Rc, thereby turning on Pc and Nc, and restarting the oscillation of the quartz. At the same time, information is fed to a decoder to turn on and off the display and to announce the run-out of battery life.
JP8357580A 1980-06-20 1980-06-20 Electronic timepiece Pending JPS578473A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8357580A JPS578473A (en) 1980-06-20 1980-06-20 Electronic timepiece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8357580A JPS578473A (en) 1980-06-20 1980-06-20 Electronic timepiece

Publications (1)

Publication Number Publication Date
JPS578473A true JPS578473A (en) 1982-01-16

Family

ID=13806298

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8357580A Pending JPS578473A (en) 1980-06-20 1980-06-20 Electronic timepiece

Country Status (1)

Country Link
JP (1) JPS578473A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62194484A (en) * 1986-02-21 1987-08-26 Citizen Watch Co Ltd Electronic time-piece with alarm display
JPH06156522A (en) * 1992-11-11 1994-06-03 Toska Co Ltd Article engaging material
JPH06186910A (en) * 1992-12-17 1994-07-08 Toska Co Ltd Article detaining material
WO2000044628A1 (en) 1999-01-29 2000-08-03 Toska Co., Ltd. Filament-shaped connection body connection method and device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62194484A (en) * 1986-02-21 1987-08-26 Citizen Watch Co Ltd Electronic time-piece with alarm display
JPH06156522A (en) * 1992-11-11 1994-06-03 Toska Co Ltd Article engaging material
JPH06186910A (en) * 1992-12-17 1994-07-08 Toska Co Ltd Article detaining material
WO2000044628A1 (en) 1999-01-29 2000-08-03 Toska Co., Ltd. Filament-shaped connection body connection method and device

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