JPS5589782A - Electronic watch - Google Patents

Electronic watch

Info

Publication number
JPS5589782A
JPS5589782A JP16387378A JP16387378A JPS5589782A JP S5589782 A JPS5589782 A JP S5589782A JP 16387378 A JP16387378 A JP 16387378A JP 16387378 A JP16387378 A JP 16387378A JP S5589782 A JPS5589782 A JP S5589782A
Authority
JP
Japan
Prior art keywords
circuit
signal
motor
turning
counted
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
JP16387378A
Other languages
Japanese (ja)
Inventor
Kenichi Kondo
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 Instruments Inc
Original Assignee
Seiko Instruments Inc
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 Instruments Inc filed Critical Seiko Instruments Inc
Priority to JP16387378A priority Critical patent/JPS5589782A/en
Publication of JPS5589782A publication Critical patent/JPS5589782A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/14—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating a stepping motor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)

Abstract

PURPOSE:To save the power and to make long the life of battery, by stopping the pulse motor only when the pointer operation is not required. CONSTITUTION:The reference signal from the oscillation circuit 1 is frequency divided 2, and the 1Hz signal of frequency divided output is fed to the AND circuit 8. Normally, the touch switch circuit 14 is ON, 1Hz signal P is fed to the drive circuit 5, and time display 7 is made by turning the pulse motor 6. On the other hand, when the circuit 14 is OFF, 1Hz signal P is stopped at the circuit 8 and the motor 6 stops turning. In this case, the 1Hz signal P is counted at the counter 4 via the OR circuit 17 and the stop time of the motor 6 is counted. Further, when the circuit 14 is again ON, the counter 4 performs subtraction with the fast feed signal Q in frequency division 2, and the motor 6 performs fast turning with the sum of the signals P and Q up to the time corresponding to the stop time.
JP16387378A 1978-12-27 1978-12-27 Electronic watch Pending JPS5589782A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16387378A JPS5589782A (en) 1978-12-27 1978-12-27 Electronic watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16387378A JPS5589782A (en) 1978-12-27 1978-12-27 Electronic watch

Publications (1)

Publication Number Publication Date
JPS5589782A true JPS5589782A (en) 1980-07-07

Family

ID=15782389

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16387378A Pending JPS5589782A (en) 1978-12-27 1978-12-27 Electronic watch

Country Status (1)

Country Link
JP (1) JPS5589782A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57139683A (en) * 1981-02-24 1982-08-28 Seiko Instr & Electronics Ltd Electronic clock
US4702613A (en) * 1985-03-05 1987-10-27 Seiko Instruments & Electronics Ltd. Electronic timepiece driven by a plurality of stepping motors and powered by a solar cell
WO1999017174A1 (en) * 1997-10-01 1999-04-08 Citizen Watch Co., Ltd. Small-sized electronic equipment

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57139683A (en) * 1981-02-24 1982-08-28 Seiko Instr & Electronics Ltd Electronic clock
US4702613A (en) * 1985-03-05 1987-10-27 Seiko Instruments & Electronics Ltd. Electronic timepiece driven by a plurality of stepping motors and powered by a solar cell
WO1999017174A1 (en) * 1997-10-01 1999-04-08 Citizen Watch Co., Ltd. Small-sized electronic equipment

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