JPS5557169A - Initial value setting circuit for electronic watch - Google Patents

Initial value setting circuit for electronic watch

Info

Publication number
JPS5557169A
JPS5557169A JP12923778A JP12923778A JPS5557169A JP S5557169 A JPS5557169 A JP S5557169A JP 12923778 A JP12923778 A JP 12923778A JP 12923778 A JP12923778 A JP 12923778A JP S5557169 A JPS5557169 A JP S5557169A
Authority
JP
Japan
Prior art keywords
initial value
point
value setting
circuit
turned
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.)
Granted
Application number
JP12923778A
Other languages
Japanese (ja)
Other versions
JPS6225997B2 (en
Inventor
Koichi Oota
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.)
Citizen Watch Co Ltd
Original Assignee
Citizen Watch 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 Citizen Watch Co Ltd filed Critical Citizen Watch Co Ltd
Priority to JP12923778A priority Critical patent/JPS5557169A/en
Publication of JPS5557169A publication Critical patent/JPS5557169A/en
Publication of JPS6225997B2 publication Critical patent/JPS6225997B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G99/00—Subject matter not provided for in other groups of this subclass

Landscapes

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

Abstract

PURPOSE:To facilitate an easy performance for the time correction and the circuit test by securing the function of the capacitor of the booster circuit for the initial value setting circuit. CONSTITUTION:When power voltage VSSL is applied to point (a) of booster circuit 11, the output of inverter 11a is turned to reset signal voltage VDD of initial value setting circuit 14. And transistors Tr11c, 11e and 11d are turned on along with Tr11b, 11f and 11g turned off respectively. And capacitor 11h is charged up to voltage VSSL. On the other hand, Tr11g and 11d are forward to secure voltage VSSL at point (c) regardless of point (a), and the same voltage is also secured at point (d). Therefore, Tr11b forming the inverter becomes off and 11c becomes on respectively, and reset signal Pr of voltage VDD is delivered to output point (e) of the inverter. Thus the reset state is obtained to give the initial value setting to the timing counter, accordingly facilitating both the time correcting operation and the circuit test.
JP12923778A 1978-10-20 1978-10-20 Initial value setting circuit for electronic watch Granted JPS5557169A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12923778A JPS5557169A (en) 1978-10-20 1978-10-20 Initial value setting circuit for electronic watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12923778A JPS5557169A (en) 1978-10-20 1978-10-20 Initial value setting circuit for electronic watch

Publications (2)

Publication Number Publication Date
JPS5557169A true JPS5557169A (en) 1980-04-26
JPS6225997B2 JPS6225997B2 (en) 1987-06-05

Family

ID=15004564

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12923778A Granted JPS5557169A (en) 1978-10-20 1978-10-20 Initial value setting circuit for electronic watch

Country Status (1)

Country Link
JP (1) JPS5557169A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57104882A (en) * 1980-12-22 1982-06-30 Seiko Epson Corp Power on clear circuit in electronic watch
JPS5934388U (en) * 1982-08-27 1984-03-03 ジエコ−株式会社 digital clock

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57104882A (en) * 1980-12-22 1982-06-30 Seiko Epson Corp Power on clear circuit in electronic watch
JPS5934388U (en) * 1982-08-27 1984-03-03 ジエコ−株式会社 digital clock

Also Published As

Publication number Publication date
JPS6225997B2 (en) 1987-06-05

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