JPS5348562A - Driving method of electromagnetic type buzzer for wristwatches - Google Patents

Driving method of electromagnetic type buzzer for wristwatches

Info

Publication number
JPS5348562A
JPS5348562A JP12321476A JP12321476A JPS5348562A JP S5348562 A JPS5348562 A JP S5348562A JP 12321476 A JP12321476 A JP 12321476A JP 12321476 A JP12321476 A JP 12321476A JP S5348562 A JPS5348562 A JP S5348562A
Authority
JP
Japan
Prior art keywords
wristwatches
driving method
electromagnetic type
type buzzer
buzzer
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
JP12321476A
Other languages
Japanese (ja)
Inventor
Hiroo Nomura
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 JP12321476A priority Critical patent/JPS5348562A/en
Publication of JPS5348562A publication Critical patent/JPS5348562A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G13/00—Producing acoustic time signals

Landscapes

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

Abstract

PURPOSE:To achieve the reduction in the buzzer consumption current and the increase in sound volume of an alarm for wristwatches by utilizing a driving circuit which accomplishes a.c. driving with d.c. pulses.
JP12321476A 1976-10-14 1976-10-14 Driving method of electromagnetic type buzzer for wristwatches Pending JPS5348562A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12321476A JPS5348562A (en) 1976-10-14 1976-10-14 Driving method of electromagnetic type buzzer for wristwatches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12321476A JPS5348562A (en) 1976-10-14 1976-10-14 Driving method of electromagnetic type buzzer for wristwatches

Publications (1)

Publication Number Publication Date
JPS5348562A true JPS5348562A (en) 1978-05-02

Family

ID=14855014

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12321476A Pending JPS5348562A (en) 1976-10-14 1976-10-14 Driving method of electromagnetic type buzzer for wristwatches

Country Status (1)

Country Link
JP (1) JPS5348562A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013218075A (en) * 2012-04-06 2013-10-24 Nihon Ceratec Co Ltd Alarm buzzer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013218075A (en) * 2012-04-06 2013-10-24 Nihon Ceratec Co Ltd Alarm buzzer

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