JPS6248839B2 - - Google Patents

Info

Publication number
JPS6248839B2
JPS6248839B2 JP55161628A JP16162880A JPS6248839B2 JP S6248839 B2 JPS6248839 B2 JP S6248839B2 JP 55161628 A JP55161628 A JP 55161628A JP 16162880 A JP16162880 A JP 16162880A JP S6248839 B2 JPS6248839 B2 JP S6248839B2
Authority
JP
Japan
Prior art keywords
buzzer
transistor
piezoelectric buzzer
piezoelectric
present
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.)
Expired
Application number
JP55161628A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5785095A (en
Inventor
Eiji Momozaki
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
Original Assignee
Seiko Epson Corp
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 filed Critical Seiko Epson Corp
Priority to JP55161628A priority Critical patent/JPS5785095A/ja
Publication of JPS5785095A publication Critical patent/JPS5785095A/ja
Publication of JPS6248839B2 publication Critical patent/JPS6248839B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Electromechanical Clocks (AREA)
  • Circuit For Audible Band Transducer (AREA)
JP55161628A 1980-11-17 1980-11-17 Buzzer drive system Granted JPS5785095A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55161628A JPS5785095A (en) 1980-11-17 1980-11-17 Buzzer drive system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55161628A JPS5785095A (en) 1980-11-17 1980-11-17 Buzzer drive system

Publications (2)

Publication Number Publication Date
JPS5785095A JPS5785095A (en) 1982-05-27
JPS6248839B2 true JPS6248839B2 (en:Method) 1987-10-15

Family

ID=15738791

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55161628A Granted JPS5785095A (en) 1980-11-17 1980-11-17 Buzzer drive system

Country Status (1)

Country Link
JP (1) JPS5785095A (en:Method)

Also Published As

Publication number Publication date
JPS5785095A (en) 1982-05-27

Similar Documents

Publication Publication Date Title
US4068461A (en) Digital electronic alarm watch
JPH06503188A (ja) 重り付き変換器及びフィードバック機構を備えた駆動回路
US3940919A (en) Electronic wristwatch with electronic sound emitter device
US4139842A (en) Audible alarm unit
US4023162A (en) Electronic buzzer
US3788060A (en) Watch with an electronic buzzer
JPS60235541A (ja) ページング装置
JPS6248839B2 (en:Method)
US5635788A (en) Control circuit for a piezoelectric vibrator
JPS5815748B2 (ja) トケイヨウコガタブザ−
US4526477A (en) Piezoelectric buzzer for wrist watches
US4736192A (en) Excitation circuit for piezo-electric sound generators
JPS6248840B2 (en:Method)
JPS6225039Y2 (en:Method)
GB1087956A (en) Alarm timepiece
JPH06224824A (ja) 無線呼出用受信機
JPS5946356B2 (ja) ブザ−付電子時計
JPH0116153Y2 (en:Method)
US3653040A (en) Electronic chime alarm
JPH08155392A (ja) 圧電磁気振動装置とその駆動方法
JPS589200A (ja) 機械接点式圧電ブザ−
JPS5844398Y2 (ja) 時計装置
JPS59171881A (ja) アラ−ム付電子腕時計
JPS6012595B2 (ja) 電子時計
US3780520A (en) Watch having tuning fork time standard