JPS5382481A - Electronic wristwatch - Google Patents

Electronic wristwatch

Info

Publication number
JPS5382481A
JPS5382481A JP15860076A JP15860076A JPS5382481A JP S5382481 A JPS5382481 A JP S5382481A JP 15860076 A JP15860076 A JP 15860076A JP 15860076 A JP15860076 A JP 15860076A JP S5382481 A JPS5382481 A JP S5382481A
Authority
JP
Japan
Prior art keywords
electronic wristwatch
open state
driving pulse
pulse
state
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
JP15860076A
Other languages
Japanese (ja)
Inventor
Hiroshi Ishii
Minoru Hosokawa
Yoshii Kawamura
Sakio Okazaki
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 JP15860076A priority Critical patent/JPS5382481A/en
Publication of JPS5382481A publication Critical patent/JPS5382481A/en
Pending legal-status Critical Current

Links

Landscapes

  • Electromechanical Clocks (AREA)
  • Control Of Stepping Motors (AREA)

Abstract

PURPOSE:To make the operation of a pulse motor stable and positive by holding an electromagnetic coil in an open state for a fixed time after application of a driving pulse, thereafter maintaining it in a shortcircuited state so that it is held in an open state immediate before the driving pulse of the next period is applied.
JP15860076A 1976-12-28 1976-12-28 Electronic wristwatch Pending JPS5382481A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15860076A JPS5382481A (en) 1976-12-28 1976-12-28 Electronic wristwatch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15860076A JPS5382481A (en) 1976-12-28 1976-12-28 Electronic wristwatch

Publications (1)

Publication Number Publication Date
JPS5382481A true JPS5382481A (en) 1978-07-20

Family

ID=15675225

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15860076A Pending JPS5382481A (en) 1976-12-28 1976-12-28 Electronic wristwatch

Country Status (1)

Country Link
JP (1) JPS5382481A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017058381A (en) * 2016-12-27 2017-03-23 シチズン時計株式会社 Electronic clock

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017058381A (en) * 2016-12-27 2017-03-23 シチズン時計株式会社 Electronic clock

Similar Documents

Publication Publication Date Title
JPS53132380A (en) Electronic watch
JPS5515054A (en) Electronic watch
JPS53136870A (en) Electronic watch
JPS52132874A (en) Electronic timepiece
JPS5384782A (en) Electronic wristwatch
JPS5382481A (en) Electronic wristwatch
JPS53132381A (en) Electronic watch
JPS5418018A (en) Pulse motor drive circuit
JPS52113262A (en) Correction method for electronic watch
JPS547374A (en) Step motor device for electronic watches
JPS5321966A (en) Electric-mechanical converter driving circuit for timepiece
JPS51145362A (en) Time informing watch
JPS5249407A (en) Reversibible pluse motor for electronic watch
JPS52110665A (en) Circuit for electronic clock
JPS5412865A (en) Electronic wristwatch
JPS5348562A (en) Driving method of electromagnetic type buzzer for wristwatches
JPS5372112A (en) Drive circuit for step motor
JPS5327739A (en) Electronic ignition sysgem
JPS52156323A (en) Driver circuit for pulse motor
JPS5371869A (en) Electronic wristwatch
JPS5283158A (en) Timing circuit
JPS5280064A (en) Displaying method for battery voltages of electronic watches
JPS5376066A (en) Analog display electronic wristwatch
JPS5412864A (en) Electronic watch
JPS5244122A (en) Core memory driving circuit