JPS5355074A - Electronic wristwatch - Google Patents

Electronic wristwatch

Info

Publication number
JPS5355074A
JPS5355074A JP12978176A JP12978176A JPS5355074A JP S5355074 A JPS5355074 A JP S5355074A JP 12978176 A JP12978176 A JP 12978176A JP 12978176 A JP12978176 A JP 12978176A JP S5355074 A JPS5355074 A JP S5355074A
Authority
JP
Japan
Prior art keywords
electronic wristwatch
driving current
waveform
rotor
cutting
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
JP12978176A
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 JP12978176A priority Critical patent/JPS5355074A/en
Publication of JPS5355074A publication Critical patent/JPS5355074A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE:To achieve the reduction in power consumption of an electronic wristwatch by detecting the rotating condition of a rotor from the waveform of driving current and cutting off more than necessary driving current to a step motor.
JP12978176A 1976-10-28 1976-10-28 Electronic wristwatch Pending JPS5355074A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12978176A JPS5355074A (en) 1976-10-28 1976-10-28 Electronic wristwatch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12978176A JPS5355074A (en) 1976-10-28 1976-10-28 Electronic wristwatch

Publications (1)

Publication Number Publication Date
JPS5355074A true JPS5355074A (en) 1978-05-19

Family

ID=15018054

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12978176A Pending JPS5355074A (en) 1976-10-28 1976-10-28 Electronic wristwatch

Country Status (1)

Country Link
JP (1) JPS5355074A (en)

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