JPS6113194B2 - - Google Patents

Info

Publication number
JPS6113194B2
JPS6113194B2 JP14417077A JP14417077A JPS6113194B2 JP S6113194 B2 JPS6113194 B2 JP S6113194B2 JP 14417077 A JP14417077 A JP 14417077A JP 14417077 A JP14417077 A JP 14417077A JP S6113194 B2 JPS6113194 B2 JP S6113194B2
Authority
JP
Japan
Prior art keywords
pulse
signal
circuit
motor
drive
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
JP14417077A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5476265A (en
Inventor
Akira Torisawa
Jun Ueda
Masaaki Bandai
Shuji Ootawa
Masaharu Shida
Katsuhiko Sato
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 Instruments Inc
Original Assignee
Seiko Instruments Inc
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 Instruments Inc filed Critical Seiko Instruments Inc
Priority to JP14417077A priority Critical patent/JPS5476265A/ja
Publication of JPS5476265A publication Critical patent/JPS5476265A/ja
Publication of JPS6113194B2 publication Critical patent/JPS6113194B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/14—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating a stepping motor
    • G04C3/143—Means to reduce power consumption by reducing pulse width or amplitude and related problems, e.g. detection of unwanted or missing step

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Control Of Stepping Motors (AREA)
JP14417077A 1977-11-30 1977-11-30 Motor revolution detecting system of electronic wristwatch Granted JPS5476265A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14417077A JPS5476265A (en) 1977-11-30 1977-11-30 Motor revolution detecting system of electronic wristwatch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14417077A JPS5476265A (en) 1977-11-30 1977-11-30 Motor revolution detecting system of electronic wristwatch

Publications (2)

Publication Number Publication Date
JPS5476265A JPS5476265A (en) 1979-06-18
JPS6113194B2 true JPS6113194B2 (enExample) 1986-04-11

Family

ID=15355821

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14417077A Granted JPS5476265A (en) 1977-11-30 1977-11-30 Motor revolution detecting system of electronic wristwatch

Country Status (1)

Country Link
JP (1) JPS5476265A (enExample)

Also Published As

Publication number Publication date
JPS5476265A (en) 1979-06-18

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