JPS57137872A - Analogue electronic watch - Google Patents

Analogue electronic watch

Info

Publication number
JPS57137872A
JPS57137872A JP2338481A JP2338481A JPS57137872A JP S57137872 A JPS57137872 A JP S57137872A JP 2338481 A JP2338481 A JP 2338481A JP 2338481 A JP2338481 A JP 2338481A JP S57137872 A JPS57137872 A JP S57137872A
Authority
JP
Japan
Prior art keywords
motor
polarity
signal
electronic watch
analogue electronic
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
JP2338481A
Other languages
Japanese (ja)
Inventor
Motoyuki Fujimori
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 JP2338481A priority Critical patent/JPS57137872A/en
Publication of JPS57137872A publication Critical patent/JPS57137872A/en
Pending 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

Abstract

PURPOSE:To omit a regulating structure and to improve the space efficiency and prevent drive miss of a motor, by generating a polarity detecting signal for the motor before a driving signal, which drives the motor at a prescribed period, after releasing the reset. CONSTITUTION:When a stem is pressed in after setting hands, a motor polarity detecting circuit is operated to give a detection signal, which detects the polarity of a motor, to the motor through a motor driving circuit. The stop polarity state of the motor is discriminated, and a driving signal 4a of a polarity by which the motor is rotated normally is supplied to the motor.
JP2338481A 1981-02-19 1981-02-19 Analogue electronic watch Pending JPS57137872A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2338481A JPS57137872A (en) 1981-02-19 1981-02-19 Analogue electronic watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2338481A JPS57137872A (en) 1981-02-19 1981-02-19 Analogue electronic watch

Publications (1)

Publication Number Publication Date
JPS57137872A true JPS57137872A (en) 1982-08-25

Family

ID=12109022

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2338481A Pending JPS57137872A (en) 1981-02-19 1981-02-19 Analogue electronic watch

Country Status (1)

Country Link
JP (1) JPS57137872A (en)

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