JPH0222349B2 - - Google Patents

Info

Publication number
JPH0222349B2
JPH0222349B2 JP56171706A JP17170681A JPH0222349B2 JP H0222349 B2 JPH0222349 B2 JP H0222349B2 JP 56171706 A JP56171706 A JP 56171706A JP 17170681 A JP17170681 A JP 17170681A JP H0222349 B2 JPH0222349 B2 JP H0222349B2
Authority
JP
Japan
Prior art keywords
circuit
rom
pulse
drive
pulse width
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 - Lifetime
Application number
JP56171706A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5872084A (ja
Inventor
Hiroyuki Odagiri
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 JP17170681A priority Critical patent/JPS5872084A/ja
Publication of JPS5872084A publication Critical patent/JPS5872084A/ja
Publication of JPH0222349B2 publication Critical patent/JPH0222349B2/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)
JP17170681A 1981-10-27 1981-10-27 電子時計 Granted JPS5872084A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17170681A JPS5872084A (ja) 1981-10-27 1981-10-27 電子時計

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17170681A JPS5872084A (ja) 1981-10-27 1981-10-27 電子時計

Publications (2)

Publication Number Publication Date
JPS5872084A JPS5872084A (ja) 1983-04-28
JPH0222349B2 true JPH0222349B2 (https=) 1990-05-18

Family

ID=15928162

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17170681A Granted JPS5872084A (ja) 1981-10-27 1981-10-27 電子時計

Country Status (1)

Country Link
JP (1) JPS5872084A (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999008375A1 (en) * 1997-08-11 1999-02-18 Seiko Epson Corporation Electronic device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5614976A (en) * 1979-07-17 1981-02-13 Citizen Watch Co Ltd Circuit for electronic watch
JPS5669576A (en) * 1979-11-12 1981-06-10 Seiko Epson Corp Electronic watch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999008375A1 (en) * 1997-08-11 1999-02-18 Seiko Epson Corporation Electronic device

Also Published As

Publication number Publication date
JPS5872084A (ja) 1983-04-28

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