JPS5477162A - Electronic watch - Google Patents

Electronic watch

Info

Publication number
JPS5477162A
JPS5477162A JP14464477A JP14464477A JPS5477162A JP S5477162 A JPS5477162 A JP S5477162A JP 14464477 A JP14464477 A JP 14464477A JP 14464477 A JP14464477 A JP 14464477A JP S5477162 A JPS5477162 A JP S5477162A
Authority
JP
Japan
Prior art keywords
pulses
width
drive pulses
drive
normal
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.)
Granted
Application number
JP14464477A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6115384B2 (en, 2012
Inventor
Masaharu Shida
Makoto Ueda
Akira Torisawa
Shuji Otawa
Masaaki Bandai
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 JP14464477A priority Critical patent/JPS5477162A/ja
Publication of JPS5477162A publication Critical patent/JPS5477162A/ja
Publication of JPS6115384B2 publication Critical patent/JPS6115384B2/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)
JP14464477A 1977-12-02 1977-12-02 Electronic watch Granted JPS5477162A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14464477A JPS5477162A (en) 1977-12-02 1977-12-02 Electronic watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14464477A JPS5477162A (en) 1977-12-02 1977-12-02 Electronic watch

Publications (2)

Publication Number Publication Date
JPS5477162A true JPS5477162A (en) 1979-06-20
JPS6115384B2 JPS6115384B2 (en, 2012) 1986-04-23

Family

ID=15366852

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14464477A Granted JPS5477162A (en) 1977-12-02 1977-12-02 Electronic watch

Country Status (1)

Country Link
JP (1) JPS5477162A (en, 2012)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5536792A (en) * 1978-06-20 1980-03-14 Ebauches Sa Electronic timepiece
JPS5739375A (en) * 1980-08-20 1982-03-04 Seiko Instr & Electronics Ltd Electronic timepiece
JPS57136184A (en) * 1981-02-17 1982-08-23 Seiko Epson Corp Analogue electronic watch
US4912689A (en) * 1988-05-07 1990-03-27 Seiko Epson Corporation Compensating circuitry for an electronic watch
JP2019152612A (ja) * 2018-03-06 2019-09-12 セイコーインスツル株式会社 時計用モータの状態検出回路、時計、および時計用モータの状態検出方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0191864U (en, 2012) * 1987-12-05 1989-06-16

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5536792A (en) * 1978-06-20 1980-03-14 Ebauches Sa Electronic timepiece
JPS5739375A (en) * 1980-08-20 1982-03-04 Seiko Instr & Electronics Ltd Electronic timepiece
JPS57136184A (en) * 1981-02-17 1982-08-23 Seiko Epson Corp Analogue electronic watch
US4912689A (en) * 1988-05-07 1990-03-27 Seiko Epson Corporation Compensating circuitry for an electronic watch
JP2019152612A (ja) * 2018-03-06 2019-09-12 セイコーインスツル株式会社 時計用モータの状態検出回路、時計、および時計用モータの状態検出方法

Also Published As

Publication number Publication date
JPS6115384B2 (en, 2012) 1986-04-23

Similar Documents

Publication Publication Date Title
JPS5477162A (en) Electronic watch
JPS53132383A (en) Electronic watch circuit
JPS5385467A (en) Electronic wristwatch
JPS5213367A (en) Electronic clock
FR2441314A1 (fr) Installation de cloture electrique
JPS5217758A (en) Pulse generator circuit
JPS5244080A (en) Discharge lamp lighting device
JPS5639937A (en) Electronically controlled automatic light-out device for lamp
JPS52110665A (en) Circuit for electronic clock
JPS55114018A (en) Correctable delay unit
JPS51120129A (en) Electronic tabulator
JPS5570773A (en) Electronic watch
JPS5384782A (en) Electronic wristwatch
JPS5252390A (en) Driving circuit for electrochromic display cells
JPS5384769A (en) Electronic wristwatch
JPS57203120A (en) Electronic machinery
JPS5734223A (en) Power supply circuit
JPS5382481A (en) Electronic wristwatch
JPS5394981A (en) Electronic wristwatch
JPS5393319A (en) Clock step motor pulse control
JPS5332663A (en) Numeric setting unit
JPS5477166A (en) Electronic watch
JPS5248373A (en) Coil block with automatic electricity economizing system
JPS5371869A (en) Electronic wristwatch
JPS5530678A (en) Power source supply circuit for electronic watch