JPS53132385A - Electronic watch - Google Patents

Electronic watch

Info

Publication number
JPS53132385A
JPS53132385A JP4709577A JP4709577A JPS53132385A JP S53132385 A JPS53132385 A JP S53132385A JP 4709577 A JP4709577 A JP 4709577A JP 4709577 A JP4709577 A JP 4709577A JP S53132385 A JPS53132385 A JP S53132385A
Authority
JP
Japan
Prior art keywords
electronic watch
hands
unable
judged
run
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
JP4709577A
Other languages
English (en)
Other versions
JPS6115382B2 (ja
Inventor
Masaharu Shida
Akira Torisawa
Jun Ueda
Masaaki Bandai
Katsuhiko Sato
Kazuhiro Asano
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 JP4709577A priority Critical patent/JPS53132385A/ja
Priority to GB15440/78A priority patent/GB1592897A/en
Priority to FR7811529A priority patent/FR2388326A1/fr
Priority to US05/898,396 priority patent/US4271496A/en
Priority to CH435678A priority patent/CH632124B/fr
Priority to DE19782817596 priority patent/DE2817596A1/de
Publication of JPS53132385A publication Critical patent/JPS53132385A/ja
Publication of JPS6115382B2 publication Critical patent/JPS6115382B2/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)
  • Electric Clocks (AREA)
JP4709577A 1977-04-23 1977-04-23 Electronic watch Granted JPS53132385A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP4709577A JPS53132385A (en) 1977-04-23 1977-04-23 Electronic watch
GB15440/78A GB1592897A (en) 1977-04-23 1978-04-19 Electronic timepieces having stepping motor-driven analogue time displays
FR7811529A FR2388326A1 (fr) 1977-04-23 1978-04-19 Dispositif de detection des conditions de rotation du moteur d'une montre electronique
US05/898,396 US4271496A (en) 1977-04-23 1978-04-20 Electronic watch
CH435678A CH632124B (fr) 1977-04-23 1978-04-21 Piece d'horlogerie electronique.
DE19782817596 DE2817596A1 (de) 1977-04-23 1978-04-21 Elektronische uhr

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4709577A JPS53132385A (en) 1977-04-23 1977-04-23 Electronic watch

Publications (2)

Publication Number Publication Date
JPS53132385A true JPS53132385A (en) 1978-11-18
JPS6115382B2 JPS6115382B2 (ja) 1986-04-23

Family

ID=12765617

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4709577A Granted JPS53132385A (en) 1977-04-23 1977-04-23 Electronic watch

Country Status (6)

Country Link
US (1) US4271496A (ja)
JP (1) JPS53132385A (ja)
CH (1) CH632124B (ja)
DE (1) DE2817596A1 (ja)
FR (1) FR2388326A1 (ja)
GB (1) GB1592897A (ja)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53132382A (en) * 1977-04-23 1978-11-18 Seiko Instr & Electronics Ltd Electronic watch
JPS5921493B2 (ja) * 1978-09-12 1984-05-21 セイコーインスツルメンツ株式会社 時計の輪列負荷測定器
FR2459579A1 (fr) * 1979-06-21 1981-01-09 Suisse Horlogerie Detecteur d'avance d'un moteur pas a pas
JPS56164984A (en) * 1980-05-23 1981-12-18 Seiko Instr & Electronics Ltd Electronic watch
CH644983GA3 (ja) * 1981-03-31 1984-09-14
JP4236956B2 (ja) * 2003-02-24 2009-03-11 セイコーインスツル株式会社 ステップモータ制御装置及び電子時計
JP4343549B2 (ja) * 2003-02-24 2009-10-14 セイコーインスツル株式会社 ステップモータ制御装置及び電子時計

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3830052A (en) * 1972-07-10 1974-08-20 Motorola Inc Digital power control circuit for an electric wrist watch
JPS5542356B2 (ja) * 1972-12-22 1980-10-30
JPS6024680B2 (ja) * 1973-03-07 1985-06-14 セイコーインスツルメンツ株式会社 時計用ステツプモ−タの駆動回路
JPS53145Y2 (ja) * 1973-12-14 1978-01-06
US3998043A (en) * 1973-12-26 1976-12-21 Citizen Watch Co., Ltd. Electric timepiece for displaying the operating condition thereof
US3896363A (en) * 1974-03-18 1975-07-22 Cincinnati Milacron Inc Feedback circuit for detecting the failure of a stepping motor to respond to the control circuit
JPS5627835B2 (ja) * 1974-03-27 1981-06-27
JPS5175482A (en) * 1974-12-25 1976-06-30 Seiko Instr & Electronics Denshidokeini okeru denchijumyohyojisochi
US4032827A (en) * 1976-03-15 1977-06-28 Timex Corporation Driver circuit arrangement for a stepping motor
JPS53114467A (en) * 1977-03-16 1978-10-05 Seiko Instr & Electronics Ltd Electronic watch

Also Published As

Publication number Publication date
CH632124GA3 (ja) 1982-09-30
DE2817596A1 (de) 1978-10-26
JPS6115382B2 (ja) 1986-04-23
FR2388326B1 (ja) 1983-04-22
CH632124B (fr)
FR2388326A1 (fr) 1978-11-17
US4271496A (en) 1981-06-02
GB1592897A (en) 1981-07-08

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