CH643426B - Verfahren zum bestimmen der rotorstellung in einer analog anzeigenden elektrischen uhr und eine analog anzeigende elektronische uhr. - Google Patents

Verfahren zum bestimmen der rotorstellung in einer analog anzeigenden elektrischen uhr und eine analog anzeigende elektronische uhr.

Info

Publication number
CH643426B
CH643426B CH248782A CH248782A CH643426B CH 643426 B CH643426 B CH 643426B CH 248782 A CH248782 A CH 248782A CH 248782 A CH248782 A CH 248782A CH 643426 B CH643426 B CH 643426B
Authority
CH
Switzerland
Prior art keywords
detection
clock
path
analog displaying
coil
Prior art date
Application number
CH248782A
Other languages
German (de)
English (en)
Other versions
CH643426GA3 (cs
Inventor
Kitano Masuo
Sakamoto Kenji
Ito Jiro
Original Assignee
Suwa Seikosha Kk
Shimauchi Seiki 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 of CH643426B publication Critical patent/CH643426B/de
Priority claimed from JP6179081A external-priority patent/JPS57175977A/ja
Priority claimed from JP56185849A external-priority patent/JPS5886480A/ja
Application filed by Suwa Seikosha Kk, Shimauchi Seiki Kk filed Critical Suwa Seikosha Kk
Publication of CH643426GA3 publication Critical patent/CH643426GA3/de

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)
  • Control Of Stepping Motors (AREA)
  • Electromechanical Clocks (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
CH248782A 1981-04-23 1982-04-23 Verfahren zum bestimmen der rotorstellung in einer analog anzeigenden elektrischen uhr und eine analog anzeigende elektronische uhr. CH643426B (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP6179081A JPS57175977A (en) 1981-04-23 1981-04-23 Analogue electronic watch
JP56185849A JPS5886480A (ja) 1981-11-19 1981-11-19 アナログ電子時計

Publications (2)

Publication Number Publication Date
CH643426B true CH643426B (de)
CH643426GA3 CH643426GA3 (cs) 1984-06-15

Family

ID=26402870

Family Applications (1)

Application Number Title Priority Date Filing Date
CH248782A CH643426B (de) 1981-04-23 1982-04-23 Verfahren zum bestimmen der rotorstellung in einer analog anzeigenden elektrischen uhr und eine analog anzeigende elektronische uhr.

Country Status (5)

Country Link
CH (1) CH643426B (cs)
DE (1) DE3214543A1 (cs)
GB (1) GB2101367B (cs)
HK (1) HK10387A (cs)
SG (1) SG53286G (cs)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0679967B1 (en) * 1993-01-18 1998-09-30 Seiko Instruments Inc. Electronic timepiece
JP3162652B2 (ja) * 1997-04-25 2001-05-08 セイコーインスツルメンツ株式会社 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
US11233477B2 (en) 2018-06-07 2022-01-25 Ab Mikroelektronik Gesellschaft Mit Beschraenkter Haftung Method and system for controlling an electric motor and detecting a stall condition

Family Cites Families (4)

* 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
JPS53132386A (en) * 1977-04-23 1978-11-18 Seiko Instr & Electronics Ltd Electronic watch
JPS53132381A (en) * 1977-04-23 1978-11-18 Seiko Instr & Electronics Ltd Electronic watch
JPS5643575A (en) * 1979-09-18 1981-04-22 Seiko Instr & Electronics Ltd Electronic clock

Also Published As

Publication number Publication date
SG53286G (en) 1988-02-19
DE3214543A1 (de) 1982-11-11
GB2101367B (en) 1984-09-05
GB2101367A (en) 1983-01-12
DE3214543C2 (cs) 1987-12-03
HK10387A (en) 1987-02-06
CH643426GA3 (cs) 1984-06-15

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