CH643426GA3 - - Google Patents
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- Publication number
- CH643426GA3 CH643426GA3 CH248782A CH248782A CH643426GA3 CH 643426G A3 CH643426G A3 CH 643426GA3 CH 248782 A CH248782 A CH 248782A CH 248782 A CH248782 A CH 248782A CH 643426G A3 CH643426G A3 CH 643426GA3
- Authority
- CH
- Switzerland
- Prior art keywords
- detection
- path
- coil
- resistance
- shows
- Prior art date
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)
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 CH643426B (de) | |
CH643426GA3 true CH643426GA3 (de) | 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 (de) |
DE (1) | DE3214543A1 (de) |
GB (1) | GB2101367B (de) |
HK (1) | HK10387A (de) |
SG (1) | SG53286G (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19818775B4 (de) * | 1997-04-25 | 2015-09-24 | Seiko Instruments Inc. | Elektronische Uhr |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1994016365A1 (en) * | 1993-01-18 | 1994-07-21 | Seiko Instruments Inc. | Electronic timepiece |
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
JPS53132382A (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 |
-
1982
- 1982-04-20 DE DE19823214543 patent/DE3214543A1/de active Granted
- 1982-04-21 GB GB08211495A patent/GB2101367B/en not_active Expired
- 1982-04-23 CH CH248782A patent/CH643426B/de unknown
-
1986
- 1986-06-12 SG SG532/86A patent/SG53286G/en unknown
-
1987
- 1987-01-28 HK HK103/87A patent/HK10387A/xx not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19818775B4 (de) * | 1997-04-25 | 2015-09-24 | Seiko Instruments Inc. | Elektronische Uhr |
Also Published As
Publication number | Publication date |
---|---|
DE3214543A1 (de) | 1982-11-11 |
DE3214543C2 (de) | 1987-12-03 |
SG53286G (en) | 1988-02-19 |
GB2101367B (en) | 1984-09-05 |
CH643426B (de) | |
HK10387A (en) | 1987-02-06 |
GB2101367A (en) | 1983-01-12 |
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