CH648179GA3 - - Google Patents
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- Publication number
- CH648179GA3 CH648179GA3 CH286682A CH286682A CH648179GA3 CH 648179G A3 CH648179G A3 CH 648179GA3 CH 286682 A CH286682 A CH 286682A CH 286682 A CH286682 A CH 286682A CH 648179G A3 CH648179G A3 CH 648179GA3
- Authority
- CH
- Switzerland
- Prior art keywords
- rotor
- pulse
- rotated
- motor
- width
- 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)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6882581A JPS57182680A (en) | 1981-05-07 | 1981-05-07 | Analog electronic clock |
JP1864482A JPS58140664A (ja) | 1982-02-08 | 1982-02-08 | アナログ電子時計 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH648179GA3 true CH648179GA3 (ja) | 1985-03-15 |
Family
ID=26355353
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH286682A CH648179GA3 (ja) | 1981-05-07 | 1982-05-07 |
Country Status (6)
Country | Link |
---|---|
US (1) | US4477196A (ja) |
CH (1) | CH648179GA3 (ja) |
DE (1) | DE3217207C2 (ja) |
GB (1) | GB2101368B (ja) |
HK (1) | HK73986A (ja) |
SG (1) | SG53386G (ja) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1056243C (zh) * | 1993-01-18 | 2000-09-06 | 精工电子工业株式会社 | 电子时计 |
JPH07147798A (ja) * | 1993-11-25 | 1995-06-06 | Canon Inc | ステッピングモータ制御装置 |
US5627444A (en) * | 1995-05-30 | 1997-05-06 | General Motors Corporation | Switched reluctance motor control |
JP3541601B2 (ja) * | 1997-02-07 | 2004-07-14 | セイコーエプソン株式会社 | ステッピングモーターの制御装置、その制御方法および計時装置 |
US6046561A (en) * | 1998-11-23 | 2000-04-04 | General Motors Corporation | Commutation control method for a switched reluctance machine |
DE10159010B4 (de) * | 2001-11-30 | 2011-11-10 | Legrand-Bticino Gmbh | Elektromechanische Schaltuhr |
DE10314426B4 (de) * | 2003-03-31 | 2006-09-14 | Junghans Uhren Gmbh | Verfahren zur Dreherkennung eines wenigstens einen Zeiger einer Uhr antreibenden Schrittmotors |
JP2010154673A (ja) * | 2008-12-25 | 2010-07-08 | Seiko Instruments Inc | ステッピングモータ制御回路及びアナログ電子時計 |
US9612579B2 (en) * | 2012-07-23 | 2017-04-04 | Citizen Watch Co., Ltd. | Electronic clock |
JP6162513B2 (ja) * | 2012-09-07 | 2017-07-12 | セイコーインスツル株式会社 | ステッピングモータ制御回路、ムーブメント及びアナログ電子時計 |
CN110178105B (zh) * | 2017-01-25 | 2022-04-19 | 微软技术许可有限责任公司 | 用于在输入设备的旋转控制组件中使用的步进电机 |
JP2019047559A (ja) * | 2017-08-30 | 2019-03-22 | カシオ計算機株式会社 | 回転制御装置、電子時計および回転制御方法 |
JP7219094B2 (ja) * | 2019-01-11 | 2023-02-07 | セイコーインスツル株式会社 | アナログ電子時計、ステッピングモータ制御装置及びアナログ電子時計の制御方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5240712A (en) * | 1975-09-27 | 1977-03-29 | Citizen Watch Co Ltd | Pulse motor for electronic clocks |
US4055785A (en) * | 1976-01-12 | 1977-10-25 | Fumio Nakajima | Stepping motor for electronic timepiece |
JPS53132382A (en) * | 1977-04-23 | 1978-11-18 | Seiko Instr & Electronics Ltd | Electronic watch |
JPS53136870A (en) * | 1977-04-23 | 1978-11-29 | Seiko Instr & Electronics Ltd | Electronic watch |
JPS53132380A (en) * | 1977-04-23 | 1978-11-18 | Seiko Instr & Electronics Ltd | Electronic watch |
-
1982
- 1982-05-06 GB GB08213117A patent/GB2101368B/en not_active Expired
- 1982-05-06 US US06/375,649 patent/US4477196A/en not_active Expired - Lifetime
- 1982-05-07 CH CH286682A patent/CH648179GA3/fr unknown
- 1982-05-07 DE DE3217207A patent/DE3217207C2/de not_active Expired
-
1986
- 1986-06-12 SG SG533/86A patent/SG53386G/en unknown
- 1986-10-02 HK HK739/86A patent/HK73986A/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
SG53386G (en) | 1988-01-15 |
GB2101368B (en) | 1985-02-27 |
GB2101368A (en) | 1983-01-12 |
DE3217207A1 (de) | 1982-11-25 |
DE3217207C2 (de) | 1985-12-12 |
HK73986A (en) | 1986-10-10 |
US4477196A (en) | 1984-10-16 |
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