DE69413668D1 - Zeitgeber - Google Patents

Zeitgeber

Info

Publication number
DE69413668D1
DE69413668D1 DE69413668T DE69413668T DE69413668D1 DE 69413668 D1 DE69413668 D1 DE 69413668D1 DE 69413668 T DE69413668 T DE 69413668T DE 69413668 T DE69413668 T DE 69413668T DE 69413668 D1 DE69413668 D1 DE 69413668D1
Authority
DE
Germany
Prior art keywords
timer
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.)
Expired - Fee Related
Application number
DE69413668T
Other languages
English (en)
Other versions
DE69413668T2 (de
Inventor
Akira Takakura
Jun Hirotomi
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
Publication of DE69413668D1 publication Critical patent/DE69413668D1/de
Application granted granted Critical
Publication of DE69413668T2 publication Critical patent/DE69413668T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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)
DE69413668T 1993-01-18 1994-01-12 Zeitgeber Expired - Fee Related DE69413668T2 (de)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
JP616393 1993-01-18
JP2431193 1993-02-12
JP4418293 1993-03-04
JP5111193 1993-03-11
JP6712793 1993-03-25
JP8766093 1993-04-14
JP24820493 1993-10-04
PCT/JP1994/000030 WO1994016365A1 (en) 1993-01-18 1994-01-12 Electronic timepiece

Publications (2)

Publication Number Publication Date
DE69413668D1 true DE69413668D1 (de) 1998-11-05
DE69413668T2 DE69413668T2 (de) 1999-04-15

Family

ID=27563345

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69413668T Expired - Fee Related DE69413668T2 (de) 1993-01-18 1994-01-12 Zeitgeber

Country Status (6)

Country Link
US (1) US5550795A (de)
EP (1) EP0679967B1 (de)
JP (1) JP3299756B2 (de)
CN (1) CN1056243C (de)
DE (1) DE69413668T2 (de)
WO (1) WO1994016365A1 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3508444B2 (ja) * 1997-02-07 2004-03-22 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
DE10314426B4 (de) * 2003-03-31 2006-09-14 Junghans Uhren Gmbh Verfahren zur Dreherkennung eines wenigstens einen Zeiger einer Uhr antreibenden Schrittmotors
WO2005119377A1 (ja) * 2004-06-04 2005-12-15 Seiko Instruments Inc. アナログ電子時計及びモータ制御回路
JP2006226927A (ja) * 2005-02-21 2006-08-31 Seiko Instruments Inc ステップモータ駆動装置及びアナログ電子時計
JP5363167B2 (ja) * 2008-05-29 2013-12-11 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及びアナログ電子時計
US8111033B2 (en) * 2008-06-17 2012-02-07 Seiko Instruments Inc. Stepping motor control circuit and analog electronic timepiece
JP2010145106A (ja) * 2008-12-16 2010-07-01 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
JP5363269B2 (ja) * 2008-12-25 2013-12-11 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及びアナログ電子時計
JP2010151641A (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
JP2011075463A (ja) * 2009-09-30 2011-04-14 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
JP2011101576A (ja) * 2009-10-06 2011-05-19 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
JP2011169650A (ja) * 2010-02-16 2011-09-01 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
CN108027585B (zh) * 2015-09-09 2020-10-23 西铁城时计株式会社 双线圈步进电机用驱动电路
JP2017163766A (ja) 2016-03-11 2017-09-14 カシオ計算機株式会社 ステッピングモータ駆動装置、ステッピングモータの駆動方法、ステッピングモータ駆動プログラム、及び電子時計
JP7242306B2 (ja) * 2019-01-11 2023-03-20 セイコーインスツル株式会社 時計及び時計用モータ制御方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5319944B2 (de) * 1971-09-25 1978-06-23
JPS5345575A (en) * 1976-10-06 1978-04-24 Seiko Epson Corp Electronic wristwatch
JPS5548682A (en) * 1978-10-04 1980-04-07 Seiko Instr & Electronics Ltd Measuring device for electronic watch
CH644983GA3 (de) * 1981-03-31 1984-09-14
DE3214543A1 (de) * 1981-04-23 1982-11-11 Kabushiki Kaisha Suwa Seikosha, Tokyo Elektronische analoguhr
JPS58140664A (ja) * 1982-02-08 1983-08-20 Seiko Epson Corp アナログ電子時計
US4477196A (en) * 1981-05-07 1984-10-16 Kabushiki Kaisha Suwa Seikosha Analog electronic timepiece
JPS5866089A (ja) * 1981-10-15 1983-04-20 Seikosha Co Ltd 電子時計
JP2506477Y2 (ja) * 1988-07-26 1996-08-07 セイコーエプソン株式会社 アナログ電子時計

Also Published As

Publication number Publication date
CN1119043A (zh) 1996-03-20
EP0679967A4 (de) 1997-02-26
DE69413668T2 (de) 1999-04-15
EP0679967B1 (de) 1998-09-30
JP3299756B2 (ja) 2002-07-08
EP0679967A1 (de) 1995-11-02
US5550795A (en) 1996-08-27
CN1056243C (zh) 2000-09-06
WO1994016365A1 (en) 1994-07-21

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee