HK1148357A1 - Electronic timepiece - Google Patents

Electronic timepiece

Info

Publication number
HK1148357A1
HK1148357A1 HK11102256.2A HK11102256A HK1148357A1 HK 1148357 A1 HK1148357 A1 HK 1148357A1 HK 11102256 A HK11102256 A HK 11102256A HK 1148357 A1 HK1148357 A1 HK 1148357A1
Authority
HK
Hong Kong
Prior art keywords
electronic timepiece
timepiece
electronic
Prior art date
Application number
HK11102256.2A
Other languages
English (en)
Inventor
Koichi Sato
Takuji Ike
Takayuki Uchida
Original Assignee
Citizen Watch Co Ltd
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 Citizen Watch Co Ltd filed Critical Citizen Watch Co Ltd
Publication of HK1148357A1 publication Critical patent/HK1148357A1/xx

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)
HK11102256.2A 2008-03-07 2011-03-07 Electronic timepiece HK1148357A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2008057833 2008-03-07
PCT/JP2009/054318 WO2009110602A1 (ja) 2008-03-07 2009-03-06 電子時計

Publications (1)

Publication Number Publication Date
HK1148357A1 true HK1148357A1 (en) 2011-09-02

Family

ID=41056151

Family Applications (1)

Application Number Title Priority Date Filing Date
HK11102256.2A HK1148357A1 (en) 2008-03-07 2011-03-07 Electronic timepiece

Country Status (6)

Country Link
US (1) US8251575B2 (zh)
EP (1) EP2249214B1 (zh)
JP (1) JP5209041B2 (zh)
CN (1) CN101971108B (zh)
HK (1) HK1148357A1 (zh)
WO (1) WO2009110602A1 (zh)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5647613B2 (ja) * 2009-10-07 2015-01-07 シチズンホールディングス株式会社 電子時計
JP2012233858A (ja) * 2011-05-09 2012-11-29 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
JP5630510B2 (ja) * 2013-02-05 2014-11-26 カシオ計算機株式会社 アナログ電子時計
JP6356679B2 (ja) * 2013-08-29 2018-07-11 シチズン時計株式会社 電子時計
EP2993534A1 (fr) * 2014-09-05 2016-03-09 EM Microelectronic-Marin SA Circuit détecteur de chocs
EP3171231B1 (fr) * 2015-11-18 2018-06-06 ETA SA Manufacture Horlogère Suisse Circuit detecteur de chocs et son procede de fonctionnement
CN106997169B (zh) * 2016-01-25 2021-02-19 精工电子有限公司 模拟电子钟表和模拟电子钟表的控制方法
JP6787734B2 (ja) * 2016-01-25 2020-11-18 セイコーインスツル株式会社 アナログ電子時計およびアナログ電子時計の制御方法
US11372374B2 (en) * 2017-10-20 2022-06-28 Seiko Instruments Inc. Timepiece movement, timepiece, and reference position determination method of indicating hand of timepiece
JP7063314B2 (ja) * 2019-11-20 2022-05-09 カシオ計算機株式会社 指針装置、電子時計、指針装置の制御方法、及びプログラム
JP7192750B2 (ja) * 2019-11-26 2022-12-20 カシオ計算機株式会社 指針駆動装置、電子時計、指針駆動方法およびプログラム

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2937838C2 (de) * 1979-09-19 1986-08-28 Braun Ag, 6000 Frankfurt Verfahren und Anordnung zur Regelung von Drehzahl und Phasenlage bei Synchronmotoren
JPS56110073A (en) 1980-02-05 1981-09-01 Citizen Watch Co Ltd Electronic watch
US5347603A (en) 1993-06-14 1994-09-13 Molex Incorporated Right angle cable strain relief
US5889734A (en) * 1994-04-06 1999-03-30 Citizen Watch Co., Ltd. Electronic timepiece
EP0764894B1 (en) * 1995-09-20 2002-05-29 Citizen Watch Co., Ltd. Electronic watch
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
JP4173584B2 (ja) 1998-08-31 2008-10-29 シチズンホールディングス株式会社 アナログ電子時計
WO2001055800A1 (fr) * 2000-01-24 2001-08-02 Seiko Instruments Inc. Piece d'horlogerie electronique comprenant des aiguilles indicatrices
JP4751573B2 (ja) * 2003-12-12 2011-08-17 シチズンホールディングス株式会社 アナログ電子時計
JP2006230090A (ja) 2005-02-17 2006-08-31 Seiko Instruments Inc モータ駆動装置及びアナログ電子時計
WO2007102412A1 (ja) * 2006-03-03 2007-09-13 Citizen Holdings Co., Ltd. アナログ電子時計

Also Published As

Publication number Publication date
US20110013494A1 (en) 2011-01-20
WO2009110602A1 (ja) 2009-09-11
CN101971108A (zh) 2011-02-09
JP5209041B2 (ja) 2013-06-12
EP2249214A4 (en) 2011-09-14
JPWO2009110602A1 (ja) 2011-07-14
EP2249214B1 (en) 2013-02-20
CN101971108B (zh) 2012-07-25
EP2249214A1 (en) 2010-11-10
US8251575B2 (en) 2012-08-28

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