HK71990A - Improvements in or relating to stepping motor driven electronic timepieces - Google Patents

Improvements in or relating to stepping motor driven electronic timepieces

Info

Publication number
HK71990A
HK71990A HK719/90A HK71990A HK71990A HK 71990 A HK71990 A HK 71990A HK 719/90 A HK719/90 A HK 719/90A HK 71990 A HK71990 A HK 71990A HK 71990 A HK71990 A HK 71990A
Authority
HK
Hong Kong
Prior art keywords
relating
stepping motor
motor driven
driven electronic
electronic timepieces
Prior art date
Application number
HK719/90A
Other languages
English (en)
Inventor
Yuichi Inoue
Original Assignee
Seiko Instr 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 Instr Inc filed Critical Seiko Instr Inc
Publication of HK71990A publication Critical patent/HK71990A/xx

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P8/00—Arrangements for controlling dynamo-electric motors rotating step by step
    • H02P8/02—Arrangements for controlling dynamo-electric motors rotating step by step specially adapted for single-phase or bi-pole stepper motors, e.g. watch-motors, clock-motors
    • 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)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromechanical Clocks (AREA)
  • Control Of Stepping Motors (AREA)
HK719/90A 1984-10-16 1990-09-13 Improvements in or relating to stepping motor driven electronic timepieces HK71990A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59216581A JPH0681551B2 (ja) 1984-10-16 1984-10-16 ステップモ−タの回転検出方法

Publications (1)

Publication Number Publication Date
HK71990A true HK71990A (en) 1990-09-21

Family

ID=16690656

Family Applications (1)

Application Number Title Priority Date Filing Date
HK719/90A HK71990A (en) 1984-10-16 1990-09-13 Improvements in or relating to stepping motor driven electronic timepieces

Country Status (6)

Country Link
US (1) US4673857A (xx)
EP (1) EP0182490B1 (xx)
JP (1) JPH0681551B2 (xx)
DE (1) DE3564875D1 (xx)
HK (1) HK71990A (xx)
SG (1) SG62689G (xx)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0823245B2 (ja) * 1991-11-12 1996-03-06 小松ウオール工業株式会社 引戸装置
JP3365250B2 (ja) * 1997-04-28 2003-01-08 関西日本電気株式会社 ステッピングモータ駆動装置
JPH11311651A (ja) * 1998-04-28 1999-11-09 Mikuni Corp 電磁コイル動作装置の故障判別装置
JP4652610B2 (ja) * 2001-05-30 2011-03-16 セイコーインスツル株式会社 ステップモータの回転制御装置
DE10225610B4 (de) * 2002-06-07 2006-12-28 Trinamic Motion Control Gmbh & Co. Kg Verfahren und Schaltungsanordnung zum Betreiben eines Schrittmotors
JP2015061467A (ja) * 2013-09-20 2015-03-30 カシオ計算機株式会社 ステッピングモータ及び時計
JP7545308B2 (ja) * 2020-12-08 2024-09-04 シチズン時計株式会社 電子時計

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5477164A (en) * 1977-12-02 1979-06-20 Seiko Instr & Electronics Ltd Electronic watch
JPS5515054A (en) * 1978-07-19 1980-02-01 Seiko Instr & Electronics Ltd Electronic watch
US4321521A (en) * 1978-12-25 1982-03-23 Kabushiki Kaisha Daini Seikosha Detection device of electronic timepiece
JPS55147381A (en) * 1979-05-04 1980-11-17 Seiko Instr & Electronics Ltd Detector for electronic watch
CH644983GA3 (xx) * 1981-03-31 1984-09-14
FR2529032A1 (fr) * 1982-06-21 1983-12-23 Omega Brandt & Freres Sa Louis Procede d'alimentation d'un moteur pas a pas monophase pour piece d'horlogerie

Also Published As

Publication number Publication date
JPH0681551B2 (ja) 1994-10-12
EP0182490A1 (en) 1986-05-28
DE3564875D1 (en) 1988-10-13
SG62689G (en) 1990-01-26
US4673857A (en) 1987-06-16
EP0182490B1 (en) 1988-09-07
JPS6194598A (ja) 1986-05-13

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)
ARR Application refused for restoration of standard patent

Effective date: 20060704