DE69831998D1 - Elektronisches Uhrwerk - Google Patents

Elektronisches Uhrwerk

Info

Publication number
DE69831998D1
DE69831998D1 DE69831998T DE69831998T DE69831998D1 DE 69831998 D1 DE69831998 D1 DE 69831998D1 DE 69831998 T DE69831998 T DE 69831998T DE 69831998 T DE69831998 T DE 69831998T DE 69831998 D1 DE69831998 D1 DE 69831998D1
Authority
DE
Germany
Prior art keywords
electronic clockwork
clockwork
electronic
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
DE69831998T
Other languages
English (en)
Other versions
DE69831998T2 (de
Inventor
Kenichi Nakajima
Takayuki Satodate
Akihiro Matouge
Akihiko Inada
Mitsuru Ishii
Yoshio Koyama
Shigeo Suzuki
Masayuki Kawata
Yuko Sasaki
Eriko Takakuwa
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
Priority claimed from JP10944597A external-priority patent/JP3165070B2/ja
Priority claimed from JP10086710A external-priority patent/JP3002969B2/ja
Application filed by Seiko Instruments Inc filed Critical Seiko Instruments Inc
Publication of DE69831998D1 publication Critical patent/DE69831998D1/de
Application granted granted Critical
Publication of DE69831998T2 publication Critical patent/DE69831998T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C17/00—Indicating the time optically by electric means
    • G04C17/005—Indicating the time optically by electric means by discs
    • G04C17/0058—Indicating the time optically by electric means by discs with date indication
    • G04C17/0066—Indicating the time optically by electric means by discs with date indication electromagnetically driven, e.g. intermittently
    • 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
    • G04C3/08—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically
    • G04C3/12—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by piezoelectric means; driven by magneto-strictive means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromechanical Clocks (AREA)
DE69831998T 1997-04-25 1998-04-27 Elektronisches Uhrwerk Expired - Fee Related DE69831998T2 (de)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
JP10944597A JP3165070B2 (ja) 1997-04-25 1997-04-25 カレンダ付電子時計
JP10944697 1997-04-25
JP10944597 1997-04-25
JP10944697 1997-04-25
JP1670198 1998-01-29
JP1670198 1998-01-29
JP8671098 1998-03-31
JP10086710A JP3002969B2 (ja) 1997-04-25 1998-03-31 電子時計

Publications (2)

Publication Number Publication Date
DE69831998D1 true DE69831998D1 (de) 2005-12-01
DE69831998T2 DE69831998T2 (de) 2006-04-20

Family

ID=27456622

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69831998T Expired - Fee Related DE69831998T2 (de) 1997-04-25 1998-04-27 Elektronisches Uhrwerk

Country Status (4)

Country Link
EP (1) EP0874292B1 (de)
CN (1) CN1132079C (de)
DE (1) DE69831998T2 (de)
HK (1) HK1019775A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2935182B1 (ja) * 1998-02-13 1999-08-16 セイコーインスツルメンツ株式会社 電子時計
EP2180383B1 (de) * 2008-10-24 2012-01-25 ETA SA Manufacture Horlogère Suisse Hilfsvorrichtung zur Positionshaltung einer Datumsanzeigescheibe für Uhrwerk
JP5573870B2 (ja) * 2012-03-12 2014-08-20 カシオ計算機株式会社 表示装置および電子時計
JP7205073B2 (ja) * 2018-04-23 2023-01-17 セイコーエプソン株式会社 電子時計

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3398245A (en) * 1966-09-13 1968-08-20 United Carr Inc Printed circuit switch
JPS5542356B2 (de) * 1972-12-22 1980-10-30
JPS5454077A (en) * 1977-10-06 1979-04-27 Seiko Instr & Electronics Ltd Calendar collecting device for analog electronic watch
JPS5658680A (en) * 1979-10-18 1981-05-21 Seikosha Co Ltd Time detection device
JPS6051478A (ja) * 1983-08-26 1985-03-22 Seiko Instr & Electronics Ltd 超音波モータ
JPS6066180A (ja) * 1983-09-21 1985-04-16 Seikosha Co Ltd 報時時計
GB2217914B (en) * 1988-04-23 1992-02-19 Proizv Ob Mi Chasovoi Z Switching device for electronic watch
CH685660B5 (fr) * 1992-09-09 1996-03-15 Asulab Sa Piece d'horlogerie pourvue de moyens d'entraînement formes par un moteur piezo-electrique.
CH688950B5 (fr) * 1995-08-22 1998-12-31 Ebauchesfabrik Eta Ag Dispositif de synchronisation d'un affichage analogique avec un compteur électronique dans une pièce d'horlogerie.

Also Published As

Publication number Publication date
CN1132079C (zh) 2003-12-24
CN1204790A (zh) 1999-01-13
EP0874292B1 (de) 2005-10-26
EP0874292A3 (de) 1999-03-03
HK1019775A1 (en) 2000-02-25
DE69831998T2 (de) 2006-04-20
EP0874292A2 (de) 1998-10-28

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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