GB1587010A - Electronic timepiece - Google Patents

Electronic timepiece Download PDF

Info

Publication number
GB1587010A
GB1587010A GB26070/78A GB2607078A GB1587010A GB 1587010 A GB1587010 A GB 1587010A GB 26070/78 A GB26070/78 A GB 26070/78A GB 2607078 A GB2607078 A GB 2607078A GB 1587010 A GB1587010 A GB 1587010A
Authority
GB
United Kingdom
Prior art keywords
circuit
rotor
pulse
signal
detecting
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
Application number
GB26070/78A
Other languages
English (en)
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 GB1587010A publication Critical patent/GB1587010A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G5/00—Setting, i.e. correcting or changing, the time-indication
    • 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
    • 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)
  • Electric Clocks (AREA)
GB26070/78A 1977-06-27 1978-05-31 Electronic timepiece Expired GB1587010A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52076813A JPS6059551B2 (ja) 1977-06-27 1977-06-27 電子時計

Publications (1)

Publication Number Publication Date
GB1587010A true GB1587010A (en) 1981-03-25

Family

ID=13616101

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26070/78A Expired GB1587010A (en) 1977-06-27 1978-05-31 Electronic timepiece

Country Status (5)

Country Link
JP (1) JPS6059551B2 (enrdf_load_stackoverflow)
CH (1) CH631314GA3 (enrdf_load_stackoverflow)
DE (1) DE2828198C2 (enrdf_load_stackoverflow)
FR (1) FR2396342A1 (enrdf_load_stackoverflow)
GB (1) GB1587010A (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS597951B2 (ja) * 1978-02-13 1984-02-21 セイコーエプソン株式会社 時計
JPS57137873A (en) * 1981-02-19 1982-08-25 Seiko Epson Corp Analogue electronic watch
JPS5910875A (ja) * 1982-07-09 1984-01-20 Seiko Epson Corp 電子時計

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2200477C3 (de) * 1972-01-05 1983-11-17 Citizen Watch Co., Ltd., Tokyo Elektronische Analoguhr

Also Published As

Publication number Publication date
DE2828198C2 (de) 1986-10-16
FR2396342B1 (enrdf_load_stackoverflow) 1984-06-15
DE2828198A1 (de) 1979-01-04
CH631314GA3 (en) 1982-08-13
CH631314B (fr)
FR2396342A1 (fr) 1979-01-26
JPS6059551B2 (ja) 1985-12-25
JPS5410774A (en) 1979-01-26

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years

Effective date: 19980530