JPS5313470A - Electronic timepiece - Google Patents

Electronic timepiece

Info

Publication number
JPS5313470A
JPS5313470A JP7757976A JP7757976A JPS5313470A JP S5313470 A JPS5313470 A JP S5313470A JP 7757976 A JP7757976 A JP 7757976A JP 7757976 A JP7757976 A JP 7757976A JP S5313470 A JPS5313470 A JP S5313470A
Authority
JP
Japan
Prior art keywords
oscillators
piezo
electronic timepiece
temperature characteristic
timepiece
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.)
Pending
Application number
JP7757976A
Other languages
Japanese (ja)
Inventor
Yoshikazu Akaha
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 Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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 Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP7757976A priority Critical patent/JPS5313470A/en
Priority to GB48149/78A priority patent/GB1570660A/en
Priority to GB26651/77A priority patent/GB1570659A/en
Priority to CH793677A priority patent/CH617314B/en
Priority to US05/811,808 priority patent/US4159622A/en
Publication of JPS5313470A publication Critical patent/JPS5313470A/en
Priority to HK530/81A priority patent/HK53081A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F5/00—Apparatus for producing preselected time intervals for use as timing standards
    • G04F5/04—Apparatus for producing preselected time intervals for use as timing standards using oscillators with electromechanical resonators producing electric oscillations or timing pulses
    • G04F5/06—Apparatus for producing preselected time intervals for use as timing standards using oscillators with electromechanical resonators producing electric oscillations or timing pulses using piezoelectric resonators

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Oscillators With Electromechanical Resonators (AREA)

Abstract

PURPOSE:To provide an electronic timepiece, comprising two piezo-oscillators and two variable capacitors connected respectively in series with said piezo-oscillators and co-operatively associated with each other, in which temperature characteristic of the piezo-oscillators is compensated by their own temperature characteristic, whereby accuracy of the timepiece can be improved and at the same time power consumption can be reduced.
JP7757976A 1976-06-30 1976-06-30 Electronic timepiece Pending JPS5313470A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP7757976A JPS5313470A (en) 1976-06-30 1976-06-30 Electronic timepiece
GB48149/78A GB1570660A (en) 1976-06-30 1977-06-24 Electronic timepiece
GB26651/77A GB1570659A (en) 1976-06-30 1977-06-24 Electronic timepiece
CH793677A CH617314B (en) 1976-06-30 1977-06-28 ELECTRONIC CLOCK.
US05/811,808 US4159622A (en) 1976-06-30 1977-06-30 Electronic timepiece having a main oscillator circuitry and secondary oscillator circuitry
HK530/81A HK53081A (en) 1976-06-30 1981-11-05 Electronic timepiece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7757976A JPS5313470A (en) 1976-06-30 1976-06-30 Electronic timepiece

Publications (1)

Publication Number Publication Date
JPS5313470A true JPS5313470A (en) 1978-02-07

Family

ID=13637889

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7757976A Pending JPS5313470A (en) 1976-06-30 1976-06-30 Electronic timepiece

Country Status (1)

Country Link
JP (1) JPS5313470A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5632809A (en) * 1979-08-28 1981-04-02 Seikosha Co Ltd Correcting unit for frequency
JPS574579A (en) * 1980-06-10 1982-01-11 Seiko Epson Corp Device for adjusting precision of time

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5632809A (en) * 1979-08-28 1981-04-02 Seikosha Co Ltd Correcting unit for frequency
JPS6131641B2 (en) * 1979-08-28 1986-07-22 Seikosha Kk
JPS574579A (en) * 1980-06-10 1982-01-11 Seiko Epson Corp Device for adjusting precision of time

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