JPS51149755A - Electronic clock - Google Patents

Electronic clock

Info

Publication number
JPS51149755A
JPS51149755A JP50073496A JP7349675A JPS51149755A JP S51149755 A JPS51149755 A JP S51149755A JP 50073496 A JP50073496 A JP 50073496A JP 7349675 A JP7349675 A JP 7349675A JP S51149755 A JPS51149755 A JP S51149755A
Authority
JP
Japan
Prior art keywords
electronic clock
stably
signal generation
reference time
oscillation frequency
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
JP50073496A
Other languages
Japanese (ja)
Inventor
Yukio Hashimoto
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.)
Citizen Watch Co Ltd
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
Priority to JP50073496A priority Critical patent/JPS51149755A/en
Publication of JPS51149755A publication Critical patent/JPS51149755A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
    • H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
    • H03B5/36—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being semiconductor device

Landscapes

  • Electric Clocks (AREA)
  • Oscillators With Electromechanical Resonators (AREA)

Abstract

PURPOSE:To obtain an electronic clock which has a temperature compensation function with which the oscillation frequency of the crystal oscillator used as reference time signal generation source can stably be maintained even when the ambient temperature varies.
JP50073496A 1975-06-17 1975-06-17 Electronic clock Pending JPS51149755A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50073496A JPS51149755A (en) 1975-06-17 1975-06-17 Electronic clock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50073496A JPS51149755A (en) 1975-06-17 1975-06-17 Electronic clock

Publications (1)

Publication Number Publication Date
JPS51149755A true JPS51149755A (en) 1976-12-22

Family

ID=13519911

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50073496A Pending JPS51149755A (en) 1975-06-17 1975-06-17 Electronic clock

Country Status (1)

Country Link
JP (1) JPS51149755A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5652908A (en) * 1979-10-05 1981-05-12 Seikosha Co Ltd Oscillation frequency adjusting device
JPS57199304A (en) * 1981-06-02 1982-12-07 Seikosha Co Ltd Quartz oscillating circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5652908A (en) * 1979-10-05 1981-05-12 Seikosha Co Ltd Oscillation frequency adjusting device
JPS57199304A (en) * 1981-06-02 1982-12-07 Seikosha Co Ltd Quartz oscillating circuit

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