JPS57211094A - Electronic watch - Google Patents

Electronic watch

Info

Publication number
JPS57211094A
JPS57211094A JP9574681A JP9574681A JPS57211094A JP S57211094 A JPS57211094 A JP S57211094A JP 9574681 A JP9574681 A JP 9574681A JP 9574681 A JP9574681 A JP 9574681A JP S57211094 A JPS57211094 A JP S57211094A
Authority
JP
Japan
Prior art keywords
temperature
circuit
pulse
compensation
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
JP9574681A
Other languages
Japanese (ja)
Inventor
Kenji Kamiya
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.)
RIKOO TOKEI KK
Ricoh Elemex Corp
Original Assignee
RIKOO TOKEI KK
Ricoh Elemex Corp
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 RIKOO TOKEI KK, Ricoh Elemex Corp filed Critical RIKOO TOKEI KK
Priority to JP9574681A priority Critical patent/JPS57211094A/en
Publication of JPS57211094A publication Critical patent/JPS57211094A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G13/00—Producing acoustic time signals
    • G04G13/02—Producing acoustic time signals at preselected times, e.g. alarm clocks
    • G04G13/025—Producing acoustic time signals at preselected times, e.g. alarm clocks acting only at one preselected time

Landscapes

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

Abstract

PURPOSE:To facilitate an IC conversion with the temperature compensation of high accuracy, by performing the temperature compensation for the oscillating frequency of a reference oscillation source with use of a frequency that varies according to the temperature, voltage, etc. CONSTITUTION:The output of a quartz oscillating circuit 10 is divided 11 and 13 and then fed to a counter 14 in the form of a pulse having the 1-second cycle. A timer 19 which is turned on and off with a certain time period is acturated by the counter 14. Then a temperature detecting circuit 17 starts its operation to deliver the change degree of temperature of a reference temperature in the form of a pulse train signal. This pulse train signal given from the circuit 17 is led into an arithmetic circuit 18 to calculate the pulses of a number proportional to the temperature change of the resonance frequency of a quartz oscillator in the circuit 10. The pulse transmitted from the circuit 18 is put into a pulse interrupting circuit 12 for the compensation of temperature.
JP9574681A 1981-06-19 1981-06-19 Electronic watch Pending JPS57211094A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9574681A JPS57211094A (en) 1981-06-19 1981-06-19 Electronic watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9574681A JPS57211094A (en) 1981-06-19 1981-06-19 Electronic watch

Publications (1)

Publication Number Publication Date
JPS57211094A true JPS57211094A (en) 1982-12-24

Family

ID=14146051

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9574681A Pending JPS57211094A (en) 1981-06-19 1981-06-19 Electronic watch

Country Status (1)

Country Link
JP (1) JPS57211094A (en)

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