JPS57211094A - Electronic watch - Google Patents
Electronic watchInfo
- 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
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.
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) |
-
1981
- 1981-06-19 JP JP9574681A patent/JPS57211094A/en active Pending
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