JPS55128186A - Electronic watch - Google Patents
Electronic watchInfo
- Publication number
- JPS55128186A JPS55128186A JP3549979A JP3549979A JPS55128186A JP S55128186 A JPS55128186 A JP S55128186A JP 3549979 A JP3549979 A JP 3549979A JP 3549979 A JP3549979 A JP 3549979A JP S55128186 A JPS55128186 A JP S55128186A
- Authority
- JP
- Japan
- Prior art keywords
- trimming
- frequency
- oscillator
- shifted
- peak temperature
- 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
Landscapes
- Oscillators With Electromechanical Resonators (AREA)
- Electric Clocks (AREA)
Abstract
PURPOSE: To facilitate the highly accurate trimming by allowing any one of oscillators to actuate automatic trimming of the other corresponding to the frequency shifted by a certain value from that generated from the first one following the trimming thereof.
CONSTITUTION: This electronic watch is equipped with oscillators having a peak temperature difference ΔT and parabolic temperature characteristics A and B. The output of the oscillator 1 higher in the oscillation frequency is shaped 3 in the waveform to make the watch drive signal. The oscillator 2 performs a digital trimming with a digital trimming circuit 5 corresponding to the frequency shifted by a certain value determined by the peak temperature ΔT and the coefficient of parabolic temperature shifted from the frequency generated at the trimming of the oscillator 1. Accordingly, the trimming of the oscillator 2 is possible corresponding to the frequency at the peak temperature without changing the frequency thereof.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3549979A JPS55128186A (en) | 1979-03-28 | 1979-03-28 | Electronic watch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3549979A JPS55128186A (en) | 1979-03-28 | 1979-03-28 | Electronic watch |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55128186A true JPS55128186A (en) | 1980-10-03 |
Family
ID=12443437
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3549979A Pending JPS55128186A (en) | 1979-03-28 | 1979-03-28 | Electronic watch |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55128186A (en) |
-
1979
- 1979-03-28 JP JP3549979A patent/JPS55128186A/en active Pending
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