JPS5571983A - Electronic watch - Google Patents
Electronic watchInfo
- Publication number
- JPS5571983A JPS5571983A JP14501578A JP14501578A JPS5571983A JP S5571983 A JPS5571983 A JP S5571983A JP 14501578 A JP14501578 A JP 14501578A JP 14501578 A JP14501578 A JP 14501578A JP S5571983 A JPS5571983 A JP S5571983A
- Authority
- JP
- Japan
- Prior art keywords
- power consumption
- frequency
- watch
- accuracy
- divider
- 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
- Electric Clocks (AREA)
Abstract
PURPOSE: To provide an electronic watch readily fabricated with high accuracy and stability without increasing electric power consumption without using an oscillation requlating trimmer capacitor by forming a time signal via a variable frequency divider in the watch using a piezo-electric vibrator for higher than 2kHz.
CONSTITUTION: Higher oscillating frequency output than 2kHz is generated from an oscillator 1 using no trimmer capacitor formed by a preferable temperature characteristic AT cut thickness slide crystal oscillator piezo-electric element 3 even with resonant frequency irreqularity. This output is processed without gate at relatively higher frequency controlled by a ROM 8 and a coincidence discriminator 9 stored with standard frequency and applied to a variable frequency divider 7 having low power consumption. Thus, the divider 7 produces a time signal of one second signal in high stability and accuracy. With this configuration, it can readily fabricate a watch having low power consumption with high stability and accuracy.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14501578A JPS5571983A (en) | 1978-11-24 | 1978-11-24 | Electronic watch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14501578A JPS5571983A (en) | 1978-11-24 | 1978-11-24 | Electronic watch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5571983A true JPS5571983A (en) | 1980-05-30 |
Family
ID=15375457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14501578A Pending JPS5571983A (en) | 1978-11-24 | 1978-11-24 | Electronic watch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5571983A (en) |
-
1978
- 1978-11-24 JP JP14501578A patent/JPS5571983A/en active Pending
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