JPS55107981A - Electronic watch - Google Patents
Electronic watchInfo
- Publication number
- JPS55107981A JPS55107981A JP1577579A JP1577579A JPS55107981A JP S55107981 A JPS55107981 A JP S55107981A JP 1577579 A JP1577579 A JP 1577579A JP 1577579 A JP1577579 A JP 1577579A JP S55107981 A JPS55107981 A JP S55107981A
- Authority
- JP
- Japan
- Prior art keywords
- temperature characteristics
- watch
- electronic watch
- standard signal
- signal source
- 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 improve the temperature characteristics of an electronic watch by forming a time standard signal using a composite resonator made of the same crystal peices.
CONSTITUTION: A resonance circuit and an amplifier are connected to a composite resonator made of the same crystal pieces to form a crystal oscillator 1201 as a time standard signal source. The period of this output is converted to a timing unit signal of a watch by a counting unit signal synthesizer 1202, and the unit signals are counted by a counting mechanism 1203 to thereby form a time information. This information is displayed on a display mechanism 1203. Such a standard signal source can selectively add and synthesize the portions of preferred temperature characteristics of the resonators with excellent temperaure characteristics. Since the steps in a watch is adjusted by a control mechanism provided in the circuit 1202, it does not affect the temperature characteristics. Thus, it can provide an electronic watch having preferable temperature characteristics.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1577579A JPS55107981A (en) | 1979-02-14 | 1979-02-14 | Electronic watch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1577579A JPS55107981A (en) | 1979-02-14 | 1979-02-14 | Electronic watch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55107981A true JPS55107981A (en) | 1980-08-19 |
Family
ID=11898179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1577579A Pending JPS55107981A (en) | 1979-02-14 | 1979-02-14 | Electronic watch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55107981A (en) |
-
1979
- 1979-02-14 JP JP1577579A patent/JPS55107981A/en active Pending
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