JPS56147092A - Watch processing method using microcomputer - Google Patents
Watch processing method using microcomputerInfo
- Publication number
- JPS56147092A JPS56147092A JP5038580A JP5038580A JPS56147092A JP S56147092 A JPS56147092 A JP S56147092A JP 5038580 A JP5038580 A JP 5038580A JP 5038580 A JP5038580 A JP 5038580A JP S56147092 A JPS56147092 A JP S56147092A
- Authority
- JP
- Japan
- Prior art keywords
- cpu
- power source
- commercial
- watch
- case
- 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
- G04G19/00—Electric power supply circuits specially adapted for use in electronic time-pieces
- G04G19/10—Arrangements for supplying back-up power
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electric Clocks (AREA)
- Power Sources (AREA)
Abstract
PURPOSE:To realize a watch processing even in a service interruption for a watch using a commercial AC power source, by giving a temperature compensation to the oscillation frequency of an oscillating circuit within CPU in case a service interruption occurs. CONSTITUTION:In case the commercial AC power source 4 is supplied, the commercial AC frequency is applied to the CPU via the clock input circuit 6 and in the form of the reference clock. The CPU counts the reference clock and then displays the time on the display device 10 via the memory 2. In the case of a service intertuption, the CPU power source is switched to the backup power source 7. At the same time, the information of the temperature sensor 8 is supplied to the oscillating circuit 3 in the CPU via the A/D converter 9, and a compensation of temperature is given to the oscillation frequency. The frequency received a temperature compensation is used for the reference clock to be applied to the display device 10 through the memory 2. In such way, a watch processing is performed even in a service interruption.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5038580A JPS56147092A (en) | 1980-04-18 | 1980-04-18 | Watch processing method using microcomputer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5038580A JPS56147092A (en) | 1980-04-18 | 1980-04-18 | Watch processing method using microcomputer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56147092A true JPS56147092A (en) | 1981-11-14 |
Family
ID=12857393
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5038580A Pending JPS56147092A (en) | 1980-04-18 | 1980-04-18 | Watch processing method using microcomputer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56147092A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6172930A (en) * | 1984-09-17 | 1986-04-15 | Matsushita Electric Ind Co Ltd | Control device for combustion equipment |
JPS63126020A (en) * | 1986-11-14 | 1988-05-30 | Matsushita Electric Ind Co Ltd | Timing control device |
-
1980
- 1980-04-18 JP JP5038580A patent/JPS56147092A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6172930A (en) * | 1984-09-17 | 1986-04-15 | Matsushita Electric Ind Co Ltd | Control device for combustion equipment |
JPH025976B2 (en) * | 1984-09-17 | 1990-02-06 | Matsushita Electric Ind Co Ltd | |
JPS63126020A (en) * | 1986-11-14 | 1988-05-30 | Matsushita Electric Ind Co Ltd | Timing control device |
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