JPS5794674A - Electronic timepiece - Google Patents
Electronic timepieceInfo
- Publication number
- JPS5794674A JPS5794674A JP17050480A JP17050480A JPS5794674A JP S5794674 A JPS5794674 A JP S5794674A JP 17050480 A JP17050480 A JP 17050480A JP 17050480 A JP17050480 A JP 17050480A JP S5794674 A JPS5794674 A JP S5794674A
- Authority
- JP
- Japan
- Prior art keywords
- pulse
- counter
- gate
- time
- exactly
- 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
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C9/00—Electrically-actuated devices for setting the time-indicating means
- G04C9/08—Electrically-actuated devices for setting the time-indicating means by electric drive
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromechanical Clocks (AREA)
Abstract
PURPOSE:To exactly drive a step-motor, stepwise and to exactly correct the time, by shutting off a pulse of a constant period overlapping a high speed correcting pulse, counting only the high speed correcting pulse of a constant number, and driving a pulse motor. CONSTITUTION:When a switch S is turned on, an FF 17 is set by a monostable multivibrator 13, and AND gate 12 is opened, a high speed pulse from a frequency dividing circuit 2 is applied to a pulse motor driving circuit 6, and also is applied to a ternary counter 16 through an AND gate 14. Subsequently, the FF17 is reset by a carry signal generated by counting a prescribed number of the counter 16, and the time is corrected until the gate 12 is closed. When correcting said time, in case when a pointer driving pulse of every 20 seconds from a 20-scale counter 3 is also applied by overlapping the circuit 6, the gate 14 is closed by an output of the counter 3 through an inverter 15, this output is shut off and is not counted by the counter 16, a step-motor is stroke-driven exactly by a prescribed quantity, and the time is corrected exactly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17050480A JPS5794674A (en) | 1980-12-03 | 1980-12-03 | Electronic timepiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17050480A JPS5794674A (en) | 1980-12-03 | 1980-12-03 | Electronic timepiece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5794674A true JPS5794674A (en) | 1982-06-12 |
Family
ID=15906178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17050480A Pending JPS5794674A (en) | 1980-12-03 | 1980-12-03 | Electronic timepiece |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5794674A (en) |
-
1980
- 1980-12-03 JP JP17050480A patent/JPS5794674A/en active Pending
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