JPS5673384A - Time counting device - Google Patents
Time counting deviceInfo
- Publication number
- JPS5673384A JPS5673384A JP15100679A JP15100679A JPS5673384A JP S5673384 A JPS5673384 A JP S5673384A JP 15100679 A JP15100679 A JP 15100679A JP 15100679 A JP15100679 A JP 15100679A JP S5673384 A JPS5673384 A JP S5673384A
- Authority
- JP
- Japan
- Prior art keywords
- timer
- time
- counter
- subtraction
- signal
- 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 enable to stop an output of a timer signal by means of a simple memory constitution by a method wherein a timer signal is inverted after a time period which is a set time period multiplied by an integer has elapsed by using an integral memory.
CONSTITUTION: When a timer time set in a memory 3 of a timer time setting unit 2 and the present time by a counter 1 coincide with each other, a FF8 is set through a coincidence signal from a coincidence discrimination circuit 6, and a high level set output becomes a timer signal. On the other hand, a counter 9 starts a subtraction count to a preset value by means of the coincidence output of the circuit 6 and every time a subtraction ends, a subtraction end signal is applied to a counter 10 wherein a integral value is set by means of a memory 51 and at the same time, the counter 9 repeats a subtraction from the preset value. And when the content of the counter 10 performing subtraction becomes zero in answer to the subtraction end signal, the FF8 to which an end signal is applied from the counter 10 is reset, thus, the timer signal is inverted. With this, after a time period of a reset time multiplied by a set integral numeric has elapsed, a timer can be stopped by means of a simple constitution in which a plurality of timer time stored memories are unnecessitated.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15100679A JPS5673384A (en) | 1979-11-21 | 1979-11-21 | Time counting device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15100679A JPS5673384A (en) | 1979-11-21 | 1979-11-21 | Time counting device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5673384A true JPS5673384A (en) | 1981-06-18 |
Family
ID=15509222
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15100679A Pending JPS5673384A (en) | 1979-11-21 | 1979-11-21 | Time counting device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5673384A (en) |
-
1979
- 1979-11-21 JP JP15100679A patent/JPS5673384A/en active Pending
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