JPS5646482A - Time interval measuring methode - Google Patents
Time interval measuring methodeInfo
- Publication number
- JPS5646482A JPS5646482A JP12196779A JP12196779A JPS5646482A JP S5646482 A JPS5646482 A JP S5646482A JP 12196779 A JP12196779 A JP 12196779A JP 12196779 A JP12196779 A JP 12196779A JP S5646482 A JPS5646482 A JP S5646482A
- Authority
- JP
- Japan
- Prior art keywords
- time
- signal
- measurement
- counter
- latch
- 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
- Measurement Of Unknown Time Intervals (AREA)
Abstract
PURPOSE: To realize a measurement of time inteval from the difference between the starting time and the finishing time of measurement, by expressing the time at the point of present spot by the contents of the counter and then latching the both times mentioned above.
CONSTITUTION: The counter 1 counts continuously the clocks S1 of a fixed cycle. The control circuit 3 delivers the latch signal S4 and the interruption request signal S5 in synchronization with the clock signal S1 during the rise and fall of the input signal S2. The latch circuit 2 latches the count value S6 of the counter 1 via the latch signal S4 in the form of the time signal at that time point. The microcomputer 4 detects via the signal S5 both the initiation and completion of the measurement and then reads it in the form of the output data S1 of the circuit 2 to store it into the RAM not shown in the figure. In the RAM starting and ending time of measurements stored. Accordingly, the time interval of measurement can be known from the initiation to the completion by calculating the difference between the two memory values.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12196779A JPS5646482A (en) | 1979-09-25 | 1979-09-25 | Time interval measuring methode |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12196779A JPS5646482A (en) | 1979-09-25 | 1979-09-25 | Time interval measuring methode |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5646482A true JPS5646482A (en) | 1981-04-27 |
Family
ID=14824306
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12196779A Pending JPS5646482A (en) | 1979-09-25 | 1979-09-25 | Time interval measuring methode |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5646482A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5767883A (en) * | 1980-10-15 | 1982-04-24 | Nippon Denso Co Ltd | Method and device for measuring time intervals |
JPS621772A (en) * | 1985-06-28 | 1987-01-07 | Denki Kagaku Kogyo Kk | Adhesive composition |
JPH05181562A (en) * | 1991-12-27 | 1993-07-23 | Mitsubishi Electric Corp | Timer circuit |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS502982A (en) * | 1973-05-09 | 1975-01-13 | ||
JPS526568A (en) * | 1975-07-04 | 1977-01-19 | Fujitsu Ltd | Time measuring unit |
JPS53128372A (en) * | 1977-04-15 | 1978-11-09 | Nec Corp | Time counting and calculating system |
-
1979
- 1979-09-25 JP JP12196779A patent/JPS5646482A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS502982A (en) * | 1973-05-09 | 1975-01-13 | ||
JPS526568A (en) * | 1975-07-04 | 1977-01-19 | Fujitsu Ltd | Time measuring unit |
JPS53128372A (en) * | 1977-04-15 | 1978-11-09 | Nec Corp | Time counting and calculating system |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5767883A (en) * | 1980-10-15 | 1982-04-24 | Nippon Denso Co Ltd | Method and device for measuring time intervals |
JPS632353B2 (en) * | 1980-10-15 | 1988-01-18 | Nippon Denso Co | |
JPS621772A (en) * | 1985-06-28 | 1987-01-07 | Denki Kagaku Kogyo Kk | Adhesive composition |
JPH05181562A (en) * | 1991-12-27 | 1993-07-23 | Mitsubishi Electric Corp | Timer circuit |
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