JPS56107191A - Time interval measurement device - Google Patents
Time interval measurement deviceInfo
- Publication number
- JPS56107191A JPS56107191A JP1025180A JP1025180A JPS56107191A JP S56107191 A JPS56107191 A JP S56107191A JP 1025180 A JP1025180 A JP 1025180A JP 1025180 A JP1025180 A JP 1025180A JP S56107191 A JPS56107191 A JP S56107191A
- Authority
- JP
- Japan
- Prior art keywords
- time interval
- clock
- reference clock
- period
- output
- 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
- G04F—TIME-INTERVAL MEASURING
- G04F10/00—Apparatus for measuring unknown time intervals by electric means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Unknown Time Intervals (AREA)
Abstract
PURPOSE:To improve time interval measurement resolution without increasing a clock frequency by taking out an output at a delay point divided into a prearranged number in a period of a reference clock by plural D-type FF's connected to the delay line. CONSTITUTION:A pulse of such width as to comply with a time difference between inputs A, B into input circuits 1, 2 is generated by an exclusive OR circuit 3, opening AND gate 4 and a clock from a reference clock generation circuit 5 is counted by means of a counter 8. Thus a time interval is measured. An output from the circuit 3 becomes a clock and a value 2/10 times the period To of a reference clock is detected by means of an output from a tap corresponding to 10 pieces or so of D-type FF connected to a delay line 10 held dependig on the rising of the afore- mentioned pulse. In the same way, the rising point of the afore-mentioned pulse is detected a resolution which is equivalent to 1/10 of the period To of a reference clock, so that time interval measurement resolution can be improved without increasing a clock frequency.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1025180A JPS56107191A (en) | 1980-01-31 | 1980-01-31 | Time interval measurement device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1025180A JPS56107191A (en) | 1980-01-31 | 1980-01-31 | Time interval measurement device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56107191A true JPS56107191A (en) | 1981-08-25 |
Family
ID=11745086
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1025180A Pending JPS56107191A (en) | 1980-01-31 | 1980-01-31 | Time interval measurement device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56107191A (en) |
-
1980
- 1980-01-31 JP JP1025180A patent/JPS56107191A/en active Pending
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