JPS6297964U - - Google Patents
Info
- Publication number
- JPS6297964U JPS6297964U JP18942685U JP18942685U JPS6297964U JP S6297964 U JPS6297964 U JP S6297964U JP 18942685 U JP18942685 U JP 18942685U JP 18942685 U JP18942685 U JP 18942685U JP S6297964 U JPS6297964 U JP S6297964U
- Authority
- JP
- Japan
- Prior art keywords
- reference clock
- pulse
- measured
- asynchronous
- pulse width
- 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
- 238000005259 measurement Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Manipulation Of Pulses (AREA)
- Measurement Of Unknown Time Intervals (AREA)
Description
第１図は本考案の一具体的実施例を示す非同期
式パルス幅測定回路のブロツク線図、第２図はタ
イムチヤート、第３図は従来の非同期式パルス幅
測定回路の構成を示すブロツク線図、第４図はタ
イムチヤートである。
１……ＡＮＤゲート、２……カウンタ回路、３
……マイクロコンピユータ（ＣＰＵ）、４……判
別回路。
Fig. 1 is a block diagram of an asynchronous pulse width measuring circuit showing a specific embodiment of the present invention, Fig. 2 is a time chart, and Fig. 3 is a block diagram showing the configuration of a conventional asynchronous pulse width measuring circuit. Figure 4 is a time chart. 1...AND gate, 2...Counter circuit, 3
...Microcomputer (CPU), 4...Discrimination circuit.
Claims (1)
期とは非同期の周期を有する被測定パルスのパル
ス幅を測定する非同期式パルス幅測定回路におい
て、前記基準クロツクと前記被測定パルスから前
記被測定パルスの立上がり及び立下がり時の基準
クロツクの状態を判別する判別回路を具備したこ
とを特徴とする非同期式パルス幅測定回路。 In an asynchronous pulse width measurement circuit that measures the pulse width of a pulse to be measured having a period asynchronous to the period of the reference clock based on a reference clock, the rise and rise of the pulse to be measured are determined from the reference clock and the pulse to be measured. An asynchronous pulse width measuring circuit characterized by comprising a discrimination circuit for discriminating the state of a reference clock at the falling edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18942685U JPS6297964U (en) | 1985-12-09 | 1985-12-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18942685U JPS6297964U (en) | 1985-12-09 | 1985-12-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6297964U true JPS6297964U (en) | 1987-06-22 |
Family
ID=31141717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18942685U Pending JPS6297964U (en) | 1985-12-09 | 1985-12-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6297964U (en) |
-
1985
- 1985-12-09 JP JP18942685U patent/JPS6297964U/ja active Pending
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