JPS6310677U - - Google Patents
Info
- Publication number
- JPS6310677U JPS6310677U JP10455686U JP10455686U JPS6310677U JP S6310677 U JPS6310677 U JP S6310677U JP 10455686 U JP10455686 U JP 10455686U JP 10455686 U JP10455686 U JP 10455686U JP S6310677 U JPS6310677 U JP S6310677U
- Authority
- JP
- Japan
- Prior art keywords
- video signal
- multivibrator
- mono
- predetermined period
- switching circuit
- 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
- 238000000605 extraction Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は本考案による映像信号抽出回路の一実
施例を示すブロツク図、第２図乃至第４図は第１
図に示す回路の動作を説明する波形図である。
１……入力端子、４……モノマルチバイブレー
タ、５……モノマルチバイブレータ、６……モノ
マルチバイブレータ、７……モノマルチバイブレ
ータ、８……アンドゲート、９……切替回路、１
０……出力端子。
FIG. 1 is a block diagram showing an embodiment of a video signal extraction circuit according to the present invention, and FIGS.
FIG. 3 is a waveform diagram illustrating the operation of the circuit shown in the figure. 1... Input terminal, 4... Mono multivibrator, 5... Mono multivibrator, 6... Mono multivibrator, 7... Mono multivibrator, 8... AND gate, 9... Switching circuit, 1
0...Output terminal.
Claims (1)
抽出回路において、前記所定周期より大きな反転
時間の第１のリトリガー型モノマルチバイブレー
タと、前記所定周期より小さな反転時間の第２の
リトリガー型モノマルチバイブレータと、入力映
像信号を通過または遮断する切替回路とを有し、
第１のモノマルチバイブレータと、第２のモノマ
ルチバイブレータの反転動作状態を検出すること
により前記切替回路を切り替え制御することを特
徴とする映像信号抽出回路。 In a video signal extraction circuit for extracting a video signal of a predetermined period, a first retrigger type mono multivibrator having an inversion time larger than the predetermined period, and a second retrigger type mono multivibrator having an inversion time smaller than the predetermined period. and a switching circuit that passes or blocks the input video signal,
A video signal extraction circuit characterized in that the switching circuit is switched and controlled by detecting inverted operating states of a first mono-multivibrator and a second mono-multivibrator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10455686U JPS6310677U (en) | 1986-07-07 | 1986-07-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10455686U JPS6310677U (en) | 1986-07-07 | 1986-07-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6310677U true JPS6310677U (en) | 1988-01-23 |
Family
ID=30978161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10455686U Pending JPS6310677U (en) | 1986-07-07 | 1986-07-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6310677U (en) |
-
1986
- 1986-07-07 JP JP10455686U patent/JPS6310677U/ja active Pending
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