JPS6264085U - - Google Patents
Info
- Publication number
- JPS6264085U JPS6264085U JP15448185U JP15448185U JPS6264085U JP S6264085 U JPS6264085 U JP S6264085U JP 15448185 U JP15448185 U JP 15448185U JP 15448185 U JP15448185 U JP 15448185U JP S6264085 U JPS6264085 U JP S6264085U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- reference signal
- delay
- video signal
- comparison 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
- 230000003111 delayed effect Effects 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 4
- 230000003321 amplification Effects 0.000 claims 1
- 230000001934 delay Effects 0.000 claims 1
- 238000003199 nucleic acid amplification method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 230000010363 phase shift Effects 0.000 description 1
Landscapes
- Processing Of Color Television Signals (AREA)
Description
第１図は本考案の一実施例を示す図である。第
２図は周知のくし形フイルタを示す図である。
Ｖ……映像信号、Ｖ′……遅延された映像信号
（映像信号）、Ｒ……基準信号、Ｌ，Ｌ′……レ
ベル比較信号（レベル比較出力）、Ａ，Ａ′……
位相比較信号（位相比較出力）、Ｐ１，Ｐ２，Ｐ
３……パルス信号、２０……挿入回路、２２……
電圧制御増幅回路（利得制御回路）、２４……電
圧制御移相回路（可変遅延回路）、２６……１Ｈ
遅延線（遅延回路）、４０……振幅比較器（レベ
ル比較回路）、４６……位相比較器（位相比較回
路）。
FIG. 1 is a diagram showing an embodiment of the present invention. FIG. 2 is a diagram showing a well-known comb filter. V...Video signal, V'...Delayed video signal (video signal), R...Reference signal, L, L'...Level comparison signal (level comparison output), A, A'...
Phase comparison signal (phase comparison output), P 1 , P 2 , P
3 ... Pulse signal, 20... Insertion circuit, 22...
Voltage control amplifier circuit (gain control circuit), 24...Voltage control phase shift circuit (variable delay circuit), 26...1H
Delay line (delay circuit), 40... amplitude comparator (level comparison circuit), 46... phase comparator (phase comparison circuit).
Claims (1)
グ期間内に基準信号を挿入する挿入回路と、 前記映像信号と前記基準信号を遅延して遅延基
準信号を出力する遅延回路と、 前記遅延基準信号と前記基準信号のレベルを比
較しレベル比較出力を導出するレベル比較回路と
、 前記挿入回路の後段に接続され前記レベル比較
出力により前記映像信号の増幅利得を制御する利
得制御回路とを、 備えることを特徴とする遅延回路用のＡＧＣ回
路。 (2) 前記遅延基準信号と前記基準信号の位相を
比較し位相比較出力を導出する位相比較回路と、 前記挿入回路の後段に接続され前記位相比較出
力により前記映像信号の遅延量を制御する可変遅
延回路とを、 備えることを特徴とする実用新案登録請求の範
囲第１項記載の遅延回路用のＡＧＣ回路。[Claims for Utility Model Registration] (1) An insertion circuit that inserts a reference signal into a blanking period other than a burst period of a video signal, and a delay that delays the video signal and the reference signal to output a delayed reference signal. a level comparison circuit that compares the levels of the delayed reference signal and the reference signal and derives a level comparison output; and a gain that is connected after the insertion circuit and controls the amplification gain of the video signal using the level comparison output. An AGC circuit for a delay circuit, comprising: a control circuit. (2) a phase comparison circuit that compares the phases of the delayed reference signal and the reference signal and derives a phase comparison output; and a variable that is connected to a subsequent stage of the insertion circuit and controls the amount of delay of the video signal by the phase comparison output. An AGC circuit for a delay circuit according to claim 1, characterized in that the AGC circuit comprises: a delay circuit;
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15448185U JPS6264085U (en) | 1985-10-09 | 1985-10-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15448185U JPS6264085U (en) | 1985-10-09 | 1985-10-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6264085U true JPS6264085U (en) | 1987-04-21 |
Family
ID=31074307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15448185U Pending JPS6264085U (en) | 1985-10-09 | 1985-10-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6264085U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05252533A (en) * | 1992-03-06 | 1993-09-28 | Sharp Corp | Comb line y/c separator circuit |
-
1985
- 1985-10-09 JP JP15448185U patent/JPS6264085U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05252533A (en) * | 1992-03-06 | 1993-09-28 | Sharp Corp | Comb line y/c separator circuit |