JPH0444785U - - Google Patents
Info
- Publication number
- JPH0444785U JPH0444785U JP8568990U JP8568990U JPH0444785U JP H0444785 U JPH0444785 U JP H0444785U JP 8568990 U JP8568990 U JP 8568990U JP 8568990 U JP8568990 U JP 8568990U JP H0444785 U JPH0444785 U JP H0444785U
- Authority
- JP
- Japan
- Prior art keywords
- output
- delay
- video signal
- delay time
- amplification
- 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
- 238000001514 detection method Methods 0.000 claims description 4
- 230000003321 amplification Effects 0.000 claims 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Description
第１図は本考案の一実施例の構成を示すブロツ
ク図。第２図は本考案の一実施例の変形例の構成
を示すブロツク図。第３図は本考案の応用例の構
成を示すブロツク図。
１……ドロツプアウト検出回路、２……検波回
路、３Ａ……バンドパスフイルタ、３Ｂ……反転
増幅回路、４……遅延回路、５……加算回路、６
……１Ｈ遅延回路、７……位相補正回路、８……
ジツタ検出回路、９……切替スイツチ回路。
FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. FIG. 2 is a block diagram showing the configuration of a modification of one embodiment of the present invention. FIG. 3 is a block diagram showing the configuration of an applied example of the present invention. DESCRIPTION OF SYMBOLS 1...Dropout detection circuit, 2...Detection circuit, 3A...Band pass filter, 3B...Inverting amplifier circuit, 4...Delay circuit, 5...Addition circuit, 6
...1H delay circuit, 7...phase correction circuit, 8...
Jitter detection circuit, 9... changeover switch circuit.
Claims (1)
イルタ手段と、フイルタ手段によつて取り出され
たカラー信号のレベルを（−２）倍に増幅する増
幅手段と、フイルタ手段による遅延時間と増幅手
段による遅延時間との和の遅延時間再生ビデオ信
号を遅延させる遅延手段と、増幅手段の出力と遅
延手段の出力とを加算する加算手段と、加算手段
の出力を１水平走査期間遅延させる１Ｈ遅延手段
と、ドロツプアウト検出手段の出力に伴つて再生
ビデオ信号と１Ｈ遅延手段の出力に伴う出力とを
選択的に取り出す切替スイツチ手段とを備えこと
を特徴とするドロツプアウト補償回路。 A filter means for extracting a color signal from a reproduced video signal, an amplification means for amplifying the level of the color signal extracted by the filter means by (-2) times, a delay time due to the filter means and a delay time due to the amplification means. a delay means for delaying the playback video signal by a delay time of the sum of , an addition means for adding the output of the amplification means and an output of the delay means, a 1H delay means for delaying the output of the addition means by one horizontal scanning period, and dropout detection. 1. A dropout compensation circuit comprising changeover switch means for selectively taking out a reproduced video signal in accordance with the output of the means and an output in accordance with the output of the 1H delay means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8568990U JPH0444785U (en) | 1990-08-15 | 1990-08-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8568990U JPH0444785U (en) | 1990-08-15 | 1990-08-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0444785U true JPH0444785U (en) | 1992-04-16 |
Family
ID=31817032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8568990U Pending JPH0444785U (en) | 1990-08-15 | 1990-08-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0444785U (en) |
-
1990
- 1990-08-15 JP JP8568990U patent/JPH0444785U/ja active Pending