JPS5854180U - Video disc player dropout compensation circuit - Google Patents
Video disc player dropout compensation circuitInfo
- Publication number
- JPS5854180U JPS5854180U JP14847981U JP14847981U JPS5854180U JP S5854180 U JPS5854180 U JP S5854180U JP 14847981 U JP14847981 U JP 14847981U JP 14847981 U JP14847981 U JP 14847981U JP S5854180 U JPS5854180 U JP S5854180U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- dropout
- video signal
- signal
- disc player
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
図は本考案の一実施例を示す回路ブロック図を顕わす。
主な図番の説明、２・・・・・・ＩＨ遅延回路、４・・
・・・・ドロップアウト検出回路、６・・・・・・信号
切換回路、５・・・・・・ゲート回路、８・・・・・・
重畳区間検出回路。The figure shows a circuit block diagram showing one embodiment of the present invention. Explanation of main drawing numbers, 2... IH delay circuit, 4...
...Dropout detection circuit, 6...Signal switching circuit, 5...Gate circuit, 8...
Superimposed section detection circuit.
Claims (1)
て成る映像信号をＦＭ変調記録して成るディスクレコー
ドを再生するビデオディスクプレーヤに於て、再生ＦＭ
映像信号をＩＨ（Ｈは水平同期区間）遅延せしめるＩＨ
遅延回路と、再生ＦＭ映像信号を検波してドロップアウ
トを検出するドロップアウト検出回路と、前記ＩＨ遅延
回路及び前記ドロップアウト検出回路の後段に配されド
ロップアウト検出出力の発生に併い非遅延の再生映像信
号に代えてＩＨ遅延した再生映像信号を選択導出する信
号切換回路と、再生映像信号の同期分、 離出力を入
力してコード信号重畳区間を含む区間を検出する重畳区
間検出回路と、前記ドロップアウト検出回路及び前記信
号切換回路の間に配され重畳区間検出出力の発生に伴い
ドロップアウト検出出力の通過を阻止するゲート回路と
をそれぞれ配して成るビデオディスクプレーヤのドロッ
プアウト補償回路。In a video disc player that plays back a disc record formed by FM-modulated recording of a video signal formed by superimposing a code signal in a predetermined section of a vertical blanking period, the playback FM
IH that delays the video signal by IH (H is horizontal synchronization interval)
a delay circuit, a dropout detection circuit that detects dropout by detecting the reproduced FM video signal, and a non-delayed dropout detection circuit that is arranged after the IH delay circuit and the dropout detection circuit and generates the dropout detection output. a signal switching circuit that selectively derives an IH-delayed reproduced video signal in place of the reproduced video signal; a superimposed section detection circuit that inputs the synchronized portion and separation output of the reproduced video signal to detect a section including a code signal superimposed section; A dropout compensation circuit for a video disc player, comprising a gate circuit disposed between the dropout detection circuit and the signal switching circuit and blocking the passage of the dropout detection output upon generation of the superimposed section detection output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14847981U JPS5854180U (en) | 1981-10-05 | 1981-10-05 | Video disc player dropout compensation circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14847981U JPS5854180U (en) | 1981-10-05 | 1981-10-05 | Video disc player dropout compensation circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5854180U true JPS5854180U (en) | 1983-04-13 |
Family
ID=29941294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14847981U Pending JPS5854180U (en) | 1981-10-05 | 1981-10-05 | Video disc player dropout compensation circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5854180U (en) |
-
1981
- 1981-10-05 JP JP14847981U patent/JPS5854180U/en active Pending
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