JPS6285062U - - Google Patents
Info
- Publication number
- JPS6285062U JPS6285062U JP17566585U JP17566585U JPS6285062U JP S6285062 U JPS6285062 U JP S6285062U JP 17566585 U JP17566585 U JP 17566585U JP 17566585 U JP17566585 U JP 17566585U JP S6285062 U JPS6285062 U JP S6285062U
- Authority
- JP
- Japan
- Prior art keywords
- video signal
- signal
- unit
- fade
- composite video
- 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
Landscapes
- Studio Circuits (AREA)
Description
第１図は本考案のビデオ・フエーダ回路を示す
原理構成図、第２図は本考案の一実施例の回路図
、第３図Ａ〜Ｄは第２図における各部の信号を示
す波形図、第４図Ａ及びＢは信号の拡大波形図、
第５図は従来例の回路図、第６図Ａ〜Ｄは従来例
の動作を説明するための信号波形図である。
Ｓｆｄ１……フエード出力信号、Ｓｖｉ……複
合映像信号、Ｓｖｄ……映像信号、Ｓｈ……水平
同期信号、Ｓｃｂ……カラーバースト信号。
FIG. 1 is a principle block diagram showing the video fader circuit of the present invention, FIG. 2 is a circuit diagram of an embodiment of the present invention, and FIGS. 3A to 3D are waveform diagrams showing signals of each part in FIG. Figures 4A and B are enlarged waveform diagrams of the signals;
FIG. 5 is a circuit diagram of a conventional example, and FIGS. 6A to 6D are signal waveform diagrams for explaining the operation of the conventional example. Sfd1 ...Fade output signal, Svi ...Composite video signal, Svd ...Video signal, Sh...Horizontal synchronization signal, Scb ... Color burst signal.
Claims (1)
に接続されたフエード部及びスイツチング部と、
前記複合映像信号を導入してそれの同期信号部分
と映像信号部分とを分離検出してその検出出力信
号を前記スイツチング部に供給する分離部とを具
え、前記同期信号部分に対応する前記検出出力信
号で前記スイツチング部を動作させて前記フエー
ド部をバイパスし、前記映像信号部分に対応する
前記検出出力信号のときに、前記フエード部によ
つて前記複合映像信号をフエードするように構成
したことを特徴とするビデオ・フエーダ回路。 a fade section and a switching section connected in parallel so that a composite video signal is commonly supplied;
a separating unit that introduces the composite video signal, separates and detects a synchronizing signal portion and a video signal portion thereof, and supplies the detected output signal to the switching unit, the detecting output corresponding to the synchronizing signal portion; The switching unit is operated by a signal to bypass the fade unit, and the composite video signal is faded by the fade unit when the detection output signal corresponds to the video signal portion. Features a video fader circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17566585U JPS6285062U (en) | 1985-11-15 | 1985-11-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17566585U JPS6285062U (en) | 1985-11-15 | 1985-11-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6285062U true JPS6285062U (en) | 1987-05-30 |
Family
ID=31115201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17566585U Pending JPS6285062U (en) | 1985-11-15 | 1985-11-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6285062U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4921016A (en) * | 1972-04-17 | 1974-02-25 | ||
| JPS5134653U (en) * | 1974-09-06 | 1976-03-15 |
-
1985
- 1985-11-15 JP JP17566585U patent/JPS6285062U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4921016A (en) * | 1972-04-17 | 1974-02-25 | ||
| JPS5134653U (en) * | 1974-09-06 | 1976-03-15 |
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