JPS5936667U - Signal input switching device - Google Patents
Signal input switching deviceInfo
- Publication number
- JPS5936667U JPS5936667U JP13177182U JP13177182U JPS5936667U JP S5936667 U JPS5936667 U JP S5936667U JP 13177182 U JP13177182 U JP 13177182U JP 13177182 U JP13177182 U JP 13177182U JP S5936667 U JPS5936667 U JP S5936667U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- circuit
- switching
- video signal
- changeover switch
- 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)
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
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、本考案の信号入力切り換え装置を適用したテレビ
ジョン受像機の一実施例を示す概略構成図である。
１・・・テレビジョン受像機、７，８・・・ビデオテー
プレコーダ、７ｓ、 ３ｓ・・・切り換えスイッチ、
１′０・・・信号入力切り横え装置、１１・・・判別回
路、１２・・・切り換え回路、１３・・・遅延回路。The figure is a schematic configuration diagram showing an embodiment of a television receiver to which the signal input switching device of the present invention is applied. 1... Television receiver, 7, 8... Video tape recorder, 7s, 3s... changeover switch,
1'0...Signal input switching device, 11...Discrimination circuit, 12...Switching circuit, 13...Delay circuit.
Claims (1)
号に基づくビデオ信号のいずれか一方を、切り換えスイ
ッチを介して選択的に受像するようにしたテレビジョン
受像機に対し、前記受像信号としてビデオ信号が入力さ
れているか否かを、同期信号の有無で判別する判別回路
と、該判別回路が同期信号無しと判別した場合は、前記
テレビジョン受像機が選択チャンネルにアンテナが受信
した信号に基づくビデオ信号を受像するよう前記切り換
えスイッチを設定する切り換え回路と、該切り換え回路
と前記判別回路の間に設けられ、該判別回路の判別結果
を、前記切り換えスイッチの切り換えに要する時間もし
くはそれ以上遅延させて、切り換え回路に伝送する遅延
回路とからなる信号入力切り換え装置。For a television receiver that is configured to selectively receive either an external video signal from an external device or a video signal based on a signal received by an antenna via a changeover switch, the video signal is used as the received signal. A determination circuit that determines whether or not a synchronization signal is input based on the presence or absence of a synchronization signal, and when the determination circuit determines that there is no synchronization signal, the television receiver transmits a video signal based on the signal received by the antenna to the selected channel. a switching circuit for setting the changeover switch to receive an image; and a switching circuit provided between the switching circuit and the discrimination circuit, the discrimination result of the discrimination circuit being delayed by the time required for switching the changeover switch or longer, A signal input switching device consisting of a delay circuit that transmits data to a switching circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13177182U JPS5936667U (en) | 1982-08-31 | 1982-08-31 | Signal input switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13177182U JPS5936667U (en) | 1982-08-31 | 1982-08-31 | Signal input switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5936667U true JPS5936667U (en) | 1984-03-07 |
Family
ID=30297795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13177182U Pending JPS5936667U (en) | 1982-08-31 | 1982-08-31 | Signal input switching device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5936667U (en) |
-
1982
- 1982-08-31 JP JP13177182U patent/JPS5936667U/en active Pending
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