JPS6298386U - - Google Patents
Info
- Publication number
- JPS6298386U JPS6298386U JP19012685U JP19012685U JPS6298386U JP S6298386 U JPS6298386 U JP S6298386U JP 19012685 U JP19012685 U JP 19012685U JP 19012685 U JP19012685 U JP 19012685U JP S6298386 U JPS6298386 U JP S6298386U
- Authority
- JP
- Japan
- Prior art keywords
- switching element
- video signal
- video
- supply line
- power supply
- 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 3
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Closed-Circuit Television Systems (AREA)
Description
第１図および第２図は本考案による閉回路シス
テムの受像機側における映像信号確認用表示装置
の一実施例を示すもので、第１図は一部をブロツ
ク図で表わした要部の電気回路図、第２図は受像
機の外観を示す斜視図である。
１……受像機、２……受像管、３……高圧発生
回路、７……アノード、１１，２７……電源供給
線路、１２……第１スイツチングトランジスタ（
第１スイツチング素子）、１８……映像検出回路
、１９……スイツ制御回路、２４……第２スイツ
チングトランジスタ（第２スイツチング素子）。
Figures 1 and 2 show an embodiment of a display device for checking video signals on the receiver side of a closed circuit system according to the present invention. The circuit diagram and FIG. 2 are perspective views showing the external appearance of the receiver. DESCRIPTION OF SYMBOLS 1... Television receiver, 2... Picture tube, 3... High voltage generation circuit, 7... Anode, 11, 27... Power supply line, 12... First switching transistor (
18... image detection circuit, 19... switch control circuit, 24... second switching transistor (second switching element).
Claims (1)
受像管で画像として再生する閉回路システムにお
いて、前記映像信号の有無を検出する映像検出回
路と、前記受像管のアノードに高圧を印加する高
圧発生回路の電源供給線路に挿入された第１スイ
ツチング素子と、前記映像信号が伝送されていな
いことを表示するための表示ランプと、この表示
ランプの電源供給線路に挿入された第２スイツチ
ング素子と、前記映像検出回路の出力の有無に基
づいて、前記第１スイツチング素子をオン、オフ
するとともに、前記第２スイツチング素子をオン
、オフするスイツチ制御回路とを設けてなること
を特徴とする閉回路システムの受像機側における
映像信号確認用表示装置。 In a closed circuit system in which a video signal transmitted from an image pickup device is reproduced as an image by a picture tube on a receiver side, a video detection circuit detects the presence or absence of the video signal, and a high voltage is applied to the anode of the picture tube. a first switching element inserted into the power supply line of the generating circuit; an indicator lamp for indicating that the video signal is not being transmitted; and a second switching element inserted into the power supply line of the indicator lamp. , a switch control circuit that turns on and off the first switching element and turns on and off the second switching element based on the presence or absence of an output from the video detection circuit. A display device for checking video signals on the receiver side of the system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19012685U JPS6298386U (en) | 1985-12-10 | 1985-12-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19012685U JPS6298386U (en) | 1985-12-10 | 1985-12-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6298386U true JPS6298386U (en) | 1987-06-23 |
Family
ID=31143056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19012685U Pending JPS6298386U (en) | 1985-12-10 | 1985-12-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6298386U (en) |
-
1985
- 1985-12-10 JP JP19012685U patent/JPS6298386U/ja active Pending
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