JPS6168572U - - Google Patents
Info
- Publication number
- JPS6168572U JPS6168572U JP15122884U JP15122884U JPS6168572U JP S6168572 U JPS6168572 U JP S6168572U JP 15122884 U JP15122884 U JP 15122884U JP 15122884 U JP15122884 U JP 15122884U JP S6168572 U JPS6168572 U JP S6168572U
- Authority
- JP
- Japan
- Prior art keywords
- video signal
- power
- camera
- power adapter
- constant voltage
- 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
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims 4
- 238000002955 isolation Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
Description
第２図及び第３図は従来方式の電源重畳同軸伝
送回路図、第１図は本考案の電源重畳同軸伝送回
路図である。
１：ＤＣ分離部、２，９：入出力トランジスタ
、５：ＤＣ分離コンデンサ、６，１１：終端抵抗
、７：同軸ケーブル、８：ビデオ分離部、１４：
検出抵抗、１３：帰還コンデンサ、１６：帰還ト
ランジスタ。
2 and 3 are conventional power superimposed coaxial transmission circuit diagrams, and FIG. 1 is a power superimposed coaxial transmission circuit diagram of the present invention. 1: DC isolation section, 2, 9: Input/output transistor, 5: DC isolation capacitor, 6, 11: Termination resistor, 7: Coaxial cable, 8: Video isolation section, 14:
Detection resistor, 13: Feedback capacitor, 16: Feedback transistor.
Claims (1)
ケーブルを用いて接続し、上記電源アダプヨ側の
ビデオ信号分離部からカメラ側へＤＣ（直流）電
源を供給し、これと同時に上記カメラ側のＤＣ分
離部から電源アダプタ側へ映像信号を送る電源重
畳同軸伝送回路において、上記電源アダプタ側の
ビデオ信号分離部の電源送りだし部をトランジス
タのエミツタ受けによる定電圧回路で構成し、上
記カメラ側から伝送され該ビデオ信号分離部にて
取出された映像信号を該定電圧回路に帰還させる
構成とすることにより、該定電圧回路の映像信号
に対するインピーダンスを上げ、上記同軸ケーブ
ルの整合を得ることを特徴としたビデオカメラの
電源重畳同軸伝送回路。 A coaxial cable is used to connect the video camera and its power adapter, and DC (direct current) power is supplied from the video signal separation unit on the power adapter side to the camera side, and at the same time, the DC separation unit on the camera side In a power superimposed coaxial transmission circuit that sends a video signal from the camera side to the power adapter side, the power supply section of the video signal separation section on the power adapter side is configured with a constant voltage circuit using a transistor emitter receiver, and the video signal transmitted from the camera side is A video camera characterized in that the video signal taken out by the signal separation section is fed back to the constant voltage circuit, thereby increasing the impedance of the constant voltage circuit to the video signal and achieving matching of the coaxial cable. power superimposed coaxial transmission circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15122884U JPS6168572U (en) | 1984-10-08 | 1984-10-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15122884U JPS6168572U (en) | 1984-10-08 | 1984-10-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6168572U true JPS6168572U (en) | 1986-05-10 |
Family
ID=30709352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15122884U Pending JPS6168572U (en) | 1984-10-08 | 1984-10-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6168572U (en) |
-
1984
- 1984-10-08 JP JP15122884U patent/JPS6168572U/ja active Pending