JPS58164365U

JPS58164365U - TV signal transmission line switching device

Info

Publication number: JPS58164365U
Application number: JP1982059193U
Authority: JP
Inventors: 石川　朝夫
Original assignee: 宇呂電子工業株式会社
Priority date: 1982-04-23
Filing date: 1982-04-23
Publication date: 1983-11-01
Also published as: JPS6236378Y2

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

[Brief explanation of the drawing]

第１図は本考案の一実施例に係る有線テレビ信号伝送線
の切換装置の説明図、第２図は第１図の切換装置の回路
図、第３図は他の実施例に係る切換装置の回路図、第４
図は第２図の回路を実装した切換装置−の分解斜視図、
第５図は第４図中のプリント基板の底面斜視図である。１・・・第１のテレビ信号伝送線、２・・・第２のテレ
　、ビ信号伝送線、３・・・屋内引込線、４・・・テレ
ビジョン受像機、５・・・切換装置、６・・・切換信号
発生器、１３・・・第１の開閉スイッチ、１４・・・第
２の開閉スイッチ、１５・・・反転装置、２０・・・第
１の常閉リードスイッチ、２１・・・第２の常閉リード
スイッチ、２２・・・第３の常開リードスイッチ、２３
・・・第１の常開リードスイッチ、２４・・・第２の常
開リードスイッチ、２５・・・第３の常閉リードスイッ
チ、４０・・・電磁石。FIG. 1 is an explanatory diagram of a switching device for cable television signal transmission lines according to an embodiment of the present invention, FIG. 2 is a circuit diagram of the switching device of FIG. 1, and FIG. 3 is a switching device according to another embodiment. Circuit diagram, 4th
The figure is an exploded perspective view of a switching device that implements the circuit shown in Figure 2.
5 is a bottom perspective view of the printed circuit board in FIG. 4. FIG. DESCRIPTION OF SYMBOLS 1... 1st television signal transmission line, 2... 2nd television, TV signal transmission line, 3... Indoor lead-in line, 4... Television receiver, 5... Switching device, 6 ...Switching signal generator, 13...First open/close switch, 14...Second open/close switch, 15...Reversing device, 20...First normally closed reed switch, 21... - Second normally closed reed switch, 22...Third normally open reed switch, 23
...first normally open reed switch, 24...second normally open reed switch, 25...third normally closed reed switch, 40...electromagnet.

Claims

[Claims for Utility Model Registration] 1. The input sides of the first and second open/close switches are connected to the first and second television signal transmission lines, respectively, and the output sides of the first and second open/close switches are connected to the television signal transmission line. The first and second open/close switches are connected to the indoor lead-in line connected to the television receiver, and the first and second open/close switches are provided with reversing devices for reversing their open/closed states, and the operation signal transmitted through the television signal transmission line or the indoor lead-in line is A television signal transmission line switching device configured to operate the reversing device. 2. Utility Model Registration Scope of Claim 1. The apparatus according to claim 1, wherein the first open/close switch is at least two or more first and second normally closed reed switches that open and close the first television signal transmission line. , at least one third normally open reed switch that allows the high frequency television signal flowing through the capacitance of the first and second reed switches to flow to the ground; ,' at least two or more first television signal transmission lines that open and close the second television signal transmission line;
and a second normally open reed switch, and at least one or more third normally closed reed switches that flow the high frequency television signal flowing through the capacitance of the first and second reed switches to ground. and the reversing device includes the first, second, and third normally closed reed switches and the first,
A television signal transmission line switching device comprising an electromagnet that reverses the open/close state of a second and third normally open reed switch.