JPS6356836U - - Google Patents
Info
- Publication number
- JPS6356836U JPS6356836U JP15189286U JP15189286U JPS6356836U JP S6356836 U JPS6356836 U JP S6356836U JP 15189286 U JP15189286 U JP 15189286U JP 15189286 U JP15189286 U JP 15189286U JP S6356836 U JPS6356836 U JP S6356836U
- Authority
- JP
- Japan
- Prior art keywords
- terminal
- control signal
- voltage
- signal
- connects
- 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.)
- Granted
Links
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Electronic Switches (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
Description
第１図はこの考案による信号切換装置の１実施
例の回路図、第２図は同実施例を用いた衛星放送
受信装置のブロツク図、第３図は従来の信号切換
装置を用いた衛星放送受信装置のブロツク図であ
る。
３６，４２……入力端子（第２及び第３の端子
）、４４……出力端子（第１の端子）、６０……
リセツト用ＩＣ（制御部）、４８……高周波リレ
ー接点（切換回路）。
Fig. 1 is a circuit diagram of an embodiment of a signal switching device according to this invention, Fig. 2 is a block diagram of a satellite broadcast receiving device using the same embodiment, and Fig. 3 is a satellite broadcasting system using a conventional signal switching device. FIG. 2 is a block diagram of a receiving device. 36, 42... Input terminal (second and third terminal), 44... Output terminal (first terminal), 60...
Reset IC (control unit), 48...High frequency relay contact (switching circuit).
Claims (1)
第１乃至第３の端子と、第１の端子の動作電源の
電圧が予め定めた基準電圧より大きいとき第１制
御信号を生成し小さいとき第２制御信号を生成す
る制御部と、第１乃至第３の端子間に介在し第１
制御信号を受けたとき第１の端子と第２の端子と
を接続し第２制御信号を受けたとき第１の端子と
第３の端子とを接続する切換回路とを具備する信
号切換装置。 first to third terminals that receive a high frequency signal and send out an operating power source; when the voltage of the operating power source of the first terminal is greater than a predetermined reference voltage, a first control signal is generated; when the voltage is smaller than a predetermined reference voltage, a second control signal is generated; a control unit that generates a
A signal switching device comprising a switching circuit that connects a first terminal and a second terminal when receiving a control signal and connects a first terminal and a third terminal when receiving a second control signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15189286U JPH036039Y2 (en) | 1986-10-02 | 1986-10-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15189286U JPH036039Y2 (en) | 1986-10-02 | 1986-10-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6356836U true JPS6356836U (en) | 1988-04-15 |
| JPH036039Y2 JPH036039Y2 (en) | 1991-02-15 |
Family
ID=31069372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15189286U Expired JPH036039Y2 (en) | 1986-10-02 | 1986-10-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH036039Y2 (en) |
-
1986
- 1986-10-02 JP JP15189286U patent/JPH036039Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH036039Y2 (en) | 1991-02-15 |
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