JPS59111329U - Signal switching circuit - Google Patents
Signal switching circuitInfo
- Publication number
- JPS59111329U JPS59111329U JP535983U JP535983U JPS59111329U JP S59111329 U JPS59111329 U JP S59111329U JP 535983 U JP535983 U JP 535983U JP 535983 U JP535983 U JP 535983U JP S59111329 U JPS59111329 U JP S59111329U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- signal switching
- input terminal
- switching circuit
- terminal
- 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)
- Electronic Switches (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
第１図は従来の信号切換え回路のブロック図、第２図は
本考案の信号切換え回路の要部を示すブロック図である
。
２・・・アンテナ、３・・・チューナ（受信手段）、６
・・・第１スイッチ回路（信号切換え手段）、７・・・
第１入力端子、８・・・第２入力端子、２２・・を出力
端子、２６．２９・・・コントロール端子、２８・・・
モード切換スイッチ、３１・・・第１遮断手段、３２・
・・第２遮断手段。FIG. 1 is a block diagram of a conventional signal switching circuit, and FIG. 2 is a block diagram showing the main parts of the signal switching circuit of the present invention. 2... Antenna, 3... Tuner (receiving means), 6
...first switch circuit (signal switching means), 7...
1st input terminal, 8...2nd input terminal, 22...output terminal, 26.29...control terminal, 28...
Mode changeover switch, 31... first cutoff means, 32.
...Second blocking means.
Claims (1)
第１信号が与えられる第１入力端子と、外部の機器から
供給される第２信号が与えられる第２入力端子と、出力
端子と、前記第１、第２信号のいずれか一方を択一選択
的に前記出力端子に導出するためのコントロール信号が
与えられるコントロール端子とを具備する信号切換え手
段と、前記コントロール信号を与える手段とを有する信
号切換え回路において、前記第１信号出力時に前記コン
トロール信号によって第２信号の前記第２入力端子への
供給を遮断する第１遮断手段と、前記第２信号出力時に
前記フトンロール信号によって第１信号の前記第１入力
端子への供給を遮断する第２遮断手段を設けたことを特
徴とする信号切 −換え回路。a first input terminal to which a first signal received through the receiving means of a device having a receiving means is applied; a second input terminal to which a second signal supplied from an external device is applied; an output terminal; 1. Signal switching means comprising a control terminal to which a control signal for selectively deriving one of the second signals to the output terminal is applied, and a means for applying the control signal. In the circuit, a first cutoff means for cutting off the supply of the second signal to the second input terminal by the control signal when the first signal is output; A signal switching circuit characterized in that a second cutoff means is provided for cutting off supply to the first input terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP535983U JPS59111329U (en) | 1983-01-17 | 1983-01-17 | Signal switching circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP535983U JPS59111329U (en) | 1983-01-17 | 1983-01-17 | Signal switching circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59111329U true JPS59111329U (en) | 1984-07-27 |
Family
ID=30136947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP535983U Pending JPS59111329U (en) | 1983-01-17 | 1983-01-17 | Signal switching circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59111329U (en) |
-
1983
- 1983-01-17 JP JP535983U patent/JPS59111329U/en active Pending
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