JPS5936015U - Signal switching circuit - Google Patents
Signal switching circuitInfo
- Publication number
- JPS5936015U JPS5936015U JP13165982U JP13165982U JPS5936015U JP S5936015 U JPS5936015 U JP S5936015U JP 13165982 U JP13165982 U JP 13165982U JP 13165982 U JP13165982 U JP 13165982U JP S5936015 U JPS5936015 U JP S5936015U
- Authority
- JP
- Japan
- Prior art keywords
- external signal
- signal
- input terminal
- circuit
- supplied
- 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
- Television Signal Processing For Recording (AREA)
- Signal Processing Not Specific To The Method Of Recording And Reproducing (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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の高周波信号切換え回路を示す回路図、第
２図はこの考案に係る信号切換え回路の一実施例を示す
回路図、第３図は第２図に示す回路の具体的構成の一例
を示す回路図である。
１２・・・ビデオテープレコーダ、１２１・・・外部信
号入力端子、１２２・・・増幅回路、１２４・・・出力
端子、１２５・・・混合回路、１２６・・・リレースイ
ッチ。Fig. 1 is a circuit diagram showing a conventional high frequency signal switching circuit, Fig. 2 is a circuit diagram showing an embodiment of the signal switching circuit according to this invention, and Fig. 3 is a circuit diagram showing a specific configuration of the circuit shown in Fig. 2. FIG. 2 is a circuit diagram showing an example. 12... Video tape recorder, 121... External signal input terminal, 122... Amplifying circuit, 124... Output terminal, 125... Mixing circuit, 126... Relay switch.
Claims (2)
号を増幅する増幅回路と、一方の入力端子にこの増幅回
路にて増幅された前記外部信号が供給され他方入力端子
に前記電気機器内部にて生成され前記外部信号とは互い
に混信しないような周波数帯に設定されている内部信号
が供給される混合回路と、この混合回路の出力信号が導
びかれる出力端子と、前記電気機器がオフ状態に繁いて
前記外部信号入力端子に印加されている外部信号を前記
出力端子に導びくスイッチング手段とを具備した信号切
換え回路。(1) An amplifier circuit that amplifies an external signal applied to an external signal input terminal of an electrical device, and one input terminal is supplied with the external signal amplified by the amplifier circuit, and the other input terminal is supplied with the external signal inside the electrical device. a mixing circuit that is supplied with an internal signal that is generated in a frequency band set in a frequency band that does not interfere with the external signal; an output terminal to which the output signal of this mixing circuit is guided; and switching means for guiding an external signal, which is often applied to the external signal input terminal, to the output terminal.
子と前記混合回路の出力端子間を断・続接続するための
リレースイッチで成り、このリレースイッチを前記電気
機器のオン・オフの操作に連動して駆動させるようにし
たことを特徴とする実用新案登録請求の範囲第１項に記
載の信号切換え回路。(2) The switching means comprises a relay switch for connecting/disconnecting the input terminal of the amplifier circuit and the output terminal of the mixing circuit, and the relay switch is linked to the on/off operation of the electrical equipment. The signal switching circuit according to claim 1, characterized in that the signal switching circuit is configured to be driven by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13165982U JPS5936015U (en) | 1982-08-31 | 1982-08-31 | Signal switching circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13165982U JPS5936015U (en) | 1982-08-31 | 1982-08-31 | Signal switching circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5936015U true JPS5936015U (en) | 1984-03-06 |
Family
ID=30297576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13165982U Pending JPS5936015U (en) | 1982-08-31 | 1982-08-31 | Signal switching circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5936015U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63192776U (en) * | 1987-05-29 | 1988-12-12 |
-
1982
- 1982-08-31 JP JP13165982U patent/JPS5936015U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63192776U (en) * | 1987-05-29 | 1988-12-12 |
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