JPH0290595U - - Google Patents
Info
- Publication number
- JPH0290595U JPH0290595U JP17088488U JP17088488U JPH0290595U JP H0290595 U JPH0290595 U JP H0290595U JP 17088488 U JP17088488 U JP 17088488U JP 17088488 U JP17088488 U JP 17088488U JP H0290595 U JPH0290595 U JP H0290595U
- Authority
- JP
- Japan
- Prior art keywords
- line
- terminal
- circuit
- signal input
- audio signal
- 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
- 230000005236 sound signal Effects 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Stereophonic Arrangements (AREA)
Description
第１図は本考案の一実施例の回路図、第２図は
ステレオ機器に音声信号が入力されてないときに
外来ノイズの影響を受けないような音声信号入力
回路図、第３図はステレオ機器にモノラル音声信
号も入力する場合の音声信号入力回路図、第４図
は第２図と第３図の音声信号入力回路を単純に合
成した回路図である。
１……左端子、２……右端子、３……左回路、
４……右回路、１１……第１のライン、１２……
第２のライン、２１……第３のライン、２２……
第４のライン、ＳＷ１……第１のスイツチ、ＳＷ
２……第２のスイツチ。
Figure 1 is a circuit diagram of one embodiment of the present invention, Figure 2 is an audio signal input circuit diagram that is not affected by external noise when no audio signal is input to stereo equipment, and Figure 3 is a stereo FIG. 4 is an audio signal input circuit diagram when a monaural audio signal is also input to the device, and is a circuit diagram simply combining the audio signal input circuits of FIGS. 2 and 3. 1...Left terminal, 2...Right terminal, 3...Left circuit,
4... Right circuit, 11... First line, 12...
Second line, 21...Third line, 22...
Fourth line, SW1...first switch, SW
2...Second switch.
Claims (1)
られる第１の回路と、第２の端子と、この端子に
入力した信号が伝えられる第２の回路とを有する
音声信号入力回路において、前記第１の端子の一
方側および他方側を第１の回路にそれぞれ接続す
る接地してない第１のラインと接地した第２のラ
インと、前記第１の端子に入力しないときに前記
第１と第２のラインを接続する第１のスイツチと
、前記第２の端子の一方側を前記第２の回路に接
続する接地してない第３のラインと、前記第２の
端子の他方側を前記第２のラインに接続する第４
のラインと、前記第２の端子に入力しないときに
前記第３と第１のラインを接続する第２のスイツ
チを具備したことを特徴とする音声信号入力回路
。 In the audio signal input circuit, the audio signal input circuit has a first terminal, a first circuit to which a signal input to the terminal is transmitted, a second terminal, and a second circuit to which a signal input to the terminal is transmitted. an ungrounded first line and a grounded second line that respectively connect one side and the other side of the first terminal to the first circuit; a first switch connecting the second line; an ungrounded third line connecting one side of the second terminal to the second circuit; and an ungrounded third line connecting the other side of the second terminal to the second circuit. The fourth line connects to the second line
1. An audio signal input circuit comprising: a line; and a second switch that connects the third line and the first line when no input is made to the second terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17088488U JPH0290595U (en) | 1988-12-27 | 1988-12-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17088488U JPH0290595U (en) | 1988-12-27 | 1988-12-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0290595U true JPH0290595U (en) | 1990-07-18 |
Family
ID=31462219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17088488U Pending JPH0290595U (en) | 1988-12-27 | 1988-12-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0290595U (en) |
-
1988
- 1988-12-27 JP JP17088488U patent/JPH0290595U/ja active Pending
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