JPH0420723U - - Google Patents
Info
- Publication number
- JPH0420723U JPH0420723U JP6220090U JP6220090U JPH0420723U JP H0420723 U JPH0420723 U JP H0420723U JP 6220090 U JP6220090 U JP 6220090U JP 6220090 U JP6220090 U JP 6220090U JP H0420723 U JPH0420723 U JP H0420723U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- audio
- outputs
- audio signal
- gain
- 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 9
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Control Of Amplification And Gain Control (AREA)
- Amplifiers (AREA)
Description
第１図は本考案の一実施例を示すブロツク図、
第２図は本考案に用いる電圧供給回路の回路図、
第３図は本考案に用いる電圧供給回路の入出力信
号のタイムチヤート、第４図は本考案の入出力信
号の波形図、第５図は従来技術の一例を示すブロ
ツク図、第６図は従来技術の入出力信号の波形図
である。
１１……加算器、１２Ａ，１２Ｂ……利得制御
回路、１３……フリツプフロツプ回路、１４……
電圧供給回路、５２……音量コントロール回路、
５３……スピーカ駆動回路、５４……スピーカー
。
FIG. 1 is a block diagram showing an embodiment of the present invention.
Figure 2 is a circuit diagram of the voltage supply circuit used in the present invention.
Fig. 3 is a time chart of input/output signals of the voltage supply circuit used in the present invention, Fig. 4 is a waveform diagram of input/output signals of the present invention, Fig. 5 is a block diagram showing an example of the conventional technology, and Fig. 6 is a FIG. 3 is a waveform diagram of input/output signals in the prior art. 11... Adder, 12A, 12B... Gain control circuit, 13... Flip-flop circuit, 14...
Voltage supply circuit, 52...Volume control circuit,
53...Speaker drive circuit, 54...Speaker.
Claims (1)
れか一方を選択するための第一及び第二の動作信
号を同時に出力する信号切換回路と、 前記第一及び第二の動作信号の供給を受け、第
一の音声信号が選択されたとき徐々に増加し、第
二の音声信号が選択されたとき徐々に減衰する第
一の制御信号及び、第一の音声信号が選択された
とき徐々に減衰し、第二の音声信号が選択された
とき徐々に増加する第二の制御信号を出力する利
得制御信号供給回路と、 前記第一の音声信号の供給を受け、前記第一の
制御信号により、前記第一の音声信号の利得を制
御して出力する第一の利得制御回路と、 前記第二の音声信号の供給を受け、前記第二の
制御信号により、前記第二の音声信号の利得を制
御して出力する第一の利得制御回路と、 利得制御された前記第一及び第二の音声出力を
加算して、第三の音声出力として出力する加算器
と、 前記第三の音声信号により音声を出力するスピ
ーカーとを具備したことを特徴とする音声信号切
換装置。[Claims for Utility Model Registration] A signal switching circuit that simultaneously outputs first and second operation signals for selecting one of the first and second audio signals by a switching signal; a first control signal that is supplied with a second operating signal and gradually increases when the first audio signal is selected and gradually attenuates when the second audio signal is selected; a gain control signal supply circuit that outputs a second control signal that gradually attenuates when the second audio signal is selected and gradually increases when the second audio signal is selected; a first gain control circuit that controls and outputs the gain of the first audio signal according to the first control signal; a first gain control circuit that controls and outputs the gain of a second audio signal; and an adder that adds the gain-controlled first and second audio outputs and outputs the result as a third audio output. An audio signal switching device comprising: a speaker that outputs audio based on the third audio signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6220090U JPH0420723U (en) | 1990-06-14 | 1990-06-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6220090U JPH0420723U (en) | 1990-06-14 | 1990-06-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0420723U true JPH0420723U (en) | 1992-02-21 |
Family
ID=31591128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6220090U Pending JPH0420723U (en) | 1990-06-14 | 1990-06-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0420723U (en) |
-
1990
- 1990-06-14 JP JP6220090U patent/JPH0420723U/ja active Pending
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