JPS59138012U - Audio signal mute circuit - Google Patents
Audio signal mute circuitInfo
- Publication number
- JPS59138012U JPS59138012U JP3339383U JP3339383U JPS59138012U JP S59138012 U JPS59138012 U JP S59138012U JP 3339383 U JP3339383 U JP 3339383U JP 3339383 U JP3339383 U JP 3339383U JP S59138012 U JPS59138012 U JP S59138012U
- Authority
- JP
- Japan
- Prior art keywords
- output
- signal
- mute
- circuit
- 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.)
- Granted
Links
Landscapes
- 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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の音声信号ミュート回路の構成図、第２図
、第３図は第１図中のａ点、ｂ点の直流電位のタイムチ
ャートである。第４図は本考案回路−の１実施例の回路
構成図、第５図、第６図は第４図中のａ点及びｂ点の直
流電位のタイムチャートである。
主な図番の説明、２・・・信号変換手段、３・・・プリ
アンプ、５・・・調整手段、７・・・ラインアンプ、８
・・・ミュート信号発生源、９・・・スイッチング回路
、１０・・・再生モード信号発生手段、１４・・・付与
回路。FIG. 1 is a block diagram of a conventional audio signal mute circuit, and FIGS. 2 and 3 are time charts of DC potentials at points a and b in FIG. 1. FIG. 4 is a circuit configuration diagram of one embodiment of the circuit of the present invention, and FIGS. 5 and 6 are time charts of the DC potentials at points a and b in FIG. 4. Explanation of main drawing numbers, 2...Signal conversion means, 3...Preamplifier, 5...Adjustment means, 7...Line amplifier, 8
. . . Mute signal generation source, 9 . . . Switching circuit, 10 . . . Reproduction mode signal generation means, 14 .
Claims (1)
号変換手段と、該信号変換手段出力を入力するプリアン
プと、該プリアンプ出力を受は該プリアンプ出力レベル
を調整する手段と、該調整手段出力を受けるラインアン
プと、ミュート信号発生源と、該ミュート信号発生源か
らのミュート信号を受は前記調整手段出力を前記ライン
アンプの前段で交流的に接地するスイッチング回路とを
備えてなる音声信号ミュート回路において、再生モード
時に再生モード信号を発生する手段と、該発生手段出力
を前記調整手段出力の前記スイッチング回路が接続され
る点に付与する回路とを備え、該接続点の直流電位が前
記スイッチング回路の動作モードの転換時に急変しない
ように構成していることを特徴とする音声信号ミュート
回路。“A signal converting means for extracting an audio signal from an audio track or track on a recording medium, a preamplifier inputting the output of the signal converting means, a means for receiving the preamplifier output and adjusting the preamplifier output level, and an output of the adjusting means. an audio signal mute comprising: a line amplifier that receives a mute signal, a mute signal generation source, and a switching circuit that receives the mute signal from the mute signal generation source and connects the output of the adjustment means to alternating current ground at a stage before the line amplifier. The circuit includes means for generating a reproduction mode signal in a reproduction mode, and a circuit for applying the output of the generating means to a point of the output of the adjusting means to which the switching circuit is connected, and the DC potential of the connection point is set to the switching circuit. An audio signal mute circuit characterized in that it is configured so as not to suddenly change when the operating mode of the circuit changes. “
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3339383U JPS59138012U (en) | 1983-03-07 | 1983-03-07 | Audio signal mute circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3339383U JPS59138012U (en) | 1983-03-07 | 1983-03-07 | Audio signal mute circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59138012U true JPS59138012U (en) | 1984-09-14 |
| JPH0320934Y2 JPH0320934Y2 (en) | 1991-05-07 |
Family
ID=30164188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3339383U Granted JPS59138012U (en) | 1983-03-07 | 1983-03-07 | Audio signal mute circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59138012U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57202237U (en) * | 1981-06-18 | 1982-12-23 |
-
1983
- 1983-03-07 JP JP3339383U patent/JPS59138012U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57202237U (en) * | 1981-06-18 | 1982-12-23 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0320934Y2 (en) | 1991-05-07 |
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