JPS601023U - In-vehicle audio equipment - Google Patents
In-vehicle audio equipmentInfo
- Publication number
- JPS601023U JPS601023U JP9292783U JP9292783U JPS601023U JP S601023 U JPS601023 U JP S601023U JP 9292783 U JP9292783 U JP 9292783U JP 9292783 U JP9292783 U JP 9292783U JP S601023 U JPS601023 U JP S601023U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- volume control
- audio
- volume
- 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
- Control Of Amplification And Gain Control (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図はコンポ・タイプのカー・ステレオの従来例構成
、第２図ＡないしＣは第１図図示従来例におけるノイズ
発生に関する説明図、第３図は従来例構成、第４図Ａな
いしＤは第３図図示構成例におけるノイズ発生に関する
説明図、第５図は本考案の１実施例構成、第６図Ａない
しＣは第５図図示実施例におけるオーディオ信号と音量
制御信号との関係を説明する図を示す。
図中、１は再生ユニット、２は付加機器ユニット、３は
パワー・アンプ・ユニット、４はスピーカ、５は再生ヘ
ッド、６は再生アンプ、７は音量制御部、８は出力アン
プ、９は中間アンプ、１０は最終段アンプ、１１は音量
操作部、１２はオーディオ信号の伝送線、１３は音量制
御信号の伝送線、１４は交流フィルタ、１５は直流フィ
ルタを表わす。Fig. 1 is a conventional configuration of a component type car stereo, Fig. 2 A to C are explanatory diagrams regarding noise generation in the conventional example shown in Fig. 1, Fig. 3 is a conventional configuration, and Figs. 4 A to D is an explanatory diagram regarding noise generation in the configuration example shown in FIG. 3, FIG. 5 is an explanatory diagram of the configuration of one embodiment of the present invention, and FIGS. An illustrative diagram is shown. In the figure, 1 is a playback unit, 2 is an additional equipment unit, 3 is a power amplifier unit, 4 is a speaker, 5 is a playback head, 6 is a playback amplifier, 7 is a volume control section, 8 is an output amplifier, and 9 is an intermediate 10 is a final stage amplifier, 11 is a volume control section, 12 is an audio signal transmission line, 13 is a volume control signal transmission line, 14 is an AC filter, and 15 is a DC filter.
Claims (1)
ンプ・ユニットとをそなえたコンポ・タイプの車載用音
響装置において、上記オーディオ信号再生ユニットから
のオーディオ信号を交流フィルタを介して送出するとと
もに該送出信号に上記オーディオ信号再生ユニットにも
うけられた音量操作部からの音量制御信号を直流フィル
タを介して重畳させる音量制御信号重畳回路部と、該音
量制御信号重畳回路部から送出された重畳信号から直流
フィルタを介して音量制御信号を抽出するとともに、該
抽出された音量制御信号にもとづき−前記重畳信号から
交流フィルタを介して抽出されたオーディオ信号の音量
レベルを制御する音量信号抽出制御回路部とを有するこ
とを特徴とする車載用音響装置。In a component-type in-vehicle audio device equipped with at least an audio signal reproducing unit and a power amplifier unit, the audio signal from the audio signal reproducing unit is sent out via an AC filter, and the audio signal is added to the output signal. A volume control signal superimposition circuit section that superimposes a volume control signal from a volume control section provided in the signal reproduction unit via a DC filter; A volume signal extraction control circuit unit that extracts a volume control signal and controls the volume level of an audio signal extracted from the superimposed signal via an AC filter based on the extracted volume control signal. This is an in-vehicle audio system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9292783U JPS601023U (en) | 1983-06-17 | 1983-06-17 | In-vehicle audio equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9292783U JPS601023U (en) | 1983-06-17 | 1983-06-17 | In-vehicle audio equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS601023U true JPS601023U (en) | 1985-01-07 |
| JPH0230901Y2 JPH0230901Y2 (en) | 1990-08-21 |
Family
ID=30223388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9292783U Granted JPS601023U (en) | 1983-06-17 | 1983-06-17 | In-vehicle audio equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS601023U (en) |
-
1983
- 1983-06-17 JP JP9292783U patent/JPS601023U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0230901Y2 (en) | 1990-08-21 |
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