JPH0186311U - - Google Patents
Info
- Publication number
- JPH0186311U JPH0186311U JP18038487U JP18038487U JPH0186311U JP H0186311 U JPH0186311 U JP H0186311U JP 18038487 U JP18038487 U JP 18038487U JP 18038487 U JP18038487 U JP 18038487U JP H0186311 U JPH0186311 U JP H0186311U
- Authority
- JP
- Japan
- Prior art keywords
- audio
- audio signal
- selection circuit
- circuit
- input
- 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 12
- 230000003321 amplification Effects 0.000 claims description 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
- Control Of Amplification And Gain Control (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Description
第１図は本考案によるオーデイオ信号増幅装置
の一実施例を示すブロツク図、第２図は従来装置
を示すブロツク図である。
３……フラツト増幅回路、４……ボリユーム調
整回路、５……メイン増幅回路、６……スピーカ
装置、２１，２２……切換回路、ＰＨＤ……レコ
ードプレーヤ対応の入力端子、ＴＵＮ……チユー
ナ対応の入力端子、ＡＴＲ……オーデイオテープ
レコーダ対応の入力端子、ＣＤ……コンパクトデ
イスクプレーヤ対応の入力端子。
FIG. 1 is a block diagram showing an embodiment of an audio signal amplification device according to the present invention, and FIG. 2 is a block diagram showing a conventional device. 3... Flat amplifier circuit, 4... Volume adjustment circuit, 5... Main amplifier circuit, 6... Speaker device, 21, 22... Switching circuit, PHD... Input terminal compatible with record player, TUN... Compatible with tuner. ATR: Input terminal compatible with audio tape recorder, CD: Input terminal compatible with compact disc player.
Claims (1)
オ信号が入力される複数のアナログオーデイオ機
器用入力端子と、 デジタルオーデイオ機器からのオーデイオ信号
が入力される少なくとも１つ以上のデジタルオー
デイオ機器用入力端子と、 上記複数のアナログオーデイオ機器用入力端子
からのオーデイオ信号のいずれかを選択させる第
１の選択回路と、 当該第１の選択回路によつて選択された上記オ
ーデイオ信号及び／又は上記デジタルオーデイオ
機器用入力端子からのオーデイオ信号を、上記第
１の選択回路を介したオーデイオ信号レベルが上
記デジタルオーデイオ機器用入力端子からのオー
デイオ信号レベルに等しくなるように増幅する前
置増幅回路と、 当該前置増幅回路を介した上記第１の選択回路
からのオーデイオ信号及び上記デジタルオーデイ
オ機器用入力端子からのオーデイオ信号のいずれ
かを選択してボリユーム調整回路に与える第２の
選択回路とを備えたことを特徴とするオーデイオ
信号増幅装置。[Claims for Utility Model Registration] A plurality of analog audio device input terminals into which audio signals from a plurality of analog audio devices are input, and at least one digital audio device into which audio signals from a digital audio device are input. a first selection circuit that selects one of the audio signals from the plurality of analog audio device input terminals; and the audio signal selected by the first selection circuit and/or the audio signal selected by the first selection circuit. a preamplifier circuit that amplifies the audio signal from the input terminal for digital audio equipment so that the audio signal level passed through the first selection circuit is equal to the audio signal level from the input terminal for digital audio equipment; a second selection circuit that selects either the audio signal from the first selection circuit via the preamplifier circuit or the audio signal from the input terminal for the digital audio device and supplies the selected one to the volume adjustment circuit; An audio signal amplification device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18038487U JPH0186311U (en) | 1987-11-26 | 1987-11-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18038487U JPH0186311U (en) | 1987-11-26 | 1987-11-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0186311U true JPH0186311U (en) | 1989-06-07 |
Family
ID=31471905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18038487U Pending JPH0186311U (en) | 1987-11-26 | 1987-11-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0186311U (en) |
-
1987
- 1987-11-26 JP JP18038487U patent/JPH0186311U/ja active Pending
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