JPS6411017U - - Google Patents
Info
- Publication number
- JPS6411017U JPS6411017U JP10489487U JP10489487U JPS6411017U JP S6411017 U JPS6411017 U JP S6411017U JP 10489487 U JP10489487 U JP 10489487U JP 10489487 U JP10489487 U JP 10489487U JP S6411017 U JPS6411017 U JP S6411017U
- Authority
- JP
- Japan
- Prior art keywords
- resistor
- negative feedback
- terminal
- signal level
- level boosting
- 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 1
Landscapes
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
Description
第１図に示した回路は、本考案の音質補正回路
の一実施例、第２図は従来の音質補正回路である
。
主な図番の説明、１９……増幅回路、２１……
入力端子、２２……帰還端子、２３……第１抵抗
、２４……可変抵抗器、２５……第２抵抗、２６
……直列共振回路、２７……摺動子、３１……負
帰還用抵抗、３２……出力端子、３３……信号レ
ベル増強用スイツチ、３４……スイツチングトラ
ンジスター。
The circuit shown in FIG. 1 is an embodiment of the sound quality correction circuit of the present invention, and the circuit shown in FIG. 2 is a conventional sound quality correction circuit. Explanation of main drawing numbers, 19... Amplifier circuit, 21...
Input terminal, 22... Feedback terminal, 23... First resistor, 24... Variable resistor, 25... Second resistor, 26
...Series resonant circuit, 27...Slider, 31...Negative feedback resistor, 32...Output terminal, 33...Signal level enhancement switch, 34...Switching transistor.
Claims (1)
端子及び負帰還端子を有する増幅回路と、前記入
力端子と負帰還端子との間に直列に接続された第
１抵抗、可変抵抗器及び第２抵抗と、前記可変抵
抗器を構成する摺動子と接地間に接続されている
直列共振回路と、前記増幅回路の出力端子と負帰
還端子との間に接続されている負帰還用抵抗と、
信号レベルの増強操作時閉成される信号レベル増
強用スイツチと、該信号レベル増強用スイツチが
閉成されているとき導通状態になると共に前記第
２抵抗の両端を少なくとも交流的に短絡するスイ
ツチング素子とより成る音質補正回路。 an amplifier circuit having an input terminal and a negative feedback terminal to which an audio signal is applied through a resistor; a first resistor, a variable resistor, and a second resistor connected in series between the input terminal and the negative feedback terminal; a series resonant circuit connected between a slider constituting a variable resistor and ground; a negative feedback resistor connected between an output terminal and a negative feedback terminal of the amplifier circuit;
A signal level boosting switch that is closed during a signal level boosting operation, and a switching element that becomes conductive when the signal level boosting switch is closed and shorts both ends of the second resistor at least AC-wise. A sound quality correction circuit consisting of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10489487U JPS6411017U (en) | 1987-07-08 | 1987-07-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10489487U JPS6411017U (en) | 1987-07-08 | 1987-07-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6411017U true JPS6411017U (en) | 1989-01-20 |
Family
ID=31337020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10489487U Pending JPS6411017U (en) | 1987-07-08 | 1987-07-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6411017U (en) |
-
1987
- 1987-07-08 JP JP10489487U patent/JPS6411017U/ja active Pending
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