JPH0193821U - - Google Patents
Info
- Publication number
- JPH0193821U JPH0193821U JP18935187U JP18935187U JPH0193821U JP H0193821 U JPH0193821 U JP H0193821U JP 18935187 U JP18935187 U JP 18935187U JP 18935187 U JP18935187 U JP 18935187U JP H0193821 U JPH0193821 U JP H0193821U
- Authority
- JP
- Japan
- Prior art keywords
- circuits
- amplifiers
- circuit
- variable resistor
- sound quality
- 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
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Amplifiers (AREA)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
Description
第１図は本考案のグラフイツクイコライザによ
る音質調整回路の一実施例を示す回路図、第２図
は従来のグラフイツクイコライザーで１つの回路
を単独で調整する音質調整回路を示す回路図、第
３図は従来のグラフイツクイコライザーで２つの
回路を連動して調整する音質調整回路の回路図、
第４図は第２図における出力周波数特性を示す説
明図である。
ＶＲ１〜ＶＲ２３…可変抵抗器、Ａ１１，Ａ２
１…増幅器、ＳＷ１…切換スイツチ、Ｆ１１〜Ｆ
２３…直列共振回路、Ｒ１１，Ｒ２１…入力抵抗
、Ｒ１２，Ｒ２２…帰還抵抗。
Fig. 1 is a circuit diagram showing an embodiment of a sound quality adjustment circuit using the graphical equalizer of the present invention, and Fig. 2 is a circuit diagram showing a sound quality adjustment circuit that adjusts one circuit independently using a conventional graphic equalizer. Figure 3 is a circuit diagram of a sound quality adjustment circuit that adjusts two circuits in conjunction with a conventional graphic equalizer.
FIG. 4 is an explanatory diagram showing the output frequency characteristics in FIG. 2. VR 1 to VR 23 ... variable resistor, A 11 , A 2
1 ... Amplifier, SW1... Changeover switch, F 11 ~F
23 ...Series resonant circuit, R11 , R21 ...Input resistance, R12 , R22 ...Feedback resistance.
Claims (1)
る複数の可変抵抗器ＶＲ１〜ＶＲ２３、複数の直
列共振回路Ｆ１１〜Ｆ２３と、前記の半数の直列
共振回路Ｆ２１〜Ｆ２３の前記可変抵抗器ＶＲ１
〜ＶＲ２３への接続を切換えるスイツチＳＷ１と
、で複数の回路を構成して成る音質調整回路にお
いて、 前記スイツチＳＷ１により、可変抵抗器ＶＲ１
〜ＶＲ２３と半数の直列共振回路Ｆ２１〜Ｆ２３
との接続を切換えることにより、それぞれの可変
抵抗器ＶＲ１〜ＶＲ２３が単数の増幅器（Ａ１１
又はＡ２１）の出力周波数を独立して調整する回
路と、特定の可変抵抗器ＶＲ１〜ＶＲ３が複数の
増幅器Ａ１１，Ａ２１の出力周波数を共に調整す
る回路とに切換わることを特徴とする音質調整回
路。[Claims for Utility Model Registration] Amplifiers A 11 and A 21 , a plurality of variable resistors VR 1 to VR 23 acting on the amplifiers, a plurality of series resonant circuits F 11 to F 23 , and half of the series resonance circuits. Said variable resistor VR 1 of circuits F 21 to F 23
~ In a sound quality adjustment circuit constituted by a plurality of circuits, including a switch SW1 for switching the connection to the VR 23 , the switch SW1 switches the connection to the variable resistor VR 1.
~VR 23 and half the series resonant circuit F21 ~ F23
By switching the connections with the variable resistors VR 1 to VR 23, each variable resistor VR 1 to VR 23 can be connected to a single amplifier (A 11
or A 21 ), and a circuit in which the specific variable resistors VR 1 to VR 3 adjust the output frequencies of the plurality of amplifiers A 11 and A 21 together. Sound quality adjustment circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18935187U JPH0641384Y2 (en) | 1987-12-11 | 1987-12-11 | Sound quality adjustment circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18935187U JPH0641384Y2 (en) | 1987-12-11 | 1987-12-11 | Sound quality adjustment circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0193821U true JPH0193821U (en) | 1989-06-20 |
| JPH0641384Y2 JPH0641384Y2 (en) | 1994-10-26 |
Family
ID=31480387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18935187U Expired - Lifetime JPH0641384Y2 (en) | 1987-12-11 | 1987-12-11 | Sound quality adjustment circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0641384Y2 (en) |
-
1987
- 1987-12-11 JP JP18935187U patent/JPH0641384Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0641384Y2 (en) | 1994-10-26 |
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