JPS6310623U - - Google Patents
Info
- Publication number
- JPS6310623U JPS6310623U JP10480686U JP10480686U JPS6310623U JP S6310623 U JPS6310623 U JP S6310623U JP 10480686 U JP10480686 U JP 10480686U JP 10480686 U JP10480686 U JP 10480686U JP S6310623 U JPS6310623 U JP S6310623U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- frequency selection
- sound quality
- quality adjustment
- relatively wide
- 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
- 239000004065 semiconductor Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
Description
第１図及び第２図はそれぞれこの考案実施例の
音質調整回路図、第３図及び第４図はそれぞれ第
１図及び第２図の回路の周波数特性図、第５図は
従来の音質調整回路図、第６図は第５図の回路の
周波数特性図である。
Figures 1 and 2 are sound quality adjustment circuit diagrams of the embodiment of this invention, Figures 3 and 4 are frequency characteristic diagrams of the circuits shown in Figures 1 and 2, respectively, and Figure 5 is a conventional sound quality adjustment circuit. The circuit diagram, FIG. 6, is a frequency characteristic diagram of the circuit of FIG.
Claims (1)
還端に可変抵抗器と周波数選択特性を有する回路
の直列接続構成が複数組並列に接続された音質調
整回路において、前記周波数選択特性を有する回
路は少なくとも共振鋭度の比較的高い低域選択特
性を有する回路と、第１の比較的広帯域の高域選
択特性を有する回路を含み、かつ第２の比較的広
帯域の高域選択特性を有する回路を具備し、当該
選択特性を有する回路を前記低域選択特性を有す
る回路とこれに対応した可変抵抗器の接続点に選
択的に並列的接続せしめるスイツチを具備してな
ることを特徴とする音質調整回路。 (2) 前記比較的広帯域の高域選択特性を有する
回路は共振鋭度の比較的低い半導体インダクタ共
振回路であることを特徴とする実用新案登録請求
の範囲第１項記載の音質調整回路。 (3) 前記比較的広帯域の高域選択特性を有する
回路はＣＲ型ハイパスフイルタであることを特徴
とする実用新案登録請求の範囲第１項記載の音質
調整回路。[Claims for Utility Model Registration] (1) In a sound quality adjustment circuit in which a plurality of series connection configurations of a variable resistor and a circuit having frequency selection characteristics are connected in parallel to the feedback terminal of an operational amplifier constituting a negative feedback amplifier circuit. , the circuit having frequency selection characteristics includes at least a circuit having a low frequency selection characteristic with a relatively high resonance sharpness, a first circuit having a relatively wide band high frequency selection characteristic, and a second circuit having a relatively wide frequency selection characteristic; a circuit having high frequency selection characteristics, and a switch for selectively connecting the circuit having the selection characteristics in parallel to the connection point of the circuit having low frequency selection characteristics and the corresponding variable resistor. A sound quality adjustment circuit characterized by: (2) The sound quality adjustment circuit according to claim 1, wherein the circuit having a relatively wide band high frequency selection characteristic is a semiconductor inductor resonant circuit with a relatively low resonance sharpness. (3) The sound quality adjustment circuit according to claim 1, wherein the circuit having relatively wide-band high-frequency selection characteristics is a CR-type high-pass filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10480686U JPS6310623U (en) | 1986-07-08 | 1986-07-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10480686U JPS6310623U (en) | 1986-07-08 | 1986-07-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6310623U true JPS6310623U (en) | 1988-01-23 |
Family
ID=30978641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10480686U Pending JPS6310623U (en) | 1986-07-08 | 1986-07-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6310623U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0356217U (en) * | 1989-10-03 | 1991-05-30 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6148211A (en) * | 1984-08-15 | 1986-03-08 | Matsushita Electric Ind Co Ltd | Sound quality adjusting circuit |
-
1986
- 1986-07-08 JP JP10480686U patent/JPS6310623U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6148211A (en) * | 1984-08-15 | 1986-03-08 | Matsushita Electric Ind Co Ltd | Sound quality adjusting circuit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0356217U (en) * | 1989-10-03 | 1991-05-30 |
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