JPS6121124U - Sound quality adjustment circuit - Google Patents

Sound quality adjustment circuit

Info

Publication number
JPS6121124U
JPS6121124U JP10419284U JP10419284U JPS6121124U JP S6121124 U JPS6121124 U JP S6121124U JP 10419284 U JP10419284 U JP 10419284U JP 10419284 U JP10419284 U JP 10419284U JP S6121124 U JPS6121124 U JP S6121124U
Authority
JP
Japan
Prior art keywords
input terminal
sound quality
quality adjustment
adjustment circuit
filter
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
Application number
JP10419284U
Other languages
Japanese (ja)
Inventor
利仁 澤井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Denso Ten Ltd
Original Assignee
Denso Ten Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Denso Ten Ltd filed Critical Denso Ten Ltd
Priority to JP10419284U priority Critical patent/JPS6121124U/en
Publication of JPS6121124U publication Critical patent/JPS6121124U/en
Pending legal-status Critical Current

Links

Landscapes

  • Tone Control, Compression And Expansion, Limiting Amplitude (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

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案の概要を示す構成図、第２図はその周波
数特性図、第３図はワンタッチ選択する周波数パターン
の特性図、第４図は本考案の一実施例を示す構成図、第
５図は従来の上一ン回路の一例を示す構成図、第６図は
その周波数特性図である。 図中、Ａ１は演算増幅器、Ｒ２はその帰還抵抗、Ｆｔ，
，ＦＢＩはバンドパスフィルタ、ＳＷ１，ＳＷ２はフィ
ルタ接離スイッチ、ＳＷａ〜ＳＷｄは特性選択スイッチ
、ＬＡはーラツ≠回路、Ｄはダイオード回路である。Fig. 1 is a block diagram showing an overview of the present invention, Fig. 2 is a frequency characteristic diagram thereof, Fig. 3 is a characteristic diagram of a frequency pattern selected by one touch, and Fig. 4 is a block diagram showing an embodiment of the present invention. FIG. 5 is a configuration diagram showing an example of a conventional upper-input circuit, and FIG. 6 is a frequency characteristic diagram thereof. In the figure, A1 is an operational amplifier, R2 is its feedback resistance, Ft,
, FBI are band pass filters, SW1 and SW2 are filter connection/disconnection switches, SWa to SWd are characteristic selection switches, LA is a circuit, and D is a diode circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] オーディオ信号を一方の入力端子に受けてその増幅出力
を抵抗を通して他方の入力端子に負帰還する演算増幅器
と、該他方の入力端子と地気間に接続されたバンドパス
フィルタおよびフィルタ接、離スイッチからなる２系統
の利得調整回路とを備え、一方のバンドパスフィルタを
約１００ＨＺを中心とした低域強調用に設定すると共に
、他方のバンドパスフィルタを高城強調用に設定し、さ
らに該２つのフィルタ接離スイッチのオン、オフを４通
りに組合せる回路およびそのいずれか１つを指定する４
個の特性選択スイッチを設けてなることを特徴とする音
質調整回路。An operational amplifier that receives an audio signal at one input terminal and negatively feeds its amplified output through a resistor to the other input terminal, a bandpass filter connected between the other input terminal and the earth, and a filter connection/disconnection switch. One band-pass filter is set to emphasize low frequencies centered around 100Hz, the other band-pass filter is set to emphasize Takagi, and the two A circuit that combines the on/off of the filter connection/disconnection switch in four ways, and one of them 4.
A sound quality adjustment circuit comprising a characteristic selection switch.
JP10419284U 1984-07-10 1984-07-10 Sound quality adjustment circuit Pending JPS6121124U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10419284U JPS6121124U (en) 1984-07-10 1984-07-10 Sound quality adjustment circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10419284U JPS6121124U (en) 1984-07-10 1984-07-10 Sound quality adjustment circuit

Publications (1)

Publication Number Publication Date
JPS6121124U true JPS6121124U (en) 1986-02-07

Family

ID=30663548

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10419284U Pending JPS6121124U (en) 1984-07-10 1984-07-10 Sound quality adjustment circuit

Country Status (1)

Country Link
JP (1) JPS6121124U (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5947819A (en) * 1982-09-10 1984-03-17 Fujitsu Ten Ltd Graphic equalizer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5947819A (en) * 1982-09-10 1984-03-17 Fujitsu Ten Ltd Graphic equalizer

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