JPS58129753U - High cut circuit in AM receiver - Google Patents

High cut circuit in AM receiver

Info

Publication number
JPS58129753U
JPS58129753U JP2825282U JP2825282U JPS58129753U JP S58129753 U JPS58129753 U JP S58129753U JP 2825282 U JP2825282 U JP 2825282U JP 2825282 U JP2825282 U JP 2825282U JP S58129753 U JPS58129753 U JP S58129753U
Authority
JP
Japan
Prior art keywords
cut circuit
receiver
high cut
cut
input signal
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
Application number
JP2825282U
Other languages
Japanese (ja)
Other versions
JPS6333379Y2 (en
Inventor
俊人 市川
Original Assignee
パイオニア株式会社
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 パイオニア株式会社 filed Critical パイオニア株式会社
Priority to JP2825282U priority Critical patent/JPS58129753U/en
Publication of JPS58129753U publication Critical patent/JPS58129753U/en
Application granted granted Critical
Publication of JPS6333379Y2 publication Critical patent/JPS6333379Y2/ja
Granted legal-status Critical Current

Links

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 the drawing]

第１図は、本考案によるハイカット回路を含むＡＭ受信
器の一部を示す回路ブ冶ツク図、第２図はＡＭ受信器に
おけるＡＧＣ電圧の変化特性を示すグラフ、第３図は、
第１図のハイカット回路に含まれているハイカットフィ
ルタ６の周波数特性を示すグラフ、第４図は、第１図の
ハイカット回路の周波数特性を示すグラフである。 主要部分の符号の説明、５，７・・・エミッタフォロワ
増幅段、・６・・・ハイカットフィルタ、８・・・可変
利得増幅回路。FIG. 1 is a circuit block diagram showing a part of an AM receiver including a high-cut circuit according to the present invention, FIG. 2 is a graph showing the change characteristics of AGC voltage in the AM receiver, and FIG.
FIG. 4 is a graph showing the frequency characteristics of the high-cut filter 6 included in the high-cut circuit shown in FIG. 1. FIG. 4 is a graph showing the frequency characteristics of the high-cut filter 6 included in the high-cut circuit shown in FIG. Explanation of symbols of main parts: 5, 7... Emitter follower amplification stage, 6... High cut filter, 8... Variable gain amplifier circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 入力信号レベルに応じて高域カット特性が変化するよう
になされたハイカット回路であって、前記入力信号レベ
ルに応じて利得を変化させつつオーディオ信号を増幅す
る可変利得増幅器を含むことを特徴とするハイカット回
路。A high-cut circuit whose high-frequency cut characteristics change according to the input signal level, characterized by including a variable gain amplifier that amplifies the audio signal while changing the gain according to the input signal level. High cut circuit.
JP2825282U 1982-02-26 1982-02-26 High cut circuit in AM receiver Granted JPS58129753U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2825282U JPS58129753U (en) 1982-02-26 1982-02-26 High cut circuit in AM receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2825282U JPS58129753U (en) 1982-02-26 1982-02-26 High cut circuit in AM receiver

Publications (2)

Publication Number Publication Date
JPS58129753U true JPS58129753U (en) 1983-09-02
JPS6333379Y2 JPS6333379Y2 (en) 1988-09-06

Family

ID=30040114

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2825282U Granted JPS58129753U (en) 1982-02-26 1982-02-26 High cut circuit in AM receiver

Country Status (1)

Country Link
JP (1) JPS58129753U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017129741A (en) * 2016-01-20 2017-07-27 富士通テン株式会社 Noise reduction device and noise reduction method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017129741A (en) * 2016-01-20 2017-07-27 富士通テン株式会社 Noise reduction device and noise reduction method

Also Published As

Publication number Publication date
JPS6333379Y2 (en) 1988-09-06

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