JPS6037949U - radio receiver - Google Patents

radio receiver

Info

Publication number
JPS6037949U
JPS6037949U JP13004683U JP13004683U JPS6037949U JP S6037949 U JPS6037949 U JP S6037949U JP 13004683 U JP13004683 U JP 13004683U JP 13004683 U JP13004683 U JP 13004683U JP S6037949 U JPS6037949 U JP S6037949U
Authority
JP
Japan
Prior art keywords
circuit
radio receiver
frequency
control signal
sensitivity
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
JP13004683U
Other languages
Japanese (ja)
Other versions
JPH0124990Y2 (en
Inventor
今川　敏幸
Original Assignee
クラリオン株式会社
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 クラリオン株式会社 filed Critical クラリオン株式会社
Priority to JP13004683U priority Critical patent/JPS6037949U/en
Publication of JPS6037949U publication Critical patent/JPS6037949U/en
Application granted granted Critical
Publication of JPH0124990Y2 publication Critical patent/JPH0124990Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Control Of Amplification And Gain Control (AREA)
  • Circuits Of Receivers In General (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、従来の高周波増幅回路を示す回路図、第２図
は、受信周波数と相対感度の関係を示す線図、第３図は
本考案の実施例に係るＰＬＬ式電子同調ＡＭ受信機を示
す回路図、第４図は、第３図の一部に係る低域通過フィ
ルタの周波数・出力電圧特性を示す線図、第５図は、他
の実施例を示す回路図である。 １１・・・・・・高周波増幅回路、１４，１４Ａ・・・
・・・感度調整回路の要部としてのトランジスタ、１６
・・・・・・同調回路、１８・・・・・・感度調整回路
、２３・・・・・・電圧制御発振器、２４・・・・・・
プログラマブル・カウンタ、２５・・・・・・位相検波
器、２６・・・・・・低域通過フィルタ。Fig. 1 is a circuit diagram showing a conventional high frequency amplification circuit, Fig. 2 is a diagram showing the relationship between reception frequency and relative sensitivity, and Fig. 3 is a PLL type electronically tuned AM receiver according to an embodiment of the present invention. FIG. 4 is a diagram showing the frequency/output voltage characteristics of the low-pass filter according to a part of FIG. 3, and FIG. 5 is a circuit diagram showing another embodiment. 11... High frequency amplifier circuit, 14, 14A...
...Transistor as the main part of the sensitivity adjustment circuit, 16
...Tuning circuit, 18...Sensitivity adjustment circuit, 23...Voltage controlled oscillator, 24...
Programmable counter, 25... phase detector, 26... low pass filter.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 周波数に関連する制御信号を印加して共振回路の回路定
数を変え電子同調を行なうラジオ受信機に於て、このラ
ジオ受信機の増幅回路に増幅利得を可変する感度調整回
路を設け、この感度調整回路を前記周波数に関連する制
御信号で制御し、受信帯域内の感度が略一定となるよう
に調整することを特徴としたラジオ受信機。In a radio receiver that applies a frequency-related control signal to change the circuit constant of a resonant circuit and perform electronic tuning, the amplifier circuit of the radio receiver is equipped with a sensitivity adjustment circuit that varies the amplification gain, and this sensitivity adjustment is performed. A radio receiver characterized in that a circuit is controlled by a control signal related to the frequency, and the sensitivity within the reception band is adjusted to be substantially constant.
JP13004683U 1983-08-23 1983-08-23 radio receiver Granted JPS6037949U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13004683U JPS6037949U (en) 1983-08-23 1983-08-23 radio receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13004683U JPS6037949U (en) 1983-08-23 1983-08-23 radio receiver

Publications (2)

Publication Number Publication Date
JPS6037949U true JPS6037949U (en) 1985-03-15
JPH0124990Y2 JPH0124990Y2 (en) 1989-07-27

Family

ID=30294469

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13004683U Granted JPS6037949U (en) 1983-08-23 1983-08-23 radio receiver

Country Status (1)

Country Link
JP (1) JPS6037949U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62154113U (en) * 1986-03-24 1987-09-30
JPS63104556U (en) * 1986-12-25 1988-07-06

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62154113U (en) * 1986-03-24 1987-09-30
JPH0330516Y2 (en) * 1986-03-24 1991-06-27
JPS63104556U (en) * 1986-12-25 1988-07-06

Also Published As

Publication number Publication date
JPH0124990Y2 (en) 1989-07-27

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