JPH0277925U - - Google Patents
Info
- Publication number
- JPH0277925U JPH0277925U JP15727688U JP15727688U JPH0277925U JP H0277925 U JPH0277925 U JP H0277925U JP 15727688 U JP15727688 U JP 15727688U JP 15727688 U JP15727688 U JP 15727688U JP H0277925 U JPH0277925 U JP H0277925U
- Authority
- JP
- Japan
- Prior art keywords
- radio receiver
- control circuit
- volume control
- intermediate frequency
- strength 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.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims description 2
- 230000005684 electric field Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Circuits Of Receivers In General (AREA)
- Noise Elimination (AREA)
Description
第1図は本考案の一実施例を示す要部ブロツク
図、第2図は本考案の特性図、第3図は電界強度
信号の説明図、第4図は音量制御回路の具体例を
示す図、第5図は従来のFMラジオ受信機の部分
ブロツク図、第6図は従来のFMラジオ受信機の
特性図である。
図中、41〜43は中間周波増幅器、5は検波
回路、8は音量制御回路である。
Fig. 1 is a block diagram of main parts showing an embodiment of the present invention, Fig. 2 is a characteristic diagram of the invention, Fig. 3 is an explanatory diagram of an electric field strength signal, and Fig. 4 shows a specific example of a volume control circuit. 5 is a partial block diagram of a conventional FM radio receiver, and FIG. 6 is a characteristic diagram of the conventional FM radio receiver. In the figure, 41 to 43 are intermediate frequency amplifiers, 5 is a detection circuit, and 8 is a volume control circuit.
Claims (1)
を用いてFM検波回路5より後段のオーデイオレ
ベルを制御する音量制御回路8を設け、弱電界時
には該音量制御回路8の減衰量を増大させるよう
にしてなることを特徴とするFMラジオ受信機。 Field strength signal S obtained from intermediate frequency amplifier 4
The FM radio receiver is characterized in that a volume control circuit 8 is provided to control the audio level at a stage subsequent to the FM detection circuit 5 using the FM radio receiver, and the attenuation amount of the volume control circuit 8 is increased in the case of a weak electric field.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15727688U JPH0277925U (en) | 1988-12-02 | 1988-12-02 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15727688U JPH0277925U (en) | 1988-12-02 | 1988-12-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0277925U true JPH0277925U (en) | 1990-06-14 |
Family
ID=31436579
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15727688U Pending JPH0277925U (en) | 1988-12-02 | 1988-12-02 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0277925U (en) |
-
1988
- 1988-12-02 JP JP15727688U patent/JPH0277925U/ja active Pending
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