JPS617143U - radio receiver - Google Patents
radio receiverInfo
- Publication number
- JPS617143U JPS617143U JP9094684U JP9094684U JPS617143U JP S617143 U JPS617143 U JP S617143U JP 9094684 U JP9094684 U JP 9094684U JP 9094684 U JP9094684 U JP 9094684U JP S617143 U JPS617143 U JP S617143U
- Authority
- JP
- Japan
- Prior art keywords
- intermediate frequency
- radio receiver
- amplification circuit
- detector
- frequency amplification
- 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
Links
Landscapes
- Superheterodyne Receivers (AREA)
- Noise Elimination (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
第１図は本考案にかかるラジオ受信機のブロック図、第
２図は杢考案にかかるラジオ受信機の実施例ブロック図
である６
１１・・・・・・チューナ、１２・・・・・・中間周波
増幅回路、１３・・・・・・検波器、１５ａ，１５ｂ・
・・・・・中間周波フィルタ、１６・・・・・・切替回
路、１７・・・・・・ＰＬＬ回路、１８０●…コントロ
ールユニット。Fig. 1 is a block diagram of a radio receiver according to the present invention, and Fig. 2 is a block diagram of an embodiment of the radio receiver according to the invention. Intermediate frequency amplification circuit, 13...Detector, 15a, 15b.
...Intermediate frequency filter, 16...Switching circuit, 17...PLL circuit, 180●...Control unit.
Claims (1)
間周波増幅回路と検波器とめ間に設けられた中心周波数
が異なる２つの中間周波フィルタと、中間周波数増幅回
路の出力を所定の中間周波フィルタを介して検波器に入
力する切替回路と、笛音妨害が発生する状態にあるかど
うかを判別し、判別結果に基づいて前記切替回路をして
所定の中間周波フィルタを選択させるコントロールユニ
ットを具備することを特徴とするラジオ受信機。[Scope of claim for utility model registration] Tuner section, intermediate frequency amplification circuit, and detector. In an electronically tuned radio receiver having: (1) two intermediate frequency filters with different center frequencies provided between the intermediate frequency amplification circuit and the detector, and the output of the intermediate frequency amplification circuit being passed through a predetermined intermediate frequency filter; and a control unit that determines whether or not whistle noise interference is occurring and causes the switching circuit to select a predetermined intermediate frequency filter based on the determination result. A radio receiver characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9094684U JPS617143U (en) | 1984-06-19 | 1984-06-19 | radio receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9094684U JPS617143U (en) | 1984-06-19 | 1984-06-19 | radio receiver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS617143U true JPS617143U (en) | 1986-01-17 |
| JPH028446Y2 JPH028446Y2 (en) | 1990-02-28 |
Family
ID=30646400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9094684U Granted JPS617143U (en) | 1984-06-19 | 1984-06-19 | radio receiver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS617143U (en) |
-
1984
- 1984-06-19 JP JP9094684U patent/JPS617143U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH028446Y2 (en) | 1990-02-28 |
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