JPS58147329U - Tuning display circuit in radio receiver - Google Patents
Tuning display circuit in radio receiverInfo
- Publication number
- JPS58147329U JPS58147329U JP4190382U JP4190382U JPS58147329U JP S58147329 U JPS58147329 U JP S58147329U JP 4190382 U JP4190382 U JP 4190382U JP 4190382 U JP4190382 U JP 4190382U JP S58147329 U JPS58147329 U JP S58147329U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- output
- radio receiver
- tuning display
- band selection
- 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
Landscapes
- 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
第１図は従来のラジオ受信機における同調表示回路例を
示すブロック図、及び第２図は本考案の一実施例を一部
具体的回路で示すブロック図である。
１１・・・周波数変換回路、１４・・・・・・広帯域選
択回路、１５・・・・・・狭帯域選択回路、１６・・！
■Ｆアンプ、１８・・・レベル検出回路、Ｄ１〜Ｄ４・
・・スイッチングダイオード。FIG. 1 is a block diagram showing an example of a tuning display circuit in a conventional radio receiver, and FIG. 2 is a block diagram showing a partially specific circuit of an embodiment of the present invention. 11... Frequency conversion circuit, 14... Broadband selection circuit, 15... Narrowband selection circuit, 16...!
■F amplifier, 18... Level detection circuit, D1-D4.
...Switching diode.
Claims (1)
路と狭帯域選択回路との入出力をそれぞれ切換スイッチ
を介して選択的に接続しうるようになしたラジオ受信機
において、前記周波数変換回路の出力を抵抗を介して前
記狭帯域選択回路の入力に接続すると共に、前記狭帯域
選択回路の出力の一部を分岐してレベル検出回路に入力
し、このレベル検出回路の出力により同調表示を行うよ
うにしたことを特徴とする同調表示回路。In a radio receiver in which the input and output of a wide band selection circuit and a narrow band selection circuit can be selectively connected between a frequency conversion circuit and an intermediate frequency amplifier via respective changeover switches, the frequency conversion circuit comprises: The output is connected to the input of the narrow band selection circuit via a resistor, and a part of the output of the narrow band selection circuit is branched and input to a level detection circuit, and a tuning display is performed by the output of this level detection circuit. A tuning display circuit characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4190382U JPS58147329U (en) | 1982-03-26 | 1982-03-26 | Tuning display circuit in radio receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4190382U JPS58147329U (en) | 1982-03-26 | 1982-03-26 | Tuning display circuit in radio receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58147329U true JPS58147329U (en) | 1983-10-04 |
Family
ID=30053073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4190382U Pending JPS58147329U (en) | 1982-03-26 | 1982-03-26 | Tuning display circuit in radio receiver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58147329U (en) |
-
1982
- 1982-03-26 JP JP4190382U patent/JPS58147329U/en active Pending
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