JPS5978742U - FM receiver - Google Patents
FM receiverInfo
- Publication number
- JPS5978742U JPS5978742U JP17430782U JP17430782U JPS5978742U JP S5978742 U JPS5978742 U JP S5978742U JP 17430782 U JP17430782 U JP 17430782U JP 17430782 U JP17430782 U JP 17430782U JP S5978742 U JPS5978742 U JP S5978742U
- Authority
- JP
- Japan
- Prior art keywords
- minimum value
- detection means
- voltage
- component
- control voltage
- 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
- 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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来例を示すブロック図、第２図は本考案の一
実施例を示すブロック図、第３図及び第４図は第２図の
実施例の動作を説明するための波形図である。Fig. 1 is a block diagram showing a conventional example, Fig. 2 is a block diagram showing an embodiment of the present invention, and Figs. 3 and 4 are waveform diagrams for explaining the operation of the embodiment of Fig. 2. be.
Claims (1)
制御電圧により同調周波数が可変でき、アンテナからの
入力信号中の前記同調周波数の成分をトラップするトラ
ップ回路と、このトラップ回路の同調周波数を所定範囲
でスイープする前記制御電圧を発生するスイープ電圧発
生手段と、前記フロントエンドの出力信号中のＡＭ成分
を検出するＡＭ検波手段と、このＡＭ検波手段により検
出したＡＭ成分のレベルの最小値を検出する最小値検出
手段と、この最小値検出手段による最小値の検出に前記
スイープ電圧発生手段が発生している電圧と等しい値の
電圧を前記トラップ回路に前記制御電圧として印加する
手段とを備えることを特徴とするＦＭ受信装置。A trap circuit is provided between the antenna and the front end, and the tuning frequency can be varied by the applied control voltage, and traps the component of the tuning frequency in the input signal from the antenna. a sweep voltage generating means for generating the control voltage swept by the front end; an AM detection means for detecting an AM component in the output signal of the front end; and a minimum value of the level of the AM component detected by the AM detection means. A minimum value detection means, and means for applying a voltage equal to the voltage generated by the sweep voltage generation means to the trap circuit as the control voltage when the minimum value detection means detects the minimum value. Features of FM receiving device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17430782U JPS5978742U (en) | 1982-11-19 | 1982-11-19 | FM receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17430782U JPS5978742U (en) | 1982-11-19 | 1982-11-19 | FM receiver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5978742U true JPS5978742U (en) | 1984-05-28 |
| JPS6314508Y2 JPS6314508Y2 (en) | 1988-04-22 |
Family
ID=30379504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17430782U Granted JPS5978742U (en) | 1982-11-19 | 1982-11-19 | FM receiver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5978742U (en) |
-
1982
- 1982-11-19 JP JP17430782U patent/JPS5978742U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6314508Y2 (en) | 1988-04-22 |
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