JPS5868747U - AM interference wave detection circuit - Google Patents
AM interference wave detection circuitInfo
- Publication number
- JPS5868747U JPS5868747U JP16259181U JP16259181U JPS5868747U JP S5868747 U JPS5868747 U JP S5868747U JP 16259181 U JP16259181 U JP 16259181U JP 16259181 U JP16259181 U JP 16259181U JP S5868747 U JPS5868747 U JP S5868747U
- Authority
- JP
- Japan
- Prior art keywords
- detection circuit
- interference wave
- wave detection
- limiter
- phase
- 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
- 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ＡＭ受信機の帯域切換えに利用した本考案によ
るＡＭ妨害波検出回路の一実施例を示すブロック図、及
び第２図は第１図の回路の一部分の動作を説明するため
のグラフである。 □１・・・周波数変換回路、
８ｂ・・・リミッタ、８Ｃ・・・位相検波回路。FIG. 1 is a block diagram showing an embodiment of an AM interference detection circuit according to the present invention used for band switching of an AM receiver, and FIG. 2 is a graph for explaining the operation of a portion of the circuit shown in FIG. It is. □1...Frequency conversion circuit,
8b...limiter, 8C...phase detection circuit.
Claims (1)
振幅成分を除去するリミッタと、このリミ゛ツタの出力
に得られる信号を位相検波する位相検波回路とを備え、
前記位相検波回路の検波出力の有無により妨害波の有無
を検出するようにしたＡＭ妨害波検出回路。、A limiter that removes the amplitude component from an intermediate frequency signal obtained by frequency converting an AM received signal, and a phase detection circuit that detects the phase of the signal obtained from the output of the limiter,
An AM interference wave detection circuit configured to detect the presence or absence of an interference wave based on the presence or absence of a detection output of the phase detection circuit. ,
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16259181U JPS5868747U (en) | 1981-11-02 | 1981-11-02 | AM interference wave detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16259181U JPS5868747U (en) | 1981-11-02 | 1981-11-02 | AM interference wave detection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5868747U true JPS5868747U (en) | 1983-05-10 |
Family
ID=29954900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16259181U Pending JPS5868747U (en) | 1981-11-02 | 1981-11-02 | AM interference wave detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5868747U (en) |
-
1981
- 1981-11-02 JP JP16259181U patent/JPS5868747U/en active Pending
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