JPS59187250U - Multipath noise suppression device - Google Patents
Multipath noise suppression deviceInfo
- Publication number
- JPS59187250U JPS59187250U JP7894783U JP7894783U JPS59187250U JP S59187250 U JPS59187250 U JP S59187250U JP 7894783 U JP7894783 U JP 7894783U JP 7894783 U JP7894783 U JP 7894783U JP S59187250 U JPS59187250 U JP S59187250U
- Authority
- JP
- Japan
- Prior art keywords
- multipath noise
- noise suppression
- suppression device
- controller
- 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
Landscapes
- Noise Elimination (AREA)
- Stereo-Broadcasting Methods (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図は従来装置を適用したＦＭ受信機を示すブロック
図、及び第２図は本考案による装置を適用したＦＭ受信
機を示すブロック図である。
２・・・フロントエンド、３・・・ＩＦ検波部、４・・
・電子ボリューム、６・・・ハイカット制−器ミ７・・
・セパレーション制御器、１０・・・ＡＧＣ回路、１１
・・・ＡＭ検波回路、１２・・・ＤＣ検出回路、１３・
・・引き算回路、１４・・・自乗回路、１５・・・平方
根回路、１６・・・割り算回路。FIG. 1 is a block diagram showing an FM receiver using a conventional device, and FIG. 2 is a block diagram showing an FM receiver using a device according to the present invention. 2...Front end, 3...IF detection section, 4...
・Electronic volume, 6...High cut control device Mi 7...
- Separation controller, 10...AGC circuit, 11
...AM detection circuit, 12...DC detection circuit, 13.
...Subtraction circuit, 14... Square circuit, 15... Square root circuit, 16... Division circuit.
Claims (1)
御器及びセパレーション制御器を有し、これらを制御す
ることによりマルチパスノイズを抑圧する装置であって
、中間周波信号とＦＭ検波信号とに基づき演算を行い反
射比を検出する回路手段を備え、該回路手段によって求
めた反射比をコントロール信号として前記電子ボリュー
ム、ハイカット制御器及びセパレーション制御器を制御
するようにしたことを特徴とするマルチパスノイズ抑圧
装置。This device has an electronic volume, a high-cut controller, and a separation controller that control the FM demodulated signal, and suppresses multipath noise by controlling these, and performs calculations based on the intermediate frequency signal and the FM detection signal. A multipath noise suppression device comprising circuit means for detecting a reflection ratio, and controlling the electronic volume, high-cut controller, and separation controller using the reflection ratio determined by the circuit means as a control signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7894783U JPS59187250U (en) | 1983-05-27 | 1983-05-27 | Multipath noise suppression device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7894783U JPS59187250U (en) | 1983-05-27 | 1983-05-27 | Multipath noise suppression device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59187250U true JPS59187250U (en) | 1984-12-12 |
Family
ID=30208947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7894783U Pending JPS59187250U (en) | 1983-05-27 | 1983-05-27 | Multipath noise suppression device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59187250U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5442913A (en) * | 1977-09-09 | 1979-04-05 | Matsushita Electric Ind Co Ltd | Multi-path detection circuit |
| JPS5733834A (en) * | 1980-08-07 | 1982-02-24 | Clarion Co Ltd | Frequency modulation noise reducing circuit |
-
1983
- 1983-05-27 JP JP7894783U patent/JPS59187250U/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5442913A (en) * | 1977-09-09 | 1979-04-05 | Matsushita Electric Ind Co Ltd | Multi-path detection circuit |
| JPS5733834A (en) * | 1980-08-07 | 1982-02-24 | Clarion Co Ltd | Frequency modulation noise reducing circuit |
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