JPS60114446U - FM receiver pulse noise suppression device - Google Patents
FM receiver pulse noise suppression deviceInfo
- Publication number
- JPS60114446U JPS60114446U JP48984U JP48984U JPS60114446U JP S60114446 U JPS60114446 U JP S60114446U JP 48984 U JP48984 U JP 48984U JP 48984 U JP48984 U JP 48984U JP S60114446 U JPS60114446 U JP S60114446U
- Authority
- JP
- Japan
- Prior art keywords
- noise
- signal
- pulse
- output
- detection means
- 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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来のパルス性ノイズ抑圧装置の一例、を示す
ブロック図、第２図は本考案による装置の一実施例を示
すブロック図、第３図乃至第５図は第２図中の一部分を
変形した他の実施例をそれぞれ示すブロック図である。
１・・・ローパスフィル汐、２・・・バイパスフィルタ
、３・・・ゲート、４・・・レベルホールド回路、５・
・・ノイズアンプ、６・・・整流回路、７・・・単安定
マルチバイブレータ、８・・・ＡＧＣ回路、９・・・ゲ
インコントロールアンプ、１０・・・信号レベル検波回
路。FIG. 1 is a block diagram showing an example of a conventional pulse noise suppression device, FIG. 2 is a block diagram showing an embodiment of the device according to the present invention, and FIGS. 3 to 5 are a portion of FIG. 2. FIG. 6 is a block diagram showing other modified embodiments. 1...Low pass filter, 2...Bypass filter, 3...Gate, 4...Level hold circuit, 5...
... Noise amplifier, 6 ... Rectifier circuit, 7 ... Monostable multivibrator, 8 ... AGC circuit, 9 ... Gain control amplifier, 10 ... Signal level detection circuit.
Claims (1)
手段の出力に接続されノイズが有るときだけ一瞬信号を
遮断するゲート手段と、該ゲート手段が開いている間の
その出力レベルを保持するレベルホールド手段と、前記
入力信号下のノイズを検出するノイズ検出手段と、該ノ
イズ検出手段の出力信号を増幅し、該出力信号が所定値
以上のレベルになると自動的にゲインコントロールされ
るノイズ増幅手段と、該ノイズ増幅手段の出力信号によ
り前記ゲート手段を駆動するためのパルスを発生するパ
ルス発生手段とを備えるＦＭ受信機のパルス性ノイズ抑
圧装置であって、前記信号遅延手段の出力に信号検波手
段を設け、また前記ノイズ検出手段と前記パルス発生手
段との間に前記信号検波手段の出力によりゲインコント
ロールされるゲインコントロール手段を設けたことを特
徴とするＦＭ受信機のパルス性ノイズ抑圧装置。A signal delay means for delaying an input signal; a gate means connected to the output of the signal delay means for momentarily cutting off the signal only when there is noise; and a gate means for maintaining the output level while the gate means is open. level holding means; noise detection means for detecting noise under the input signal; and noise amplification that amplifies the output signal of the noise detection means and automatically performs gain control when the output signal reaches a level equal to or higher than a predetermined value. and pulse generating means for generating a pulse for driving the gate means using the output signal of the noise amplifying means, the pulse noise suppressing device for an FM receiver comprising: A pulse noise suppression device for an FM receiver, characterized in that a detection means is provided, and a gain control means whose gain is controlled by the output of the signal detection means is provided between the noise detection means and the pulse generation means. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP48984U JPS60114446U (en) | 1984-01-09 | 1984-01-09 | FM receiver pulse noise suppression device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP48984U JPS60114446U (en) | 1984-01-09 | 1984-01-09 | FM receiver pulse noise suppression device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60114446U true JPS60114446U (en) | 1985-08-02 |
| JPH0212757Y2 JPH0212757Y2 (en) | 1990-04-10 |
Family
ID=30472377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP48984U Granted JPS60114446U (en) | 1984-01-09 | 1984-01-09 | FM receiver pulse noise suppression device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60114446U (en) |
-
1984
- 1984-01-09 JP JP48984U patent/JPS60114446U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0212757Y2 (en) | 1990-04-10 |
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