JPS59149737U - FM tuner with multipath noise removal device - Google Patents
FM tuner with multipath noise removal deviceInfo
- Publication number
- JPS59149737U JPS59149737U JP4194083U JP4194083U JPS59149737U JP S59149737 U JPS59149737 U JP S59149737U JP 4194083 U JP4194083 U JP 4194083U JP 4194083 U JP4194083 U JP 4194083U JP S59149737 U JPS59149737 U JP S59149737U
- Authority
- JP
- Japan
- Prior art keywords
- tuner
- output
- removal device
- noise removal
- multipath noise
- 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図は従来のＦＭチューナのブロック図、第２図はマ
ルチパスノイズ発生を説明するためのベクトル図Ａと波
形図８１第３図は本考案の一実施例よりなるマルチパス
ノイズ除去装置付ＦＭチューナのブロック図、および第
４図はマルチパスノイズ除去前の波形図Ａとマルチパス
ノイズ除去時の波形図Ｂである。
１・・・・・・フロントエンド、２・・・・・・中間周
波アンプ、１０・・・・・・全波整流回路。Fig. 1 is a block diagram of a conventional FM tuner, Fig. 2 is a vector diagram A and waveform diagram 81 for explaining multipath noise generation, and Fig. 3 is a multipath noise removal device according to an embodiment of the present invention. The block diagram of the FM tuner and FIG. 4 are waveform diagram A before multipath noise removal and waveform diagram B when multipath noise is removed. 1...Front end, 2...Intermediate frequency amplifier, 10...Full wave rectifier circuit.
Claims (1)
、その出力をさらに狭帯域に選択し増幅する中間周波ア
ンプと、その出力をＦ〜１検波する検波回路と、その出
力のうちパルス性ノイズを除去するノイズキャンセラと
、ステレオ信号をＬチャンネルとＲチャンネルとに分離
するマルチプレクサとを有するＦＭチューナにおいて、
前記フロ−ントエンドの出力側に全波整流回路を設けて
、中間周波波形の位相が連続となるように構成したこと
を特徴とするマルチパスノイズ除去装置付ＦＭチューナ
。A front end that selects only radio waves of the desired frequency to be received, an intermediate frequency amplifier that selects and amplifies its output into a narrower band, a detection circuit that detects F~1 of that output, and removes pulse noise from that output. In an FM tuner that has a noise canceler that separates a stereo signal into an L channel and an R channel,
An FM tuner with a multipath noise removal device, characterized in that a full-wave rectifier circuit is provided on the output side of the front end so that the phase of the intermediate frequency waveform is continuous.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4194083U JPS59149737U (en) | 1983-03-25 | 1983-03-25 | FM tuner with multipath noise removal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4194083U JPS59149737U (en) | 1983-03-25 | 1983-03-25 | FM tuner with multipath noise removal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59149737U true JPS59149737U (en) | 1984-10-06 |
Family
ID=30172503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4194083U Pending JPS59149737U (en) | 1983-03-25 | 1983-03-25 | FM tuner with multipath noise removal device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59149737U (en) |
-
1983
- 1983-03-25 JP JP4194083U patent/JPS59149737U/en active Pending
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