JPS60192157U - noise reduction circuit - Google Patents
noise reduction circuitInfo
- Publication number
- JPS60192157U JPS60192157U JP7889784U JP7889784U JPS60192157U JP S60192157 U JPS60192157 U JP S60192157U JP 7889784 U JP7889784 U JP 7889784U JP 7889784 U JP7889784 U JP 7889784U JP S60192157 U JPS60192157 U JP S60192157U
- Authority
- JP
- Japan
- Prior art keywords
- noise reduction
- circuit
- reduction circuit
- output
- video 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.)
- Granted
Links
Landscapes
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
- Picture Signal Circuits (AREA)
- Television Signal Processing For Recording (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図は本考案−実施例のブロック図、第２図はノンリ
ニアエンファシスの特性図、第３図は従来例のブロック
図である。
２・・・ＦＭ復調器、１０・・・ノイズキャンセル回路
、１４・・・ディエンファシス回路。FIG. 1 is a block diagram of an embodiment of the present invention, FIG. 2 is a characteristic diagram of non-linear emphasis, and FIG. 3 is a block diagram of a conventional example. 2... FM demodulator, 10... noise cancellation circuit, 14... de-emphasis circuit.
Claims (1)
記録した媒体より前記映像信号を再生する磁気記録再生
装置のノイズ低減回路において、再生ＦＭ信号を復調す
る復調手段と、該復調手段出力を入力とするバイパスフ
ィルタ型ノイズキャンセル回路と、該バイパスフィルタ
型ノイズキャンセル回路出力を入力とするノンリニアデ
ィエンファシス回路とを備えることを特徴とするノイズ
低減回路。In a noise reduction circuit of a magnetic recording and reproducing device that reproduces a video signal from a medium recorded by FM modulating a video signal subjected to non-linear emphasis, a demodulation means for demodulating the reproduced FM signal and a bypass inputting the output of the demodulation means are provided. 1. A noise reduction circuit comprising a filter-type noise canceling circuit and a non-linear de-emphasis circuit which inputs the output of the bypass filter-type noise canceling circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984078897U JPH0627023Y2 (en) | 1984-05-29 | 1984-05-29 | Noise reduction circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984078897U JPH0627023Y2 (en) | 1984-05-29 | 1984-05-29 | Noise reduction circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60192157U true JPS60192157U (en) | 1985-12-20 |
| JPH0627023Y2 JPH0627023Y2 (en) | 1994-07-20 |
Family
ID=30623302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984078897U Expired - Lifetime JPH0627023Y2 (en) | 1984-05-29 | 1984-05-29 | Noise reduction circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0627023Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5880107A (en) * | 1981-11-04 | 1983-05-14 | Hitachi Ltd | Preephasizing circuit of video tape recorder |
-
1984
- 1984-05-29 JP JP1984078897U patent/JPH0627023Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5880107A (en) * | 1981-11-04 | 1983-05-14 | Hitachi Ltd | Preephasizing circuit of video tape recorder |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0627023Y2 (en) | 1994-07-20 |
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