JPH0262876U - - Google Patents
Info
- Publication number
- JPH0262876U JPH0262876U JP14239488U JP14239488U JPH0262876U JP H0262876 U JPH0262876 U JP H0262876U JP 14239488 U JP14239488 U JP 14239488U JP 14239488 U JP14239488 U JP 14239488U JP H0262876 U JPH0262876 U JP H0262876U
- Authority
- JP
- Japan
- Prior art keywords
- output
- limiter
- synthesizing
- pass filter
- 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.)
- Pending
Links
- 230000002194 synthesizing effect Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000003786 synthesis reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Picture Signal Circuits (AREA)
- Television Signal Processing For Recording (AREA)
Description
第１図、第２図は本考案の一実施例の構成を示
すブロツク図、第３図、第４図は波形図である。
２…第１ハイパスフイルタ、３…リミツタ、４
…第１合成手段、６…レベル検出手段、７…パル
ス発生回路、８…第２合成手段。
1 and 2 are block diagrams showing the configuration of an embodiment of the present invention, and FIGS. 3 and 4 are waveform diagrams. 2...First high pass filter, 3...Limiter, 4
...first synthesizing means, 6...level detecting means, 7...pulse generation circuit, 8...second synthesizing means.
Claims (1)
のハイパスフイルタの振幅を制限するリミツタと
、前記映像信号と前記リミツタ出力とを合成する
合成手段よりなるノイズキヤンセル回路において
、前記ハイパスフイルタ出力の所定レベルより大
きい部分を検出する検出手段と、この検出手段に
基づき前記部分に対応するパルスを発生するパル
ス発生回路と、このパルス発生回路出力と前記ハ
イパスフイルタ出力を合成する第２合成手段とを
備え、この第２合成手段の出力が前記リミツタに
供給されることを特徴とするノイズキヤンセル回
路。 A noise canceling circuit comprising a high-pass filter to which a video signal is input, a limiter for limiting the amplitude of the high-pass filter, and a synthesizing means for synthesizing the video signal and the limiter output, wherein A detection means for detecting a portion, a pulse generation circuit for generating a pulse corresponding to the portion based on the detection means, and a second synthesis means for synthesizing the output of the pulse generation circuit and the output of the high-pass filter. 2. A noise canceling circuit, wherein the output of the two combining means is supplied to the limiter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14239488U JPH0262876U (en) | 1988-10-31 | 1988-10-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14239488U JPH0262876U (en) | 1988-10-31 | 1988-10-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0262876U true JPH0262876U (en) | 1990-05-10 |
Family
ID=31408306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14239488U Pending JPH0262876U (en) | 1988-10-31 | 1988-10-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0262876U (en) |
-
1988
- 1988-10-31 JP JP14239488U patent/JPH0262876U/ja active Pending
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