JPS63185354U - - Google Patents
Info
- Publication number
- JPS63185354U JPS63185354U JP7556987U JP7556987U JPS63185354U JP S63185354 U JPS63185354 U JP S63185354U JP 7556987 U JP7556987 U JP 7556987U JP 7556987 U JP7556987 U JP 7556987U JP S63185354 U JPS63185354 U JP S63185354U
- Authority
- JP
- Japan
- Prior art keywords
- matching resistor
- noise removal
- filter
- removal circuit
- circuit
- 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
- 239000003990 capacitor Substances 0.000 claims 1
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Picture Signal Circuits (AREA)
Description
第１図は本考案の一実施例の回路図である。 FIG. 1 is a circuit diagram of an embodiment of the present invention.
Claims (1)
ワ回路と、該回路の出力側に直列接続される第１
のマツチング抵抗と、該抵抗の後段に接続される
ハイカツトフイルタと、該フイルタの後段に接地
との間に接続される第２のマツチング抵抗とで構
成したことを特徴とするノイズ除去回路。 (2) 上記フイルタの遮断周波数が５ＭＨｚであ
ることを特徴とする実用新案登録請求の範囲第１
項記載のノイズ除去回路。 (3) 上記第２のマツチング抵抗が、第１のマツ
チング抵抗と同値であることを特徴とする実用新
案登録請求の範囲第１項又は第２項記載のノイズ
除去回路。 (4) 上記第２のマツチング抵抗が、その出力側
に直流カツト用コンデンサを介してアナログスイ
ツチを有することを特徴とする実用新案登録請求
の範囲第１項又は第２項記載のノイズ除去回路。[Claims for Utility Model Registration] (1) An emitter follower circuit that inputs a video detection output signal, and a first emitter follower circuit that is connected in series to the output side of the circuit.
1. A noise removal circuit comprising: a matching resistor; a high-cut filter connected after the resistor; and a second matching resistor connected after the filter and ground. (2) Claim 1 of the utility model registration characterized in that the cut-off frequency of the filter is 5 MHz.
Noise removal circuit described in section. (3) The noise removal circuit according to claim 1 or 2, wherein the second matching resistor has the same value as the first matching resistor. (4) The noise removal circuit according to claim 1 or 2, wherein the second matching resistor has an analog switch on its output side via a DC cut capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7556987U JPS63185354U (en) | 1987-05-20 | 1987-05-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7556987U JPS63185354U (en) | 1987-05-20 | 1987-05-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63185354U true JPS63185354U (en) | 1988-11-29 |
Family
ID=30921834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7556987U Pending JPS63185354U (en) | 1987-05-20 | 1987-05-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63185354U (en) |
-
1987
- 1987-05-20 JP JP7556987U patent/JPS63185354U/ja active Pending
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