JPS6090987U - Digital color signal and disconnection circuit - Google Patents
Digital color signal and disconnection circuitInfo
- Publication number
- JPS6090987U JPS6090987U JP18251583U JP18251583U JPS6090987U JP S6090987 U JPS6090987 U JP S6090987U JP 18251583 U JP18251583 U JP 18251583U JP 18251583 U JP18251583 U JP 18251583U JP S6090987 U JPS6090987 U JP S6090987U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- color signal
- circuit
- digital color
- disconnection 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
Landscapes
- Processing Of Color Television Signals (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、第２図はカラー画像信号の波形図、第３図はカ
ラー信号のデジタル化の説明図、第４図は本考案による
デジタル色しゃ断回路の一実施例のブロック図、第５図
は第４図の雑音レベル検出回路の一実施例のブロック図
である。
１００・・・・・・バースト信号の振幅を検出し、基準
値と比較しその結果により色しゃ断信号を出力する回路
、２００・・・・・・雑音レベルを検出し、基準値と比
較しその結果により色しゃ断信号を出力する回路。1 and 2 are waveform diagrams of color image signals, FIG. 3 is an explanatory diagram of digitization of color signals, FIG. 4 is a block diagram of an embodiment of the digital color cutoff circuit according to the present invention, and FIG. 5 5 is a block diagram of one embodiment of the noise level detection circuit of FIG. 4. FIG. 100...A circuit that detects the amplitude of a burst signal, compares it with a reference value, and outputs a color cutoff signal based on the result, 200...A circuit that detects a noise level, compares it with a reference value, and outputs a color cutoff signal. A circuit that outputs a color cutoff signal depending on the result.
Claims (1)
れた搬送色信号から抽出されたバースト信号および雑音
信号のそれぞれの大きさを検出する回路と、前記検出さ
れたバースト信号および雑音信号をそれぞれ既定の基準
レベルと比較する回路と、前記比較の結果バースト信号
でその基準レベル以下又は／及び雑音信号がその基準レ
ベル以上の場合に搬送色信号をしゃ断する信号を出力す
る一′ 回路とからなるデズタル色信号しゃ断回路
。In a digital television receiver, a circuit detects the respective magnitudes of a burst signal and a noise signal extracted from a digitized carrier color signal, and sets the detected burst signal and noise signal to predetermined reference levels. and a circuit that outputs a signal to cut off the carrier color signal when the result of the comparison is that the burst signal is below the reference level and/or the noise signal is above the reference level. circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18251583U JPS6090987U (en) | 1983-11-25 | 1983-11-25 | Digital color signal and disconnection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18251583U JPS6090987U (en) | 1983-11-25 | 1983-11-25 | Digital color signal and disconnection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6090987U true JPS6090987U (en) | 1985-06-21 |
Family
ID=30395240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18251583U Pending JPS6090987U (en) | 1983-11-25 | 1983-11-25 | Digital color signal and disconnection circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6090987U (en) |
-
1983
- 1983-11-25 JP JP18251583U patent/JPS6090987U/en active Pending
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