| Original document(45 pages) Authorized document(44 pages) 中文版 |
A sampling signal generator for system, comprising: generating a sampling signal having a frequency of four times that of color sub-carrier wave, and whose phase is in accordance with the U and V axis of the chrominance signal; an A/D converter for converting the input analog composite television signals into digital signals with the use of the sampling signal; a vertical and a horizontal filter for separating a chrominance signal at each particular sampling point, with the use of a sample value obtained at each sampling point through the A/D conversion, the sample values of first adjacent sampling points adjacent to each particular point, wherein the first adjacent points have a reversed color sub-carrier wave phase to that of each particular point, and wherein the first adjacent point are one line up or below of each particular point, or of second adjacent points on the same line as that of each particular point, wherein the second adjacent points have a reversed color sub-carrier wa |
Application Number
申请号 |
85104163 |
Application Date
申请日 |
1985.05.31 |
| Title 名称 |
Separating filter of luminance and chrominance signals of PAT system |
Publication Number
公开号 |
1006191 |
Publication Date
公开日 |
1986.12.24 |
| Approval Pub. Date |
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Granted Pub. Date |
1989.10.18 |
| International Classification 分类号 |
H04N9/78 |
Applicant(s) Name
申请人 |
Mitsubishi Denki Kabushiki Kaisha |
| Address 地址 |
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| Inventor(s) Name 发明人 |
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| Attorney & Agent 代理人 |
WU BINGFENG HE GUANYUAN |
| More information 更 多 信 息 |
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