发明名称 |
Extended composite television system. |
摘要 |
<p>Cross-luminance and cross-color artifacts can be eliminated if in an extended encoder the chrominance information is made pairwise equal at two time instants and the luminance information (i.e. the high horizontal frequencies) is also made equal at these two time instants. In an extended decoder, the high-frequency luminance information can be separated again from the modulated chrominance information by, for example, (i) subtracting the information of the pairs at the above-mentioned time instants and by dividing them by 2 (this yields chrominance), and by (ii) averaging the information of the pairs at these time instants (this yields high-frequency luminance).</p> |
申请公布号 |
EP0471424(A2) |
申请公布日期 |
1992.02.19 |
申请号 |
EP19910202813 |
申请日期 |
1990.03.26 |
申请人 |
N.V. PHILIPS' GLOEILAMPENFABRIEKEN |
发明人 |
FUEHREN, MARCEL;ANNEGARN, MARCELLINUS JOSEPH JOHANNES C.;VAN DE POLDER, LEENDERT JOHAN;RAVEN, JOHANNES GERARDUS |
分类号 |
H04N7/015;H04N7/08;H04N7/081;H04N9/64;H04N11/00;H04N11/08;H04N11/16;H04N11/18;H04N11/20;H04N11/24;(IPC1-7):H04N11/00 |
主分类号 |
H04N7/015 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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