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发明名称
Maintaining the mean values of the luminance and/or saturation of video signals
摘要
申请公布号
GB2235602(A)
申请公布日期
1991.03.06
申请号
GB19890019340
申请日期
1989.08.25
申请人
* PHILIPS ELECTRONIC AND ASSOCIATED INDUSTRIES LIMITED
发明人
TIMOTHY IAN PATERSON * TREW
分类号
H04N5/202;H04N9/69
主分类号
H04N5/202
代理机构
代理人
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