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11. 发明授权

US5059962A Display system 失效
标题翻译：显示系统
公开(公告)号：US5059962A
公开(公告)日：1991-10-22
申请号：US412029
申请日：1989-09-22
申请人： Kazuo Sekiya , Yuichi Shiraishi
发明人： Kazuo Sekiya , Yuichi Shiraishi
IPC分类号： H04N1/40 , G06T5/00 , G09G5/00 , G09G5/391 , H04N1/41
CPC分类号： G09G5/391 , G09G5/00
摘要： A display system for converting first gray level signals of N bits/dot each, representing 2.sup.N gray levels, to second gray level signals of M bits/dot each, representing 2.sup.M gray levels, where N is an integer larger than or equal to 2 and M is an integer satisfying N>M.gtoreq.1, by separating each of the first gray level signals of N bits into higher M bits and lower N-M bits and respectively using the N-M bit values to select an appropriate table from among 2.sup.N-M tables, each of which stores a distinctive set of P.times.Q modification values satisfying P.times.Q.gtoreq.2.sup.N-M, then respectively adding the M bits and each of the modification values of said selected table to generate P.times.Q second gray level signals, and supplying the resulting second gray level signals to a display device of 2.sup.M gray levels. The first gray level signals may be supplied to a display device of 2.sup.N gray levels having a smaller number of display dots than the display device of 2.sup.M gray levels.
摘要翻译：一种显示系统，用于将表示2N个灰度级的N位/点的第一灰度级信号分别转换为M位/点的第二灰度级信号，表示2M灰度级，其中N是大于或等于2的整数，以及 M是满足N> M> / = 1的整数，通过将N位的第一灰度级信号分离成较高的M位和较低的NM位，并且分别使用NM位值从2N-M中选择适当的表表，其中每个存储满足PxQ> / = 2N-M的独特的PxQ修改值集合，然后分别添加所述选择的表的M位和每个修改值以产生PxQ第二灰度级信号，并且将所得到的第二灰度信号到2M灰度级的显示设备。可以将第一灰度级信号提供给具有比2M灰度级的显示装置少的显示点数的2N个灰度级的显示装置。

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