专利内容由知识产权出版社提供
专利名称：Graphics computer
发明人：Mamoru Ohba,Mitsuru Watabe,Rika
Minami,Koyo Katsura
申请号：US08/355517申请日：19941214公开号：US05771047A公开日：19980623
摘要：To reduce the hardware of the graphics computer in size and reduce the cost ofthe hardware, the frame buffer and the main memory are united into one unit to processgraphics data in the CPU. The frame buffer is arranged in the main memory, and thegraphics computer includes a DMAC used to read pixel data from the frame buffer fordisplay, a display used to receive the pixel data and display it on a display device, such asan LCD, etc., and memories used to store the procedure used by the CPU to draw thepixel data in the said frame buffer. Especially, the said memories are formed so that asingle function procedure and a multifunction procedure can be selected to suit thedrawing object. In addition, the single function procedure includes a line drawingprocedure that uses data tables and a multivalue expansion procedure that uses apattern table and a mask table. Since the frame buffer and the main memory are unitedinto one unit, the CPU can be used to process graphics data. Thus, the graphics computerhardware is reduced in size and the cost of the hardware is reduced.
申请人：HITACHI, LTD.
代理机构：Antonelli, Terry, Stout, & Kraus, LLP
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