| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an image drawing device that enlarges an image at high speed. <P>SOLUTION: A control part 41 outputs a writing signal. A comparator 46 outputs a line finish signal every time line data are written. An X increment circuit 42 generates an X address incremented by 1/K in succession upon every writing signal input, and outputs its integral part X1. A Y increment circuit 45 generates a Y address incremented by 1/K in succession upon every line finish signal input, and outputs its integral part Y1. An X increment circuit 43 generates and outputs a second X address incremented by 1 in succession upon every writing signal input. A Y increment circuit 44 generates and outputs a second Y address incremented by 1 in succession upon every line finish signal input. Data in the address specified by X1 and Y1 are read from a buffer A, and original image data are rendered to a frame buffer 19 in dependence on the second X address and second Y address. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
