发明名称 |
Graphic display processing apparatus and method for improving the speed and efficiency of a window system |
摘要 |
A graphic display processing apparatus which includes having a CPU, a VRAM and a display controller, a data operation unit, an access cycle generator, an address generator and a sequential transfer sequencer. The graphic display processing apparatus also includes a mask pattern generator, dot mask generator and data position transformer. In the graphic display processing apparatus block transfer and character drawing are performed at high speeds, thereby making a window system more practical and offering comfortable operational environment to the user.
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申请公布号 |
US5353403(A) |
申请公布日期 |
1994.10.04 |
申请号 |
US19920856172 |
申请日期 |
1992.03.23 |
申请人 |
HITACHI CHUBU SOFTWARE, LTD.;HITACHI, LTD.;HITACHISOFTWARE ENG. CO., LTD. |
发明人 |
KOHIYAMA, TOMOHISA;KITAHARA, JUN;HIRATA, SUNAO;OYAMA, SEIJI;SOEN, TAKUMI;OTE, ICHIRO |
分类号 |
G06F3/153;G06F3/048;G06F3/14;G06F12/00;G06F12/02;G09G5/00;G09G5/14;G09G5/20;G09G5/24;G09G5/36;G09G5/39;G09G5/393;(IPC1-7):G06F15/62 |
主分类号 |
G06F3/153 |
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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