发明名称 |
Multi-screen display control system and its method |
摘要 |
In a transfer data screen buffer added to a multi-window display, a command stream for displaying segments to be displayed and superposed over the multi-window display is stored. By the execution of the command stream, the display data developed into a bit map undergoes exclusive OR operation bit by bit with the bit-map developed data of the multi-window data. The operation result is fed back to the display screen bit map memory to be displayed.
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申请公布号 |
US4914607(A) |
申请公布日期 |
1990.04.03 |
申请号 |
US19870035982 |
申请日期 |
1987.04.08 |
申请人 |
HITACHI, LTD. |
发明人 |
TAKANASHI, KATSUYA;YAMADA, KIMITOSHI |
分类号 |
G06F3/14;G06F3/048;G06T1/00;G06T11/00;G09G5/14 |
主分类号 |
G06F3/14 |
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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