发明名称 |
Video display controller for expanding monochrome data to programmable foreground and background color image data |
摘要 |
A circuit which expands monochrome character image patterns to color form for use in a raster scanned computer display system. Monochrome patterns are expanded from one bit per pixel to n bits per pixel. Foreground and background colors are programmable in a pattern generator which uses data from the expanded source patterns to select appropriate colors and characters for a destination pattern to be displayed. The expanded multicolor image is generated by hardware.
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申请公布号 |
US4878181(A) |
申请公布日期 |
1989.10.31 |
申请号 |
US19870121504 |
申请日期 |
1987.11.13 |
申请人 |
SIGNETICS CORPORATION |
发明人 |
MACKENNA, CRAIG A.;LI, JAN-KWEI J. |
分类号 |
G09G5/02 |
主分类号 |
G09G5/02 |
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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