发明授权
US4912658A Method and apparatus for addressing video RAMS and refreshing a video
monitor with a variable resolution
失效
用于解决视频RAMS并用可变分辨率刷新视频监视器的方法和装置
- 专利标题： Method and apparatus for addressing video RAMS and refreshing a video monitor with a variable resolution
- 专利标题（中）： 用于解决视频RAMS并用可变分辨率刷新视频监视器的方法和装置
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申请号： US853586申请日： 1986-04-18
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公开(公告)号： US4912658A公开(公告)日： 1990-03-27
- 发明人: Adrian Sfarti , Achim Strupat
- 申请人： Adrian Sfarti , Achim Strupat
- 申请人地址： CA Sunnyvale
- 专利权人： Advanced Micro Devices, Inc.
- 当前专利权人： Advanced Micro Devices, Inc.
- 当前专利权人地址： CA Sunnyvale
- 主分类号： G06T1/60
- IPC分类号： G06T1/60 ; G09G5/36 ; G09G5/39
摘要：
A graphics controller having the capacity for translating X and Y logical addresses of words in a bit map into corresponding physical row and column addresses of words in a plurality of memory chips, for addressing selected bits within a word and for refreshing a video monitor with and without window segments beginning and ending with bits located inside word boundaries.