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2024年4月23日发(作者：手机上怎么改视频格式)
专利内容由知识产权出版社提供
专利名称：Virtual display adapter
发明人：Gupta, Satish,Larky, Steven Philip,Peevers,
Alan Wesley,St. Clair, Joe Christopher
申请号：EP89106573.2
申请日：19890413
公开号：EP0338416A3
公开日：19911211
专利附图：
摘要：A display control means such as a virtual display adapter (110) allows the
advanced functions of a display controller to be utilized in a large area of memory in
addition to the normal use in display memory (120). This large area of memory includes
system memory (130), and efficient access to this large area of memory is permitted for
normal system use. The display controller also functions with non-contiguous and non-
resident bitmaps. The flexibility of demand-paged virtual memory is utilized for display
tasks, as display bitmaps may be written to the large area of memory as well as the
display memory.
申请人：International Business Machines Corporation
地址：Old Orchard Road Armonk, N.Y. 10504 US
国籍：US
代理机构：Teufel, Fritz, Dipl.-Phys.
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