发明名称 Graphics coprocessor board with hardware scrolling window.
摘要 <p>A graphics coprocessor adapter with hardware support for horizontal scrolling is disclosed. A graphics processor provides both a row address with a RAS signal and a column address with a CAS signal to two banks of video RAMs. Both banks are provided with the same scrolling column address signal. Translating logic intercepts the column address signal for the static plane RAM bank and translates it into a fixed value. Thus, a single column address signal can control both the scrolling and static planes. &lt;IMAGE&gt;</p>
申请公布号 EP0543271(A2) 申请公布日期 1993.05.26
申请号 EP19920119286 申请日期 1992.11.11
申请人 NELLCOR INCORPORATED 发明人 GODFREY, TIM G.
分类号 G06F3/14;G06F3/048;G09G5/00;G09G5/06;G09G5/34;G09G5/36;(IPC1-7):G09G5/34 主分类号 G06F3/14
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