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Display system for computers

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专利汇可以提供Display system for computers专利检索,专利查询,专利分析的服务。并且57 A CPU communicates over a bus (203) with a liquid crystal display (LCD) device (209) by way of a control unit (217), a d is- play memory (213) and another control unit (219). The memory (213) includes a screen image RAM (223) which is a pixel memory cyclically accessed by the latter control unit (219) to keep the display refreshed. The former control unit (217) keeps the contents of the screen image RAM (223) updated in accordance with ASCII codes in a RAM (221), each with an associated attribute code. The control unit (217) converts ASCH character codes into corresponding groups of pixel codes wroten into the screen image RAM (223) by reference to a font partern RAM (225:. ASCll graphic coaes are passed to the scream image RAM (223) without conversion but, in eitner envents the atribute codes selectively modify what goes to the screen image RAM (223), on a character by character ba- sis whether normal or reverse video is emproved. blinking characters are employed , a high speed, imperceptible blio a employed to provide an intermediate visual tone and to imprentent a form of colour emuration to which colour codes in the attribute codes seiect the backgrouna tone (and complementary freground tone) of the display.,下面是Display system for computers专利的具体信息内容。

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