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Apparatus for displaying data on a video display

  • US 6,104,373 A
  • Filed: 08/22/1997
  • Issued: 08/15/2000
  • Est. Priority Date: 09/12/1996
  • Status: Expired due to Term
First Claim
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1. A video controller subsystem for controlling display of video data on a video display, comprising:

  • (a) a video controller;

    (b) a high-speed memory accessible by the video controller and storing a first portion of the video data;

    (c) a low-speed memory accessible by the video controller and storing a second, different portion of the video data,the video controller alternately accessing the first and second video data portions for display on the video display to reduce bandwidth requirement for video data in the low-speed memory;

    (d) a first datapath coupling the high-speed memory to the video controller; and

    (e) a second datapath coupling the low-speed memory to the video controller.

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