Graphics display system with color look-up table loading mechanism
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United States of America Patent
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-
Mar 21, 2006
Grant Date -
Sep 2, 2004
app pub date -
Feb 3, 2004
filing date -
Nov 9, 1998
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A graphics integrated circuit chip is used in a set-top box for controlling a television display. The graphics chip processes analog video input, digital video input, a graphics input and an audio input simultaneously. The chip includes a display engine that processes graphics images organized as windows. The display engine processes graphics images formatted in any one of a plurality of formats including a color look up table (CLUT) format. A color look-up (CLUT) table loading mechanism preferably facilitates the transfer of real-time CLUT table data during graphics composition. The loading mechanism may be triggered by a window descriptor that contains a color look-up table load command.
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