Screen display unit capable of displaying greater number of colors on the same screen
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United States of America Patent
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-
Feb 1, 2005
Grant Date -
Sep 19, 2002
app pub date -
Jun 13, 2001
filing date -
Jan 16, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A screen display unit includes a display RAM to which a CPU writes palette codes corresponding to character codes, and a selector for selecting display color data read from one of two color palettes on a character code by character code basis in response to the palette codes read from the display RAM. The selector can select one of the two color palettes on a character code by character code basis, thereby making it possible to carry out display in a greater number colors on the same screen than the number of colors indicatable by the display color codes stored in the display RAM without increasing the capacity of a font data memory.
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