Screen display unit capable of displaying greater number of...

Details Screen display unit capable of displaying greater number of... Screen display unit capable of displaying greater number of...

2005-02-01

2005-02-01

Bella, Matthew C. (Department: 2676)

Computer graphics processing and selective visual display system

Computer graphics processing

Attributes

C345S593000, C345S601000, C345S602000, C345S549000, C345S531000

Reexamination Certificate

active

06850246

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.

REFERENCES:
patent: 4443794 (1984-04-01), Sakurai
patent: 4490797 (1984-12-01), Staggs et al.
patent: 4789855 (1988-12-01), Ozeki
patent: 4942389 (1990-07-01), Hinami
patent: 4991120 (1991-02-01), Vaiana
patent: 5539431 (1996-07-01), Nishioka et al.
patent: 5949409 (1999-09-01), Tanaka et al.
patent: 6373497 (2002-04-01), McKnight et al.
patent: A 63-106791 (1988-05-01), None
patent: A 63-305387 (1988-12-01), None

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