Method and apparatus for providing overlay images

Details Method and apparatus for providing overlay images Method and apparatus for providing overlay images

2005-05-24

2005-05-24

Zimmerman, Mark (Department: 2671)

Computer graphics processing and selective visual display system

Computer graphics display memory system

First in first out

C345S538000

Reexamination Certificate

active

06897874

ABSTRACT:
A circuit for providing an overlay in a window on a computer output display including scaling circuitry, storage circuitry for receiving a plurality of lines of source data, input circuitry for loading the storage circuitry in a first prefill mode and in a second low water mark mode, and circuitry for selecting a mode for loading the storage circuitry responsive to the characteristics of the demand for data placed on the storage circuitry.

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